WO2017080407A1 - Optical fixing device, light source device, and projection equipment - Google Patents
Optical fixing device, light source device, and projection equipment Download PDFInfo
- Publication number
- WO2017080407A1 WO2017080407A1 PCT/CN2016/104716 CN2016104716W WO2017080407A1 WO 2017080407 A1 WO2017080407 A1 WO 2017080407A1 CN 2016104716 W CN2016104716 W CN 2016104716W WO 2017080407 A1 WO2017080407 A1 WO 2017080407A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- light source
- combining element
- mirror
- fixing
- Prior art date
Links
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
-
- 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
Definitions
- the present invention relates to the field of optics, and in particular to an optical fixture, a light source device, and a projection device.
- the existing light source device 101 using RGB three-color LED as a light source includes LED light source devices 102, 103, 104, coated glass sheets 105, 106, 107, a collecting lens 108 and a light rod 109.
- the LED light source devices 102, 103, 104 emit red, green, and blue light through the coated glass sheets 105, 106, 107 and the collecting lens 108, thereby generating white light concentrated on the light rod 109 to obtain a desired light source.
- the overall size of the LED light source device is too large and needs to be arranged in both horizontal and vertical directions, the overall size of the light source device is large, and in addition, the optical components located on the optical path of the LED light source device are more and positioned. The accuracy is high, but the optical components in the existing light source device 101 are respectively mounted on different fixed components. In order to ensure the relative position of the fixed components, the manufacturing precision of different fixed components is required to be high, thereby increasing the number of components. Cost of production.
- an object of the present invention to provide an optical fixing device having a compact outer shape, high relative positional accuracy of optical components, and low production cost, and another object of the present invention is to provide an optical fixing. Another object of the present invention is to provide a light source device.
- the optical fixing device further includes a first mirror fixing portion for fixing the first mirror and a first light combining member fixing portion for fixing the first light combining member,
- the first light combining element further reflects the light reflected by the first mirror to the second light combining element.
- the second mirror is plural, and the light source fixing portion is disposed on a horizontal surface, and is located at a first side of the second light combining element in a horizontal direction.
- the first mirror and the first light combining element are fixed to be perpendicular to the second light combining element, respectively, and the second mirror located on the second side of the second light combining element is fixed to
- the second light combining elements are parallel, and the acute angle of the second light combining element with the horizontal plane is 45°.
- the optical fixing device further includes a third mirror fixing portion for fixing the third mirror, wherein the solid state light source is an LED light source.
- the optical fixing device further includes a third mirror fixing portion for fixing the third mirror and a color wheel fixing portion for fixing the color wheel, the third The mirror reflects the concentrated excitation light to the color wheel to excite the wavelength converting material of the color wheel, the solid state light source being a laser light source or an LED light source.
- the third mirror fixing portion includes a rib extending toward the color wheel, and the third mirror is obliquely fixed to the rib relative to the color wheel on.
- the optical fixing device has a substantially funnel shape, the light source fixing portion is disposed at the funnel opening, and the first mirror fixing portion and the second mirror fixing portion respectively Arranging on a pair of inner inclined faces of the funnel, the collecting lens fixing portion is disposed at a neck of the funnel, and the first light combining element fixing portion and the second light combining element fixing portion are disposed at the funnel opening Between the neck and the neck, the third mirror fixing portion and the color wheel fixing portion are disposed at an end of the funnel opposite to the funnel opening, and a plate member is disposed at the funnel opening. A plurality of through holes as the light source fixing portions are opened on the plate member.
- the first mirror fixing portion, the second mirror fixing portion, the third mirror fixing portion, the first light combining member fixing portion, and the At least one of the second light-receiving element fixing portions includes at least two bosses having a hollow portion for filling the adhesive between adjacent ones of the bosses.
- the optical fixing device is integrally formed.
- a projection apparatus including the optical fixture in any of the above aspects.
- a light source device includes a light source queue, an aggregation system, a third mirror, and a wavelength conversion device, the wavelength conversion device including a color wheel and a driving device, wherein:
- the light source queue is formed by a plurality of light sources arranged in a line; the gathering system is located in a light exiting direction of the light source queue, and the light emitted from the light source queue is concentrated to a third mirror; the third mirror will be gathered The rear light is reflected to the color wheel; the color wheel is excited by the light reflected by the third mirror to generate a laser beam;
- the driving device includes a driving portion and a rotating shaft, and the rotating shaft and the color wheel Fixedly connected, the driving portion drives the rotating shaft to rotate, thereby driving the color wheel to rotate; the rotating shaft of the driving device is parallel to the light source queue.
- a portion of the wavelength conversion device that projects over 50% of the line on which the light source queue is located overlaps the light source queue.
- the color wheel is perpendicular to the rotation axis, and an intersection of a plane where the color wheel is located and the light source queue is located in a middle portion of the light source queue.
- the third mirror and the driving device are located on the same side of the color wheel.
- the rotating shaft is longer than the driving portion, and the third mirror is at least partially located in a space surrounded by the driving portion and the rotating shaft and the color wheel.
- the light source queue includes a first light source and a second light source, the first light source emits first light, and the second light source emits second light, the number of the first light source One or more, and the number of the second light sources is greater than or equal to one;
- the focusing system includes a second light combining element, a second mirror, and a collecting lens collecting lens;
- the second light combining element is located in at least one a second mirror disposed on a side of the exiting light of the first light source, the second mirror is disposed adjacent to the second light combining element;
- the second light combining element has a first light that transmits the first light and reflects the second light Characteristic, the second light combining element combines the first light and the second light incident thereon; at least one first light emitted by the first light source directly transmits the second combined light
- the element, and the second light emitted by the at least one of the second light sources are reflected by the second mirror to the second light combining element, and are reflected by the second
- the number of the second mirrors is greater than one, the second mirrors are arranged in a stepped second mirror array, each of the second mirrors and one of the The second light source is correspondingly disposed to reflect the second light emitted by the corresponding second light source to the second light combining element, and the second mirror array is directed to the second light along the light emitting direction of the light source queue The light-emitting elements gradually move closer together.
- the aggregation system further includes a first mirror and a first light combining element; the first mirror is disposed at a side of the second light combining element, and the a second mirror is located on an opposite side of the second light combining element; the first light combining element and the second light combining element are disposed, the first light combining element and the first mirror are located at the The same side of the second light combining element, and the first light combining element is disposed between the exit light paths of the two light sources in the light source queue, and does not block the light of the light source queue; the first The light combining element has a characteristic of reflecting the first light; the first light emitted by the at least one of the first light sources is reflected by the first mirror to the first light combining element, and continues through the first light combining element Reflected to the collecting lens.
- the first light combining element and the second light combining element are T-shaped.
- the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, and the first light emitted by the light source
- the second light combining element is incident on the condensing lens or directly on the condensing lens without passing through the second light combining element.
- the first light emitted by the first light source and the second light emitted by the second light source have different polarization states;
- the second light combining element is a polarizing plate, and the transmitting device The light of one of the first light and the second light is reflected and the light of the other polarization state is reflected.
- a light source device includes: a light source queue formed by a plurality of light sources arranged in a line; the light source queue includes a first light source and a second light source, a light source exiting the first light, the second light source exiting the second light; a first light combining element and a second light combining element, the first light combining element having a characteristic of reflecting the first light, the second light combining
- the element has a characteristic of transmitting the first light and reflecting the second light;
- the second light combining element is disposed on an outgoing light path of at least one of the first light sources located in a middle portion of the light source queue, and transmits the light a first light emitted from the first light source to the collecting lens; the first light combining element and the second light combining element are disposed, and the first light combining element is disposed in the light source queue Between the exiting optical paths of the two light sources, the light exiting the light source queue is not blocked; the first mirror is disposed on the first side of
- the number of the second mirrors is greater than one, the second mirrors are arranged in a stepped second mirror array, each of the second mirrors and one of the The second light source is correspondingly disposed to reflect the second light emitted by the corresponding second light source to the second light combining element, and the second mirror array is directed to the second light along the light emitting direction of the light source queue The light-emitting elements gradually move closer together.
- the number of the first mirrors is greater than one, the first mirrors are arranged in a stepped first mirror array, each of the first mirrors and one of the first mirrors
- the first light source is disposed to reflect the first light emitted by the corresponding first light source to the first light combining element, and the first mirror array is directed to the first light along the light emitting direction of the light source queue The light-emitting elements gradually move closer together.
- the first light combining element and the second light combining element are T-shaped.
- the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, and the first light emitted by the light source
- the second light combining element is incident on the condensing lens or directly on the condensing lens without passing through the second light combining element.
- the first light emitted by the first light source and the second light emitted by the second light source have different polarization states;
- the second light combining element is a polarizing plate, and the transmitting device The light of one of the first light and the second light is reflected and the light of the other polarization state is reflected.
- the optical fixing device provided by the invention has a plurality of optical components mounted thereon, and the optical fixing device not only accurately fixes the relative positions of the optical components, but also has a compact overall shape and helps the optical fixing device. To reduce the production cost of optical fixtures.
- FIG. 1 is a schematic structural view of a conventional light source device
- Figure 2 is a front elevational view of the light source fixing device of the present invention.
- Figure 3 is a plan view of the light source fixing device of the present invention.
- the present invention provides an optical fixture 200 for compactly securing a plurality of optical components thereon to achieve a reduction in optical fixture 200 as much as possible.
- the optical element described in the present invention is a collective term for a solid state light source, an optical lens, a lens, and the like.
- the optical fixing device 200 is further described below.
- the optical fixing device 200 includes a light source fixing portion 210, a first mirror fixing portion 220, a second mirror fixing portion 230, a second light combining member fixing portion 240, and a condensing lens fixing.
- the portion 250 is preferably a plurality of solid-state light sources arranged horizontally in a straight line, the light source fixing portion 210 is used for fixing a plurality of solid-state light sources, and the solid-state light source may be a laser light source or RGB three. Color LED light source (will be further explained later).
- the second mirror fixing portion 230 is configured to fix the second mirror disposed corresponding to a part of the solid-state light source. As an implementable manner, the light emitted by a part of the solid-state light source is reflected by the second mirror, and the other part of the solid-state light source is emitted.
- the light is incident directly onto the second light-combining element (described further below) or/and a concentrating lens (described further below), that is, preferably, the number of second mirrors is less than that of the solid state light source Quantity to save space and save costs.
- the solid-state light source may also be disposed in one-to-one correspondence with the second mirror.
- the number of solid-state light sources is small, this may be disadvantageous for obtaining a high luminance; and for a solid-state light source, the number is larger. In this case, since a large number of mirrors need to be arranged, this may cause the optical fixing device 200 to be large in size, which is also disadvantageous for miniaturization of the light source device.
- the second light combining element may also transmit only the unreflected light of the solid state light source or only the light reflected by the first mirror.
- the condensing lens fixing portion 250 is for fixing the condensing lens, and the condensing lens converges the light passing through the second illuminating element. It is easy to understand that the second illuminating element is preferably arranged such that its center is close to the condensing light.
- the optical axis of the lens in addition, when the light of a part of the solid-state light source is directly transmitted through the second light-combining element, the concentrating lens also converges the directly emitted light.
- the optical fixture 200 is provided with a first mirror fixing portion 220 opposite to the second mirror fixing portion 230, and the first mirror and the solid state light source fixed by the first mirror fixing portion 220
- the optical fixing device 200 further includes a first light combining element fixing portion 260 for fixing the first light combining element, the first light combining element further reflecting the light reflected by the first mirror to the second light combining element And further transmitted to the collecting lens via the second light combining element.
- the second mirror is provided in plurality, and in the horizontal direction, the first mirror and the second mirror are respectively located on the first side of the second light combining element and a second side, wherein the first mirror and the first light combining element on the first side of the second light combining element are fixed to be perpendicular to the second light combining element, respectively, on the second side of the second light combining element
- the second mirror is fixed in parallel with the second light combining element, and the second light combining element has an acute angle with the horizontal plane of 45°.
- the third mirror is fixed to other components than the optical fixture 200.
- the optical fixture 200 further includes a third for fixing the third mirror.
- the three-mirror fixing portion 270 when the solid-state light source adopts the RGB three-color LED light source, at this time, the second light-combining element can adopt a dichroic color chip, and the mixed light of the RGB three-color LED light source after being concentrated by the collecting lens is used as a follow-up A projection light source, the third mirror reflects and emits the mixed light.
- the third mirror fixing portion 270 includes the above-described color wheel fixing portion (not shown) for fixing the color wheel as a wavelength conversion material, and the third mirror reflects the concentrated excitation light to the color wheel.
- the laser generated by the wavelength converting material is mixed with the unabsorbed excitation light as a subsequent projection light source.
- the light source fixing portion 210, the first mirror fixing portion 220, the second mirror fixing portion 230, the second light combining element fixing portion 240, and the collecting lens fixing portion 250 are provided on the optical fixing device 200 as a whole.
- the first light combining element fixing portion 260, the third mirror fixing portion 270 and the optional color wheel fixing portion reduce the relative position error caused by the optical elements being respectively mounted on different fixing members. The risk, in turn, reduces production costs.
- the third mirror fixing portion 270 is provided with a rib extending toward the color wheel, and the third mirror fixed to the rib is inclined with respect to the color wheel.
- the optical fixing device 200 is disposed in a substantially funnel shape, that is, one end is large and the other end is gradually smaller, so that the optical fixing device 200 has a smaller size under the premise of fixing a plurality of in-line solid-state light sources.
- the outer dimensions of the light source fixing portion 210 are disposed at the funnel opening, and the first mirror fixing portion 220 and the second mirror fixing portion 230 are respectively disposed on a pair of inner inclined surfaces of the funnel, and the collecting lens fixing portion 250 is placed on the neck of the funnel,
- the first light combining element fixing portion 260 and the second light combining element fixing portion 240 are disposed between the funnel opening and the neck portion, and the third mirror fixing portion 270 and the color wheel fixing portion are disposed at an end opposite to the funnel opening, In the horizontal direction, although the size of the end portion is larger than that of the neck portion, the size of the end portion is still smaller than that of the funnel opening.
- the optical fixing device 200 is still similar to the inverted funnel shape, and the overall shape of the optical fixing device 200. It is also very compact.
- a plate member 280 is disposed at the funnel opening, and a plurality of through holes 281 are defined in the plate member 280, and the solid state light source is fixed in the through hole 281.
- the plate member 280 is a horizontal panel, and the plurality of through holes 281 are located on the same horizontal surface of the solid-state light source, thereby ensuring accurate positioning of the solid-state light source.
- the first mirror fixing portion 220, the second mirror fixing portion 230, the third mirror fixing portion 270, the first light combining member fixing portion 260, and the second light combining member are fixed.
- At least one, but preferably all, of the fixed portions 240 respectively include at least two bosses 290 with a hollow portion 291 for filling the adhesive between the two adjacent bosses 290. Therefore, the hollow portion 291 provides sufficient space for filling the adhesive, thereby ensuring that there is sufficient adhesive to fix the light source member, and the boss 290 can also provide a precise fixed reference surface for the optical member and avoid the adhesive. The spillover.
- the fixed reference surface of the light combining element fixing portion 260 and the third mirror fixing portion 270 is finally fixed to the fixed reference surface of the color wheel fixing portion.
- the dimensional accuracy of the optical fixture 200 for mounting and fixing the optical device can be well controlled to meet the requirements for use.
- the first side of the polarizer 330 faces the second opposite
- the first light combining element 350 faces the first mirror 320
- the first light combining element 350 adopts a mirror
- the polarizing plate 330 has an acute angle of 45° with the horizontal plane
- the light combining elements 350 are fixed to be perpendicular to the polarizing plate 330, respectively, and the excitation light emitted from the blue laser light sources 313 and 314 in the vertical direction is horizontally reflected by the second reflecting mirror 321, and then on the first side of the polarizing plate 330.
- the specific number and position of the portion 240 and the condensing lens fixing portion 250 may be set according to the number and arrangement of the blue laser light sources. For example, when the blue laser light source 310 is cancelled, correspondingly, it is unnecessary.
- the first mirror fixing portion 220 and the light combining member fixing portion 260 are provided, but this reduces the number of solid-state light sources, thereby being disadvantageous for obtaining a high light-emitting luminance.
- the concentrated excitation light is directed to the third mirror 360, and the third mirror 360 is fixed to the funnel facing the left side.
- the third mirror 360 extends toward the color wheel 370 on the rib extending from the opposite end of the mouth as the third mirror fixing portion 270.
- the color wheel 370 is fixedly coupled to the driving device 371 and driven at the driving device 371. The lower rotation operation is performed, and the driving device 371 is fixed at the above end by the boss type opening, thereby fixing the color wheel 370.
- the excitation light reflected by the third mirror 360 is incident on the excited surface of the color wheel 370 in a small spot, and the excited surface is uniformly distributed as a wavelength conversion material, such as a GRBW four-color phosphor, and then the phosphor
- the laser light is generated under the excitation of the blue laser and mixed to form a projection light source for subsequent use.
- the first mirror fixing portion 220, the second mirror fixing portion 230, the first light combining element fixing portion 260, the third mirror fixing portion 270, and the polarizing plate fixing portion 240 respectively have at least two bosses 290
- a hollow portion 291 for filling the adhesive is disposed between adjacent two bosses 290, and at least two bosses 290 of each fixing portion collectively form a fixed reference surface for fixing the respective optical element.
- the present invention also provides a projection apparatus, and in particular, a micro-projection apparatus requiring a minimum external dimension, which employs the optical fixture 200 of any of the above embodiments, with reference to the optical fixture 200 described above.
- the advantage is that since the outer dimensions of the optical fixing device 200 are compact and the outer dimensions of the projection device are reduced, the relative positional accuracy of the fixed optical components in the optical fixing device 200 is high, thereby improving the projection picture quality of the projection device. In addition, the production cost of the projection device is correspondingly reduced.
- a light source device includes a light source queue, an aggregation system, a third mirror, and a wavelength conversion device, the wavelength conversion device including a color wheel and a driving device, wherein:
- the light source queue is formed by a plurality of light sources arranged in a line;
- the aggregation system is located in a light exiting direction of the light source queue, and collects light emitted from the light source queue to a third mirror;
- the third mirror reflects the concentrated light to the color wheel
- the color wheel is excited by the light reflected by the third mirror to generate a laser beam
- the driving device includes a driving portion and a rotating shaft, the rotating shaft is fixedly connected to the color wheel, and the driving portion drives the rotating shaft to rotate, thereby driving the color wheel to rotate;
- the direction of the axis of rotation is also the direction of the central axis of the drive and is also the direction of the central axis of the wavelength conversion device.
- the rotation axis of the driving device is substantially parallel to the queue of the inline light source, and the components are arranged in the parallel direction of the light source queue instead of the other directions in the three-dimensional space.
- the length of the queue of the in-line light source is long, so that the volume of the external rectangular parallelepiped of the light source device can be reduced.
- the external rectangular parallelepiped of the light source device refers to the smallest rectangular parallelepiped that can surround the light source device. It is easy to understand that the volume of the housing that fixes or houses the light source device can be reduced.
- the light emitted by the light source queue is concentrated in the same plane to the third mirror, and the light emitted by the light source queue is emitted from the light path to the third mirror.
- the formed optical path is substantially in a parallel plane and the distance between the parallel planes is small, for example, less than 1 cm; or the formed optical path is substantially located at the intersecting plane and the parallel The angle of the plane is small, for example, less than 30 degrees.
- more than 50% of the projection of the wavelength conversion device on the line on which the light source queue is located overlaps the light source queue.
- the length of the light source device in the direction of the light source queue is saved.
- the projection of the wavelength conversion device on a line on which the light source queue is located is substantially on the light source queue.
- the color wheel is perpendicular to the axis of rotation, and the intersection of the plane of the color wheel and the light source queue is located substantially in the middle of the light source queue.
- the third mirror and the drive device are located on the same side of the color wheel. This embodiment can avoid the superposition of the length of the wavelength conversion device and the distance from the third mirror to the color wheel to cause an increase in the length of the light source device in the direction of the rotation axis, thereby contributing to reducing the volume of the light source conversion. Moreover, the light reflected back by the color wheel can continue to be reflected by the third mirror to the color wheel, so that the utilization of light can be improved.
- the rotating shaft is elongated relative to the driving portion, and the third mirror is at least partially located in a space surrounded by the driving portion and the rotating shaft and the color wheel.
- the space enclosed by the driving portion and the rotating shaft and the color wheel is effectively utilized, the length of the light source device in the light emitting direction of the light source queue is reduced, and the volume of the light source device can be reduced.
- the light source queue includes a first light source that emits first light, and a second light source that emits second light, the number of the first light sources being greater than or equal to one, And the number of the second light sources is greater than or equal to one;
- the collecting system includes a second light combining element, a second mirror, and a collecting lens;
- the second light combining element is located on an exiting light path of the at least one first light source, and the second mirror is disposed on a side of the second light combining element;
- the second light combining element has a characteristic of transmitting the first light and reflecting the second light, and the second light combining element combines the first light and the second light incident thereon Light;
- the first light emitted by the at least one first light source is directly transmitted through the second light combining element, and the second light emitted by the at least one second light source is reflected by the second mirror to the second light combining An element, and reflected by the second light combining element to the collecting lens;
- the condensing lens is located on an outgoing light path of the second light combining element, and the condensing lens concentrates light incident thereon to the third mirror.
- the second light combining element is located at the exiting optical path of the at least one first light source, and the first combined light transmits the first light incident thereon, so that the position of the light source queue opposite to the second light combining element can be avoided. Leaving a neutral position without a light source allows for a tight arrangement of the light sources on the light source queue.
- the number of the second mirrors is greater than one, and the second mirrors are arranged in a stepped second mirror array, each of the second mirrors being associated with one of the second light sources Correspondingly, the second light emitted by the corresponding second light source is reflected to the second light combining element, and the second mirror array is gradually extended toward the second light combining element along the light emitting direction of the light source queue Close together.
- the second light source that is emitted by the second mirror and reflected to the second light combining element is arranged in the tail or the head of the light source queue instead of the middle of the light source queue; it can be understood that if the second light source of the type contains more
- the second source of the class is arranged in a row or in a row at the end of the queue or the head of the queue.
- the aggregation system further includes a first mirror and a first light combining element
- the first mirror is disposed on a side of the second light combining element, and the second mirror is located on an opposite side of the second light combining element;
- the first light combining element is disposed to intersect with the second light combining element, the first light combining element and the first mirror are located on the same side of the second light combining element, and the first combination
- the light element is disposed between the exiting optical paths of the two light sources in the light source queue, and does not block the exit of the first light of the first light source; the first light combining element has a characteristic of reflecting the first light;
- the first light emitted by the at least one of the first light sources is reflected by the first mirror to the first light combining element and continues to be reflected by the first light combining element to the collecting lens.
- the first light source that is emitted by the first mirror and reflected by the first mirror to the first light combining element is arranged in the tail or the head of the light source queue instead of the middle of the light source queue; it is understood that if the first light source of the type contains more
- the first light source of the type is arranged in a row or in a row at the end of the queue or the head of the light source.
- the first light emitted by a part of the first light source (for example, the first light source of the queue of the inline light source or the first light source of the team head) is reflected by the first mirror to the first light combining element, so that the font can be reduced.
- the spot of the aligned light source queue is reflected by the first mirror to the first light combining element, so that the font can be reduced.
- the first light combining element is disposed between the exiting optical paths of the two light sources in the light source queue, and the light of the light source queue may not be blocked, so that the second light combining element may be opposite. Arranging the light source at the position of the light source queue helps to facilitate the compact arrangement of the light sources in the light source queue.
- the first light combining element and the second light combining element are T-shaped.
- the T-shape consists of two right angles, one of which is facing the light source queue.
- the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, the first light emitted by the light source is transmitted through the light
- the second light combining element is incident on the condensing lens or directly incident on the condensing lens without passing through the second light combining element.
- the first light emitted by the first light source and the second light emitted by the second light source have different polarization states
- the second light combining element is a polarizing plate that transmits light of one of the first light and the second light and reflects light of another polarization state.
- a light source device includes:
- first light combining element having a characteristic of reflecting the first light
- second light combining element having a characteristic of transmitting the first light and reflecting the second light
- first mirror disposed on a first side of the first light combining element and the second light combining element, and the first light combining element being located on a same side of the second light combining element
- the first light emitted by the at least one first light source at the first end of the light source queue is reflected to the first light combining element, and the first light combining element reflects the first light to the collecting lens;
- a second mirror disposed on the second side of the first light combining element and the second light combining element, and reflecting second light emitted by the at least one second light source located at the second end of the light source queue to the a second light combining element, the second light combining element reflects the second light to the collecting lens;
- the collecting lens is configured to collect light incident thereon.
- the number of the second mirrors is greater than one, and the second mirrors are arranged in a stepped second mirror array, each of the second mirrors being associated with one of the second light sources Correspondingly, the second light emitted by the corresponding second light source is reflected to the second light combining element, and the second mirror array is gradually extended toward the second light combining element along the light emitting direction of the light source queue Close together.
- the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, the first light emitted by the light source is transmitted through the light
- the second light combining element is incident on the condensing lens or directly enters the condensing lens without passing through the second light combining element.
- the light source device Since in some micro-projection devices, the light source device needs to meet a small volume requirement, even if the length of the in-line light source array including five light sources may not exceed 5 cm; the light source device contains more optical components. Therefore, it is necessary to distribute a large number of optical elements in a relatively small space, and it is also necessary to leave a certain space for the operations of bonding/fixing optical elements; this embodiment helps to meet these needs.
- the first light emitted by the first light source and the second light emitted by the second light source have different polarization states
- the second light combining element is a polarizing plate that transmits light of one of the first light and the second light and reflects light of another polarization state.
- the light source device in one embodiment provided herein is described below with reference to FIG.
- a light source device includes: a first light source 310, a first light source 311 and a first light source 312, and a second light source 313 and a second light source 314; further comprising a first light combining element 350, a second The light combining element 330, the first reflecting mirror 320, the two second reflecting mirrors 321, the collecting lens 340, the third reflecting mirror 360, and the wavelength conversion device.
- the wavelength conversion device includes a driving device 371 and a color wheel 370.
- the first light sources 310, 311, and 312 emit the first light of the first polarization state (eg, the S polarization state), and the second light sources 313 and 314 emit the second light of the second polarization state (eg, the P polarization state); the first polarization state Different from the second polarization state.
- the first light sources 310, 311 and 312 and the second light sources 313 and 314 are all blue laser light sources.
- Each light source is arranged in a line of light source queues.
- the first light source 310, the first light source 311, and the first light source 312 are continuously arranged, and the second light source 313 and the second light source 314 are continuously arranged.
- the second light combining element 330 is a polarizing plate, and the polarizing plate 330 is disposed on the outgoing light path of the first light source 312, and transmits the first light emitted by the first light source 312 to the collecting lens 340.
- the second light combining element 330 is disposed at an angle of 45 degrees to the light source queue.
- the first light combining element 350 is a mirror and is disposed in a T shape with the second light combining element 330.
- the first light combining element 350 and the second light combining element 330 intersect at a central portion of the second light combining element.
- the first light combining element 350 is disposed between the first light source 311 and the outgoing light path of the first light source 312, and does not block the light of the first light source 311 and the first light source 312.
- the two second mirrors 321 are arranged in a stepped second mirror array.
- the second mirror array gradually moves toward the second light combining element along the light emitting direction of the light source queue.
- the third mirror 360 reflects the concentrated light to the color wheel 370, exciting the wavelength converting material on 370 to produce a laser.
- the driving device 371 includes a driving portion and a rotating shaft.
- the rotating shaft is fixedly connected to the color wheel 370, and the driving portion drives the rotating shaft to rotate, thereby driving the color wheel 370 to rotate.
- the rotational axis of the drive unit 371 is parallel to the light source queue.
- the third mirror 360 and the driving device 371 are located on the same side of the color wheel 370.
- the rotating shaft is elongated relative to the driving portion, and the third reflecting mirror 360 is at least partially located in a space surrounded by the driving portion and the rotating shaft and the color wheel 370.
- the aggregation system is located in a light exiting direction of the light source queue, and collects light emitted from the light source queue to a third mirror;
- the color wheel is excited by the light reflected by the third mirror to generate a laser beam
- the driving device includes a driving portion and a rotating shaft, the rotating shaft is fixedly connected to the color wheel, and the driving portion drives the rotating shaft to rotate, thereby driving the color wheel to rotate;
- the axis of rotation of the drive device is parallel to the queue of light sources. Parallel to the axis of rotation of the drive device, it can be understood that the axis of rotation of the drive device is substantially parallel to the queue of light sources.
- the direction of the axis of rotation is also the direction of the central axis of the drive and is also the direction of the central axis of the wavelength conversion device.
- the light emitted by the light source queue is concentrated in the same plane to the third mirror, and the light emitted by the light source queue is emitted from the light path to the third mirror.
- the formed optical path is substantially in a parallel plane and the distance between the parallel planes is small, for example, less than 1 cm; or the formed optical path is substantially located at the intersecting plane and the parallel The angle of the plane is small, for example, less than 30 degrees.
- more than 50% of the projection of the wavelength conversion device on the line on which the light source queue is located overlaps the light source queue.
- the length of the light source device in the direction of the light source queue is saved.
- the projection of the wavelength conversion device on a line on which the light source queue is located is substantially on the light source queue.
- the color wheel is perpendicular to the axis of rotation, and the intersection of the plane of the color wheel and the light source queue is located substantially in the middle of the light source queue.
- the third mirror and the drive device are located on the same side of the color wheel. This embodiment can avoid the superposition of the length of the wavelength conversion device and the distance from the third mirror to the color wheel to cause an increase in the length of the light source device in the direction of the rotation axis, thereby contributing to reducing the volume of the light source conversion. Moreover, the light reflected back by the color wheel can continue to be reflected by the third mirror to the color wheel, so that the utilization of light can be improved.
- the rotating shaft is elongated relative to the driving portion, and the third mirror is at least partially located in a space surrounded by the driving portion and the rotating shaft and the color wheel.
- the space enclosed by the driving portion and the rotating shaft and the color wheel is effectively utilized, the length of the light source device in the light emitting direction of the light source queue is reduced, and the volume of the light source device can be reduced.
- the light source queue includes a first light source that emits first light, and a second light source that emits second light, the number of the first light sources being greater than or equal to one, And the number of the second light sources is greater than or equal to one;
- the collecting system includes a second light combining element, a second mirror, and a collecting lens;
- the second light combining element is located on an exiting light path of the at least one first light source, and the second mirror is disposed on a side of the second light combining element;
- the first light emitted by the at least one first light source is directly transmitted through the second light combining element, and the second light emitted by the at least one second light source is reflected by the second mirror to the second light combining An element, and reflected by the second light combining element to the collecting lens;
- the second light combining element is located at the exiting optical path of the at least one first light source, and the first combined light transmits the first light incident thereon, so that the position of the light source queue opposite to the second light combining element can be avoided. Leaving a neutral position without a light source allows for a tight arrangement of the light sources on the light source queue.
- the aggregation system further includes a first mirror and a first light combining element
- the first mirror is disposed on a side of the second light combining element, and the second mirror is located on an opposite side of the second light combining element;
- the first light combining element is disposed to intersect with the second light combining element, the first light combining element and the first mirror are located on the same side of the second light combining element, and the first combination
- the light element is disposed between the exiting optical paths of the two light sources in the light source queue, and does not block the exit of the first light of the first light source; the first light combining element has a characteristic of reflecting the first light;
- the first light combining element is disposed between the exiting optical paths of the two light sources in the light source queue, and the light of the light source queue may not be blocked, so that the second light combining element may be opposite. Arranging the light source at the position of the light source queue helps to facilitate the compact arrangement of the light sources in the light source queue.
- the first light combining element reflects the light of the first mirror and is disposed between the exit light paths of the two light sources in the light source queue, it is convenient for the first light combining element to face the light source queue.
- One side is provided with a support for fixing the first light combining element and the second light combining element, and the pillar can be supported and fixed with the entire area of the reverse surface of the reflecting surface of the first light combining element, and a small area of the second light combining element
- the phase support is fixed, which is based on the emission of light that does not block the light source queue.
- the first light combining element and the second light combining element are T-shaped.
- the T-shape consists of two right angles, one of which is facing the light source queue.
- the number of the first mirrors is greater than one, the first mirrors are arranged in a stepped first mirror array, and each of the first mirrors is coupled to one of the first light sources.
- the first light emitted by the corresponding first light source is reflected to the first light combining element, and the first mirror array is gradually extended toward the first light combining element along the light emitting direction of the light source queue Close together.
- the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, the first light emitted by the light source is transmitted through the light
- the second light combining element is incident on the condensing lens or directly incident on the condensing lens without passing through the second light combining element.
- the light source device Since in some micro-projection devices, the light source device needs to meet a small volume requirement, even if the length of the in-line light source array including five light sources may not exceed 5 cm; the light source device contains more optical components. Therefore, it is necessary to distribute a large number of optical elements in a relatively small space, and it is also necessary to leave a certain space for the operations of bonding/fixing optical elements; this embodiment helps to meet these needs.
- the first light emitted by the first light source and the second light emitted by the second light source have different polarization states
- the second light combining element is a polarizing plate that transmits light of one of the first light and the second light and reflects light of another polarization state.
- first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
- features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
- the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
An optical fixing device (200) comprises light source fixing parts (210) used for fixing a plurality of solid state light sources, second light combination element fixing parts (240) used for fixing at least one second light combination element, a condensing lens fixing part (250) used for fixing a condensing lens, and second reflecting mirror fixing parts (230). The second reflecting mirror fixing parts (230) are arranged corresponding to at least part of the plurality of solid state light sources, and the second reflecting mirror fixing parts (230) are used for fixing second reflecting mirrors. The second light combination elements are used for transmitting light which is emitted by part of the solid state light sources and is not reflected and/or are used for reflecting light reflected by the second reflecting mirrors; and the condensing lens is used for converging the light which passes through the second light combination elements. The optical fixing device (200) is compact in outline dimension and low in production cost; and optical elements fixed on the optical fixing device (200) are higher in accuracy of relative locations. The optical fixing device (200) can be used for a light source device and projection equipment.
Description
本发明涉及光学领域,具体涉及光学固定装置、光源装置及投影设备。The present invention relates to the field of optics, and in particular to an optical fixture, a light source device, and a projection device.
现有以RGB三色LED为光源的光源装置101包括LED光源器件102、103、104,镀膜玻璃片105、106、107,聚光透镜108以及光棒109.The existing light source device 101 using RGB three-color LED as a light source includes LED light source devices 102, 103, 104, coated glass sheets 105, 106, 107, a collecting lens 108 and a light rod 109.
LED光源器件102、103、104发出红光、绿光、蓝光,通过镀膜玻璃片105、106、107和聚光透镜108,从而产生白光汇聚于光棒109,获得所需要的光源。但是由于目前LED光源器件整体尺寸外形偏大且需要布置在水平和竖直两个方向,使得光源装置的整体外形尺寸较大,另外,位于LED光源器件的光路上的光学元件较多且对定位准确度要求高,但是现有光源装置101中的光学元件被分别安装在不同的固定部件上,为了保证各固定部件相对位置的精准,会造成对不同固定部件的制造精度要求高,从而增加了生产成本。
The LED light source devices 102, 103, 104 emit red, green, and blue light through the coated glass sheets 105, 106, 107 and the collecting lens 108, thereby generating white light concentrated on the light rod 109 to obtain a desired light source. However, due to the fact that the overall size of the LED light source device is too large and needs to be arranged in both horizontal and vertical directions, the overall size of the light source device is large, and in addition, the optical components located on the optical path of the LED light source device are more and positioned. The accuracy is high, but the optical components in the existing light source device 101 are respectively mounted on different fixed components. In order to ensure the relative position of the fixed components, the manufacturing precision of different fixed components is required to be high, thereby increasing the number of components. Cost of production.
为了克服现有技术的不足,本发明的一个目的是提供一种外形尺寸紧凑、光学元件相对位置准确度高、生产成本低的光学固定装置,本发明的另一个目的是提供一种具有光学固定装置的投影设备,本发明的又一个目的是提供一种光源装置。In order to overcome the deficiencies of the prior art, it is an object of the present invention to provide an optical fixing device having a compact outer shape, high relative positional accuracy of optical components, and low production cost, and another object of the present invention is to provide an optical fixing. Another object of the present invention is to provide a light source device.
作为本发明的一个目的,光学固定装置,包括:用于固定多个固态光源的光源固定部;与所述多个固态光源中的至少部分对应设置的第二反射镜固定部,所述第二反射镜固定部用于固定第二反射镜;用于固定至少一个第二合光元件的第二合光元件固定部,所述第二合光元件透射部分的所述固态光源所发出并且未经反射的光线或者/和反射由第二反射镜所反射的光线;用于固定聚光透镜的聚光透镜固定部,所述聚光透镜对经过第二合光元件后的光线进行会聚。As an object of the present invention, an optical fixing device includes: a light source fixing portion for fixing a plurality of solid-state light sources; a second mirror fixing portion corresponding to at least a portion of the plurality of solid-state light sources, the second a mirror fixing portion for fixing the second mirror; a second light combining member fixing portion for fixing the at least one second light combining member, wherein the solid light source of the transmitting portion of the second light combining member is emitted and not The reflected light or/and the reflected light reflected by the second mirror; the condensing lens fixing portion for fixing the condensing lens, the condensing lens condensing the light passing through the second combining element.
上述光学固定装置的又一个技术方案中,所述光学固定装置还包括用于固定第一反射镜的第一反射镜固定部和用于固定第一合光元件的第一合光元件固定部,所述第一合光元件将所述第一反射镜所反射的光线进一步反射至所述第二合光元件。In still another aspect of the optical fixing device, the optical fixing device further includes a first mirror fixing portion for fixing the first mirror and a first light combining member fixing portion for fixing the first light combining member, The first light combining element further reflects the light reflected by the first mirror to the second light combining element.
上述光学固定装置的又一个技术方案中,所述第二反射镜为多个,所述光源固定部布置在水平面上,在水平方向上,位于所述第二合光元件的第一侧的所述第一反射镜和所述第一合光元件被固定成分别与所述第二合光元件垂直,位于所述第二合光元件的第二侧的所述第二反射镜被固定成与所述第二合光元件平行,并且,所述第二合光元件与水平面的锐角夹角为45°。In still another aspect of the optical fixing device, the second mirror is plural, and the light source fixing portion is disposed on a horizontal surface, and is located at a first side of the second light combining element in a horizontal direction. The first mirror and the first light combining element are fixed to be perpendicular to the second light combining element, respectively, and the second mirror located on the second side of the second light combining element is fixed to The second light combining elements are parallel, and the acute angle of the second light combining element with the horizontal plane is 45°.
上述光学固定装置的又一个技术方案中,所述光学固定装置还包括用于固定第三反射镜的第三反射镜固定部,所述固态光源为LED光源。In still another aspect of the optical fixing device, the optical fixing device further includes a third mirror fixing portion for fixing the third mirror, wherein the solid state light source is an LED light source.
上述光学固定装置的又一个技术方案中,所述光学固定装置还包括用于固定第三反射镜的第三反射镜固定部和用于固定所述色轮的色轮固定部,所述第三反射镜将经会聚后的所述激发光反射至所述色轮以对所述色轮的波长转换材料进行激发,所述固态光源为激光光源或LED光源。In still another aspect of the optical fixing device, the optical fixing device further includes a third mirror fixing portion for fixing the third mirror and a color wheel fixing portion for fixing the color wheel, the third The mirror reflects the concentrated excitation light to the color wheel to excite the wavelength converting material of the color wheel, the solid state light source being a laser light source or an LED light source.
上述光学固定装置的又一个技术方案中,所述第三反射镜固定部包括朝所述色轮延伸的肋板,所述第三反射镜相对于所述色轮倾斜地固定于所述肋板上。
In still another aspect of the optical fixing device, the third mirror fixing portion includes a rib extending toward the color wheel, and the third mirror is obliquely fixed to the rib relative to the color wheel on.
上述光学固定装置的又一个技术方案中,所述光学固定装置为大致漏斗形状,所述光源固定部布置在漏斗口处,所述第一反射镜固定部和所述第二反射镜固定部分别布置在漏斗的一对内倾斜面上,所述聚光透镜固定部布置在漏斗的颈部,所述第一合光元件固定部和所述第二合光元件固定部布置在所述漏斗口和所述颈部之间,所述第三反射镜固定部和所述色轮固定部布置在所述漏斗的与所述漏斗口相对的端部,在所述漏斗口处设有一板件,在所述板件上开设有多个作为所述光源固定部的通孔。In still another aspect of the optical fixing device, the optical fixing device has a substantially funnel shape, the light source fixing portion is disposed at the funnel opening, and the first mirror fixing portion and the second mirror fixing portion respectively Arranging on a pair of inner inclined faces of the funnel, the collecting lens fixing portion is disposed at a neck of the funnel, and the first light combining element fixing portion and the second light combining element fixing portion are disposed at the funnel opening Between the neck and the neck, the third mirror fixing portion and the color wheel fixing portion are disposed at an end of the funnel opposite to the funnel opening, and a plate member is disposed at the funnel opening. A plurality of through holes as the light source fixing portions are opened on the plate member.
上述光学固定装置的又一个技术方案中,所述第一反射镜固定部、所述第二反射镜固定部、所述第三反射镜固定部、所述第一合光元件固定部和所述第二合光元件固定部中的至少一个包括至少两个凸台,在相邻的所述凸台之间具有用于填充粘合剂的中空部分。In still another aspect of the optical fixing device, the first mirror fixing portion, the second mirror fixing portion, the third mirror fixing portion, the first light combining member fixing portion, and the At least one of the second light-receiving element fixing portions includes at least two bosses having a hollow portion for filling the adhesive between adjacent ones of the bosses.
上述光学固定装置的又一个技术方案中,所述光学固定装置为一体成型。In still another aspect of the optical fixing device, the optical fixing device is integrally formed.
作为本发明的另一个目的,一种投影设备,所述投影设备包括上述任一技术方案中的光学固定装置。As another object of the present invention, a projection apparatus including the optical fixture in any of the above aspects.
作为本发明的又一个目的,一种光源装置,其特征在于,包括光源队列、聚集***、第三反射镜、和波长转换装置,所述波长转换装置包括色轮和驱动装置,其中:所述光源队列由呈一字型排列的多个光源形成;所述聚集***位于所述光源队列的出光方向,将所述光源队列出射的光聚集至第三反射镜;所述第三反射镜将聚集后的光反射至色轮;所述色轮受到所述第三反射镜反射的光的激发后,产生受激光;所述驱动装置包括驱动部和转动轴,所述转动轴与所述色轮固定连接,所述驱动部驱动所述转动轴转动,从而带动所述色轮转动;所述驱动装置的转动轴与所述光源队列平行。As still another object of the present invention, a light source device includes a light source queue, an aggregation system, a third mirror, and a wavelength conversion device, the wavelength conversion device including a color wheel and a driving device, wherein: The light source queue is formed by a plurality of light sources arranged in a line; the gathering system is located in a light exiting direction of the light source queue, and the light emitted from the light source queue is concentrated to a third mirror; the third mirror will be gathered The rear light is reflected to the color wheel; the color wheel is excited by the light reflected by the third mirror to generate a laser beam; the driving device includes a driving portion and a rotating shaft, and the rotating shaft and the color wheel Fixedly connected, the driving portion drives the rotating shaft to rotate, thereby driving the color wheel to rotate; the rotating shaft of the driving device is parallel to the light source queue.
上述光源装置的又一个技术方案中,所述波长转换装置在所述光源队列所在直线上的投影的超过50%的部分与所述光源队列重叠。In still another aspect of the above light source device, a portion of the wavelength conversion device that projects over 50% of the line on which the light source queue is located overlaps the light source queue.
上述光源装置的又一个技术方案中,所述色轮垂直于所述转动轴,所述色轮所在平面与所述光源队列的交点位于所述光源队列的中部。In still another aspect of the light source device, the color wheel is perpendicular to the rotation axis, and an intersection of a plane where the color wheel is located and the light source queue is located in a middle portion of the light source queue.
上述光源装置的又一个技术方案中,所述第三反射镜与所述驱动装置位于所述色轮的同一侧。In still another aspect of the above light source device, the third mirror and the driving device are located on the same side of the color wheel.
上述光源装置的又一个技术方案中,所述转动轴较所述驱动部细长,所述第三反射镜至少部分位于所述驱动部与所述转动轴以及所述色轮围成的空间内。In still another aspect of the light source device, the rotating shaft is longer than the driving portion, and the third mirror is at least partially located in a space surrounded by the driving portion and the rotating shaft and the color wheel. .
上述光源装置的又一个技术方案中,所述光源队列包括第一光源和第二光源,所述第一光源出射第一光,所述第二光源出射第二光,所述第一光源的数量大于等于一个,以及所述第二光源的数量大于等于一个;所述聚集***包括第二合光元件、第二反射镜和聚光透镜聚光透镜;所述第二合光元件位于至少一个所述第一光源的出射光路上,所述第二反射镜设置于所述第二合光元件的旁侧;所述第二合光元件具有透射所述第一光且反射所述第二光的特性,所述第二合光元件将入射至其上的所述第一光和所述第二光进行合光;至少一个所述第一光源出射的第一光直接透射所述第二合光元件,以及至少一个所述第二光源出射的第二光通过所述第二反射镜反射至所述第二合光元件,并通过所述第二合光元件反射至所述聚光透镜;
所述聚光透镜位于所述第二合光元件的出射光路上,所述聚光透镜将入射至其上的光聚集到所述第三反射镜。In still another aspect of the above light source device, the light source queue includes a first light source and a second light source, the first light source emits first light, and the second light source emits second light, the number of the first light source One or more, and the number of the second light sources is greater than or equal to one; the focusing system includes a second light combining element, a second mirror, and a collecting lens collecting lens; the second light combining element is located in at least one a second mirror disposed on a side of the exiting light of the first light source, the second mirror is disposed adjacent to the second light combining element; the second light combining element has a first light that transmits the first light and reflects the second light Characteristic, the second light combining element combines the first light and the second light incident thereon; at least one first light emitted by the first light source directly transmits the second combined light The element, and the second light emitted by the at least one of the second light sources are reflected by the second mirror to the second light combining element, and are reflected by the second light combining element to the collecting lens;
The condensing lens is located on an outgoing light path of the second light combining element, and the condensing lens concentrates light incident thereon to the third mirror.
上述光源装置的又一个技术方案中,所述第二反射镜的数量大于一个,所述第二反射镜排列成阶梯形的第二反射镜阵列,每一个所述第二反射镜与一个所述第二光源相对应设置,将对应的所述第二光源出射的第二光反射至所述第二合光元件,所述第二反射镜阵列沿所述光源队列的出光方向向所述第二合光元件逐渐靠拢。In still another aspect of the above light source device, the number of the second mirrors is greater than one, the second mirrors are arranged in a stepped second mirror array, each of the second mirrors and one of the The second light source is correspondingly disposed to reflect the second light emitted by the corresponding second light source to the second light combining element, and the second mirror array is directed to the second light along the light emitting direction of the light source queue The light-emitting elements gradually move closer together.
上述光源装置的又一个技术方案中,所述聚集***还包括第一反射镜和第一合光元件;所述第一反射镜设置于所述第二合光元件的旁侧,与所述第二反射镜位于所述第二合光元件的异侧;所述第一合光元件与所述第二合光元件交叉设置,所述第一合光元件与所述第一反射镜位于所述第二合光元件的同侧,且所述第一合光元件设置于所述光源队列中的两个光源的出射光路之间,不遮挡所述光源队列的光的出射;所述第一合光元件具有反射第一光的特性;至少一个所述第一光源出射的第一光通过所述第一反射镜反射至所述第一合光元件,并继续经所述第一合光元件反射至所述聚光透镜。In still another aspect of the above light source device, the aggregation system further includes a first mirror and a first light combining element; the first mirror is disposed at a side of the second light combining element, and the a second mirror is located on an opposite side of the second light combining element; the first light combining element and the second light combining element are disposed, the first light combining element and the first mirror are located at the The same side of the second light combining element, and the first light combining element is disposed between the exit light paths of the two light sources in the light source queue, and does not block the light of the light source queue; the first The light combining element has a characteristic of reflecting the first light; the first light emitted by the at least one of the first light sources is reflected by the first mirror to the first light combining element, and continues through the first light combining element Reflected to the collecting lens.
上述光源装置的又一个技术方案中,所述第一合光元件与所述第二合光元件成T型设置。In still another aspect of the above light source device, the first light combining element and the second light combining element are T-shaped.
上述光源装置的又一个技术方案中,所述第一光源还包括从所述第一反射镜和所述第一合光元件之间的通道出射第一光的光源,该光源出射的第一光透过所述第二合光元件入射至所述聚光透镜或者不透过所述第二合光元件而直接入射至所述聚光透镜。In still another aspect of the above light source device, the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, and the first light emitted by the light source The second light combining element is incident on the condensing lens or directly on the condensing lens without passing through the second light combining element.
上述光源装置的又一个技术方案中,所述第一光源出射的第一光和所述第二光源出射的第二光具有不同的偏振态;所述第二合光元件为偏振片,透射所述第一光和第二光中其中一种偏振态的光而反射另一种偏振态的光。In still another aspect of the above light source device, the first light emitted by the first light source and the second light emitted by the second light source have different polarization states; the second light combining element is a polarizing plate, and the transmitting device The light of one of the first light and the second light is reflected and the light of the other polarization state is reflected.
作为本发明的再一个目的,一种光源装置,其特征在于,包括:光源队列,由呈一字型排列的多个光源形成;所述光源队列包括第一光源和第二光源,所述第一光源出射第一光,所述第二光源出射第二光;第一合光元件和第二合光元件,所述第一合光元件具有反射第一光的特性,所述第二合光元件具有透射所述第一光且反射所述第二光的特性;所述第二合光元件设置于位于所述光源队列的中部的至少一个所述第一光源的出射光路上,并透射该至少一个所述第一光源出射的第一光至聚光透镜;所述第一合光元件与所述第二合光元件交叉设置,且所述第一合光元件设置于所述光源队列中的两个光源的出射光路之间,不遮挡所述光源队列的光的出射;第一反射镜,设置于所述第一合光元件和所述第二合光元件的第一侧,与所述第一合光元件位于所述第二合光元件的相同侧,将位于所述光源队列第一端的至少一个第一光源出射的第一光反射至所述第一合光元件,所述第一合光元件将所述第一光反射至所述聚光透镜;第二反射镜,设置于所述第一合光元件和所述第二合光元件的第二侧,将位于所述光源队列第二端的至少一个第二光源出射的第二光反射至所述第二合光元件,所述第二合光元件将所述第二光反射至所述聚光透镜;所述聚光透镜,用于将入射至其上的光进行聚集。According to still another object of the present invention, a light source device includes: a light source queue formed by a plurality of light sources arranged in a line; the light source queue includes a first light source and a second light source, a light source exiting the first light, the second light source exiting the second light; a first light combining element and a second light combining element, the first light combining element having a characteristic of reflecting the first light, the second light combining The element has a characteristic of transmitting the first light and reflecting the second light; the second light combining element is disposed on an outgoing light path of at least one of the first light sources located in a middle portion of the light source queue, and transmits the light a first light emitted from the first light source to the collecting lens; the first light combining element and the second light combining element are disposed, and the first light combining element is disposed in the light source queue Between the exiting optical paths of the two light sources, the light exiting the light source queue is not blocked; the first mirror is disposed on the first side of the first light combining element and the second light combining element, and The first light combining element is located at the second The same side of the light element reflects first light emitted by the at least one first light source at the first end of the light source queue to the first light combining element, the first light combining element reflects the first light a second reflecting mirror disposed on the second side of the first light combining element and the second light combining element, and emitting at least one second light source located at the second end of the light source queue The second light is reflected to the second light combining element, the second light combining element reflects the second light to the collecting lens; the collecting lens is configured to perform light incident thereon Gather.
上述光源装置的再一个技术方案中,所述第二反射镜的数量大于一个,所述第二反射镜排列成阶梯形的第二反射镜阵列,每一个所述第二反射镜与一个所述第二光源相对应设置,将对应的所述第二光源出射的第二光反射至所述第二合光元件,所述第二反射镜阵列沿所述光源队列的出光方向向所述第二合光元件逐渐靠拢。In still another aspect of the above light source device, the number of the second mirrors is greater than one, the second mirrors are arranged in a stepped second mirror array, each of the second mirrors and one of the The second light source is correspondingly disposed to reflect the second light emitted by the corresponding second light source to the second light combining element, and the second mirror array is directed to the second light along the light emitting direction of the light source queue The light-emitting elements gradually move closer together.
上述光源装置的再一个技术方案中,所述第一反射镜的数量大于一个,所述第一反射镜排列成阶梯形的第一反射镜阵列,每一个所述第一反射镜与一个所述第一光源相对应设置,将对应的所述第一光源出射的第一光反射至所述第一合光元件,所述第一反射镜阵列沿所述光源队列的出光方向向所述第一合光元件逐渐靠拢。In still another aspect of the above light source device, the number of the first mirrors is greater than one, the first mirrors are arranged in a stepped first mirror array, each of the first mirrors and one of the first mirrors Correspondingly, the first light source is disposed to reflect the first light emitted by the corresponding first light source to the first light combining element, and the first mirror array is directed to the first light along the light emitting direction of the light source queue The light-emitting elements gradually move closer together.
上述光源装置的再一个技术方案中,所述第一合光元件与所述第二合光元件成T型设置。In still another aspect of the light source device, the first light combining element and the second light combining element are T-shaped.
上述光源装置的再一个技术方案中,所述第一光源还包括从所述第一反射镜和所述第一合光元件之间的通道出射第一光的光源,该光源出射的第一光透过所述第二合光元件入射至所述聚光透镜或者不透过所述第二合光元件而直接入射至所述聚光透镜。In still another aspect of the above light source device, the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, and the first light emitted by the light source The second light combining element is incident on the condensing lens or directly on the condensing lens without passing through the second light combining element.
上述光源装置的再一个技术方案中,所述第一光源出射的第一光和所述第二光源出射的第二光具有不同的偏振态;所述第二合光元件为偏振片,透射所述第一光和第二光中其中一种偏振态的光而反射另一种偏振态的光。In still another aspect of the light source device, the first light emitted by the first light source and the second light emitted by the second light source have different polarization states; the second light combining element is a polarizing plate, and the transmitting device The light of one of the first light and the second light is reflected and the light of the other polarization state is reflected.
本发明提供的光学固定装置,该光学固定装置将多种光学元件安装固定于其上,光学固定装置不仅将各光学元件的相对位置准确固定,光学固定装置的整体外形也尺寸紧凑,并且有助于降低光学固定装置的生产成本。解决了现有技术中光源装置的整体外形尺寸较大、光源装置中的光学元件的定位准确度较难保证以及生产成本高的技术问题。
The optical fixing device provided by the invention has a plurality of optical components mounted thereon, and the optical fixing device not only accurately fixes the relative positions of the optical components, but also has a compact overall shape and helps the optical fixing device. To reduce the production cost of optical fixtures. The technical problem that the overall outer shape of the light source device in the prior art is large, the positioning accuracy of the optical component in the light source device is difficult to ensure, and the production cost is high is solved.
图1为现有光源装置的结构示意图;1 is a schematic structural view of a conventional light source device;
图2为本发明的光源固定装置的主视图;Figure 2 is a front elevational view of the light source fixing device of the present invention;
图3为本发明的光源固定装置的俯视图;Figure 3 is a plan view of the light source fixing device of the present invention;
图4为本发明的投影设备的光源固定装置中固定了光学元件的结构示意图。4 is a schematic view showing the structure in which an optical element is fixed in a light source fixing device of a projection apparatus of the present invention.
下面通过具体实施方式结合附图对本发明作进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings.
请参阅图2和图3所示,本发明提供了一种光学固定装置200,该光学固定装置200用于在其上紧凑地固定多种光学元件,以实现尽可能地减小光学固定装置200及包括该光学固定装置200的投影设备的外形尺寸,需要说明的是,本发明所描述的光学元件是对固态光源、光学镜片、透镜等的统称。以下对光学固定装置200做进一步的说明,光学固定装置200包括光源固定部210、第一反射镜固定部220、第二反射镜固定部230、第二合光元件固定部240和聚光透镜固定部250,为了获得较高的发光亮度,本发明优选地采用一字型水平排布的多个固态光源,光源固定部210用于将多个固态光源固定,固态光源可以采用激光光源或RGB三色LED光源(后续将作进一步说明)。第二反射镜固定部230上用于将与一部分固态光源对应设置的第二反射镜固定,作为一种可实施的方式,一部分固态光源发出的光线被第二反射镜反射,另一部分固态光源发出的光线直接入射到第二合光元件(以下将作进一步描述)或/和聚光透镜(以下将作进一步描述)上,也就是说,较佳的,第二反射镜的数量小于固态光源的数量,以节约空间及节省成本。另外,也可以将固态光源与第二反射镜一一对应地设置,但是,对于固态光源的数量较少的情形,这会不利于获得较高的发光亮度;而对于固态光源的数量较多的情形,由于需要布置较多的反射镜,这会造成光学固定装置200的尺寸偏大,也不利于光源设备的小型化。第二合光元件固定部240用于将至少一个第二合光元件固定,作为一种较佳的实施方式,当固态光源的数量较多时,为了使光学固定装置200的尺寸尽可能小,各固态光源被布置成彼此靠近,由于第二合光元件一般在固态光源的布置平面上的投影覆盖了至少一个固态光源,于是,例如被所述投影覆盖的一部分固态光源所发出的光线经第二合光元件所透射,一部分的固态光源所发出的光线先经第二反射镜所反射再经第二合光元件所反射,但是可以理解的是,对于固态光源的数量较少或者固态光源之间间隔较大等情形,第二合光元件也可以仅透射固态光源未经反射的光线或者仅反射经第一反射镜所反射的光线。聚光透镜固定部250用于固定聚光透镜,聚光透镜对经过第二合光元件后的光线进行会聚,容易理解的是,第二合光元件较优的是布置成其中心接近聚光透镜的光轴,另外,当有部分固态光源的光线未经过第二合光元件透射或反射而直接出射时,该聚光透镜也对直接出射的光线进行会聚。Referring to Figures 2 and 3, the present invention provides an optical fixture 200 for compactly securing a plurality of optical components thereon to achieve a reduction in optical fixture 200 as much as possible. And the external dimensions of the projection apparatus including the optical fixture 200, it is to be noted that the optical element described in the present invention is a collective term for a solid state light source, an optical lens, a lens, and the like. The optical fixing device 200 is further described below. The optical fixing device 200 includes a light source fixing portion 210, a first mirror fixing portion 220, a second mirror fixing portion 230, a second light combining member fixing portion 240, and a condensing lens fixing. The portion 250 is preferably a plurality of solid-state light sources arranged horizontally in a straight line, the light source fixing portion 210 is used for fixing a plurality of solid-state light sources, and the solid-state light source may be a laser light source or RGB three. Color LED light source (will be further explained later). The second mirror fixing portion 230 is configured to fix the second mirror disposed corresponding to a part of the solid-state light source. As an implementable manner, the light emitted by a part of the solid-state light source is reflected by the second mirror, and the other part of the solid-state light source is emitted. The light is incident directly onto the second light-combining element (described further below) or/and a concentrating lens (described further below), that is, preferably, the number of second mirrors is less than that of the solid state light source Quantity to save space and save costs. In addition, the solid-state light source may also be disposed in one-to-one correspondence with the second mirror. However, for a case where the number of solid-state light sources is small, this may be disadvantageous for obtaining a high luminance; and for a solid-state light source, the number is larger. In this case, since a large number of mirrors need to be arranged, this may cause the optical fixing device 200 to be large in size, which is also disadvantageous for miniaturization of the light source device. The second light combining element fixing portion 240 is for fixing at least one second light combining element. As a preferred embodiment, when the number of the solid state light sources is large, in order to make the size of the optical fixing device 200 as small as possible, each The solid state light sources are arranged close to each other, since the projection of the second light combining element generally on the arrangement plane of the solid state light source covers at least one solid state light source, then, for example, a portion of the solid state light source covered by the projection passes through the second The light emitted by the light-emitting element transmits a portion of the solid-state light source that is reflected by the second mirror and then reflected by the second light-combining element, but it is understood that the number of solid-state light sources is small or between the solid-state light sources. In the case of a large interval or the like, the second light combining element may also transmit only the unreflected light of the solid state light source or only the light reflected by the first mirror. The condensing lens fixing portion 250 is for fixing the condensing lens, and the condensing lens converges the light passing through the second illuminating element. It is easy to understand that the second illuminating element is preferably arranged such that its center is close to the condensing light. The optical axis of the lens, in addition, when the light of a part of the solid-state light source is directly transmitted through the second light-combining element, the concentrating lens also converges the directly emitted light.
为了配置较多的固定光源,光学固定装置200上设有与第二反射镜固定部230相对的第一反射镜固定部220,第一反射镜固定部220所固定的第一反射镜与固态光源一一对应,光学固定装置200还包括用于固定第一合光元件的第一合光元件固定部260,第一合光元件将第一反射镜所反射的光线进一步反射至第二合光元件,进而经第二合光元件元件透射至聚光透镜。In order to configure a plurality of fixed light sources, the optical fixture 200 is provided with a first mirror fixing portion 220 opposite to the second mirror fixing portion 230, and the first mirror and the solid state light source fixed by the first mirror fixing portion 220 In one-to-one correspondence, the optical fixing device 200 further includes a first light combining element fixing portion 260 for fixing the first light combining element, the first light combining element further reflecting the light reflected by the first mirror to the second light combining element And further transmitted to the collecting lens via the second light combining element.
为了配置较多的固态光源,并且光学元件布置得合理,第二反射镜设为多个,在水平方向上,第一反射镜和第二反射镜分别位于第二合光元件的第一侧和第二侧,其中,位于第二合光元件的第一侧的第一反射镜和第一合光元件被固定成分别与第二合光元件垂直,位于第二合光元件的第二侧的第二反射镜被固定成与第二合光元件平行,该第二合光元件与水平面的锐角夹角为45°。通过如此设置,第一反射镜和第二反射镜分别相较于第二合光元件相对布置,以便于将在水平方向上离第二合光元件和聚光透镜较远的固态光源的光线向第二合光元件反射,具体来说,位于第二合光元件的第一侧和第二侧的第一反射镜及第二反射镜将相对应的固态光源在竖直方向上发出的光线分别反射成水平方向的光线,以分别进一步被第二合光元件反射和被第一合光元件反射再被第二合光元件透射,从而得到多个平行的、竖直地入射聚光透镜的光线。In order to configure a plurality of solid state light sources, and the optical elements are arranged reasonably, the second mirror is provided in plurality, and in the horizontal direction, the first mirror and the second mirror are respectively located on the first side of the second light combining element and a second side, wherein the first mirror and the first light combining element on the first side of the second light combining element are fixed to be perpendicular to the second light combining element, respectively, on the second side of the second light combining element The second mirror is fixed in parallel with the second light combining element, and the second light combining element has an acute angle with the horizontal plane of 45°. By arranging, the first mirror and the second mirror are respectively arranged opposite to each other in the second light combining element, so as to light the solid light source farther away from the second light combining element and the collecting lens in the horizontal direction. The second light combining element reflects, specifically, the first mirror and the second mirror located on the first side and the second side of the second light combining element respectively emit light in a vertical direction of the corresponding solid light source The light reflected in the horizontal direction is further reflected by the second light combining element and reflected by the first light combining element and transmitted by the second light combining element, thereby obtaining a plurality of light rays that are incident on the collecting lens vertically. .
为了保证光学元件相对位置准确度高,相较于在光学固定装置200之外的其他部件上固定第三反射镜,作为进一步的优化,光学固定装置200还包括用于固定第三反射镜的第三反射镜固定部270,当固态光源采用RGB三色LED光源时,此时,第二合光元件可采用二向色片,该RGB三色LED光源经过聚光透镜会聚后的混合光作为后续投影光源,第三反射镜将该混合光反射并出射。当固态光源采用激光光源或RGB三色LED光源作为第三反射镜激发光来激发波长转换材料以产生受激光时,此时,第二合光元件可采用偏振片,因此,光学固定装置200除了包括上述的第三反射镜固定部270,还包括用于固定作为波长转换材料的色轮的色轮固定部(未图示),第三反射镜将经会聚后的激发光反射至色轮,波长转换材料产生的受激光与未被吸收的激发光混合以作为后续投影光源。如此,通过在作为一个整体的光学固定装置200上设置光源固定部210、第一反射镜固定部220、第二反射镜固定部230、第二合光元件固定部240、聚光透镜固定部250、第一合光元件固定部260、第三反射镜固定部270和可选的色轮固定部,减小了光学元件被分别安装在不同的固定部件上所带来的相对位置误差增大的风险,也进而降低了生产成本。In order to ensure high relative positional accuracy of the optical element, the third mirror is fixed to other components than the optical fixture 200. As a further optimization, the optical fixture 200 further includes a third for fixing the third mirror. The three-mirror fixing portion 270, when the solid-state light source adopts the RGB three-color LED light source, at this time, the second light-combining element can adopt a dichroic color chip, and the mixed light of the RGB three-color LED light source after being concentrated by the collecting lens is used as a follow-up A projection light source, the third mirror reflects and emits the mixed light. When the solid-state light source uses a laser light source or an RGB three-color LED light source as the third mirror excitation light to excite the wavelength conversion material to generate the laser light, at this time, the second light combining element can adopt a polarizing plate, and therefore, the optical fixing device 200 is apart from The third mirror fixing portion 270 includes the above-described color wheel fixing portion (not shown) for fixing the color wheel as a wavelength conversion material, and the third mirror reflects the concentrated excitation light to the color wheel. The laser generated by the wavelength converting material is mixed with the unabsorbed excitation light as a subsequent projection light source. In this way, the light source fixing portion 210, the first mirror fixing portion 220, the second mirror fixing portion 230, the second light combining element fixing portion 240, and the collecting lens fixing portion 250 are provided on the optical fixing device 200 as a whole. The first light combining element fixing portion 260, the third mirror fixing portion 270 and the optional color wheel fixing portion reduce the relative position error caused by the optical elements being respectively mounted on different fixing members. The risk, in turn, reduces production costs.
作为另一较优的实施例,第三反射镜固定部270设有朝色轮延伸的肋板,固定于肋板上的第三反射镜相对于色轮倾斜。通过将第三反射镜相对于色轮倾斜地设置,经过会聚的激发光被第三反射镜以较小光斑的方式反射至色轮的受激发面上,提高了激发光的激发效率。As another preferred embodiment, the third mirror fixing portion 270 is provided with a rib extending toward the color wheel, and the third mirror fixed to the rib is inclined with respect to the color wheel. By arranging the third mirror obliquely with respect to the color wheel, the concentrated excitation light is reflected by the third mirror to the excited surface of the color wheel by a small spot, thereby improving the excitation efficiency of the excitation light.
作为一种可实施的方式,光学固定装置200设置成大致漏斗形状,也就是一端大另一端渐小,以满足光学固定装置200在固定多个一字型排布的固态光源前提下具有较小的外形尺寸,具体来说,光源固定部210布置在漏斗口处,第一反射镜固定部220和第二反射镜固定部230分别布置在漏斗的一对内倾斜面上,聚光透镜固定部250布置在漏斗的颈部,
第一合光元件固定部260和第二合光元件固定部240布置在漏斗口和颈部之间,第三反射镜固定部270和色轮固定部布置在与漏斗口相对的端部,在水平方向上,虽然该端部的尺寸较颈部大,但端部的尺寸仍较漏斗口小,从整体来看,光学固定装置200仍类似于倒漏斗形状,且光学固定装置200的整体形状也很紧凑。在上述的漏斗口处设置一板件280,在板件280上开设有多个通孔281,固态光源被固定于通孔281之中。优选的,该板件280为一水平面板,多个通孔281对固态光源的定位面位于同一水平面上,从而保证了固态光源的定位准确。As an implementable manner, the optical fixing device 200 is disposed in a substantially funnel shape, that is, one end is large and the other end is gradually smaller, so that the optical fixing device 200 has a smaller size under the premise of fixing a plurality of in-line solid-state light sources. The outer dimensions of the light source fixing portion 210 are disposed at the funnel opening, and the first mirror fixing portion 220 and the second mirror fixing portion 230 are respectively disposed on a pair of inner inclined surfaces of the funnel, and the collecting lens fixing portion 250 is placed on the neck of the funnel,
The first light combining element fixing portion 260 and the second light combining element fixing portion 240 are disposed between the funnel opening and the neck portion, and the third mirror fixing portion 270 and the color wheel fixing portion are disposed at an end opposite to the funnel opening, In the horizontal direction, although the size of the end portion is larger than that of the neck portion, the size of the end portion is still smaller than that of the funnel opening. As a whole, the optical fixing device 200 is still similar to the inverted funnel shape, and the overall shape of the optical fixing device 200. It is also very compact. A plate member 280 is disposed at the funnel opening, and a plurality of through holes 281 are defined in the plate member 280, and the solid state light source is fixed in the through hole 281. Preferably, the plate member 280 is a horizontal panel, and the plurality of through holes 281 are located on the same horizontal surface of the solid-state light source, thereby ensuring accurate positioning of the solid-state light source.
为了获得对光学元件更好的固定效果,第一反射镜固定部220、第二反射镜固定部230、第三反射镜固定部270、第一合光元件固定部260和第二合光元件固定部240中至少一个但优选为全部的固定部分别包括至少两个凸台290,在两两相邻的凸台290之间具有用于填充粘合剂的中空部分291。因此,中空部分291既提供了足够的填充粘合剂的空间,从而保证有足够的粘合剂来固定光源元件,同时凸台290也能为光学元件提供精准的固定基准面并避免粘合剂的外溢。In order to obtain a better fixing effect on the optical element, the first mirror fixing portion 220, the second mirror fixing portion 230, the third mirror fixing portion 270, the first light combining member fixing portion 260, and the second light combining member are fixed. At least one, but preferably all, of the fixed portions 240 respectively include at least two bosses 290 with a hollow portion 291 for filling the adhesive between the two adjacent bosses 290. Therefore, the hollow portion 291 provides sufficient space for filling the adhesive, thereby ensuring that there is sufficient adhesive to fix the light source member, and the boss 290 can also provide a precise fixed reference surface for the optical member and avoid the adhesive. The spillover.
以上各实施例所述的光学固定装置200为一体成型,具体来说,光学固定装置200是模具成型或机加工成形的结构零件,光学元件装配位置的精度要求只需要一次装夹并配合数控加工中心的加工即可确保。以下以图3为例来说明光学固定装置200的制作过程。首先以聚光透镜固定部250为定位基础,加工光源固定部210的基准面A,然后加工第二合光元件固定部240、第一反射镜固定部220、第二反射镜固定部230、第一合光元件固定部260和第三反射镜固定部270的固定基准面,最后加工色轮固定部的固定基准面。依靠数控加工中心本身的加工精度就能很好控制光学固定装置200对光学器件安装及固定的尺寸精度,以满足使用要求。The optical fixing device 200 described in the above embodiments is integrally formed. Specifically, the optical fixing device 200 is a structural part formed by molding or machining, and the precision requirement of the assembly position of the optical component only needs to be clamped once and matched with numerical control processing. The processing of the center is ensured. The manufacturing process of the optical fixing device 200 will be described below by taking FIG. 3 as an example. First, the reference surface A of the light source fixing portion 210 is processed based on the positioning of the condensing lens fixing portion 250, and then the second light combining element fixing portion 240, the first mirror fixing portion 220, the second mirror fixing portion 230, and the second processing unit are processed. The fixed reference surface of the light combining element fixing portion 260 and the third mirror fixing portion 270 is finally fixed to the fixed reference surface of the color wheel fixing portion. Depending on the machining accuracy of the CNC machining center itself, the dimensional accuracy of the optical fixture 200 for mounting and fixing the optical device can be well controlled to meet the requirements for use.
为了对本发明做出更具体说明,以下以图4所示的采用5个固态光源为例,并参照图2和图3,来对上述的各实施方式做出详细说明。在大致倒漏斗形状的光学固定装置200的漏斗口处的板件280上开设有作为光源固定部210的5个通孔281,在5个通孔281中各分别固定装配了1个蓝色激光光源310、311、312、313、314,其中,优选的,蓝色激光光源310、311、312具有第一偏振态,蓝色激光光源313、314具有第二偏振态,位于光学固定装置200的左侧内倾斜面上和右侧内倾斜面上的第一反射镜固定部220上分别固定装配了一个第一反射镜320和两个第二反射镜321,在连接左侧倾斜面和右侧内倾斜面的底壁上设置了第二合光元件固定部240、第一合光元件固定部260和聚光透镜固定部250,聚光透镜固定部250位于第二合光元件固定部240和第一合光元件固定部260的上方,也就是聚光透镜340布置在大致漏斗颈部的位置,其中,第二合光元件固定部240上固定装配的第二合光元件采用偏振片330,偏振片330的第一面面对第二反射镜321,第一合光元件350面对第一反射镜320,第一合光元件350采用反射镜,偏振片330与水平面的锐角夹角为45°,并且,第一反射镜320和第一合光元件350被固定成分别与偏振片330垂直,由蓝色激光光源313和314在竖直方向上射出的激发光经第二反射镜321水平地反射之后,在偏振片330的第一面被进一步竖直地反射,由蓝色激光光源310在竖直方向上射出的激发光经第一反射镜320水平地反射之后,再被第一合光元件350竖直地反射并进一步经偏振片330的第二面透射进入聚光透镜340,对于其它部分的蓝色激光光源311和312,蓝色激光光源312未经反射就直接经偏振片330的第二面透射进入聚光透镜340,蓝色激光光源311未经偏振片330的反射和透射就直接射入聚光透镜340,因此,光源固定部210、第一反射镜固定部220、第二反射镜固定部230、第一合光元件固定部260、偏振片固定部240和聚光透镜固定部250的具体数量和位置的设置,可以根据蓝色激光光源的数量及排布方式而定,比如当取消上述蓝色激光光源310时,相应的,也就不需要设置第一反射镜固定部220和一合光元件固定部260了,但是这减少了固态光源的数量,从而不利于获得较高的发光亮度。在各激发光射入聚光透镜340,并被聚光透镜340会聚后,被会聚的激发光射向第三反射镜360,该第三反射镜360固定在由左侧内倾斜面向与上述漏斗口相对的端部延伸出的、作为第三反射镜固定部270的肋板上,第三反射镜360朝色轮370延伸,该色轮370与驱动装置371固定连接并在驱动装置371的驱动下旋转工作,并且驱动装置371在上述端部被轴套型的开孔所固定,从而将色轮370固定。经第三反射镜360反射的激发光以较小光斑的方式射向色轮370的受激发面上,该受激发面上均布有作为波长转换材料,比如GRBW四色荧光粉,于是荧光粉在蓝色激光的激发下产生受激光并混合后形成用于后续的投影光源。优选的,上述第一反射镜固定部220、第二反射镜固定部230、第一合光元件固定部260、第三反射镜固定部270和偏振片固定部240分别具有至少两个凸台290,在相邻两个凸台290之间设置了用于填充粘合剂的中空部分291,各固定部的至少两个凸台290共同形成用于固定相应光学元件的固定基准面。In order to more specifically explain the present invention, the above embodiments will be described in detail below by taking five solid-state light sources as shown in FIG. 4 as an example and referring to FIGS. 2 and 3. Five through holes 281 as the light source fixing portion 210 are opened on the plate member 280 at the funnel opening of the optical fixing device 200 of the substantially inverted funnel shape, and one blue laser is fixedly mounted in each of the five through holes 281. The light sources 310, 311, 312, 313, 314, wherein, preferably, the blue laser light sources 310, 311, 312 have a first polarization state, and the blue laser light sources 313, 314 have a second polarization state, located at the optical fixture 200. A first mirror 320 and two second mirrors 321 are fixedly mounted on the first mirror fixing portion 220 on the left inner inclined surface and the right inner inclined surface, respectively, and the left inclined surface and the right side are connected The second light combining element fixing portion 240, the first light combining element fixing portion 260, and the condensing lens fixing portion 250 are disposed on the bottom wall of the inner inclined surface, and the condensing lens fixing portion 250 is located at the second light combining element fixing portion 240 and The first light-collecting element fixing portion 260, that is, the collecting lens 340 is disposed at a position of the substantially funnel neck portion, wherein the second light-combining member fixedly assembled on the second light-combining element fixing portion 240 is a polarizing plate 330. The first side of the polarizer 330 faces the second opposite The first light combining element 350 faces the first mirror 320, the first light combining element 350 adopts a mirror, and the polarizing plate 330 has an acute angle of 45° with the horizontal plane, and the first mirror 320 and the first mirror The light combining elements 350 are fixed to be perpendicular to the polarizing plate 330, respectively, and the excitation light emitted from the blue laser light sources 313 and 314 in the vertical direction is horizontally reflected by the second reflecting mirror 321, and then on the first side of the polarizing plate 330. Further reflected vertically, the excitation light emitted by the blue laser light source 310 in the vertical direction is horizontally reflected by the first mirror 320, and then vertically reflected by the first light combining element 350 and further passed through the polarizing plate. The second side of the 330 is transmitted into the collecting lens 340. For the other portions of the blue laser light sources 311 and 312, the blue laser light source 312 is transmitted through the second side of the polarizing plate 330 directly into the collecting lens 340 without reflection. The color laser light source 311 is directly incident on the condensing lens 340 without being reflected and transmitted by the polarizing plate 330. Therefore, the light source fixing portion 210, the first mirror fixing portion 220, the second mirror fixing portion 230, and the first light combining element Fixing portion 260, polarizing plate solid The specific number and position of the portion 240 and the condensing lens fixing portion 250 may be set according to the number and arrangement of the blue laser light sources. For example, when the blue laser light source 310 is cancelled, correspondingly, it is unnecessary. The first mirror fixing portion 220 and the light combining member fixing portion 260 are provided, but this reduces the number of solid-state light sources, thereby being disadvantageous for obtaining a high light-emitting luminance. After each excitation light is incident on the condensing lens 340 and concentrated by the condensing lens 340, the concentrated excitation light is directed to the third mirror 360, and the third mirror 360 is fixed to the funnel facing the left side. The third mirror 360 extends toward the color wheel 370 on the rib extending from the opposite end of the mouth as the third mirror fixing portion 270. The color wheel 370 is fixedly coupled to the driving device 371 and driven at the driving device 371. The lower rotation operation is performed, and the driving device 371 is fixed at the above end by the boss type opening, thereby fixing the color wheel 370. The excitation light reflected by the third mirror 360 is incident on the excited surface of the color wheel 370 in a small spot, and the excited surface is uniformly distributed as a wavelength conversion material, such as a GRBW four-color phosphor, and then the phosphor The laser light is generated under the excitation of the blue laser and mixed to form a projection light source for subsequent use. Preferably, the first mirror fixing portion 220, the second mirror fixing portion 230, the first light combining element fixing portion 260, the third mirror fixing portion 270, and the polarizing plate fixing portion 240 respectively have at least two bosses 290 A hollow portion 291 for filling the adhesive is disposed between adjacent two bosses 290, and at least two bosses 290 of each fixing portion collectively form a fixed reference surface for fixing the respective optical element.
本发明还提供了一种投影设备,尤其可以是一种要求外形尺寸尽可能小的微型投影设备,其采用上述任一实施例所述的光学固定装置200,参照以上所描述的光学固定装置200所具有的优点,由于光学固定装置200的外形尺寸紧凑相应地使投影设备的外形尺寸被减小,光学固定装置200中固定的光学元件的相对位置准确度高从而提高了投影设备的投影画面质量,另外,投影设备的生产成本也相应被降低。The present invention also provides a projection apparatus, and in particular, a micro-projection apparatus requiring a minimum external dimension, which employs the optical fixture 200 of any of the above embodiments, with reference to the optical fixture 200 described above. The advantage is that since the outer dimensions of the optical fixing device 200 are compact and the outer dimensions of the projection device are reduced, the relative positional accuracy of the fixed optical components in the optical fixing device 200 is high, thereby improving the projection picture quality of the projection device. In addition, the production cost of the projection device is correspondingly reduced.
在一个实施例中,一种光源装置,包括光源队列、聚集***、第三反射镜、和波长转换装置,波长转换装置包括色轮和驱动装置,其中:In one embodiment, a light source device includes a light source queue, an aggregation system, a third mirror, and a wavelength conversion device, the wavelength conversion device including a color wheel and a driving device, wherein:
所述光源队列由呈一字型排列的多个光源形成;The light source queue is formed by a plurality of light sources arranged in a line;
所述聚集***位于所述光源队列的出光方向,将所述光源队列出射的光聚集至第三反射镜;The aggregation system is located in a light exiting direction of the light source queue, and collects light emitted from the light source queue to a third mirror;
所述第三反射镜将聚集后的光反射至色轮;The third mirror reflects the concentrated light to the color wheel;
所述色轮受到所述第三反射镜反射的光的激发后,产生受激光;The color wheel is excited by the light reflected by the third mirror to generate a laser beam;
所述驱动装置包括驱动部和转动轴,所述转动轴与所述色轮固定连接,所述驱动部驱动所述转动轴转动,从而带动所述色轮转动;The driving device includes a driving portion and a rotating shaft, the rotating shaft is fixedly connected to the color wheel, and the driving portion drives the rotating shaft to rotate, thereby driving the color wheel to rotate;
所述驱动装置的转动轴与所述光源队列平行。所述驱动装置的转动轴与所述光源队列平行可以理解为所述驱动装置的转动轴与所述光源队列大致平行。The axis of rotation of the drive device is parallel to the queue of light sources. Parallel to the axis of rotation of the drive device, it can be understood that the axis of rotation of the drive device is substantially parallel to the queue of light sources.
转动轴的方向也即驱动装置的中心轴方向,同时也是波长转换装置的中心轴方向。The direction of the axis of rotation is also the direction of the central axis of the drive and is also the direction of the central axis of the wavelength conversion device.
由于光源队列呈一字型,长度相对较长,本实施例中,驱动装置的转动轴与一字型光源队列大致平行,在光源队列的平行方向而不是在三维空间的其它方向设置元件,配合了一字型光源队列长度较长的特点,从而可以减小光源装置的外接长方体的体积。所谓光源装置的外接长方体指的是可以包围光源装置的最小的长方体。容易理解的,从而可以减小固定或容纳光源装置的壳体的体积。Since the light source queue has a font shape and a relatively long length, in this embodiment, the rotation axis of the driving device is substantially parallel to the queue of the inline light source, and the components are arranged in the parallel direction of the light source queue instead of the other directions in the three-dimensional space. The length of the queue of the in-line light source is long, so that the volume of the external rectangular parallelepiped of the light source device can be reduced. The external rectangular parallelepiped of the light source device refers to the smallest rectangular parallelepiped that can surround the light source device. It is easy to understand that the volume of the housing that fixes or houses the light source device can be reduced.
在一个实施例中,所述光源队列出射的光大致在同一平面内被聚集到所述第三反射镜,所述光源队列出射的光从出射至到达所述第三反射镜所形成的光路大致位于同一平面;或者,该所形成的光路大致位于平行的平面且该平行的平面之间的距离较小,例如,小于1厘米;或者,该所形成的光路大致位于相交的平面且该平行的平面的夹角较小,例如,小于30度。In one embodiment, the light emitted by the light source queue is concentrated in the same plane to the third mirror, and the light emitted by the light source queue is emitted from the light path to the third mirror. Located in the same plane; or, the formed optical path is substantially in a parallel plane and the distance between the parallel planes is small, for example, less than 1 cm; or the formed optical path is substantially located at the intersecting plane and the parallel The angle of the plane is small, for example, less than 30 degrees.
在一个实施例中,所述波长转换装置在所述光源队列所在直线上的投影的超过50%的部分与所述光源队列重叠。本实施例中节省了光源装置在光源队列方向上的长度。
In one embodiment, more than 50% of the projection of the wavelength conversion device on the line on which the light source queue is located overlaps the light source queue. In this embodiment, the length of the light source device in the direction of the light source queue is saved.
在一个实施例中,所述波长转换装置在所述光源队列所在直线上的投影大致位于所述光源队列上。In one embodiment, the projection of the wavelength conversion device on a line on which the light source queue is located is substantially on the light source queue.
在一个实施例中,所述色轮垂直于所述转动轴,所述色轮所在平面与所述光源队列的交点大致位于所述光源队列的中部。In one embodiment, the color wheel is perpendicular to the axis of rotation, and the intersection of the plane of the color wheel and the light source queue is located substantially in the middle of the light source queue.
在一个实施例中,所述第三反射镜与所述驱动装置位于所述色轮的同一侧。本实施例可以避免波长转换装置的长度与第三反射镜至色轮的距离的叠加而造成光源装置在转动轴方向上的长度的增大,从而有助于减少光源转换的体积。而且,被色轮反射回的光可以继续经第三反射镜反射至色轮,从而可以提高光的利用率。In one embodiment, the third mirror and the drive device are located on the same side of the color wheel. This embodiment can avoid the superposition of the length of the wavelength conversion device and the distance from the third mirror to the color wheel to cause an increase in the length of the light source device in the direction of the rotation axis, thereby contributing to reducing the volume of the light source conversion. Moreover, the light reflected back by the color wheel can continue to be reflected by the third mirror to the color wheel, so that the utilization of light can be improved.
在一个实施例中,所述转动轴较所述驱动部细长,所述第三反射镜至少部分位于所述驱动部与所述转动轴以及所述色轮围成的空间内。本实施例中,有效地利用了所述驱动部与所述转动轴以及所述色轮围成的空间,减少了光源装置在光源队列的出光方向上的长度,从而可以减小光源装置的体积。In one embodiment, the rotating shaft is elongated relative to the driving portion, and the third mirror is at least partially located in a space surrounded by the driving portion and the rotating shaft and the color wheel. In this embodiment, the space enclosed by the driving portion and the rotating shaft and the color wheel is effectively utilized, the length of the light source device in the light emitting direction of the light source queue is reduced, and the volume of the light source device can be reduced. .
在一个实施例中,所述光源队列包括第一光源和第二光源,所述第一光源出射第一光,所述第二光源出射第二光,所述第一光源的数量大于等于一个,以及所述第二光源的数量大于等于一个;In one embodiment, the light source queue includes a first light source that emits first light, and a second light source that emits second light, the number of the first light sources being greater than or equal to one, And the number of the second light sources is greater than or equal to one;
所述聚集***包括第二合光元件、第二反射镜和聚光透镜;The collecting system includes a second light combining element, a second mirror, and a collecting lens;
所述第二合光元件位于至少一个所述第一光源的出射光路上,所述第二反射镜设置于所述第二合光元件的旁侧;The second light combining element is located on an exiting light path of the at least one first light source, and the second mirror is disposed on a side of the second light combining element;
所述第二合光元件具有透射所述第一光且反射所述第二光的特性,所述第二合光元件将入射至其上的所述第一光和所述第二光进行合光;The second light combining element has a characteristic of transmitting the first light and reflecting the second light, and the second light combining element combines the first light and the second light incident thereon Light;
至少一个所述第一光源出射的第一光直接透射所述第二合光元件,以及至少一个所述第二光源出射的第二光通过所述第二反射镜反射至所述第二合光元件,并通过所述第二合光元件反射至所述聚光透镜;
The first light emitted by the at least one first light source is directly transmitted through the second light combining element, and the second light emitted by the at least one second light source is reflected by the second mirror to the second light combining An element, and reflected by the second light combining element to the collecting lens;
所述聚光透镜位于所述第二合光元件的出射光路上,所述聚光透镜将入射至其上的光聚集到所述第三反射镜。The condensing lens is located on an outgoing light path of the second light combining element, and the condensing lens concentrates light incident thereon to the third mirror.
本实施例中,第二合光元件位于至少一个第一光源的出射光路的,第一合光透射入射至其上的第一光,从而可以避免光源队列与第二合光元件相对的位置留有空档而没有设置光源,可以实现光源队列上的光源的紧密排布。In this embodiment, the second light combining element is located at the exiting optical path of the at least one first light source, and the first combined light transmits the first light incident thereon, so that the position of the light source queue opposite to the second light combining element can be avoided. Leaving a neutral position without a light source allows for a tight arrangement of the light sources on the light source queue.
在一个实施例中,所述第二反射镜的数量大于一个,所述第二反射镜排列成阶梯形的第二反射镜阵列,每一个所述第二反射镜与一个所述第二光源相对应设置,将对应的所述第二光源出射的第二光反射至所述第二合光元件,所述第二反射镜阵列沿所述光源队列的出光方向向所述第二合光元件逐渐靠拢。In one embodiment, the number of the second mirrors is greater than one, and the second mirrors are arranged in a stepped second mirror array, each of the second mirrors being associated with one of the second light sources Correspondingly, the second light emitted by the corresponding second light source is reflected to the second light combining element, and the second mirror array is gradually extended toward the second light combining element along the light emitting direction of the light source queue Close together.
出射的第二光通过第二反射镜反射至第二合光元件的第二光源排列于光源队列的队尾或队首而非光源队列的中部;可以理解的,若该类第二光源包含多个,则该类第二光源集中排列于或者说连续排列于光源队列的队尾或队首。The second light source that is emitted by the second mirror and reflected to the second light combining element is arranged in the tail or the head of the light source queue instead of the middle of the light source queue; it can be understood that if the second light source of the type contains more The second source of the class is arranged in a row or in a row at the end of the queue or the head of the queue.
在一个实施例中,所述聚集***还包括第一反射镜和第一合光元件;In one embodiment, the aggregation system further includes a first mirror and a first light combining element;
所述第一反射镜设置于所述第二合光元件的旁侧,与所述第二反射镜位于所述第二合光元件的异侧;The first mirror is disposed on a side of the second light combining element, and the second mirror is located on an opposite side of the second light combining element;
所述第一合光元件与所述第二合光元件交叉设置,所述第一合光元件与所述第一反射镜位于所述第二合光元件的同侧,且所述第一合光元件设置于所述光源队列中的两个光源的出射光路之间,不遮挡所述第一光源的第一光的出射;所述第一合光元件具有反射第一光的特性;The first light combining element is disposed to intersect with the second light combining element, the first light combining element and the first mirror are located on the same side of the second light combining element, and the first combination The light element is disposed between the exiting optical paths of the two light sources in the light source queue, and does not block the exit of the first light of the first light source; the first light combining element has a characteristic of reflecting the first light;
至少一个所述第一光源出射的第一光通过所述第一反射镜反射至所述第一合光元件,并继续经所述第一合光元件反射至所述聚光透镜。The first light emitted by the at least one of the first light sources is reflected by the first mirror to the first light combining element and continues to be reflected by the first light combining element to the collecting lens.
出射的第一光通过第一反射镜反射至第一合光元件的第一光源排列于光源队列的队尾或队首而非光源队列的中部;可以理解的,若该类第一光源包含多个,则该类第一光源集中排列于或者说连续排列于光源队列的队尾或队首。The first light source that is emitted by the first mirror and reflected by the first mirror to the first light combining element is arranged in the tail or the head of the light source queue instead of the middle of the light source queue; it is understood that if the first light source of the type contains more The first light source of the type is arranged in a row or in a row at the end of the queue or the head of the light source.
本实施例中,部分第一光源(例如一字型光源队列队尾或队首的第一光源)出射的第一光经第一反射镜反射至第一合光元件,可以减小一字型排列的光源队列出射的光斑。In this embodiment, the first light emitted by a part of the first light source (for example, the first light source of the queue of the inline light source or the first light source of the team head) is reflected by the first mirror to the first light combining element, so that the font can be reduced. The spot of the aligned light source queue.
而且,本实施例中,第一合光元件设置于所述光源队列中的两个光源的出射光路之间,可以不遮挡光源队列的光的出射,从而使得可以在第二合光元件相对于光源队列的位置排布光源,有助于光源队列中光源的紧凑排布。Moreover, in this embodiment, the first light combining element is disposed between the exiting optical paths of the two light sources in the light source queue, and the light of the light source queue may not be blocked, so that the second light combining element may be opposite. Arranging the light source at the position of the light source queue helps to facilitate the compact arrangement of the light sources in the light source queue.
另外,由于第一合光元件反射第一反射镜的光、且设置于所述光源队列中的两个光源的出射光路之间,因此,可方便于在第一合光元件朝向光源队列的一侧设置支柱支撑固定第一合光元件和第二合光元件,该支柱可以与第一合光元件的反射面的反面的全部面积相支撑固定,以及与第二合光元件的小部分面积相支撑固定,以不遮挡光源队列的光的出射为准。In addition, since the first light combining element reflects the light of the first mirror and is disposed between the exit light paths of the two light sources in the light source queue, it is convenient for the first light combining element to face the light source queue. One side is provided with a support for fixing the first light combining element and the second light combining element, and the pillar can be supported and fixed with the entire area of the reverse surface of the reflecting surface of the first light combining element, and a small area of the second light combining element The phase support is fixed, which is based on the emission of light that does not block the light source queue.
在一个实施例中,所述第一合光元件与所述第二合光元件成T型设置。T型包含两个直角,其中一个直角面向光源队列。In one embodiment, the first light combining element and the second light combining element are T-shaped. The T-shape consists of two right angles, one of which is facing the light source queue.
在一个实施例中,所述第一反射镜的数量大于一个,所述第一反射镜排列成阶梯形的第一反射镜阵列,每一个所述第一反射镜与一个所述第一光源相对应设置,将对应的所述第一光源出射的第一光反射至所述第一合光元件,所述第一反射镜阵列沿所述光源队列的出光方向向所述第一合光元件逐渐靠拢。In one embodiment, the number of the first mirrors is greater than one, the first mirrors are arranged in a stepped first mirror array, and each of the first mirrors is coupled to one of the first light sources. Correspondingly, the first light emitted by the corresponding first light source is reflected to the first light combining element, and the first mirror array is gradually extended toward the first light combining element along the light emitting direction of the light source queue Close together.
在一个实施例中,所述第一光源还包括从所述第一反射镜和所述第一合光元件之间的通道出射第一光的光源,该光源出射的第一光透过所述第二合光元件入射至所述聚光透镜或者不透过所述第二合光元件直接入射至所述聚光透镜。In one embodiment, the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, the first light emitted by the light source is transmitted through the light The second light combining element is incident on the condensing lens or directly incident on the condensing lens without passing through the second light combining element.
由于在一些微型投影设备中,光源装置需要满足体积较小的需求,其中即使包含5个光源的一字型光源阵列的长度也可能不超过5厘米;而光源装置所包含的光学元件又比较多,因此,在比较狭小的空间内需要分布较多的光学元件,而且,还需要给粘接/固定光学元件这些操作留有一定的空间;本实施例有助于适应这些需求。Since in some micro-projection devices, the light source device needs to meet a small volume requirement, even if the length of the in-line light source array including five light sources may not exceed 5 cm; the light source device contains more optical components. Therefore, it is necessary to distribute a large number of optical elements in a relatively small space, and it is also necessary to leave a certain space for the operations of bonding/fixing optical elements; this embodiment helps to meet these needs.
在一个实施例中,所述第一光源出射的第一光和所述第二光源出射的第二光具有不同的偏振态;In one embodiment, the first light emitted by the first light source and the second light emitted by the second light source have different polarization states;
所述第二合光元件为偏振片,透射所述第一光和第二光中其中一种偏振态的光而反射另一种偏振态的光。The second light combining element is a polarizing plate that transmits light of one of the first light and the second light and reflects light of another polarization state.
在一个实施例中,一种光源装置,包括:In one embodiment, a light source device includes:
光源队列,由呈一字型排列的多个光源形成;所述光源队列包括第一光源和第二光源,所述第一光源出射第一光,所述第二光源出射第二光;a light source queue formed by a plurality of light sources arranged in a line; the light source queue includes a first light source and a second light source, the first light source exiting the first light, and the second light source exiting the second light;
第一合光元件和第二合光元件,所述第一合光元件具有反射第一光的特性,所述第二合光元件具有透射所述第一光且反射所述第二光的特性;a first light combining element having a characteristic of reflecting the first light, and a second light combining element having a characteristic of transmitting the first light and reflecting the second light ;
所述第二合光元件设置于位于所述光源队列的中部的至少一个所述第一光源的出射光路上,并透射该至少一个所述第一光源出射的第一光至聚光透镜;The second light combining element is disposed on an outgoing light path of at least one of the first light sources located in a middle portion of the light source queue, and transmits the first light emitted by the at least one first light source to the collecting lens;
所述第一合光元件与所述第二合光元件交叉设置,且所述第一合光元件设置于所述光源队列中的两个光源的出射光路之间,不遮挡所述光源队列的光的出射;The first light combining element and the second light combining element are disposed to intersect with each other, and the first light combining element is disposed between the exit light paths of the two light sources in the light source queue, and does not block the light source queue Emergence of light;
第一反射镜,设置于所述第一合光元件和所述第二合光元件的第一侧,与所述第一合光元件位于所述第二合光元件的相同侧,将位于所述光源队列第一端的至少一个第一光源出射的第一光反射至所述第一合光元件,所述第一合光元件将所述第一光反射至所述聚光透镜;a first mirror disposed on a first side of the first light combining element and the second light combining element, and the first light combining element being located on a same side of the second light combining element The first light emitted by the at least one first light source at the first end of the light source queue is reflected to the first light combining element, and the first light combining element reflects the first light to the collecting lens;
第二反射镜,设置于所述第一合光元件和所述第二合光元件的第二侧,将位于所述光源队列第二端的至少一个第二光源出射的第二光反射至所述第二合光元件,所述第二合光元件将所述第二光反射至所述聚光透镜;a second mirror disposed on the second side of the first light combining element and the second light combining element, and reflecting second light emitted by the at least one second light source located at the second end of the light source queue to the a second light combining element, the second light combining element reflects the second light to the collecting lens;
所述聚光透镜,用于将入射至其上的光进行聚集。The collecting lens is configured to collect light incident thereon.
本实施例中,第一反射镜和第二反射镜将位于光源队列两端的第一光和第二光分别反射至第一合光元件和第二合光元件,并进一步补反射至聚光透镜,可以减小入射至聚光透镜的光斑的大小;由于第一合光元件设置于所述光源队列中的两个光源的出射光路之间,不遮挡所述光源队列的光的出射,因此位于所述光源队列的中部的至少一个所述第一光源可以透射第二合光元件从而入射至聚光透镜,从而可以避免光源队列与第二合光元件相对的位置留有空档而没有设置光源,可以实现光源队列上的光源的紧密排布。In this embodiment, the first mirror and the second mirror respectively reflect the first light and the second light located at both ends of the light source queue to the first light combining element and the second light combining element, and further complement the reflection to the collecting lens. The size of the spot incident on the condensing lens can be reduced; since the first illuminating element is disposed between the exiting optical paths of the two light sources in the light source queue, the light of the light source queue is not blocked, so At least one of the first light sources located in the middle of the light source queue may transmit the second light combining element to be incident on the collecting lens, so that the position of the light source queue opposite to the second light combining element may be prevented from leaving a neutral position without setting The light source can achieve a close arrangement of the light sources on the light source queue.
在一个实施例中,所述第二反射镜的数量大于一个,所述第二反射镜排列成阶梯形的第二反射镜阵列,每一个所述第二反射镜与一个所述第二光源相对应设置,将对应的所述第二光源出射的第二光反射至所述第二合光元件,所述第二反射镜阵列沿所述光源队列的出光方向向所述第二合光元件逐渐靠拢。In one embodiment, the number of the second mirrors is greater than one, and the second mirrors are arranged in a stepped second mirror array, each of the second mirrors being associated with one of the second light sources Correspondingly, the second light emitted by the corresponding second light source is reflected to the second light combining element, and the second mirror array is gradually extended toward the second light combining element along the light emitting direction of the light source queue Close together.
在一个实施例中,所述第一反射镜的数量大于一个,所述第一反射镜排列成阶梯形的第一反射镜阵列,每一个所述第一反射镜与一个所述第一光源相对应设置,将对应的所述第一光源出射的第一光反射至所述第一合光元件,所述第一反射镜阵列沿所述光源队列的出光方向向所述第一合光元件逐渐靠拢。In one embodiment, the number of the first mirrors is greater than one, the first mirrors are arranged in a stepped first mirror array, and each of the first mirrors is coupled to one of the first light sources. Correspondingly, the first light emitted by the corresponding first light source is reflected to the first light combining element, and the first mirror array is gradually extended toward the first light combining element along the light emitting direction of the light source queue Close together.
在一个实施例中,所述第一合光元件与所述第二合光元件成T型设置。In one embodiment, the first light combining element and the second light combining element are T-shaped.
在一个实施例中,所述第一光源还包括从所述第一反射镜和所述第一合光元件之间的通道出射第一光的光源,该光源出射的第一光透过所述第二合光元件入射至所述聚光透镜或者不透过所述第二合光元件而直接入射至所述聚光透镜。In one embodiment, the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, the first light emitted by the light source is transmitted through the light The second light combining element is incident on the condensing lens or directly enters the condensing lens without passing through the second light combining element.
由于在一些微型投影设备中,光源装置需要满足体积较小的需求,其中即使包含5个光源的一字型光源阵列的长度也可能不超过5厘米;而光源装置所包含的光学元件又比较多,因此,在比较狭小的空间内需要分布较多的光学元件,而且,还需要给粘接/固定光学元件这些操作留有一定的空间;本实施例有助于适应这些需求。Since in some micro-projection devices, the light source device needs to meet a small volume requirement, even if the length of the in-line light source array including five light sources may not exceed 5 cm; the light source device contains more optical components. Therefore, it is necessary to distribute a large number of optical elements in a relatively small space, and it is also necessary to leave a certain space for the operations of bonding/fixing optical elements; this embodiment helps to meet these needs.
在一个实施例中,所述第一光源出射的第一光和所述第二光源出射的第二光具有不同的偏振态;In one embodiment, the first light emitted by the first light source and the second light emitted by the second light source have different polarization states;
所述第二合光元件为偏振片,透射所述第一光和第二光中其中一种偏振态的光而反射另一种偏振态的光。The second light combining element is a polarizing plate that transmits light of one of the first light and the second light and reflects light of another polarization state.
下文参照图4对本文提供的一个实施例中的光源装置进行说明。The light source device in one embodiment provided herein is described below with reference to FIG.
在一个实施例中,一种光源装置,包括:第一光源310、第一光源311和第一光源312,以及第二光源313和第二光源314;还包括第一合光元件350、第二合光元件330、第一反射镜320、两个第二反射镜321、聚光透镜340、第三反射镜360和波长转换装置。波长转换装置包括驱动装置371和色轮370。In one embodiment, a light source device includes: a first light source 310, a first light source 311 and a first light source 312, and a second light source 313 and a second light source 314; further comprising a first light combining element 350, a second The light combining element 330, the first reflecting mirror 320, the two second reflecting mirrors 321, the collecting lens 340, the third reflecting mirror 360, and the wavelength conversion device. The wavelength conversion device includes a driving device 371 and a color wheel 370.
第一光源310、311和312出射第一偏振态(例如S偏振态)的第一光,第二光源313和314出射第二偏振态(例如P偏振态)的第二光;第一偏振态与第二偏振态不同。第一光源310、311和312和第二光源313和314都为蓝色激光光源。The first light sources 310, 311, and 312 emit the first light of the first polarization state (eg, the S polarization state), and the second light sources 313 and 314 emit the second light of the second polarization state (eg, the P polarization state); the first polarization state Different from the second polarization state. The first light sources 310, 311 and 312 and the second light sources 313 and 314 are all blue laser light sources.
各个光源排列成一字型的光源队列。第一光源310、第一光源311和第一光源312连续排列,以及第二光源313和第二光源314连续排列。Each light source is arranged in a line of light source queues. The first light source 310, the first light source 311, and the first light source 312 are continuously arranged, and the second light source 313 and the second light source 314 are continuously arranged.
本实施例中,第二合光元件330为偏振片,偏振片330设置于第一光源312的出射光路上,透射第一光源312出射的第一光至聚光透镜340。第二合光元件330与光源队列成45度角设置。In this embodiment, the second light combining element 330 is a polarizing plate, and the polarizing plate 330 is disposed on the outgoing light path of the first light source 312, and transmits the first light emitted by the first light source 312 to the collecting lens 340. The second light combining element 330 is disposed at an angle of 45 degrees to the light source queue.
第一合光元件350为反射镜,与第二合光元件330成T型设置。第一合光元件350与第二合光元件330相交于第二合光元件的中部。第一合光元件350设置于第一光源311与第一光源312的出射光路之间,不遮挡第一光源311与第一光源312的光的出射。The first light combining element 350 is a mirror and is disposed in a T shape with the second light combining element 330. The first light combining element 350 and the second light combining element 330 intersect at a central portion of the second light combining element. The first light combining element 350 is disposed between the first light source 311 and the outgoing light path of the first light source 312, and does not block the light of the first light source 311 and the first light source 312.
第一反射镜320反射第一光源310出射的第一光至第一合光元件350,第一合光元件350将第一光反射至聚光透镜340。The first mirror 320 reflects the first light emitted by the first light source 310 to the first light combining element 350, and the first light combining element 350 reflects the first light to the collecting lens 340.
两个第二反射镜321分别反射第二光源313和第二光源314出射的第二光至第二合光330,第二合光元件将第二光反射至聚光透镜340。The two second mirrors 321 respectively reflect the second light emitted from the second light source 313 and the second light source 314 to the second light combining 330, and the second light combining element reflects the second light to the collecting lens 340.
两个第二反射镜321排列成阶梯形的第二反射镜阵列。第二反射镜阵列沿着光源队列的出光方向逐渐向第二合光元件靠拢。The two second mirrors 321 are arranged in a stepped second mirror array. The second mirror array gradually moves toward the second light combining element along the light emitting direction of the light source queue.
第一光源311出射的第一光经过第一反射镜320和第一合光元件350之间的通道出射入射至聚光透镜340。The first light emitted from the first light source 311 is incident on the condensing lens 340 through the passage between the first mirror 320 and the first light combining element 350.
聚光透镜340将入射至其上的光聚集至第三反射镜360。聚光透镜340的出光方向与光源队列的出光方向大致相同。The condenser lens 340 concentrates the light incident thereon to the third mirror 360. The light-emitting direction of the condensing lens 340 is substantially the same as the light-emitting direction of the light source queue.
第三反射镜360将聚集后的光反射至色轮370,激发370上的波长转换材料以产生受激光。The third mirror 360 reflects the concentrated light to the color wheel 370, exciting the wavelength converting material on 370 to produce a laser.
驱动装置371包括驱动部和转动轴,转动轴与色轮370固定连接,驱动部驱动转动轴转动,从而带动色轮370转动。The driving device 371 includes a driving portion and a rotating shaft. The rotating shaft is fixedly connected to the color wheel 370, and the driving portion drives the rotating shaft to rotate, thereby driving the color wheel 370 to rotate.
驱动装置371的转动轴与光源队列平行。The rotational axis of the drive unit 371 is parallel to the light source queue.
第三反射镜360与驱动装置371位于色轮370的同一侧。The third mirror 360 and the driving device 371 are located on the same side of the color wheel 370.
转动轴较驱动部细长,第三反射镜360至少部分位于驱动部与转动轴以及色轮370围成的空间内。The rotating shaft is elongated relative to the driving portion, and the third reflecting mirror 360 is at least partially located in a space surrounded by the driving portion and the rotating shaft and the color wheel 370.
波长转换装置在光源队列所在直线上的投影大致位于光源队列上。The projection of the wavelength conversion device on the line on which the light source queue is located is substantially on the light source queue.
光源队列、聚集***、第三反射镜、和波长转换装置,波长转换装置包括色轮和驱动装置,其中:a light source queue, an aggregation system, a third mirror, and a wavelength conversion device, the wavelength conversion device comprising a color wheel and a driving device, wherein:
所述光源队列由呈一字型排列的多个光源形成;The light source queue is formed by a plurality of light sources arranged in a line;
所述聚集***位于所述光源队列的出光方向,将所述光源队列出射的光聚集至第三反射镜;The aggregation system is located in a light exiting direction of the light source queue, and collects light emitted from the light source queue to a third mirror;
所述第三反射镜将聚集后的光反射至色轮;The third mirror reflects the concentrated light to the color wheel;
所述色轮受到所述第三反射镜反射的光的激发后,产生受激光;The color wheel is excited by the light reflected by the third mirror to generate a laser beam;
所述驱动装置包括驱动部和转动轴,所述转动轴与所述色轮固定连接,所述驱动部驱动所述转动轴转动,从而带动所述色轮转动;The driving device includes a driving portion and a rotating shaft, the rotating shaft is fixedly connected to the color wheel, and the driving portion drives the rotating shaft to rotate, thereby driving the color wheel to rotate;
所述驱动装置的转动轴与所述光源队列平行。所述驱动装置的转动轴与所述光源队列平行可以理解为所述驱动装置的转动轴与所述光源队列大致平行。The axis of rotation of the drive device is parallel to the queue of light sources. Parallel to the axis of rotation of the drive device, it can be understood that the axis of rotation of the drive device is substantially parallel to the queue of light sources.
转动轴的方向也即驱动装置的中心轴方向,同时也是波长转换装置的中心轴方向。The direction of the axis of rotation is also the direction of the central axis of the drive and is also the direction of the central axis of the wavelength conversion device.
由于光源队列呈一字型,长度相对较长,本实施例中,驱动装置的转动轴与一字型光源队列大致平行,在光源队列的平行方向而不是在三维空间的其它方向设置元件,配合了一字型光源队列长度较长的特点,从而可以减小光源装置的外接长方体的体积。所谓光源装置的外接长方体指的是可以包围光源装置的最小的长方体。容易理解的,从而可以减小固定或容纳光源装置的壳体的体积。Since the light source queue has a font shape and a relatively long length, in this embodiment, the rotation axis of the driving device is substantially parallel to the queue of the inline light source, and the components are arranged in the parallel direction of the light source queue instead of the other directions in the three-dimensional space. The length of the queue of the in-line light source is long, so that the volume of the external rectangular parallelepiped of the light source device can be reduced. The external rectangular parallelepiped of the light source device refers to the smallest rectangular parallelepiped that can surround the light source device. It is easy to understand that the volume of the housing that fixes or houses the light source device can be reduced.
在一个实施例中,所述光源队列出射的光大致在同一平面内被聚集到所述第三反射镜,所述光源队列出射的光从出射至到达所述第三反射镜所形成的光路大致位于同一平面;或者,该所形成的光路大致位于平行的平面且该平行的平面之间的距离较小,例如,小于1厘米;或者,该所形成的光路大致位于相交的平面且该平行的平面的夹角较小,例如,小于30度。In one embodiment, the light emitted by the light source queue is concentrated in the same plane to the third mirror, and the light emitted by the light source queue is emitted from the light path to the third mirror. Located in the same plane; or, the formed optical path is substantially in a parallel plane and the distance between the parallel planes is small, for example, less than 1 cm; or the formed optical path is substantially located at the intersecting plane and the parallel The angle of the plane is small, for example, less than 30 degrees.
在一个实施例中,所述波长转换装置在所述光源队列所在直线上的投影的超过50%的部分与所述光源队列重叠。本实施例中节省了光源装置在光源队列方向上的长度。
In one embodiment, more than 50% of the projection of the wavelength conversion device on the line on which the light source queue is located overlaps the light source queue. In this embodiment, the length of the light source device in the direction of the light source queue is saved.
在一个实施例中,所述波长转换装置在所述光源队列所在直线上的投影大致位于所述光源队列上。In one embodiment, the projection of the wavelength conversion device on a line on which the light source queue is located is substantially on the light source queue.
在一个实施例中,所述色轮垂直于所述转动轴,所述色轮所在平面与所述光源队列的交点大致位于所述光源队列的中部。In one embodiment, the color wheel is perpendicular to the axis of rotation, and the intersection of the plane of the color wheel and the light source queue is located substantially in the middle of the light source queue.
在一个实施例中,所述第三反射镜与所述驱动装置位于所述色轮的同一侧。本实施例可以避免波长转换装置的长度与第三反射镜至色轮的距离的叠加而造成光源装置在转动轴方向上的长度的增大,从而有助于减少光源转换的体积。而且,被色轮反射回的光可以继续经第三反射镜反射至色轮,从而可以提高光的利用率。In one embodiment, the third mirror and the drive device are located on the same side of the color wheel. This embodiment can avoid the superposition of the length of the wavelength conversion device and the distance from the third mirror to the color wheel to cause an increase in the length of the light source device in the direction of the rotation axis, thereby contributing to reducing the volume of the light source conversion. Moreover, the light reflected back by the color wheel can continue to be reflected by the third mirror to the color wheel, so that the utilization of light can be improved.
在一个实施例中,所述转动轴较所述驱动部细长,所述第三反射镜至少部分位于所述驱动部与所述转动轴以及所述色轮围成的空间内。本实施例中,有效地利用了所述驱动部与所述转动轴以及所述色轮围成的空间,减少了光源装置在光源队列的出光方向上的长度,从而可以减小光源装置的体积。In one embodiment, the rotating shaft is elongated relative to the driving portion, and the third mirror is at least partially located in a space surrounded by the driving portion and the rotating shaft and the color wheel. In this embodiment, the space enclosed by the driving portion and the rotating shaft and the color wheel is effectively utilized, the length of the light source device in the light emitting direction of the light source queue is reduced, and the volume of the light source device can be reduced. .
在一个实施例中,所述光源队列包括第一光源和第二光源,所述第一光源出射第一光,所述第二光源出射第二光,所述第一光源的数量大于等于一个,以及所述第二光源的数量大于等于一个;In one embodiment, the light source queue includes a first light source that emits first light, and a second light source that emits second light, the number of the first light sources being greater than or equal to one, And the number of the second light sources is greater than or equal to one;
所述聚集***包括第二合光元件、第二反射镜和聚光透镜;The collecting system includes a second light combining element, a second mirror, and a collecting lens;
所述第二合光元件位于至少一个所述第一光源的出射光路上,所述第二反射镜设置于所述第二合光元件的旁侧;The second light combining element is located on an exiting light path of the at least one first light source, and the second mirror is disposed on a side of the second light combining element;
所述第二合光元件具有透射所述第一光且反射所述第二光的特性,所述第二合光元件将入射至其上的所述第一光和所述第二光进行合光;The second light combining element has a characteristic of transmitting the first light and reflecting the second light, and the second light combining element combines the first light and the second light incident thereon Light;
至少一个所述第一光源出射的第一光直接透射所述第二合光元件,以及至少一个所述第二光源出射的第二光通过所述第二反射镜反射至所述第二合光元件,并通过所述第二合光元件反射至所述聚光透镜;
The first light emitted by the at least one first light source is directly transmitted through the second light combining element, and the second light emitted by the at least one second light source is reflected by the second mirror to the second light combining An element, and reflected by the second light combining element to the collecting lens;
所述聚光透镜位于所述第二合光元件的出射光路上,所述聚光透镜将入射至其上的光聚集到所述第三反射镜。The condensing lens is located on an outgoing light path of the second light combining element, and the condensing lens concentrates light incident thereon to the third mirror.
本实施例中,第二合光元件位于至少一个第一光源的出射光路的,第一合光透射入射至其上的第一光,从而可以避免光源队列与第二合光元件相对的位置留有空档而没有设置光源,可以实现光源队列上的光源的紧密排布。In this embodiment, the second light combining element is located at the exiting optical path of the at least one first light source, and the first combined light transmits the first light incident thereon, so that the position of the light source queue opposite to the second light combining element can be avoided. Leaving a neutral position without a light source allows for a tight arrangement of the light sources on the light source queue.
在一个实施例中,所述第二反射镜的数量大于一个,所述第二反射镜排列成阶梯形的第二反射镜阵列,每一个所述第二反射镜与一个所述第二光源相对应设置,将对应的所述第二光源出射的第二光反射至所述第二合光元件,所述第二反射镜阵列沿所述光源队列的出光方向向所述第二合光元件逐渐靠拢。In one embodiment, the number of the second mirrors is greater than one, and the second mirrors are arranged in a stepped second mirror array, each of the second mirrors being associated with one of the second light sources Correspondingly, the second light emitted by the corresponding second light source is reflected to the second light combining element, and the second mirror array is gradually extended toward the second light combining element along the light emitting direction of the light source queue Close together.
出射的第二光通过第二反射镜反射至第二合光元件的第二光源排列于光源队列的队尾或队首而非光源队列的中部;可以理解的,若该类第二光源包含多个,则该类第二光源集中排列于或者说连续排列于光源队列的队尾或队首。The second light source that is emitted by the second mirror and reflected to the second light combining element is arranged in the tail or the head of the light source queue instead of the middle of the light source queue; it can be understood that if the second light source of the type contains more The second source of the class is arranged in a row or in a row at the end of the queue or the head of the queue.
在一个实施例中,所述聚集***还包括第一反射镜和第一合光元件;In one embodiment, the aggregation system further includes a first mirror and a first light combining element;
所述第一反射镜设置于所述第二合光元件的旁侧,与所述第二反射镜位于所述第二合光元件的异侧;The first mirror is disposed on a side of the second light combining element, and the second mirror is located on an opposite side of the second light combining element;
所述第一合光元件与所述第二合光元件交叉设置,所述第一合光元件与所述第一反射镜位于所述第二合光元件的同侧,且所述第一合光元件设置于所述光源队列中的两个光源的出射光路之间,不遮挡所述第一光源的第一光的出射;所述第一合光元件具有反射第一光的特性;The first light combining element is disposed to intersect with the second light combining element, the first light combining element and the first mirror are located on the same side of the second light combining element, and the first combination The light element is disposed between the exiting optical paths of the two light sources in the light source queue, and does not block the exit of the first light of the first light source; the first light combining element has a characteristic of reflecting the first light;
至少一个所述第一光源出射的第一光通过所述第一反射镜反射至所述第一合光元件,并继续经所述第一合光元件反射至所述聚光透镜。The first light emitted by the at least one of the first light sources is reflected by the first mirror to the first light combining element and continues to be reflected by the first light combining element to the collecting lens.
出射的第一光通过第一反射镜反射至第一合光元件的第一光源排列于光源队列的队尾或队首而非光源队列的中部;可以理解的,若该类第一光源包含多个,则该类第一光源集中排列于或者说连续排列于光源队列的队尾或队首。The first light source that is emitted by the first mirror and reflected by the first mirror to the first light combining element is arranged in the tail or the head of the light source queue instead of the middle of the light source queue; it is understood that if the first light source of the type contains more The first light source of the type is arranged in a row or in a row at the end of the queue or the head of the light source.
本实施例中,部分第一光源(例如一字型光源队列队尾或队首的第一光源)出射的第一光经第一反射镜反射至第一合光元件,可以减小一字型排列的光源队列出射的光斑。In this embodiment, the first light emitted by a part of the first light source (for example, the first light source of the queue of the inline light source or the first light source of the team head) is reflected by the first mirror to the first light combining element, so that the font can be reduced. The spot of the aligned light source queue.
而且,本实施例中,第一合光元件设置于所述光源队列中的两个光源的出射光路之间,可以不遮挡光源队列的光的出射,从而使得可以在第二合光元件相对于光源队列的位置排布光源,有助于光源队列中光源的紧凑排布。Moreover, in this embodiment, the first light combining element is disposed between the exiting optical paths of the two light sources in the light source queue, and the light of the light source queue may not be blocked, so that the second light combining element may be opposite. Arranging the light source at the position of the light source queue helps to facilitate the compact arrangement of the light sources in the light source queue.
另外,由于第一合光元件反射第一反射镜的光、且设置于所述光源队列中的两个光源的出射光路之间,因此,可方便于在第一合光元件朝向光源队列的一侧设置支柱支撑固定第一合光元件和第二合光元件,该支柱可以与第一合光元件的反射面的反面的全部面积相支撑固定,以及与第二合光元件的小部分面积相支撑固定,以不遮挡光源队列的光的出射为准。In addition, since the first light combining element reflects the light of the first mirror and is disposed between the exit light paths of the two light sources in the light source queue, it is convenient for the first light combining element to face the light source queue. One side is provided with a support for fixing the first light combining element and the second light combining element, and the pillar can be supported and fixed with the entire area of the reverse surface of the reflecting surface of the first light combining element, and a small area of the second light combining element The phase support is fixed, which is based on the emission of light that does not block the light source queue.
在一个实施例中,所述第一合光元件与所述第二合光元件成T型设置。T型包含两个直角,其中一个直角面向光源队列。In one embodiment, the first light combining element and the second light combining element are T-shaped. The T-shape consists of two right angles, one of which is facing the light source queue.
在一个实施例中,所述第一反射镜的数量大于一个,所述第一反射镜排列成阶梯形的第一反射镜阵列,每一个所述第一反射镜与一个所述第一光源相对应设置,将对应的所述第一光源出射的第一光反射至所述第一合光元件,所述第一反射镜阵列沿所述光源队列的出光方向向所述第一合光元件逐渐靠拢。In one embodiment, the number of the first mirrors is greater than one, the first mirrors are arranged in a stepped first mirror array, and each of the first mirrors is coupled to one of the first light sources. Correspondingly, the first light emitted by the corresponding first light source is reflected to the first light combining element, and the first mirror array is gradually extended toward the first light combining element along the light emitting direction of the light source queue Close together.
在一个实施例中,所述第一光源还包括从所述第一反射镜和所述第一合光元件之间的通道出射第一光的光源,该光源出射的第一光透过所述第二合光元件入射至所述聚光透镜或者不透过所述第二合光元件直接入射至所述聚光透镜。In one embodiment, the first light source further includes a light source that emits the first light from a channel between the first mirror and the first light combining element, the first light emitted by the light source is transmitted through the light The second light combining element is incident on the condensing lens or directly incident on the condensing lens without passing through the second light combining element.
由于在一些微型投影设备中,光源装置需要满足体积较小的需求,其中即使包含5个光源的一字型光源阵列的长度也可能不超过5厘米;而光源装置所包含的光学元件又比较多,因此,在比较狭小的空间内需要分布较多的光学元件,而且,还需要给粘接/固定光学元件这些操作留有一定的空间;本实施例有助于适应这些需求。Since in some micro-projection devices, the light source device needs to meet a small volume requirement, even if the length of the in-line light source array including five light sources may not exceed 5 cm; the light source device contains more optical components. Therefore, it is necessary to distribute a large number of optical elements in a relatively small space, and it is also necessary to leave a certain space for the operations of bonding/fixing optical elements; this embodiment helps to meet these needs.
在一个实施例中,所述第一光源出射的第一光和所述第二光源出射的第二光具有不同的偏振态;In one embodiment, the first light emitted by the first light source and the second light emitted by the second light source have different polarization states;
所述第二合光元件为偏振片,透射所述第一光和第二光中其中一种偏振态的光而反射另一种偏振态的光。The second light combining element is a polarizing plate that transmits light of one of the first light and the second light and reflects light of another polarization state.
在以上对本发明的描述中,需要理解的是,术语“上”、“下”、“左”、“右”、“竖直”、“水平”、“底”、等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。In the above description of the present invention, it is to be understood that the orientation or positional relationship of the terms "upper", "lower", "left", "right", "vertical", "horizontal", "bottom", etc. The present invention and the simplification of the description are based on the orientation or positional relationship shown in the drawings, and are not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot It is understood to be a limitation of the invention.
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.
以上内容是结合具体的实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换。The above is a further detailed description of the present invention in connection with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. A number of simple derivations or substitutions may be made by those skilled in the art without departing from the inventive concept.
Claims (13)
1. 光学固定装置,其特征在于,包括:1. An optical fixture, characterized by comprising:
用于固定多个固态光源的光源固定部;a light source fixing portion for fixing a plurality of solid state light sources;
与所述多个固态光源中的至少部分对应设置的第二反射镜固定部,所述第二反射镜固定部用于固定第二反射镜;a second mirror fixing portion corresponding to at least a portion of the plurality of solid state light sources, the second mirror fixing portion for fixing the second mirror;
用于固定至少一个第二合光元件的第二合光元件固定部,所述第二合光元件透射部分的所述固态光源所发出并且未经反射的光线或者/和反射由第二反射镜所反射的光线;a second light-receiving element fixing portion for fixing at least one second light-combining element, the second light-combining element transmitting part of the solid-state light source and not reflecting light or/and reflecting by the second mirror The reflected light;
用于固定聚光透镜的聚光透镜固定部,所述聚光透镜对经过第二合光元件后的光线进行会聚。A condensing lens fixing portion for fixing the condensing lens, the condensing lens condensing light passing through the second combining element.
2. 根据权利要求1所述的光学固定装置,其特征在于:2. The optical fixture of claim 1 wherein:
所述光学固定装置还包括用于固定第一反射镜的第一反射镜固定部和用于固定第一合光元件的第一合光元件固定部,所述第一合光元件将所述第一反射镜所反射的光线进一步反射至所述第二合光元件。The optical fixing device further includes a first mirror fixing portion for fixing the first mirror and a first light combining member fixing portion for fixing the first light combining member, the first light combining member Light reflected by a mirror is further reflected to the second light combining element.
3. 根据权利要求2所述的光学固定装置,其特征在于:3. The optical fixture of claim 2, wherein:
所述第二反射镜为多个,所述光源固定部布置在水平面上,在水平方向上,位于所述第二合光元件的第一侧的所述第一反射镜和所述第一合光元件被固定成分别与所述第二合光元件垂直,位于所述第二合光元件的第二侧的所述第二反射镜被固定成与所述第二合光元件平行,并且,所述第二合The plurality of second mirrors are disposed, the light source fixing portion is disposed on a horizontal surface, and the first mirror and the first joint on the first side of the second light combining member are horizontally arranged The light elements are fixed to be perpendicular to the second light combining elements, respectively, and the second mirror located on the second side of the second light combining elements is fixed in parallel with the second light combining elements, and The second combination
4. 根据权利要求1所述的光学固定装置,其特征在于:4. The optical fixture of claim 1 wherein:
所述光学固定装置还包括用于固定第三反射镜的第三反射镜固定部和用于固定所述色轮的色轮固定部,所述第三反射镜将经会聚后的所述激发光反射至所述色轮以对所述色轮的波长转换材料进行激发,所述固态光源为激光光源或LED光源。The optical fixing device further includes a third mirror fixing portion for fixing the third mirror and a color wheel fixing portion for fixing the color wheel, the third mirror to be the concentrated excitation light Reflecting to the color wheel to excite the wavelength converting material of the color wheel, the solid state light source being a laser light source or an LED light source.
5. 根据权利要求1至4任一项所述的光学固定装置,其特征在于:The optical fixture according to any one of claims 1 to 4, characterized in that:
所述第一反射镜固定部、所述第二反射镜固定部、所述第三反射镜固定部、所述第一合光元件固定部和所述第二合光元件固定部中的至少一个包括至少两个凸台,在相邻的所述凸台之间具有用于填充粘合剂的中空部分。At least one of the first mirror fixing portion, the second mirror fixing portion, the third mirror fixing portion, the first light combining element fixing portion, and the second light combining element fixing portion At least two bosses are included with a hollow portion for filling the adhesive between adjacent ones of the bosses.
6. 投影设备,其特征在于:6. Projection device, characterized in that:
所述投影设备包括权利要求1-5任一项所述的光学固定装置。The projection apparatus includes the optical fixture of any of claims 1-5.
7.一种光源装置,其特征在于,包括光源队列、聚集***、第三反射镜、和波长转换装置,所述波长转换装置包括色轮和驱动装置,其中:A light source device comprising a light source queue, an aggregation system, a third mirror, and a wavelength conversion device, the wavelength conversion device comprising a color wheel and a driving device, wherein:
所述光源队列由呈一字型排列的多个光源形成;The light source queue is formed by a plurality of light sources arranged in a line;
所述聚集***位于所述光源队列的出光方向,将所述光源队列出射的光聚集至第三反射镜;The aggregation system is located in a light exiting direction of the light source queue, and collects light emitted from the light source queue to a third mirror;
所述第三反射镜将聚集后的光反射至色轮;The third mirror reflects the concentrated light to the color wheel;
所述色轮受到所述第三反射镜反射的光的激发后,产生受激光;The color wheel is excited by the light reflected by the third mirror to generate a laser beam;
所述驱动装置包括驱动部和转动轴,所述转动轴与所述色轮固定连接,所述驱动部驱动所述转动轴转动,从而带动所述色轮转动;The driving device includes a driving portion and a rotating shaft, the rotating shaft is fixedly connected to the color wheel, and the driving portion drives the rotating shaft to rotate, thereby driving the color wheel to rotate;
所述驱动装置的转动轴与所述光源队列平行。The axis of rotation of the drive device is parallel to the queue of light sources.
8.根据权利要求7所述的光源装置,其特征在于,所述光源队列包括第一光源和第二光源,所述第一光源出射第一光,所述第二光源出射第二光,所述第一光源的数量大于等于一个,以及所述第二光源的数量大于等于一个;The light source device according to claim 7, wherein the light source queue comprises a first light source and a second light source, the first light source emits first light, and the second light source emits second light, The number of the first light sources is greater than or equal to one, and the number of the second light sources is greater than or equal to one;
所述聚集***包括第二合光元件、第二反射镜和聚光透镜;The collecting system includes a second light combining element, a second mirror, and a collecting lens;
所述第二合光元件位于至少一个所述第一光源的出射光路上,所述第二反射镜设置于所述第二合光元件的旁侧;The second light combining element is located on an exiting light path of the at least one first light source, and the second mirror is disposed on a side of the second light combining element;
所述第二合光元件具有透射所述第一光且反射所述第二光的特性,所述第二合光元件将入射至其上的所述第一光和所述第二光进行合光;The second light combining element has a characteristic of transmitting the first light and reflecting the second light, and the second light combining element combines the first light and the second light incident thereon Light;
至少一个所述第一光源出射的第一光直接透射所述第二合光元件,以及至少一个所述第二光源出射的第二光通过所述第二反射镜反射至所述第二合光元件,并通过所述第二合光元件反射至所述聚光透镜;
The first light emitted by the at least one first light source is directly transmitted through the second light combining element, and the second light emitted by the at least one second light source is reflected by the second mirror to the second light combining An element, and reflected by the second light combining element to the collecting lens;
所述聚光透镜位于所述第二合光元件的出射光路上,所述聚光透镜将入射至其上的光聚集到所述第三反射镜。The condensing lens is located on an outgoing light path of the second light combining element, and the condensing lens concentrates light incident thereon to the third mirror.
9.根据权利要求8所述的光源装置,其特征在于,所述第二反射镜的数量大于一个,所述第二反射镜排列成阶梯形的第二反射镜阵列,每一个所述第二反射镜与一个所述第二光源相对应设置,将对应的所述第二光源出射的第二光反射至所述第二合光元件,所述第二反射镜阵列沿所述光源队列的出光方向向所述第二合光元件逐渐靠拢。The light source device according to claim 8, wherein the number of the second mirrors is larger than one, and the second mirrors are arranged in a stepped second mirror array, each of the second mirrors The mirror is disposed corresponding to one of the second light sources, and reflects the second light emitted by the corresponding second light source to the second light combining element, and the second mirror array emits light along the light source queue The direction gradually approaches the second light combining element.
10.根据权利要求8所述的光源装置,其特征在于,所述聚集***还包括第一反射镜和第一合光元件;The light source device according to claim 8, wherein the focusing system further comprises a first mirror and a first light combining element;
所述第一反射镜设置于所述第二合光元件的旁侧,与所述第二反射镜位于所述第二合光元件的异侧;The first mirror is disposed on a side of the second light combining element, and the second mirror is located on an opposite side of the second light combining element;
所述第一合光元件与所述第二合光元件交叉设置,所述第一合光元件与所述第一反射镜位于所述第二合光元件的同侧,且所述第一合光元件设置于所述光源队列中的两个光源的出射光路之间,不遮挡所述光源队列的光的出射;所述第一合光元件具有反射第一光的特性;The first light combining element is disposed to intersect with the second light combining element, the first light combining element and the first mirror are located on the same side of the second light combining element, and the first combination The light element is disposed between the exiting optical paths of the two light sources in the light source queue, and does not block the light of the light source queue; the first light combining element has a characteristic of reflecting the first light;
至少一个所述第一光源出射的第一光通过所述第一反射镜反射至所述第一合光元件,并继续经所述第一合光元件反射至所述聚光透镜。The first light emitted by the at least one of the first light sources is reflected by the first mirror to the first light combining element and continues to be reflected by the first light combining element to the collecting lens.
11.根据权利要求8所述的光源装置,其特征在于,所述第一光源出射的第一光和所述第二光源出射的第二光具有不同的偏振态;The light source device according to claim 8, wherein the first light emitted by the first light source and the second light emitted by the second light source have different polarization states;
所述第二合光元件为偏振片,透射所述第一光和第二光中其中一种偏振态的光而反射另一种偏振态的光。The second light combining element is a polarizing plate that transmits light of one of the first light and the second light and reflects light of another polarization state.
12.一种光源装置,其特征在于,包括:12. A light source device, comprising:
光源队列,由呈一字型排列的多个光源形成;所述光源队列包括第一光源和第二光源,所述第一光源出射第一光,所述第二光源出射第二光;a light source queue formed by a plurality of light sources arranged in a line; the light source queue includes a first light source and a second light source, the first light source exiting the first light, and the second light source exiting the second light;
第一合光元件和第二合光元件,所述第一合光元件具有反射第一光的特性,所述第二合光元件具有透射所述第一光且反射所述第二光的特性;a first light combining element having a characteristic of reflecting the first light, and a second light combining element having a characteristic of transmitting the first light and reflecting the second light ;
所述第二合光元件设置于位于所述光源队列的中部的至少一个所述第一光源的出射光路上,并透射该至少一个所述第一光源出射的第一光至聚光透镜;The second light combining element is disposed on an outgoing light path of at least one of the first light sources located in a middle portion of the light source queue, and transmits the first light emitted by the at least one first light source to the collecting lens;
所述第一合光元件与所述第二合光元件交叉设置,且所述第一合光元件设置于所述光源队列中的两个光源的出射光路之间,不遮挡所述光源队列的光的出射;The first light combining element and the second light combining element are disposed to intersect with each other, and the first light combining element is disposed between the exit light paths of the two light sources in the light source queue, and does not block the light source queue Emergence of light;
第一反射镜,设置于所述第一合光元件和所述第二合光元件的第一侧,与所述第一合光元件位于所述第二合光元件的相同侧,将位于所述光源队列第一端的至少一个第一光源出射的第一光反射至所述第一合光元件,所述第一合光元件将所述第一光反射至所述聚光透镜;a first mirror disposed on a first side of the first light combining element and the second light combining element, and the first light combining element being located on a same side of the second light combining element The first light emitted by the at least one first light source at the first end of the light source queue is reflected to the first light combining element, and the first light combining element reflects the first light to the collecting lens;
第二反射镜,设置于所述第一合光元件和所述第二合光元件的第二侧,将位于所述光源队列第二端的至少一个第二光源出射的第二光反射至所述第二合光元件,所述第二合光元件将所述第二光反射至所述聚光透镜;a second mirror disposed on the second side of the first light combining element and the second light combining element, and reflecting second light emitted by the at least one second light source located at the second end of the light source queue to the a second light combining element, the second light combining element reflects the second light to the collecting lens;
所述聚光透镜,用于将入射至其上的光进行聚集。The collecting lens is configured to collect light incident thereon.
13.根据权利要求12所述的光源装置,其特征在于,所述第一反射镜的数量大于一个,所述第一反射镜排列成阶梯形的第一反射镜阵列,每一个所述第一反射镜与一个所述第一光源相对应设置,将对应的所述第一光源出射的第一光反射至所述第一合光元件,所述第一反射镜阵列沿所述光源队列的出光方向向所述第一合光元件逐渐靠拢。The light source device according to claim 12, wherein the number of the first mirrors is larger than one, and the first mirrors are arranged in a stepped first mirror array, each of the first mirrors The mirror is disposed corresponding to one of the first light sources, and reflects the first light emitted by the corresponding first light source to the first light combining element, and the first mirror array emits light along the light source queue The direction gradually approaches the first light combining element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/773,907 US10372026B2 (en) | 2015-11-10 | 2016-11-04 | Optical fixing device, light source device, and projection equipment |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510762819.6 | 2015-11-10 | ||
CN201510762819 | 2015-11-10 | ||
CN201510918356.8 | 2015-12-10 | ||
CN201510918356.8A CN106681091B (en) | 2015-11-10 | 2015-12-10 | Optical fixing device, light source device and projection equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017080407A1 true WO2017080407A1 (en) | 2017-05-18 |
Family
ID=58694448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2016/104716 WO2017080407A1 (en) | 2015-11-10 | 2016-11-04 | Optical fixing device, light source device, and projection equipment |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2017080407A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112240824A (en) * | 2019-07-16 | 2021-01-19 | 三赢科技(深圳)有限公司 | Testing device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101446749A (en) * | 2007-11-26 | 2009-06-03 | 亚洲光学股份有限公司 | Projection optical system and optical projection method thereof |
CN101770078A (en) * | 2008-12-30 | 2010-07-07 | 昆山扬明光学有限公司 | Projector and light converging module thereof |
CN202041758U (en) * | 2011-01-28 | 2011-11-16 | 英济股份有限公司 | Microprojector and light source module thereof |
CN104516178A (en) * | 2013-09-29 | 2015-04-15 | 中强光电股份有限公司 | Optical machine module |
EP2874004A1 (en) * | 2013-10-24 | 2015-05-20 | LG Electronics Inc. | Image projection apparatus |
CN205176463U (en) * | 2015-11-10 | 2016-04-20 | 深圳市光峰光电技术有限公司 | Circuit board components , light source device and projection equipment |
CN205539892U (en) * | 2015-11-10 | 2016-08-31 | 深圳市光峰光电技术有限公司 | Optics fixing device , light source device and projection equipment |
-
2016
- 2016-11-04 WO PCT/CN2016/104716 patent/WO2017080407A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101446749A (en) * | 2007-11-26 | 2009-06-03 | 亚洲光学股份有限公司 | Projection optical system and optical projection method thereof |
CN101770078A (en) * | 2008-12-30 | 2010-07-07 | 昆山扬明光学有限公司 | Projector and light converging module thereof |
CN202041758U (en) * | 2011-01-28 | 2011-11-16 | 英济股份有限公司 | Microprojector and light source module thereof |
CN104516178A (en) * | 2013-09-29 | 2015-04-15 | 中强光电股份有限公司 | Optical machine module |
EP2874004A1 (en) * | 2013-10-24 | 2015-05-20 | LG Electronics Inc. | Image projection apparatus |
CN205176463U (en) * | 2015-11-10 | 2016-04-20 | 深圳市光峰光电技术有限公司 | Circuit board components , light source device and projection equipment |
CN205539892U (en) * | 2015-11-10 | 2016-08-31 | 深圳市光峰光电技术有限公司 | Optics fixing device , light source device and projection equipment |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112240824A (en) * | 2019-07-16 | 2021-01-19 | 三赢科技(深圳)有限公司 | Testing device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018166038A1 (en) | Light source device and projection system | |
WO2018166120A1 (en) | Light source apparatus and projection system | |
WO2017020855A1 (en) | Light source system and projection system | |
WO2016165569A1 (en) | Light-emitting device and projection system | |
WO2017204494A1 (en) | Head up display for vehicle | |
WO2013056594A1 (en) | Light source and display system | |
WO2014084489A1 (en) | Light source unit, and image projection device including same | |
WO2016197888A1 (en) | Projection system, light source system and light source assembly | |
WO2016161932A1 (en) | Light emitting device and projection display apparatus | |
WO2014135040A1 (en) | Light-emitting apparatus and a related projection system | |
WO2014117704A2 (en) | Led light source system and led lighting device | |
WO2018214288A1 (en) | Light source system and display device | |
WO2013053264A9 (en) | Light source system and laser light source | |
WO2010143891A2 (en) | Projection system | |
WO2018151581A1 (en) | Lase scribing device | |
WO2011127670A1 (en) | Light mixer in free space | |
WO2015176608A1 (en) | Light source module and projection device | |
WO2016116039A1 (en) | Light source system and projection system | |
WO2014111058A1 (en) | Illuminating system and related light-emitting device thereof | |
TWI609230B (en) | Fixing device of optical instrumentation | |
WO2010002189A2 (en) | Laser scanning display and beam alignment method thereof | |
WO2017080407A1 (en) | Optical fixing device, light source device, and projection equipment | |
WO2018196195A1 (en) | Light source system and display device | |
KR100694951B1 (en) | Fixing plate, optical device and projector | |
WO2015070719A1 (en) | Illumination 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: 16863584 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15773907 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16863584 Country of ref document: EP Kind code of ref document: A1 |