WO2020253434A1 - Light-emitting device and projection system - Google Patents

Light-emitting device and projection system Download PDF

Info

Publication number
WO2020253434A1
WO2020253434A1 PCT/CN2020/090762 CN2020090762W WO2020253434A1 WO 2020253434 A1 WO2020253434 A1 WO 2020253434A1 CN 2020090762 W CN2020090762 W CN 2020090762W WO 2020253434 A1 WO2020253434 A1 WO 2020253434A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
wavelength
light guide
guide
excitation
Prior art date
Application number
PCT/CN2020/090762
Other languages
French (fr)
Chinese (zh)
Inventor
李屹
Original Assignee
深圳光峰科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳光峰科技股份有限公司 filed Critical 深圳光峰科技股份有限公司
Publication of WO2020253434A1 publication Critical patent/WO2020253434A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/206—Control of light source other than position or intensity

Definitions

  • the present invention relates to the field of projection technology, in particular to a light emitting device and a projection system.
  • the light source 1 is a laser light source for emitting excitation light; a diffuser 2 arranged in the light-emitting direction of the light source 1; a diffuser 2 arranged in the light-emitting direction of the diffuser 2 and at an angle of 45° to the light-emitting direction Dichroic mirror 3; a fluorescent color wheel 5 arranged in the direction of light emission of the dichroic mirror 3.
  • the fluorescent color wheel 5 is provided with a laser transmission area and a wavelength conversion area coated with phosphor; a relay arranged around the fluorescent color wheel 5 Circuit 7, wherein the relay circuit 7 includes an optical path conversion system composed of three lenses and three mirrors; in addition, it also includes two collimating components, among which, a collimator is arranged between the dichroic mirror 3 and the fluorescent color wheel 5.
  • a collimating component 6 is arranged between the straight component 4, the fluorescent color wheel 5 and the relay circuit 7.
  • the laser When the laser is irradiated to the laser transmission area, the laser passes through the laser transmission area, after being collimated by the collimating component 6, it is turned by the relay circuit 7 and exits through the dichroic mirror 3; when the laser is irradiated to the wavelength of the fluorescent color wheel 5 In the conversion zone, the phosphor excited in the wavelength conversion zone is excited to emit fluorescence, and the excited fluorescence is irradiated to the dichroic mirror 3 through the collimating component 4, and then exits after being reflected by the dichroic mirror 3. The emitted laser and fluorescence are reduced After being homogenized by the homogenization component, it enters the display chip for imaging. With the rotation of the fluorescent color wheel 5, the light source system can continuously obtain laser light and fluorescent light emitted sequentially. The laser light and fluorescence emitted by the laser light source are imaged on the display chip of the optical machine.
  • the light source system in the prior art has higher light efficiency than traditional light sources.
  • the relay circuit 7 After the laser has passed through the laser transmission area of the fluorescent color wheel 5, it needs to pass through the relay circuit for steering before passing through the two-way The color mirror 3 combines light.
  • the relay circuit 7 will lose light, making the light efficiency unable to meet the higher requirements for light efficiency in this field.
  • the relay circuit 7 includes three lenses and three mirrors. , The light path structure is complicated, which invisibly increases the cost, and also makes the light source system larger.
  • the invention provides a light emitting device, which is characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
  • the light source includes a first light source, and the first light source is used to emit a first excitation light;
  • the light guide system is used to guide the first excitation light to the wavelength conversion device
  • the wavelength conversion device at least includes a wavelength conversion section and a non-wavelength conversion section, and the wavelength conversion device is formed by splicing the ring-shaped or fan-shaped wavelength conversion section and the wavelength non-conversion section.
  • the wavelength conversion section is excited by the first excitation light to generate second wavelength light, and the non-wavelength conversion section reflects the first excitation light to obtain first wavelength light;
  • wavelength coverage of the first wavelength light and the second wavelength light are different
  • the light guide system is also used to guide the first wavelength light and the second wavelength light along the exit light channel.
  • the wavelength conversion device further includes a driving device that periodically moves to make the wavelength conversion section and the non-wavelength conversion section time-sharing located at the position of the first excitation light Light path,
  • the wavelength conversion section includes at least one light-emitting layer, and the light-emitting layer is one of an organic bonding material phosphor layer, an inorganic bonding material phosphor layer, or a fluorescent ceramic.
  • the non-wavelength conversion section includes at least one reflective layer or optical film layer for reflecting the first excitation light
  • the reflective layer includes a metal reflective layer for specular reflection or a scattering layer. Diffuse reflection layer
  • the optical film layer includes one of a dielectric film layer, a filter layer or a dichroic film that can reflect the first excitation light wavelength band.
  • the invention provides a light emitting device, which is characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
  • the light source includes a first light source, the first light source is used to emit a first excitation light, and the first excitation light is incident to the light guiding system along an incident light channel;
  • the light guide system is used to guide the first excitation light to the wavelength conversion device
  • the wavelength conversion device includes at least a wavelength conversion section and a non-wavelength conversion section.
  • the wavelength conversion section is excited by the first excitation light to generate a second wavelength light, and the non-wavelength conversion section reflects The first excitation light obtains light of a first wavelength;
  • the light guide system is also used to guide the first wavelength light and the second wavelength light to exit along an exit light channel;
  • the first excitation light is obliquely directed toward the light wavelength conversion device after passing through the light guiding system.
  • the light guiding system includes a lens system, the lens system is arranged on the optical path of the first excitation light, and the first excitation light is incident from a non-central position of the lens system so that the The optical paths of the first excitation light and the first wavelength light do not overlap.
  • the light guide system includes at least a first light guide and a second light guide.
  • the first light guide is arranged on the optical path of the first excitation light, and the first light guide transmits Or reflect the first excitation light;
  • the second light guide is arranged on the optical path of the first wavelength light, and the second light guide transmits or reflects the first wavelength light.
  • the first excitation light is transmitted through the first light guide into the lens system, collected by the lens system and entered into the wavelength conversion device, and the wavelength conversion device reflects the first
  • the excitation light obtains the first wavelength light
  • the first wavelength light is incident to the second light guide through the lens system
  • the second light guide reflects the first wavelength light to an exit light channel.
  • the second light guide is arranged on the optical path between the first light guide and the first light source, and the first excitation light is transmitted through the first light guide and enters the
  • the lens system is collected by the lens system and enters the wavelength conversion device, the wavelength conversion device reflects the first excitation light to obtain the first wavelength light, and the first wavelength light is collected by the lens system and enters the
  • the first light guide is transmitted into the second light guide through the first light guide, and the second light guide reflects the light of the first wavelength to the exit light channel.
  • the light guide system further includes a first relay lens and a reflective element, and the first relay lens is used to collect the second wavelength light and the light beam reflected by the first light guide.
  • the first wavelength light reflected by the second light guide, the first relay lens transmits the collected first wavelength light and the second wavelength light to the reflective element, and the reflective element reflects The first wavelength light and the second wavelength light.
  • the light guide system further includes a third light guide, the third light guide is disposed on the optical path between the first relay lens and the reflective element, and the first relay The lens transmits the collected light of the first wavelength to the third light guide, and the third light guide emits the light of the first wavelength.
  • the light guiding system further includes an optical film, the optical film including a first area, a third area, and a fourth area;
  • the first region transmits the first excitation light and the first wavelength light and reflects the second wavelength light
  • the third region reflects the first excitation light, the first wavelength light, and the second wavelength light
  • the fourth area reflects the second wavelength light.
  • the first excitation light is transmitted through the first region and enters the lens system, the lens system collects the first excitation light and enters the wavelength conversion device, and the wavelength conversion device reflects The first excitation light obtains the first wavelength light, the first wavelength light is collected by the lens system to the third area, and the third area reflects the first wavelength light to the first A light guide, the first light guide transmits the first wavelength light to the second light guide, and the second light guide reflects the first wavelength light.
  • the first excitation light is transmitted through the first region and enters the lens system, the lens system collects the first excitation light and enters the wavelength conversion device, and the wavelength conversion device reflects The first excitation light obtains the first wavelength light, the first wavelength light is collected by the lens system to the third area, and the third area reflects the first wavelength light to the second A light guide, and the second light guide reflects the first wavelength light.
  • the light guide system further includes at least one excitation light guide, the excitation light guide is disposed on the optical path between the first light guide and the wavelength conversion device, and the excitation light guide The component reflects or transmits the first excitation light and the first wavelength light.
  • the first excitation light is reflected by the excitation light guide into the lens system, the lens system collects the first excitation light to the wavelength conversion device, and the wavelength conversion device reflects The first excitation light obtains the first wavelength light, the first wavelength light is collected by the lens system to the first light guide, and the first light guide transmits the first wavelength light to The second light guide, the second light guide reflects the first wavelength light.
  • the first excitation light is reflected by the excitation light guide into the lens system, the lens system collects the first excitation light to the wavelength conversion device, and the wavelength conversion device reflects The first excitation light obtains the first wavelength light, the first wavelength light is collected by the lens system to the second light guide, and the second light guide reflects the first wavelength light.
  • the light guide system includes a first relay lens, a third light guide, and a fourth light guide;
  • the first relay lens is used to collect the second wavelength light reflected by the first light guide and the first wavelength light reflected by the second light guide, and the first relay lens will collect
  • the first wavelength light and the second wavelength light are transmitted to the third light guide, and the third light guide reflects the first wavelength light and transmits the second wavelength light to the first Four light guides, the fourth light guide reflects the second wavelength light.
  • the light guide system includes a first relay lens, a third light guide, and a fourth light guide;
  • the first relay lens is used to collect the second wavelength light reflected by the first light guide and the first wavelength light reflected by the second light guide, and the first relay lens will collect
  • the first wavelength light and the second wavelength light are transmitted to the fourth light guide, and the fourth light guide reflects the second wavelength light and transmits the first wavelength light to the first wavelength light.
  • the third light guide reflects the first wavelength light.
  • the light guide system further includes a reflective element and an optical film
  • the reflecting element is used to reflect the first excitation light, the first wavelength light and the second wavelength light;
  • the optical film includes a first area, a second area, and a third area.
  • the first area transmits the first excitation light and the first wavelength light and reflects the second wavelength light
  • the second area reflects The first excitation light and the first wavelength light
  • the third region reflects the second wavelength light
  • the light guide system further includes at least three excitation light guides.
  • the excitation light guide is disposed on the optical path of the first excitation light, and any one of the excitation light guides reflects The first excitation light transmits the second wavelength light.
  • the main optical axis of the first excitation light is incident parallel to the central axis of the lens system
  • the main optical axis of the first excitation light is incident non-parallel to the central axis of the lens system.
  • the invention provides a light emitting device, which is characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
  • the light source includes a first light source, and the first light source is used to emit a first excitation light;
  • the light guide system is used to guide the first excitation light to the wavelength conversion device
  • the wavelength conversion device includes at least a wavelength conversion section and a non-wavelength conversion section.
  • the wavelength conversion section is excited by the first excitation light to generate a second wavelength light, and the non-wavelength conversion section reflects The first excitation light obtains light of a first wavelength;
  • the light guiding system is also used to collect the first wavelength light and the second wavelength light, and the main optical axis of the first wavelength light and the second wavelength light before entering the exit light channel are parallel and the distance is less than a threshold.
  • the light guide system includes a relay lens assembly for collecting the first wavelength light and the second wavelength light so that the first wavelength light and the second wavelength light Enter the exit light channel according to a predetermined optical expansion amount.
  • the light guide system includes at least a first light guide and a second light guide, the first light guide is arranged on the optical path of the second wavelength light, and the first light guide is used for To guide the second wavelength light;
  • the second light guide is arranged on the optical path of the first wavelength light, and the second light guide is used to guide the first wavelength light so that the first wavelength light before entering the exit light channel Coincides with the main optical axis of the second wavelength light.
  • the light guiding system includes at least one of a mirror, a lens, or an optical film.
  • the light guiding system includes a curved mirror for changing the direction and angular distribution of incident light; or
  • the optical guiding system includes a plane mirror and a lens, the plane mirror is used to change the direction of the incident light, and the lens is used to change the angular distribution of the incident light.
  • the optical guidance system includes a convex mirror, a convex mirror, a combination of a flat mirror and a concave lens, or a combination of a flat mirror and a convex lens.
  • the light source further includes a second light source, and the second light source is used to emit compensation light;
  • the light guide system includes a compensation light guide, the compensation light guide is disposed on the optical path of the compensation light, wherein the compensation light guide guides the compensation light to coincide with the optical axis of the second wavelength light .
  • the light-emitting device includes a light homogenization device, the light homogenization device is arranged on the optical path of the first excitation light, and the light homogenization device is used for the first excitation light emitted by the first light source.
  • the light is homogenized, and the homogenization device includes one of a fly-eye lens group, an integrator rod, or a light guide rod.
  • the fly-eye lens group includes a first lens array and a second lens array arranged in sequence along the direction of the first excitation light, and each lens unit constituting the first lens array is used in the wavelength conversion device Surface overlap imaging.
  • the present invention provides a projection system, including any one of the light-emitting devices described above, and further including a spatial light modulation system device and a lens system.
  • the embodiment of the present invention may include the following beneficial effects.
  • the light emitting device of the embodiment of the present invention configures the light guiding system and the wavelength conversion device to make the first wavelength light reflected by the non-wavelength conversion section of the wavelength conversion device and The second-wavelength photosynthetic light emitted by the wavelength conversion device is emitted along the exit light channel without additional optical elements and beam transmission paths.
  • the effect of optical elements on the beam is reduced as much as possible. Absorb loss.
  • FIG. 1 is a schematic diagram of a structure of a light emitting device in the prior art
  • Fig. 2 is a schematic diagram of the angle correction principle of the fly-eye lens group
  • Figure 3 is a schematic view of the structure of a light guide in an embodiment
  • Fig. 4 is a schematic structural diagram of a wavelength conversion device in an embodiment
  • Fig. 5 is a schematic structural diagram of a filter wheel in an embodiment
  • FIG. 6 is a schematic structural view of the coaxial arrangement of the wavelength conversion device 11 and the filter wheel 22 in an embodiment
  • FIG. 7 is a schematic structural diagram of an optical axis correction element 701 in an embodiment
  • FIG. 8A is a schematic structural diagram of a light emitting device in an embodiment
  • FIG. 8B is a schematic structural diagram of a light emitting device in an embodiment
  • FIG. 8C is a schematic diagram of the structure of a light emitting device in an embodiment
  • FIG. 8D is a schematic structural diagram of a light emitting device in an embodiment
  • Fig. 9 is a schematic structural diagram of a light emitting device in an embodiment
  • FIG. 10 is a schematic diagram of the structure of a light emitting device in an embodiment
  • FIG. 11 is a schematic structural diagram of a light emitting device in an embodiment
  • FIG. 12 is a schematic diagram of the structure of a light emitting device in an embodiment
  • FIG. 13 is a schematic diagram of the structure of a light emitting device in an embodiment
  • Fig. 14A is a schematic structural diagram of a light emitting device in an embodiment
  • FIG. 14B is a schematic diagram of the structure of the regional beam splitter 404a in an embodiment
  • 15 is a schematic diagram of the structure of a light emitting device in an embodiment
  • Figure 16 is a schematic diagram of the structure of a light emitting device in an embodiment
  • FIG. 17 is a schematic structural diagram of a light emitting device in an embodiment
  • FIG. 18 is a schematic diagram of a structure of a light emitting device in an embodiment
  • FIG. 19A is a schematic diagram of the structure of a light emitting device in an embodiment
  • FIG. 19B is a schematic diagram of the structure of the area beam splitter 504 in an embodiment
  • 19C is a schematic diagram of a radial cross-section of a non-wavelength conversion section in an embodiment
  • 19D is a schematic diagram of a radial cross-section of a non-wavelength conversion section in an embodiment
  • 19E is a schematic diagram of a radial cross-section of a non-wavelength conversion section in an embodiment
  • 20 is a schematic diagram of the structure of a light emitting device in an embodiment
  • FIG. 21 is a schematic diagram of the structure of a light emitting device in an embodiment.
  • the main optical axis of the light beam can be understood as the central axis of the light beam, and the direction of the main optical axis is the direction in which the light beam advances.
  • the "coincidence" of the main optical axes of the two beams can be understood as not overlapping in an absolute sense but roughly overlapping within the range of accuracy error (industrial production must have errors).
  • the technical solution that makes the main optical axes of the two beams parallel and the spacing is smaller than the threshold also belongs to the protection scope of the present invention, and this technical solution can also be called It is "coincidence within error range”.
  • the invention provides a light emitting device, which includes a first light source, a light homogenizing device, a light guide, a collecting lens, a wavelength conversion device, and a relay lens.
  • the first light source is used to emit the first excitation light
  • the first excitation light enters the light guide after being homogenized by the light homogenization device, is incident on the collection lens through the light guide, and is collected by the collection lens and then obliquely incident to the wavelength conversion Device;
  • the first excitation light is a solid-state light source, including a laser or LED light source.
  • the light emitted by the solid-state light source is preferably blue light, which is not limited here, and can also be ultraviolet light, green light, etc., when it is blue light, it is beneficial to protect human eyes and has higher excitation efficiency.
  • the wavelength conversion device includes a wavelength conversion section and a non-wavelength conversion section.
  • the wavelength conversion device periodically moves so that the wavelength conversion section and the non-wavelength conversion section are time-shared on the path of the first excitation light.
  • the wavelength conversion section is excited by the first excitation light to generate the second wavelength light.
  • the first excitation light is reflected by the non-wavelength conversion section to obtain the first wavelength light, the first wavelength light and the second wavelength light.
  • the wavelength range of the wavelength light is different.
  • the first wavelength light and the second wavelength light are collected by the collecting lens and transmitted to the light guide, and guided to the first relay lens by the light guide.
  • the first relay lens collects the light of the first wavelength and the light of the second wavelength in time sharing, and transmits the light of the first wavelength and the second wavelength to the subsequent optical system in time sharing, wherein the light guide is used to transfer the light of the wavelength conversion device After the non-wavelength conversion section is reflected, the first wavelength light is guided to coincide with the main optical axis of the second wavelength light.
  • the surface of the non-wavelength conversion section of the wavelength conversion device is parallel to the movement plane of the wavelength conversion device, that is, the rotation axis of the fluorescent color wheel is perpendicular to the surface of the non-wavelength conversion section.
  • the first excitation light is incident on the collection lens at a position away from the center of the collection lens, so that the first excitation light is changed by the collection lens to change the light transmission direction, thereby obliquely Incident to the surface of the wavelength conversion device.
  • the first wavelength light reflected from the non-wavelength conversion section is incident on the collection lens.
  • the first excitation light and the first wavelength light form a "V"-shaped optical path.
  • the surface of the non-wavelength conversion section may not be parallel to the movement plane of the wavelength conversion device, but has an inclination angle with respect to the movement plane of the wavelength conversion device, but it is still necessary to ensure that the first excitation light is oblique
  • the incident method is incident on the surface of the non-wavelength conversion section, thereby realizing the optical path separation of the first excitation light and the first wavelength light. This technical solution can make the optical path design of the light emitting device more flexible and changeable.
  • the homogenization device includes an integrator rod, a light guide rod, a single fly-eye lens, a fly-eye lens group or a lens group, and is used for homogenizing the first excitation light emitted by the first light source. In other embodiments, if the first excitation light emitted by the first light source has better uniformity, the homogenization device may not be provided, which is not limited in the present invention.
  • the principle of homogenization of the first excitation light of the fly-eye lens group is described below.
  • the first excitation light L1 incident on the fly-eye lens group is adjusted to adjust and correct the incident light.
  • the direction of the first excitation light L1 of the guide element is described below.
  • Fig. 2 is a schematic diagram of the angle correction principle of the fly-eye lens group.
  • the fly-eye lens group has a good function of correcting the optical path.
  • the beam 1 is incident along the optical axis parallel to the fly-eye lens group
  • the direction of the main optical axis of the outgoing light remains unchanged and is still parallel to the optical axis of the fly-eye lens group;
  • the beam 2 is incident along the optical axis of the fly-eye lens group at an angle ⁇
  • the main optical axis of the outgoing light beam 2 and the optical axis of the fly-eye lens group form an angle ⁇ , and ⁇ > ⁇ .
  • the fly-eye lens group has the function of reducing the inclination angle of the beam, for example, when ⁇ is about 1°, ⁇ is about 0.2°.
  • the size of the outgoing light angle ⁇ can be adjusted, and the adjustment accuracy is higher than that of directly adjusting ⁇ , so that the beam edge of the first excitation light L1 incident on the collection lens can be aligned with the center axis of the collection lens 205. Keep the spacing as small as possible.
  • this technical solution can be used to control the distance between the beam edge of the first excitation light L1 incident on the collecting lens and the central axis of the collecting lens within the range of 0.2-0.5mm, which greatly improves the surface of the wavelength conversion device.
  • the imaging quality of the light spot provides the basic conditions for the subsequent light distribution of the entire light source device on the exit surface.
  • the fly-eye lens group also has the function of uniformly imaging the light spot.
  • the fly-eye lens group includes a first lens array and a second lens array sequentially arranged along the direction of the first excitation light L1, wherein the first lens array and the second lens array are respectively composed of a plurality of one-to-one corresponding lens units , The optical axes of the two lens arrays are parallel, and the focal point of the lens unit of the first lens array coincides with the center of the corresponding lens unit in the second lens array.
  • Each lens unit of the second lens array overlaps and image the lens unit corresponding to the first lens array at the infinity position, and then the overlapping image at the infinity position is superimposed and formed on the surface of the wavelength conversion device by the action of other lenses in the light source device .
  • the lens units constituting the first lens array overlap and form images on the surface of the wavelength conversion device.
  • the imaging process from the fly-eye lens group to the surface of the wavelength conversion device is an imaging process, once the imaging relationship is established, the object, image and lens are determined. Even if the light incident on the fly-eye lens group is deflected, it will not affect the surface of the wavelength conversion device. The position and uniformity of the light spot will affect (only the light distribution of the beam before or after the imaging position).
  • the number of relay lenses of the light-emitting device may be one or more, which is not limited in the present invention.
  • the light guide of the present invention can be any optical component that can achieve optical transmission, reflection, convergence or divergence. Specifically, it can be a flat mirror that achieves a reflection effect, or a convex mirror that achieves a reflection and diffusion effect, or Concave mirrors that realize the reflection and convergence effect, or regional diaphragms, dichroic plates or filters that realize partial wavelength light transmission and reflection of wavelength light. Further, the light guide is not limited to the above-mentioned optical components. In an embodiment, the optical guide may also be composed of multiple optical components.
  • the light guide of the present invention is mainly described as an embodiment of a curved mirror. As shown in FIG. 3, it can be understood that the light guide can be one of a flat mirror or a curved mirror; wherein the flat mirror is used to The first wavelength light is reflected and the second wavelength light is transmitted, and the plane mirror does not change the divergence angle of the incident light beam of the first wavelength.
  • the light guide can change the angular distribution of the light beam of the first wavelength.
  • the light guide when the light guide is a convex mirror, the light guide includes a convex reflective surface.
  • the reflecting surface faces the light of the first wavelength, reflects the light of the first wavelength, changes the angular distribution of the beam, and diverges the beam.
  • the light guide not only allows the light of the first wavelength to be transmitted to the outgoing optical channel with the photosynthesized light of the second wavelength through reflection, but also diverges the light beam by changing the angular distribution of the light of the first wavelength.
  • the convex reflective surface of the light guide is a structure in which a metal reflective film is plated on a convex structure.
  • the function of a curved mirror is realized by the combination of two optical components, the plane mirror is used to change the direction of the first wavelength light, and the lens is used to change the angular distribution of the first wavelength light.
  • the convex mirror is replaced by a combination of a flat mirror and a concave lens, so that the first wavelength light can pass through the concave lens first and then enter the flat mirror, or the first excitation light can be first by the flat mirror. Reflected and then transmitted through the concave lens.
  • the light guide When the light guide is a concave mirror, the light guide includes a concave reflective surface that faces the first wavelength light, reflects the first wavelength light, changes the beam angle distribution, and converges the beam. At this time, the light guide not only enables the first wavelength light to be transmitted with the second wavelength photosynthesized light to the outgoing light channel through reflection, but also functions to converge the light beam by changing the beam angle distribution of the first wavelength light.
  • the concave reflective surface of the light guide is a structure in which a metal reflective film is plated on a concave structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
  • the function of the curved mirror is realized by the combination of two optical components, the plane mirror is used to change the direction of the first excitation light, and the lens is used to change the angular distribution of the first wavelength light.
  • the first wavelength light can first pass through the convex lens and then enter the flat reflective surface, or the first wavelength light can be first reflected by the flat mirror and then transmitted through the convex lens .
  • Fig. 4 shows a schematic structural diagram of a wavelength conversion device in an embodiment.
  • the wavelength conversion device includes a substrate and a wavelength conversion material layer.
  • a reflective layer may also be included between the substrate and the wavelength conversion material layer, and the reflective layer may be a polished surface of the substrate, a white reflective layer or a silver-containing composite layer.
  • the reflective layer is the polished surface of the substrate, the cost of the wavelength conversion device is lower and the structure is simpler; when the reflective layer is a white reflective layer, the light reflection efficiency is higher and the cost is low; when the reflective layer contains In the case of the silver composite layer, due to the good thermal conductivity, the efficiency is higher when the wavelength conversion material layer is excited.
  • the substrate is a roulette structure (fluorescent color wheel), including a wavelength conversion section 1101 and a non-wavelength conversion section 1102.
  • the wavelength conversion section 1101 and the non-wavelength conversion section 1102 are fan or/and on the roulette structure.
  • the circular splicing arrangement is driven by a driving device (such as a motor) to rotate around the central axis of the wheel.
  • the wavelength conversion device 11 rotates periodically so that the wavelength conversion section 1101 and the non-wavelength conversion section 1102 are time-sharingly located on the optical path of the first excitation light, and the non-wavelength conversion section 1102 reflects the first excitation light to obtain the first wavelength light,
  • the wavelength conversion section 1101 is excited by the first excitation light to generate second wavelength light.
  • the wavelength conversion device may also be a fluorescent color barrel/color barrel, which includes a wavelength conversion section and a non-wavelength conversion section distributed around the barrel/tube surface, and the color barrel/color barrel rotates around its axis. , So that different sections are periodically irradiated by the first excitation light in time sequence; or, the wavelength conversion device may also be a fluorescent color plate, including wavelength conversion sections and non-wavelength conversion sections arranged in a straight line. , The color plate linearly vibrates along the linear direction, so that different sections are periodically irradiated by the first excitation light in a time sequence, so that the first wavelength light and the second wavelength light are emitted in time sequence.
  • the wavelength conversion section 1101 may be a section containing only one wavelength conversion material. For example, it may include a yellow light wavelength conversion section, a green light wavelength conversion section or a red light wavelength conversion section. kind of. In an embodiment, the wavelength conversion section 1101 may also be a section containing two wavelength conversion materials. For example, it may include a yellow light wavelength conversion section, a green light wavelength conversion section or a red light wavelength conversion section. It can be understood that the wavelength conversion section 1101 is selected according to the specific light-emitting device, and the present invention does not limit this, and specifically includes one, two or more The color light wavelength conversion sections are all within the protection scope of the present invention.
  • the wavelength conversion section of the wavelength conversion device 11 includes a fluorescent material layer, which can be either a fluorescent powder-organic adhesive layer (the separated fluorescent powder is bonded into a layer by an organic adhesive such as silica gel, epoxy resin, etc.) ), it can also be a phosphor-inorganic adhesive layer (the separated phosphor is bonded into a layer by an inorganic adhesive such as glass), or it can be a fluorescent ceramic (including 1 using continuous ceramic as a matrix and distributed in the ceramic The structure of the phosphor particles; 2Pure phase ceramic doped with activator elements, such as Ce-doped YAG ceramic; 3On the basis of pure phase ceramic doped with activator elements, phosphor particles are dispersed in the ceramic).
  • a fluorescent material layer which can be either a fluorescent powder-organic adhesive layer (the separated fluorescent powder is bonded into a layer by an organic adhesive such as silica gel, epoxy resin, etc.) ), it can also be a phosphor-inorganic adhesive layer (the separated phosphor
  • the wavelength conversion section includes a quantum dot layer, and the photoluminescence function is realized by the quantum dot material.
  • the wavelength conversion device 206 may have only one wavelength conversion section (such as a yellow wavelength conversion section), or may have two wavelength conversion sections (such as a green wavelength conversion section and a red wavelength conversion section), or may include more than two wavelength conversion sections. Wavelength conversion section.
  • the non-wavelength conversion section 1102 is used to reflect the incident first excitation light to obtain the first wavelength light.
  • the non-wavelength conversion section may be a circular section or a fan-shaped section. The shape is selected based on the specific light path design of the light-emitting device, and will not be described here.
  • the first excitation light is blue light
  • the non-wavelength conversion zone can reflect blue light.
  • the non-wavelength conversion zone 1102 can be a metal reflective layer that achieves specular reflection; it can also be an inorganic or organic scattering Diffuse reflection layer; it can also be a medium film layer that reflects blue light, specifically it can be an optical film layer such as a filter that reflects blue light, a dichroic mirror, etc.; in short, the present invention does not limit this, and all can achieve blue light reflection
  • the present invention does not limit this, and all can achieve blue light reflection
  • the materials or structures of are all within the protection scope of the present invention.
  • the wavelength conversion device 11 may include multiple sets of wavelength conversion areas and non-wavelength conversion areas.
  • the substrate includes a wavelength conversion area, a non-wavelength conversion area, a wavelength conversion area, and a non-wavelength conversion area in sequence.
  • the substrate is: a circular plate composed of thermally conductive materials such as metal or alloy, or a circular plate composed of a sector composed of thermally conductive materials such as metal or alloy and a sector that carries the non-wavelength conversion zone, or composed of thermally conductive materials such as metal or alloy
  • Figure 5 shows a schematic structural diagram of the filter in an embodiment.
  • the filter is not an essential element of the light-emitting device of the present invention. Adding the filter can further improve the purity of the emitted light, thereby improving the color. However, when the quality of the light emitted by a laser light source and wavelength conversion device is good, no filter is required;
  • the filter 22 is a filter wheel with a disc structure, and includes a color correction transmission section 2201 and a scattering transmission section 2202.
  • the color correction transmission section 2201 is circular or fan-shaped.
  • the scattering transmission section 2202 is shown in the figure 2
  • the non-wavelength conversion section of the wavelength conversion device matches the circular or fan-shaped distribution;
  • the scattering transmission section 2202 is used to scatter and transmit the first wavelength light, so that the divergence angle of the first wavelength light and the divergence of the second wavelength light Angle matching;
  • the color correction transmission section 2201 is used for color correction of the second wavelength light, so that the color coordinates of the transmitted second wavelength light meets the emission light requirements of the light emitting device, and the color correction transmission section can be set by setting the wavelength filter Film to achieve.
  • the color correction transmission section 2201 may be a section including only one wavelength filter, for example, it may be a section including a yellow wavelength filter, a green wavelength filter, or a red wavelength filter. One of the segments of the light sheet.
  • the color correction transmission section 2201 may also be a section including two wavelength filters. For example, it may be a section including a yellow wavelength filter and a green wavelength filter. Segment or any two segments in the red wavelength filter, the two wavelength filter segments are spliced into a color correction transmission section; it is understandable that the color correction transmission section 2201 is based on specific
  • the choice of the light-emitting device is not limited by the present invention, and specifically including one, two or more than two wavelength filters are within the protection scope of the present invention.
  • the filter element 22 is driven by a driving device (such as a motor) to rotate periodically, so that the filter element 22 is synchronized with the wavelength conversion device 11, so that each section of the filter element 22 and each section of the wavelength conversion device 11 One to one correspondence.
  • the filter wheel in the light emitting device can be replaced with a scattering element.
  • the scattering element is used to scatter the light of the first wavelength, so that the divergence angle when the light of the first wavelength enters the homogenizing element is consistent with the divergence angle of the light of the second wavelength entering the homogenizing element.
  • the scattering element is used to scatter the light of the first wavelength, so that the divergence angle when the light of the first wavelength enters an exit light channel and the divergence angle when the light of the second wavelength enters the exit light channel be consistent.
  • the scattering element may be arranged on the optical channel through which the light of the first wavelength and the light of the second wavelength pass together, and the scattering element is periodically moved to scatter the light of the first wavelength but not to scatter the light of the second wavelength.
  • the light of the first wavelength and the light of the second wavelength are time-divisionally condensed at a position before the light exit channel; the scattering element periodically moves, so that the wavelength conversion device moves to the converging position when the first wavelength light is emitted, and the wavelength conversion device emits The second wavelength light leaves the converging position.
  • wavelength conversion device and the filter wheel are independent of each other, and are driven by two driving devices to perform periodic movement.
  • the wavelength conversion device and the filter wheel are coaxially arranged, and are driven by the driving device to rotate around the same rotation axis.
  • the non-wavelength conversion section and the wavelength conversion section of the wavelength conversion device are combined to form a first ring
  • the scattering transmission section and color correction transmission section of the filter wheel are combined to form a second ring, the center of the first ring
  • the centers of the second ring and the second ring are located on the axis of rotation
  • the non-wavelength conversion section and the scattering transmission section are arranged in two opposite sectors with the same central angle
  • the wavelength conversion section And the color correction transmission section are arranged in two sectors with the same and opposite central angle
  • the light spot projected by the first excitation light onto the wavelength conversion device is different from the first wavelength light and the second wavelength light
  • the light spot projected on the filter wheel can be penetrated by the same plane passing through the rotation axis.
  • the light incident surface of the wavelength conversion device and the light incident surface of the filter wheel are located on the same plane. In another embodiment, the light incident surface of the wavelength conversion device and the light incident surface of the filter wheel are located on another plane.
  • FIG. 6 shows a structural schematic diagram of the wavelength conversion device 11 and the filter wheel 22 coaxially arranged in an embodiment.
  • the wavelength conversion device 11 includes a non-wavelength conversion section 1102, a wavelength conversion section 1101, and the filter wheel includes a scattering transmission section 2202, a color correction transmission section 2201.
  • the central angle of the sector where the non-wavelength conversion section 1102 is located is opposite to the central angle of the sector where the scattering transmission section 2202 is located and has the same size.
  • the central angle of the sector in which the wavelength conversion section 1101 is located and the central angle of the color correction transmission section 2201 are opposite and have the same size.
  • the light-emitting device may further include an optical axis correction element, and the first wavelength light and the second wavelength light can change the propagation direction of the light beam by the interaction of the light guide and the optical axis correction element, so that the main light of the first wavelength light
  • the axis coincides with the main optical axis of the second wavelength light.
  • the light guide reflects or transmits the light of the first wavelength, so that the direction of the main optical axis of the light of the first wavelength changes accordingly.
  • the optical axis correction element can be arranged on the optical channel through which the first wavelength light and the second wavelength light pass together.
  • the optical axis correction element can be a static optical element or a periodically moving optical element.
  • the optical axis correction The element periodically moves to change the main optical axis direction of the first wavelength light but not to change the main optical axis direction of the second wavelength light.
  • the light of the first wavelength and the light of the second wavelength are time-divisionally condensed at a position before a light exit channel; the optical axis correction element periodically moves, so that the wavelength conversion device moves to the convergent when the light of the first wavelength is emitted. And make the wavelength conversion device leave the converging position when emitting the second wavelength light.
  • FIG. 7 shows a schematic diagram of the structure of the optical axis correction element 701.
  • the optical axis correction element 701 includes a first surface 702 and a second surface 703.
  • a microstructure 7021 is provided on the first surface 702, and the microstructure 7021 changes the traveling direction of the light beam incident thereon, and causes the light beam to exit from the second surface 703.
  • the second surface 702 of the optical axis correction element can be superimposed and fixed with the scattering element or the transmission scattering section of the filter wheel.
  • a light emitting device includes a first light source 201, a light guide 204, wherein the light guide includes a first light guide 204a and a second light guide 204b, and a collection lens 205 , Wavelength conversion device 206, first relay lens 207. among them:
  • the first light source 201 emits the first excitation light, the first excitation light is transmitted through the first light guide 204a, is incident on the collection lens 205, is collected by the collection lens 205, and is transmitted to the wavelength conversion device 206.
  • the first light source 201 may be a blue laser or a blue laser array; the first excitation light is a blue laser.
  • the first light source 201 may be a blue LED, and the first excitation light is blue LED light. The present invention does not limit this.
  • a homogenization device 202 is provided between the first light source 201 and the light guide 204. As shown in FIG. 8B, the first excitation light emitted by the first light source 201 is homogenized by the homogenization device 202. The light is transmitted through the first light guide 204a and is incident on the collecting lens 205.
  • the wavelength conversion device 206 includes a non-wavelength conversion section and a wavelength conversion section.
  • the wavelength conversion device 206 periodically moves so that the non-wavelength conversion section and the wavelength conversion section are time-shared on the optical path of the first excitation light.
  • the non-wavelength conversion section reflects the first excitation light to obtain the first wavelength light.
  • the wavelength conversion section is excited by the first excitation light to generate the second wavelength light. After the first wavelength light is reflected by the non-wavelength conversion section, it is collected by the collecting lens 205 and transmitted to the second light guide 204b, and the second light guide 204b reflects the first wavelength light to the first relay lens 207. After the second wavelength light is generated, it is collected by the collecting lens 206 and transmitted to the first light guide 204a.
  • the second light guide 204b has a characteristic of transmitting light of the second wavelength, and the transmission of the light of the second wavelength is not affected by the second light guide 204b.
  • the first light guide 204a reflects the second wavelength light to the first relay lens 207.
  • the first relay lens 207 collects the first wavelength light and the second wavelength light in time sharing, and transmits the first wavelength light and the second wavelength light to the subsequent optical system in time sharing.
  • the main optical axis of the light of the first wavelength after being reflected by the second light guide 204b coincides with the main optical axis of the light of the second wavelength.
  • the main optical axis of the light beam can be understood as the central axis of the light beam, and the direction of the main optical axis is the direction in which the light beam advances.
  • the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength, which can be understood as not overlapping in an absolute sense but substantially overlapping.
  • the technical solution that makes the main optical axis of the first wavelength light parallel to the main optical axis of the second wavelength light and smaller than the threshold also belongs to the protection of the present invention. Range.
  • the second light guide 204b is located on the optical path of the light of the second wavelength reflected by the first light guide 204a, and the main optical axis of the light of the first wavelength received by the second light guide 204b and the first light
  • the main optical axis of the second wavelength light reflected by the guide 204a converges on the reflective surface of the second light guide 204b, and the second light guide 204b reflects the first wavelength light it receives along the first light guide 204a.
  • the light of the second wavelength is reflected in the direction of the main optical axis, so that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
  • the main optical axis of the first wavelength light and the main optical axis of the second wavelength light converge on the reflecting surface of the second light guide 204b, which may be understood as the main optical axis of the first wavelength light incident on the second light guide
  • the distance between the incident point of the reflecting surface of the element 204b and the incident point of the second wavelength light incident on the reflecting surface of the second light guide 204b is relatively close, for example, the distance between the two is smaller than the threshold.
  • the area of the reflection surface of the second light guide 204b satisfies the following condition: it is large enough to enable the reflection surface of the second light guide 204b to be at a designated position (ie: the main optical axis of the first wavelength light received by the second light guide 204b
  • the position where the main optical axis of the second wavelength light reflected by the first light guide 204a is converged receives and reflects the entire beam of light of the first wavelength, while the reflective surface of the second light guide 204b does not affect the incidence of the first excitation light Collection lens 205.
  • the size of the reflective surface area of the second light guide 204b can be adapted to the size of the spot on which the received light of the first wavelength is projected, that is, the size of the light spot on which the received light of the first wavelength is projected onto it.
  • the light spot matches with, for example, the area of the light spot onto which the received light of the first wavelength is projected, so that the entire beam of light of the first wavelength can be reflected.
  • the volume of the light-emitting device can be further reduced by setting the reflective color wheel, and the light guide is used to adjust the main optical axis of the first wavelength light to coincide with the main optical axis of the second wavelength light, so that the light-emitting device emits light.
  • the light uniformity is better.
  • the light emitting device of this embodiment further includes a filter wheel 211 and a light homogenizing element 212.
  • the first relay lens 207 collects the first wavelength light and the second wavelength light and enters the filter wheel 211 to filter
  • the light wheel 211 includes a scattering transmission section and a color correction transmission section.
  • the scattering transmission section is used to scatter the first wavelength light so that the divergence angle of the first wavelength light is consistent with the divergence angle of the second wavelength light.
  • the transmission section is used to transmit the second wavelength light;
  • the filter wheel 211 rotates periodically, so that when the wavelength conversion device 206 emits the first wavelength light, the scattering transmission section is located on the optical path of the first wavelength light, and the wavelength conversion device 206 emits the second wavelength light when the color correction transmission section is Located on the optical path of the second wavelength light.
  • the first wavelength light and the second wavelength light are imaged on the incident surface of the light homogenizing element 212 according to a predetermined spot size.
  • the light homogenizing element 212 forms an exit light channel.
  • the homogenizing element 212 is used to homogenize the light of the first wavelength and the light of the second wavelength.
  • the second light guide 204b may be one of a flat mirror or a curved mirror, as shown in FIG. 3. It is understood that the second light guide 204b may also be a combination of a flat mirror or a curved mirror ;
  • the plane mirror is used to reflect the incident first wavelength light and transmit the second wavelength light. The plane mirror will not change the divergence angle of the incident first wavelength light beam.
  • the plane mirror can be a filter/filter film/ One of the dichroic films.
  • the second light guide 204b can change the angular distribution of the light beam of the first wavelength.
  • the second light guide 204b is a convex mirror
  • the The two light guides 204b include a convex reflective surface, which faces the first wavelength light, reflects the first wavelength light, changes the beam angle distribution, and diverges the beam.
  • the second light guide 204b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to diverge the light beam by changing the angular distribution of the light of the first wavelength.
  • the convex reflective surface of the second light guide 204b is a structure in which a metal reflective film is plated on a convex structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
  • the second light guide 204b When the second light guide 204b is a concave mirror, the second light guide 204b includes a concave reflective surface facing the first wavelength light, reflecting the first wavelength light, and changing the beam angle distribution. Converge the beam. At this time, the second light guide 204b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to converge the light by changing the angular distribution of the light of the first wavelength.
  • the concave reflective surface of the second light guide 204b is a structure in which a metal reflective film is plated on a concave structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
  • this embodiment may further include a second light source 203.
  • the second light source 203 is used to emit compensation light when the wavelength conversion section of the wavelength conversion device 206 is located on the optical path of the first excitation light. It can be understood that the second light source is not used as the main element of this embodiment, and the second light source may not be provided when the light-emitting device has good optical characteristics such as color gamut and brightness.
  • the first light guide 204a has regional characteristics for the penetrating characteristics of the compensation light, and includes a penetrating area capable of transmitting the compensation light, and other areas other than the area have the property of reflecting the compensation light. The area of the transparent area and the other area can be set according to a predetermined ratio.
  • the area of the transparent area can be set to be smaller than the area of the other areas.
  • the compensation light is transmitted through the transparent region and then enters the collection lens 205, is collected by the collection lens 205 and then transmitted to the wavelength conversion device 206.
  • the wavelength conversion section is provided with a wavelength conversion material to receive the first excitation light to generate the second wavelength light, and the wavelength conversion material has a scattering effect on the compensation light. After being scattered, the compensation light is transmitted along the same optical path as the second wavelength light and enters the homogenizing element 212.
  • the optical processing of each optical element for the compensation light is the same as the optical processing for the second wavelength light; for example, the color correction transmission section of the filter wheel 211 also has a transmission function for the compensation light.
  • the main optical axis of the compensation light emitted from the wavelength conversion device 206 coincides with the main optical axis of the second wavelength light emitted from the wavelength conversion device 206.
  • the compensation light may have an overlapping wavelength range with the second wavelength light.
  • the wavelength range of the compensation light is (a, b), and the wavelength range of the second wavelength light is (c, d), where c ⁇ b ⁇ d.
  • the color of the compensation light may be the same or similar to the second wavelength light.
  • the compensation light may be used to compensate for at least one of the hue and brightness of the second wavelength light.
  • the second light source 203 for emitting the compensation light may also be omitted, which is not limited in the present invention. If the second light source 203 for emitting compensation light is omitted, the first light guide 204a may not include the aforementioned transparent region.
  • the optical extension of the first excitation light is smaller than the optical extension of the second wavelength light.
  • a light emitting device includes a first light source 201, a light guide 204, wherein the light guide includes a first light guide 204a and a second light guide 204b, and a collection lens 205 , Wavelength conversion device 206, first relay lens 207.
  • the difference from the embodiment shown in FIGS. 8A-8D is that the first excitation light is collected by the collecting lens 205, transmitted through the first light guide 204a, and further enters the second light guide 204b, and passes through the second light guide 204b. After the light guide 204b is reflected, it is transmitted to the first relay lens 207.
  • the second light guide 204b is located on the reverse extension path of the light path of the second wavelength light reflected by the first light guide 204a, and the main optical axis of the first wavelength light received by the second light guide 204b is the same as the first
  • the reverse extension of the main optical axis of the second wavelength light reflected by the light guide 204b converges on the reflective surface of the second light guide 204b, and the second light guide 204b moves the light of the first wavelength it receives along the first
  • the light of the second wavelength reflected by the light guide 204b is reflected in the direction of the main optical axis, so that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
  • the main optical axis of the first wavelength light and the main optical axis of the second wavelength light are converged on the reflective surface of the second light-emitting guide 204b.
  • This can be understood as the main optical axis of the first wavelength light incident on
  • the distance between the point of incidence of the reflection surface of the second light guide 204b and the extension of the main optical axis of the second wavelength light and the intersection of the reflection surface of the second light guide 204b is relatively close, for example, between the two The distance is less than the threshold.
  • optical elements and the transmission and optical processing of the light beams that are not described in this embodiment can refer to the first part of the embodiment, that is, the optical elements of the first part of the embodiment that are not described can be applied in this embodiment. This will not be repeated here.
  • a light emitting device includes a first light source 201, a second light source 203, a compensation light guide 204c, a collecting lens 205, a wavelength conversion device 206, a first relay lens 207, Excitation light guide 209c1, excitation light guide 209c2, excitation light guide 209c3.
  • the first excitation light is reflected to the collection lens 205 by the excitation light guide 209c1.
  • the excitation light guide 209c1, the excitation light guide 209c2, and the excitation light guide 209c3 do not affect the transmission of the second wavelength light.
  • the excitation light guide 209c1, the excitation light guide 209c2, and the excitation light guide 209c3 all have the characteristic of transmitting light of the second wavelength.
  • the compensation light guide 204c has the characteristic of reflecting compensation light. When the compensation light and the second wavelength light have overlapping wavelength ranges, the compensation light guide 204c will reflect a part of the second wavelength light, and this part of the second wavelength light will therefore be Lost.
  • the first wavelength light is emitted from the collecting lens 205 and reflected by the excitation light guide 209c2 to the excitation light guide 209c3; the excitation light guide 209c3 is located on the optical path of the second wavelength light, and the first wavelength light received by the excitation light guide 209c3
  • the main optical axis of the light and the main optical axis of the second wavelength light converge on the reflective surface of the excitation light guide 209c3, and the excitation light guide 209c3 reflects the light of the first wavelength it receives along the direction of the main optical axis of the second wavelength light , So that the main optical axis of the first wavelength light coincides with the main optical axis of the second wavelength light.
  • the compensation light guide 204c does not affect the transmission of the first wavelength light, and has the characteristic of transmitting the first wavelength light.
  • the reflective surface area of the excitation light guide 209c1 satisfies the following conditions: it is large enough so that the reflective surface of the excitation light guide 209c1 can receive and reflect the entire beam of light of the first wavelength at a designated position, while the reflective surface of the excitation light guide 209c1 does not affect The light of the first wavelength is incident on the first relay lens 207.
  • the size of the reflective surface area of the excitation light guide 209c1 can be adapted to the size of the spot on which the received first wavelength light is projected, that is, the size of the spot on which the received first wavelength light is projected. The light spots are matched, so that the entire beam of light of the first wavelength can be reflected.
  • the excitation light guide 209c2 does not affect the transmission of the first wavelength light emitted from the excitation light guide 209c3 to the second relay lens 207, and does not affect the transmission of the first wavelength light to the excitation light guide 209c1.
  • the excitation light guide 209c3 does not affect the transmission of the first wavelength light emitted from the collection lens 205 to the excitation light guide 209c2, and does not affect the transmission of the first wavelength light to the excitation light guide 209c1.
  • the compensation light emitted by the second light source 203 is collected by the collection lens 205 after being reflected by the compensation light guide 204c.
  • the excitation light guide 209c1, the excitation light guide 209c2, and the excitation light guide 209c3 do not affect the transmission of compensation light.
  • the excitation light guide 209c1, the excitation light guide 209c2, and the excitation light guide 209c3 all have the characteristic of transmitting compensation light.
  • the compensation light guide 204c can be omitted accordingly.
  • the compensation light guide 204c and the excitation light guide 209c1 can be replaced by a whole area beam splitter, which includes a first area and a second area; the first area is responsible for the compensation light guide 204c The function has the same optical characteristics as the compensation light guide 204c; the second area assumes the function of the excitation light guide 209c1, and has the same optical characteristics as the excitation light guide 209c1.
  • the regional beam splitter may further include a third area connecting the first area and the second area, and the third area can transmit light of the second wavelength.
  • the compensation light guide 204c, the excitation light guide 209c1, the excitation light guide 209c2, or the excitation light guide 209c3 may be one of a flat mirror or a curved mirror, as shown in FIG. 8B, but in this embodiment Each light guide is not limited to using a single flat mirror or curved mirror, and it can also be a combination of flat mirrors or curved mirrors. The specific optical effects of the flat mirror and the curved mirror can refer to this embodiment and the first part of the embodiment.
  • optical elements and the transmission and optical processing of the light beams that are not described in this embodiment can refer to the first part of the embodiment, that is, the optical elements of the first part of the embodiment that are not described can be applied in this embodiment. This will not be repeated here.
  • a light emitting device includes a first light source 201, a second light source 203, a compensation light guide 204c, a collecting lens 205, a wavelength conversion device 206, a first relay lens 207, Excitation light guide 209d1, excitation light guide 209d2, excitation light guide 209d3.
  • the first excitation light is reflected to the collection lens 205 by the excitation light guide 209d1.
  • the first wavelength light is emitted from the collection lens 205 and reflected by the excitation light guide 209d2 to the excitation light guide 209d3; the excitation light guide 209d3 is located on the optical path of the second wavelength light, and the first wavelength light received by the excitation light guide 209d3
  • the main optical axis of the main optical axis and the main optical axis of the second wavelength light converge on the reflective surface of the excitation light guide 209d3, and the excitation light guide 209d3 reflects the first wavelength light it receives along the main optical axis direction of the second wavelength light , So that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
  • the excitation light guide 209d1, the excitation light guide 209d2, and the excitation light guide 209d3 do not affect the transmission of the second wavelength light and the compensation light.
  • the excitation light guide 209d1, the excitation light guide 209d2, and the excitation light guide 209d3 all have the characteristics of transmitting the second wavelength light and the compensation light.
  • the incident position of the second light source 203 shown in FIG. 7 can be moved down, and the excitation light guide 209d1, compensation light guide 204c, and excitation light guide 209d2 are located on the same plane.
  • the excitation light guide 209d1, compensation light guide 204c, and excitation light guide 209d2 located on the same plane can be replaced by a whole area beam splitter;
  • the area beam splitter includes a first area, a second area, and The third area;
  • the first area assumes the function of the excitation light guide 209d1 and has the same optical characteristics as the excitation light guide 209d1;
  • the second area assumes the function of the compensation light guide 204c, and has the same function as the compensation light guide 204c
  • the third area assumes the function of the excitation light guide 209d2 and has the same optical properties as the excitation light guide 209d2.
  • the area beam splitter may further include a fourth area connecting the first area, the second area, and the third area, and the fourth area
  • the compensation light guide 204c, the excitation light guide 209d1, the excitation light guide 209d2, or the excitation light guide 209d3 can be one of a flat mirror or a curved mirror, but the light guides in this embodiment are not It is limited to using a single flat mirror or curved mirror, and it can also be a combination of flat mirrors or curved mirrors. The specific optical effects of the flat mirror and the curved mirror can refer to this embodiment and the first part of the embodiment.
  • optical elements and the transmission and optical processing of the light beams that are not described in this embodiment can refer to the third part of the embodiment, that is, the optical elements of the third part of the embodiment that are not described can be applied in this embodiment. I won't repeat them here.
  • the first excitation light is incident on the collection lens 205 along the non-central axis direction of the collection lens 205, and the collection lens 205 deflects the main optical axis of the first excitation light and transfers the first excitation light Transmitted to the wavelength conversion device 206.
  • the light of the first wavelength is emitted from the wavelength conversion device 206 and then transmitted to the collecting lens 205, which deflects the main optical axis of the light of the first wavelength.
  • the direction of the first excitation light incident on the collection lens 205 is not parallel to the central axis direction of the collection lens 205, the focal point of the collection lens 205 is located on the reflection surface of the non-wavelength conversion section of the wavelength conversion device 206 and the central axis of the collection lens 205 is vertical On the reflective surface.
  • the main optical axis of the first excitation light enters the optical path of the wavelength conversion device through the transmission of the collection lens 205 and the main optical axis of the first wavelength light is collected via the collection lens 205.
  • the reflected light path from the wavelength conversion device is about the central axis of the collection lens 205 symmetry.
  • the present invention should not be limited by this.
  • the direction of the first excitation light incident on the collection lens 205 and the central axis of the collection lens 205 may not be parallel, and the focus of the collection lens 205 may not be located at the non-wavelength of the wavelength conversion device 206.
  • the reflective surface of the conversion section may not be parallel, and the focus of the collection lens 205 may not be located at the non-wavelength of the wavelength conversion device 206.
  • the compensation light emitted by the second light source 203 enters the collection lens 205 along the central axis of the collection lens 205, and is incident to the wavelength conversion device 206 in this direction, and interacts with the first excitation light. Converged in the wavelength conversion device 206. After the compensation light is scattered by the wavelength conversion material provided on the wavelength conversion section of the wavelength conversion device 206, it is emitted in the form of Lambertian light; and the second wavelength light is also emitted in the form of Lambertian light. The main optical axis of the second wavelength light coincides with the main optical axis of the scattered compensation light.
  • the compensation light emitted by the second light source 203 may be incident on the collection lens 205 along the non-central axis direction of the collection lens 205; the present invention is not limited to this.
  • optical elements and the transmission and optical processing of the optical components not described in this embodiment can refer to the first part of the embodiment, the second part of the embodiment, the third part of the embodiment, and the fourth part of the embodiment, that is, the undescribed
  • the optical elements of the first part of the embodiment, the second part of the embodiment, the third part of the embodiment, and the fourth part of the embodiment can all be applied in this embodiment, and will not be repeated here.
  • a light emitting device includes a first light source 201, a second light source 203, and a light guide 204, wherein the light guide 204 includes a first light guide 204a and a second light guide The component 204b, the collection lens 205, the wavelength conversion device 206, the first relay lens 307, the reflective element 308, and the second relay lens 310.
  • the first relay lens 307 transmits the collected first wavelength light and second wavelength light to the reflective element 308, and the reflective element 308 further transmits the first wavelength light and the second wavelength light.
  • the second relay lens 310 collects the first wavelength light and the second wavelength light.
  • the reflective element 308 reflects the light of the first wavelength and the light of the second wavelength.
  • the reflective element 308 is an optical element with a light reflection function, such as a mirror.
  • the reflective element 308 is equivalent to a first light guide and a second light guide superimposed, the second light guide has the characteristic of reflecting light of the first wavelength, and the first light guide has a reflective The characteristics of second wavelength light and transmission of first wavelength light.
  • the reflective element 308 can also be equivalent to a second light guide and a first light guide superimposed, the second light guide has the characteristics of reflecting the first wavelength light and transmitting the second wavelength light, the first The light guide has the characteristic of reflecting light of the second wavelength.
  • the area of the reflective surface of the first light guide can be equivalent to the area of the reflective surface of the reflective element 308.
  • the reflective surface area of the second light guide can be smaller than the reflective surface area of the reflective element 308, and can also be adapted to the size of the incident spot of the first wavelength light it receives, so as to be able to receive and reflect the entire first wavelength. Light.
  • the optical extension of the first wavelength light is smaller than the optical extension of the second wavelength light; the reflective surface area of the second light guide is smaller than the reflective surface area of the first light guide.
  • the second light guide 204b can be a flat mirror or a curved mirror. It is understood that the second light guide 204b can also be a combination of a flat mirror or a curved mirror; To reflect the incident light of the first wavelength and transmit the light of the second wavelength, the plane mirror will not change the divergence angle of the incident light beam of the first wavelength.
  • the plane mirror can be a filter/filter film/dichroic One kind.
  • the second light guide 204b can change the angular distribution of the light beam of the first wavelength.
  • the second light guide 204b is a convex mirror
  • the The two light guides 204b include a convex reflective surface, which faces the first wavelength light, reflects the first wavelength light, changes the beam angle distribution, and diverges the beam.
  • the second light guide 204b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to diverge the light beam by changing the angular distribution of the light of the first wavelength.
  • the convex reflective surface of the second light guide 204b is a structure in which a metal reflective film is plated on a convex structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
  • the second light guide 204b When the second light guide 204b is a concave mirror, the second light guide 204b includes a concave reflective surface facing the first wavelength light, reflecting the first wavelength light, and changing the beam angle distribution. Converge the beam. At this time, the second light guide 204b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to converge the light by changing the angular distribution of the light of the first wavelength.
  • the concave reflective surface of the second light guide 204b is a structure in which a metal reflective film is plated on a concave structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
  • a second light source 203 is further included, and the second light source 203 is configured to emit compensation light when the wavelength conversion section of the wavelength conversion device 206 is located on the optical path of the first excitation light.
  • the first light guide 204a has regional characteristics for the penetrating characteristics of the compensation light, and includes a penetrating area capable of transmitting the compensation light, and other areas other than the area have the property of reflecting the compensation light.
  • the area of the transparent area and the other area can be set according to a predetermined ratio. In one embodiment, the area of the transparent area can be set to be smaller than the area of the other areas.
  • the compensation light is transmitted through the transparent region and then enters the collection lens 205, is collected by the collection lens 205 and then transmitted to the wavelength conversion device 206.
  • the wavelength conversion section is provided with a wavelength conversion material to receive the first excitation light to generate the second wavelength light, and the wavelength conversion material has a scattering effect on the compensation light.
  • the compensation light is scattered and transmitted along the same optical path as the second wavelength light.
  • the optical processing of each optical element for the compensation light is the same as the optical processing for the second wavelength light; the main optical axis of the compensation light after the wavelength conversion device 206 is emitted and the second wavelength light after the wavelength conversion device 206 is emitted The main optical axis coincides.
  • the compensation light may have an overlapping wavelength range with the second wavelength light.
  • the wavelength range of the compensation light is (a, b), and the wavelength range of the second wavelength light is (c, d), where c ⁇ b ⁇ d.
  • the color of the compensation light may be the same or similar to the second wavelength light.
  • the compensation light may be used to compensate for at least one of the hue and brightness of the second wavelength light.
  • the second light source 203 for emitting the compensation light may also be omitted, which is not limited in the present invention. If the second light source 203 for emitting compensation light is omitted, the first light guide 204a may not include the aforementioned transparent region.
  • the optical extension of the first wavelength light is smaller than the optical extension of the second wavelength light.
  • a light emitting device includes a first light source 201, a second light source 203, a regional beam splitter 404a, a collection lens 205, a wavelength conversion device 206, a first relay lens 307, and a second light source 203.
  • the regional light splitting sheet 404a includes a first area 404a1, a transparent area 404a2, a third area 404a3, and a fourth area 404a4.
  • the first region 404a1 has the characteristics of transmitting the first excitation light, reflecting the second wavelength light and compensating light.
  • the transparent area 404a2 has the characteristic of transmitting compensation light.
  • the transparent area 404a2 also transmits light in the overlapping wavelength range of the second wavelength light; the invention is not limited
  • the transparent and complementary area 404a2 has the penetrating characteristics of the light outside the overlapping wavelength range in the second wavelength light; preferably, the transparent and complementary area 404a2 can reflect the light outside the overlapping wavelength range in the second wavelength light.
  • the third area 404a3 has characteristics of reflecting light of the first wavelength, light of the second wavelength, and compensation light.
  • the fourth area 404a4 has characteristics of reflecting the second wavelength light and compensating light. The present invention does not limit the penetration characteristics of the fourth region 404a4 to the first wavelength light.
  • the fourth area 404a4 When the fourth area 404a4 has a transmission characteristic for the first wavelength light, it can be merged with the first area 404a1 into one area; when the fourth area 404a4 has a reflection characteristic for the first wavelength light, it can be merged with the third area 404a3 into one area.
  • the reflective surface area of the third region 404a3 satisfies the following conditions: it is large enough so that the reflective surface of the third region 404a3 can receive and reflect the entire beam of light of the first wavelength, while the reflective surface of the third region 404a3 does not affect the incidence of light of the first wavelength. Collection lens 205.
  • the size of the reflective surface area of the third region 404a3 can be adapted to the size of the spot on which the received first wavelength light is projected, that is, the spot on which the received first wavelength light is projected. Matching, for example, equal to the spot area on which the received light of the first wavelength is projected, so that the entire beam of light of the first wavelength can be reflected.
  • the first excitation light is homogenized by the homogenization device 202, it is further transmitted through the first region 404a1, and is incident on the collection lens 205, collected by the collection lens 205, and transmitted to the wavelength conversion device 206.
  • the first excitation light is reflected by the non-wavelength conversion section of the wavelength conversion device 206 and then exits the collection lens 205, is reflected by the third region 404a3 to the first relay lens 307, is collected by the first relay lens 307 and transmitted to the second
  • the light guide 408b is further reflected by the second light guide 408b to the second relay lens 310, collected by the second relay lens 310, and transmitted to the subsequent optical system.
  • the first light guide 408a does not affect the transmission of the light of the first wavelength, and has transmission characteristics for the light of the first wavelength.
  • the second wavelength light After the second wavelength light is emitted from the collecting lens 205, it is reflected by the regional beam splitter 404a to the first relay lens 307. Wherein, at least a part of the second wavelength light incident on the transparent region 404a2 of the regional beam splitter 404a is transmitted and lost, and this part is light in the overlapping wavelength range of the second wavelength light and the compensation light.
  • the transparent area 404a2 also has the characteristic of reflecting light outside the overlapping wavelength range of the compensation light in the second wavelength light, so that the light outside the overlapping wavelength range of the second wavelength light and the compensation light is The transparent area 404a2 reflects and is utilized.
  • the first relay lens 307 transmits the collected light of the second wavelength to the first light guide 408a, and the first light guide 408a further reflects the light of the second wavelength to the second relay lens 310, and the second relay lens 310 further collects and transmits the second wavelength light to the subsequent optical system.
  • the second light guide 408b is located on the reverse extension path of the light path of the second wavelength light reflected by the first light guide 408a, and the main optical axis of the first wavelength light received by the second light guide 408b is the same as the first
  • the reverse extension of the main optical axis of the second wavelength light reflected by the light guide 408a converges on the reflective surface of the second light guide 408b, and the second light guide 408b moves the light of the first wavelength it receives along the first
  • the light of the second wavelength reflected by the light guide 408a is reflected in the direction of the main optical axis, so that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
  • the area beam splitter 404a includes a first area 404a1, a transparent area 404a2, a third area 404a3, and a fourth area 404a4.
  • the regional light splitting sheet 404a is equivalent to a second light guide and a first light guide superimposed.
  • the second light guide and the first light guide are superimposed in the order in which the light of the first wavelength first reaches the second light guide.
  • the second light guide has the characteristics of reflecting light of the first wavelength and transmitting light of the second wavelength.
  • the first light guide has the characteristics of reflecting the second wavelength light and transmitting the excitation light.
  • the light of the first wavelength transmits the area outside the overlapping area of the first light guide; the light of the first wavelength is reflected by the second light guide; the light of the second wavelength is reflected by the first light guide, wherein the second wavelength
  • the part of the light incident on the second light guide transmits the second light guide.
  • the second light guide and the first light guide are superimposed in an order in which light of the first wavelength first reaches the first guide.
  • the second light guide has a characteristic of reflecting light of a first wavelength
  • the first light guide has a characteristic of reflecting light of a second wavelength and transmitting excitation light.
  • the light of the first wavelength transmits the area other than the overlapping area of the first light guide; the light of the first wavelength transmits the first light guide, and then is reflected by the second light guide.
  • the area size of the first light guide may be equivalent to the area size of the area beam splitter 404a.
  • the area of the second light guide may be equal to the area of the first area 404a1, or may be adapted to the size of the incident spot of the first wavelength light received by it, so as to be able to receive and reflect the entire beam of the first wavelength light; or ,
  • the area of the second light guide can be larger than the incident spot of the first wavelength light, and the second light guide does not affect the transmission of the first wavelength light; because if the second light guide has no limited extension area , It will block the transmission of the first wavelength light.
  • the optical extension of the first wavelength light is smaller than the optical extension of the second wavelength light; the reflective surface area of the second light guide is smaller than the reflective surface area of the first light guide.
  • the transparent area 404a2 In addition, corresponding to the optical characteristics of the transparent area 404a2, it is only necessary to provide an area with the same optical characteristics as the transparent area 404a2 at a corresponding position on the first light guide. However, in the embodiment where the second light source 203 is omitted, there is no need to provide such a region on the second wavelength light guide.
  • the second light guide 408b may be one of a flat mirror or a curved mirror. It is understood that the second light guide 408b may also be a combination of a flat mirror or a curved mirror; where a flat mirror is used To reflect the incident light of the first wavelength and transmit the light of the second wavelength, the plane mirror will not change the divergence angle of the incident light beam of the first wavelength.
  • the plane mirror can be a filter/filter film/dichroic One kind.
  • the second light guide 408b can change the angular distribution of the light beam of the first wavelength.
  • the second light guide 408b is a convex mirror
  • the The two light guides 408b include a convex reflective surface that faces the first wavelength light, reflects the first wavelength light, changes the beam angle distribution, and diverges the beam.
  • the second light guide 408b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to diverge the light by changing the angular distribution of the light of the first wavelength.
  • the convex reflective surface of the second light guide 408b is a structure in which a metal reflective film is plated on a convex structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
  • the second light guide 408b When the second light guide 408b is a concave mirror, the second light guide 408b includes a concave reflective surface facing the first wavelength light, reflecting the first wavelength light, and changing the beam angle distribution. Converge the beam. At this time, the second light guide 408b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength by reflection, but also functions to converge the light by changing the angular distribution of the light of the first wavelength.
  • the concave reflective surface of the second light guide 408b is a structure in which a metal reflective film is plated on a concave structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
  • the compensation light emitted by the second light source 203 is transmitted through the transparent area 404a2 of the regional beam splitter 404a, and then enters the collecting lens 205, and is collected by the collecting lens 205 and transmitted to the wavelength conversion device 206. Further, the compensation light is scattered by the wavelength conversion material provided on the wavelength conversion section of the wavelength conversion device 206. The compensation light is scattered and transmitted along the same optical path as the stimulated light and enters the homogenizing element 212. In the compensation light transmission process, the optical processing of each optical element for the compensation light is the same as the optical processing for the second wavelength light.
  • the transparent area 404a2 of the corresponding area beam splitter 404a can also be omitted.
  • This embodiment only describes the differences between the embodiment shown in FIG. 14A and the first to seventh parts of the embodiments.
  • the optical processing and beam transmission process of the optical elements please refer to the first to sixth Part of the embodiments are not repeated here.
  • a light emitting device includes a first light source 201, a second light source 203, a regional beam splitter 404b, a collecting lens 205, a wavelength conversion device 206, a first relay lens 307, and a light source.
  • the regional beam splitter 404b, the first light guide 408a, and the second light guide 408b are used to replace the regional beam splitter 404a, the first light guide 408a, and the second light guide in the embodiment shown in FIG. 10A, respectively. 408b.
  • the regional beam splitter 404b is the same as the regional beam splitter 404a in that it also includes a first region 404a1, a transparent region 404a2, a third region 404a3, and a fourth region 404a4, and each region is for the first wavelength light and the second wavelength light. And the penetrating characteristic of the compensation light remains unchanged relative to the area beam splitter 404a. The difference is that for the area beam splitter 404b, the first area 404a1 is far away from the collecting lens 205 relative to the third area 404a3; for the area beam splitter 404a, the first area 404a1 is closer to the collecting lens 205 relative to the third area 404a3.
  • the first wavelength light is collected by the first relay lens 307 and transmitted to the second light guide 408b.
  • the second light guide 408b is located on the optical path of the second wavelength light reflected by the first light guide 408a, and the second light guides
  • the main optical axis of the first wavelength light received by the member 408b and the main optical axis of the second wavelength light reflected by the first light guide 408a converge on the reflective surface of the second light guide 408b, and the second light guide 408b converges it
  • the received light of the first wavelength is reflected along the main optical axis direction of the light of the second wavelength reflected by the first light guide 408a, so that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
  • the first light guide 408a like the second light guide 408b, also has the characteristic of reflecting the light of the first wavelength. However, this embodiment does not limit the penetration characteristic of the first light guide 408a to the light of the first wavelength.
  • the light guide 408a may have a characteristic of transmitting light of the first wavelength, or a characteristic of reflecting light of the first wavelength, or a characteristic of partially transmitting and partially reflecting light of the first wavelength, and so on.
  • the area beam splitter 404b in this embodiment may be equivalent to a second light guide and a first light guide superimposed.
  • the second light guide has a characteristic of reflecting excitation light
  • the first light guide has a characteristic of reflecting light of a second wavelength.
  • the second light guide and the first light guide do not affect each other's guidance of the excitation light and the second wavelength light; when the second light guide is located at the second wavelength, the light incident on the first light guide When on the road, the second light guide transmits light of the second wavelength; when the first light guide is located on the light path where the excitation light is incident on the second light guide, the first light guide transmits the excitation light.
  • a light emitting device includes a first light source 201, a second light source 203, a first light guide 408a, a second light guide 408b, a compensation light guide 204c, and a collection lens 205, the wavelength conversion device 206, the first relay lens 307, the excitation light guide 209c1, and the second relay lens 310.
  • optical elements The functions and characteristics of the optical elements, the transmission of the light beam and the optical processing that are not described in this embodiment can refer to the third part of the embodiment and the seventh part of the embodiment, which will not be repeated here.
  • a light emitting device includes a first light source 201, a second light source 203, a first light guide 408a, a second light guide 408b, a compensation light guide 204c, and a collection lens 205, the wavelength conversion device 206, the first relay lens 307, the excitation light guide 209d1, and the second relay lens 310.
  • a light emitting device includes a first light source 201, a second light source 203, a first light guide 204a, a second light guide 204b, a third light guide 408b, and a Four light guides 408a, collection lens 205, wavelength conversion device 206, first relay lens 307, and second relay lens 310.
  • the light of the first wavelength is collected by the collecting lens 205, transmitted through the first light guide 204a, and further incident on the second light guide 204b, reflected by the second light guide 204b, and transmitted to the first relay lens 307 .
  • the second light guide 204b is located on the reverse extension path of the light path of the second wavelength light reflected by the first light guide 204a, and the main optical axis 4e2 of the first wavelength light received by the second light guide 204b and the first light
  • the distance between the main optical axis 4e1 of the second wavelength light received by the guide 204a is greater than the main optical axis 4e4 of the first wavelength light reflected by the second light guide 204b and the main optical axis 4e4 of the second wavelength light reflected by the first light guide 204a.
  • the distance of the optical axis 4e3 makes the distance between the main optical axis of the first wavelength light and the second wavelength light become closer during the transmission process.
  • the function of the third light guide 408b is the same as that of the second light guide 204b.
  • the difference between the third light guide 408b and the second light guide 204b is only the second wavelength light reflected by the fourth light guide 408a.
  • the angle of the main optical axis is different. Since the incident angle of the light of the first wavelength to the second light guide 204b is different from the incident angle of the light to the third guide 408b, accordingly, in order to transmit the light of the first wavelength along the fourth light guide
  • the light of the second wavelength reflected by the 408a is reflected in the direction of the main optical axis, and the angles of the two light with respect to the main optical axis of the light of the second wavelength reflected by the fourth light guide 408a are different.
  • the angle of the main optical axis of the second wavelength light reflected by the third light guide 408b relative to the fourth light guide 408a is: a straight line perpendicular to the reflection surface of the third light guide 408b and the fourth light guide 408a The angle between the main optical axis of the reflected light of the second wavelength.
  • a light emitting device includes a first light source 201, a light homogenizing device 202, a second light source 203, a regional beam splitter 504, a collecting lens 205, a wavelength conversion device 506, and a first middle
  • the relay lens 307, the reflective element 308, the second relay lens 310, the filter wheel 211 and the homogenizing element 212 includes a first light source 201, a light homogenizing device 202, a second light source 203, a regional beam splitter 504, a collecting lens 205, a wavelength conversion device 506, and a first middle
  • the relay lens 307, the reflective element 308, the second relay lens 310, the filter wheel 211 and the homogenizing element 212 includes a first middle
  • the area beam splitter 504 includes a first area 5041, a second area 5042, and a third area 5043.
  • the first area 5041 has the characteristics of transmitting light of the first wavelength, reflecting light of the second wavelength and compensating light.
  • the second area 5042 has the characteristics of transmitting the compensation light and reflecting the first wavelength light; if the compensation light and the second wavelength light have overlapping wavelength ranges, the second area 5042 also transmits the second wavelength light in the overlapping wavelength range Light; this embodiment does not limit the penetration characteristics of the second area 5042 for light outside the overlapping wavelength range of the second wavelength light; preferably, the second area 5042 can reflect light outside the overlapping wavelength range of the second wavelength light .
  • the third area 5043 has the characteristics of reflecting the second wavelength light and compensating light; this embodiment does not limit the penetration characteristics of the third area 5043 to the first wavelength light.
  • the third area 5043 has a transmission characteristic for the first wavelength light, it can be merged with the first area 5041 into one area.
  • the first excitation light transmits the first area 5041 of the light splitter 504, and is collected by the collecting lens 205 and transmitted to the wavelength conversion device 506.
  • the difference between the wavelength conversion device 506 and the wavelength conversion device 206 is that the main optical axis of the first wavelength light formed after the first excitation light is reflected by the non-wavelength conversion section of the wavelength conversion device 506 and the first wavelength light emitted from the wavelength conversion device 506 The main optical axes of the two-wavelength light coincide.
  • the non-wavelength conversion section and the wavelength conversion section are assembled into a circular ring as an example, the non-wavelength conversion section and the wavelength conversion section rotate around the central axis of the wavelength conversion device 506.
  • 19C to 19E show schematic diagrams of radial cross-sections of the non-wavelength conversion section.
  • the radial cross-section can be understood as a cross-section obtained by cutting the non-wavelength conversion section with a plane passing through the central axis of the wavelength conversion device 506.
  • the three-dimensional profile of the non-wavelength conversion section of the wavelength conversion device 506 can be obtained by rotating the shapes 5c, 5d and 5e shown in FIGS. 19C, 19D, and 19E around the central axis 5061 of the wavelength conversion device 506 by a predetermined angle.
  • the first wavelength light 51 is reflected by the reflective surfaces 52c, 52d, and 52e.
  • the main optical axis of the first wavelength light 51 coincides with the main optical axis of the second wavelength light emitted from the wavelength conversion section of the wavelength conversion device 506.
  • the reflective surfaces 52c, 52d, and 52e are convex, concave and flat surfaces, respectively.
  • the present invention is not limited to this, and all the reflective surfaces that reflect the light of the first wavelength and form a reflection surface that coincides with the main optical axis of the light of the second wavelength fall within the protection scope of the present invention.
  • the embodiment shown in FIG. 19A corresponds to the embodiment shown in FIG. 8A
  • the second light guide is omitted.
  • the area beam splitter 504 in this embodiment may be equivalent to a second light guide and a first light guide superimposed.
  • the second light guide has a characteristic of reflecting excitation light
  • the first light guide has a characteristic of reflecting light of a second wavelength.
  • the second light guide and the first light guide do not affect each other's guidance of the excitation light and the second wavelength light; when the second light guide is located at the second wavelength, the light incident on the first light guide When on the road, the second light guide transmits light of the second wavelength; when the first light guide is located on the light path where the excitation light is incident on the second light guide, the first light guide transmits the excitation light.
  • a light emitting device includes a first light source 201, a light homogenizing device 202, a second light source 203, first light guides 608a and 608b, and second light guides 604 and 609 ,
  • the wavelength conversion section of the wavelength conversion device in the sixth part of the embodiment is a reflective wavelength conversion section, and the second wavelength light and the first wavelength light are separated from the wavelength conversion device
  • the wavelength conversion section of the wavelength conversion device 606 is a transmissive wavelength conversion section, and the second wavelength light and the first wavelength light are emitted from different sides of the wavelength conversion device 606.
  • the first excitation light emitted by the first light source 201 is homogenized by the light homogenizing device 202 and then incident to the collection lens 605a, collected by the collection lens 605a, and transmitted to the wavelength conversion device 606.
  • the non-wavelength conversion section of the wavelength conversion device 606 reflects the first excitation light to obtain the first wavelength light.
  • the first wavelength light is further collected by the collecting lens 605a and transmitted to the second light guide 604.
  • the second light guide 604 transfers the first light
  • the wavelength light is reflected to the first relay lens 607, the first wavelength light is further collected by the first relay lens 607 and transmitted to the second light guide 609, and reflected by the second light guide 609 to the second relay lens 310.
  • the first light guide 608b does not affect the transmission of the first wavelength light, and has the characteristic of transmitting the first wavelength light.
  • the wavelength conversion section of the wavelength conversion device 606 receives the first excitation light and is excited to generate light of the second wavelength.
  • the light of the second wavelength is collected by the collection lens 605b and enters the first light guide 608a, and passes through the first light guide.
  • 608a is reflected to the first light guide 608b, and is further reflected to the second relay lens 310 by the first light guide 608b.
  • the second relay lens 310 collects the first wavelength light and the second wavelength light, and transmits the first wavelength light and the second wavelength light to the filter wheel 211.
  • the main optical axis of the light of the first wavelength entering the homogenization element 212 coincides with the main optical axis of the light of the second wavelength entering the homogenizing element.
  • FIG. 21 is a schematic diagram of the structure of the light-emitting device of the present invention.
  • the light emitting device includes a first light source 201, a first light guide 204a, a second light guide 204b, a wavelength conversion device 206, a collecting lens 205, a first relay lens 207, a reflection sheet 208, and a second relay lens 210,
  • the light source device further includes a second light source 203, a light homogenizing device 202, a filter wheel 211, an integrator rod 212, and a compensation light guide 213.
  • the compensation light emitted by the second light source 203 first enters the wavelength conversion section, and then forms Lambertian distributed light after being scattered and reflected.
  • the two-wavelength light is emitted together, that is, the compensation light and the second-wavelength light are combined at the light-emitting surface position of the wavelength conversion section; and the compensation light emitted by the second light source 203 in this embodiment is not incident on the wavelength conversion section, but After the light of the second wavelength is generated, it photosynthesizes light with the second wavelength through the compensation light guide 213.
  • the technical solution avoids the light loss caused by the compensation light being scattered by the wavelength conversion device, and greatly improves the light utilization rate of the compensation light.
  • the compensation light guide 213 is arranged on the exit light path of the second wavelength light, specifically, on the exit light path of the integrator rod 212.
  • the second wavelength light and the compensation light are incident on the compensation light from two directions respectively.
  • the light guides 213 are thus combined into one bundle.
  • the compensation light guide 213 can be realized by setting a small reflection area on a transparent substrate as shown in the figure.
  • the compensation light is incident on the small reflection area and reflected by the small reflection area, and the second wavelength light covers the large area of the compensation light guide 213.
  • the second wavelength light incident on the transparent substrate in the non-small reflection area is directly transmitted.
  • the transmission and reflection characteristics of the compensation light guide 213 for the second wavelength light and the compensation light can also be exchanged, and this technical solution can be realized by providing a compensation light transmission area on the reflective sheet.
  • the compensating light guide 213 is arranged on the exit light path of the integrator rod 212.
  • the compensating light guide 213 may also be arranged at other positions, for example, it may be arranged on the incident light of the integrator rod 212. , Or set on the optical path between the wavelength conversion device and the filter wheel.
  • part of the technical solution of this embodiment aims to prevent the compensation light from being incident on the wavelength conversion section, so as to avoid the light loss caused by the compensation light due to the scattering of the wavelength conversion section.
  • the present invention also provides a projection system, which includes the light emitting device shown in any of the above embodiments.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Disclosed is a light-emitting device, comprising a light source, a light guiding system (204), and a wavelength conversion device (206). The light source comprises a first light source (201), and the first light source (201) is used for emitting first excitation light; the light guiding system (204) is used for guiding the first excitation light to the wavelength conversion device (206); the wavelength conversion device (206) comprises at least a wavelength conversion section and a non-wavelength conversion section, the wavelength conversion device (206) is formed by assembling an annular or fan-shaped wavelength conversion section and a non-wavelength conversion section, the wavelength conversion section is excited by the first excitation light to generate second wavelength light, and the non-wavelength conversion section reflects the first excitation light to result in first wavelength light; wavelength coverage ranges of the first wavelength light and the second wavelength light are different; and the light guiding system (204) is further used for guiding the first wavelength light and the second wavelength light along an emergent light channel. A projection system involving the light-emitting device is disclosed.

Description

发光装置及投影***Light emitting device and projection system 技术领域Technical field
本发明涉及投影技术领域，特别涉及一种发光装置及投影***。The present invention relates to the field of projection technology, in particular to a light emitting device and a projection system.
背景技术Background technique
现有投影技术领域中，采用半导体蓝光激光器激发荧光粉产生红光和绿光，并利用半导体蓝光激光器本身发射的蓝光与红光和绿光形成三基色光以调制图像，是常用的一种方法。In the field of existing projection technology, using a semiconductor blue laser to excite phosphors to generate red light and green light, and using the blue light emitted by the semiconductor blue laser itself to form three primary colors with red and green light to modulate the image is a common method .
如图1所示，包括光源1，光源1为激光器光源，用于发出激发光；设置在光源1出光方向上的扩散片2；设置在扩散片2出光方向且与出光方向成45°角的二向色镜3；设置在二向色镜3出光方向的荧光色轮5，荧光色轮5设置有激光透射区和涂有荧光粉的波长转换区；设置在荧光色轮5周围的中继回路7，其中，中继回路7包含三个透镜与三个反射镜组成的光路转换***；另外，还包括两个准直组件，其中，二向色镜3和荧光色轮5之间设置准直组件4，荧光色轮5与中继回路7之间设置准直组件6。使用时，激光器光源1发射出的激光经扩散片2后形成圆形高斯光束，透过二向色镜3，经准直组件4准直后照射到旋转的荧光色轮5上。当激光照射到激光透射区时，激光透过激光透射区，经过准直组件6准直后，通过中继回路7转向，经过二向色镜3出射；当激光照射到荧光色轮5的波长转换区时，激发在波长转换区的荧光粉受激发出荧光，激发的荧光经准直组件4后照射到二向色镜3，经二向色镜3反射后出射，出射的激光和荧光还会经过匀化组件的匀化后进入显示芯片成像。随着荧光色轮5的旋转，该光源***可不断获得时序出射的激光和荧光。该激光光源发出的激光和荧光在光机的显示芯片上成像。As shown in Figure 1, it includes a light source 1. The light source 1 is a laser light source for emitting excitation light; a diffuser 2 arranged in the light-emitting direction of the light source 1; a diffuser 2 arranged in the light-emitting direction of the diffuser 2 and at an angle of 45° to the light-emitting direction Dichroic mirror 3; a fluorescent color wheel 5 arranged in the direction of light emission of the dichroic mirror 3. The fluorescent color wheel 5 is provided with a laser transmission area and a wavelength conversion area coated with phosphor; a relay arranged around the fluorescent color wheel 5 Circuit 7, wherein the relay circuit 7 includes an optical path conversion system composed of three lenses and three mirrors; in addition, it also includes two collimating components, among which, a collimator is arranged between the dichroic mirror 3 and the fluorescent color wheel 5. A collimating component 6 is arranged between the straight component 4, the fluorescent color wheel 5 and the relay circuit 7. When in use, the laser light emitted by the laser light source 1 forms a circular Gaussian beam after passing through the diffuser 2, passes through the dichroic mirror 3, is collimated by the collimating component 4, and irradiates the rotating fluorescent color wheel 5. When the laser is irradiated to the laser transmission area, the laser passes through the laser transmission area, after being collimated by the collimating component 6, it is turned by the relay circuit 7 and exits through the dichroic mirror 3; when the laser is irradiated to the wavelength of the fluorescent color wheel 5 In the conversion zone, the phosphor excited in the wavelength conversion zone is excited to emit fluorescence, and the excited fluorescence is irradiated to the dichroic mirror 3 through the collimating component 4, and then exits after being reflected by the dichroic mirror 3. The emitted laser and fluorescence are reduced After being homogenized by the homogenization component, it enters the display chip for imaging. With the rotation of the fluorescent color wheel 5, the light source system can continuously obtain laser light and fluorescent light emitted sequentially. The laser light and fluorescence emitted by the laser light source are imaged on the display chip of the optical machine.
但是，现有技术中的光源***，光效相对于传统的光源来说光效较高，但激光透射过荧光色轮5的激光透射区后还需要经过中继回路进行转向后才能通过二向色镜3合光，一方面，中继回路7会损失光，使得光效不能满足本 领域对光效更高的要求，另一方面，中继回路7包括三个透镜与三个反射镜组成，光路结构复杂，无形中增加了成本，也使得光源***体积更大。However, the light source system in the prior art has higher light efficiency than traditional light sources. However, after the laser has passed through the laser transmission area of the fluorescent color wheel 5, it needs to pass through the relay circuit for steering before passing through the two-way The color mirror 3 combines light. On the one hand, the relay circuit 7 will lose light, making the light efficiency unable to meet the higher requirements for light efficiency in this field. On the other hand, the relay circuit 7 includes three lenses and three mirrors. , The light path structure is complicated, which invisibly increases the cost, and also makes the light source system larger.
发明内容Summary of the invention
有鉴于此：In view of this:
本发明提供一种发光装置，其特征在于，包括光源、光引导***和波长转换装置；The invention provides a light emitting device, which is characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
所述光源包括第一光源，所述第一光源用于发射第一激发光；The light source includes a first light source, and the first light source is used to emit a first excitation light;
所述光引导***用于将所述第一激发光引导至所述波长转换装置；The light guide system is used to guide the first excitation light to the wavelength conversion device;
所述波长转换装置至少包括一波长转换区段和一非波长转换区段，所述波长转换装置由环形或扇形的所述波长转换区段和所述波长非转换区段拼接而成，所述波长转换区段受所述第一激发光的激发而产生第二波长光，所述非波长转换区段反射所述第一激发光得第一波长光；The wavelength conversion device at least includes a wavelength conversion section and a non-wavelength conversion section, and the wavelength conversion device is formed by splicing the ring-shaped or fan-shaped wavelength conversion section and the wavelength non-conversion section. The wavelength conversion section is excited by the first excitation light to generate second wavelength light, and the non-wavelength conversion section reflects the first excitation light to obtain first wavelength light;
其中所述第一波长光和所述第二波长光的波长覆盖范围不同；Wherein the wavelength coverage of the first wavelength light and the second wavelength light are different;
所述光引导***还用于引导所述第一波长光和第二波长光沿出射光通道。The light guide system is also used to guide the first wavelength light and the second wavelength light along the exit light channel.
在一实施方式中，所述波长转换装置还包括一驱动装置，所述驱动装置周期性运动以使得所述波长转换区段和所述非波长转换区段分时位于所述第一激发光的光路上，In one embodiment, the wavelength conversion device further includes a driving device that periodically moves to make the wavelength conversion section and the non-wavelength conversion section time-sharing located at the position of the first excitation light Light path,
所述波长转换区段至少包括一发光层，所述发光层为有机粘接材料荧光粉层、无机粘接材料荧光粉层或荧光陶瓷中的一种。The wavelength conversion section includes at least one light-emitting layer, and the light-emitting layer is one of an organic bonding material phosphor layer, an inorganic bonding material phosphor layer, or a fluorescent ceramic.
在一实施方式中，所述非波长转换区段至少包括一用于对第一激发光反射的反射层或光学膜层，所述反射层包括用于镜面反射的金属反射层或用于散射的漫反射层；In one embodiment, the non-wavelength conversion section includes at least one reflective layer or optical film layer for reflecting the first excitation light, and the reflective layer includes a metal reflective layer for specular reflection or a scattering layer. Diffuse reflection layer
所述光学膜层包括可对第一激发光波段反射的介质膜层、滤光层或二向色片中的一种。The optical film layer includes one of a dielectric film layer, a filter layer or a dichroic film that can reflect the first excitation light wavelength band.
本发明提供一种发光装置，其特征在于，包括光源、光引导***和波长转换装置；The invention provides a light emitting device, which is characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
所述光源包括第一光源，所述第一光源用于发射第一激发光，所述第一激发光沿入射光通道入射至所述光引导***；The light source includes a first light source, the first light source is used to emit a first excitation light, and the first excitation light is incident to the light guiding system along an incident light channel;
所述光引导***用于将所述第一激发光引导至所述波长转换装置；The light guide system is used to guide the first excitation light to the wavelength conversion device;
所述波长转换装置至少包括一波长转换区段和一非波长转换区段，所述波长转换区段受所述第一激发光的激发而产生第二波长光，所述非波长转换区段反射所述第一激发光得第一波长光；The wavelength conversion device includes at least a wavelength conversion section and a non-wavelength conversion section. The wavelength conversion section is excited by the first excitation light to generate a second wavelength light, and the non-wavelength conversion section reflects The first excitation light obtains light of a first wavelength;
所述光引导***还用于引导所述第一波长光和第二波长光沿出射光通道出射；The light guide system is also used to guide the first wavelength light and the second wavelength light to exit along an exit light channel;
其中，所述第一激发光经所述光引导***后斜射向光波长转换装置。Wherein, the first excitation light is obliquely directed toward the light wavelength conversion device after passing through the light guiding system.
在一实施方式中，所述光引导***包括透镜***，所述透镜***设置在所述第一激发光的光路上，所述第一激发光从所述透镜***的非中心位置入射，使得所述第一激发光与所述第一波长光的光路不重叠。In one embodiment, the light guiding system includes a lens system, the lens system is arranged on the optical path of the first excitation light, and the first excitation light is incident from a non-central position of the lens system so that the The optical paths of the first excitation light and the first wavelength light do not overlap.
在一实施方式中，所述光引导***至少包括第一光引导件和第二光引导件，所述第一光引导件设置在第一激发光的光路上，所述第一光引导件透射或反射所述第一激发光；In one embodiment, the light guide system includes at least a first light guide and a second light guide. The first light guide is arranged on the optical path of the first excitation light, and the first light guide transmits Or reflect the first excitation light;
所述第二光引导件设置在第一波长光的光路上，所述第二光引导件透射或反射所述第一波长光。The second light guide is arranged on the optical path of the first wavelength light, and the second light guide transmits or reflects the first wavelength light.
在一实施方式中，所述第一激发光经所述第一光引导件透射进入所述透镜***，经所述透镜***收集进入所述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***入射至所述第二光引导件，所述第二光引导件反射所述第一波长光至出射光通道。In one embodiment, the first excitation light is transmitted through the first light guide into the lens system, collected by the lens system and entered into the wavelength conversion device, and the wavelength conversion device reflects the first The excitation light obtains the first wavelength light, the first wavelength light is incident to the second light guide through the lens system, and the second light guide reflects the first wavelength light to an exit light channel.
在一实施方式中，所述第二光引导件设置在所述第一光引导件和所述第一光源的光路上，所述第一激发光经所述第一光引导件透射进入所述透镜***，经所述透镜***收集进入所述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集进入所述第一光引导件，经所述第一光引导件透射进入所述第二光引导件，所述第二光引导件反射所述第一波长光至出射光通道。In an embodiment, the second light guide is arranged on the optical path between the first light guide and the first light source, and the first excitation light is transmitted through the first light guide and enters the The lens system is collected by the lens system and enters the wavelength conversion device, the wavelength conversion device reflects the first excitation light to obtain the first wavelength light, and the first wavelength light is collected by the lens system and enters the The first light guide is transmitted into the second light guide through the first light guide, and the second light guide reflects the light of the first wavelength to the exit light channel.
在一实施方式中，所述光引导***还包括第一中继透镜和反射元件，所述第一中继透镜用于收集经所述第一光引导件反射的所述第二波长光和经所述第二光引导件反射的第一波长光，所述第一中继透镜将收集的所述第一波长光和所述第二波长光传输至所述反射元件，所述反射元件反射所述第一波长光和所述第二波长光。In one embodiment, the light guide system further includes a first relay lens and a reflective element, and the first relay lens is used to collect the second wavelength light and the light beam reflected by the first light guide. The first wavelength light reflected by the second light guide, the first relay lens transmits the collected first wavelength light and the second wavelength light to the reflective element, and the reflective element reflects The first wavelength light and the second wavelength light.
在一实施方式中，所述光引导***还包括第三光引导件，所述第三光引导件设置于所述第一中继透镜和所述反射元件的光路上，所述第一中继透镜将收集的所述第一波长光传输至所述第三光引导件，所述第三光引导件发射所述第一波长光。In one embodiment, the light guide system further includes a third light guide, the third light guide is disposed on the optical path between the first relay lens and the reflective element, and the first relay The lens transmits the collected light of the first wavelength to the third light guide, and the third light guide emits the light of the first wavelength.
在一实施方式中，所述光引导***还包括光学膜片，所述光学膜片包括第一区域、第三区域和第四区域；In an embodiment, the light guiding system further includes an optical film, the optical film including a first area, a third area, and a fourth area;
所述第一区域透射所述第一激发光和第一波长光并反射所述第二波长光；The first region transmits the first excitation light and the first wavelength light and reflects the second wavelength light;
所述第三区域反射所述第一激发光、所述第一波长光和所述第二波长光；The third region reflects the first excitation light, the first wavelength light, and the second wavelength light;
所述第四区域反射所述第二波长光。The fourth area reflects the second wavelength light.
在一实施方式中，所述第一激发光经所述第一区域透射进入所述透镜***，所述透镜***收集所述第一激发光并入射进入述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集至所述第三区域，所述第三区域反射所述第一波长光至所述第一光引导件，所述第一光引导件透射所述第一波长光至所述第二光引导件，所述第二光引导件反射所述第一波长光。In one embodiment, the first excitation light is transmitted through the first region and enters the lens system, the lens system collects the first excitation light and enters the wavelength conversion device, and the wavelength conversion device reflects The first excitation light obtains the first wavelength light, the first wavelength light is collected by the lens system to the third area, and the third area reflects the first wavelength light to the first A light guide, the first light guide transmits the first wavelength light to the second light guide, and the second light guide reflects the first wavelength light.
在一实施方式中，所述第一激发光经所述第一区域透射进入所述透镜***，所述透镜***收集所述第一激发光并入射进入述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集至所述第三区域，所述第三区域反射所述第一波长光至所述第二光引导件，所述第二光引导件反射所述第一波长光。In one embodiment, the first excitation light is transmitted through the first region and enters the lens system, the lens system collects the first excitation light and enters the wavelength conversion device, and the wavelength conversion device reflects The first excitation light obtains the first wavelength light, the first wavelength light is collected by the lens system to the third area, and the third area reflects the first wavelength light to the second A light guide, and the second light guide reflects the first wavelength light.
在一实施方式中，所述光引导***至少还包括一激发光引导件，所述激发光引导件设置于所述第一光引导件和所述波长转换装置的光路上，所述激发光引导件反射或透射所述第一激发光和第一波长光。In one embodiment, the light guide system further includes at least one excitation light guide, the excitation light guide is disposed on the optical path between the first light guide and the wavelength conversion device, and the excitation light guide The component reflects or transmits the first excitation light and the first wavelength light.
在一实施方式中，所述第一激发光经所述激发光引导件反射进入所述透镜***，所述透镜***收集所述第一激发光至所述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集至所述第一光引导件，所述第一光引导件透射所述第一波长光至所述第二光引导件，所述第二光引导件反射所述第一波长光。In one embodiment, the first excitation light is reflected by the excitation light guide into the lens system, the lens system collects the first excitation light to the wavelength conversion device, and the wavelength conversion device reflects The first excitation light obtains the first wavelength light, the first wavelength light is collected by the lens system to the first light guide, and the first light guide transmits the first wavelength light to The second light guide, the second light guide reflects the first wavelength light.
在一实施方式中，所述第一激发光经所述激发光引导件反射进入所述透镜***，所述透镜***收集所述第一激发光至所述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集至所述第二光引导件，所述第二光引导件反射所述第一波长光。In one embodiment, the first excitation light is reflected by the excitation light guide into the lens system, the lens system collects the first excitation light to the wavelength conversion device, and the wavelength conversion device reflects The first excitation light obtains the first wavelength light, the first wavelength light is collected by the lens system to the second light guide, and the second light guide reflects the first wavelength light.
在一实施方式中，所述光引导***包括第一中继透镜、第三光引导件和第四光引导件；In an embodiment, the light guide system includes a first relay lens, a third light guide, and a fourth light guide;
其中所述第一中继透镜用于收集经所述第一光引导件反射的第二波长光和经所述第二光引导件反射的第一波长光，所述第一中继透镜将收集的所述第一波长光和所述第二波长光传输至所述第三光引导件，所述第三光引导件反射所述第一波长光且透射所述第二波长光至所述第四光引导件，所述第四光引导件反射所述第二波长光。The first relay lens is used to collect the second wavelength light reflected by the first light guide and the first wavelength light reflected by the second light guide, and the first relay lens will collect The first wavelength light and the second wavelength light are transmitted to the third light guide, and the third light guide reflects the first wavelength light and transmits the second wavelength light to the first Four light guides, the fourth light guide reflects the second wavelength light.
在一实施方式中，所述光引导***包括第一中继透镜、第三光引导件和第四光引导件；In an embodiment, the light guide system includes a first relay lens, a third light guide, and a fourth light guide;
其中所述第一中继透镜用于收集经所述第一光引导件反射的第二波长光和经所述第二光引导件反射的第一波长光，所述第一中继透镜将收集的所述第一波长光和所述第二波长光传输至所述第四光引导件，所述第四光引导件反射所述第二波长光且透射所述第一波长光至所述第三光引导件，所述第三光引导件反射所述第一波长光。The first relay lens is used to collect the second wavelength light reflected by the first light guide and the first wavelength light reflected by the second light guide, and the first relay lens will collect The first wavelength light and the second wavelength light are transmitted to the fourth light guide, and the fourth light guide reflects the second wavelength light and transmits the first wavelength light to the first wavelength light. Three light guides, the third light guide reflects the first wavelength light.
在一实施方式中，所述光引导***还包括反射元件和光学膜片；In an embodiment, the light guide system further includes a reflective element and an optical film;
所述反射元件用于反射所述第一激发光、第一波长光和第二波长光；The reflecting element is used to reflect the first excitation light, the first wavelength light and the second wavelength light;
所述光学膜片包括第一区域、第二区域和第三区域，所述第一区域透射所述第一激发光和第一波长光且反射所述第二波长光，所述第二区域反射所述第一激发光和第一波长光，所述第三区域反射所述第二波长光；The optical film includes a first area, a second area, and a third area. The first area transmits the first excitation light and the first wavelength light and reflects the second wavelength light, and the second area reflects The first excitation light and the first wavelength light, and the third region reflects the second wavelength light;
在一实施方式中，所述光引导***还包括至少三激发光引导件，其实所述激发光引导件设置于所述第一激发光的光路上，其中任一所述激发光引导件反射所述第一激发光且透射所述第二波长光。In one embodiment, the light guide system further includes at least three excitation light guides. In fact, the excitation light guide is disposed on the optical path of the first excitation light, and any one of the excitation light guides reflects The first excitation light transmits the second wavelength light.
在一实施方式中，所述第一激发光的主光轴平行于所述透镜***的中心轴方向入射；或In an embodiment, the main optical axis of the first excitation light is incident parallel to the central axis of the lens system; or
所述第一激发光的主光轴非平行于所述透镜***的中心轴方向入射。The main optical axis of the first excitation light is incident non-parallel to the central axis of the lens system.
本发明提供一种发光装置，其特征在于，包括光源、光引导***和波长转换装置；The invention provides a light emitting device, which is characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
所述光源包括第一光源，所述第一光源用于发射第一激发光；The light source includes a first light source, and the first light source is used to emit a first excitation light;
所述光引导***用于将所述第一激发光引导至所述波长转换装置；The light guide system is used to guide the first excitation light to the wavelength conversion device;
所述波长转换装置至少包括一波长转换区段和一非波长转换区段，所述波长转换区段受所述第一激发光的激发而产生第二波长光，所述非波长转换区段反射所述第一激发光得第一波长光；The wavelength conversion device includes at least a wavelength conversion section and a non-wavelength conversion section. The wavelength conversion section is excited by the first excitation light to generate a second wavelength light, and the non-wavelength conversion section reflects The first excitation light obtains light of a first wavelength;
所述光引导***还用于收集所述第一波长光和第二波长光，所述第一波长光和第二波长光在进入出射光通道前的主光轴平行且距离小于阈值。The light guiding system is also used to collect the first wavelength light and the second wavelength light, and the main optical axis of the first wavelength light and the second wavelength light before entering the exit light channel are parallel and the distance is less than a threshold.
在一实施方式中，所述光引导***包括中继透镜组件，所述中继透镜组件用于收集所述第一波长光和第二波长光，使得所述第一波长光和第二波长光按照预定光学扩展量进入所述出射光通道。In one embodiment, the light guide system includes a relay lens assembly for collecting the first wavelength light and the second wavelength light so that the first wavelength light and the second wavelength light Enter the exit light channel according to a predetermined optical expansion amount.
在一实施方式中，所述光引导***至少包括第一光引导件和第二光引导件，所述第一光引导件设置在第二波长光的光路上，所述第一光引导件用于引导所述第二波长光；In one embodiment, the light guide system includes at least a first light guide and a second light guide, the first light guide is arranged on the optical path of the second wavelength light, and the first light guide is used for To guide the second wavelength light;
所述第二光引导件设置在第一波长光的光路上，所述第二光引导件用于引导所述第一波长光，使得在进入所述出射光通道前的所述第一波长光和所述第二波长光的主光轴重合。The second light guide is arranged on the optical path of the first wavelength light, and the second light guide is used to guide the first wavelength light so that the first wavelength light before entering the exit light channel Coincides with the main optical axis of the second wavelength light.
在一实施方式中，所述光引导***至少包括反射镜、透镜或光学膜片中的一种。In one embodiment, the light guiding system includes at least one of a mirror, a lens, or an optical film.
在一实施方式中，所述光引导***包括曲面反射镜，用于改变入射光的方向和角分布；或者In one embodiment, the light guiding system includes a curved mirror for changing the direction and angular distribution of incident light; or
所述光学引导***包括平面反射镜与透镜，所述平面反射镜用于改变所述入射光的方向，所述透镜用于改变所述入射光的角分布。The optical guiding system includes a plane mirror and a lens, the plane mirror is used to change the direction of the incident light, and the lens is used to change the angular distribution of the incident light.
在一实施方式中，所述光学引导***包括凸面反射镜、凸面反射镜、平面反射镜与凹透镜的组合或平面反射镜与凸透镜的组合。In one embodiment, the optical guidance system includes a convex mirror, a convex mirror, a combination of a flat mirror and a concave lens, or a combination of a flat mirror and a convex lens.
在一实施方式中，所述光源还包括第二光源，所述第二光源用于出射补偿光；In an embodiment, the light source further includes a second light source, and the second light source is used to emit compensation light;
所述光引导***包括补偿光引导件，所述补偿光引导件设置于所述补偿光的光路上，其中所述补偿光引导件引导所述补偿光与所述第二波长光的光轴重合。The light guide system includes a compensation light guide, the compensation light guide is disposed on the optical path of the compensation light, wherein the compensation light guide guides the compensation light to coincide with the optical axis of the second wavelength light .
在一实施方式中，所述发光装置包括匀光装置，所述匀光装置设置于所述第一激发光的光路上，所述匀光装置用于对所述第一光源出射的第一激发光进行匀光，所述匀光装置包括复眼透镜组、积分棒或导光棒中的一种。In one embodiment, the light-emitting device includes a light homogenization device, the light homogenization device is arranged on the optical path of the first excitation light, and the light homogenization device is used for the first excitation light emitted by the first light source. The light is homogenized, and the homogenization device includes one of a fly-eye lens group, an integrator rod, or a light guide rod.
在一实施方式中，所述复眼透镜组包括沿所述第一激发光方向依次设置的第一透镜阵列和第二透镜阵列，组成所述第一透镜阵列的各透镜单元在所述波长转换装置表面重叠成像。In one embodiment, the fly-eye lens group includes a first lens array and a second lens array arranged in sequence along the direction of the first excitation light, and each lens unit constituting the first lens array is used in the wavelength conversion device Surface overlap imaging.
本发明提供一种投影***，包括以上任一所述的发光装置，还包括空间光调制***装置和镜头***。The present invention provides a projection system, including any one of the light-emitting devices described above, and further including a spatial light modulation system device and a lens system.
基于上述，本发明的实施例可包括如下有益效果，本发明的实施例的发光装置通过光引导***和波长转换装置的配置，使被波长转换装置非波长转换区段反射的第一波长光和波长转换装置出射的第二波长光合光沿出射光通道出射，而不需要额外其它的光学元件和光束传递路径，在进一步缩小整体的发光装置体积的基础上，尽可能的减少光学元件对光束的吸收损失。Based on the above, the embodiment of the present invention may include the following beneficial effects. The light emitting device of the embodiment of the present invention configures the light guiding system and the wavelength conversion device to make the first wavelength light reflected by the non-wavelength conversion section of the wavelength conversion device and The second-wavelength photosynthetic light emitted by the wavelength conversion device is emitted along the exit light channel without additional optical elements and beam transmission paths. On the basis of further reducing the overall volume of the light-emitting device, the effect of optical elements on the beam is reduced as much as possible. Absorb loss.
附图说明Description of the drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅包含本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only Containing some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings without creative work.
图1为现有技术中的一种发光装置的结构示意图；FIG. 1 is a schematic diagram of a structure of a light emitting device in the prior art;
图2为复眼透镜组的角度校正原理示意图；Fig. 2 is a schematic diagram of the angle correction principle of the fly-eye lens group;
图3为一个实施例中的光引导件的结构示意图；Figure 3 is a schematic view of the structure of a light guide in an embodiment;
图4为一个实施例中的波长转换装置的结构示意图；Fig. 4 is a schematic structural diagram of a wavelength conversion device in an embodiment;
图5为一个实施例中的滤光轮的结构示意图；Fig. 5 is a schematic structural diagram of a filter wheel in an embodiment;
图6为一个实施例中波长转换装置11和滤光轮22同轴设置的结构示意图；FIG. 6 is a schematic structural view of the coaxial arrangement of the wavelength conversion device 11 and the filter wheel 22 in an embodiment;
图7为一个实施例中的光轴校正元件701的结构示意图；FIG. 7 is a schematic structural diagram of an optical axis correction element 701 in an embodiment;
图8A为一个实施例中的发光装置的结构示意图；FIG. 8A is a schematic structural diagram of a light emitting device in an embodiment;
图8B为一个实施例中的发光装置的结构示意图；FIG. 8B is a schematic structural diagram of a light emitting device in an embodiment;
图8C为一个实施例中的发光装置的结构示意图；FIG. 8C is a schematic diagram of the structure of a light emitting device in an embodiment;
图8D为一个实施例中的发光装置的结构示意图；FIG. 8D is a schematic structural diagram of a light emitting device in an embodiment;
图9为一个实施例中的发光装置的结构示意图；Fig. 9 is a schematic structural diagram of a light emitting device in an embodiment;
图10为一个实施例中的发光装置的结构示意图；FIG. 10 is a schematic diagram of the structure of a light emitting device in an embodiment;
图11为一个实施例中的发光装置的结构示意图；FIG. 11 is a schematic structural diagram of a light emitting device in an embodiment;
图12为一个实施例中的发光装置的结构示意图；FIG. 12 is a schematic diagram of the structure of a light emitting device in an embodiment;
图13为一个实施例中的发光装置的结构示意图；FIG. 13 is a schematic diagram of the structure of a light emitting device in an embodiment;
图14A为一个实施例中的发光装置的结构示意图；Fig. 14A is a schematic structural diagram of a light emitting device in an embodiment;
图14B为一个实施例中的区域分光片404a的结构示意图FIG. 14B is a schematic diagram of the structure of the regional beam splitter 404a in an embodiment
图15为一个实施例中的发光装置的结构示意图；15 is a schematic diagram of the structure of a light emitting device in an embodiment;
图16为一个实施例中的发光装置的结构示意图；Figure 16 is a schematic diagram of the structure of a light emitting device in an embodiment;
图17为一个实施例中的发光装置的结构示意图；FIG. 17 is a schematic structural diagram of a light emitting device in an embodiment;
图18为一个实施例中的发光装置的结构示意图；FIG. 18 is a schematic diagram of a structure of a light emitting device in an embodiment;
图19A为一个实施例中的发光装置的结构示意图；FIG. 19A is a schematic diagram of the structure of a light emitting device in an embodiment;
图19B为一个实施例中的区域分光片504的结构示意图；FIG. 19B is a schematic diagram of the structure of the area beam splitter 504 in an embodiment;
图19C为一个实施例中的非波长转换区段的径向剖面的示意图；19C is a schematic diagram of a radial cross-section of a non-wavelength conversion section in an embodiment;
图19D为一个实施例中的非波长转换区段的径向剖面的示意图；19D is a schematic diagram of a radial cross-section of a non-wavelength conversion section in an embodiment;
图19E为一个实施例中的非波长转换区段的径向剖面的示意图；19E is a schematic diagram of a radial cross-section of a non-wavelength conversion section in an embodiment;
图20为一个实施例中的发光装置的结构示意图；20 is a schematic diagram of the structure of a light emitting device in an embodiment;
图21为一个实施例中的发光装置的结构示意图。FIG. 21 is a schematic diagram of the structure of a light emitting device in an embodiment.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，由本申请任意两个或两个以上的实施例的部分或全部技术特征组成的可行的技术方案，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are feasible and composed of part or all of the technical features of any two or more embodiments of the present application. All technical solutions fall within the protection scope of the present invention.
本发明中，光束的主光轴可以理解为光束的中心轴，主光轴的方向为光束前进的方向。In the present invention, the main optical axis of the light beam can be understood as the central axis of the light beam, and the direction of the main optical axis is the direction in which the light beam advances.
本发明中，两束光的主光轴“重合”，可以理解为不是绝对意义上的重合而是大致重合/精度误差范围内的重合(工业生产必然存在误差)。本领域技术人员可以理解的，在本发明所提供的技术方案的基础上，使得两束光的主光轴平行且间距小于阈值的技术方案也属于本发明保护的范围，该技术方案也可以称为“误差范围内的重合”。In the present invention, the "coincidence" of the main optical axes of the two beams can be understood as not overlapping in an absolute sense but roughly overlapping within the range of accuracy error (industrial production must have errors). Those skilled in the art can understand that on the basis of the technical solution provided by the present invention, the technical solution that makes the main optical axes of the two beams parallel and the spacing is smaller than the threshold also belongs to the protection scope of the present invention, and this technical solution can also be called It is "coincidence within error range".
本发明提供一种发光装置，包括第一光源、匀光装置、光引导件、收集透镜、波长转换装置、中继透镜。The invention provides a light emitting device, which includes a first light source, a light homogenizing device, a light guide, a collecting lens, a wavelength conversion device, and a relay lens.
其中，所述第一光源用于发射第一激发光，第一激发光经匀光装置匀光后进入光引导件，经光引导件入射至收集透镜，经收集透镜收集后斜入射至波长转换装置；其中，可以理解的是，第一激发光为固态光源，包括激光或LED光源。其中，所述固态光源发出的光优选为蓝光，在此不进行限制，还可以是紫外光、绿光等，当为蓝光时，有利于保护人眼，并激发效率更高。Wherein, the first light source is used to emit the first excitation light, the first excitation light enters the light guide after being homogenized by the light homogenization device, is incident on the collection lens through the light guide, and is collected by the collection lens and then obliquely incident to the wavelength conversion Device; Among them, it can be understood that the first excitation light is a solid-state light source, including a laser or LED light source. Wherein, the light emitted by the solid-state light source is preferably blue light, which is not limited here, and can also be ultraviolet light, green light, etc., when it is blue light, it is beneficial to protect human eyes and has higher excitation efficiency.
波长转换装置包括波长转换区段和非波长转换区段，波长转换装置周期性运动以使得波长转换区段和非波长转换区段分时位于第一激发光的路径上， 非波长转换区段用于反射第一激发光，波长转换区段受第一激发光的激发而产生第二波长光，第一激发光由非波长转换区段反射后得到第一波长光，第一波长光和第二波长光的波长范围不同，第一波长光和第二波长光经收集透镜收集并传输至光引导件，经光引导件引导至第一中继透镜。第一中继透镜分时收集第一波长光和第二波长光，并分时将第一波长光和第二波长光传输至后续的光学***，其中光引导件用于将经波长转换装置的非波长转换区段反射后第一波长光引导至与第二波长光的主光轴重合。The wavelength conversion device includes a wavelength conversion section and a non-wavelength conversion section. The wavelength conversion device periodically moves so that the wavelength conversion section and the non-wavelength conversion section are time-shared on the path of the first excitation light. To reflect the first excitation light, the wavelength conversion section is excited by the first excitation light to generate the second wavelength light. The first excitation light is reflected by the non-wavelength conversion section to obtain the first wavelength light, the first wavelength light and the second wavelength light. The wavelength range of the wavelength light is different. The first wavelength light and the second wavelength light are collected by the collecting lens and transmitted to the light guide, and guided to the first relay lens by the light guide. The first relay lens collects the light of the first wavelength and the light of the second wavelength in time sharing, and transmits the light of the first wavelength and the second wavelength to the subsequent optical system in time sharing, wherein the light guide is used to transfer the light of the wavelength conversion device After the non-wavelength conversion section is reflected, the first wavelength light is guided to coincide with the main optical axis of the second wavelength light.
其中，波长转换装置的非波长转换区段的表面平行于波长转换装置的运动平面，也即荧光色轮的转动轴垂直于非波长转换区段的表面。为了实现第一激发光以斜入射的方式入射到波长转换装置表面，第一激发光在偏离收集透镜中心的位置入射到收集透镜，使得第一激发光被收集透镜改变光传输方向，从而倾斜的入射到波长转换装置表面。随后，从非波长转换区段反射出的第一波长光入射到收集透镜。在收集透镜与波长转换装之间，第一激发光和第一波长光形成“V”字型光路。在另一个实施方式中，非波长转换区段的表面也可以不平行于波长转换装置的运动平面，而是相对于波长转换装置的运动平面有一个倾角，但是仍要保证第一激发光以斜入射的方式入射到非波长转换区段的表面，从而实现第一激发光与第一波长光的光路分离，该技术方案可以使得发光装置的光路设计更加灵活多变。Wherein, the surface of the non-wavelength conversion section of the wavelength conversion device is parallel to the movement plane of the wavelength conversion device, that is, the rotation axis of the fluorescent color wheel is perpendicular to the surface of the non-wavelength conversion section. In order to realize that the first excitation light is incident on the surface of the wavelength conversion device in an obliquely incident manner, the first excitation light is incident on the collection lens at a position away from the center of the collection lens, so that the first excitation light is changed by the collection lens to change the light transmission direction, thereby obliquely Incident to the surface of the wavelength conversion device. Subsequently, the first wavelength light reflected from the non-wavelength conversion section is incident on the collection lens. Between the collection lens and the wavelength conversion device, the first excitation light and the first wavelength light form a "V"-shaped optical path. In another embodiment, the surface of the non-wavelength conversion section may not be parallel to the movement plane of the wavelength conversion device, but has an inclination angle with respect to the movement plane of the wavelength conversion device, but it is still necessary to ensure that the first excitation light is oblique The incident method is incident on the surface of the non-wavelength conversion section, thereby realizing the optical path separation of the first excitation light and the first wavelength light. This technical solution can make the optical path design of the light emitting device more flexible and changeable.
匀光装置包括积分棒、导光棒、单复眼透镜、复眼透镜组或透镜组，用于对第一光源发出的第一激发光进行匀光。在其他实施方式中，若第一光源发出的第一激发光均匀性较好，也可以不设置匀光装置，本发明对此不进行限制。The homogenization device includes an integrator rod, a light guide rod, a single fly-eye lens, a fly-eye lens group or a lens group, and is used for homogenizing the first excitation light emitted by the first light source. In other embodiments, if the first excitation light emitted by the first light source has better uniformity, the homogenization device may not be provided, which is not limited in the present invention.
下面对复眼透镜组第一激发光的匀光原理进行说明，通过在光引导元件前设置复眼透镜组，对入射到复眼透镜组的第一激发光L1进行调节，从而调整并校正入射到光引导元件的第一激发光L1的方向。The principle of homogenization of the first excitation light of the fly-eye lens group is described below. By setting the fly-eye lens group in front of the light guide element, the first excitation light L1 incident on the fly-eye lens group is adjusted to adjust and correct the incident light. The direction of the first excitation light L1 of the guide element.
如图2所示为复眼透镜组的角度校正原理示意图，复眼透镜组具有很好的校正光路的作用。当光束1沿平行于复眼透镜组的光轴入射时，出射光主光轴方向不变，仍然平行于复眼透镜组的光轴；当光束2沿与复眼透镜组的光轴呈α角入射时，出射光光束2的主光轴与复眼透镜组的光轴呈β角，α＞ β。即复眼透镜组具有减小光束倾斜角的功能，例如当α约为1°时，β约为0.2°。通过调节α的大小，可以调节出射光角度β的大小，而且调节精度高于直接调节β的精度，使得能够将入射到收集透镜的第一激发光L1的光束边缘与收集透镜205的中心轴的间距尽可能缩小。本发明在实际应用中，可利用该技术方案将第一激发光L1入射至收集透镜的光束边缘与收集透镜中心轴的间距控制在0.2～0.5mm范围内，极大的提高了波长转换装置表面的光斑成像质量，为后续整个光源装置出射面分布均匀的光提供了基础条件。Fig. 2 is a schematic diagram of the angle correction principle of the fly-eye lens group. The fly-eye lens group has a good function of correcting the optical path. When the beam 1 is incident along the optical axis parallel to the fly-eye lens group, the direction of the main optical axis of the outgoing light remains unchanged and is still parallel to the optical axis of the fly-eye lens group; when the beam 2 is incident along the optical axis of the fly-eye lens group at an angle α , The main optical axis of the outgoing light beam 2 and the optical axis of the fly-eye lens group form an angle β, and α>β. That is, the fly-eye lens group has the function of reducing the inclination angle of the beam, for example, when α is about 1°, β is about 0.2°. By adjusting the size of α, the size of the outgoing light angle β can be adjusted, and the adjustment accuracy is higher than that of directly adjusting β, so that the beam edge of the first excitation light L1 incident on the collection lens can be aligned with the center axis of the collection lens 205. Keep the spacing as small as possible. In practical applications of the present invention, this technical solution can be used to control the distance between the beam edge of the first excitation light L1 incident on the collecting lens and the central axis of the collecting lens within the range of 0.2-0.5mm, which greatly improves the surface of the wavelength conversion device. The imaging quality of the light spot provides the basic conditions for the subsequent light distribution of the entire light source device on the exit surface.
除了角度校正的作用，复眼透镜组还具有使光斑均匀成像的功能。在本实施例中，复眼透镜组包括沿第一激发光L1方向依次设置的第一透镜阵列和第二透镜阵列，其中第一透镜阵列和第二透镜阵列分别由多个一一对应透镜单元组成，两个透镜阵列的光轴平行，且第一透镜阵列的透镜单元的焦点与第二透镜阵列中对应的透镜单元的中心重合。第二透镜阵列的每个透镜单元将第一透镜阵列对应的透镜单元重叠成像在无限远位置，然后该无限远位置的重叠像经光源装置中的其他透镜的作用，在波长转换装置表面重叠成像。简单来说，即组成第一透镜阵列的各透镜单元在所述波长转换装置表面重叠成像。该技术方案通过将各透镜单元的成像光斑叠加，消弭、补偿了可能存在的个别光斑的不均匀性对总光斑的影响，为后续整个光源装置出射面分布均匀的光提供了保障。此外，由于从复眼透镜组到波长转换装置表面为成像过程，一旦该成像关系确立，物、像和透镜都确定了，即使入射到复眼透镜组的光发生偏斜也不会对波长转换装置表面的光斑位置和均匀性产生影响(只会影响光束在成像位置之前或者之后的光分布)。In addition to the angle correction function, the fly-eye lens group also has the function of uniformly imaging the light spot. In this embodiment, the fly-eye lens group includes a first lens array and a second lens array sequentially arranged along the direction of the first excitation light L1, wherein the first lens array and the second lens array are respectively composed of a plurality of one-to-one corresponding lens units , The optical axes of the two lens arrays are parallel, and the focal point of the lens unit of the first lens array coincides with the center of the corresponding lens unit in the second lens array. Each lens unit of the second lens array overlaps and image the lens unit corresponding to the first lens array at the infinity position, and then the overlapping image at the infinity position is superimposed and formed on the surface of the wavelength conversion device by the action of other lenses in the light source device . To put it simply, the lens units constituting the first lens array overlap and form images on the surface of the wavelength conversion device. This technical solution eliminates and compensates the influence of the possible non-uniformity of individual light spots on the total light spot by superimposing the imaging light spots of each lens unit, and provides a guarantee for the subsequent uniform light distribution on the exit surface of the entire light source device. In addition, since the imaging process from the fly-eye lens group to the surface of the wavelength conversion device is an imaging process, once the imaging relationship is established, the object, image and lens are determined. Even if the light incident on the fly-eye lens group is deflected, it will not affect the surface of the wavelength conversion device. The position and uniformity of the light spot will affect (only the light distribution of the beam before or after the imaging position).
发光装置的中继透镜的个数可以是一个也可以是多个，本发明不做限制。The number of relay lenses of the light-emitting device may be one or more, which is not limited in the present invention.
本发明的光引导件可以是任何可实现光学透射、反射、汇聚或发散特性的光学元器件，具体而言，可以是实现反射效果的平面反射镜、或实现反射扩散效果的凸面反射镜、或实现反射汇聚效果的凹面反射镜、或实现部分波长光透射部分及波长光反射的区域膜片、二向色片或滤光片等。进一步，光引导件不限于上述提到的光学元器件，在一实施例中，光学引导件也可以是多种光学元器件组成。The light guide of the present invention can be any optical component that can achieve optical transmission, reflection, convergence or divergence. Specifically, it can be a flat mirror that achieves a reflection effect, or a convex mirror that achieves a reflection and diffusion effect, or Concave mirrors that realize the reflection and convergence effect, or regional diaphragms, dichroic plates or filters that realize partial wavelength light transmission and reflection of wavelength light. Further, the light guide is not limited to the above-mentioned optical components. In an embodiment, the optical guide may also be composed of multiple optical components.
由于平面反射镜、区域膜片、二向色片或滤光片都是本领域的常用光学元器件，此处不再鳌述。主要针对本发明光引导件为曲面镜的实施例进行说 明，如图3所示，可以理解的是，光引导件可以是平面镜或曲面镜中的一种；其中平面射镜用于对入射的第一波长光进行反射，并透射第二波长光，平面镜不会改变入射的第一波长光光束的发散角。Since plane mirrors, area diaphragms, dichroic plates or filters are common optical components in this field, they will not be described here. The light guide of the present invention is mainly described as an embodiment of a curved mirror. As shown in FIG. 3, it can be understood that the light guide can be one of a flat mirror or a curved mirror; wherein the flat mirror is used to The first wavelength light is reflected and the second wavelength light is transmitted, and the plane mirror does not change the divergence angle of the incident light beam of the first wavelength.
当光引导件为曲面镜时，光引导件可实现对第一波长光光束角分布的改变，具体来说，当光引导件为凸面镜时，此时光引导件包括一凸面反射面，该凸面反射面迎向第一波长光，将第一波长光反射，并改变光束角分布，对光束进行发散。此时光引导件的作用除了通过反射使得第一波长光能够与第二波长光合光向出射光通道传输外，另一作用在于通过改变第一波长光的光束角分布，对光束进行发散。需要说明的是，光引导件的凸面反射面在一凸面结构上镀制金属反射膜的结构。在其他实施方式中，也可以通过镀制介质反射膜等方式实现。可以理解的是，通过两个光学元器件的组合实现曲面镜的功能，利用平面反射镜改变第一波长光的方向，利用透镜改变第一波长光的角分布。在一个实施方式中，通过平面反射镜与凹透镜的组合来替代凸面镜，既可以使得第一波长光先穿过凹透镜，然后入射到平面反射镜，也可以使得第一激发光先被平面反射镜反射，然后透射过凹透镜。When the light guide is a curved mirror, the light guide can change the angular distribution of the light beam of the first wavelength. Specifically, when the light guide is a convex mirror, the light guide includes a convex reflective surface. The reflecting surface faces the light of the first wavelength, reflects the light of the first wavelength, changes the angular distribution of the beam, and diverges the beam. At this time, the light guide not only allows the light of the first wavelength to be transmitted to the outgoing optical channel with the photosynthesized light of the second wavelength through reflection, but also diverges the light beam by changing the angular distribution of the light of the first wavelength. It should be noted that the convex reflective surface of the light guide is a structure in which a metal reflective film is plated on a convex structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like. It can be understood that the function of a curved mirror is realized by the combination of two optical components, the plane mirror is used to change the direction of the first wavelength light, and the lens is used to change the angular distribution of the first wavelength light. In one embodiment, the convex mirror is replaced by a combination of a flat mirror and a concave lens, so that the first wavelength light can pass through the concave lens first and then enter the flat mirror, or the first excitation light can be first by the flat mirror. Reflected and then transmitted through the concave lens.
当光引导件为凹面镜时，此时光引导件包括一凹面反射面，该凹面反射面迎向第一波长光，将第一波长光反射，并改变光束角分布，对光束进行汇聚。此时光引导件的作用除了通过反射使得第一波长光能够与第二波长光合光向出射光通道传输外，另一作用在于通过改变第一波长光的光束角分布，对光束进行汇聚。需要说明的是，光引导件的凹面反射面在一凹面结构上镀制金属反射膜的结构。在其他实施方式中，也可以通过镀制介质反射膜等方式实现。可以理解的是，通过两个光学元器件的组合实现曲面镜的功能，利用平面反射镜改变第一激发光的方向，利用透镜改变第一波长光的角分布。通过平面反射镜与凸透镜的组合来替代凹面镜，既可以使得第一波长光先穿过凸透镜，然后入射到平面反射面，也可以使得第一波长光先被平面反射镜反射，然后透射过凸透镜。When the light guide is a concave mirror, the light guide includes a concave reflective surface that faces the first wavelength light, reflects the first wavelength light, changes the beam angle distribution, and converges the beam. At this time, the light guide not only enables the first wavelength light to be transmitted with the second wavelength photosynthesized light to the outgoing light channel through reflection, but also functions to converge the light beam by changing the beam angle distribution of the first wavelength light. It should be noted that the concave reflective surface of the light guide is a structure in which a metal reflective film is plated on a concave structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like. It can be understood that the function of the curved mirror is realized by the combination of two optical components, the plane mirror is used to change the direction of the first excitation light, and the lens is used to change the angular distribution of the first wavelength light. Using the combination of a flat mirror and a convex lens to replace the concave mirror, the first wavelength light can first pass through the convex lens and then enter the flat reflective surface, or the first wavelength light can be first reflected by the flat mirror and then transmitted through the convex lens .
图4示出了一个实施例中的波长转换装置的结构示意图。其中波长转换装置包括基板、波长转换材料层。其中基板和波长转换材料层之间还可包括 反射层，该反射层可以为基板的磨光表面、白色反射层或含银复合层。其中，反射层为基板的磨光表面时，波长转换装置的成本更低、结构更简单；当反射层为白色反射层时，对光的反射效率更高，且成本低；当反射层为含银复合层时，由于导热性好，使得波长转换材料层被激发时，效率更高。Fig. 4 shows a schematic structural diagram of a wavelength conversion device in an embodiment. The wavelength conversion device includes a substrate and a wavelength conversion material layer. Wherein, a reflective layer may also be included between the substrate and the wavelength conversion material layer, and the reflective layer may be a polished surface of the substrate, a white reflective layer or a silver-containing composite layer. Among them, when the reflective layer is the polished surface of the substrate, the cost of the wavelength conversion device is lower and the structure is simpler; when the reflective layer is a white reflective layer, the light reflection efficiency is higher and the cost is low; when the reflective layer contains In the case of the silver composite layer, due to the good thermal conductivity, the efficiency is higher when the wavelength conversion material layer is excited.
其中，基板为一轮盘结构(荧光色轮)，包括波长转换区段1101和非波长转换区段1102，波长转换区段1101和非波长转换区段1102在轮盘结构上呈扇或/和环形拼接排布，通过一驱动装置(如马达)驱动而绕轮盘中轴转动。波长转换装置11周期性转动以使得波长转换区段1101和非波长转换区段1102分时位于第一激发光的光路上，非波长转换区段1102反射第一激发光以得到第一波长光，波长转换区段1101受第一激发光的激发而产生第二波长光。在另一实施方式中，波长转换装置还可以为荧光色桶/色筒，包括沿桶/筒面环绕分布的波长转换区段和非波长转换区段，色桶/色筒绕其轴线方向旋转，以使不同区段依时序周期性处于第一激发光的照射下；或者，波长转换装置还可以为荧光色板，包括沿一直线方向依次排布的波长转换区段和非波长转换区段，色板沿该直线方向线性振动，以使不同区段依时序周期性处于第一激发光的照射下，从而时序出射第一波长光和第二波长光。The substrate is a roulette structure (fluorescent color wheel), including a wavelength conversion section 1101 and a non-wavelength conversion section 1102. The wavelength conversion section 1101 and the non-wavelength conversion section 1102 are fan or/and on the roulette structure. The circular splicing arrangement is driven by a driving device (such as a motor) to rotate around the central axis of the wheel. The wavelength conversion device 11 rotates periodically so that the wavelength conversion section 1101 and the non-wavelength conversion section 1102 are time-sharingly located on the optical path of the first excitation light, and the non-wavelength conversion section 1102 reflects the first excitation light to obtain the first wavelength light, The wavelength conversion section 1101 is excited by the first excitation light to generate second wavelength light. In another embodiment, the wavelength conversion device may also be a fluorescent color barrel/color barrel, which includes a wavelength conversion section and a non-wavelength conversion section distributed around the barrel/tube surface, and the color barrel/color barrel rotates around its axis. , So that different sections are periodically irradiated by the first excitation light in time sequence; or, the wavelength conversion device may also be a fluorescent color plate, including wavelength conversion sections and non-wavelength conversion sections arranged in a straight line. , The color plate linearly vibrates along the linear direction, so that different sections are periodically irradiated by the first excitation light in a time sequence, so that the first wavelength light and the second wavelength light are emitted in time sequence.
需要说明的是，波长转换区段1101可以是仅包含一种波长转换材料的区段，举例说明，可以是包含黄光波长转换区段、绿光波长转换区段或红光波长转换区段中的一种。在一实施例中，波长转换区段1101也可以是包含两种波长转换材料的区段，举例说明，可以是包含黄光波长转换区段、绿光波长转换区段或红光波长转换区段中的任意两种区段；可以理解的是，波长转换区段1101的区段是根据具体的发光装置所选择，本发明对此不进行限制，具体包括一种、两种及两种以上的颜色光波长转换区段都在本发明的保护范围。It should be noted that the wavelength conversion section 1101 may be a section containing only one wavelength conversion material. For example, it may include a yellow light wavelength conversion section, a green light wavelength conversion section or a red light wavelength conversion section. Kind of. In an embodiment, the wavelength conversion section 1101 may also be a section containing two wavelength conversion materials. For example, it may include a yellow light wavelength conversion section, a green light wavelength conversion section or a red light wavelength conversion section. It can be understood that the wavelength conversion section 1101 is selected according to the specific light-emitting device, and the present invention does not limit this, and specifically includes one, two or more The color light wavelength conversion sections are all within the protection scope of the present invention.
波长转换装置11的波长转换区段包括荧光材料层，该荧光材料层既可以是荧光粉-有机粘接剂层(通过硅胶、环氧树脂等有机粘接剂将分离的荧光粉粘结成层)，也可以是荧光粉-无机粘接剂层(通过玻璃等无机粘接剂将分离的荧光粉粘结成层)，还可以是荧光陶瓷(包括①以连续的陶瓷作为基质且陶瓷内分布着荧光粉颗粒的结构；②纯相陶瓷掺杂激活剂元素，如Ce掺杂的 YAG陶瓷；③在纯相陶瓷掺杂激活剂元素的基础上，在陶瓷内分散设置荧光粉颗粒)。在另一个实施方式中，波长转换区段包括量子点层，通过量子点材料实现光致发光功能。波长转换装置206可以只有一个波长转换区段(如黄色波长转换区段)，也可以有两个波长转换区段(如绿色波长转换区段和红色波长转换区段)，还可以包括两个以上波长转换区段。The wavelength conversion section of the wavelength conversion device 11 includes a fluorescent material layer, which can be either a fluorescent powder-organic adhesive layer (the separated fluorescent powder is bonded into a layer by an organic adhesive such as silica gel, epoxy resin, etc.) ), it can also be a phosphor-inorganic adhesive layer (the separated phosphor is bonded into a layer by an inorganic adhesive such as glass), or it can be a fluorescent ceramic (including ① using continuous ceramic as a matrix and distributed in the ceramic The structure of the phosphor particles; ②Pure phase ceramic doped with activator elements, such as Ce-doped YAG ceramic; ③On the basis of pure phase ceramic doped with activator elements, phosphor particles are dispersed in the ceramic). In another embodiment, the wavelength conversion section includes a quantum dot layer, and the photoluminescence function is realized by the quantum dot material. The wavelength conversion device 206 may have only one wavelength conversion section (such as a yellow wavelength conversion section), or may have two wavelength conversion sections (such as a green wavelength conversion section and a red wavelength conversion section), or may include more than two wavelength conversion sections. Wavelength conversion section.
非波长转换区段1102用于反射入射的第一激发光以得到第一波长光，非波长转换区段可以是圆环形的区段，也可以是扇形的区段，非波长转换区段的形状以具体的发光装置的光路设计而选择，此处不再鳌述。当第一激发光为蓝光时，非波长转换区段可实现对蓝光的反射，举例而言，非波长转换区段1102可以是实现镜面反射的金属反射层；也可以是实现散射的无机或有机漫反射层；还可以是实现反射蓝光的介质膜层，具体可以是反射蓝光的滤光片、二向色镜等光学膜层；总之，本发明对此不做限定，所有可实现对蓝光反射的材料或结构都在本发明保护范围内。The non-wavelength conversion section 1102 is used to reflect the incident first excitation light to obtain the first wavelength light. The non-wavelength conversion section may be a circular section or a fan-shaped section. The shape is selected based on the specific light path design of the light-emitting device, and will not be described here. When the first excitation light is blue light, the non-wavelength conversion zone can reflect blue light. For example, the non-wavelength conversion zone 1102 can be a metal reflective layer that achieves specular reflection; it can also be an inorganic or organic scattering Diffuse reflection layer; it can also be a medium film layer that reflects blue light, specifically it can be an optical film layer such as a filter that reflects blue light, a dichroic mirror, etc.; in short, the present invention does not limit this, and all can achieve blue light reflection The materials or structures of are all within the protection scope of the present invention.
需要说明的是，波长转换装置11可包括多组波长转换区和非波长转换区。例如，基板上依次包括波长转换区、非波长转换区、波长转换区、非波长转换区。基板为：金属或合金等导热材料组成的圆板，或为金属或合金等导热材料组成的扇区与承载非波长转换区的扇区组成的圆板，或为金属或合金等导热材料组成的扇区与承载非波长转换区的扇环组成的圆板。It should be noted that the wavelength conversion device 11 may include multiple sets of wavelength conversion areas and non-wavelength conversion areas. For example, the substrate includes a wavelength conversion area, a non-wavelength conversion area, a wavelength conversion area, and a non-wavelength conversion area in sequence. The substrate is: a circular plate composed of thermally conductive materials such as metal or alloy, or a circular plate composed of a sector composed of thermally conductive materials such as metal or alloy and a sector that carries the non-wavelength conversion zone, or composed of thermally conductive materials such as metal or alloy A circular plate composed of a sector and a sector ring carrying the non-wavelength conversion area.
图5示出了一个实施例中的滤光件的结构示意图，需要说明的是，滤光件不作为本发明发光装置的必要元件，增加滤光件可进一步提升出射光的纯度，进而提高色域，但在一激光光源和波长转换装置出射的光品质较好的情况下，可不需设置滤光件；Figure 5 shows a schematic structural diagram of the filter in an embodiment. It should be noted that the filter is not an essential element of the light-emitting device of the present invention. Adding the filter can further improve the purity of the emitted light, thereby improving the color. However, when the quality of the light emitted by a laser light source and wavelength conversion device is good, no filter is required;
滤光件22为一圆盘结构的滤光轮，包括修色透射区段2201和散射透射区段2202，修色透射区段2201为圆环状或扇形分布，散射透射区段2202为与图2波长转换装置的非波长转换区段匹配的圆环状或扇形分布；散射透射区段2202用于对第一波长光进行散射透射，使得第一波长光的发散角与第二波长光的发散角匹配；修色透射区段2201用于对第二波长光进行修色，使得透射过的第二波长光的色坐标符合发光装置的出射光要求，修色透射区段可 以通过设置波长滤光片来实现。修色透射区段2201可以是仅包含一种波长滤光片的区段，举例说明，可以是包含黄光波长滤光片的区段、绿光波长滤光片的区段或红光波长滤光片的区段中的一种。在一实施例中，修色透射区段2201也可以是包含两种波长滤光片的区段，举例说明，可以是包含黄光波长滤光片的区段、绿光波长滤光片的区段或红光波长滤光片中的任意两种区段，两种波长滤光片区段拼接成一修色透射区段；可以理解的是，修色透射区段2201的区段是根据具体的发光装置所选择，本发明对此不进行限制，具体包括一种、两种及两种以上的波长滤光片都在本发明的保护范围。滤光件22由一驱动装置(如马达)驱动而做周期性转动，使得滤光件22与波长转换装置11同步，以使滤光件22的各个区段与波长转换装置11的各个区段一一对应。The filter 22 is a filter wheel with a disc structure, and includes a color correction transmission section 2201 and a scattering transmission section 2202. The color correction transmission section 2201 is circular or fan-shaped. The scattering transmission section 2202 is shown in the figure 2 The non-wavelength conversion section of the wavelength conversion device matches the circular or fan-shaped distribution; the scattering transmission section 2202 is used to scatter and transmit the first wavelength light, so that the divergence angle of the first wavelength light and the divergence of the second wavelength light Angle matching; the color correction transmission section 2201 is used for color correction of the second wavelength light, so that the color coordinates of the transmitted second wavelength light meets the emission light requirements of the light emitting device, and the color correction transmission section can be set by setting the wavelength filter Film to achieve. The color correction transmission section 2201 may be a section including only one wavelength filter, for example, it may be a section including a yellow wavelength filter, a green wavelength filter, or a red wavelength filter. One of the segments of the light sheet. In an embodiment, the color correction transmission section 2201 may also be a section including two wavelength filters. For example, it may be a section including a yellow wavelength filter and a green wavelength filter. Segment or any two segments in the red wavelength filter, the two wavelength filter segments are spliced into a color correction transmission section; it is understandable that the color correction transmission section 2201 is based on specific The choice of the light-emitting device is not limited by the present invention, and specifically including one, two or more than two wavelength filters are within the protection scope of the present invention. The filter element 22 is driven by a driving device (such as a motor) to rotate periodically, so that the filter element 22 is synchronized with the wavelength conversion device 11, so that each section of the filter element 22 and each section of the wavelength conversion device 11 One to one correspondence.
可以理解，发光装置中的滤光轮可替换为散射元件。散射元件用于对第一波长光进行散射，使得第一波长光进入匀光元件时的发散角与第二波长光进入匀光元件时的发散角保持一致。在省略匀光元件的一些实施例中，散射元件用于对第一波长光进行散射，使得第一波长光进入一出射光通道时的发散角与第二波长光进入出射光通道时的发散角保持一致。It can be understood that the filter wheel in the light emitting device can be replaced with a scattering element. The scattering element is used to scatter the light of the first wavelength, so that the divergence angle when the light of the first wavelength enters the homogenizing element is consistent with the divergence angle of the light of the second wavelength entering the homogenizing element. In some embodiments where the homogenizing element is omitted, the scattering element is used to scatter the light of the first wavelength, so that the divergence angle when the light of the first wavelength enters an exit light channel and the divergence angle when the light of the second wavelength enters the exit light channel be consistent.
散射元件可设置于第一波长光和第二波长光共同经过的光通道上，散射元件周期性运动以用于对第一波长光进行散射而不用于对第二波长光进行散射。The scattering element may be arranged on the optical channel through which the light of the first wavelength and the light of the second wavelength pass together, and the scattering element is periodically moved to scatter the light of the first wavelength but not to scatter the light of the second wavelength.
第一波长光和第二波长光分时汇聚于光出射通道之前的位置；散射元件周期性运动，以使得波长转换装置出射第一波长光时运动至该汇聚的位置，且使得波长转换装置出射第二波长光时离开该汇聚的位置。The light of the first wavelength and the light of the second wavelength are time-divisionally condensed at a position before the light exit channel; the scattering element periodically moves, so that the wavelength conversion device moves to the converging position when the first wavelength light is emitted, and the wavelength conversion device emits The second wavelength light leaves the converging position.
可以理解，波长转换装置和滤光轮相互独立，分别由两个驱动装置驱动以进行周期性运动。It can be understood that the wavelength conversion device and the filter wheel are independent of each other, and are driven by two driving devices to perform periodic movement.
在一个实施例中，波长转换装置和滤光轮同轴设置，在驱动装置的驱动下绕同一旋转轴旋转。波长转换装置的非波长转换区段和波长转换区段围拼成第一圆环，滤光轮的散射透射区段和修色透射区段围拼成第二圆环，第一圆环的圆心和第二圆环的圆心均位于所述旋转轴上；所述非波长转换区段和所述散射透射区段设置于圆心角大小相同且相对的两个扇形内；以及所述波 长转换区段和所述修色透射区段设置于圆心角大小相同且相对的两个扇形内；所述第一激发光投射到所述波长转换装置上的光斑与所述第一波长光和第二波长光投射到所述滤光轮上的光斑能够由经过所述旋转轴的同一平面贯穿。In one embodiment, the wavelength conversion device and the filter wheel are coaxially arranged, and are driven by the driving device to rotate around the same rotation axis. The non-wavelength conversion section and the wavelength conversion section of the wavelength conversion device are combined to form a first ring, and the scattering transmission section and color correction transmission section of the filter wheel are combined to form a second ring, the center of the first ring The centers of the second ring and the second ring are located on the axis of rotation; the non-wavelength conversion section and the scattering transmission section are arranged in two opposite sectors with the same central angle; and the wavelength conversion section And the color correction transmission section are arranged in two sectors with the same and opposite central angle; the light spot projected by the first excitation light onto the wavelength conversion device is different from the first wavelength light and the second wavelength light The light spot projected on the filter wheel can be penetrated by the same plane passing through the rotation axis.
在一个实施中，波长转换装置的光入射面与滤光轮的光入射面位于同一平面。在另一个实施例中，波长转换装置的光入射面与滤光轮的光入射面位于另一平面。In one implementation, the light incident surface of the wavelength conversion device and the light incident surface of the filter wheel are located on the same plane. In another embodiment, the light incident surface of the wavelength conversion device and the light incident surface of the filter wheel are located on another plane.
图6示出了一个实施例中波长转换装置11和滤光轮22同轴设置的结构示意图。如图18所示，以波长转换装置11包括非波长转换区段1102、波长转换区段1101，以及滤光轮包括散射透射区段2202、修色透射区段2201。其中，非波长转换区段1102所在扇形的圆心角与散射透射区段2202所在扇形的圆心角相对且大小相同。波长转换区段1101所在的扇形的圆心角和修色透射区段2201的圆心角相对且大小相同。FIG. 6 shows a structural schematic diagram of the wavelength conversion device 11 and the filter wheel 22 coaxially arranged in an embodiment. As shown in FIG. 18, the wavelength conversion device 11 includes a non-wavelength conversion section 1102, a wavelength conversion section 1101, and the filter wheel includes a scattering transmission section 2202, a color correction transmission section 2201. Wherein, the central angle of the sector where the non-wavelength conversion section 1102 is located is opposite to the central angle of the sector where the scattering transmission section 2202 is located and has the same size. The central angle of the sector in which the wavelength conversion section 1101 is located and the central angle of the color correction transmission section 2201 are opposite and have the same size.
可以理解，发光装置还可以包括光轴校正元件，第一波长光和第二波长光可以由光引导件和光轴校正元件的共同作用而改变光束的传播方向，从而使得第一波长光的主光轴与第二波长光的主光轴重合。其中，光引导件反射或透射第一波长光，使得第一波长光的主光轴方向随之改变。It can be understood that the light-emitting device may further include an optical axis correction element, and the first wavelength light and the second wavelength light can change the propagation direction of the light beam by the interaction of the light guide and the optical axis correction element, so that the main light of the first wavelength light The axis coincides with the main optical axis of the second wavelength light. The light guide reflects or transmits the light of the first wavelength, so that the direction of the main optical axis of the light of the first wavelength changes accordingly.
可以理解，光轴校正元件可设置于第一波长光和第二波长光共同经过的光通道上，光轴校正元件可以是静态的光学元件，也可以是周期性运动的光学元件，光轴校正元件周期性运动以用于改变第一波长光的主光轴方向而不用于改变第二波长光的主光轴方向。在一个实施例中，第一波长光和第二波长光分时汇聚于一光出射通道之前的位置；光轴校正元件周期性运动，以使得波长转换装置出射第一波长光时运动至该汇聚的位置，且使得波长转换装置出射第二波长光时离开该汇聚的位置。It can be understood that the optical axis correction element can be arranged on the optical channel through which the first wavelength light and the second wavelength light pass together. The optical axis correction element can be a static optical element or a periodically moving optical element. The optical axis correction The element periodically moves to change the main optical axis direction of the first wavelength light but not to change the main optical axis direction of the second wavelength light. In one embodiment, the light of the first wavelength and the light of the second wavelength are time-divisionally condensed at a position before a light exit channel; the optical axis correction element periodically moves, so that the wavelength conversion device moves to the convergent when the light of the first wavelength is emitted. And make the wavelength conversion device leave the converging position when emitting the second wavelength light.
图7示出光轴校正元件701的结构示意图。光轴校正元件701包括第一面702和第二面703。第一面702上设置有微结构7021，微结构7021改变入射至其上的光束的行进方向，并使光束从第二面703出射。FIG. 7 shows a schematic diagram of the structure of the optical axis correction element 701. The optical axis correction element 701 includes a first surface 702 and a second surface 703. A microstructure 7021 is provided on the first surface 702, and the microstructure 7021 changes the traveling direction of the light beam incident thereon, and causes the light beam to exit from the second surface 703.
在一个实施例中，可以将光轴校正元件的第二面702与散射元件或滤光轮的透射散射区段叠加固定。In an embodiment, the second surface 702 of the optical axis correction element can be superimposed and fixed with the scattering element or the transmission scattering section of the filter wheel.
第一部分实施例：The first part of the embodiment:
如图8A所示，在一个实施例中，一种发光装置，包括第一光源201、光引导件204，其中光引导件包括第一光引导件204a和第二光引导件204b、收集透镜205、波长转换装置206、第一中继透镜207。其中：As shown in FIG. 8A, in one embodiment, a light emitting device includes a first light source 201, a light guide 204, wherein the light guide includes a first light guide 204a and a second light guide 204b, and a collection lens 205 , Wavelength conversion device 206, first relay lens 207. among them:
第一光源201发射第一激发光，第一激发光经过第一光引导件204a透射、并入射至收集透镜205，经收集透镜205收集后传输至波长转换装置206。在一个实施例中，第一光源201可以为蓝色激光器或蓝色激光阵列；第一激发光为蓝色激光。在另一个实施例中，第一光源201可以为发蓝光的LED，第一激发光为蓝色LED光。本发明对此不进行限制。The first light source 201 emits the first excitation light, the first excitation light is transmitted through the first light guide 204a, is incident on the collection lens 205, is collected by the collection lens 205, and is transmitted to the wavelength conversion device 206. In an embodiment, the first light source 201 may be a blue laser or a blue laser array; the first excitation light is a blue laser. In another embodiment, the first light source 201 may be a blue LED, and the first excitation light is blue LED light. The present invention does not limit this.
需要说明的是，在一实施例中，第一光源201和光引导件204之间设置有匀光装置202，如图8B所示，第一光源201出射的第一激发光经匀光装置202匀光后经第一光引导件204a透射、并入射至收集透镜205。It should be noted that, in one embodiment, a homogenization device 202 is provided between the first light source 201 and the light guide 204. As shown in FIG. 8B, the first excitation light emitted by the first light source 201 is homogenized by the homogenization device 202. The light is transmitted through the first light guide 204a and is incident on the collecting lens 205.
波长转换装置206包括非波长转换区段和波长转换区段。波长转换装置206周期性运动以使得非波长转换区段和波长转换区段分时位于第一激发光的光路上。非波长转换区段反射第一激发光以得到第一波长光。波长转换区段受第一激发光的激发而产生第二波长光。第一波长光由非波长转换区段反射后，经收集透镜205收集并传输至第二光引导件204b，第二光引导件204b反射第一波长光至第一中继透镜207。第二波长光产生后，经收集透镜206收集并传输至第一光引导件204a。第二光引导件204b具有透射第二波长光的特性，第二波长光的传输不受第二光引导件204b的影响。第一光引导件204a反射第二波长光至第一中继透镜207。第一中继透镜207分时收集第一波长光以及第二波长光，并分时将第一波长光和第二波长光传输至后续的光学***。其中：第一波长光经第二光引导件204b反射后其主光轴与第二波长光的主光轴重合。本发明中，光束的主光轴可以理解为光束的中心轴，主光轴的方向为光束前进的方向。The wavelength conversion device 206 includes a non-wavelength conversion section and a wavelength conversion section. The wavelength conversion device 206 periodically moves so that the non-wavelength conversion section and the wavelength conversion section are time-shared on the optical path of the first excitation light. The non-wavelength conversion section reflects the first excitation light to obtain the first wavelength light. The wavelength conversion section is excited by the first excitation light to generate the second wavelength light. After the first wavelength light is reflected by the non-wavelength conversion section, it is collected by the collecting lens 205 and transmitted to the second light guide 204b, and the second light guide 204b reflects the first wavelength light to the first relay lens 207. After the second wavelength light is generated, it is collected by the collecting lens 206 and transmitted to the first light guide 204a. The second light guide 204b has a characteristic of transmitting light of the second wavelength, and the transmission of the light of the second wavelength is not affected by the second light guide 204b. The first light guide 204a reflects the second wavelength light to the first relay lens 207. The first relay lens 207 collects the first wavelength light and the second wavelength light in time sharing, and transmits the first wavelength light and the second wavelength light to the subsequent optical system in time sharing. Wherein, the main optical axis of the light of the first wavelength after being reflected by the second light guide 204b coincides with the main optical axis of the light of the second wavelength. In the present invention, the main optical axis of the light beam can be understood as the central axis of the light beam, and the direction of the main optical axis is the direction in which the light beam advances.
本发明中，第一波长光的主光轴与第二波长光的主光轴重合，可以理解为不是绝对意义上的重合而是大致重合。本领域技术人员可以理解的，在本 发明所提供的技术方案的基础上，使得第一波长光的主光轴与第二波长光的主光轴平行且小于阈值的技术方案也属于本发明保护的范围。In the present invention, the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength, which can be understood as not overlapping in an absolute sense but substantially overlapping. Those skilled in the art can understand that, on the basis of the technical solution provided by the present invention, the technical solution that makes the main optical axis of the first wavelength light parallel to the main optical axis of the second wavelength light and smaller than the threshold also belongs to the protection of the present invention. Range.
本实施例中，第二光引导件204b位于第一光引导件204a反射的第二波长光的光路上，且第二光引导件204b接收的第一波长光的主光轴与该第一光引导件204a反射的第二波长光的主光轴汇聚于第二光引导件204b的反射面，且第二光引导件204b将其所接收的第一波长光沿第一光引导件204a反射的第二波长光的主光轴方向反射，从而使得第一波长光的主光轴与第二波长光的主光轴重合。In this embodiment, the second light guide 204b is located on the optical path of the light of the second wavelength reflected by the first light guide 204a, and the main optical axis of the light of the first wavelength received by the second light guide 204b and the first light The main optical axis of the second wavelength light reflected by the guide 204a converges on the reflective surface of the second light guide 204b, and the second light guide 204b reflects the first wavelength light it receives along the first light guide 204a. The light of the second wavelength is reflected in the direction of the main optical axis, so that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
本发明中，第一波长光的主光轴与第二波长光的主光轴汇聚于第二光引导件204b的反射面，可能理解为第一波长光的主光轴入射至第二光引导件204b的反射面的入射点与第二波长光的主光轴入射至第二光引导件204b的反射面的入射点之间的距离较近，例如，二者之间的距离小于阈值。In the present invention, the main optical axis of the first wavelength light and the main optical axis of the second wavelength light converge on the reflecting surface of the second light guide 204b, which may be understood as the main optical axis of the first wavelength light incident on the second light guide The distance between the incident point of the reflecting surface of the element 204b and the incident point of the second wavelength light incident on the reflecting surface of the second light guide 204b is relatively close, for example, the distance between the two is smaller than the threshold.
第二光引导件204b的反射面面积满足以下条件：足够大以使得第二光引导件204b的反射面能够在指定位置(即：第二光引导件204b接收的第一波长光的主光轴与该第一光引导件204a反射的第二波长光的主光轴汇聚的位置)接收并反射整束第一波长光，同时第二光引导件204b的反射面不影响第一激发光入射至收集透镜205。在一个实施例中，第二光引导件204b的反射面面积的大小可以适应于其所接收的第一波长光投射至其上的光斑大小，即与其所接收的第一波长光投影至其上的光斑相匹配，例如与其所接收的第一波长光投影至其上的光斑面积相等，以使得可以反射整束第一波长光。The area of the reflection surface of the second light guide 204b satisfies the following condition: it is large enough to enable the reflection surface of the second light guide 204b to be at a designated position (ie: the main optical axis of the first wavelength light received by the second light guide 204b The position where the main optical axis of the second wavelength light reflected by the first light guide 204a is converged) receives and reflects the entire beam of light of the first wavelength, while the reflective surface of the second light guide 204b does not affect the incidence of the first excitation light Collection lens 205. In one embodiment, the size of the reflective surface area of the second light guide 204b can be adapted to the size of the spot on which the received light of the first wavelength is projected, that is, the size of the light spot on which the received light of the first wavelength is projected onto it. The light spot matches with, for example, the area of the light spot onto which the received light of the first wavelength is projected, so that the entire beam of light of the first wavelength can be reflected.
本实施例，通过设置反射式的色轮可进一步减小发光装置的体积，且光引导件用于调整第一波长光的主光轴和第二波长光的主光轴重合，使得发光装置出射的光均匀性更好。In this embodiment, the volume of the light-emitting device can be further reduced by setting the reflective color wheel, and the light guide is used to adjust the main optical axis of the first wavelength light to coincide with the main optical axis of the second wavelength light, so that the light-emitting device emits light. The light uniformity is better.
进一步，本实施例的发光装置还包括滤光轮211和匀光元件212，如图8C所示，第一中继透镜207收集第一波长光和第二波长光后进入滤光轮211，滤光轮211包括散射透射区段和修色透射区段，散射透射区段用于对第一波长光进行散射，使得第一波长光的发散角与第二波长光的发散角保持一致，修色透射区段用于透射第二波长光；Further, the light emitting device of this embodiment further includes a filter wheel 211 and a light homogenizing element 212. As shown in FIG. 8C, the first relay lens 207 collects the first wavelength light and the second wavelength light and enters the filter wheel 211 to filter The light wheel 211 includes a scattering transmission section and a color correction transmission section. The scattering transmission section is used to scatter the first wavelength light so that the divergence angle of the first wavelength light is consistent with the divergence angle of the second wavelength light. The transmission section is used to transmit the second wavelength light;
滤光轮211周期性转动，以使得波长转换装置206出射第一波长光时散射透射区段位于第一波长光的光路上，以及使得波长转换装置206出射第二波长光时修色透射区段位于第二波长光的光路上。The filter wheel 211 rotates periodically, so that when the wavelength conversion device 206 emits the first wavelength light, the scattering transmission section is located on the optical path of the first wavelength light, and the wavelength conversion device 206 emits the second wavelength light when the color correction transmission section is Located on the optical path of the second wavelength light.
从滤光轮211出射后，第一波长光和第二波长光按照预定光斑大小成像于匀光元件212的入射面。匀光元件212内部形成出射光通道。匀光元件212用于对第一波长光和第二波长光进行匀光。After being emitted from the filter wheel 211, the first wavelength light and the second wavelength light are imaged on the incident surface of the light homogenizing element 212 according to a predetermined spot size. The light homogenizing element 212 forms an exit light channel. The homogenizing element 212 is used to homogenize the light of the first wavelength and the light of the second wavelength.
本实施例中，第二光引导件204b，可以为平面镜或曲面镜中的一种，如图3所示，可以理解的是，第二光引导件204b也可以是平面镜或曲面镜中的组合；其中平面射镜用于对入射的第一波长光进行反射，并透射第二波长光，平面镜不会改变入射的第一波长光光束的发散角，平面镜可以是滤光片/滤光膜/二向色片中的一种。In this embodiment, the second light guide 204b may be one of a flat mirror or a curved mirror, as shown in FIG. 3. It is understood that the second light guide 204b may also be a combination of a flat mirror or a curved mirror ; The plane mirror is used to reflect the incident first wavelength light and transmit the second wavelength light. The plane mirror will not change the divergence angle of the incident first wavelength light beam. The plane mirror can be a filter/filter film/ One of the dichroic films.
当第二光引导件204b为曲面镜时，第二光引导件204b可实现对第一波长光光束角分布的改变，具体来说，当第二光引导件204b为凸面镜时，此时第二光引导件204b包括一凸面反射面，该凸面反射面迎向第一波长光，将第一波长光反射，并改变光束角分布，对光束进行发散。此时第二光引导件204b的作用除了通过反射使得第一波长光能够与第二波长光主光轴重合外，另一作用在于通过改变第一波长光的光束角分布，对光束进行发散。需要说明的是，第二光引导件204b的凸面反射面在一凸面结构上镀制金属反射膜的结构。在其他实施方式中，也可以通过镀制介质反射膜等方式实现。When the second light guide 204b is a curved mirror, the second light guide 204b can change the angular distribution of the light beam of the first wavelength. Specifically, when the second light guide 204b is a convex mirror, the The two light guides 204b include a convex reflective surface, which faces the first wavelength light, reflects the first wavelength light, changes the beam angle distribution, and diverges the beam. At this time, the second light guide 204b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to diverge the light beam by changing the angular distribution of the light of the first wavelength. It should be noted that the convex reflective surface of the second light guide 204b is a structure in which a metal reflective film is plated on a convex structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
当第二光引导件204b为凹面镜时，此时第二光引导件204b包括一凹面反射面，该凹面反射面迎向第一波长光，将第一波长光反射，并改变光束角分布，对光束进行汇聚。此时第二光引导件204b的作用除了通过反射使得第一波长光能够与第二波长光主光轴重合外，另一作用在于通过改变第一波长光的光束角分布，对光束进行汇聚。需要说明的是，第二光引导件204b的凹面反射面在一凹面结构上镀制金属反射膜的结构。在其他实施方式中，也可以通过镀制介质反射膜等方式实现。When the second light guide 204b is a concave mirror, the second light guide 204b includes a concave reflective surface facing the first wavelength light, reflecting the first wavelength light, and changing the beam angle distribution. Converge the beam. At this time, the second light guide 204b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to converge the light by changing the angular distribution of the light of the first wavelength. It should be noted that the concave reflective surface of the second light guide 204b is a structure in which a metal reflective film is plated on a concave structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
需要说明的，本实施例还可以包括第二光源203，如图8D所示，第二光源203用于在波长转换装置206的波长转换区段位于第一激发光的光路上时 发射补偿光。可以理解的是，第二光源不作为本本实施主要元件，在发光装置的色域和亮度等光学特性较好的情况下，可以不设置第二光源。第一光引导件204a对于补偿光的穿透特性具有区域性，其包括一能够透射补偿光的透补区域，该区域以外的其它区域则具有反射补偿光的特性。该透补区域和该其它区域的面积可按照预定比例进行设置。在一个实施例中，可设置该透补区域的面积小于该其它区域的面积。补偿光经过该透补区域透射后入射至收集透镜205，并经收集透镜205收集后传输至波长转换装置206。波长转换区段上设置有波长转换材料以接收第一激发光而产生第二波长光，波长转换材料对补偿光具有散射作用。补偿光经散射后与第二波长光沿相同光路传输，进入至匀光元件212。补偿光传输过程中各光学元件对于补偿光的光学处理与对于第二波长光的光学处理相同；例如，滤光轮211的修色透射区段对补偿光也具有透射功能。在一个实施例中，补偿光从波长转换装置206出射后的主光轴与第二波长光从波长转换装置206出射后的主光轴重合。It should be noted that this embodiment may further include a second light source 203. As shown in FIG. 8D, the second light source 203 is used to emit compensation light when the wavelength conversion section of the wavelength conversion device 206 is located on the optical path of the first excitation light. It can be understood that the second light source is not used as the main element of this embodiment, and the second light source may not be provided when the light-emitting device has good optical characteristics such as color gamut and brightness. The first light guide 204a has regional characteristics for the penetrating characteristics of the compensation light, and includes a penetrating area capable of transmitting the compensation light, and other areas other than the area have the property of reflecting the compensation light. The area of the transparent area and the other area can be set according to a predetermined ratio. In one embodiment, the area of the transparent area can be set to be smaller than the area of the other areas. The compensation light is transmitted through the transparent region and then enters the collection lens 205, is collected by the collection lens 205 and then transmitted to the wavelength conversion device 206. The wavelength conversion section is provided with a wavelength conversion material to receive the first excitation light to generate the second wavelength light, and the wavelength conversion material has a scattering effect on the compensation light. After being scattered, the compensation light is transmitted along the same optical path as the second wavelength light and enters the homogenizing element 212. During the compensation light transmission process, the optical processing of each optical element for the compensation light is the same as the optical processing for the second wavelength light; for example, the color correction transmission section of the filter wheel 211 also has a transmission function for the compensation light. In an embodiment, the main optical axis of the compensation light emitted from the wavelength conversion device 206 coincides with the main optical axis of the second wavelength light emitted from the wavelength conversion device 206.
在一个实施例中，补偿光可以与第二波长光具有交叠的波长范围。例如，补偿光的波长范围区间是(a,b)，第二波长光的波长范围区间为(c,d)，其中c<b<d。在一个实施例中，补偿光的颜色可以与第二波长光相同或相近。补偿光可以用于补偿第二波长光的色调和亮度等中至少的一种。In one embodiment, the compensation light may have an overlapping wavelength range with the second wavelength light. For example, the wavelength range of the compensation light is (a, b), and the wavelength range of the second wavelength light is (c, d), where c<b<d. In an embodiment, the color of the compensation light may be the same or similar to the second wavelength light. The compensation light may be used to compensate for at least one of the hue and brightness of the second wavelength light.
在其它实施例中，若不需要补偿第二波长光，则用于发射补偿光的第二光源203也可以省略，本发明对此不进行限制。若省略用于发射补偿光的第二光源203，则第一光引导件204a可以不包含上述的透补区域。In other embodiments, if the second wavelength light does not need to be compensated, the second light source 203 for emitting the compensation light may also be omitted, which is not limited in the present invention. If the second light source 203 for emitting compensation light is omitted, the first light guide 204a may not include the aforementioned transparent region.
在一个实施例中，第一激发光的光学扩展量小于第二波长光的光学扩展量。In one embodiment, the optical extension of the first excitation light is smaller than the optical extension of the second wavelength light.
可以理解的是，各实施例中未描述的各光学元件的功能和特性以及光束的传输和光学处理都可参考其它实施例，即各实施例未描述的各光学元件都可以应用在其它实施例中，即可以在图8B的实施例上增加第二光源、滤光轮或/和匀光元件，在图8C的实施例上增加第二光源或/和匀光装置，在图8D的实施例上增加匀光装置、滤光轮或/和匀光元件，在此不作赘述。It can be understood that the functions and characteristics of the optical elements and the transmission and optical processing of the light beams that are not described in the embodiments can be referred to other embodiments, that is, the optical elements not described in the embodiments can be applied to other embodiments. In the embodiment of FIG. 8B, a second light source, filter wheel or/and light homogenizing element may be added to the embodiment of FIG. 8C, and a second light source or/and light homogenizing device may be added to the embodiment of FIG. 8C. In the embodiment of FIG. 8D The light homogenization device, filter wheel or/and light homogenization element are added to the above, which will not be repeated here.
第二部分实施例：The second part of the embodiment:
如图9所示，在一个实施例中，一种发光装置，包括第一光源201、光引导件204，其中光引导件包括第一光引导件204a和第二光引导件204b、收集透镜205、波长转换装置206、第一中继透镜207。As shown in FIG. 9, in one embodiment, a light emitting device includes a first light source 201, a light guide 204, wherein the light guide includes a first light guide 204a and a second light guide 204b, and a collection lens 205 , Wavelength conversion device 206, first relay lens 207.
与图8A-图8D所示的实施例不同的是：第一激发光经收集透镜205收集后，经第一光引导件204a透射后，并进一步入射至第二光引导件204b，经第二光引导件204b反射后，传输至第一中继透镜207。The difference from the embodiment shown in FIGS. 8A-8D is that the first excitation light is collected by the collecting lens 205, transmitted through the first light guide 204a, and further enters the second light guide 204b, and passes through the second light guide 204b. After the light guide 204b is reflected, it is transmitted to the first relay lens 207.
其中，第二光引导件204b位于第一光引导件204a反射的第二波长光的光路的反向延长路径上，且第二光引导件204b接收的第一波长光的主光轴与第一光引导件204b反射的第二波长光的主光轴的反向延长线汇聚于第二光引导件204b的反射面，且第二光引导件204b将其所接收的第一波长光沿第一光引导件204b反射的第二波长光的主光轴方向反射，从而使得第一波长光的主光轴与第二波长光的主光轴重合。The second light guide 204b is located on the reverse extension path of the light path of the second wavelength light reflected by the first light guide 204a, and the main optical axis of the first wavelength light received by the second light guide 204b is the same as the first The reverse extension of the main optical axis of the second wavelength light reflected by the light guide 204b converges on the reflective surface of the second light guide 204b, and the second light guide 204b moves the light of the first wavelength it receives along the first The light of the second wavelength reflected by the light guide 204b is reflected in the direction of the main optical axis, so that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
本发明中，第一波长光的主光轴与第二波长光的主光轴反向延长线汇聚于第二发光引导件204b的反射面，可以理解为第一波长光的主光轴入射至第二光引导件204b的反射面的入射点与第二波长光的主光轴反向延长线与第二光引导件204b的反射面的交点之间的距离较近，例如，二者之间的距离小于阈值。In the present invention, the main optical axis of the first wavelength light and the main optical axis of the second wavelength light are converged on the reflective surface of the second light-emitting guide 204b. This can be understood as the main optical axis of the first wavelength light incident on The distance between the point of incidence of the reflection surface of the second light guide 204b and the extension of the main optical axis of the second wavelength light and the intersection of the reflection surface of the second light guide 204b is relatively close, for example, between the two The distance is less than the threshold.
本实施例中未描述的各光学元件的功能和特性以及光束的传输和光学处理可参考第一部分实施例，即未描述的第一部分实施例的各光学元件都可以应用在本实施例中，在此不作赘述。The functions and characteristics of the optical elements and the transmission and optical processing of the light beams that are not described in this embodiment can refer to the first part of the embodiment, that is, the optical elements of the first part of the embodiment that are not described can be applied in this embodiment. This will not be repeated here.
第三部分实施例：The third part of the embodiment:
如图10所示，在一个实施例中，一种发光装置，包括第一光源201、第二光源203、补偿光引导件204c、收集透镜205、波长转换装置206、第一中继透镜207、激发光引导件209c1、激发光引导件209c2、激发光引导件209c3。As shown in FIG. 10, in one embodiment, a light emitting device includes a first light source 201, a second light source 203, a compensation light guide 204c, a collecting lens 205, a wavelength conversion device 206, a first relay lens 207, Excitation light guide 209c1, excitation light guide 209c2, excitation light guide 209c3.
与图8所示的实施例不同的是：The difference from the embodiment shown in Figure 8 is:
第一激发光经激发光引导件209c1反射至收集透镜205。The first excitation light is reflected to the collection lens 205 by the excitation light guide 209c1.
第二波长光从收集透镜205出射后，进一步由第一中继透镜207收集。激发光引导件209c1、激发光引导件209c2和激发光引导件209c3不影响第二波长光的传输。本实施例中，激发光引导件209c1、激发光引导件209c2和激发光引导件209c3都具有透射第二波长光的特性。而补偿光引导件204c具有反射补偿光的特性，当补偿光与第二波长光具有交叠的波长范围时，补偿光引导件204c会反射一部分第二波长光，该部分第二波长光因此而损失掉。After the second wavelength light is emitted from the collection lens 205, it is further collected by the first relay lens 207. The excitation light guide 209c1, the excitation light guide 209c2, and the excitation light guide 209c3 do not affect the transmission of the second wavelength light. In this embodiment, the excitation light guide 209c1, the excitation light guide 209c2, and the excitation light guide 209c3 all have the characteristic of transmitting light of the second wavelength. The compensation light guide 204c has the characteristic of reflecting compensation light. When the compensation light and the second wavelength light have overlapping wavelength ranges, the compensation light guide 204c will reflect a part of the second wavelength light, and this part of the second wavelength light will therefore be Lost.
第一波长光从收集透镜205出射后经激发光引导件209c2反射至激发光引导件209c3；激发光引导件209c3位于第二波长光的光路上，且激发光引导件209c3接收的第一波长光的主光轴与第二波长光的主光轴汇聚于激发光引导件209c3的反射面，且激发光引导件209c3将其所接收的第一波长光沿第二波长光的主光轴方向反射，从而使得第一波长光的主光轴与第二波长光的主光轴重合。补偿光引导件204c不影响第一波长光的传输，具有透射第一波长光的特性。The first wavelength light is emitted from the collecting lens 205 and reflected by the excitation light guide 209c2 to the excitation light guide 209c3; the excitation light guide 209c3 is located on the optical path of the second wavelength light, and the first wavelength light received by the excitation light guide 209c3 The main optical axis of the light and the main optical axis of the second wavelength light converge on the reflective surface of the excitation light guide 209c3, and the excitation light guide 209c3 reflects the light of the first wavelength it receives along the direction of the main optical axis of the second wavelength light , So that the main optical axis of the first wavelength light coincides with the main optical axis of the second wavelength light. The compensation light guide 204c does not affect the transmission of the first wavelength light, and has the characteristic of transmitting the first wavelength light.
激发光引导件209c1的反射面面积满足以下条件：足够大以使得激发光引导件209c1的反射面能够在指定位置接收并反射整束第一波长光，同时激发光引导件209c1的反射面不影响第一波长光入射至第一中继透镜207。在一个实施例中，激发光引导件209c1的反射面面积的大小可以适应于其所接收的第一波长光投射至其上的光斑大小，即与其所接收的第一波长光投影至其上的光斑相匹配，以使得可以反射整束第一波长光。类似的，激发光引导件209c2也不影响从激发光引导件209c3出射的第一波长光传输至第二中继透镜207，以及不影响第一波长光传输至激发光引导件209c1。以及类似的，激发光引导件209c3也不影响从收集透镜205出射的第一波长光传输至激发光引导件209c2，以及不影响第一波长光传输至激发光引导件209c1。第二光源203发射的补偿光经补偿光引导件204c的反射后，由收集透镜205收集。激发光引导件209c1、激发光引导件209c2和激发光引导件209c3不影响补偿光的传输。本实施例中，激发光引导件209c1、激发光引导件209c2和激发光引导件209c3都具有透射补偿光的特性。The reflective surface area of the excitation light guide 209c1 satisfies the following conditions: it is large enough so that the reflective surface of the excitation light guide 209c1 can receive and reflect the entire beam of light of the first wavelength at a designated position, while the reflective surface of the excitation light guide 209c1 does not affect The light of the first wavelength is incident on the first relay lens 207. In one embodiment, the size of the reflective surface area of the excitation light guide 209c1 can be adapted to the size of the spot on which the received first wavelength light is projected, that is, the size of the spot on which the received first wavelength light is projected. The light spots are matched, so that the entire beam of light of the first wavelength can be reflected. Similarly, the excitation light guide 209c2 does not affect the transmission of the first wavelength light emitted from the excitation light guide 209c3 to the second relay lens 207, and does not affect the transmission of the first wavelength light to the excitation light guide 209c1. And similarly, the excitation light guide 209c3 does not affect the transmission of the first wavelength light emitted from the collection lens 205 to the excitation light guide 209c2, and does not affect the transmission of the first wavelength light to the excitation light guide 209c1. The compensation light emitted by the second light source 203 is collected by the collection lens 205 after being reflected by the compensation light guide 204c. The excitation light guide 209c1, the excitation light guide 209c2, and the excitation light guide 209c3 do not affect the transmission of compensation light. In this embodiment, the excitation light guide 209c1, the excitation light guide 209c2, and the excitation light guide 209c3 all have the characteristic of transmitting compensation light.
在一些实施例中，若省略第二光源203，则相应地可以省略补偿光引导件204c。In some embodiments, if the second light source 203 is omitted, the compensation light guide 204c can be omitted accordingly.
在一个实施例中，补偿光引导件204c和激发光引导件209c1可以由整块区域分光片替代，该区域分光片包括第一区域和第二区域；该第一区域承担补偿光引导件204c的功能，具有与补偿光引导件204c相同的光学特性；该第二区域承担激发光引导件209c1的功能，具有与激发光引导件209c1相同的光学特性。可选的，该区域分光片还可包括第三区域，该第三区域连接第一区域和第二区域，第三区域能够透射第二波长光。In one embodiment, the compensation light guide 204c and the excitation light guide 209c1 can be replaced by a whole area beam splitter, which includes a first area and a second area; the first area is responsible for the compensation light guide 204c The function has the same optical characteristics as the compensation light guide 204c; the second area assumes the function of the excitation light guide 209c1, and has the same optical characteristics as the excitation light guide 209c1. Optionally, the regional beam splitter may further include a third area connecting the first area and the second area, and the third area can transmit light of the second wavelength.
本实施例中，补偿光引导件204c、激发光引导件209c1、激发光引导件209c2或激发光引导件209c3可以为平面镜或曲面镜中的一种，如图8B所示，但本实施例的各光引导件并不限于使用单个平面镜或曲面镜，其也可以是平面镜或曲面镜中的组合。具体的平面镜和曲面镜的光学功效可参照本实施例及第一部分实施例。In this embodiment, the compensation light guide 204c, the excitation light guide 209c1, the excitation light guide 209c2, or the excitation light guide 209c3 may be one of a flat mirror or a curved mirror, as shown in FIG. 8B, but in this embodiment Each light guide is not limited to using a single flat mirror or curved mirror, and it can also be a combination of flat mirrors or curved mirrors. The specific optical effects of the flat mirror and the curved mirror can refer to this embodiment and the first part of the embodiment.
本实施例中未描述的各光学元件的功能和特性以及光束的传输和光学处理可参考第一部分实施例，即未描述的第一部分实施例的各光学元件都可以应用在本实施例中，在此不作赘述。The functions and characteristics of the optical elements and the transmission and optical processing of the light beams that are not described in this embodiment can refer to the first part of the embodiment, that is, the optical elements of the first part of the embodiment that are not described can be applied in this embodiment. This will not be repeated here.
第四部分实施例：The fourth part of the embodiment:
如图11所示，在一个实施例中，一种发光装置，包括第一光源201、第二光源203、补偿光引导件204c、收集透镜205、波长转换装置206、第一中继透镜207、激发光引导件209d1、激发光引导件209d2、激发光引导件209d3。As shown in FIG. 11, in one embodiment, a light emitting device includes a first light source 201, a second light source 203, a compensation light guide 204c, a collecting lens 205, a wavelength conversion device 206, a first relay lens 207, Excitation light guide 209d1, excitation light guide 209d2, excitation light guide 209d3.
与图10所示的实施例不同的是：The difference from the embodiment shown in Figure 10 is:
第一激发光经激发光引导件209d1反射至收集透镜205。The first excitation light is reflected to the collection lens 205 by the excitation light guide 209d1.
第一波长光从收集透镜205出射后经激发光引导件209d2反射至激发光引导件209d3；激发光引导件209d3位于第二波长光的光路上，且激发光引导件209d3接收的第一波长光的主光轴与第二波长光的主光轴汇聚于激发光引导件209d3的反射面，且激发光引导件209d3将其所接收的第一波长光沿第二波长光的主光轴方向反射，从而使得第一波长光的主光轴与第二波长光的 主光轴重合。激发光引导件209d1、激发光引导件209d2和激发光引导件209d3不影响第二波长光以及补偿光的传输。本实施例中，激发光引导件209d1、激发光引导件209d2和激发光引导件209d3都具有透射第二波长光和补偿光的特性。The first wavelength light is emitted from the collection lens 205 and reflected by the excitation light guide 209d2 to the excitation light guide 209d3; the excitation light guide 209d3 is located on the optical path of the second wavelength light, and the first wavelength light received by the excitation light guide 209d3 The main optical axis of the main optical axis and the main optical axis of the second wavelength light converge on the reflective surface of the excitation light guide 209d3, and the excitation light guide 209d3 reflects the first wavelength light it receives along the main optical axis direction of the second wavelength light , So that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength. The excitation light guide 209d1, the excitation light guide 209d2, and the excitation light guide 209d3 do not affect the transmission of the second wavelength light and the compensation light. In this embodiment, the excitation light guide 209d1, the excitation light guide 209d2, and the excitation light guide 209d3 all have the characteristics of transmitting the second wavelength light and the compensation light.
在一个实施例中，可以下移图7所示的第二光源203的入射位置，并使得激发光引导件209d1、补偿光引导件204c和激发光引导件209d2位于同一平面。在一个实施例中，位于同一平面的激发光引导件209d1、补偿光引导件204c和激发光引导件209d2可以由整块的区域分光片替代；该区域分光片包括第一区域、第二区域和第三区域；该第一区域承担激发光引导件209d1的功能，具有与激发光引导件209d1相同的光学特性；该第二区域承担补偿光引导件204c的功能，具有与补偿光引导件204c相同的光学特性；该第三区域承担激发光引导件209d2的功能，具有与激发光引导件209d2相同的光学特性。可选的，该区域分光片还可包括第四区域，该第四区域连接第一区域、第二区域和第三区域，第四区域能够透射第二波长光。In one embodiment, the incident position of the second light source 203 shown in FIG. 7 can be moved down, and the excitation light guide 209d1, compensation light guide 204c, and excitation light guide 209d2 are located on the same plane. In one embodiment, the excitation light guide 209d1, compensation light guide 204c, and excitation light guide 209d2 located on the same plane can be replaced by a whole area beam splitter; the area beam splitter includes a first area, a second area, and The third area; the first area assumes the function of the excitation light guide 209d1 and has the same optical characteristics as the excitation light guide 209d1; the second area assumes the function of the compensation light guide 204c, and has the same function as the compensation light guide 204c The third area assumes the function of the excitation light guide 209d2 and has the same optical properties as the excitation light guide 209d2. Optionally, the area beam splitter may further include a fourth area connecting the first area, the second area, and the third area, and the fourth area can transmit light of the second wavelength.
本实施例中，补偿光引导件204c、激发光引导件209d1、激发光引导件209d2或激发光引导件209d3可以为平面镜或曲面镜中的一种，但本实施例的各光引导件并不限于使用单个平面镜或曲面镜，其也可以是平面镜或曲面镜中的组合。具体的平面镜和曲面镜的光学功效可参照本实施例及第一部分实施例。In this embodiment, the compensation light guide 204c, the excitation light guide 209d1, the excitation light guide 209d2, or the excitation light guide 209d3 can be one of a flat mirror or a curved mirror, but the light guides in this embodiment are not It is limited to using a single flat mirror or curved mirror, and it can also be a combination of flat mirrors or curved mirrors. The specific optical effects of the flat mirror and the curved mirror can refer to this embodiment and the first part of the embodiment.
本实施例中未描述的各光学元件的功能和特性以及光束的传输和光学处理可参考第三部分实施例，即未描述的第三部分实施例的各光学元件都可以应用在本实施例中在此不作赘述。The functions and characteristics of the optical elements and the transmission and optical processing of the light beams that are not described in this embodiment can refer to the third part of the embodiment, that is, the optical elements of the third part of the embodiment that are not described can be applied in this embodiment. I won't repeat them here.
第五部分实施例The fifth part of the embodiment
在图8～11所示的实施例中，第一激发光沿收集透镜205的非中心轴方向入射至收集透镜205，收集透镜205偏转第一激发光的主光轴，并将第一激发光传输至波长转换装置206。第一波长光从波长转换装置206出射后传输至收集透镜205，收集透镜偏转第一波长光的主光轴。In the embodiment shown in FIGS. 8 to 11, the first excitation light is incident on the collection lens 205 along the non-central axis direction of the collection lens 205, and the collection lens 205 deflects the main optical axis of the first excitation light and transfers the first excitation light Transmitted to the wavelength conversion device 206. The light of the first wavelength is emitted from the wavelength conversion device 206 and then transmitted to the collecting lens 205, which deflects the main optical axis of the light of the first wavelength.
其中：among them:
第一激发光入射至收集透镜205的方向与收集透镜205的中心轴方向不平行，收集透镜205的焦点位于波长转换装置206的非波长转换区段的反射面上且收集透镜205的中心轴垂直于该反射面。第一激发光的主光轴经由收集透镜205的透射入射至波长转换装置的光路与第一波长光的主光轴经由收集透镜205的收集来自波长转换装置的反射光路关于收集透镜205的中心轴对称。但是，本发明不应以此为限制。The direction of the first excitation light incident on the collection lens 205 is not parallel to the central axis direction of the collection lens 205, the focal point of the collection lens 205 is located on the reflection surface of the non-wavelength conversion section of the wavelength conversion device 206 and the central axis of the collection lens 205 is vertical On the reflective surface. The main optical axis of the first excitation light enters the optical path of the wavelength conversion device through the transmission of the collection lens 205 and the main optical axis of the first wavelength light is collected via the collection lens 205. The reflected light path from the wavelength conversion device is about the central axis of the collection lens 205 symmetry. However, the present invention should not be limited by this.
在其它实施例中，如图12所示，第一激发光入射至收集透镜205的方向与收集透镜205的中心轴方向可以不平行，收集透镜205的焦点可以不位于波长转换装置206的非波长转换区段的反射面上。In other embodiments, as shown in FIG. 12, the direction of the first excitation light incident on the collection lens 205 and the central axis of the collection lens 205 may not be parallel, and the focus of the collection lens 205 may not be located at the non-wavelength of the wavelength conversion device 206. The reflective surface of the conversion section.
在图8～11所示的实施例中，第二光源203发射的补偿光沿收集透镜205的中心轴入射至收集透镜205，并维持该方向入射至波长转换装置206，并与第一激发光汇聚于波长转换装置206。补偿光经波长转换装置206的波长转换区段上设置的波长转换材料散射后，形成朗伯光的形式出射；以及第二波长光也以朗伯光的形式出射。第二波长光的主光轴与散射后的补偿光的主光轴重合。In the embodiment shown in FIGS. 8 to 11, the compensation light emitted by the second light source 203 enters the collection lens 205 along the central axis of the collection lens 205, and is incident to the wavelength conversion device 206 in this direction, and interacts with the first excitation light. Converged in the wavelength conversion device 206. After the compensation light is scattered by the wavelength conversion material provided on the wavelength conversion section of the wavelength conversion device 206, it is emitted in the form of Lambertian light; and the second wavelength light is also emitted in the form of Lambertian light. The main optical axis of the second wavelength light coincides with the main optical axis of the scattered compensation light.
在其它实施例中，第二光源203发射的补偿光可以沿收集透镜205的非中心轴方向入射至收集透镜205；本发明对此不进行限制。In other embodiments, the compensation light emitted by the second light source 203 may be incident on the collection lens 205 along the non-central axis direction of the collection lens 205; the present invention is not limited to this.
本实施例中未描述的各光学元件的功能和特性以及光束的传输和光学处理可参考第一部分实施例、第二部分实施例、第三部分实施例、第四部分实施例，即未描述的第一部分实施例、第二部分实施例、第三部分实施例、第四部分实施例的各光学元件都可以应用在本实施例中在此不作赘述。The functions and characteristics of the optical elements and the transmission and optical processing of the optical components not described in this embodiment can refer to the first part of the embodiment, the second part of the embodiment, the third part of the embodiment, and the fourth part of the embodiment, that is, the undescribed The optical elements of the first part of the embodiment, the second part of the embodiment, the third part of the embodiment, and the fourth part of the embodiment can all be applied in this embodiment, and will not be repeated here.
第六部分实施例：The sixth part of the embodiment:
如图13所示，在一个实施例中，一种发光装置，包括第一光源201、第二光源203、光引导件204，其中光引导件204包括第一光引导件204a和第二光引导件204b、收集透镜205、波长转换装置206、第一中继透镜307、反射元件308、第二中继透镜310。As shown in FIG. 13, in one embodiment, a light emitting device includes a first light source 201, a second light source 203, and a light guide 204, wherein the light guide 204 includes a first light guide 204a and a second light guide The component 204b, the collection lens 205, the wavelength conversion device 206, the first relay lens 307, the reflective element 308, and the second relay lens 310.
与图8所示的实施例不同的是：第一中继透镜307将收集的第一波长光和第二波长光传输至反射元件308，反射元件308进一步将第一波长光和第二波长光反射至第二中继透镜310，第二中继透镜310收集第一波长光以及第二波长光。The difference from the embodiment shown in FIG. 8 is that the first relay lens 307 transmits the collected first wavelength light and second wavelength light to the reflective element 308, and the reflective element 308 further transmits the first wavelength light and the second wavelength light. Reflected to the second relay lens 310, the second relay lens 310 collects the first wavelength light and the second wavelength light.
反射元件308反射第一波长光和第二波长光，在一实施例中，反射元件308为一具有光反射功效的光学元件，例如，反射镜等。在其它实施例中，该反射元件308相当于一第一光引导件和第二光引导件叠加设置，该第二光引导件具有反射第一波长光的特性，该第一光引导件具有反射第二波长光且透射第一波长光的特性。The reflective element 308 reflects the light of the first wavelength and the light of the second wavelength. In one embodiment, the reflective element 308 is an optical element with a light reflection function, such as a mirror. In other embodiments, the reflective element 308 is equivalent to a first light guide and a second light guide superimposed, the second light guide has the characteristic of reflecting light of the first wavelength, and the first light guide has a reflective The characteristics of second wavelength light and transmission of first wavelength light.
类似的，反射元件308也可相当于一第二光引导件与一第一光引导件叠加设置，该第二光引导件具有反射第一波长光且透射第二波长光的特性，该第一光引导件具有反射第二波长光的特性。Similarly, the reflective element 308 can also be equivalent to a second light guide and a first light guide superimposed, the second light guide has the characteristics of reflecting the first wavelength light and transmitting the second wavelength light, the first The light guide has the characteristic of reflecting light of the second wavelength.
其中，该第一光引导件的反射面面积大小可与反射元件308的反射面面积大小相当。而该第二光引导件的反射面面积可以小于反射元件308的反射面面积大小，也可以适应于其所接收的第一波长光的入射光斑的大小，以能够接收并反射整束第一波长光。在一个实施例中，第一波长光的光学扩展量小于第二波长光的光学扩展量；该第二光引导件的反射面面积小于该第一光引导件的反射面面积。The area of the reflective surface of the first light guide can be equivalent to the area of the reflective surface of the reflective element 308. The reflective surface area of the second light guide can be smaller than the reflective surface area of the reflective element 308, and can also be adapted to the size of the incident spot of the first wavelength light it receives, so as to be able to receive and reflect the entire first wavelength. Light. In one embodiment, the optical extension of the first wavelength light is smaller than the optical extension of the second wavelength light; the reflective surface area of the second light guide is smaller than the reflective surface area of the first light guide.
本实施例中，第二光引导件204b，可以为平面镜或曲面镜中的一种，可以理解的是，第二光引导件204b也可以是平面镜或曲面镜中的组合；其中平面射镜用于对入射的第一波长光进行反射，并透射第二波长光，平面镜不会改变入射的第一波长光光束的发散角，平面镜可以是滤光片/滤光膜/二向色片中的一种。In this embodiment, the second light guide 204b can be a flat mirror or a curved mirror. It is understood that the second light guide 204b can also be a combination of a flat mirror or a curved mirror; To reflect the incident light of the first wavelength and transmit the light of the second wavelength, the plane mirror will not change the divergence angle of the incident light beam of the first wavelength. The plane mirror can be a filter/filter film/dichroic One kind.
当第二光引导件204b为曲面镜时，第二光引导件204b可实现对第一波长光光束角分布的改变，具体来说，当第二光引导件204b为凸面镜时，此时第二光引导件204b包括一凸面反射面，该凸面反射面迎向第一波长光，将第一波长光反射，并改变光束角分布，对光束进行发散。此时第二光引导件204b的作用除了通过反射使得第一波长光能够与第二波长光主光轴重合外，另一 作用在于通过改变第一波长光的光束角分布，对光束进行发散。需要说明的是，第二光引导件204b的凸面反射面在一凸面结构上镀制金属反射膜的结构。在其他实施方式中，也可以通过镀制介质反射膜等方式实现。When the second light guide 204b is a curved mirror, the second light guide 204b can change the angular distribution of the light beam of the first wavelength. Specifically, when the second light guide 204b is a convex mirror, the The two light guides 204b include a convex reflective surface, which faces the first wavelength light, reflects the first wavelength light, changes the beam angle distribution, and diverges the beam. At this time, the second light guide 204b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to diverge the light beam by changing the angular distribution of the light of the first wavelength. It should be noted that the convex reflective surface of the second light guide 204b is a structure in which a metal reflective film is plated on a convex structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
当第二光引导件204b为凹面镜时，此时第二光引导件204b包括一凹面反射面，该凹面反射面迎向第一波长光，将第一波长光反射，并改变光束角分布，对光束进行汇聚。此时第二光引导件204b的作用除了通过反射使得第一波长光能够与第二波长光主光轴重合外，另一作用在于通过改变第一波长光的光束角分布，对光束进行汇聚。需要说明的是，第二光引导件204b的凹面反射面在一凹面结构上镀制金属反射膜的结构。在其他实施方式中，也可以通过镀制介质反射膜等方式实现。When the second light guide 204b is a concave mirror, the second light guide 204b includes a concave reflective surface facing the first wavelength light, reflecting the first wavelength light, and changing the beam angle distribution. Converge the beam. At this time, the second light guide 204b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to converge the light by changing the angular distribution of the light of the first wavelength. It should be noted that the concave reflective surface of the second light guide 204b is a structure in which a metal reflective film is plated on a concave structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
本实施例中，还包括第二光源203，第二光源203用于在波长转换装置206的波长转换区段位于第一激发光的光路上时发射补偿光。第一光引导件204a对于补偿光的穿透特性具有区域性，其包括一能够透射补偿光的透补区域，该区域以外的其它区域则具有反射补偿光的特性。该透补区域和该其它区域的面积可按照预定比例进行设置。在一个实施例中，可设置该透补区域的面积小于该其它区域的面积。补偿光经过该透补区域透射后入射至收集透镜205，并经收集透镜205收集后传输至波长转换装置206。波长转换区段上设置有波长转换材料以接收第一激发光而产生第二波长光，波长转换材料对补偿光具有散射作用。补偿光经散射后与第二波长光沿相同光路传输。补偿光传输过程中各光学元件对于补偿光的光学处理与对于第二波长光的光学处理相同；补偿光从波长转换装置206出射后的主光轴与第二波长光从波长转换装置206出射后的主光轴重合。In this embodiment, a second light source 203 is further included, and the second light source 203 is configured to emit compensation light when the wavelength conversion section of the wavelength conversion device 206 is located on the optical path of the first excitation light. The first light guide 204a has regional characteristics for the penetrating characteristics of the compensation light, and includes a penetrating area capable of transmitting the compensation light, and other areas other than the area have the property of reflecting the compensation light. The area of the transparent area and the other area can be set according to a predetermined ratio. In one embodiment, the area of the transparent area can be set to be smaller than the area of the other areas. The compensation light is transmitted through the transparent region and then enters the collection lens 205, is collected by the collection lens 205 and then transmitted to the wavelength conversion device 206. The wavelength conversion section is provided with a wavelength conversion material to receive the first excitation light to generate the second wavelength light, and the wavelength conversion material has a scattering effect on the compensation light. The compensation light is scattered and transmitted along the same optical path as the second wavelength light. In the compensation light transmission process, the optical processing of each optical element for the compensation light is the same as the optical processing for the second wavelength light; the main optical axis of the compensation light after the wavelength conversion device 206 is emitted and the second wavelength light after the wavelength conversion device 206 is emitted The main optical axis coincides.
在一个实施例中，补偿光可以与第二波长光具有交叠的波长范围。例如，补偿光的波长范围区间是(a,b)，第二波长光的波长范围区间为(c,d)，其中c<b<d。在一个实施例中，补偿光的颜色可以与第二波长光相同或相近。补偿光可以用于补偿第二波长光的色调和亮度等中至少的一种。In one embodiment, the compensation light may have an overlapping wavelength range with the second wavelength light. For example, the wavelength range of the compensation light is (a, b), and the wavelength range of the second wavelength light is (c, d), where c<b<d. In an embodiment, the color of the compensation light may be the same or similar to the second wavelength light. The compensation light may be used to compensate for at least one of the hue and brightness of the second wavelength light.
在其它实施例中，若不需要补偿第二波长光，则用于发射补偿光的第二光源203也可以省略，本发明对此不进行限制。若省略用于发射补偿光的第二光源203，则第一光引导件204a可以不包含上述的透补区域。In other embodiments, if the second wavelength light does not need to be compensated, the second light source 203 for emitting the compensation light may also be omitted, which is not limited in the present invention. If the second light source 203 for emitting compensation light is omitted, the first light guide 204a may not include the aforementioned transparent region.
在一个实施例中，第一波长光的光学扩展量小于第二波长光的光学扩展量。In one embodiment, the optical extension of the first wavelength light is smaller than the optical extension of the second wavelength light.
本实施例中未描述的各光学元件的功能和特性以及光束的传输和光学处理可参考第一部分实施例，在此不作赘述。The functions and characteristics of the optical elements and the transmission and optical processing of the light beams that are not described in this embodiment can be referred to the first part of the embodiment, which will not be repeated here.
第六部分实施例基于第一部分实施例所做的改变同样可运用于第二至五部分实施例，在此不作赘述。The changes made in the sixth part of the embodiment based on the first part of the embodiment can also be applied to the second to fifth parts of the embodiment, and will not be repeated here.
第七部分实施例Seventh embodiment
如图14A所示，在一个实施例中，一种发光装置，包括第一光源201、第二光源203、区域分光片404a、收集透镜205、波长转换装置206、第一中继透镜307、第一光引导件408a、第二光引导件408b、第二中继透镜310。As shown in FIG. 14A, in one embodiment, a light emitting device includes a first light source 201, a second light source 203, a regional beam splitter 404a, a collection lens 205, a wavelength conversion device 206, a first relay lens 307, and a second light source 203. A light guide 408a, a second light guide 408b, and a second relay lens 310.
其中，如图14B所示，区域分光片404a包括：第一区域404a1、透补区域404a2、第三区域404a3和第四区域404a4。第一区域404a1具有透射第一激发光反射第二波长光以及补偿光的特性。透补区域404a2具有透射补偿光的特性，若补偿光与第二波长光具有交叠的波长范围，则透补区域404a2还透射第二波长光中交叠波长范围内的光；本发明不限制透补区域404a2对于第二波长光中交叠波长范围外的光的穿透特性；优选的，透补区域404a2可以反射第二波长光中交叠波长范围外的光。第三区域404a3具有反射第一波长光、第二波长光及补偿光的特性。第四区域404a4具有反射第二波长光和补偿光的特性。本发明不限制第四区域404a4对于第一波长光的穿透特性。当第四区域404a4对于第一波长光具有透射特性时可以与第一区域404a1融合为一个区域；当第四区域404a4对于第一波长光具有反射特性时可以与第三区域404a3融合为一个区域。Wherein, as shown in FIG. 14B, the regional light splitting sheet 404a includes a first area 404a1, a transparent area 404a2, a third area 404a3, and a fourth area 404a4. The first region 404a1 has the characteristics of transmitting the first excitation light, reflecting the second wavelength light and compensating light. The transparent area 404a2 has the characteristic of transmitting compensation light. If the compensation light and the second wavelength light have overlapping wavelength ranges, the transparent area 404a2 also transmits light in the overlapping wavelength range of the second wavelength light; the invention is not limited The transparent and complementary area 404a2 has the penetrating characteristics of the light outside the overlapping wavelength range in the second wavelength light; preferably, the transparent and complementary area 404a2 can reflect the light outside the overlapping wavelength range in the second wavelength light. The third area 404a3 has characteristics of reflecting light of the first wavelength, light of the second wavelength, and compensation light. The fourth area 404a4 has characteristics of reflecting the second wavelength light and compensating light. The present invention does not limit the penetration characteristics of the fourth region 404a4 to the first wavelength light. When the fourth area 404a4 has a transmission characteristic for the first wavelength light, it can be merged with the first area 404a1 into one area; when the fourth area 404a4 has a reflection characteristic for the first wavelength light, it can be merged with the third area 404a3 into one area.
第三区域404a3的反射面面积满足以下条件：足够大以使得第三区域404a3的反射面能够接收并反射整束第一波长光，同时第三区域404a3的反射 面不影响第一波长光入射至收集透镜205。在一个实施例中，第三区域404a3的反射面面积的大小可以适应于其所接收的第一波长光投射至其上的光斑大小，即与其所接收的第一波长光投影至其上的光斑相匹配，例如与其所接收的第一波长光投影至其上的光斑面积相等，以使得可以反射整束第一波长光。The reflective surface area of the third region 404a3 satisfies the following conditions: it is large enough so that the reflective surface of the third region 404a3 can receive and reflect the entire beam of light of the first wavelength, while the reflective surface of the third region 404a3 does not affect the incidence of light of the first wavelength. Collection lens 205. In one embodiment, the size of the reflective surface area of the third region 404a3 can be adapted to the size of the spot on which the received first wavelength light is projected, that is, the spot on which the received first wavelength light is projected. Matching, for example, equal to the spot area on which the received light of the first wavelength is projected, so that the entire beam of light of the first wavelength can be reflected.
第一激发光经匀光装置202匀光后，进一步经第一区域404a1透射，并入射至收集透镜205，经收集透镜205收集后传输至波长转换装置206。After the first excitation light is homogenized by the homogenization device 202, it is further transmitted through the first region 404a1, and is incident on the collection lens 205, collected by the collection lens 205, and transmitted to the wavelength conversion device 206.
第一激发光经波长转换装置206的非波长转换区段反射后从收集透镜205出射，经第三区域404a3反射至第一中继透镜307，经第一中继透镜307收集并传输至第二光引导件408b，进一步由第二光引导件408b反射至第二中继透镜310，经第二中继透镜310收集后传输至后续的光学***。其中，第一光引导件408a不影响第一波长光的传输，对第一波长光具有透射特性。The first excitation light is reflected by the non-wavelength conversion section of the wavelength conversion device 206 and then exits the collection lens 205, is reflected by the third region 404a3 to the first relay lens 307, is collected by the first relay lens 307 and transmitted to the second The light guide 408b is further reflected by the second light guide 408b to the second relay lens 310, collected by the second relay lens 310, and transmitted to the subsequent optical system. Wherein, the first light guide 408a does not affect the transmission of the light of the first wavelength, and has transmission characteristics for the light of the first wavelength.
第二波长光从收集透镜205出射后，经区域分光片404a反射至第一中继透镜307。其中，入射至区域分光片404a的透补区域404a2的第二波长光至少有一部分被透射而损失掉，该部分为第二波长光与补偿光的交叠波长范围内的光。在一个实施例中，透补区域404a2还具有反射第二波长光中与补偿光的交叠波长范围外的光的特性，从而第二波长光中与补偿光的交叠波长范围外的光被透补区域404a2反射而得到利用。第一中继透镜307将收集到的第二波长光传输至第一光引导件408a，第一光引导件408a进一步将第二波长光反射至第二中继透镜310，以及第二中继透镜310进一步将第二波长光进行收集以及传输至后续的光学***。After the second wavelength light is emitted from the collecting lens 205, it is reflected by the regional beam splitter 404a to the first relay lens 307. Wherein, at least a part of the second wavelength light incident on the transparent region 404a2 of the regional beam splitter 404a is transmitted and lost, and this part is light in the overlapping wavelength range of the second wavelength light and the compensation light. In one embodiment, the transparent area 404a2 also has the characteristic of reflecting light outside the overlapping wavelength range of the compensation light in the second wavelength light, so that the light outside the overlapping wavelength range of the second wavelength light and the compensation light is The transparent area 404a2 reflects and is utilized. The first relay lens 307 transmits the collected light of the second wavelength to the first light guide 408a, and the first light guide 408a further reflects the light of the second wavelength to the second relay lens 310, and the second relay lens 310 further collects and transmits the second wavelength light to the subsequent optical system.
其中，第二光引导件408b位于第一光引导件408a反射的第二波长光的光路的反向延长路径上，且第二光引导件408b接收的第一波长光的主光轴与第一光引导件408a反射的第二波长光的主光轴的反向延长线汇聚于第二光引导件408b的反射面，且第二光引导件408b将其所接收的第一波长光沿第一光引导件408a反射的第二波长光的主光轴方向反射，从而使得第一波长光的主光轴与第二波长光的主光轴重合。The second light guide 408b is located on the reverse extension path of the light path of the second wavelength light reflected by the first light guide 408a, and the main optical axis of the first wavelength light received by the second light guide 408b is the same as the first The reverse extension of the main optical axis of the second wavelength light reflected by the light guide 408a converges on the reflective surface of the second light guide 408b, and the second light guide 408b moves the light of the first wavelength it receives along the first The light of the second wavelength reflected by the light guide 408a is reflected in the direction of the main optical axis, so that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
区域分光片404a包括第一区域404a1、透补区域404a2、第三区域404a3和第四区域404a4。该区域分光片404a相当于一第二光引导件与一第一光引导件叠加设置。The area beam splitter 404a includes a first area 404a1, a transparent area 404a2, a third area 404a3, and a fourth area 404a4. The regional light splitting sheet 404a is equivalent to a second light guide and a first light guide superimposed.
该第二光引导件与该第一光引导件按照第一波长光先到达该第二光引导件的顺序叠加。该第二光引导件具有反射第一波长光且透射第二波长光的特性。该第一光引导件具有反射第二波长光且透射激发光的特性。第一波长光透射该第一光引导件的叠加区域以外的区域；第一波长光经该第二光引导件反射；第二波长光则经该第一光引导件反射，其中，第二波长光入射至该第二光引导件的部分透射该第二光引导件。或者：The second light guide and the first light guide are superimposed in the order in which the light of the first wavelength first reaches the second light guide. The second light guide has the characteristics of reflecting light of the first wavelength and transmitting light of the second wavelength. The first light guide has the characteristics of reflecting the second wavelength light and transmitting the excitation light. The light of the first wavelength transmits the area outside the overlapping area of the first light guide; the light of the first wavelength is reflected by the second light guide; the light of the second wavelength is reflected by the first light guide, wherein the second wavelength The part of the light incident on the second light guide transmits the second light guide. or:
该第二光引导件与该第一光引导件按照第一波长光先到达该第一引导件的顺序叠加。该第二光引导件具有反射第一波长光的特性，该第一光引导件具有反射第二波长光且透射激发光的特性。第一波长光透射该第一光引导件的叠加区域以外的区域；第一波长光透射该第一光引导件后，经该第二光引导件反射。The second light guide and the first light guide are superimposed in an order in which light of the first wavelength first reaches the first guide. The second light guide has a characteristic of reflecting light of a first wavelength, and the first light guide has a characteristic of reflecting light of a second wavelength and transmitting excitation light. The light of the first wavelength transmits the area other than the overlapping area of the first light guide; the light of the first wavelength transmits the first light guide, and then is reflected by the second light guide.
其中，该第一光引导件的面积大小可与区域分光片404a的面积大小相当。而该第二光引导件的面积可以等于第一区域404a1的面积大小，也可以适应于其所接收的第一波长光的入射光斑的大小，以能够接收并反射整束第一波长光；或者，该第二光引导件的面积可以比第一波长光的入射光斑更大，同时该第二光引导件不影响第一波长光的传输；因为如果该第二光引导件无限定的延伸面积，则会阻拦第一波长光的传输。在一个实施例中，第一波长光的光学扩展量小于第二波长光的光学扩展量；该第二光引导件的反射面面积小于该第一光引导件的反射面面积。Wherein, the area size of the first light guide may be equivalent to the area size of the area beam splitter 404a. The area of the second light guide may be equal to the area of the first area 404a1, or may be adapted to the size of the incident spot of the first wavelength light received by it, so as to be able to receive and reflect the entire beam of the first wavelength light; or , The area of the second light guide can be larger than the incident spot of the first wavelength light, and the second light guide does not affect the transmission of the first wavelength light; because if the second light guide has no limited extension area , It will block the transmission of the first wavelength light. In one embodiment, the optical extension of the first wavelength light is smaller than the optical extension of the second wavelength light; the reflective surface area of the second light guide is smaller than the reflective surface area of the first light guide.
另外，对应于透补区域404a2的光学特性，只需要在该第一光引导件上相对应的位置设置光学特性相同于透补区域404a2的区域即可。而在省略了第二光源203的实施例中，则不需要在该第二波长光引导件上设置这样的区域。In addition, corresponding to the optical characteristics of the transparent area 404a2, it is only necessary to provide an area with the same optical characteristics as the transparent area 404a2 at a corresponding position on the first light guide. However, in the embodiment where the second light source 203 is omitted, there is no need to provide such a region on the second wavelength light guide.
本实施例中，第二光引导件408b，可以为平面镜或曲面镜中的一种，可以理解的是，第二光引导件408b也可以是平面镜或曲面镜中的组合；其中平 面射镜用于对入射的第一波长光进行反射，并透射第二波长光，平面镜不会改变入射的第一波长光光束的发散角，平面镜可以是滤光片/滤光膜/二向色片中的一种。In this embodiment, the second light guide 408b may be one of a flat mirror or a curved mirror. It is understood that the second light guide 408b may also be a combination of a flat mirror or a curved mirror; where a flat mirror is used To reflect the incident light of the first wavelength and transmit the light of the second wavelength, the plane mirror will not change the divergence angle of the incident light beam of the first wavelength. The plane mirror can be a filter/filter film/dichroic One kind.
当第二光引导件408b为曲面镜时，第二光引导件408b可实现对第一波长光光束角分布的改变，具体来说，当第二光引导件408b为凸面镜时，此时第二光引导件408b包括一凸面反射面，该凸面反射面迎向第一波长光，将第一波长光反射，并改变光束角分布，对光束进行发散。此时第二光引导件408b的作用除了通过反射使得第一波长光能够与第二波长光主光轴重合外，另一作用在于通过改变第一波长光的光束角分布，对光束进行发散。需要说明的是，第二光引导件408b的凸面反射面在一凸面结构上镀制金属反射膜的结构。在其他实施方式中，也可以通过镀制介质反射膜等方式实现。When the second light guide 408b is a curved mirror, the second light guide 408b can change the angular distribution of the light beam of the first wavelength. Specifically, when the second light guide 408b is a convex mirror, the The two light guides 408b include a convex reflective surface that faces the first wavelength light, reflects the first wavelength light, changes the beam angle distribution, and diverges the beam. At this time, the second light guide 408b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength through reflection, but also functions to diverge the light by changing the angular distribution of the light of the first wavelength. It should be noted that the convex reflective surface of the second light guide 408b is a structure in which a metal reflective film is plated on a convex structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
当第二光引导件408b为凹面镜时，此时第二光引导件408b包括一凹面反射面，该凹面反射面迎向第一波长光，将第一波长光反射，并改变光束角分布，对光束进行汇聚。此时第二光引导件408b的作用除了通过反射使得第一波长光能够与第二波长光主光轴重合外，另一作用在于通过改变第一波长光的光束角分布，对光束进行汇聚。需要说明的是，第二光引导件408b的凹面反射面在一凹面结构上镀制金属反射膜的结构。在其他实施方式中，也可以通过镀制介质反射膜等方式实现。When the second light guide 408b is a concave mirror, the second light guide 408b includes a concave reflective surface facing the first wavelength light, reflecting the first wavelength light, and changing the beam angle distribution. Converge the beam. At this time, the second light guide 408b not only allows the light of the first wavelength to coincide with the main optical axis of the light of the second wavelength by reflection, but also functions to converge the light by changing the angular distribution of the light of the first wavelength. It should be noted that the concave reflective surface of the second light guide 408b is a structure in which a metal reflective film is plated on a concave structure. In other embodiments, it can also be achieved by plating a dielectric reflective film or the like.
第二光源203发射的补偿光经区域分光片404a的透补区域404a2透射后入射至收集透镜205，并经收集透镜205收集后传输至波长转换装置206。进一步的，补偿光经波长转换装置206的波长转换区段上设置的波长转换材料散射。补偿光经散射后与受激与沿相同光路传输，进入至匀光元件212。补偿光传输过程中各光学元件对于补偿光的光学处理与对于第二波长光的光学处理相同。The compensation light emitted by the second light source 203 is transmitted through the transparent area 404a2 of the regional beam splitter 404a, and then enters the collecting lens 205, and is collected by the collecting lens 205 and transmitted to the wavelength conversion device 206. Further, the compensation light is scattered by the wavelength conversion material provided on the wavelength conversion section of the wavelength conversion device 206. The compensation light is scattered and transmitted along the same optical path as the stimulated light and enters the homogenizing element 212. In the compensation light transmission process, the optical processing of each optical element for the compensation light is the same as the optical processing for the second wavelength light.
在一个实施例中，若省略第二光源203，则相应的区域分光片404a的透补区域404a2也可以省略。In an embodiment, if the second light source 203 is omitted, the transparent area 404a2 of the corresponding area beam splitter 404a can also be omitted.
本实施例仅对图14A所示的实施例与第一至七部分实施例的区别进行了描述，至于未描述的各光学元件对于光束的光学处理以及光束传输过程等，可参考第一至六部分实施例，在此不作赘述。This embodiment only describes the differences between the embodiment shown in FIG. 14A and the first to seventh parts of the embodiments. As for the optical processing and beam transmission process of the optical elements that are not described, please refer to the first to sixth Part of the embodiments are not repeated here.
第八部分实施例：The eighth part of the embodiment:
如图15所示，在一个实施例中，一种发光装置，包括第一光源201、第二光源203、区域分光片404b、收集透镜205、波长转换装置206、第一中继透镜307、光引导件408，其中光引导件408包括第一光引导件408a和第二光引导件408b、第二中继透镜310。As shown in FIG. 15, in one embodiment, a light emitting device includes a first light source 201, a second light source 203, a regional beam splitter 404b, a collecting lens 205, a wavelength conversion device 206, a first relay lens 307, and a light source. The guide 408, wherein the light guide 408 includes a first light guide 408a and a second light guide 408b, and a second relay lens 310.
本实施例采用区域分光片404b、第一光引导件408a和第二光引导件408b分别替换图10A所示的实施例中的区域分光片404a、第一光引导件408a和第二光引导件408b。In this embodiment, the regional beam splitter 404b, the first light guide 408a, and the second light guide 408b are used to replace the regional beam splitter 404a, the first light guide 408a, and the second light guide in the embodiment shown in FIG. 10A, respectively. 408b.
其中，区域分光片404b与区域分光片404a相同的是，也包含第一区域404a1、透补区域404a2、第三区域404a3和第四区域404a4，且各区域对于第一波长光、第二波长光以及补偿光的穿透特性相对于区域分光片404a维持不变。不同的是，对于区域分光片404b，其第一区域404a1相对于第三区域404a3远离收集透镜205；而对于区域分光片404a，其第一区域404a1相对于第三区域404a3接近收集透镜205。Among them, the regional beam splitter 404b is the same as the regional beam splitter 404a in that it also includes a first region 404a1, a transparent region 404a2, a third region 404a3, and a fourth region 404a4, and each region is for the first wavelength light and the second wavelength light. And the penetrating characteristic of the compensation light remains unchanged relative to the area beam splitter 404a. The difference is that for the area beam splitter 404b, the first area 404a1 is far away from the collecting lens 205 relative to the third area 404a3; for the area beam splitter 404a, the first area 404a1 is closer to the collecting lens 205 relative to the third area 404a3.
第一波长光经第一中继透镜307收集并传输至第二光引导件408b，第二光引导件408b位于第一光引导件408a反射的第二波长光的光路上，且第二光引导件408b接收的第一波长光的主光轴与第一光引导件408a反射的第二波长光的主光轴汇聚于第二光引导件408b的反射面，且第二光引导件408b将其所接收的第一波长光沿第一光引导件408a反射的第二波长光的主光轴方向反射，从而使得第一波长光的主光轴与第二波长光的主光轴重合。The first wavelength light is collected by the first relay lens 307 and transmitted to the second light guide 408b. The second light guide 408b is located on the optical path of the second wavelength light reflected by the first light guide 408a, and the second light guides The main optical axis of the first wavelength light received by the member 408b and the main optical axis of the second wavelength light reflected by the first light guide 408a converge on the reflective surface of the second light guide 408b, and the second light guide 408b converges it The received light of the first wavelength is reflected along the main optical axis direction of the light of the second wavelength reflected by the first light guide 408a, so that the main optical axis of the light of the first wavelength coincides with the main optical axis of the light of the second wavelength.
第一光引导件408a与第二光引导件408b一样，也具有反射第一波长光的特性，但是，本实施例不限制第一光引导件408a对于第一波长光的穿透特性，第一光引导件408a可以具有透射第一波长光的特性，或者具有反射第一 波长光的特性，或者具有对于第一波长光部分透射以及部分反射的特性，等等。The first light guide 408a, like the second light guide 408b, also has the characteristic of reflecting the light of the first wavelength. However, this embodiment does not limit the penetration characteristic of the first light guide 408a to the light of the first wavelength. The light guide 408a may have a characteristic of transmitting light of the first wavelength, or a characteristic of reflecting light of the first wavelength, or a characteristic of partially transmitting and partially reflecting light of the first wavelength, and so on.
需要说明的是，此实施例中的区域分光片404b可以相当于一第二光引导件与一第一光引导件叠加设置。该第二光引导件具有反射激发光的特性，该第一光引导件具有反射第二波长光的特性。该第二光引导件和该第一光引导件相互不影响各自对于激发光和第二波长光的引导；当该第二光引导件位于第二波长光入射至该第一光引导件的光路上时，该第二光引导件透射第二波长光；当该第一光引导件位于激发光入射至该第二光引导件的光路上时，该第一光引导件透射激发光。It should be noted that the area beam splitter 404b in this embodiment may be equivalent to a second light guide and a first light guide superimposed. The second light guide has a characteristic of reflecting excitation light, and the first light guide has a characteristic of reflecting light of a second wavelength. The second light guide and the first light guide do not affect each other's guidance of the excitation light and the second wavelength light; when the second light guide is located at the second wavelength, the light incident on the first light guide When on the road, the second light guide transmits light of the second wavelength; when the first light guide is located on the light path where the excitation light is incident on the second light guide, the first light guide transmits the excitation light.
本实施例中未描述的各光学元件的功能和特性以及光束的传输和光学处理可参考第七部分实施例，在此不作赘述。For the functions and characteristics of the optical elements and the transmission and optical processing of the light beams that are not described in this embodiment, please refer to the seventh part of the embodiment, which will not be repeated here.
第九部分实施例：Example of Part Nine:
如图16所示，在一个实施例中，一种发光装置，包括第一光源201、第二光源203、第一光引导件408a、第二光引导件408b、补偿光引导件204c、收集透镜205、波长转换装置206、第一中继透镜307、激发光引导件209c1、第二中继透镜310。As shown in FIG. 16, in one embodiment, a light emitting device includes a first light source 201, a second light source 203, a first light guide 408a, a second light guide 408b, a compensation light guide 204c, and a collection lens 205, the wavelength conversion device 206, the first relay lens 307, the excitation light guide 209c1, and the second relay lens 310.
本实施例中未描述的各光学元件的功能和特性以及光束的传输以及光学处理可参考第三部分实施例和第七部分实施例，在此不作赘述。The functions and characteristics of the optical elements, the transmission of the light beam and the optical processing that are not described in this embodiment can refer to the third part of the embodiment and the seventh part of the embodiment, which will not be repeated here.
第十部分实施例：The tenth part of the embodiment:
如图17所示，在一个实施例中，一种发光装置，包括第一光源201、第二光源203、第一光引导件408a、第二光引导件408b、补偿光引导件204c、收集透镜205、波长转换装置206、第一中继透镜307、激发光引导件209d1、第二中继透镜310。As shown in FIG. 17, in one embodiment, a light emitting device includes a first light source 201, a second light source 203, a first light guide 408a, a second light guide 408b, a compensation light guide 204c, and a collection lens 205, the wavelength conversion device 206, the first relay lens 307, the excitation light guide 209d1, and the second relay lens 310.
本实施例中未描述的各光学元件的功能和特性以及光束的传输以及光学处理可参考第四部分实施例和第八部分实施例，在此不作赘述。The functions and characteristics of the optical elements and the transmission and optical processing of the optical elements that are not described in this embodiment can be referred to the fourth part of the embodiment and the eighth part of the embodiment, which will not be repeated here.
第十一部分实施例：The eleventh part of the embodiment:
如图18所示，在一个实施例中，一种发光装置，包括第一光源201、第二光源203、第一光引导件204a、第二光引导件204b、第三光引导件408b以及第四光引导件408a、收集透镜205、波长转换装置206、第一中继透镜307、第二中继透镜310。As shown in FIG. 18, in one embodiment, a light emitting device includes a first light source 201, a second light source 203, a first light guide 204a, a second light guide 204b, a third light guide 408b, and a Four light guides 408a, collection lens 205, wavelength conversion device 206, first relay lens 307, and second relay lens 310.
其中，第一波长光经收集透镜205收集后，透射第一光引导件204a，并进一步入射至第二光引导件204b，经第二光引导件204b反射后，传输至第一中继透镜307。The light of the first wavelength is collected by the collecting lens 205, transmitted through the first light guide 204a, and further incident on the second light guide 204b, reflected by the second light guide 204b, and transmitted to the first relay lens 307 .
第二光引导件204b位于第一光引导件204a反射的第二波长光的光路的反向延长路径上，且第二光引导件204b接收的第一波长光的主光轴4e2与第一光引导件204a接收的第二波长光的主光轴4e1的距离大于：第二光引导件204b反射的第一波长光的主光轴4e4与第一光引导件204a反射的第二波长光的主光轴4e3的距离，从而使得在传输过程中第一波长光与第二波长光的主光轴的距离变得更靠近。The second light guide 204b is located on the reverse extension path of the light path of the second wavelength light reflected by the first light guide 204a, and the main optical axis 4e2 of the first wavelength light received by the second light guide 204b and the first light The distance between the main optical axis 4e1 of the second wavelength light received by the guide 204a is greater than the main optical axis 4e4 of the first wavelength light reflected by the second light guide 204b and the main optical axis 4e4 of the second wavelength light reflected by the first light guide 204a. The distance of the optical axis 4e3 makes the distance between the main optical axis of the first wavelength light and the second wavelength light become closer during the transmission process.
第三光引导件408b的功能与第二光引导件204b相同，第三光引导件408b与第二光引导件204b的区别仅在于二者相对于第四光引导件408a反射的第二波长光的主光轴的角度不同。由于，第一波长光入射至第二光引导件204b的入射角和入射至第三引导件408b的入射角是不同的，因此，相适应的，为了将第一波长光沿第四光引导件408a反射的第二波长光的主光轴方向反射，二者相对于第四光引导件408a反射的第二波长光的主光轴的角度是不同的。其中，第三光引导件408b相对于第四光引导件408a反射的第二波长光的主光轴的角度为：垂直于第三光引导件408b的反射面的直线与第四光引导件408a反射的第二波长光的主光轴的夹角。The function of the third light guide 408b is the same as that of the second light guide 204b. The difference between the third light guide 408b and the second light guide 204b is only the second wavelength light reflected by the fourth light guide 408a. The angle of the main optical axis is different. Since the incident angle of the light of the first wavelength to the second light guide 204b is different from the incident angle of the light to the third guide 408b, accordingly, in order to transmit the light of the first wavelength along the fourth light guide The light of the second wavelength reflected by the 408a is reflected in the direction of the main optical axis, and the angles of the two light with respect to the main optical axis of the light of the second wavelength reflected by the fourth light guide 408a are different. The angle of the main optical axis of the second wavelength light reflected by the third light guide 408b relative to the fourth light guide 408a is: a straight line perpendicular to the reflection surface of the third light guide 408b and the fourth light guide 408a The angle between the main optical axis of the reflected light of the second wavelength.
本实施例中未描述的各光学元件的功能和特性以及光束的传输以及光学处理可参考第二部分实施例和第八部分实施例，在此不作赘述。For the functions and characteristics of the optical elements, the transmission of light beams and the optical processing that are not described in this embodiment, please refer to the second part of the embodiment and the eighth part of the embodiment, which will not be repeated here.
第十二部分实施例：Twelfth part of the embodiment:
如图19A所示，在一个实施例中，一种发光装置，包括第一光源201、匀光装置202、第二光源203、区域分光片504、收集透镜205、波长转换装置506、第一中继透镜307、反射元件308、第二中继透镜310、滤光轮211和匀光元件212。As shown in FIG. 19A, in one embodiment, a light emitting device includes a first light source 201, a light homogenizing device 202, a second light source 203, a regional beam splitter 504, a collecting lens 205, a wavelength conversion device 506, and a first middle The relay lens 307, the reflective element 308, the second relay lens 310, the filter wheel 211 and the homogenizing element 212.
与图8所示的实施例不同的是：The difference from the embodiment shown in Figure 8 is:
如图19B所示，区域分光片504包括第一区域5041、第二区域5042和第三区域5043。其中：第一区域5041具有透射第一波长光以及反射第二波长光和补偿光的特性。第二区域5042具有透射补偿光和反射第一波长光的特性；若补偿光与第二波长光具有交叠的波长范围，则第二区域5042还透射第二波长光中交叠波长范围内的光；本实施例不限制第二区域5042对于第二波长光中交叠波长范围外的光的穿透特性；优选的，第二区域5042可以反射第二波长光中交叠波长范围外的光。第三区域5043具有反射第二波长光和补偿光的特性；本实施例不限制第三区域5043对于第一波长光的穿透特性。当第三区域5043对于第一波长光具有透射特性时可以与第一区域5041融合为一个区域。As shown in FIG. 19B, the area beam splitter 504 includes a first area 5041, a second area 5042, and a third area 5043. Among them: the first area 5041 has the characteristics of transmitting light of the first wavelength, reflecting light of the second wavelength and compensating light. The second area 5042 has the characteristics of transmitting the compensation light and reflecting the first wavelength light; if the compensation light and the second wavelength light have overlapping wavelength ranges, the second area 5042 also transmits the second wavelength light in the overlapping wavelength range Light; this embodiment does not limit the penetration characteristics of the second area 5042 for light outside the overlapping wavelength range of the second wavelength light; preferably, the second area 5042 can reflect light outside the overlapping wavelength range of the second wavelength light . The third area 5043 has the characteristics of reflecting the second wavelength light and compensating light; this embodiment does not limit the penetration characteristics of the third area 5043 to the first wavelength light. When the third area 5043 has a transmission characteristic for the first wavelength light, it can be merged with the first area 5041 into one area.
第一激发光透射区域分光片504的第一区域5041，并由收集透镜205收集并传输至波长转换装置506。The first excitation light transmits the first area 5041 of the light splitter 504, and is collected by the collecting lens 205 and transmitted to the wavelength conversion device 506.
波长转换装置506相对于波长转换装置206的区别在于：第一激发光经波长转换装置506的非波长转换区段反射后形成的第一波长光的主光轴与从波长转换装置506出射的第二波长光的主光轴重合。The difference between the wavelength conversion device 506 and the wavelength conversion device 206 is that the main optical axis of the first wavelength light formed after the first excitation light is reflected by the non-wavelength conversion section of the wavelength conversion device 506 and the first wavelength light emitted from the wavelength conversion device 506 The main optical axes of the two-wavelength light coincide.
以波长转换装置506为圆盘结构、其非波长转换区段和波长转换区段围拼成圆环状为例，非波长转换区段和波长转换区段绕波长转换装置506的中心轴旋转。图19C至19E示出非波长转换区段的径向剖面的示意图。该径向剖面可以理解为以经过波长转换装置506的中心轴的平面切剖非波长转换区段得到的剖面。相应地，波长转换装置506的非波长转换区段的立体轮廓可以通过图19C、19D和19E所示的形状5c、和5d和5e绕波长转换装置506的中心轴5061旋转预定角度而得到。Taking the wavelength conversion device 506 as a disc structure, the non-wavelength conversion section and the wavelength conversion section are assembled into a circular ring as an example, the non-wavelength conversion section and the wavelength conversion section rotate around the central axis of the wavelength conversion device 506. 19C to 19E show schematic diagrams of radial cross-sections of the non-wavelength conversion section. The radial cross-section can be understood as a cross-section obtained by cutting the non-wavelength conversion section with a plane passing through the central axis of the wavelength conversion device 506. Correspondingly, the three-dimensional profile of the non-wavelength conversion section of the wavelength conversion device 506 can be obtained by rotating the shapes 5c, 5d and 5e shown in FIGS. 19C, 19D, and 19E around the central axis 5061 of the wavelength conversion device 506 by a predetermined angle.
如图19C、19D和19E所示，第一波长光51经过反射面52c、52d和52e反射。第一波长光51的主光轴与从波长转换装置506的波长转换区段出射的第二波长光的主光轴重合。其中，反射面52c、52d和52e分别为凸面、凹面和平面。但是，本发明不以此为限定，所有将第一波长光反射形成与第二波长光的主光轴重合的反射面都属于本发明保护的范围。As shown in FIGS. 19C, 19D, and 19E, the first wavelength light 51 is reflected by the reflective surfaces 52c, 52d, and 52e. The main optical axis of the first wavelength light 51 coincides with the main optical axis of the second wavelength light emitted from the wavelength conversion section of the wavelength conversion device 506. Among them, the reflective surfaces 52c, 52d, and 52e are convex, concave and flat surfaces, respectively. However, the present invention is not limited to this, and all the reflective surfaces that reflect the light of the first wavelength and form a reflection surface that coincides with the main optical axis of the light of the second wavelength fall within the protection scope of the present invention.
由于从波长转换装置506出射的第一波长光已经与从波长转换装置506出射的第二波长光的主光轴重合，因此，图19A所示的实施例相对于图8A所示的实施例相应地省略了第二光引导件。Since the first wavelength light emitted from the wavelength conversion device 506 has coincided with the main optical axis of the second wavelength light emitted from the wavelength conversion device 506, the embodiment shown in FIG. 19A corresponds to the embodiment shown in FIG. 8A The second light guide is omitted.
需要说明的是，此实施例中的区域分光片504可以相当于一第二光引导件与一第一光引导件叠加设置。该第二光引导件具有反射激发光的特性，该第一光引导件具有反射第二波长光的特性。该第二光引导件和该第一光引导件相互不影响各自对于激发光和第二波长光的引导；当该第二光引导件位于第二波长光入射至该第一光引导件的光路上时，该第二光引导件透射第二波长光；当该第一光引导件位于激发光入射至该第二光引导件的光路上时，该第一光引导件透射激发光。It should be noted that the area beam splitter 504 in this embodiment may be equivalent to a second light guide and a first light guide superimposed. The second light guide has a characteristic of reflecting excitation light, and the first light guide has a characteristic of reflecting light of a second wavelength. The second light guide and the first light guide do not affect each other's guidance of the excitation light and the second wavelength light; when the second light guide is located at the second wavelength, the light incident on the first light guide When on the road, the second light guide transmits light of the second wavelength; when the first light guide is located on the light path where the excitation light is incident on the second light guide, the first light guide transmits the excitation light.
本实施例中未描述的各光学元件的功能和特性以及光束的传输以及光学处理可参考第六部分实施例，在此不作赘述。For the functions and characteristics of the optical elements, the transmission of light beams and the optical processing that are not described in this embodiment, please refer to the sixth part of the embodiment, which will not be repeated here.
第十三部分实施例：The thirteenth embodiment:
如图20所示，在一个实施例中，一种发光装置，包括第一光源201、匀光装置202、第二光源203、第一光引导件608a和608b，第二光引导件604和609、收集透镜605a、收集透镜605b、波长转换装置606、第一中继透镜607、第二中继透镜310、滤光轮211和匀光元件212。As shown in FIG. 20, in one embodiment, a light emitting device includes a first light source 201, a light homogenizing device 202, a second light source 203, first light guides 608a and 608b, and second light guides 604 and 609 , The collection lens 605a, the collection lens 605b, the wavelength conversion device 606, the first relay lens 607, the second relay lens 310, the filter wheel 211 and the homogenizing element 212.
本实施例与第六部分实施例的主要区别在于：第六部分实施例中的波长转换装置的波长转换区段为反射式波长转换区段，第二波长光与第一波长光从波长转换装置的同一侧出射；而在本实施例中，波长转换装置606的波长转换区段为透射式波长转换区段，第二波长光与第一波长光从波长转换装置606的不同侧出射。The main difference between this embodiment and the sixth part of the embodiment is that the wavelength conversion section of the wavelength conversion device in the sixth part of the embodiment is a reflective wavelength conversion section, and the second wavelength light and the first wavelength light are separated from the wavelength conversion device In this embodiment, the wavelength conversion section of the wavelength conversion device 606 is a transmissive wavelength conversion section, and the second wavelength light and the first wavelength light are emitted from different sides of the wavelength conversion device 606.
本实施例中，第一光源201发射的第一激发光经匀光装置202匀光后入射至收集透镜605a，经收集透镜605a收集后传输至波长转换装置606。波长转换装置606的非波长转换区段反射第一激发光得到第一波长光，第一波长光进一步经收集透镜605a收集并传输至第二光引导件604，第二光引导件604将第一波长光反射至第一中继透镜607，第一波长光进一步地由第一中继透镜607收集并传输至第二光引导件609，并由第二光引导件609反射至第二中继透镜310。其中，第一光引导件608b不影响第一波长光的传输，具有透射第一波长光的特性。In this embodiment, the first excitation light emitted by the first light source 201 is homogenized by the light homogenizing device 202 and then incident to the collection lens 605a, collected by the collection lens 605a, and transmitted to the wavelength conversion device 606. The non-wavelength conversion section of the wavelength conversion device 606 reflects the first excitation light to obtain the first wavelength light. The first wavelength light is further collected by the collecting lens 605a and transmitted to the second light guide 604. The second light guide 604 transfers the first light The wavelength light is reflected to the first relay lens 607, the first wavelength light is further collected by the first relay lens 607 and transmitted to the second light guide 609, and reflected by the second light guide 609 to the second relay lens 310. Among them, the first light guide 608b does not affect the transmission of the first wavelength light, and has the characteristic of transmitting the first wavelength light.
波长转换装置606的波长转换区段接收第一激发光，并受激产生第二波长光，第二波长光经收集透镜605b收集后入射至第一光引导件608a，并经第一光引导件608a反射至第一光引导件608b，进一步由第一光引导件608b反射至第二中继透镜310。第二中继透镜310收集第一波长光以及第二波长光，并将第一波长光和第二波长光传输至滤光轮211。The wavelength conversion section of the wavelength conversion device 606 receives the first excitation light and is excited to generate light of the second wavelength. The light of the second wavelength is collected by the collection lens 605b and enters the first light guide 608a, and passes through the first light guide. 608a is reflected to the first light guide 608b, and is further reflected to the second relay lens 310 by the first light guide 608b. The second relay lens 310 collects the first wavelength light and the second wavelength light, and transmits the first wavelength light and the second wavelength light to the filter wheel 211.
其中，第一波长光进入匀光元件212的主光轴与第二波长光进入匀光元件的主光轴重合。The main optical axis of the light of the first wavelength entering the homogenization element 212 coincides with the main optical axis of the light of the second wavelength entering the homogenizing element.
本实施例中未描述的各光学元件的功能和特性以及光束的传输以及光学处理可参考第六部分实施例，在此不作赘述。For the functions and characteristics of the optical elements, the transmission of light beams and the optical processing that are not described in this embodiment, please refer to the sixth part of the embodiment, which will not be repeated here.
第十四部分实施例：Fourteenth embodiment:
如图21所示，图21为本发明的发光装置的结构示意图。发光装置包括第一光源201、第一光引导件204a、第二光引导件204b、波长转换装置206，、收集透镜205、第一中继透镜207、反射片208、第二中继透镜210，此外，光源装置还包括第二光源203、匀光装置202、滤光轮211、积分棒212和补偿光引导件213。As shown in FIG. 21, FIG. 21 is a schematic diagram of the structure of the light-emitting device of the present invention. The light emitting device includes a first light source 201, a first light guide 204a, a second light guide 204b, a wavelength conversion device 206, a collecting lens 205, a first relay lens 207, a reflection sheet 208, and a second relay lens 210, In addition, the light source device further includes a second light source 203, a light homogenizing device 202, a filter wheel 211, an integrator rod 212, and a compensation light guide 213.
与上述包括第二光源203的实施例不同的是，上述各实施例中，第二光源203发出的补偿光先入射到波长转换区段，然后经散射反射后形成朗伯分布的光并与第二波长光一同出射，即补偿光与第二波长光在波长转换区段的发光表面位置合光；而本实施例部分的第二光源203发出的补偿光不入射至 波长转换区段，而是在第二波长光产生后，通过补偿光引导件213与第二波长光合光。该技术方案避免了补偿光被波长转换装置散射而造成的光损失，极大的提高了补偿光的光利用率。Different from the above-mentioned embodiments including the second light source 203, in the above-mentioned embodiments, the compensation light emitted by the second light source 203 first enters the wavelength conversion section, and then forms Lambertian distributed light after being scattered and reflected. The two-wavelength light is emitted together, that is, the compensation light and the second-wavelength light are combined at the light-emitting surface position of the wavelength conversion section; and the compensation light emitted by the second light source 203 in this embodiment is not incident on the wavelength conversion section, but After the light of the second wavelength is generated, it photosynthesizes light with the second wavelength through the compensation light guide 213. The technical solution avoids the light loss caused by the compensation light being scattered by the wavelength conversion device, and greatly improves the light utilization rate of the compensation light.
在本实施例中，补偿光引导件213设置于第二波长光的出射光路上，具体地，设置于积分棒212的出射光路上，第二波长光和补偿光分别从两个方向入射于补偿光引导件213，从而合为一束。补偿光引导件213可以如图所示，在一个透明基板上设置小反射区来实现，其中补偿光入射到小反射区，被小反射区反射，第二波长光覆盖补偿光引导件213的大部分区域，入射到非小反射区的透明基板的第二波长光直接透射。进一步地，还可以通过镀膜使得小反射区仅反射补偿光波长范围的光，透射其他波长范围的光。在一个实施方式中，还可以将补偿光引导件213对第二波长光和补偿光的透射反射特性调换，可以通过在反射片上设置补偿光透射区域来实现该技术方案。In this embodiment, the compensation light guide 213 is arranged on the exit light path of the second wavelength light, specifically, on the exit light path of the integrator rod 212. The second wavelength light and the compensation light are incident on the compensation light from two directions respectively. The light guides 213 are thus combined into one bundle. The compensation light guide 213 can be realized by setting a small reflection area on a transparent substrate as shown in the figure. The compensation light is incident on the small reflection area and reflected by the small reflection area, and the second wavelength light covers the large area of the compensation light guide 213. In some areas, the second wavelength light incident on the transparent substrate in the non-small reflection area is directly transmitted. Further, it is also possible to coat the small reflection area to only reflect light in the compensation light wavelength range and transmit light in other wavelength ranges. In an embodiment, the transmission and reflection characteristics of the compensation light guide 213 for the second wavelength light and the compensation light can also be exchanged, and this technical solution can be realized by providing a compensation light transmission area on the reflective sheet.
在本实施例中，补偿光引导件213设置在积分棒212的出射光路上，在其他实施方式中，补偿光引导件213也可以设置于其他位置，例如，可以设置于积分棒212的入射光的光路上，或者设置于波长转换装置与滤光轮之间的光路上。总之，本实施例部分的技术方案宗旨在于，避免补偿光入射到波长转换区段，从而避免补偿光因波长转换区段的散射而造成的光损失。In this embodiment, the compensating light guide 213 is arranged on the exit light path of the integrator rod 212. In other embodiments, the compensating light guide 213 may also be arranged at other positions, for example, it may be arranged on the incident light of the integrator rod 212. , Or set on the optical path between the wavelength conversion device and the filter wheel. In short, part of the technical solution of this embodiment aims to prevent the compensation light from being incident on the wavelength conversion section, so as to avoid the light loss caused by the compensation light due to the scattering of the wavelength conversion section.
本实施例关于第二光源203发出的补偿光与第二波长光合光的技术特征可以应用到本发明其他实施方式中，本实施例未详细描述的各光学元件对于光束的光学处理以及光束传输过程等，可参照上述各实施例的描述，此处不再赘述。The technical characteristics of the compensation light emitted by the second light source 203 and the second wavelength photosynthetic light in this embodiment can be applied to other embodiments of the present invention. The optical processing and beam transmission process of each optical element that are not described in detail in this embodiment Etc., please refer to the description of the foregoing embodiments, which will not be repeated here.
本发明还提供一种投影***，该投影***包括上述任一实施例所示的发光装置。The present invention also provides a projection system, which includes the light emitting device shown in any of the above embodiments.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims (31)

  1. 一种发光装置，其特征在于，包括光源、光引导***和波长转换装置；A light emitting device, characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
    所述光源包括第一光源，所述第一光源用于发射第一激发光；The light source includes a first light source, and the first light source is used to emit a first excitation light;
    所述光引导***用于将所述第一激发光引导至所述波长转换装置；The light guide system is used to guide the first excitation light to the wavelength conversion device;
    所述波长转换装置至少包括一波长转换区段和一非波长转换区段，所述波长转换装置由环形或扇形的所述波长转换区段和所述波长非转换区段拼接而成，所述波长转换区段受所述第一激发光的激发而产生第二波长光，所述非波长转换区段反射所述第一激发光得第一波长光；The wavelength conversion device at least includes a wavelength conversion section and a non-wavelength conversion section, and the wavelength conversion device is formed by splicing the ring-shaped or fan-shaped wavelength conversion section and the wavelength non-conversion section. The wavelength conversion section is excited by the first excitation light to generate second wavelength light, and the non-wavelength conversion section reflects the first excitation light to obtain first wavelength light;
    其中所述第一波长光和所述第二波长光的波长覆盖范围不同；Wherein the wavelength coverage of the first wavelength light and the second wavelength light are different;
    所述光引导***还用于引导所述第一波长光和第二波长光沿出射光通道。The light guide system is also used to guide the first wavelength light and the second wavelength light along the exit light channel.
  2. 如权利要求1所述的发光装置，其特征在于，所述波长转换装置还包括一驱动装置，所述驱动装置周期性运动以使得所述波长转换区段和所述非波长转换区段分时位于所述第一激发光的光路上，2. The light emitting device of claim 1, wherein the wavelength conversion device further comprises a driving device, the driving device periodically moves to make the wavelength conversion section and the non-wavelength conversion section time-sharing Located on the optical path of the first excitation light,
    所述波长转换区段至少包括一发光层，所述发光层为有机粘接材料荧光粉层、无机粘接材料荧光粉层或荧光陶瓷中的一种。The wavelength conversion section includes at least one light-emitting layer, and the light-emitting layer is one of an organic bonding material phosphor layer, an inorganic bonding material phosphor layer, or a fluorescent ceramic.
  3. 如权利要求2所述的发光装置，其特征在于，所述非波长转换区段至少包括一用于对第一激发光反射的反射层或光学膜层，所述反射层包括用于镜面反射的金属反射层或用于散射的漫反射层；The light-emitting device according to claim 2, wherein the non-wavelength conversion section includes at least a reflective layer or an optical film layer for reflecting the first excitation light, and the reflective layer includes a reflective layer for specular reflection. Metal reflective layer or diffuse reflective layer for scattering;
    所述光学膜层包括可对第一激发光波段反射的介质膜层、滤光层或二向色片中的一种。The optical film layer includes one of a dielectric film layer, a filter layer or a dichroic film that can reflect the first excitation light wavelength band.
  4. 一种发光装置，其特征在于，包括光源、光引导***和波长转换装置；A light emitting device, characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
    所述光源包括第一光源，所述第一光源用于发射第一激发光，所述第一激发光沿入射光通道入射至所述光引导***；The light source includes a first light source, the first light source is used to emit a first excitation light, and the first excitation light is incident to the light guiding system along an incident light channel;
    所述光引导***用于将所述第一激发光引导至所述波长转换装置；The light guide system is used to guide the first excitation light to the wavelength conversion device;
    所述波长转换装置至少包括一波长转换区段和一非波长转换区段，所述波长转换区段受所述第一激发光的激发而产生第二波长光，所述非波长转换区段反射所述第一激发光得第一波长光；The wavelength conversion device includes at least a wavelength conversion section and a non-wavelength conversion section. The wavelength conversion section is excited by the first excitation light to generate a second wavelength light, and the non-wavelength conversion section reflects The first excitation light obtains light of a first wavelength;
    所述光引导***还用于引导所述第一波长光和第二波长光沿出射光通道出射；The light guide system is also used to guide the first wavelength light and the second wavelength light to exit along an exit light channel;
    其中，所述第一激发光经所述光引导***后斜射向所述波长转换装置。Wherein, the first excitation light is obliquely directed toward the wavelength conversion device after passing through the light guiding system.
  5. 如权利要求4所述的发光装置，其特征在于，所述光引导***包括透镜***，所述透镜***设置在所述第一激发光的光路上，所述第一激发光从所述透镜***的非中心位置入射，使得所述第一激发光与所述第一波长光的光路不重叠。The light emitting device according to claim 4, wherein the light guiding system comprises a lens system, the lens system is arranged on the optical path of the first excitation light, and the first excitation light is transmitted from the lens system Is incident from a non-central position of, so that the optical paths of the first excitation light and the first wavelength light do not overlap.
  6. 如权利要求5所述的发光装置，其特征在于，所述光引导***至少包括第一光引导件和第二光引导件，所述第一光引导件设置在第一激发光的光路上，所述第一光引导件透射或反射所述第一激发光；The light emitting device according to claim 5, wherein the light guiding system comprises at least a first light guiding member and a second light guiding member, the first light guiding member is arranged on the optical path of the first excitation light, The first light guide transmits or reflects the first excitation light;
    所述第二光引导件设置在第一波长光的光路上，所述第二光引导件透射或反射所述第一波长光。The second light guide is arranged on the optical path of the first wavelength light, and the second light guide transmits or reflects the first wavelength light.
  7. 如权利要求6所述的发光装置，其特征在于，所述第一激发光经所述第一光引导件透射进入所述透镜***，经所述透镜***收集进入所述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***入射至所述第二光引导件，所述第二光引导件反射所述第一波长光至出射光通道。7. The light-emitting device of claim 6, wherein the first excitation light is transmitted through the first light guide into the lens system, and collected by the lens system to enter the wavelength conversion device, and the The wavelength conversion device reflects the first excitation light to obtain the first wavelength light, the first wavelength light is incident on the second light guide through the lens system, and the second light guide reflects the first light One wavelength light to the exit light channel.
  8. 如权利要求6所述的发光装置，其特征在于，所述第二光引导件设置在所述第一光引导件和所述第一光源的光路上，所述第一激发光经所述第一光引导件透射进入所述透镜***，经所述透镜***收集进入所述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经 所述透镜***收集进入所述第一光引导件，经所述第一光引导件透射进入所述第二光引导件，所述第二光引导件反射所述第一波长光至出射光通道。The light emitting device according to claim 6, wherein the second light guide is provided on the optical path between the first light guide and the first light source, and the first excitation light passes through the first light guide. A light guide transmits into the lens system, is collected by the lens system and enters the wavelength conversion device, the wavelength conversion device reflects the first excitation light to obtain the first wavelength light, and the first wavelength light The lens system collects and enters the first light guide, transmits through the first light guide and enters the second light guide, and the second light guide reflects the first wavelength light to the exit light aisle.
  9. 如权利要求7所述的发光装置，其特征在于，所述光引导***还包括第一中继透镜和反射元件，所述第一中继透镜用于收集经所述第一光引导件反射的所述第二波长光和经所述第二光引导件反射的第一波长光，所述第一中继透镜将收集的所述第一波长光和所述第二波长光传输至所述反射元件，所述反射元件反射所述第一波长光和所述第二波长光。The light emitting device according to claim 7, wherein the light guide system further comprises a first relay lens and a reflective element, and the first relay lens is used to collect the light reflected by the first light guide The second wavelength light and the first wavelength light reflected by the second light guide, the first relay lens transmits the collected first wavelength light and the second wavelength light to the reflection Element, the reflective element reflects the first wavelength light and the second wavelength light.
  10. 如权利要求9所述的发光装置，其特征在于，所述光引导***还包括第三光引导件，所述第三光引导件设置于所述第一中继透镜和所述反射元件的光路上，所述第一中继透镜将收集的所述第一波长光传输至所述第三光引导件，所述第三光引导件发射所述第一波长光。The light emitting device according to claim 9, wherein the light guide system further comprises a third light guide, and the third light guide is disposed on the light of the first relay lens and the reflective element. On the way, the first relay lens transmits the collected light of the first wavelength to the third light guide, and the third light guide emits the light of the first wavelength.
  11. 如权利要求6所述的发光装置，其特征在于，所述光引导***还包括光学膜片，所述光学膜片包括第一区域、第三区域和第四区域；7. The light-emitting device according to claim 6, wherein the light guiding system further comprises an optical film, and the optical film includes a first area, a third area, and a fourth area;
    所述第一区域透射所述第一激发光和第一波长光并反射所述第二波长光；The first region transmits the first excitation light and the first wavelength light and reflects the second wavelength light;
    所述第三区域反射所述第一激发光、所述第一波长光和所述第二波长光；The third region reflects the first excitation light, the first wavelength light, and the second wavelength light;
    所述第四区域反射所述第二波长光。The fourth area reflects the second wavelength light.
  12. 如权利要求11所述的发光装置，其特征在于，所述第一激发光经所述第一区域透射进入所述透镜***，所述透镜***收集所述第一激发光并入射进入述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集至所述第三区域，所述第三区域反射所述第一波长光至所述第一光引导件，所述第一光引导件透射所述第一波长光至所述第二光引导件，所述第二光引导件反射所述第一波长光。The light-emitting device according to claim 11, wherein the first excitation light is transmitted through the first region and enters the lens system, and the lens system collects the first excitation light and enters the wavelength conversion Device, the wavelength conversion device reflects the first excitation light to obtain the first wavelength light, the first wavelength light is collected by the lens system to the third region, and the third region reflects the first wavelength light One wavelength light reaches the first light guide, the first light guide transmits the first wavelength light to the second light guide, and the second light guide reflects the first wavelength light.
  13. 如权利要求11所述的发光装置，其特征在于，所述第一激发光经所述第一区域透射进入所述透镜***，所述透镜***收集所述第一激发光并入射进 入述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集至所述第三区域，所述第三区域反射所述第一波长光至所述第二光引导件，所述第二光引导件反射所述第一波长光。The light-emitting device according to claim 11, wherein the first excitation light is transmitted through the first region and enters the lens system, and the lens system collects the first excitation light and enters the wavelength conversion Device, the wavelength conversion device reflects the first excitation light to obtain the first wavelength light, the first wavelength light is collected by the lens system to the third region, and the third region reflects the first wavelength light One wavelength light reaches the second light guide, and the second light guide reflects the first wavelength light.
  14. 如权利要求6所述的发光装置，其特征在于，所述光引导***至少还包括一激发光引导件，所述激发光引导件设置于所述第一光引导件和所述波长转换装置的光路上，所述激发光引导件反射或透射所述第一激发光和第一波长光。The light-emitting device according to claim 6, wherein the light guide system further comprises at least one excitation light guide, and the excitation light guide is disposed on the first light guide and the wavelength conversion device. On the optical path, the excitation light guide reflects or transmits the first excitation light and the first wavelength light.
  15. 如权利要求14所述的发光装置，其特征在于，所述第一激发光经所述激发光引导件反射进入所述透镜***，所述透镜***收集所述第一激发光至所述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集至所述第一光引导件，所述第一光引导件透射所述第一波长光至所述第二光引导件，所述第二光引导件反射所述第一波长光。The light-emitting device according to claim 14, wherein the first excitation light is reflected by the excitation light guide and enters the lens system, and the lens system collects the first excitation light to the wavelength conversion Device, the wavelength conversion device reflects the first excitation light to obtain the first wavelength light, the first wavelength light is collected by the lens system to the first light guide, the first light guide The first wavelength light is transmitted to the second light guide, and the second light guide reflects the first wavelength light.
  16. 如权利要求14所述的发光装置，其特征在于，所述第一激发光经所述激发光引导件反射进入所述透镜***，所述透镜***收集所述第一激发光至所述波长转换装置，所述波长转换装置反射所述第一激发光得到所述第一波长光，所述第一波长光经所述透镜***收集至所述第二光引导件，所述第二光引导件反射所述第一波长光。The light-emitting device according to claim 14, wherein the first excitation light is reflected by the excitation light guide and enters the lens system, and the lens system collects the first excitation light to the wavelength conversion Device, the wavelength conversion device reflects the first excitation light to obtain the first wavelength light, the first wavelength light is collected by the lens system to the second light guide, and the second light guide The first wavelength light is reflected.
  17. 如权利要求8所述的发光装置，其特征在于，所述光引导***包括第一中继透镜、第三光引导件和第四光引导件；8. The light emitting device according to claim 8, wherein the light guide system comprises a first relay lens, a third light guide, and a fourth light guide;
    其中所述第一中继透镜用于收集经所述第一光引导件反射的第二波长光和经所述第二光引导件反射的第一波长光，所述第一中继透镜将收集的所述第一波长光和所述第二波长光传输至所述第三光引导件，所述第三光引导件反射所述第一波长光且透射所述第二波长光至所述第四光引导件，所述第四光引导件反射所述第二波长光。The first relay lens is used to collect the second wavelength light reflected by the first light guide and the first wavelength light reflected by the second light guide, and the first relay lens will collect The first wavelength light and the second wavelength light are transmitted to the third light guide, and the third light guide reflects the first wavelength light and transmits the second wavelength light to the first Four light guides, the fourth light guide reflects the second wavelength light.
  18. 如权利要求8所述的发光装置，其特征在于，所述光引导***包括第一中继透镜、第三光引导件和第四光引导件；8. The light emitting device according to claim 8, wherein the light guide system comprises a first relay lens, a third light guide, and a fourth light guide;
    其中所述第一中继透镜用于收集经所述第一光引导件反射的第二波长光和经所述第二光引导件反射的第一波长光，所述第一中继透镜将收集的所述第一波长光和所述第二波长光传输至所述第四光引导件，所述第四光引导件反射所述第二波长光且透射所述第一波长光至所述第三光引导件，所述第三光引导件反射所述第一波长光。The first relay lens is used to collect the second wavelength light reflected by the first light guide and the first wavelength light reflected by the second light guide, and the first relay lens will collect The first wavelength light and the second wavelength light are transmitted to the fourth light guide, and the fourth light guide reflects the second wavelength light and transmits the first wavelength light to the first wavelength light. Three light guides, the third light guide reflects the first wavelength light.
  19. 如权利要求5所述的发光装置，其特征在于，所述光引导***还包括反射元件和光学膜片；5. The light-emitting device according to claim 5, wherein the light guide system further comprises a reflective element and an optical film;
    所述反射元件用于反射所述第一激发光、第一波长光和第二波长光；The reflecting element is used to reflect the first excitation light, the first wavelength light and the second wavelength light;
    所述光学膜片包括第一区域、第二区域和第三区域，所述第一区域透射所述第一激发光和第一波长光且反射所述第二波长光，所述第二区域反射所述第一激发光和第一波长光，所述第三区域反射所述第二波长光；The optical film includes a first area, a second area, and a third area. The first area transmits the first excitation light and the first wavelength light and reflects the second wavelength light, and the second area reflects The first excitation light and the first wavelength light, and the third region reflects the second wavelength light;
  20. 如权利要求5所述的发光装置，其特征在于，所述光引导***还包括至少三激发光引导件，其实所述激发光引导件设置于所述第一激发光的光路上，其中任一所述激发光引导件反射所述第一激发光且透射所述第二波长光。The light-emitting device according to claim 5, wherein the light guiding system further comprises at least three excitation light guides, in fact, the excitation light guides are arranged on the optical path of the first excitation light, any of them The excitation light guide reflects the first excitation light and transmits the second wavelength light.
  21. 如权利要求5所述的发光装置，其特征在于，所述第一激发光的主光轴平行于所述透镜***的中心轴方向入射；或5. The light-emitting device according to claim 5, wherein the main optical axis of the first excitation light is incident parallel to the central axis of the lens system; or
    所述第一激发光的主光轴非平行于所述透镜***的中心轴方向入射。The main optical axis of the first excitation light is incident non-parallel to the central axis of the lens system.
  22. 一种发光装置，其特征在于，包括光源、光引导***和波长转换装置；A light emitting device, characterized in that it comprises a light source, a light guiding system and a wavelength conversion device;
    所述光源包括第一光源，所述第一光源用于发射第一激发光；The light source includes a first light source, and the first light source is used to emit a first excitation light;
    所述光引导***用于将所述第一激发光引导至所述波长转换装置；The light guide system is used to guide the first excitation light to the wavelength conversion device;
    所述波长转换装置至少包括一波长转换区段和一非波长转换区段，所述波长转换区段受所述第一激发光的激发而产生第二波长光，所述非波长转换区段反射所述第一激发光得第一波长光；The wavelength conversion device includes at least a wavelength conversion section and a non-wavelength conversion section. The wavelength conversion section is excited by the first excitation light to generate a second wavelength light, and the non-wavelength conversion section reflects The first excitation light obtains light of a first wavelength;
    所述光引导***还用于收集所述第一波长光和第二波长光，所述第一波长光和第二波长光在进入出射光通道前的主光轴平行且距离小于阈值。The light guiding system is also used to collect the first wavelength light and the second wavelength light, and the main optical axis of the first wavelength light and the second wavelength light before entering the exit light channel are parallel and the distance is less than a threshold.
  23. 如权利要求22所述的发光装置，其特征在于，所述光引导***包括中继透镜组件，所述中继透镜组件用于收集所述第一波长光和第二波长光，使得所述第一波长光和第二波长光按照预定光学扩展量进入所述出射光通道。The light emitting device according to claim 22, wherein the light guiding system comprises a relay lens assembly, and the relay lens assembly is used to collect the first wavelength light and the second wavelength light so that the first wavelength light The light of one wavelength and the light of the second wavelength enter the exit light channel according to a predetermined optical expansion amount.
  24. 如权利要求23所述的发光装置，其特征在于，所述光引导***至少包括第一光引导件和第二光引导件，所述第一光引导件设置在第二波长光的光路上，所述第一光引导件用于引导所述第二波长光；The light emitting device according to claim 23, wherein the light guiding system comprises at least a first light guiding member and a second light guiding member, the first light guiding member is arranged on the optical path of the second wavelength light, The first light guide is used to guide the second wavelength light;
    所述第二光引导件设置在第一波长光的光路上，所述第二光引导件用于引导所述第一波长光，使得在进入所述出射光通道前的所述第一波长光和所述第二波长光的主光轴重合。The second light guide is arranged on the optical path of the first wavelength light, and the second light guide is used to guide the first wavelength light so that the first wavelength light before entering the exit light channel Coincides with the main optical axis of the second wavelength light.
  25. 如权利要求1-24任一所述的发光装置，其特征在于，所述光引导***至少包括反射镜、透镜或光学膜片中的一种。The light-emitting device according to any one of claims 1-24, wherein the light guiding system includes at least one of a mirror, a lens, or an optical film.
  26. 如权利要求25所述的发光装置，其特征在于，所述光引导***包括曲面反射镜，用于改变入射光的方向和角分布；或者The light-emitting device according to claim 25, wherein the light guiding system comprises a curved mirror for changing the direction and angular distribution of incident light; or
    所述光学引导***包括平面反射镜与透镜，所述平面反射镜用于改变所述入射光的方向，所述透镜用于改变所述入射光的角分布。The optical guiding system includes a plane mirror and a lens, the plane mirror is used to change the direction of the incident light, and the lens is used to change the angular distribution of the incident light.
  27. 根据权利要求25所述的发光装置，其特征在于，所述光学引导***包括凸面反射镜、凹面反射镜、平面反射镜与凹透镜的组合或平面反射镜与凸透镜的组合。The light emitting device according to claim 25, wherein the optical guiding system comprises a convex reflector, a concave reflector, a combination of a flat reflector and a concave lens, or a combination of a flat reflector and a convex lens.
  28. 如权利要求1-24任一所述的发光装置，其特征在于，所述光源还包括第二光源，所述第二光源用于出射补偿光；5. The light-emitting device according to any one of claims 1-24, wherein the light source further comprises a second light source, and the second light source is used to emit compensation light;
    所述光引导***包括补偿光引导件，所述补偿光引导件设置于所述补偿光的光路上，其中所述补偿光引导件引导所述补偿光与所述第二波长光的光轴重合。The light guide system includes a compensation light guide, the compensation light guide is disposed on the optical path of the compensation light, wherein the compensation light guide guides the compensation light to coincide with the optical axis of the second wavelength light .
  29. 如权利要求1-24任一所述的发光装置，其特征在于，所述发光装置包括匀光装置，所述匀光装置设置于所述第一激发光的光路上，所述匀光装置用于对所述第一光源出射的第一激发光进行匀光，所述匀光装置包括复眼透镜组、积分棒或导光棒中的一种。The light-emitting device according to any one of claims 1-24, wherein the light-emitting device comprises a light homogenizing device, the light homogenizing device is arranged on the optical path of the first excitation light, and the light homogenizing device is used for To homogenize the first excitation light emitted by the first light source, the homogenization device includes one of a fly-eye lens group, an integrator rod, or a light guide rod.
  30. 如权利要求29所述的发光装置，其特征在于，所述复眼透镜组包括沿所述第一激发光方向依次设置的第一透镜阵列和第二透镜阵列，组成所述第一透镜阵列的各透镜单元在所述波长转换装置表面重叠成像。The light-emitting device according to claim 29, wherein the fly-eye lens group comprises a first lens array and a second lens array sequentially arranged along the direction of the first excitation light, and each of the first lens arrays The lens unit overlaps and forms images on the surface of the wavelength conversion device.
  31. 一种投影***，包括权利要求1-30任一所述的发光装置，还包括空间光调制***装置和镜头***。A projection system, comprising the light-emitting device according to any one of claims 1-30, and further comprising a spatial light modulation system device and a lens system.
PCT/CN2020/090762 2019-06-19 2020-05-18 Light-emitting device and projection system WO2020253434A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910529200.9A CN112114477B (en) 2019-06-19 2019-06-19 Light emitting device and projection system
CN201910529200.9 2019-06-19

Publications (1)

Publication Number Publication Date
WO2020253434A1 true WO2020253434A1 (en) 2020-12-24

Family

ID=73795180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/090762 WO2020253434A1 (en) 2019-06-19 2020-05-18 Light-emitting device and projection system

Country Status (2)

Country Link
CN (1) CN112114477B (en)
WO (1) WO2020253434A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7501477B2 (en) * 2021-09-14 2024-06-18 カシオ計算機株式会社 Light source device and projection device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106324962A (en) * 2012-12-28 2017-01-11 深圳市绎立锐光科技开发有限公司 Light-emitting device and projection system
US20170237953A1 (en) * 2016-02-12 2017-08-17 Seiko Epson Corporation Wavelength conversion element, illumination device, and projector
CN109557751A (en) * 2017-09-26 2019-04-02 深圳光峰科技股份有限公司 The optical projection system of light-source system and the application light-source system
CN109557753A (en) * 2017-09-26 2019-04-02 深圳光峰科技股份有限公司 Light-source system and projection arrangement
CN109557754A (en) * 2017-09-26 2019-04-02 深圳光峰科技股份有限公司 Light-source system and projection device
CN109870871A (en) * 2017-12-04 2019-06-11 深圳光峰科技股份有限公司 Light-source system and optical projection system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7547114B2 (en) * 2007-07-30 2009-06-16 Ylx Corp. Multicolor illumination device using moving plate with wavelength conversion materials
CN105652572B (en) * 2014-06-23 2017-07-28 深圳市绎立锐光科技开发有限公司 Light-source system and projector equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106324962A (en) * 2012-12-28 2017-01-11 深圳市绎立锐光科技开发有限公司 Light-emitting device and projection system
US20170237953A1 (en) * 2016-02-12 2017-08-17 Seiko Epson Corporation Wavelength conversion element, illumination device, and projector
CN109557751A (en) * 2017-09-26 2019-04-02 深圳光峰科技股份有限公司 The optical projection system of light-source system and the application light-source system
CN109557753A (en) * 2017-09-26 2019-04-02 深圳光峰科技股份有限公司 Light-source system and projection arrangement
CN109557754A (en) * 2017-09-26 2019-04-02 深圳光峰科技股份有限公司 Light-source system and projection device
CN109870871A (en) * 2017-12-04 2019-06-11 深圳光峰科技股份有限公司 Light-source system and optical projection system

Also Published As

Publication number Publication date
CN112114477B (en) 2023-03-21
CN112114477A (en) 2020-12-22

Similar Documents

Publication Publication Date Title
CN108572497B (en) Light source device and projection system
EP3598230B1 (en) Light source device and projection system
CN206671745U (en) Light supply apparatus and optical projection system
US9778553B2 (en) Light-emitting apparatus and a related projection system
CN109976078B (en) Light emitting device and projection system
US11402736B2 (en) Light source system and projection device
US9563109B2 (en) Light source device with wavelength conversion element and projector including the same
US20130100423A1 (en) Lighting device
US10732496B2 (en) Color wheel and laser projection apparatus
CN102681310A (en) Light source device and projector
WO2014101730A1 (en) Light-emitting device and related projection system
WO2018209722A1 (en) Projection light source with enhanced light intensity and projection system thereof
CN106324964A (en) Efficient laser projection system
TWI658292B (en) Illumination system and projection apparatus
WO2020253434A1 (en) Light-emitting device and projection system
WO2023179661A1 (en) Laser light source system and projection device
CN217606234U (en) Light source system and projector
WO2021143444A1 (en) Fly-eye lens group, light source device, and projection apparatus
WO2020135304A1 (en) Light source system and projection apparatus
CN220673074U (en) Optical element, laser light source and laser packaging module
WO2021143445A1 (en) Light source device and projection apparatus
WO2021037240A1 (en) Light source and projection device
CN117369201A (en) Light source system and projector
JPH11282085A (en) Video projecting device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20826364

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20826364

Country of ref document: EP

Kind code of ref document: A1