WO2020134220A1 - 激光器组件、激光光源和激光投影设备 - Google Patents

激光器组件、激光光源和激光投影设备 Download PDF

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Publication number
WO2020134220A1
WO2020134220A1 PCT/CN2019/106784 CN2019106784W WO2020134220A1 WO 2020134220 A1 WO2020134220 A1 WO 2020134220A1 CN 2019106784 W CN2019106784 W CN 2019106784W WO 2020134220 A1 WO2020134220 A1 WO 2020134220A1
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WIPO (PCT)
Prior art keywords
light
laser
incident surface
light emitting
axis direction
Prior art date
Application number
PCT/CN2019/106784
Other languages
English (en)
French (fr)
Inventor
周子楠
田有良
李巍
Original Assignee
青岛海信激光显示股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201811583139.8A external-priority patent/CN111352288B/zh
Priority claimed from CN201910210132.XA external-priority patent/CN111722459B/zh
Application filed by 青岛海信激光显示股份有限公司 filed Critical 青岛海信激光显示股份有限公司
Priority to US16/497,729 priority Critical patent/US10989995B2/en
Publication of WO2020134220A1 publication Critical patent/WO2020134220A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0052—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode
    • G02B19/0057—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode in the form of a laser diode array, e.g. laser diode bar
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2013—Plural light sources
    • 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
    • G03B21/28—Reflectors in projection beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3152—Modulator illumination systems for shaping the light beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3161—Modulator illumination systems using laser light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3164—Modulator illumination systems using multiple light sources
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam

Definitions

  • the present disclosure relates to the field of laser projection technology, and in particular, to a laser assembly, a laser light source, and a laser projection device.
  • the laser assembly can provide a laser beam, which is one of the important components in laser projection equipment such as laser TVs and laser projectors.
  • a laser assembly in one aspect, includes: a bracket provided with at least one mounting slot, each of the at least one mounting slot includes an opening; at least one laser, the at least one laser is mounted on the at least one mounting slot in a one-to-one correspondence Inside.
  • Each of the at least one laser includes: a light-emitting component configured to emit a light beam; a dimming component disposed on an optical path of the light-emitting component, the dimming component including a light incident surface.
  • the light incident surface of the dimming member is disposed close to the light emitting member, the light incident surface is configured to emit the light beam emitted by the light emitting member toward the opening of the mounting groove, and the light incident surface is It is configured to change the divergence angle of the light beam along at least one of the fast axis direction and the slow axis direction of the light beam.
  • the laser light source includes: a laser assembly as described above; a main casing, which is disposed on the optical path of the laser assembly and is fixedly connected to the laser assembly, and the main casing includes a light entrance port, the light entrance The port is provided on the light exit path of the laser assembly; the optical path assembly is provided in the main housing.
  • the laser projection device includes: a laser light source as described above; an optical machine, disposed on the optical path of the light beam emitted by the laser light source, and configured to modulate the light beam emitted by the laser light source to generate an image beam and concurrently Projecting the image beam; a projection lens is disposed on the optical path of the beam emitted by the laser light source, the projection lens is configured to receive the image beam and perform imaging based on the image beam.
  • Figure 1 is a schematic diagram of the structure of a laser assembly
  • FIG. 2 is a cross-sectional view of the laser assembly shown in FIG. 1;
  • FIG. 3 is a schematic structural diagram of another laser assembly
  • FIGS. 4 is a schematic diagram of the optical paths of the light beams emitted by the light-emitting components in FIGS. 2 and 3 along the fast axis direction and the slow axis direction;
  • FIG. 5 is a schematic structural diagram of a laser assembly provided by some embodiments of the present disclosure.
  • the light beam emitted by the light-emitting component in the laser assembly is substantially perpendicular to the plane where the light-emitting component is located;
  • FIG. 6 is a schematic cross-sectional view of the laser assembly shown in FIG. 5;
  • FIG. 7 is a schematic structural view of a single laser in the laser assembly shown in FIG. 6;
  • FIG. 8 is a cross-sectional view taken along line A-A of the laser shown in FIG. 7;
  • FIG. 9 is a schematic structural diagram of yet another laser assembly provided by some embodiments of the present disclosure, and the light beam emitted by the light emitting component in the laser assembly is substantially perpendicular to the plane where the light emitting component is located;
  • FIG. 10 is a schematic cross-sectional structure diagram of the laser assembly shown in FIG. 9;
  • FIG. 11 is a schematic structural diagram of another laser assembly provided by some embodiments of the present disclosure, the light beam emitted by the light-emitting component in the laser assembly is substantially perpendicular to the plane where the light-emitting component is located;
  • FIG. 12 is a schematic cross-sectional structural view of the laser assembly shown in FIG. 11;
  • FIG. 13 is a schematic structural diagram of a laser assembly provided by some embodiments of the present disclosure, the light beam emitted by the light emitting component in the laser assembly is generally parallel to the plane where the light emitting component is located;
  • FIG. 14 is a schematic structural view of a single laser in the laser assembly shown in FIG. 13;
  • FIG. 15 is a front view of the laser shown in FIG. 14;
  • FIG. 16 is a schematic structural diagram of another single laser in the laser assembly shown in FIG. 13;
  • FIG. 17 is a front view of the laser shown in FIG. 16;
  • FIG. 18 is a schematic structural diagram of yet another single laser in the laser assembly shown in FIG. 13;
  • FIG. 19 is a front view of the laser shown in FIG. 18;
  • FIG. 20 is a schematic structural diagram of yet another single laser in the laser assembly shown in FIG. 13;
  • FIG. 21 is a front view of the laser shown in FIG. 20;
  • FIG. 22 is a plan view of a single laser in the laser assembly shown in FIG. 13, the light beam emitted by the light emitting component in the laser is substantially parallel to the plane where the light emitting component is located;
  • FIG. 23 is a plan view of another single laser in the laser assembly shown in FIG. 13, the light beam emitted by the light emitting component in the laser is substantially parallel to the plane where the light emitting component is located;
  • 24 is a schematic structural diagram of yet another laser assembly provided by some embodiments of the present disclosure, and the light beam emitted by the light emitting component in the laser assembly is substantially parallel to the plane where the light emitting component is located;
  • 25 is a schematic structural diagram of a laser light source provided by some embodiments of the present disclosure.
  • 26 is a schematic structural diagram of a laser projection device according to some embodiments of the present disclosure.
  • FIG. 27 is a schematic diagram of an equivalent structure of another laser projection device provided by some embodiments of the present disclosure.
  • connection should be understood in a broad sense, for example, it may be a fixed connection, or it may be Detachable connection, or integral connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the communication between the two components.
  • intermediate medium which can be the communication between the two components.
  • the terms may have a nuanced meaning implied in the context beyond the explicitly stated meaning.
  • the phrase “in one embodiment” or “in some embodiments” does not necessarily refer to the same embodiment, and the phrase “in another embodiment” or “in other embodiments” does not necessarily refer to different ⁇ Examples.
  • the phrase “in one example” or “in some examples” does not necessarily refer to the same example, and the phrase “in another example” or “in other examples” does not necessarily refer to a different example.
  • the claimed subject matter is intended to include, in whole or in part, exemplary embodiments or combinations of examples.
  • the term "one or more” or “at least one” as used herein depends at least in part on the context and can be used to describe any characteristic, structure, or characteristic in the singular, or can be used to describe the plural A combination of characteristics, structures, or characteristics. Generally, if “at least one” is used to connect several objects, such as “at least one of A and B", it should be understood as “only A, only B, or both A and B”. Similarly, based at least in part on context, terms such as “a” or “the” may be understood to mean singular usage or plural usage. In addition, based at least in part on the context, the terms “based on” or “determined by” may be understood as not necessarily intended to express a set of exclusive elements, but may allow the presence of other elements that are not necessarily explicitly described.
  • a laser projection device is a projection display device that uses a laser light source as a display light source and forms an image in conjunction with projection display technology, such as a laser TV, a laser projector, and the like.
  • the laser light source mainly includes a laser component and an optical path component.
  • the laser component can emit a laser beam, and the laser component can be divided into a red laser component, a blue laser component, a green laser component, etc. according to its emission color.
  • the laser light source may include multiple color laser components.
  • a laser light source may include a blue laser component and a red laser component.
  • a laser light source may include a blue laser component, a red laser component, and a green laser component.
  • the optical path assembly can mix the light beams emitted by the laser assemblies of multiple colors.
  • the optical path assembly further includes a light diffusing component such as a diffuser, and the light diffusing component can adjust the uniformity of the mixed light beam to improve the light uniformity of the output beam, thereby outputting illumination that meets imaging requirements beam.
  • the laser light source may include only one color laser component (such as a blue laser component), and the optical path component can also include a color wheel, which can be excited by the laser light emitted by the laser component to produce a variety of other colors Of fluorescence.
  • the optical path component can mix the laser beam emitted by the laser component and the fluorescent beam generated by the excitation of the color wheel.
  • the laser light source can also include a light homogenizing member to adjust the uniformity of the mixed light beam.
  • Figure 1 shows a laser assembly.
  • the laser assembly 02A includes a bracket 01, a plurality of lasers 02, and a circuit board 03.
  • Each laser 02 is electrically connected to the circuit board 03, and the circuit board 03 is fixed on the bracket 01, so that a plurality of laser 02 arrays are arranged in the same plane and the light emitting direction is consistent.
  • each laser 02 includes a light emitting part 021, a collimating structure 022 and a substrate 023.
  • the light emitting component 021 is disposed on the substrate 023, and the collimating structure 022 is located on the side of the light emitting component 021 away from the substrate 023.
  • the collimating structure 022 can collimate the light beam emitted by the light emitting component 021.
  • Figure 3 shows another laser assembly.
  • the laser assembly 02B includes a bracket 01, a plurality of lasers 02, and a circuit board 03.
  • Each laser 02 is electrically connected to the circuit board 03, and the circuit board 03 is fixed on the bracket 01, so that a plurality of laser 02 arrays are arranged in the same plane and the light emitting direction is consistent.
  • each laser 02 includes a substrate 023, a light emitting component 021 provided on the substrate 023, and a reflector 024 provided on the substrate 023.
  • the larger area of all the surfaces of the light emitting component 021 is mounted on the substrate 023 with strong thermal conductivity and heat dissipation capability, so that the light emitting component 021 can be better dissipated.
  • the light-emitting component 021 emits light beams in a direction parallel to the substrate 023, and the reflector 024 is located on the optical path of the light-emitting component 021.
  • the reflection surface 0241 of the reflector 024 can reflect the light beam emitted by the light-emitting component 021, so that the light-emitting component 021 emits Of the light beam can exit toward the side of the light emitting part 021 far away from the substrate 023.
  • the light beam can also be collimated by the collimating structure 022.
  • the light emitted by the light emitting component 021 along the fast axis direction (that is, the direction X in FIG. 4) and the slow axis direction (that is, the direction Y in FIG. 4, the direction Y is perpendicular to the direction X) are both
  • the divergence angle ⁇ usually 30° to 70°
  • the divergence angle ⁇ usually 5° to 10°
  • the divergence angle ⁇ of the red light beam emitted by it in the fast axis direction is greater than or equal to 68.2°, while the divergence angle ⁇ in the slow axis direction is only about 8°.
  • the cross section of the light beam emitted by the light emitting component 021 is perpendicular to the optical axis of the light beam.
  • the cross section is elliptical, the intersection of the long axis and short axis of the ellipse intersects the optical axis of the light beam, the fast axis direction X is a direction parallel to the long axis of the ellipse, and the slow axis direction Y is a direction parallel to the short axis of the ellipse.
  • the light beam emitted by the light-emitting component 021 enters the collimating structure 022 with a larger width in the direction of the fast axis X and a smaller width in the direction of the slow axis Y after being collimated by the collimating structure 022
  • the width of the light beam along the fast axis direction X is also larger, and the width along the slow axis direction Y is also smaller. Therefore, in the case where the width of the cross section of the beam output by a single laser 02 is large in the fast axis direction X and the width in the slow axis direction Y is small, the light output uniformity of the entire laser assembly is poor.
  • the maximum cross-sectional width of the beam output by a single laser 02 is relatively large, the maximum cross-sectional width of the outgoing beams of the laser assemblies 02A and 02B including multiple lasers 02 also increases accordingly, resulting in the optical path assembly located on the optical path of the laser assembly.
  • the size of at least some optical elements (such as light combining components such as light combining mirrors and uniform light diffusing components such as diffusers) needs to be designed to be larger in order to achieve the transmission of a beam with a larger maximum width of this cross section, which will be detrimental to subsequent optical path components and
  • the main housing housing the optical path assembly is miniaturized.
  • some embodiments of the present disclosure provide a laser assembly 1, the laser assembly 1 includes a bracket 11 and at least one laser 12, the bracket 11 is provided with at least one mounting groove 11A, at least one laser 12 one by one Correspondingly installed in at least one installation groove 11A.
  • the laser assembly 1 in order to provide a light beam with sufficient brightness, includes a plurality of lasers 12 and a plurality of mounting grooves 11A are provided on the bracket 11. Each laser 12 is installed in a plurality of mounting grooves 11A on the support 11 in a one-to-one correspondence.
  • Each laser 12 includes a light emitting part 121 and a dimming part 122, the light emitting part 121 is configured to emit a light beam, the light dimming part 122 is disposed on the optical path of the light emitting part 121, and the light dimming part 122 is configured to change the light beam along the beam The divergence angle of at least one of the fast axis direction and the slow axis direction. With this design, the maximum width of the cross-section of the beam emitted by each laser 12 can be reduced by the dimming part 122, which is perpendicular to the optical axis of the beam.
  • the size can be designed smaller while ensuring the normal transmission of the outgoing beam of the laser assembly 1, thereby facilitating the miniaturization design of the optical path assembly and the laser light source including the optical path assembly and the laser assembly.
  • the array of the plurality of mounting grooves 11A on the bracket 11 is arranged in the same plane.
  • the multiple lasers 12 when the multiple lasers 12 are installed in the multiple mounting grooves 11A, the multiple lasers 12 also arrange the array in the same plane, so that the light emitting directions of the multiple lasers 12 can be consistent, so that The beams emitted by the two lasers 12 can be condensed into a whole outgoing beam.
  • the bracket 11 is provided with eight mounting slots 11A, and each mounting slot 11A is installed with a laser 12.
  • the laser assembly 1 further includes a circuit board 13 fixed on the bracket 11, and the light emitting part 121 of each laser 12 is electrically connected to the circuit board 13 to control each laser through the circuit board 13
  • the light emitting part 121 of 12 emits a light beam.
  • the light emitting part 121 is a light emitting chip provided separately; or, the light emitting part 121 is a light emitting device formed by encapsulating the light emitting chip and the reflecting prism; or, the light emitting part 121 is an assembly composed of the light emitting chip and the reflecting prism.
  • the light emitting component 121 is a red light emitting component, a blue light emitting component, or a green light emitting component.
  • the light-emitting component 121 is a red light-emitting component, and the red light beam emitted by the red light-emitting component has a large divergence angle along the fast axis direction, which can reach 68.2° or more, and the red light can be greatly reduced by the dimming component 122 The divergence angle of the red light beam emitted by the light-emitting part along the fast axis direction, so as to reduce the maximum width of the cross section of the output beam, which is perpendicular to the optical axis of the beam.
  • the dimming component 122 includes a dimming lens 122A, and the light incident surface f 1 of the dimming lens 122A is configured to transmit the light beam emitted by the light emitting component 121.
  • the light incident surface f 1 of the dimming lens 122A is configured to: reduce the divergence angle of the light beam in the fast axis direction X to reduce the width of the light beam in the fast axis direction X; The divergence angle in the axis direction Y to reduce the width of the beam in the slow axis direction Y.
  • the cross-sectional width of the output beam of the laser 12 in various directions can be reduced, thereby reducing the cross-sectional width of the output beam of the entire laser assembly 1 in various directions, so that at least part of the optical elements in the optical path assembly located on the optical path of the laser assembly 1 (For example, light-combining components such as light-combining mirrors and diffuser components) can be designed to be smaller under the condition of ensuring the normal transmission of the laser beam emitted by the laser assembly 1, which is beneficial to the optical path assembly and the optical path assembly and the laser assembly
  • the laser light source realizes the miniaturized design.
  • the light incident surface f 1 of the dimming lens 122A can only be configured to reduce the divergence angle of the light beam in the fast axis direction X to reduce the width of the light beam in the fast axis direction X. In some examples, the light incident surface f 1 of the dimming lens 122A can only be configured to reduce the divergence angle of the light beam in the slow axis direction Y to reduce the width of the light beam in the slow axis direction Y.
  • the light incident surface f 1 of the dimming lens 122A is configured to reduce the divergence angle of the light beam in the fast axis direction X to reduce the width of the light beam in the fast axis direction X; and , Increase the divergence angle of the beam along the slow axis direction Y to increase the width of the beam in the slow axis direction Y.
  • the optical path can be better homogenized.
  • the light incident surface f 1 of the dimming lens 122A can only be configured to increase the divergence angle of the light beam in the slow axis direction Y to increase the width of the light beam in the slow axis direction Y.
  • the dimming lens 122A is disposed on the optical path of the light emitting component 121; the surface of the dimming lens 122A close to the light emitting component 121 is the light incident surface f 1 , and the light incident surface f 1 is It is configured to transmit the light beam emitted by the light emitting member 121 so that the light beam is emitted toward the opening of the mounting groove 11A.
  • This design allows the light beam emitted by the light emitting component 121 to enter the dimming lens 122A through the light incident surface f 1 , and then strikes the opening of the mounting groove 11A from the light emitting surface f 2 of the dimming lens 122A, so that the light emitting component 121 can be made
  • the emitted light beam is emitted from the opening of the mounting groove 11A, that is, the laser 12 can output the light beam.
  • the intersection of the light incident surface f 1 of the dimming lens 122A and each plane perpendicular to the slow axis direction Y is a straight line to reduce the beam’s along the fast axis direction X Divergence angle; and, the intersection of the light incident surface f 1 of the dimming lens 122A and each plane perpendicular to the fast axis direction X is a concave curve to increase the divergence angle of the light beam along the slow axis direction Y.
  • the dimming lens 122A can reduce the divergence angle of the light beam in the fast axis direction X to reduce the width of the light beam in the fast axis direction X, and the dimming lens 122A can increase the light beam in the slow axis direction Y Divergence angle to increase the width of the beam in the direction of the slow axis Y, so that the cross-section of the output beam of the laser 12 tends to be round, the cross-sectional shape of the output beam is more uniform, which helps to improve the light output of the laser assembly 1 Evenness.
  • only the intersection of the light incident surface f 1 of the dimming lens 122A and each plane perpendicular to the slow axis direction Y can be a straight line to reduce the divergence angle of the beam along the fast axis direction X. In some embodiments, only the intersection of the light incident surface f 1 of the dimming lens 122A and each plane perpendicular to the fast axis direction X can be a concave curve to increase the divergence angle of the light beam along the slow axis direction Y.
  • the intersection of the light incident surface f 1 of the dimming lens 122A and each plane perpendicular to the slow axis direction Y is a straight line, and each intersection is perpendicular to the light-emitting component 121
  • the optical axis of the beam emitted.
  • the light diffused along the fast axis direction X in the light beam emitted by the light-emitting component 121 does not enter vertically when it reaches the light incident surface f 1 of the dimming lens 122A.
  • the optical lens 122A can generate refraction.
  • n 1 ⁇ sin ⁇ 1 n 2 ⁇ sin ⁇ 2 , where n 1 is the refractive index of the substance in the gap between the light emitting component 121 and the dimming lens 122A, and ⁇ 1 is the mid-edge fast beam emitted from the light emitting component 121
  • n 2 is the refractive index of the material of the dimming lens 122A
  • ⁇ 2 is the light diffused along the fast axis direction X in the light beam emitted by the light emitting component 121 The angle of refraction after entering the dimming lens 122A.
  • the lens 122A can reduce the divergence angle of light in the fast axis direction X among the light beams emitted by the light emitting member 121.
  • the design difficulty of the light incident surface f 1 of the dimming lens 122A can also be reduced Therefore, the complexity of the structure is reduced, and the purpose of making the dimming lens 122A easy is achieved.
  • the larger n 2 is, the smaller ⁇ 2 is, and the greater the degree of reduction of the divergence angle of the light beam emitted by the light emitting component 121 along the fast axis direction X is output through the dimming lens 122A
  • the width of the light beam along the fast axis direction X is smaller.
  • the larger n 2 will also increase the cost of the dimming lens 122A, and the attenuation of the light beam emitted by the light-emitting component 121 after passing through the dimming lens 122A will increase.
  • n 2 is 1.5 to 1.9, so that the dimming effect of the dimming lens 122A, the cost of the dimming lens 122A, and the attenuation effect of the dimming lens 122A on the light beam emitted by the light emitting member 121 can be taken into account at the same time.
  • n 2 may be any value between 1.5 and 1.9, such as but not limited to 1.5, 1.6, 1.7, 1.8, 1.9, 1.55, 1.65, 1.75, 1.85, and so on.
  • the intersection of the light incident surface f 1 of the dimming lens 122A and each plane perpendicular to the slow axis direction Y is a convex curve. According to the principle that the light rays passing through the convex lens converge, the light beam can be reduced The divergence angle of X along the fast axis.
  • the intersection of the light incident surface f 1 of the dimming lens 122A and each plane perpendicular to the fast axis direction X is a concave curve.
  • the light incident surface f 1 of the dimming lens 122A can reduce the divergence angle of the light beam emitted by the light emitting member 121 in the fast axis direction X, and also increase the divergence of the light beam emitted by the light emitting member 121 in the slow axis direction Y angle.
  • the curvature of the concave curve can be maintained unchanged (that is, the concave curve is a concave arc), or can be continuously changed (for example, the curvature of the concave curve is 0.5, 0.8 in order Or 1.2 etc.).
  • the curvature value of the concave curve is greater than 0 and less than 1. In this way, the bending degree of each position on the concave curve is small, which is helpful to reduce the difficulty of processing.
  • the distance d between the dimming lens 122A and the light emitting part 121 is greater than 0 mm and less than or equal to 1.5 mm, for example, d is 0.5mm or 0.8mm or 1.5mm. In this way, the gap between the dimming lens 122A and the light emitting component 121 is small, which is advantageous for achieving a compact design of the laser assembly.
  • the distance d between the dimming lens 122A and the light-emitting component 121 is 0.56 mm in the direction of the optical axis of the light beam emitted by the light-emitting component 121, so that the gap between the dimming lens 122A and the light-emitting component 121 is moderate This not only facilitates the compact design of the laser assembly, but also prevents the gap between the dimming lens 122A and the light emitting component 121 from being too small, which increases the design difficulty of the light incident surface f 1 of the dimming lens 122A.
  • each laser 12 further includes: a light collimating lens 123 disposed on the side of the dimming lens 122A away from the light emitting component 121, the light collimating The light exit surface 1232 of the lens 123 is configured to collimate the light beam adjusted by the dimming lens 122A.
  • the dimming lens 122A can change the divergence angle of the light beam emitted by the light emitting part 121 before entering the light collimating lens 123 in at least one of the fast axis direction X and the slow axis direction Y.
  • the light beam after passing through the dimming lens 122A is substantially parallel after passing through the light collimating lens 123.
  • the dimming lens 122A can reduce the divergence angle of the light beam emitted by the light emitting component 121 along the fast axis direction X, thereby reducing the rear edge of the light beam collimated by the light collimating lens 123 The width of the fast axis direction X.
  • the single laser 12 can reduce the divergence angle of the light beam emitted by the light-emitting part 121 along the fast axis direction X through the dimming lens 122A, so as to achieve the purpose of reducing the width of the light beam emitted by the single laser along the fast axis direction, thereby being able to reduce
  • the maximum width of the cross-section of the outgoing beam of the laser assembly 1 can further reduce the size of at least some optical elements in the optical path assembly located on the optical path of the laser assembly 1, thereby enabling the design of the optical path assembly to be miniaturized.
  • the cross-section of the output beam of the laser 12 will be closer to a circle, making the cross-sectional shape of the output beam of the laser 12 more uniform, which helps In order to improve the uniformity of the light output of the laser assembly 1, when the laser assembly 1 is used in conjunction with a light-diffusion component such as a diffuser in the optical path assembly, the light-diffusion component can better homogenize the light path.
  • a light-diffusion component such as a diffuser in the optical path assembly
  • the light exit surface f 2 of the dimming lens 122A is in contact with the light incident surface 1231 of the light collimating lens 123, and the material of the light dimming lens 122A is in contact with the light collimating lens 123
  • the materials are the same; or, the dimming lens 122A and the light collimating lens 123 are of an integrated structure.
  • the light emitting component 121 can be reduced
  • the purpose of collimating the light beam emitted by the light-emitting component 121 is achieved. Therefore, the design difficulty of the dimming lens 122A and the light collimating lens 123 can be reduced, and the design and processing costs can be reduced.
  • the dimming lens 122A and the light collimating lens 123 have an integrated structure, the number of components in the laser assembly can be reduced, and assembly difficulty can be reduced.
  • the light exit surface f 2 of the dimming lens 122A When the light exit surface f 2 of the dimming lens 122A is in contact with the light entrance surface 1231 of the light collimating lens 123, and the material of the light dimming lens 122A is the same as the material of the light collimating lens 123, the light exit surface f of the light dimming lens 122A 2 is adapted to the light incident surface 1231 of the light collimating lens 123.
  • the light incident surface 1231 of the light collimating lens 123 is also flat; when the light exit surface f 2 of the dimming lens 122A is convex curved surface, the light collimating lens 123
  • the light incident surface 1231 is a concave curved surface with the same curvature as the light exit surface f 2 of the dimming lens 122A. In some examples, as shown in FIGS.
  • the light exit surface f 2 of the dimming lens 122A is in contact with the light entrance surface 1231 of the light collimating lens 123, and both are in contact with the optical axis of the light beam emitted by the light emitting component 121 A vertical plane.
  • the structures of the dimming lens 122A and the light collimating lens 123 are simple, which is helpful to reduce the positioning difficulty between the dimming lens 122A, the light collimating lens 123, and the light emitting component 121.
  • the light incident surface 1231 of the light collimating lens 123 is provided with a positioning groove, and the side where the light exit surface f 2 of the dimming lens 122A is located is embedded in the positioning groove.
  • the light emitting part 121, the dimming lens 122A, and the light collimating lens 123 included in each laser 12 may be fixed on the bracket 11.
  • the bracket 11 can support multiple lasers 12 and ensure the relative positional relationship between the light emitting part 121 of each laser 12, the dimming lens 122A and the light collimating lens 123.
  • the structure of the support 11 and the connection between the support 11 and the laser 12 include but are not limited to the following three examples:
  • Example 1 As shown in FIGS. 5 and 6, the bracket 11 is a block structure.
  • the bracket 11 is provided with a mounting groove 11A at a position corresponding to each laser 12, and the light emitting component 121 is fixed to the bottom wall of the corresponding mounting groove 11A.
  • the dimming lens 122A and the light collimating lens 123 are fixed on the side wall of the corresponding mounting groove 11A.
  • This bracket 11 has a simple structure and can accommodate the laser 12 inside, thereby improving the protection effect of the laser 12.
  • the dimming lens 122A is directly fixed to the side wall of the mounting groove 11A; or, as shown in FIG. 6, the dimming lens 122A is fixed to the light collimating lens 123 and fixed to the installation through the light collimating lens 123 The side wall of the groove 11A.
  • the light collimating lens 123 is fixed on the side wall of the mounting groove 11A by bonding or snapping. In other possible designs, as shown in FIG.
  • a step surface a is provided on the side wall of the mounting groove 11A, and the light incident surface of the light collimating lens 123 bears on the step surface a, and the mounting groove 11A is sleeved with
  • the tin ring 124 is located on the optical path of the light collimating lens 123. Heating the tin ring 124 can melt the tin ring 124 and fix it with the bracket 11, thereby being able to clamp the light collimating lens 123 on the step surface a Tin ring 124.
  • the bracket 11 includes a support plate 111, a plurality of bottom plates 112, and a plurality of cylindrical housings 113, the plurality of bottom plates 112 are fixed to the support plate 111, and a plurality of light emitting components of the laser 12 121 is fixed to the plurality of bottom plates 112 on a one-to-one basis, and the plurality of cylindrical shells 113 are provided on the outside of the plurality of light-emitting parts 121 on a one-to-one basis, and the axial direction of each cylindrical shell 113 is the same as the cylindrical shell 113
  • the light emitting directions of the corresponding light emitting components 121 are parallel, and the dimming lenses 122A and the light collimating lenses 123 of the plurality of lasers 12 are fixed in the plurality of cylindrical housings 113 one by one. With this design, the bracket 11 can use less material and have a lighter weight.
  • the laser assembly 1 includes a support 11 and a plurality of lasers 12.
  • the support 11 is a plate-like structure, and the support 11 is provided with a groove 11B.
  • the light emitting parts 121 of the plurality of lasers 12 are disposed on the bottom wall of the groove 11B, the dimming lens 122A of each laser 12 is fixed on the light collimating lens 123, and the light collimating lens 123 of the plurality of lasers 12 is formed through an integral molding process
  • An integrated structure is formed.
  • the integrated structure covers the opening of the groove 11B, and the integrated structure is fixed to the bracket 11. This design is conducive to reducing the distance between any two adjacent lasers 12 in the laser assembly, and realizing the compact design of the laser assembly.
  • the dimming component 122 includes a reflector 122B, and the light incident surface f 3 of the reflector 122B is configured to reflect the light beam emitted by the light emitting component 121.
  • each laser 12 further includes a substrate 120.
  • the light emitting component 121 and the reflector 122B are both disposed on the substrate 120.
  • the light emitting direction of the light emitting component 121 is parallel to the substrate 120.
  • the reflector 122B is disposed on the optical path of the light emitting component 121, that is, the reflector 122B is located on the light emitting path of the light emitting component 121.
  • the surface of the reflector 122B close to the light emitting member 121 is the light incident surface f 3 , and the light incident surface f 3 is configured to reflect the light beam emitted by the light emitting member 121 so that the light beam is emitted in a direction away from the substrate 120.
  • the light incident surface f 3 is configured to change the divergence angle of the light beam along at least one of the fast axis direction and the slow axis direction of the light beam.
  • the maximum width of the cross-section of the beam emitted by each laser 12 can be reduced by the reflector 122B, which is perpendicular to the optical axis of the beam. Furthermore, it is possible to reduce the maximum width of the cross-section of the light beam emitted by the entire laser module 1, so that at least part of the optical elements (such as light combining components such as light combining mirrors and diffuser such as diffuser) in the optical path components located on the optical path of the laser component 1
  • the size can be designed smaller while ensuring the normal transmission of the outgoing beam of the laser assembly 1, thereby facilitating the miniaturization design of the optical path assembly and the laser light source including the optical path assembly and the laser assembly.
  • the reflecting member 122B can also be used to collimate light, thereby omitting the use of a collimating lens, which will be described in detail later.
  • the light incident surface f 3 of the reflector 122B is a concave curved surface, and the light incident surface f 3 is perpendicular to one of the fast axis direction X and the slow axis direction Y
  • the intersecting lines of each plane are concave curves. Designed in such a way that the light incident surface f 3 of the reflector 122B can reflect the light beam emitted by the light emitting component 121 in a direction away from the substrate 120 while reducing the light beam emitted by the light emitting component 121 in the fast axis direction X or the slow axis direction Y Divergence angle in the other direction.
  • the divergence angle of the light beam emitted by the light emitting member 121 along the slow axis direction Y can be reduced.
  • the divergence angle of the light beam emitted by the light emitting member 121 in the fast axis direction X can be reduced.
  • the design size of the optical path component located on the optical path of the laser component can be reduced, which is conducive to miniaturization of the laser projection device design.
  • the light incident surface f 3 of the reflector 122B and each plane of the other direction perpendicular to the fast axis direction X and the slow axis direction Y The intersection lines are all concave curves. In this way, the light incident surface f 3 can simultaneously reduce the divergence angle of the light beam emitted by the light emitting member 121 along the slow axis direction Y and the fast axis direction X.
  • the size of the optical path component located on the optical path of the laser component can be designed to be smaller, which will be more conducive to the miniaturization design of the laser projection device.
  • Example 1 As shown in FIGS. 14 and 15, the light incident surface f 3 of the reflector 122B is a concave curved surface, and the intersection of the light incident surface f 3 and each plane perpendicular to the fast axis direction X is a concave curve. In this way, while the light incident surface f 3 reflects the light beam emitted by the light emitting member 121 in a direction away from the substrate 120, it can shrink the light diverging along the slow axis direction Y, thereby reducing the light beam emitted by the light emitting member 121 along the slow axis direction The divergence angle of Y.
  • the light incident surface f 3 of the reflector 122B can shrink the divergence angle of the light beam emitted by the light emitting member 121 along the slow axis direction Y from ⁇ (usually 5°-10°) to ⁇ 1 , for example ⁇ 1 It is 0° or 1° or 2° or 3° or 4° or 5°. It can be understood that the divergence angle ⁇ 1 after contraction is not limited here.
  • the concave curve is a concave arc or a concave parabola, which can make the light incident surface f 3 of the reflector 122B contract the light diverging along the slow axis direction Y, thereby reducing the light beam emitted by the light emitting component 121 along the The divergence angle in the slow axis direction Y.
  • the curved shape of the above concave curve is not limited here.
  • intersection of the light incident surface f 3 of the reflector 122B and each plane perpendicular to the slow axis direction Y may be a straight line or a curved line or a concave curved line.
  • the reflective member 122B of the flat surface of a column f 3 has the advantages of regular structure and convenient processing.
  • the light incident surface f 3 of the reflector 122B and each plane perpendicular to the slow axis direction Y is a concave curve, as shown in FIGS. 16 and 17, the light incident surface f 3 is along the slow axis at the contraction light emitting part 121
  • the light diverging in the direction Y can also shrink the light emitted by the light emitting member 121 along the fast axis direction X, that is, the light incident surface f 3 can simultaneously reduce the light beam emitted by the light emitting member 121 diverging along the slow axis direction Y and the fast axis direction X Angle, therefore, when the laser 12 with the reflector 122B is applied to a laser projection device such as a laser TV, a laser projector, etc., the design size of the optical path component on the optical path of the laser component can be reduced, which is beneficial to the realization of the laser projection device Miniaturized design.
  • the light incident surface f 3 of the reflector 122B can shrink the divergence angle of the light beam emitted by the light emitting member 121 along the fast axis direction X from ⁇ (typically 30° ⁇ 70°) to ⁇ 1 .
  • ⁇ 1 is 0° or 1° or 2° or 3° or 4° or 5° or 10°. It can be understood that the divergence angle ⁇ 1 after contraction is not limited here.
  • the light incident surface f 3 of the reflector 122B is a concave curved surface, and the intersection of the light incident surface f 3 and each plane perpendicular to the slow axis direction Y is a concave curve.
  • the reflection surface 31 can reflect the light beam emitted by the light emitting member 121 in a direction away from the substrate 120, and can shrink the light emitted in the fast axis direction X to reduce the light emitted by the light emitting member 121 along the fast axis direction X Divergence angle.
  • the light incident surface f 3 of the reflector 122B shrinks the divergence angle of the light emitting member 2 along the fast axis direction X from ⁇ (usually 30° to 70°) to ⁇ 1 , for example, ⁇ 1 is 0° Or 1° or 2° or 3° or 4° or 5° or 10° etc. It can be understood that the divergence angle ⁇ 1 after contraction is not limited here.
  • the concave curve is a concave arc or a concave parabola, which can make the light incident surface f 3 of the reflector 122B contract the light diverging along the fast axis direction X, thereby reducing the light beam emitted by the light emitting component 121 along the The divergence angle of the fast axis direction X.
  • the curved shape of the above concave curve is not limited here.
  • intersection of the light incident surface f 3 of the reflector 122B and each plane perpendicular to the fast axis direction X may be a straight line, a curve, or a concave curve.
  • the reflective member perpendicular to the light incident surface 122B and f 3 in the X direction of the fast axis of each line of intersection of a plane are straight lines, 18 and 19, the reflective member 122B of the flat surface of a column f 3
  • the reflector 122B has the advantages of regular structure and convenient processing.
  • the light incident surface f 3 of the reflector 122B and each plane perpendicular to the fast axis direction X is a concave curve, as shown in FIGS. 20 and 21, the light incident surface f 3 is along the fast axis at the contraction light emitting member 121
  • the light diverging in the direction X can also shrink the light emitted by the light emitting component 121 along the slow axis direction Y, that is, the light incident surface f 3 can simultaneously reduce the light beam emitted by the light emitting component 121 diverging along the fast axis direction X and the slow axis direction Y Angle, therefore, when the laser 12 with the reflector 122B is applied to a laser projection device such as a laser TV, a laser projector, etc., the design size of the optical path component on the optical path of the laser component can be reduced, which is beneficial to the realization of the laser projection device Miniaturized design.
  • the light incident surface f 3 of the reflector 122B can shrink the divergence angle of the light beam emitted by the light emitting member 121 along the slow axis direction Y from ⁇ (typically 5°-10°) to ⁇ 1 .
  • ⁇ 1 is 0° or 1° or 2° or 3° or 4° or 5°. It can be understood that the divergence angle ⁇ 1 after contraction is not limited here.
  • the slow axis direction Y of the light beam emitted by the light emitting component 121 is parallel to the substrate 120 (the angle with the substrate 120 is 0°), or perpendicular to the substrate 120 (the angle with the substrate 120 is 90°), or, with the substrate 120 It is set at an angle of (0°, 90°). Accordingly, the fast axis direction X and the slow axis direction Y of the light beam emitted by the light emitting component 121 are perpendicular to each other.
  • the fast axis direction X of the light beam emitted by the light emitting component 121 may be parallel to the substrate 120 (the angle with the substrate 120 is 0°), or perpendicular to the substrate 120 (the angle with the substrate 120 is 90°), or, The substrate 120 is inclined at an angle of (0°, 90°).
  • the angle interval (0°, 90°) may refer to an interval between 0° and 90°, and the included angle may be any value within the interval, for example, 5°, 10°, 15°, 20° , 30°, 45°, 60°, 75°, 80° or 85°.
  • the slow axis direction Y of the light beam emitted by the light emitting component 121 is parallel to the substrate 120, and the fast axis direction X of the light beam emitted by the light emitting component 121 is perpendicular to the substrate 120.
  • the maximum width of the light exit port 1211 of the light emitting member 121 in the fast axis direction is reduced, the convexity of the light emitting member 121 can be reduced when all the light in the light beam emitted by the light emitting member 121 impinges on the reflector 122B
  • the height of the output substrate 120 is beneficial to reduce the height of the laser 12 in the direction of its light exit.
  • the largest heat generating surface of the light emitting member 121 is in contact with the substrate 120, and the heat generated when the light emitting member 121 emits light can be effectively dissipated.
  • the slow axis direction Y of the light beam emitted by the light emitting component 121 may be perpendicular to the substrate 120, and the fast axis direction X of the light beam emitted by the light emitting component 121 may be parallel to the substrate 120. In this way, the height of the light emitting component 121 protruding from the substrate 120 can be greatly reduced, which is beneficial to reduce the height of the laser 12 in the light emitting direction.
  • the fast axis direction X of the beam is perpendicular to the substrate 120, and the slow axis direction Y of the beam is parallel to the substrate 120; the light incident surface of the reflector 122B
  • the intersection of f 3 and each plane perpendicular to the fast axis direction X is a concave arc, and the angle between the tangent plane of the light incident surface f 3 of the reflector 122B at each point on the concave arc line and the fast axis direction X All are equal to make the light incident surface f 3 form an aspheric surface, and the light outlet 1211 of the light emitting member 121 is located on the line 1 of the center of the circle corresponding to each concave arc line to realize the center-to-center setting.
  • the light beam emitted by the light emitting member 121 along the slow axis direction Y is reflected in the same light exit direction after being reflected by the light entrance surface f 3 , and can diverge the divergent light emitted by the light emitting member 121 along the slow axis direction Y into parallel rays, thereby achieving collimation
  • the purpose of the light emitted by the light emitting member 121 along the slow axis direction Y is reflected in the same light exit direction after being reflected by the light entrance surface f 3 , and can diverge the divergent light emitted by the light emitting member 121 along the slow axis direction Y into parallel rays, thereby achieving collimation
  • the purpose of the light emitted by the light emitting member 121 along the slow axis direction Y is reflected in the same light exit direction after being reflected by the light entrance surface f 3 , and can diverge the divergent light emitted by the light emitting member 121 along the slow axis direction
  • the radius r 1 of each concave arc is 2 mm to 5 mm.
  • the radius r 1 of each concave arc may be 2 mm, 3 mm, or 5 mm, etc., and is not specifically limited herein. In this way, the distance between the reflector 122B and the light emitting member 121 is moderate, and the compactness of the laser 12 and the difficulty in processing the reflector 122B can be taken into consideration.
  • the fast axis direction X of the light beam is perpendicular to the substrate 120, and the slow axis direction Y of the light beam is parallel to the substrate 120; the light incident surface f 3 of the reflector 122B is perpendicular to the slow axis direction Y
  • the intersection of any plane is a concave arc, and the angle between the tangent plane of the light incident surface f 3 of the reflector 122B at each point on the concave arc and the slow axis direction Y is equal to make the light incident surface f 3 is formed aspherical, the light emitting member the light outlet 1211 to achieve a concentrically arranged centering on a respective recess located at the center of the arc corresponding to the connection l.
  • the light beams emitted by the light emitting component 121 along the fast axis direction X are reflected in the same light exit direction after being reflected by the light entrance surface f 3 , so that the divergent light emitted by the light emitting component 121 along the fast axis direction X can be converted into parallel rays, thereby achieving collimation
  • the purpose of the light emitted by the light emitting member 121 along the fast axis direction X is the purpose of the light emitted by the light emitting member 121 along the fast axis direction X.
  • the radius r 2 of each concave arc is 2 mm to 5 mm.
  • the radius r 2 of each concave arc may be 2 mm, 3 mm, or 5 mm, etc., which is not specifically limited herein. In this way, the distance between the reflector 122B and the light emitting member 121 is moderate, and the compactness of the laser 12 and the difficulty in processing the reflector 122B can be taken into consideration.
  • the light exit port 1211 of the light emitting component 121 is provided at the intersection of the connection line l and the connection line l 1 , so that the light incident surface of the reflector 122B f 3 can simultaneously reflect and collimate the light emitted by the light emitting member 121 in the fast axis direction X and the slow axis direction Y. Therefore, the laser 12 does not need to be provided with a separate collimating structure, that is, it can collimate the divergent light of the light-emitting part 121 along the fast axis direction X and the slow axis direction Y, which can reduce the structural complexity of the laser projection device and reduce the laser The cost of projection equipment.
  • the light incident surface f 3 of the reflector 122B can collimate the light emitted by the light emitting member 121 along the fast axis direction X, and it is not necessary to shrink the divergence angle of the light diffused by the light emitting member 121 along the fast axis direction X To 0°, but when the light incident surface f 3 shrinks the divergence angle of the light emitted by the light emitting member 121 along the fast axis direction X to any angle within the range of [0°, 5°], it can be considered as incident light
  • the surface f 3 collimates the light emitted by the light emitting member 121 in the fast axis direction X.
  • the light incident surface f 3 of the reflector 122B can collimate the light emitted by the light emitting member along the slow axis direction Y, and it is not necessary to reduce the divergence angle of the light diffused by the light emitting member 121 along the slow axis direction Y to 0°, and When the light incident surface f 3 shrinks the divergence angle of the light diffused by the light emitting member 121 along the slow axis direction Y to any angle within the range of [0°, 5°], it can be considered that the light incident surface f 3 is collimated
  • the light emitted by the light diffused by the light emitting member 121 along the slow axis direction Y is shown.
  • the range of [0°, 5°] may refer to the interval between 0° and 5°, including 0° and 5°.
  • the divergence angle may be any value within the interval, for example, 0°, 1°, 2°, 3°, 4°, and 5°.
  • the reflective member 122B is a prism or a reflective lens.
  • the light emitting component 121 is directly mounted on the substrate 120; or, as shown in FIGS. 14 to 21, the light emitting component 121 is indirectly mounted on the substrate 120 through a structure such as a heat sink 126, that is, the heat sink 126 is mounted on the substrate 120 On the top, the light emitting member 121 is mounted on the heat sink 126.
  • the heat sink has a high thermal conductivity and can play a role of heat dissipation, for example, it can be a metal block (copper block) and other structures.
  • the light emitting component 121 When the light emitting component 121 is directly connected to the substrate 120, there are various connection methods.
  • the light emitting component 121 may be connected to the substrate 120 through screw connection, snap connection, adhesive bonding, welding, or the like.
  • the light-emitting component 121 is bonded to the substrate 120 through a thermally conductive adhesive.
  • the thermal conductivity of the thermally conductive adhesive is good, and the heat generated by the light-emitting component 121 during operation can be effectively transferred to the substrate 120 and further diffused from the substrate 120 to the outside world. Environment.
  • the light-emitting component 121 is welded to the substrate 120, and the welding method is stronger, and the welding material is usually a metal material.
  • the metal material has better thermal conductivity, and can effectively transfer the heat generated by the light-emitting component 121 to the substrate 120, and further diffused from the substrate 120 to the external environment.
  • the reflector 122B may be directly connected to the substrate 120, or may be indirectly connected to the substrate 120 through a structure such as a backing plate, which is not specifically limited herein.
  • a structure such as a backing plate
  • the reflective member 122B when the reflective member 122B is directly connected to the substrate 120, there are various connection methods.
  • the reflective member 122B may be connected to the substrate 120 through screw connection, snap connection, or adhesive bonding, which is not specifically limited herein.
  • the substrate 120 plays a role of heat dissipation, and the material of the substrate 120 may be copper, aluminum, iron, etc., which is not specifically limited herein.
  • the material of the substrate 120 is copper or a copper alloy, and the heat dissipation effect of the copper or the copper alloy is better, which can quickly dissipate the heat generated by the light-emitting component 121 during operation.
  • each laser 12 includes at least one light emitting component 121, and the at least one light emitting component 121 is sequentially arranged along the circumferential direction of the reflective member 122B; the reflective member 122B includes at least one light incident surface f 3 , at least one light incident surface f 3 corresponds to at least one light emitting member 121 in one-to-one correspondence.
  • the brightness of the laser 12 can be improved by providing a plurality of light emitting parts 121.
  • the number of the light-emitting components 121 may be 6 or 8 or 10, etc., which is not specifically limited here, and may be specifically set according to the brightness requirements of the laser 12.
  • the arrangement position of the light emitting members 121 is not specifically limited. For example, as shown in FIG. 22, a plurality of light emitting members 121 are arranged around opposite sides of the reflector 122B. For another example, as shown in FIG. 23, a plurality of light emitting members 121 are arranged around the four sides of the reflector 122B.
  • the light emitting part 121 may be any one of a red light emitting part, a blue light emitting part, or a green light emitting part.
  • a light-emitting component of one color is provided for each light incident surface of the corresponding reflector 122B.
  • a blue light emitting part is provided on the left side of the reflector 122B, and a red light emitting part is provided on the right side.
  • the blue and light emitting parts are provided on the upper and left sides of the reflector 122B, the red light emitting parts are provided on the lower side, and the green light emitting parts are provided on the right side.
  • the distance between two adjacent light emitting members 121 is 1 mm to 10 mm. In this way, interference between the light beams emitted by two adjacent light-emitting parts 121 can be avoided.
  • the dimming component 122 includes a dimming lens 122A and a reflective member 122B.
  • the dimming lens 122A is disposed on the substrate 120 and located on the optical path of the light emitting component 121.
  • the surface of the dimming lens 122A near the light emitting component 121 is a light incident surface, and the light incident surface is configured to transmit the light beam emitted by the light emitting component 121
  • the light beam is emitted toward the reflector 122B, and the light incident surface is configured to change the divergence angle of the light beam along at least one of the fast axis direction and the slow axis direction of the light beam.
  • the reflector 122B is disposed on the substrate 120 and is located on the side of the dimming lens 122A away from the light emitting component 121.
  • the reflector 122B is configured to reflect the light beam transmitted by the dimming lens 122A so that the light beam is emitted in a direction away from the substrate 120.
  • the laser assembly 1 further includes a collimating lens 123 to collimate the light beam reflected by the reflector 122B.
  • the reflector 122B in the laser assembly shown in FIG. 13 can be regarded as an integrated structure of the reflector 122B and the dimming lens 122A in the laser assembly shown in FIG. 24.
  • the laser 12 shown in FIG. 24 saves the use of optical components, and its structure is more compact, which is more conducive to achieving a miniaturized design.
  • the laser light source 2 includes any one of the laser assembly 1, the main housing 21, and the optical path assembly 22 described above.
  • the main casing 21 is located on the optical path of the laser assembly 1, and the main casing 21 is fixedly connected to the laser assembly 1.
  • the optical path assembly 22 is disposed in the main casing 21, and the main casing 21 is provided with a light inlet 211, a light inlet 211 is located on the light exit path of the laser assembly 1.
  • the laser light source 2 includes any one of the laser assemblies 1 described above, the laser light source 2 provided by some embodiments of the present disclosure and any of the laser assemblies 1 described above can solve the same or similar technical problems and achieve the same or similar expected effects.
  • Some embodiments of the present disclosure provide a laser projection device 3, as shown in FIG. 26, including the above-mentioned laser light source 2, an optical machine 31 and a projection lens 32 connected in sequence, wherein the optical machine 31 is used to The illumination beam is modulated to generate an image beam, and the image beam is projected onto the projection lens 32, and the projection lens 32 is used to image the image beam.
  • the laser projection device 3 includes the laser light source 2 described above, the laser projection device 3 provided by some embodiments of the present disclosure can solve the same technical problems as the laser light source 2 described in the foregoing embodiment, and achieve the same expected effect.
  • the laser projection device 3 further includes a projection screen 33, which is disposed on the light exit path of the projection lens 32, and the projection beam imaged by the projection lens 32 is formed on the projection screen 33 Project the screen.

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Abstract

一种激光器组件(1)，包括：支架(11)，支架(11)包括至少一个安装槽(11A)，至少一个安装槽(11A)中的每个包括开口；至少一个激光器(12)，至少一个激光器(12)一一对应地安装于至少一个安装槽(11A)内。至少一个激光器(12)中的每个包括：发光部件(121)，其被配置为发出光束；调光部件(122)，其设置于发光部件(121)的光路上，调光部件(122)包括入光面(f1)，调光部件(122)的入光面(f1)设置为靠近发光部件(121)，入光面(f1)被配置为使发光部件(121)所发出的光束朝向安装槽(11A)的开***出，并且入光面(f1)被配置为改变光束沿光束的快轴方向和慢轴方向中的至少一者的发散角度。

Description

激光器组件、激光光源和激光投影设备
本公开要求于2018年12月24日提交中国专利局、申请号为201811583139.8，以及2019年03月19日提交中国专利局、申请号为201910210132.X的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及激光投影技术领域，尤其涉及一种激光器组件、激光光源和激光投影设备。
背景技术
激光器组件可以提供激光光束，其为激光电视、激光投影仪等激光投影设备中的重要组成部件之一。
发明内容
一方面，提供一种激光器组件。所述激光器组件包括：支架，所述包括设有至少一个安装槽，至少一个安装槽中的每个包括开口；至少一个激光器，所述至少一个激光器一一对应地安装于所述至少一个安装槽内。所述至少一个激光器中的每个包括：发光部件，其被配置为发出光束；调光部件，其设置于所述发光部件的光路上，所述调光部件包括入光面。所述调光部件的入光面设置为靠近所述发光部件，所述入光面被配置为使所述发光部件所发出的光束朝向所述安装槽的开***出，并且所述入光面被配置为改变所述光束沿该光束的快轴方向和慢轴方向中的至少一者的发散角度。
另一方面，提供一种激光光源。所述激光光源包括：如上所述的激光器组件；主壳体，设置在所述激光器组件的光路上，且与所述激光器组件固定连接，所述主壳体包括入光口，所述入光口设置在激光器组件的出光路径上；光路组件，设置于所述主壳体内。
另一方面，提供一种激光投影设备。所述激光投影设备包括：如上所述的激光光源；光机，设置于所述激光光源发出的光束的光路上，被配置为对所述激光光源发出的光束进行调制，以生成影像光束，并发射出所述影像光束；投影镜头，设置于所述激光光源发出的光束的光路 上，所述投影镜头被配置为接收所述影像光束，并基于所述影像光束进行成像。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍。显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。
图1为一种激光器组件的结构示意图；
图2为图1所示激光器组件的剖视图；
图3为另一种激光器组件的结构示意图；
图4为图2和图3中的发光部件所发出光束沿快轴方向和慢轴方向的光路示意图；
图5为本公开一些实施例提供的一种激光器组件的结构示意图，所述激光器组件中的发光部件所发出的光束大体垂直于发光部件所在的平面；
图6为图5所示激光器组件的示意地剖视图；
图7为图6所示的激光器组件中的单个激光器的结构示意图；
图8为图7所示激光器的A-A向剖视图；
图9为本公开一些实施例提供的再一种激光器组件的结构示意图，所述激光器组件中的发光部件所发出的光束大体垂直于发光部件所在的平面；
图10为图9所示激光器组件的剖视结构示意图；
图11为本公开一些实施例提供的另一种激光器组件的结构示意图，所述激光器组件中的发光部件所发出的光束大体垂直于发光部件所在的平面；
图12为图11所示激光器组件的剖视结构示意图；
图13为本公开一些实施例提供的一种激光器组件的结构示意图，所述激光器组件中的发光部件所发出的光束大体平行于发光部件所在的平面；
图14为图13所示的激光器组件中的一种单个激光器的结构示意图；
图15为图14所示激光器的主视图；
图16为图13所示的的激光器组件中的另一种单个激光器的结构示意图；
图17为图16所示激光器的主视图；
图18为图13所示的激光器组件中的又一种单个激光器的结构示意图；
图19为图18所示激光器的主视图；
图20为图13所示的激光器组件中的又一种单个激光器的结构示意图；
图21为图20所示激光器的主视图；
图22为图13所示的激光器组件中的一种单个激光器的俯视图，所述激光器中的发光部件所发出的光束大体平行于发光部件所在的平面；
图23为图13所示的激光器组件中的另一种单个激光器的俯视图，所述激光器中的发光部件所发出的光束大体平行于发光部件所在的平面；
图24为本公开一些实施例提供的又一种激光器组件的结构示意图，所述激光器组件中的发光部件所发出的光束大体平行于发光部件所在的平面；
图25为本公开一些实施例提供的一种激光光源的结构示意图；
图26为本公开一些实施例提供的一种激光投影设备的结构示意图；
图27为本公开一些实施例提供的另一种激光投影设备的等效结构示意图。
具体实施方式
下面将结合附图，对本公开的一些实施例进行描述。显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
在本公开实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人 员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
在说明书和权利要求书中，在明确声明的含义之外术语可以具有在上下文中暗示的细微差别的含义。同样地，短语“在一个实施例中”或“在一些实施例中”不一定指代相同的实施例，短语“在另一个实施例中”或“在其他实施例中”不一定指代不同的实施例。类似地，短语“在一个示例中”或“在一些示例中”不一定指代相同的示例，短语“在另一个示例中”或“在其他示例中”不一定指代不同的示例。例如，所要求保护的主题旨在全部或部分地包括示例性实施例或示例的组合。
通常，可以至少部分地从在上下文中的使用来理解术语。例如，本文所使用的诸如“和”、“或”、“和/或”之类的术语可以包括各种含义，这些含义可以至少部分地取决于使用这些术语的上下文。通常，“或”如果用于连接几个对象，例如A，B或C，则意图表示A，B和C(此处是包含的意思)以及A，B或C(此处是单独的意思)。“和/或”如果用于连接几个对象，例如“A和/或B”，则应理解为仅为A，仅为B，或A和B。即，“A和/或B”包括三种关系。另外，如本文所使用的术语“一个或多个”或“至少一个”，至少部分地取决于上下文，可以用于以单数意义描述任何特性、结构或特征，或者可以用于描述复数意义上的特性、结构或特征的组合。通常，如果“至少一个”用于连接几个对象，例如“A和B中的至少一个”，则应理解为“仅A，仅B，或A和B两者”。类似地，至少部分地基于上下文，诸如“一个”或“该”之类的术语可以被理解为表示单数用法或表示复数用法。另外，至少部分地基于上下文，术语“基于”或“由......确定”可以被理解为不一定旨在表达一组排他性要素，而是可以允许存在不一定明确描述的其他要素。
激光投影设备是采用激光光源作为显示光源并配合投影显示技术成像的投影显示设备，例如激光电视、激光投影仪等。激光光源主要包括激光器组件和光路组件。激光器组件能够发出激光光束，激光器组件根据其发光颜色可分为红色激光器组件、蓝色激光器组件及绿色激光器组件等。
在一个示例中，激光光源可以包括多种颜色的激光器组件。例如，一个激光光源可以包括蓝色激光器组件和红色激光器组件。再例如，一个激光光源可以包括蓝色激光器组件、红色激光器组件和绿色激光器组件。光路组件能够混合该多种颜色的激光器组件发出的光束。而且，在 一些示例中，光路组件还包括扩散片等匀光部件，所述匀光部件能够调整混合后的光束的均匀度，以提高所输出光束的匀光效果，从而输出满足成像要求的照明光束。
在另一个示例中，激光光源可以仅包括一种颜色的激光器组件(例如蓝色激光器组件)，光路组件还能够包括色轮，色轮能够受到激光器组件发出的激光的激发而产生多种其他颜色的荧光。光路组件能够混合激光器组件发出的激光光束以及色轮受激发产生的荧光光束。此外，该激光光源也能够包括匀光部件以调整混合后的光束的均匀度。
图1示出了一种激光器组件。如图1所示，该激光器组件02A包括支架01、多个激光器02和电路板03。各个激光器02电连接至电路板03，且电路板03固定在支架01上，以使多个激光器02阵列设置于同一平面内且出光方向一致。
如图2所示，每个激光器02包括发光部件021、准直结构022及基板023。发光部件021设置在基板023上，准直结构022位于发光部件021的远离基板023的一侧，准直结构022能够准直发光部件021所发出的光束。
图3示出了另一种激光器组件。如图3所示，该激光器组件02B包括支架01、多个激光器02和电路板03。各个激光器02电连接至电路板03，且电路板03固定在支架01上，以使多个激光器02阵列设置于同一平面内且出光方向一致。
其中，如图3所示，每个激光器02包括基板023、设置于该基板023上的发光部件021、及设置于该基板023上的反射件024。其中，发光部件021的所有面中面积较大的一面贴装在具有较强导热散热能力的基板023上，这样可以更好的对发光部件021进行散热。
发光部件021沿着平行于基板023的方向发出光束，反射件024位于发光部件021的光路上，通过反射件024的反射面0241可以对发光部件021发出的光束进行反射，使该发光部件021发出的光束能够向发光部件021远离基板023的一侧出射。此外，在激光器组件02B中，发光部件021发出的光束在经由反射件024反射后，还可以通过准直结构022对该光束进行准直。
如图4所示，发光部件021沿光束的快轴方向(也即图4中的方向X)和慢轴方向(也即图4中的方向Y，方向Y与方向X垂直)发出 的光均为发散光，而且沿快轴方向的发散角α(通常为30°～70°)较大，沿慢轴方向的发散角β(通常为5°～10°)较小。例如，当发光部件021为红光发光部件时，其所发出的红光光束沿快轴方向的发散角α大于或等于68.2°，而沿慢轴方向的发散角β仅有8°左右。
需要说明的是，上述发光部件021所发出光束的截面垂直于该光束的光轴。示例性的，该截面呈椭圆形，该椭圆形的长轴与短轴的交点与该光束的光轴相交，上述快轴方向X为平行于该椭圆形的长轴的方向，上述慢轴方向Y为平行于该椭圆形的短轴的方向。
在单个激光器02中，发光部件021发出的光束在射入准直结构022时沿快轴方向X的宽度较大，沿慢轴方向Y的宽度较小，相应地经准直结构022准直后的光束沿快轴方向X的宽度也较大，沿慢轴方向Y的宽度也较小。因此，在单个激光器02输出的光束的截面沿快轴方向X的宽度较大，沿慢轴方向Y的宽度较小的情况下，整个激光器组件的出光均匀度较差。而且由于单个激光器02输出的光束的截面最大宽度较大，因此包括多个激光器02的激光器组件02A和02B的出射光束的截面最大宽度也相应增大，导致位于激光器组件光路上的光路组件中的至少部分光学元件(例如合光镜等合光部件和扩散片等匀光部件)的尺寸需要设计得更大，才能实现此截面最大宽度较大的光束的传输，这将不利于后续光路组件以及容纳该光路组件的主壳体的体积小型化设计。
参见图5和图6，本公开一些实施例提供了一种激光器组件1，该激光器组件1包括支架11和至少一个激光器12，支架11上设有至少一个安装槽11A，至少一个激光器12一一对应地安装于至少一个安装槽11A内。在一些实施例中，为了提供足够亮度的光束，激光器组件1包括多个激光器12，支架11上设有多个安装槽11A。每个激光器12一一对应的安装在支架11上的多个安装槽11A内。
每个激光器12均包括发光部件121和调光部件122，发光部件121被配置为发出光束，调光部件122设置于发光部件121的光路上，调光部件122被配置为改变光束沿该光束的快轴方向和慢轴方向中的至少一者的发散角度。这样设计，可以通过调光部件122减小每个激光器12所发出光束的截面的最大宽度，该截面垂直于所述光束的光轴。进而，可以减小整个激光器组件1出射光束的截面最大宽度，使位于激光器组件1光路上的光路组件中的至少部分光学元件(例如合光镜等合光部件和 扩散片等匀光部件)的尺寸可以在保证激光器组件1出射光束正常传输的情况下设计的更小，从而有利于光路组件以及包含光路组件和激光器组件的激光光源实现小型化设计。
示例性的，支架11上的多个安装槽11A阵列设置于同一平面内。这样，当多个激光器12分别安装在多个安装槽11A内时，多个激光器12也将阵列设置于同一平面内，使得多个激光器12的出光方向可以一致，从而使激光器组件1中的多个激光器12发出的光束可以汇聚成一整条出射光束。在一些可能的设计中，如图5所示，支架11上设置有八个安装槽11A，每个安装槽11A内安装有一个激光器12。
在一些实施例中，如图6所示，激光器组件1还包括固定于支架11上的电路板13，各个激光器12的发光部件121电连接至电路板13，以通过电路板13实现控制各个激光器12的发光部件121发出光束。
发光部件121的结构形式有多种。例如，发光部件121为单独设置的发光芯片；或者，发光部件121为由发光芯片和反射棱镜封装形成的发光器件；或者，发光部件121为由发光芯片和反射棱镜组成的组件。
发光部件121所发出光束的颜色有多种。例如，发光部件121为红光发光部件，蓝光发光部件，或者绿光发光部件。在一些示例中，发光部件121为红光发光部件，红光发光部件发出的红光光束沿快轴方向的发散角较大，能够达到68.2°以上，通过调光部件122可以大幅减小红光发光部件所发出红光光束沿快轴方向的发散角度，从而达到减小输出光束的截面最大宽度的目的，该截面垂直于所述光束的光轴。
在一些实施例中，如图6至图8所示，调光部件122包括调光透镜122A，调光透镜122A的入光面f 1被配置为透射发光部件121所发出的光束。
示例性的，调光透镜122A的入光面f 1被配置为：减小光束沿快轴方向X的发散角度，以减小光束在快轴方向X上的宽度；并且，减小光束沿慢轴方向Y的发散角度，以减小光束在慢轴方向Y上的宽度。这样，可以减小激光器12输出光束在各个方向上的截面宽度，进而减小整个激光器组件1出射光束在各个方向上的截面宽度，使位于激光器组件1光路上的光路组件中的至少部分光学元件(例如合光镜等合光部件和扩散片等匀光部件)的尺寸可以在保证激光器组件1出射光束正常传输的情况下设计的更小，从而有利于光路组件以及包含光路组件和激光器组件 的激光光源实现小型化设计。在一些示例中，调光透镜122A的入光面f 1能够仅被配置为减小光束沿快轴方向X的发散角度，以减小光束在快轴方向X上的宽度。在一些示例中，调光透镜122A的入光面f 1能够仅被配置为减小光束沿慢轴方向Y的发散角度，以减小光束在慢轴方向Y上的宽度。
示例性的，参见图7和图8，调光透镜122A的入光面f 1被配置为减小光束沿快轴方向X的发散角度，以减小光束在快轴方向X上的宽度；并且，增大光束沿慢轴方向Y的发散角度，以增大光束在慢轴方向Y上的宽度。这样使得激光器12的输出光束的截面趋近于圆形，该输出光束的截面形状更加均匀，从而有助于提高激光器组件1的出光均匀度，使得激光器组件1在与光路组件中扩散片等匀光部件配合使用时，可以更好地匀化光路。在一些示例中，调光透镜122A的入光面f 1能够仅被配置为增大光束沿慢轴方向Y的发散角度，以增大光束在慢轴方向Y上的宽度。
示例性的，如图7和图8所示，调光透镜122A设置于发光部件121的光路上；调光透镜122A的靠近发光部件121的表面为入光面f 1，入光面f 1被配置为透射发光部件121所发出的光束，以使光束朝向安装槽11A的开***出。这样设计，使发光部件121发出的光束能够经入光面f 1射入调光透镜122A中，然后从调光透镜122A的出光面f 2射向安装槽11A的开口，从而可以使发光部件121发出的光束从安装槽11A的开***出，即，使激光器12可以输出光束。
在一些实施例中，参见图7和图8，调光透镜122A的入光面f 1与垂直于慢轴方向Y的各个平面的交线均为直线，以减小光束沿快轴方向X的发散角度；并且，调光透镜122A的入光面f 1与垂直于快轴方向X的各个平面的交线均为凹曲线，以增大光束沿慢轴方向Y的发散角度。这样设计，使调光透镜122A可以减小光束沿快轴方向X的发散角度，以减小光束在快轴方向X上的宽度，并且使调光透镜122A可以增大光束沿慢轴方向Y的发散角度，以增大光束在慢轴方向Y上的宽度，从而能够使激光器12的输出光束的截面趋近于圆形，该输出光束的截面形状更加均匀，有助于提高激光器组件1的出光均匀度。在一些实施例中，能够仅使调光透镜122A的入光面f 1与垂直于慢轴方向Y的各个平面的交线均为直线，以减小光束沿快轴方向X的发散角度。在一些实施例中， 能够仅使调光透镜122A的入光面f 1与垂直于快轴方向X的各个平面的交线均为凹曲线，以增大光束沿慢轴方向Y的发散角度。
示例性的，如图7和图8所示，调光透镜122A的入光面f 1与垂直于慢轴方向Y的各个平面的交线均为直线，且每条交线均垂直于发光部件121所发出光束的光轴。这样设计，除光轴位置处的光线外，发光部件121所发出光束中沿快轴方向X扩散的光线在到达调光透镜122A的入光面f 1时均不是垂直射入，因此，通过调光透镜122A可以产生折射。根据折射定律公式n 1×sinθ 1＝n 2×sinθ 2，其中，n 1为发光部件121与调光透镜122A之间间隙内物质的折射率，θ 1为发光部件121所发出光束中沿快轴方向X扩散的光线在射入调光透镜122A时的入射角，n 2为调光透镜122A的材料折射率，θ 2为发光部件121所发出光束中沿快轴方向X扩散的光线在射入调光透镜122A后的折射角。在一个示例中，发光部件121与调光透镜122A之间物质为空气，因此n 1＝1，n 2可以大于1，因此n 2大于n 1，所以理论上，θ 2小于θ 1，调光透镜122A能够减小发光部件121所发出光束中沿快轴方向X的光的发散角度。
而且，在调光透镜122A的入光面f 1与垂直于慢轴方向Y的各个平面的交线均为直线的情况下，还可以减小调光透镜122A的入光面f 1的设计难度，从而降低结构复杂度，达到容易制作调光透镜122A的目的。此外，便于确定调光透镜122A的入光面f 1与发光部件121之间的相对位置，减小激光器12的装配难度。
根据上述折射定律公式，如图8所示，n 2越大，则θ 2越小，发光部件121所发出光束沿快轴方向X的发散角度的减小程度越大，经调光透镜122A输出的光束沿快轴方向X的宽度越小。但是n 2越大，也会导致调光透镜122A的成本增加，发光部件121所发出光束在经过调光透镜122A后的衰减程度增大，因此，在一些示例中，调光透镜122A的材料折射率n 2为1.5～1.9，这样可以同时兼顾调光透镜122A的缩光效果、调光透镜122A的成本以及调光透镜122A对发光部件121所发出光束的衰减作用。在一些实施例中，n 2可以是1.5至1.9之间的任意数值，例如但不限于1.5、1.6、1.7、1.8、1.9、1.55、1.65、1.75、1.85等。
在本公开一些实施例中，调光透镜122A的入光面f 1与垂直于慢轴方向Y的各个平面的交线均为凸曲线，根据穿过凸透镜的光线会聚的原理，可以减小光束沿快轴方向X的发散角度。
在此基础上，示例性的，如图7和图8所示，调光透镜122A的入光面f 1与垂直于快轴方向X的各个平面的交线均为凹曲线。这样，使调光透镜122A的入光面f 1在减小发光部件121发出的光束沿快轴方向X的发散角度的同时，还可以增大发光部件121发出的光束沿慢轴方向Y的发散角度。需要说明的是，沿该凹曲线的延伸方向，该凹曲线的曲率可以保持不变(即该凹曲线为凹圆弧线)，也可以连续改变(例如该凹曲线的曲率依次为0.5、0.8或1.2等)。在一些示例中，凹曲线的曲率值大于0且小于1。这样，凹曲线上各个位置的弯曲程度较小，有利于降低加工难度。
在一些示例中，如图7所示，在沿发光部件121发出的光束的光轴方向上，调光透镜122A与发光部件121之间的距离d大于0mm且小于或等于1.5mm，例如d为0.5mm或0.8mm或1.5mm。这样，调光透镜122A与发光部件121之间的间隙较小，有利于实现激光器组件的结构紧凑化设计。示例性的，在沿发光部件121所发出光束的光轴方向上，调光透镜122A与发光部件121之间的距离d为0.56mm，这样，调光透镜122A与发光部件121之间的间隙适中，既有利于激光器组件的结构紧凑化设计，又能够防止因调光透镜122A与发光部件121之间的间隙过小，而增大调光透镜122A的入光面f 1的设计难度。
在一些实施例中，如图7和图8所示，每个激光器12还包括：光准直透镜123，光准直透镜123设置于调光透镜122A远离发光部件121的一侧，光准直透镜123的出光面1232被配置为准直经调光透镜122A调节后的光束。这样设计，调光透镜122A可以在发光部件121所发出光束进入光准直透镜123之前，改变该光束沿快轴方向X和慢轴方向Y中的至少一个方向的发散角度。并且，经过调光透镜122A后的光束再通过光准直透镜123后基本上是平行的。
示例性的，如图7和图8所示，调光透镜122A可以减小发光部件121所发出光束沿快轴方向X的发散角度，从而减小该光束由光准直透镜123准直后沿快轴方向X的宽度。这样，单个激光器12能够通过调光透镜122A减小发光部件121所发出光束沿快轴方向X的发散角，来达到减小单个激光器所发出光束沿快轴方向的宽度的目的，从而能够减小激光器组件1的出射光束的截面最大宽度，进而使得位于激光器组件1光路上的光路组件中的至少部分光学元件的尺寸可以减小，由此能够 实现该光路组件的体积小型化设计。而且，由于激光器12的输出光束沿快轴方向X的宽度减小了，因此激光器12的输出光束的截面将更趋近于圆形，使得激光器12的输出光束的截面形状更加均匀，从而有助于提高激光器组件1的出光均匀度，使得激光器组件1在与光路组件中的扩散片等匀光部件配合使用时，匀光部件可以更好地匀化光路。
在一些实施例中，如图7和图8所示，调光透镜122A的出光面f 2与光准直透镜123的入光面1231相接触，调光透镜122A的材料与光准直透镜123的材料相同；或者，调光透镜122A与光准直透镜123为一体式结构。这样，只需合理设计调光透镜122A的入光面f 1，例如设计该入光面f 1与垂直于慢轴方向Y的各个平面的交线均为直线，即可达到减小发光部件121所发出光束沿快轴方向X的发散角的目的；合理设计光准直透镜123的出光面1232，例如设计该出光面1232为非球面，使该光准直透镜123为非球面透镜，即可达到准直发光部件121所发出光束的目的，因此，可以降低调光透镜122A和光准直透镜123的设计难度，减小设计和加工成本。
当调光透镜122A与光准直透镜123为一体式结构时，可以减少激光器组件中的零部件数量，降低装配难度。
当调光透镜122A的出光面f 2与光准直透镜123的入光面1231相接触，且调光透镜122A的材料与光准直透镜123的材料相同时，调光透镜122A的出光面f 2与光准直透镜123的入光面1231相适配。例如，当调光透镜122A的出光面f 2为平面时，光准直透镜123的入光面1231也为平面；当调光透镜122A的出光面f 2为凸曲面时，光准直透镜123的入光面1231为曲率与调光透镜122A的出光面f 2相同的凹曲面。在一些示例中，如图7和图8所示，调光透镜122A的出光面f 2和光准直透镜123的入光面1231相接触，且均为与发光部件121所发出光束的光轴相垂直的平面，这样，调光透镜122A和光准直透镜123的结构简单，有利于减小调光透镜122A、光准直透镜123与发光部件121三者之间的定位难度。在一些示例中，光准直透镜123的入光面1231设置有定位凹槽，调光透镜122A的出光面f 2所在的一侧嵌入到该定位凹槽内。
每个激光器12包括的发光部件121、调光透镜122A及光准直透镜123可以固定在支架11上。支架11的结构有多种，支架11能够支撑多个激光器12，并保证每个激光器12的发光部件121、调光透镜122A 与光准直透镜123三者之间的相对位置关系即可，此处不做限定。例如，支架11的结构以及支架11与激光器12之间连接方式包括但不限于以下三种示例：
示例一，如图5和图6所示，支架11为块状结构，支架11上对应每个激光器12的位置设有安装槽11A，发光部件121固定于相应的安装槽11A的底壁上，调光透镜122A与光准直透镜123固定于相应的安装槽11A的侧壁上。此支架11结构简单，能够将激光器12容纳于其内部，从而提高了对激光器12的保护效果。
示例性的，调光透镜122A直接固定于安装槽11A的侧壁上；或者，如图6所示，调光透镜122A固定于光准直透镜123上，并通过光准直透镜123固定于安装槽11A的侧壁上。在一些可能的设计中，光准直透镜123通过粘接或卡接等方式固定于安装槽11A的侧壁上。在另一些可能的设计中，如图6所示，安装槽11A的侧壁上设有台阶面a，光准直透镜123的入光面承靠于台阶面a，安装槽11A内套设有锡环124，该锡环124位于光准直透镜123的光路上，加热锡环124可以使锡环124熔化并与支架11固定，由此能够将光准直透镜123夹持于台阶面a与锡环124之间。
示例二，如图9和图10所示，支架11包括支撑板111、多个底板112和多个筒状壳体113，多个底板112固定于支撑板111上，多个激光器12的发光部件121一一对应固定于多个底板112上，多个筒状壳体113一一对应罩设于多个发光部件121外，且每个筒状壳体113的轴向与该筒状壳体113对应的发光部件121的出光方向平行，多个激光器12的调光透镜122A及光准直透镜123一一对应固定于多个筒状壳体113内。这样设计，可以使支架11用料较少，质量较轻。
示例三，如图11和图12所示，激光器组件1包括支架11和多个激光器12，支架11为板状结构，支架11上设有凹槽11B。多个激光器12的发光部件121设置于凹槽11B的底壁上，每个激光器12的调光透镜122A固定于光准直透镜123上，多个激光器12的光准直透镜123通过一体成型工艺形成一体式结构，该一体式结构盖设于凹槽11B的开口处，且该一体式结构与支架11固定。这样设计，有利于缩小激光器组件中任意两个相邻的激光器12之间的间距，实现激光器组件的体积小型化设计。
在另一些实施例中，如图13和图14所示，调光部件122包括反射件122B，反射件122B的入光面f 3被配置为反射发光部件121所发出的光束。
示例性的，如图13和图14所示，每个激光器12还包括基板120。发光部件121、反射件122B均设置于基板120上，发光部件121的出光方向平行于基板120，反射件122B设置于发光部件121的光路上，即反射件122B位于发光部件121的出光路径上。反射件122B的靠近发光部件121的表面为入光面f 3，入光面f 3被配置为反射发光部件121所发出的光束，以使光束朝向背离基板120的方向射出。并且所述入光面f 3被配置为改变所述光束沿该光束的快轴方向和慢轴方向中的至少一者的发散角度。
这样设计，可以通过反射件122B减小每个激光器12所发出光束的截面的最大宽度，该截面垂直于所述光束的光轴。进而，可以减小整个激光器组件1出射光束的截面最大宽度，使位于激光器组件1光路上的光路组件中的至少部分光学元件(例如合光镜等合光部件和扩散片等匀光部件)的尺寸可以在保证激光器组件1出射光束正常传输的情况下设计的更小，从而有利于光路组件以及包含光路组件和激光器组件的激光光源实现小型化设计。此外，通过合理地设置图13所示激光器12中的反射件122B，还可以使该反射件122B具有准直光线的功能，从而省略对准直透镜的使用，这将在后文中详细描述。
作为一些可能的设计，如图14和图15所示，反射件122B的入光面f 3为凹曲面，且入光面f 3与垂直于快轴方向X和慢轴方向Y中的一个方向的各个平面的交线均为凹曲线。这样设计，使得反射件122B的入光面f 3在向背离基板120的方向反射发光部件121发出的光束的同时，能够减小发光部件121所发出光束沿快轴方向X或慢轴方向Y中的另一个方向的发散角度。例如，当入光面f 3与垂直于快轴方向X的各个平面的交线均为凹曲线时，能够减小发光部件121所发出光束沿慢轴方向Y的发散角度。当入光面f 3与垂直于慢轴方向Y的各个平面的交线均为凹曲线时，能够减小发光部件121所发出光束沿快轴方向X的发散角度。因此，在将具有该反射件122B的激光器12应用于诸如激光电视、激光投影机等激光投影设备时，可以减小位于激光器组件光路上的光路组件的设计尺寸，有利于激光投影设备实现小型化设计。
在此基础上，在一些可能的设计中，如图14和图15所示，反射件122B的入光面f 3与垂直于快轴方向X和慢轴方向Y的另一个方向的各个平面的交线均为凹曲线。这样，入光面f 3可以同时减小发光部件121发出的光束沿慢轴方向Y和快轴方向X发散角度，此时，在将具有该反射件122B的激光器12应用于诸如激光电视、激光投影机等激光投影设备时，可以使位于激光器组件光路上的光路组件的尺寸设计的更小，将更加有利于激光投影设备实现小型化设计。
反射件122B的入光面f 3的形状有多种，例如，以下示出的两个示例：
示例一，如图14和图15所示，反射件122B的入光面f 3为凹曲面，且该入光面f 3与垂直于快轴方向X的各个平面的交线均为凹曲线。这样，该入光面f 3在向背离基板120的方向反射发光部件121发出的光束的同时，能够收缩沿慢轴方向Y发散的光线，从而减小发光部件121所发出光束沿该慢轴方向Y的发散角度。
如图14所示，反射件122B的入光面f 3可以将发光部件121所发出光束沿慢轴方向Y的发散角度由β(通常为5°～10°)收缩至β 1，例如β 1为0°或1°或2°或3°或4°或5°等。可以理解，此处不对收缩后的发散角度β 1进行限定。
上述凹曲线为凹弧线或下凹的抛物线等，其能够使反射件122B的入光面f 3实现对沿慢轴方向Y发散的光线进行收缩，从而减小发光部件121所发出光束沿该慢轴方向Y的发散角度。对于上述凹曲线的弯曲形状，此处不做限定。
在此基础上，反射件122B的入光面f 3与垂直于慢轴方向Y的各个平面的交线可以为直线或曲线或凹曲线。
当反射件122B的入光面f 3与垂直于慢轴方向Y的各个平面的交线均为直线时，如图14和图15所示，反射件122B的入光面f 3为平整的柱面，反射件122B具有结构规整，加工方便的优点。
当反射件122B的入光面f 3与垂直于慢轴方向Y的各个平面的交线均为凹曲线时，如图16和17所示，入光面f 3在收缩发光部件121沿慢轴方向Y发散的光线的同时，也能够收缩发光部件121沿快轴方向X发散的光线，即入光面f 3可以同时减小发光部件121发出的光束沿慢轴方向Y和快轴方向X发散角度，因此，在将具有该反射件122B的激光 器12应用于诸如激光电视、激光投影机等激光投影设备时，可以减小位于激光器组件光路上的光路组件的设计尺寸，有利于激光投影设备实现小型化设计。
参见图16，反射件122B的入光面f 3可以将发光部件121所发出光束沿快轴方向X发光的发散角由α(通常为30°～70°)收缩至α 1。例如，α 1为0°或1°或2°或3°或4°或5°或10°等。可以理解，此处不对收缩后的发散角度α 1进行限定。
示例二，如图18和图19所示，反射件122B的入光面f 3为凹曲面，且该入光面f 3与垂直于慢轴方向Y的各个平面的交线均为凹曲线。这样，该反射面31在向背离基板120的方向反射发光部件121发出的光束的同时，能够收缩沿快轴方向X发出的光，以减小发光部件121沿该快轴方向X发出的光的发散角度。
如图18所示，反射件122B的入光面f 3将发光部件2沿快轴方向X发光的发散角由α(通常为30°～70°)收缩至α 1，例如α 1为0°或1°或2°或3°或4°或5°或10°等。可以理解，此处不对收缩后的发散角度α 1进行限定。
上述凹曲线为凹弧线或下凹的抛物线等，其能够使反射件122B的入光面f 3实现对沿快轴方向X发散的光线进行收缩，从而减小发光部件121所发出光束沿该快轴方向X的发散角度。对于上述凹曲线的弯曲形状，此处不做限定。
在此基础上，反射件122B的入光面f 3与垂直于快轴方向X的各个平面的交线可以为直线或曲线或凹曲线等。
当反射件122B的入光面f 3与垂直于快轴方向X的各个平面的交线均为直线时，如图18和图19所示，反射件122B的入光面f 3为平整的柱面，反射件122B具有结构规整，加工方便的优点。
当反射件122B的入光面f 3与垂直于快轴方向X的各个平面的交线均为凹曲线时，如图20和21所示，入光面f 3在收缩发光部件121沿快轴方向X发散的光线的同时，也能够收缩发光部件121沿慢轴方向Y发散的光线，即入光面f 3可以同时减小发光部件121发出的光束沿快轴方向X和慢轴方向Y发散角度，因此，在将具有该反射件122B的激光器12应用于诸如激光电视、激光投影机等激光投影设备时，可以减小位于激光器组件光路上的光路组件的设计尺寸，有利于激光投影设备实现 小型化设计。
参见图20，反射件122B的入光面f 3可以将发光部件121所发出光束沿慢轴方向Y发光的发散角由β(通常为5°～10°)收缩至β 1。例如，β 1为0°或1°或2°或3°或4°或5°等。可以理解，此处不对收缩后的发散角度β 1进行限定。
发光部件121所发出光束的慢轴方向Y平行于基板120(与基板120的夹角为0°)，或者，垂直于基板120(与基板120的夹角为90°)，或者，与基板120呈角度区间为(0°，90°)的夹角倾斜设置。相应的，发光部件121所发出光束的快轴方向X与慢轴方向Y互相垂直。因此，发光部件121所发出光束的快轴方向X可以平行于基板120(与基板120的夹角为0°)，或者，垂直于基板120(与基板120的夹角为90°)，或者，与基板120呈角度区间为(0°，90°)的夹角倾斜设置。此处，角度区间(0°，90°)可以指0°和90°之间的区间，所述夹角可以是该区间内的任意数值，例如，5°、10°、15°、20°、30°、45°、60°、75°、80°或85°。
如图14至图21所示，发光部件121所发出光束的慢轴方向Y平行于基板120，发光部件121所发出光束的快轴方向X垂直于基板120。此时，由于发光部件121的出光口1211在快轴方向的最大宽度减小，这样在发光部件121所发出光束中的光线全部照射到反射件122B上的情况下，可以减小发光部件121凸出基板120的高度，有利于降低激光器12在其出光方向上的高度。而且发光部件121的最大发热面与基板120相贴，能够有效散去发光部件121发光时产生的热量。
在另一个示例中，也可以设置发光部件121所发出光束的慢轴方向Y垂直于基板120，发光部件121所发出光束的快轴方向X平行于基板120。这样，能够可以大幅减小发光部件121凸出基板120的高度，有利于降低激光器12在其出光方向上的高度。
在一些实施例中，如图14至图17、图20和图21所示，光束的快轴方向X垂直于基板120，光束的慢轴方向Y平行于基板120；反射件122B的入光面f 3与垂直于快轴方向X的各个平面的交线均为凹弧线，反射件122B的入光面f 3在凹弧线上各个点的切平面与快轴方向X之间的夹角均相等以使入光面f 3形成非球面，发光部件121的出光口1211位于各个凹弧线对应的圆心的连线l上以实现心对心的设置。这样，发 光部件121沿慢轴方向Y发出的光束经入光面f 3反射后的出光方向均相同，能够将发光部件121沿慢轴方向Y发出的发散光线变为平行光线，从而实现准直发光部件121沿慢轴方向Y发出的光线的目的。
其中，示例性的，参见图14，各个凹弧线的半径r 1均为2mm～5mm。例如，各个凹弧线的半径r 1可以为2mm或3mm或5mm等，在此不做具体限定。这样，反射件122B与发光部件121之间的间距适中，能够兼顾激光器12的结构紧凑性和反射件122B的加工难度。
在一些实施例中，如图18所示，光束的快轴方向X垂直于基板120，光束的慢轴方向Y平行于基板120；反射件122B的入光面f 3与垂直于慢轴方向Y的任一平面的交线均为凹弧线，反射件122B的入光面f 3在凹弧线上各个点的切平面与慢轴方向Y之间的夹角均相等以使入光面f 3形成非球面，发光部件121的出光口1211位于各个凹弧线对应的圆心的连线l 1上以实现心对心的设置。这样，发光部件121沿快轴方向X发出的光束经入光面f 3反射后的出光方向均相同，能够将发光部件121沿快轴方向X发出的发散光线变为平行光线，从而实现准直发光部件121沿快轴方向X发出的光线的目的。
其中，示例性的，参见图18，各个凹弧线的半径r 2均为2mm～5mm。例如，各个凹弧线的半径r 2可以为2mm或3mm或5mm等，在此不做具体限定。这样，反射件122B与发光部件121之间的间距适中，能够兼顾激光器12的结构紧凑性和反射件122B的加工难度。
在此基础上，示例性的，如图16和图20所示，将发光部件121的出光口1211设置于连线l和连线l 1的交点处，这样，使反射件122B的入光面f 3能够同时反射并准直发光部件121沿快轴方向X和慢轴方向Y发出的光。从而使激光器12不需要再设置单独的准直结构，即可准直发光部件121沿快轴方向X和慢轴方向Y的发散光线，进而能够减小激光投影设备的结构复杂度，降低激光投影设备的成本。
其中，需要说明的是，反射件122B的入光面f 3能够准直发光部件121沿快轴方向X发出的光，并非必须将发光部件121沿快轴方向X扩散的光线的发散角收缩至0°，而是当入光面f 3将发光部件121沿快轴方向X发出的光的发散角收缩至[0°，5°]区间范围内的任意角度值时，均可认为入光面f 3准直了发光部件121沿快轴方向X发出的光。同理，反射件122B的入光面f 3能够准直发光部件沿慢轴方向Y发出的光，并 非必须将发光部件121沿慢轴方向Y扩散的光线的发散角收缩至0°，而是当入光面f 3将发光部件121沿慢轴方向Y扩散的光线的发散角收缩至[0°，5°]区间范围内的任意角度值时，均可认为入光面f 3准直了发光部件121沿慢轴方向Y扩散的光线发出的光。此处，[0°，5°]区间范围可以指0°和5°之间的区间，包括0°和5°。所述发散角可以是该区间内的任意数值，例如，0°、1°、2°、3°、4°和5°。
示例性的，反射件122B为棱镜或者反射镜片。
发光部件121安装于基板120的方式有多种。示例性的，发光部件121直接安装在基板120上；或者，如图14至图21所示，发光部件121通过热沉126等结构间接安装在基板120上，即，热沉126安装在基板120上，发光部件121安装在热沉126上。其中，热沉具有较高的热导率，可以起到散热的作用，例如可以是金属块(铜块)等结构。
当发光部件121直接与基板120连接时，连接方式有多种，例如，发光部件121可以通过螺纹连接、卡接、胶粘、焊接等方式与基板120连接。在一些示例中，发光部件121通过导热胶粘接于基板120上，导热胶的导热性能较好，能够将发光部件121工作时产生的热量有效传递至基板120，并进一步由基板120扩散至外界环境中。在一些示例中，发光部件121焊接于基板120上，焊接方式连接更牢固，且焊接材料通常为金属材料，金属材料的导热性能较优，能够将发光部件121工作时产生的热量有效传递至基板120，并进一步由基板120扩散至外界环境中。
同理的，反射件122B可以直接与基板120连接，也可以通过垫板等结构间接与基板120连接，在此不做具体限定。且当反射件122B直接与基板120连接时，连接方式有多种，例如，反射件122B可以通过螺纹连接、卡接、胶粘等方式与基板120连接，在此不做具体限定。
基板120起到散热作用，基板120的材料可以为铜、铝、铁等等，在此不做具体限定。在一些实施例中，基板120的材料为铜或铜的合金，铜或铜的合金的散热效果较好，能够快速散去发光部件121工作时产生的热量。
在一些实施例中，如图22和图23所示，每个激光器12包括至少一个发光部件121，至少一个发光部件121沿反射件122B的周向依次排列；反射件122B包括至少一个入光面f 3，至少一个入光面f 3与至少一个 发光部件121一一对应。这样，可以通过设置多个发光部件121来提高激光器12的亮度。
示例性的，发光部件121的数量可以为6个或8个或10个等，在此不做具体限定，具体可以根据激光器12的亮度需求进行设置。此外，对发光部件121的排列位置不做具体限定，例如，如图22所示，多个发光部件121围绕反射件122B的相对两侧边排列。又例如，如图23所示，多个发光部件121围绕反射件122B的四侧边排列。
发光部件121可以为红光发光部件，蓝光发光部件，或者绿光发光部件中的任一个。在一些实施例中，对应反射件122B的每个入光面设置一种颜色的发光部件。例如，如图22所示，反射件122B的左侧设置蓝光发光部件，右侧设置红光发光部件。又例如，如图23所示，反射件122B的上侧和左侧设置蓝光发光部件，下侧设置红光发光部件，右侧设置绿光发光部件。
示例性的，相邻的两个发光部件121之间具有间隙。例如，相邻两个发光部件121之间的间距为1mm～10mm。这样，可以避免相邻两个发光部件121发出的光束之间产生干涉。
在一些实施例中，如图24所示，调光部件122包括调光透镜122A和反射件122B。调光透镜122A设置于基板120上，且位于发光部件121的光路上，调光透镜122A的靠近发光部件121的表面为入光面，所述入光面被配置透射发光部件121所发出的光束以使所述光束朝向反射件122B射出，并且所述入光面被配置为改变所述光束沿该光束的快轴方向和慢轴方向中的至少一者的发散角度。反射件122B设置于基板120上，且位于调光透镜122A远离发光部件121的一侧，反射件122B被配置为反射调光透镜122A透射的光束以使所述光束朝向背离基板120的方向射出。此外，该激光器组件1还包括准直透镜123，以对经反射件122B反射的光束进行准直。
在一个示例中，图13所示的激光器组件中的反射件122B可看做是图24所示激光器组件中的反射件122B和调光透镜122A的一体化结构。图24所示的激光器12节省了光学元件的使用，其结构更紧凑，更利于实现小型化设计。
本公开一些实施例提供了一种激光光源2，如图25所示，该激光光源2包括上述任一个激光器组件1、主壳体21和光路组件22。主壳体 21位于激光器组件1的光路上，且主壳体21与激光器组件1固定连接，光路组件22设置于主壳体21内，主壳体21上设有入光口211，入光口211位于激光器组件1的出光路径上。
由于该激光光源2包括上述任一个激光器组件1，因此本公开一些实施例提供的激光光源2与上述任一个激光器组件1能够解决相同或类似的技术问题，并达到相同的或类似的预期效果。
本公开一些实施例提供了一种激光投影设备3，如图26所示，包括依次连接的上述激光光源2、光机31和投影镜头32，其中，光机31用于对激光光源2发出的照明光束进行调制，以生成影像光束，并将影像光束投射至投影镜头32，投影镜头32用于对影像光束进行成像。
由于该激光投影设备3包括上述激光光源2，因此本公开一些实施例提供的激光投影设备3与上述实施例所述的激光光源2能够解决相同的技术问题，并达到相同的预期效果。
在一些实施例中，如图27所示，激光投影设备3还包括投影屏幕33，投影屏幕33设置于投影镜头32的出光路径上，经投影镜头32成像后的投影光束在投影屏幕33上形成投影画面。
在本说明书的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (20)

  1. 一种激光器组件，包括：
    支架，所述支架包括至少一个安装槽，至少一个安装槽中的每个包括开口；
    至少一个激光器，所述至少一个激光器一一对应地安装于所述至少一个安装槽内，所述至少一个激光器中的每个包括：
    发光部件，其被配置为发出光束；
    调光部件，其设置于所述发光部件的光路上，所述调光部件包括入光面，
    其中，所述调光部件的入光面设置为靠近所述发光部件，所述入光面被配置为使所述发光部件所发出的光束朝向所述安装槽的开***出，并且所述入光面被配置为改变所述光束沿该光束的快轴方向和慢轴方向中的至少一者的发散角度。
  2. 根据权利要求1所述的激光器组件，其中，所述调光部件包括调光透镜，所述调光透镜的入光面被配置为透射所述发光部件所发出的光束；并且，
    所述调光透镜的入光面被配置为执行以下中的至少一者：
    减小所述光束沿所述快轴方向的发散角度，以减小所述光束在所述快轴方向上的宽度；或者，
    增大所述光束沿所述慢轴方向的发散角度，以增大所述光束在所述慢轴方向上的宽度。
  3. 根据权利要求2所述的激光器组件，其中，
    所述调光透镜的入光面与垂直于所述慢轴方向的各个平面的交线均为直线或凸曲线，以减小所述光束沿所述快轴方向的发散角度；和/或，
    所述调光透镜的入光面与垂直于所述快轴方向的各个平面的交线均为凹曲线，以增大所述光束沿所述慢轴方向的发散角度。
  4. 根据权利要求2所述的激光器组件，其中，所述调光透镜的折射率为1.5～1.9。
  5. 根据权利要求2所述的激光器组件，其中，每个所述激光器还包括：
    光准直透镜，所述光准直透镜设置于所述调光透镜远离所述发光 部件的一侧；并且
    所述光准直透镜包括出光面，其中所述光准直透镜的出光面被配置为准直经所述调光透镜调节后的光束。
  6. 根据权利要求5所述的激光器组件，其中，
    所述调光透镜的出光面与所述光准直透镜的入光面相接触，所述调光透镜的材料与所述光准直透镜的材料相同；或者，
    所述调光透镜与所述光准直透镜为一体式结构。
  7. 根据权利要求1所述的激光器组件，所述激光器组件还包括：
    电路板，所述电路板与所述支架相连，
    其中，各个所述激光器中的发光部件电连接至所述电路板。
  8. 根据权利要求1所述的激光器组件，其中，
    所述调光部件包括反射件，所述反射件包括入光面，所述反射件的入光面被配置为反射所述发光部件所发出的光束；并且，
    所述反射件的入光面被配置为执行以下中的至少一者：
    减小所述光束沿所述快轴方向的发散角度，以减小所述光束在所述快轴方向上的宽度；或者，
    减小所述光束沿所述慢轴方向的发散角度，以减小所述光束在所述慢轴方向上的宽度。
  9. 根据权利要求8所述的激光器组件，其中，所述反射件的入光面为凹曲面，且所述入光面与垂直于所述快轴方向和所述慢轴方向中的至少一个方向的各个平面的交线均为凹曲线。
  10. 根据权利要求8所述的激光器组件，其中，所述反射件的入光面为凹曲面；
    所述反射件的入光面与垂直于所述快轴方向的各个平面的交线均为凹曲线；并且，
    所述反射件的入光面与垂直于所述慢轴方向的各个平面的交线均为凹曲线。
  11. 根据权利要求8所述的激光器组件，其中，
    所述至少一个激光器中的每个还包括基板，所述发光部件包括出光口；
    所述光束的慢轴方向平行于所述基板，所述光束的快轴方向垂直于所述基板；
    所述反射件的入光面与垂直于所述快轴方向的各个平面的交线均为凹弧线，所述反射件的入光面在所述凹弧线上各个点的切平面与所述快轴方向之间的夹角均相等，所述发光部件的出光口位于各个所述凹弧线对应的圆心的连线上，以使所述反射件的入光面能够反射并准直所述发光部件沿慢轴方向发出的光。
  12. 根据权利要求11所述的激光器组件，其中，各个所述凹弧线的半径r 1均为2mm～5mm。
  13. 根据权利要求8所述的激光器组件，其中，
    所述至少一个激光器中的每个还包括基板，所述发光部件包括出光口；
    所述光束的慢轴方向平行于所述基板，所述光束的快轴方向垂直于所述基板；
    所述反射件的入光面与垂直于所述慢轴方向的各个平面的交线均为凹弧线，所述反射件的入光面在所述凹弧线上各个点的切平面与所述慢轴方向之间的夹角均相等，所述发光部件的出光口位于各个所述凹弧线对应的圆心的连线上，以使所述反射件的入光面能够反射并准直所述发光部件沿快轴方向发出的光。
  14. 根据权利要求8所述的激光器组件，其中，所述反射件包括棱镜和反射镜片中的至少一个。
  15. 根据权利要求8所述的激光器组件，其中，每个所述激光器包括至少一个发光部件，所述至少一个发光部件沿所述反射件的周围依次排列；
    所述反射件包括至少一个入光面，所述至少一个入光面与所述至少一个发光部件一一对应。
  16. 根据权利要求15所述的激光器组件，其中，相邻的两个发光部件之间具有间隙。
  17. 根据权利要求1所述的激光器组件，其中，所述调光部件包括反射件和调光透镜；
    所述调光透镜设置于所述发光部件的光路上，所述调光透镜包括入光面，所述调光透镜的入光面设置为靠近所述发光部件，所述入光面被配置透射所述发光部件所发出的光束以使所述光束朝向反射件射出；
    所述反射件设置在所述调光透镜远离所述发光部件的一侧，所述反射件被配置为反射所述调光透镜透射的光束以使所述光束朝向所述安装槽的开***出。
  18. 根据权利要求1所述的激光器组件，其中，每个激光器还包括基板，所述发光部件设置于所述基板上；
    所述发光部件包括以下至少一个：
    发光芯片；或者，
    由发光芯片和反射棱镜封装形成的发光器件；或者，
    包括发光芯片和反射棱镜的组件。
  19. 一种激光光源，包括：
    如权利要求1所述的激光器组件；
    主壳体，设置在所述激光器组件的光路上，且与所述激光器组件固定连接，所述主壳体包括入光口，所述入光口设置在所述激光器组件的出光路径上；
    光路组件，设置于所述主壳体内。
  20. 一种激光投影设备，包括：
    如权利要求19所述的激光光源；
    光机，设置于所述激光光源发出的光束的光路上，被配置为对所述激光光源发出的光束进行调制，以生成影像光束，并发射出所述影像光束；
    投影镜头，设置于所述激光光源发出的光束的光路上，所述投影镜头被配置为接收所述影像光束，并基于所述影像光束进行成像。
PCT/CN2019/106784 2018-12-24 2019-09-19 激光器组件、激光光源和激光投影设备 WO2020134220A1 (zh)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11223816B2 (en) * 2018-09-26 2022-01-11 Himax Technologies Limited Multi-image projector and electronic device having multi-image projector
DE102021102799A1 (de) 2021-02-05 2022-08-11 OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung Laserdiodenanordnung, beleuchtungseinheit und laserprojektionsvorrichtung
WO2022232440A1 (en) * 2021-04-28 2022-11-03 Google Llc Emitter system assembly and method of forming
DE102022109732A1 (de) * 2022-04-22 2023-10-26 LIMO GmbH Optikvorrichtung für einen Halbleiterlaser sowie Laservorrichtung mit einer derartigen Optikvorrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6219187B1 (en) * 1997-12-15 2001-04-17 University Of Utah Laser beam coupler shaper and collimator
US6975465B1 (en) * 2002-04-03 2005-12-13 University Of Central Florida Research Foundation, Inc. Method and apparatus for use of beam control prisms with diode laser arrays
US20080084905A1 (en) * 2006-03-03 2008-04-10 Falk Doerfel High power diode laser having multiple emitters and method for its production
US20090129420A1 (en) * 2007-11-16 2009-05-21 Boris Regaard High power laser diode array comprising at least one high power diode laser and laser light source comprising the same
JP2010045274A (ja) * 2008-08-18 2010-02-25 Seiko Epson Corp レーザ光源装置、プロジェクタ、モニタ装置
JP2014060452A (ja) * 2013-12-18 2014-04-03 Seiko Epson Corp 固体光源装置、プロジェクタ、モニタ装置
JP2015099388A (ja) * 2015-02-02 2015-05-28 セイコーエプソン株式会社 固体光源装置、プロジェクタ、モニタ装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11015781B2 (en) * 2013-10-17 2021-05-25 Sony Corporation Light source apparatus, light source unit, and image display apparatus
JP6366288B2 (ja) * 2014-02-07 2018-08-01 三菱電機株式会社 光源装置およびプロジェクタ装置
JP6202346B2 (ja) * 2015-03-20 2017-09-27 カシオ計算機株式会社 放熱装置、光源装置及び投影装置
EP3331109B1 (en) * 2015-07-28 2021-03-03 Mitsubishi Electric Corporation Laser light source device
TWI576609B (zh) * 2015-08-07 2017-04-01 高準精密工業股份有限公司 發光裝置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6219187B1 (en) * 1997-12-15 2001-04-17 University Of Utah Laser beam coupler shaper and collimator
US6975465B1 (en) * 2002-04-03 2005-12-13 University Of Central Florida Research Foundation, Inc. Method and apparatus for use of beam control prisms with diode laser arrays
US20080084905A1 (en) * 2006-03-03 2008-04-10 Falk Doerfel High power diode laser having multiple emitters and method for its production
US20090129420A1 (en) * 2007-11-16 2009-05-21 Boris Regaard High power laser diode array comprising at least one high power diode laser and laser light source comprising the same
JP2010045274A (ja) * 2008-08-18 2010-02-25 Seiko Epson Corp レーザ光源装置、プロジェクタ、モニタ装置
JP2014060452A (ja) * 2013-12-18 2014-04-03 Seiko Epson Corp 固体光源装置、プロジェクタ、モニタ装置
JP2015099388A (ja) * 2015-02-02 2015-05-28 セイコーエプソン株式会社 固体光源装置、プロジェクタ、モニタ装置

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