CN216647071U - Laser projection light source assembly and laser projection equipment - Google Patents
Laser projection light source assembly and laser projection equipment Download PDFInfo
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- CN216647071U CN216647071U CN202123453141.3U CN202123453141U CN216647071U CN 216647071 U CN216647071 U CN 216647071U CN 202123453141 U CN202123453141 U CN 202123453141U CN 216647071 U CN216647071 U CN 216647071U
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Abstract
The utility model relates to the technical field of lasers, and provides a laser projection light source component and laser projection equipment, wherein the laser projection light source component comprises: ruddiness module, green glow module, blue light module, close bundle module and coupling lens, wherein, should close and restraint the module and include: first dichroic mirror adjustment assembly, blue-green adjustment assembly and second dichroic mirror adjustment assembly. According to the utility model, the spatial positions of the beam combining modules are rearranged, the transmission direction and the distance of the blue-green light beams can be adjusted through the first dichroic mirror adjusting assembly and the blue-green adjusting assembly, and the transmission direction of the mixed light beams can be adjusted through the second dichroic mirror adjusting assembly, so that the space is fully utilized, the compactness among the modules is increased, the volume is reduced, the beam combining modules are used for adjusting the light emitting paths of the modules of the white light source, the space utilization rate is improved, the volume is reduced integrally, and the miniaturization of the white light source is facilitated.
Description
Technical Field
The utility model relates to the technical field of lasers, in particular to a laser projection light source component and laser projection equipment.
Background
The laser projection display technology (LDT), also known as laser projection technology or laser display technology, is a display technology using red, green, and blue (RGB) tricolor lasers as light sources, and can reproduce the rich and bright colors of the objective world most truly, providing more shocking expressive force. From the colorimetry perspective, the color gamut coverage rate of laser display can reach more than 90% of the color space which can be identified by human eyes, is more than twice of the traditional display color gamut coverage rate, thoroughly breaks through the defects of the color gamut space of the previous three-generation display technology, realizes the most perfect color restoration of human beings throughout the history, and enables people to see the truest and most gorgeous world through the display terminal.
At present, in the laser projection process, in order to obtain white light, a scheme generally adopted in the prior art is to place a small number of red light laser diodes, green light laser diodes and blue light laser diodes on the side wall, and a spatial coupling mode is adopted, so that generated light beams are emitted after being expanded and combined, and the light beams are transmitted in the same level in the whole process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a laser projection light source assembly and laser projection equipment, and aims to solve the technical problems that in the prior art, the light path transmission of laser projection needs to occupy a large space, and the miniaturization of a light source is not facilitated.
In order to achieve the purpose, the utility model adopts the technical scheme that:
in a first aspect, the present invention provides a laser projection light source assembly and a laser projection apparatus, where the laser projection light source assembly includes a red light module, a green light module, a blue light module, a beam combining module, and a coupling lens, the red light module is configured to provide a red light beam, the green light module is configured to provide a green light beam, and the blue light module is configured to provide a blue light beam, where the beam combining module includes:
the first dichroic mirror adjusting component is arranged on the light emitting paths of the green light module and the blue light module and is used for enabling the green light beams and the blue light beams to form blue-green light beams;
the blue-green adjusting component is arranged on the light emitting path of the first dichroic mirror adjusting component and is used for adjusting the propagation direction of the blue-green light beams and the distance between the blue-green light beams;
and the second dichroic mirror adjusting assembly is arranged on the light emitting paths of the blue-green adjusting assembly and the red light module, and is used for enabling the blue-green light beam and the red light beam to form a mixed light beam.
In one embodiment, the first dichroic mirror adjusting assembly includes a first dichroic mirror ladder array formed by a plurality of first dichroic mirrors, and the first dichroic mirror ladder array is disposed on the light emitting paths of the green light module and the blue light module, and is configured to enable the green light beam and the blue light beam to form a blue-green light beam.
In one embodiment, the blue-green adjusting assembly comprises a stepped blue-green reflector array formed by a plurality of blue-green reflectors, and the stepped blue-green reflector array is disposed on the light emitting path of the first dichroic mirror adjusting assembly and is used for adjusting the propagation direction of the blue-green light beam and the distance between the blue-green light beams.
In one embodiment, the blue-green adjustment assembly further comprises a first adjustment portion connected to the blue-green mirror for adjusting an angle of the blue-green mirror.
In one embodiment, the blue-green adjusting assembly further includes a first polarizer disposed on the light exit path of the blue-green reflector.
In one embodiment, the second dichroic mirror adjusting assembly includes a second dichroic mirror stepped array formed by a plurality of second dichroic mirrors, and the second dichroic mirror stepped array is disposed on the light emitting paths of the blue-green adjusting assembly and the red light module, and is configured to enable the blue-green light beam and the red light beam to form a mixed light beam.
In one embodiment, the second dichroic mirror adjustment assembly further comprises: and the second adjusting part is connected with the second dichroic mirror and used for adjusting the angle of the second dichroic mirror.
In one embodiment, the red light module comprises a red light source component and a red light adjusting component, wherein the red light source component and the red light adjusting component are arranged along a red light path, the red light adjusting component is used for adjusting the red light propagation direction and the red light beam distance, and the red light source component comprises a red light laser array consisting of a plurality of red light lasers;
the red light adjusting component comprises a red light reflector ladder array consisting of a plurality of red light reflectors, at least one red light reflector is arranged on the light emitting path of each red light laser, and the red light reflectors are used for adjusting the propagation direction of the red light beams of the red light lasers and reducing the distance between the red light beams;
the green light module comprises a green light source component and a green light adjusting component, the green light adjusting component is arranged along a green light path and is used for adjusting the green light propagation direction and the green light beam distance, and the green light source component comprises a green laser array consisting of a plurality of green lasers;
the green light adjusting component comprises a green light reflector ladder array consisting of a plurality of green light reflectors, at least one green light reflector is arranged on the light-emitting path of each green laser, and the green light reflectors are used for adjusting the propagation direction of green light beams of the green lasers and reducing the distance between the green light beams;
the blue light module includes the blue light source subassembly that sets up along blue light path, and blue light source subassembly is used for providing blue light beam, and blue light source subassembly includes the blue light laser instrument array that a plurality of blue light laser instruments constitute.
Furthermore, the red light adjusting assembly further comprises a second polarizing film stepped array formed by a plurality of second polarizing films, and the second polarizing film stepped array is arranged on the light emitting path of the red light reflector stepped array.
In one embodiment, the laser projection light source assembly further includes a light homogenizing sheet, and the light homogenizing sheet is disposed on the light exit path of the beam combining module.
In a second aspect, the present invention provides a laser projection apparatus, wherein the laser projection apparatus includes the above laser projection light source assembly, and therefore, the laser projection apparatus can have all the structural features and advantages of the above laser projection apparatus.
The laser projection light source assembly and the laser projection equipment provided by the utility model have the beneficial effects that at least:
according to the utility model, the spatial positions of the beam combining modules are rearranged, the transmission direction and the distance of the blue-green light beams can be adjusted through the first dichroic mirror adjusting assembly and the blue-green adjusting assembly, and the transmission direction of the mixed light beams can be adjusted through the second dichroic mirror adjusting assembly, so that the space is fully utilized, the compactness among the modules is increased, the volume is reduced, the beam combining modules are used for adjusting the light emitting paths of the modules of the white light source, the space utilization rate is improved, the volume is reduced integrally, and the miniaturization of the white light source is facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic perspective view of a laser projection light source assembly according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a laser projection light source module according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a beam combining module according to an embodiment of the present invention;
fig. 4 is a schematic view of an optical path structure of the beam combining module according to the embodiment of the present invention;
fig. 5 is a schematic diagram of an optical path structure of a first dichroic mirror adjusting component according to an embodiment of the present invention;
fig. 6 is a schematic view of an optical path structure of a red light reflector according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1, the present embodiment provides a laser projection light source assembly and a laser projection apparatus, the laser projection light source assembly includes: the red light module 10, the green light module 20, the blue light module 30, close bundle module 40 and coupling lens 50, the red light module 10 is used for providing the red light beam, the green light module 20 is used for providing the green light beam, the blue light module 30 is used for providing the blue light beam, wherein, should close bundle module 40 and include: first dichroic mirror 411 adjusting component 41, blue-green adjusting component 42, and second dichroic mirror 431 adjusting component 43, where first dichroic mirror 411 adjusting component 41 is disposed on the light emitting paths of green module 20 and blue module 30, and is used for forming a blue-green light beam from the green light beam and the blue light beam. The blue-green adjusting element 42 is disposed on the light emitting path of the first dichroic mirror 411 adjusting element 41, and is used for adjusting the propagation direction of the blue-green light beam and the distance between the blue-green light beams. The second dichroic mirror 431 adjusting assembly 43 is disposed on the light emitting path of the blue-green adjusting assembly 42 and the red light module 10, and the second dichroic mirror 431 adjusting assembly 43 is used for forming a mixed light beam by the blue-green light beam and the red light beam. The coupling lens 50 is disposed on the light exit path of the beam combining module 40, and the coupling lens 50 is used for coupling and focusing the mixed light beam to form white light.
In this embodiment, the first dichroic mirror 411 adjusts the component 41 to make the green light beam and the blue light beam form a blue-green light beam, the blue-green adjusting component 42 can adjust the propagation direction and the distance between the blue-green light beam and the blue-green light beam, the second dichroic mirror 431 adjusts the component 43 to make the blue-green light beam and the red light beam form a mixed light beam, in this embodiment, the propagation direction and the distance between the blue-green light beam can be adjusted by the first dichroic mirror 411 adjusting component 41 and the blue-green adjusting component 42, the propagation direction of the mixed light beam can be adjusted by the second dichroic mirror 431 adjusting component 43, so that the space is fully utilized, the compactness among the modules is increased, the volume is reduced, the light emitting path of each module of the white light source can be adjusted by the beam combining module 40, the space utilization rate is improved, and the volume is reduced as a whole, is beneficial to the miniaturization of the white light source.
The laser projection light source assembly provided by the embodiment has the beneficial effects that:
in this embodiment, the spatial position of the light combining module 40 is rearranged, the propagation direction and the distance of the blue-green light beam can be adjusted by the first dichroic mirror 411 adjusting component 41 and the blue-green adjusting component 42, and the propagation direction of the mixed light beam can be adjusted by the second dichroic mirror 431 adjusting component 43, so that the space is fully utilized, the compactness among the modules is increased, the volume is reduced, the light emitting path of each module of the white light source can be adjusted by the light combining module 40, the space utilization rate is improved, the volume is reduced as a whole, and the miniaturization of the white light source is facilitated.
Preferably, referring to fig. 1, the laser projection light source assembly further includes a light homogenizing sheet 60, and the light homogenizing sheet 60 is disposed on the light exit path of the beam combining module 40. For example, the laser projection light source assembly includes a red light module 10, a green light module 20, a blue light module 30, a beam combining module 40, a light homogenizing sheet 60 and a coupling lens 50, wherein the light homogenizing sheet 60 is disposed on a light emitting path of the beam combining module 40. Because of the characteristics of the laser, the light beam generated by the laser has a highly coherent characteristic, so that the obtained light beam is not uniform, and the light homogenizing sheet 60 can enable the coupling lens 50 to obtain a uniform mixed light beam.
Referring to fig. 2, fig. 3 and fig. 6, further, the red light module 10 includes a red light source assembly 11 disposed along a red light path and a red light adjusting assembly, the red light adjusting assembly is used for adjusting a red light propagation direction and a red light beam distance, and the red light source assembly 11 includes a red laser 111 array formed by a plurality of red lasers 111. The red light beams generated by the plurality of red lasers 111 are parallel to each other. The red light adjusting assembly includes a red light reflector 121 ladder array 12 composed of a plurality of red light reflectors 121, at least one red light reflector 121 is disposed on the light emitting path of each red laser 111, the red light reflector 121 is used for reflecting the red light beam of the red laser 111 to change the propagation direction of the red light beam, and the red light reflector 121 ladder array 12 also has the effect of compressing the light spots. Preferably, the red light beams reflected by the red light reflector 121 are perpendicular to the incident red light beams, and the distance between the reflected red light beams can be reduced and the density of the red light beams can be increased by setting the inclination angle of the red light reflector 121.
Referring to fig. 2, fig. 3 and fig. 6, further, the red light adjustment assembly may further include a second polarizer 131 ladder array 13 formed by a plurality of second polarizers 131, and the second polarizer 131 ladder array 13 is disposed on the light-emitting path of the red light reflector 121 ladder array 12, that is, the red light adjustment assembly includes a red laser 111 array formed by a plurality of red lasers 111 and a second polarizer 131 ladder array 13 formed by a plurality of second polarizers 131. The second polarizer 131 is used to change the characteristics of the red light beam, so that the messy red light beam can be changed into a parallel red light beam, and the visual objects are clearer, softer and clearer.
Referring to fig. 2, 3 and 5, the green light module 20 includes a green light source module 21 disposed along a green light path and a green light adjusting module for adjusting a green light propagation direction and a green light beam distance, the green light source module 21 includes a green laser 211 array formed by a plurality of green lasers 211, and green light beams generated by the plurality of green lasers 211 are parallel to each other. The green light adjustment assembly includes a green light reflector 221 ladder array composed of a plurality of green light reflectors 221, at least one green light reflector 221 is disposed on the light-emitting path of each green laser 211, and the green light reflector 221 is used for reflecting the green light beam of the green laser 211 to change the propagation direction of the green light beam. Preferably, the green light beam reflected by the green light reflector 221 is perpendicular to the incident green light beam, and the distance between the reflected green light beams can be reduced and the density of the green light beams can be increased by setting the inclination angle of the green light reflector 221.
Referring to fig. 2, fig. 3 and fig. 5, the blue light module 30 includes a blue light source assembly 31 disposed along a blue light path, the blue light source assembly 31 is used for providing a blue light beam, the blue light source assembly 31 includes a blue laser 311 array formed by a plurality of blue lasers 311, and the blue light beams generated by the plurality of blue lasers 311 are parallel to each other.
Preferably, referring to fig. 1 and 5, the first dichroic mirror 411 adjusting component 41 includes a first dichroic mirror 411 ladder array formed by a plurality of first dichroic mirrors 411, the first dichroic mirror 411 ladder array is disposed on the light-emitting paths of the green light adjusting component of the green light module 20 and the blue light module 30, and the first dichroic mirror 411 ladder array is used for transmitting the green light beam and reflecting the blue light beam, so that the green light beam and the blue light beam form a blue-green light beam, wherein the blue-green light beam refers to a blue-green mixed light beam formed by mixing the blue light beam and the green light beam.
Preferably, referring to fig. 4, the blue-green adjusting element 42 includes a step array of blue-green reflectors 421 formed by a plurality of blue-green reflectors 421, the step array of blue-green reflectors 421 is disposed on the light emitting path of the first dichroic mirror 411 adjusting element 41, and the step array of blue-green reflectors 421 is used for reflecting the blue-green light beam emitted by the first dichroic mirror 411 adjusting element 41 to change the propagation direction of the blue-green light beam. Preferably, the blue-green light beam reflected by the blue-green reflector 421 is perpendicular to the incident blue-green light beam, and the distance between the reflected blue-green light beams can be reduced and the density of the blue-green light beam can be increased by setting the inclination angle of the blue-green reflector 421.
Referring to fig. 3, the blue-green reflector 421 further includes a first adjusting portion 422, the first adjusting portion 422 is connected to the blue-green reflector 421 for adjusting the angle of the blue-green reflector 421, and since there may be a deviation in the direction of the blue-green light beam generated by the stepped array of the first dichroic mirror 411, the angle of the blue-green reflector 421 needs to be adjusted for adjusting the direction of the emitted blue-green light beam.
Referring to fig. 3, the blue-green adjustment assembly 42 may further include a first polarizer 44, and the first polarizer 44 is disposed on the light emitting path of the blue-green reflector 421. The first polarizer 44 is used to change the blue-green beam characteristics, and can change the messy blue-green beam into a parallel blue-green beam, so that the object can be seen more clearly, softly and clearly.
Referring to fig. 1 and 2, the second dichroic mirror 431 adjusting assembly 43 includes a second dichroic mirror 431 step array formed by a plurality of second dichroic mirrors 431, the second dichroic mirror 431 step array is disposed on the light-emitting path of the blue-green adjusting assembly 42 and the red light module 10, and the second dichroic mirror 431 step array is used for transmitting the blue-green light beam and reflecting the red light beam, so that the blue-green light beam and the red light beam form a mixed light beam.
Preferably, referring to fig. 3, the second dichroic mirror 431 adjusting assembly 43 further includes: a second adjusting unit 432 is connected to the second dichroic mirror 431, and the angle of the second dichroic mirror 431 is used to adjust the direction of the emitted mixed light beam by adjusting the angle of the second dichroic mirror 431 because the direction of the red light beam emitted from the red light reflector 121 may be different.
In this embodiment, the blue light beam generated by the blue laser 311 is reflected by the first dichroic mirror 411, the green light beam generated by the green laser 211 is reflected by the green light mirror 221 and then reflected and transmitted by the first dichroic mirror 411, and the positions of the blue light beam and the green light beam can be exchanged.
That is, the blue light beam generated by the blue laser is reflected by the blue light reflector and then transmitted by the first dichroic mirror, and the green light beam generated by the green laser is reflected by the green light reflector. For example, the blue light source component comprises a blue light laser array consisting of a plurality of blue light lasers and a blue light adjusting component, the blue light adjusting component comprises a blue light reflector ladder array consisting of a plurality of blue light reflectors, at least one blue light reflector is arranged on the light emitting path of each blue light laser, the blue light reflector is used for reflecting the green light beam of the blue light lasers, and green light source subassembly includes the green laser array that a plurality of green laser constitute, and first dichroic mirror adjusting part includes the first dichroic mirror ladder array that a plurality of first dichroic mirrors constitute, and first dichroic mirror ladder array is located on the light-emitting path of the blue light adjusting part of green light module and blue light module, and first dichroic mirror ladder array is used for transmitting the blue light beam, reflects the green light beam to make green light beam and blue light beam form blue-green light beam.
The laser projection equipment comprises the laser projection light source assembly, so that the laser projection equipment can have all structural characteristics and beneficial effects of the laser projection equipment.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a laser projection light source subassembly, includes ruddiness module, green glow module, blue light module, closes bundle module and coupling lens, ruddiness module is used for providing ruddiness light beam, green glow module is used for providing green light beam, blue light module is used for providing blue light beam, its characterized in that, it includes to close bundle module:
the first dichroic mirror adjusting component is arranged on light emitting paths of the green light module and the blue light module and used for enabling the green light beam and the blue light beam to form a blue-green light beam;
the blue-green adjusting component is arranged on the light emitting path of the first dichroic mirror adjusting component and is used for adjusting the propagation direction of the blue-green light beams and the distance between the blue-green light beams;
and the second dichroic mirror adjusting component is arranged on the light emitting paths of the blue-green adjusting component and the red light module, and is used for enabling the blue-green light beam and the red light beam to form a mixed light beam.
2. The laser projection light source assembly of claim 1, wherein the first dichroic mirror adjustment assembly comprises a first stepped array of dichroic mirrors formed by a plurality of first dichroic mirrors, the first stepped array of dichroic mirrors being disposed in the light exit path of the green module and the blue module, for causing the green light beam and the blue light beam to form a blue-green light beam.
3. The laser projection light source assembly of claim 1, wherein the blue-green adjusting assembly comprises a blue-green reflector ladder array formed by a plurality of blue-green reflectors, and the blue-green reflector ladder array is disposed on the light-emitting path of the first dichroic mirror adjusting assembly and is used for adjusting the propagation direction of the blue-green light beam and the distance between the blue-green light beams.
4. The laser projection light source assembly of claim 3, wherein the blue-green adjustment assembly further comprises a first adjustment portion connected to the blue-green mirror for adjusting an angle of the blue-green mirror.
5. The laser projection light source assembly of claim 4, wherein the blue-green adjusting assembly further comprises a first polarizer disposed in an optical path of the blue-green reflector.
6. The laser projection light source assembly of claim 1, wherein the second dichroic mirror adjustment assembly comprises a second dichroic mirror ladder array of a plurality of second dichroic mirrors, the second dichroic mirror ladder array being disposed in the light exit path of the blue-green adjustment assembly and the red light module for forming the blue-green light beam and the red light beam into a mixed light beam.
7. The laser projection light source assembly of claim 6, wherein the second dichroic mirror adjustment assembly further comprises: and the second adjusting part is connected with the second dichroic mirror and is used for adjusting the angle of the second dichroic mirror.
8. The laser projection light source assembly of claim 1, wherein the red light module comprises a red light source assembly and a red light adjusting assembly arranged along a red light path, the red light adjusting assembly is configured to adjust a red light propagation direction and a red light beam interval, and the red light source assembly comprises a red laser array including a plurality of red lasers;
the red light adjusting component comprises a red light reflector ladder array consisting of a plurality of red light reflectors, at least one red light reflector is arranged on the light emitting path of each red laser, and the red light reflectors are used for adjusting the transmission direction of red light beams of the red lasers and reducing the distance between the red light beams;
the green light module comprises a green light source component and a green light adjusting component, the green light adjusting component is arranged along a green light path and is used for adjusting the green light propagation direction and the green light beam distance, and the green light source component comprises a green laser array consisting of a plurality of green lasers;
the green light adjusting component comprises a green light reflector ladder array consisting of a plurality of green light reflectors, at least one green light reflector is arranged on the light emitting path of each green laser, and the green light reflectors are used for adjusting the propagation direction of green light beams of the green lasers and reducing the distance between the green light beams;
the blue light module includes the blue light source subassembly that sets up along blue light path, the blue light source subassembly is used for providing blue light beam, the blue light laser array that the blue light source subassembly includes a plurality of blue light laser instrument and constitutes.
9. The laser projection light source assembly of claim 1, wherein the laser projection light source assembly further comprises a light homogenizing sheet disposed on the light exit path of the beam combining module.
10. A laser projection device, characterized in that the laser projection device comprises a laser projection light source assembly according to any one of claims 1-9.
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| CN202123453141.3U CN216647071U (en) | 2021-12-30 | 2021-12-30 | Laser projection light source assembly and laser projection equipment |
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| CN202123453141.3U CN216647071U (en) | 2021-12-30 | 2021-12-30 | Laser projection light source assembly and laser projection equipment |
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