CN119126473B - Projection laser module - Google Patents
Projection laser module Download PDFInfo
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- CN119126473B CN119126473B CN202411616359.1A CN202411616359A CN119126473B CN 119126473 B CN119126473 B CN 119126473B CN 202411616359 A CN202411616359 A CN 202411616359A CN 119126473 B CN119126473 B CN 119126473B
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 83
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 21
- 238000011282 treatment Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000011284 combination treatment Methods 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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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
- G03B21/2013—Plural light sources
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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
- G03B21/16—Cooling; Preventing overheating
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to the technical field of projection, in particular to a projection laser module, which comprises a beam receiving mirror, wherein two mounting plates are symmetrically arranged on the left side of the beam receiving mirror, two connecting plates are symmetrically arranged on the right ends of the two mounting plates, a first light source module, a second light source module and a third light source module are respectively arranged between the two mounting plates, the first light source module, the second light source module and the third light source module are arranged in a triangular structure with narrow left and wide right, a first heat dissipation piece is arranged at the front end of the first light source module, a second heat dissipation piece is arranged at the rear end of the first light source module, three V-shaped refraction mirrors are equidistantly arranged between the two mounting plates, and the design realizes the light combination projection of the first light source module, the second light source module and the third light source module which are in a triangular structure, is favorable for miniaturized design of projection equipment, the energy density non-uniformity probability of projection laser is effectively reduced, the brightness of the projection laser is effectively ensured, and the projection effect is effectively ensured.
Description
Technical Field
The invention relates to a projection laser module, and belongs to the technical field of projection.
Background
The laser projection is to realize bright and clear projection operation by utilizing laser beams, most of the existing laser projection light sources adopt three groups of projection laser modules, the three groups of projection laser modules respectively emit red laser, blue laser and green laser, the three groups of projection light source modules are generally arranged in parallel in a rectangular manner, and the three-color laser is received and combined by utilizing a beam receiving mirror to form laser for projection;
In order to ensure that the beam receiving mirror can effectively receive the laser beams with different colors emitted by the three groups of projection laser modules, the diameter of the required beam receiving mirror is larger than the length of a structure formed by arranging the three groups of projection laser modules in parallel, so that the projection laser modules formed by the three groups of projection laser modules and the beam receiving mirror occupy a large amount of space in the laser projection equipment, and the miniaturization design of the projection equipment is not facilitated;
And three groups of projection laser modules are arranged side by side and can generate a large amount of heat when working, but in order to reduce the space occupied by the projection laser modules, the space between two adjacent projection laser modules is smaller, and a dense phenomenon can easily occur between the two adjacent projection laser modules, so that the corresponding projection laser modules and lasers positioned at the edge positions are blocked, the uneven probability of energy density of three-color lasers received by a beam receiving mirror is larger, and the brightness and the projection effect of the projection laser can be influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a projection laser module.
The technical scheme includes that the projection laser module comprises a beam receiving mirror, wherein two mounting plates are symmetrically arranged on the left side of the beam receiving mirror, two connecting plates are symmetrically arranged at the right ends of the two mounting plates, the other ends of the four connecting plates are connected with the beam receiving mirror, a first light source module, a second light source module and a third light source module are respectively arranged between the two mounting plates, the first light source module, the second light source module and the third light source module are arranged in a triangular structure with narrow left and wide right, the second light source module is positioned on the right front side of the first light source module, the third light source module is positioned on the right rear side of the first light source module, and the third light source module is positioned right behind the second light source module;
The front end of the first light source module is provided with a first radiating piece, the other end of the first radiating piece is connected with the left end of the second light source module, the rear end of the first light source module is provided with a second radiating piece, the other end of the second radiating piece is connected with the left end of the third light source module, the first radiating piece and the second radiating piece are arranged between two mounting plates, three V-shaped refractors are equidistantly arranged between the two mounting plates, the V-shaped refractors are arranged in a left-wide and right-narrow mode, the three V-shaped refractors are arranged between the second light source module and the third light source module, the V-shaped refractors are positioned on the left side of the light beam receiving mirror, the left end of the rear arm part of the three V-shaped refractors is connected with the second radiating piece, and the left end of the front arm part of the three V-shaped refractors is connected with the first radiating piece.
Further, the first heat dissipation piece comprises a second heat dissipation plate, the second heat dissipation plate is arranged at the front end of the first light source module, the second heat dissipation plate is obliquely arranged, the other end of the second heat dissipation plate is connected with the left end of the second light source module, the left end face of the second heat dissipation plate is recessed rightwards to form a plurality of first heat dissipation holes, and the first heat dissipation holes penetrate through the second heat dissipation plate;
The left end equidistance of second heating panel sets up a plurality of second fin, and is three the forearm portion left end of V-arrangement refracting mirror is all connected with the second heating panel right-hand member, two set up first cooling fan between the mounting panel, and first cooling fan is located first light source module rear end, a plurality of second fin are installed on the positive right side of first cooling fan.
Further, the second heat dissipation piece comprises a first heat dissipation plate, the first heat dissipation plate is installed on the rear end of the first light source module, the first heat dissipation plate is obliquely arranged, the first heat dissipation plate is located right behind the second heat dissipation plate, the first heat dissipation plate and the second heat dissipation plate are arranged in a triangular structure with narrow left and wide right, the other end of the first heat dissipation plate is connected with the left end of the third light source module, the left end face of the first heat dissipation plate is recessed right to form a plurality of second heat dissipation holes, and the second heat dissipation holes penetrate through the first heat dissipation plate;
the left end equidistance of first heating panel sets up a plurality of first fin, three the rear arm portion left end of V-arrangement refracting mirror all is connected with first heating panel right-hand member, two install the second cooling fan between the mounting panel, and the second cooling fan is located first light source module front end, the positive right side of second cooling fan sets up a plurality of first fin.
Further, the right end of the first light source module is provided with a first frame, the first frame is located on the right left side of the V-shaped refractor, two large convex lenses are installed in the first frame and are located on the right side of the first light source module, the two large convex lenses are connected with each other towards the inner end, and the two large convex lenses are arranged in a V-shaped structure with left, right and left widths.
Further, the second light source module rear end sets up the second frame, and the second frame is located V-arrangement refracting mirror in the place ahead, second frame internally mounted first well convex lens, both ends all set up first little convex lens about the first well convex lens, two first little convex lens are all installed in the second frame, and two first little convex lenses are the narrow V-arrangement structure arrangement in front of the width back.
Further, the third frame is installed to third light source module front end, and the third frame is located the V-arrangement refracting mirror directly behind, the inside second well convex lens that sets up of third frame, the second little convex lens of second well convex lens upper and lower both ends all installation, two little convex lens of second all set up in the third frame, and two little convex lenses of second are the front and back width V-arrangement structural arrangement.
Further, the first light source module is constituted by a blue laser diode, the second light source module is constituted by a green laser diode, and the third light source module is constituted by a red laser diode.
The invention has the beneficial effects that:
1. The first light source module, the second light source module and the third light source module which are in the triangular structure are utilized to generate three-color laser, the three-color laser is uniformly concentrated on the light beam receiving mirror through the three V-shaped refracting mirrors, the first light source module, the second light source module and the third light source module which are in the triangular structure are used for carrying out light combination projection, the occupied space of the light source structure which is required by the light source module is effectively reduced, the miniaturized design of the projection equipment is facilitated, the three-color laser is parallel to each other, so that the light spot positions formed on the light beam receiving mirror are mutually filled, the probability of energy density unevenness of projection laser is effectively reduced, the brightness of the projection laser is effectively ensured, and the projection effect is effectively ensured.
2. The heat on the first radiating plate can be radiated through the first radiating fan, the first radiating plate, the plurality of second radiating holes and the plurality of first radiating fins, the second radiating fan, the second radiating plate, the plurality of first radiating holes and the plurality of second radiating fins can be utilized to radiate the heat on the second radiating plate, the heat radiation treatment is carried out on the position between the first light source module and the third light source module and the position between the first light source module and the second light source module, the heat collection probability is effectively reduced between the first light source module and the third light source module and between the first light source module and the second light source module, the brightness of projection laser is effectively guaranteed, and the projection effect is effectively guaranteed.
3. The first convex lens and the two first small convex lenses are used for converging green laser emitted by the second light source module, the second convex lens and the two second small convex lenses are used for converging red laser emitted by the third light source module, and the two large convex lenses are used for converging blue laser emitted by the first light source module, so that the lasers emitted by the first light source module, the second light source module and the third light source module are effectively irradiated on the beam receiving mirror, interference probability generated among different colors of lasers is effectively reduced, waste probability of the lasers emitted by the first light source module, the second light source module and the third light source module is effectively reduced, brightness of projection lasers is effectively guaranteed, and projection effects are effectively guaranteed.
4. The heat on the beam receiving mirror and the annular heat conduction hollow plate is transmitted through the plurality of first heat conduction rods and the plurality of second heat conduction rods, and simultaneously the heat on the first heat conduction rods and the second heat conduction rods is radiated through the first heat radiation fans, the second heat radiation fans, the first heat radiation fins and the second heat radiation fins, so that timely heat radiation treatment on the beam receiving mirror is realized, the softening probability of glue at the installation position on the heat insulation ring is effectively reduced, the interference probability of operation of combining light projection on three-color laser caused by flowing on the beam receiving mirror is effectively reduced, the brightness of projection laser is effectively ensured, and the projection effect is effectively ensured.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a projection laser module according to the present invention;
FIG. 2 is a cross-sectional view of a projection laser module according to the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is an assembly diagram of a first light source module, a second light source module, a V-shaped refractor, and a third light source module in a projection laser module according to the present invention;
FIG. 5 is a perspective view of a second light source module in a projection laser module according to the present invention;
FIG. 6 is a cross-sectional view of a second light source module in a projection laser module according to the present invention;
FIG. 7 is a schematic diagram of a projection laser module according to another embodiment of the present invention;
Fig. 8 is a cross-sectional view of fig. 7.
In the figure, 1, a beam receiving mirror, 2, a mounting plate, 3, a first heat radiation fan, 4, a first light source module, 5, a second heat radiation fan, 6, a second light source module, 7, a V-shaped refraction mirror, 8, a third light source module, 11, a heat insulation ring, 12, an annular heat conduction hollow plate, 13, a first heat radiation fin, 14, a second heat radiation fin, 15, a first heat conduction rod, 16, a second heat conduction rod, 21, a connecting plate, 41, a large convex lens, 42, a first frame, 43, a first heat radiation fin, 44, a first heat radiation plate, 45, a second heat radiation fin, 46, a second heat radiation plate, 61, a second frame, 62, a first small convex lens, 63, a first convex lens, 81, a third frame, 82, a second small convex lens, 83 and a second convex lens.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1-4, a projection laser module is provided, which comprises a beam receiving mirror 1, two connecting plates 21 are symmetrically arranged at the right ends of two mounting plates 2 positioned at the left side of the beam receiving mirror 1, the other ends of the four connecting plates 21 are connected with the beam receiving mirror 1, and the mounting plates 2 and the beam receiving mirror 1 are fastened and arranged through the connecting plates 21;
The first light source module 4 composed of blue laser diodes, the second light source module 6 composed of green laser diodes and the third light source module 8 composed of red laser diodes are all arranged between the two mounting plates 2, and the first light source module 4, the second light source module 6 positioned on the right front side of the first light source module 4 and the third light source module 8 positioned on the right rear side of the first light source module 4 and right behind the second light source module 6 are arranged in a triangular structure with narrow left and wide right, blue laser is emitted through the first light source module 4, green laser is emitted through the second light source module 6, and red laser is emitted through the third light source module 8;
A second heat dissipation plate 46 which is obliquely arranged and is arranged between two mounting plates 2 is arranged at the front end of the first light source module 4, the other end of the second heat dissipation plate 46 is connected with the left end of the second light source module 6, a mounting carrier is provided for parts such as a second heat dissipation plate 45 and the like through the second heat dissipation plate 46, a plurality of first heat dissipation holes penetrating through the second heat dissipation plate 46 are formed by right sinking of the left end face of the second heat dissipation plate 46, a plurality of second heat dissipation plates 45 positioned on the right side of the first heat dissipation fan 3 are equidistantly arranged at the left end of the second heat dissipation plate 46, and the plurality of second heat dissipation plates 45 are matched with the plurality of first heat dissipation holes for use, so that heat dissipation operation is realized;
A first radiating plate 44 which is obliquely arranged between two mounting plates 2, is positioned right behind a second radiating plate 46 and is arranged in a triangular structure with the second radiating plate 46 in a left-narrow right-wide manner is mounted on the rear end of the first light source module 4, the other end of the first radiating plate 44 is connected with the left end of the third light source module 8, a mounting carrier is provided for components such as a first radiating plate 43 and the like through the first radiating plate 44, a plurality of second radiating holes penetrating through the first radiating plate 44 are formed in a manner that the left end face of the first radiating plate 44 is recessed rightwards, a plurality of first radiating plates 43 positioned right side of the second radiating fan 5 are equidistantly arranged on the left end of the first radiating plate 44, and the plurality of second radiating holes are matched with the plurality of first radiating plates 43 to realize radiating operation;
A first heat radiation fan 3 positioned at the rear end of the first light source module 4 is arranged between the two mounting plates 2, heat radiation operation is carried out on the first light source module 4 and the third light source module 8 through the first heat radiation fan 3, a second heat radiation fan 5 positioned at the front end of the first light source module 4 is arranged between the two mounting plates 2, and heat radiation operation is carried out on the first light source module 4 and the second light source module 6 through the second heat radiation fan 5;
The V-shaped refractors 7 which are connected with the right end of the first heat dissipation plate 44 at the left end of the three rear arm parts and the right end of the second heat dissipation plate 46 at the left end of the front arm part and are positioned between the second light source module 6 and the third light source module 8 and are positioned at the left side of the light beam receiving mirror 1 and are arranged in a left wide and right narrow way are equidistantly arranged between the two mounting plates 2, the laser light emitted from the second light source module 6 and the third light source module 8 is refracted by the V-shaped refractor 7.
When the light source is used, the circuit of the first light source module 4, the circuit of the second light source module 6 and the circuit of the third light source module 8 are firstly connected, so that the first light source module 4 emits blue laser light, the second light source module 6 emits green laser light and the third light source module 8 emits red laser light, the green laser light emitted by the second light source module 6 irradiates on the front end surfaces of the three V-shaped refractors 7, the three V-shaped refractors 7 refract the green laser light and form first reflected light, and then the first reflected light irradiates on the light beam receiving mirror 1;
The red laser emitted by the third light source module 8 irradiates on the rear end surfaces of the three V-shaped refractors 7, the three V-shaped refractors 7 refract the red laser and form second reflected light, then the second reflected light irradiates on the light beam receiving mirror 1, and the blue laser emitted by the first light source module 4 passes through gaps among the three V-shaped refractors 7 and directly irradiates on the light beam receiving mirror 1;
The laser emitted by the first light source module 4, the second light source module 6 and the third light source module 8 is uniformly concentrated on the light beam receiving mirror 1, and the light beam receiving mirror 1 is utilized to perform light combination treatment on three beams of laser, so that projection laser is formed, and the projection laser is emitted to be used for projection imaging operation, so that the first light source module 4, the second light source module 6 and the third light source module 8 which are in a triangular structure are realized to perform light combination projection, the occupied space of a required light source structure is effectively reduced, and the miniaturized design of projection equipment is facilitated;
at the moment, the first reflected light, the second reflected light and the blue laser are mutually parallel, so that the positions of light spots formed on the light beam receiving mirror 1 are mutually filled, the probability of uneven energy density of projection laser is effectively reduced, the brightness of the projection laser is effectively ensured, and the projection effect is effectively ensured;
in the projection process, heat generated by the operation of the first light source module 4 and heat generated by the operation of the third light source module 8 are conducted to the first heat dissipation plate 44, the first heat dissipation fan 3 and the second heat dissipation fan 5 are started at the same time, the first heat dissipation fan 3 works to form first air flow behind the first light source module 4, then the first air flow, the second heat dissipation holes on the first heat dissipation plate 44 and the plurality of first heat dissipation fins 43 dissipate heat on the first heat dissipation plate 44, heat dissipation treatment is carried out on the position between the first light source module 4 and the third light source module 8, heat collection probability between the first light source module 4 and the third light source module 8 is effectively reduced, brightness of projection laser is effectively guaranteed, and projection effect is effectively guaranteed;
The heat generated by the operation of the first light source module 4 and the heat generated by the operation of the second light source module 6 are conducted to the second heat dissipation plate 46, the second heat dissipation fan 5 is operated to form second air flow in front of the first light source module 4, then the second air flow, the first heat dissipation holes in the second heat dissipation plate 46 and the plurality of second heat dissipation fins 45 dissipate heat in the second heat dissipation plate 46, heat dissipation treatment is conducted on the position between the first light source module 4 and the second light source module 6, heat collection probability generated between the first light source module 4 and the second light source module 6 is effectively reduced, brightness of projection laser is effectively guaranteed, and projection effect is effectively guaranteed.
In the second embodiment, the light source is provided by adopting the triangular component formed by the first light source module 4, the second light source module 6 and the third light source module 8, and the three V-shaped refractor 7 is utilized to refract the laser generated by the second light source module 6 and the third light source module 8, so that the three-color laser irradiates on the beam receiving mirror 1 in a mutually parallel state, but the laser generated by the second light source module 6 and the third light source module 8 irradiates in two gaps formed by the three V-shaped refractor 7, so that the interference probability of the laser with different colors in the gaps is larger, and the occurrence waste probability of the laser emitted by the first light source module 4, the second light source module 6 and the third light source module 8 is larger, and the brightness of the formed projection laser is influenced.
In order to solve the above-mentioned problems, as shown in fig. 2 to 6, a first frame 42 located right and left of the V-shaped refractor 7 is provided on the right end of the first light source module 4, an installation carrier is provided for the large convex lenses 41 through the first frame 42, two large convex lenses 41 located right and left of the first light source module 4, which are mutually connected towards the inner end and are arranged in a left-narrow right-wide V-shaped structure, are installed inside the first frame 42, the two large convex lenses 41 are matched for use, and the blue laser emitted by the first light source module 4 is converged and two first lasers in parallel state are formed;
A second frame 61 positioned right in front of the V-shaped refractor 7 is arranged at the rear end of the second light source module 6, an installation carrier is provided for components such as a first convex lens 63 and the like through the second frame 61, the first convex lens 63 is arranged inside the second frame 61, two first small convex lenses 62 which are arranged in a front-wide rear-narrow V-shaped structure and are respectively arranged at the upper end and the lower end of the first convex lens 63 are arranged inside the second frame 61, the first convex lens 63 is matched with the two first small convex lenses 62 for use, and green laser emitted by the second light source module 6 is converged to form three second laser beams in a parallel state;
The third frame 81 right behind the V-shaped refractor 7 is mounted on the front end of the third light source module 8, the third frame 81 provides mounting carriers for the second convex lens 83 and other components, the second convex lens 83 is arranged inside the third frame 81, two second small convex lenses 82 which are arranged in a front narrow and rear wide V-shaped structure and are respectively mounted on the upper end and the lower end of the second convex lens 83 are both arranged inside the third frame 81, the second convex lens 83 is matched with the two second small convex lenses 82 for use, and red laser emitted by the third light source module 8 is converged and three parallel third laser beams are formed.
When the light source device is used, the circuit of the first light source module 4, the circuit of the second light source module 6 and the circuit of the third light source module 8 are firstly connected, so that the first light source module 4 emits blue laser light, the second light source module 6 emits green laser light and the third light source module 8 emits red laser light, the green laser light emitted by the second light source module 6 irradiates on a first structure formed by a first convex lens 63 and two first small convex lenses 62, the first structure receives the green laser light emitted by the second light source module 6 and forms three second laser lights in a parallel state, then the three second laser lights irradiate on the front end surfaces of the three V-shaped refractors 7 respectively, the three V-shaped refractors 7 refract the three second laser lights respectively and form three first reflected lights, and then the three first reflected lights irradiate on the light beam receiving mirror 1;
The red laser emitted by the third light source module 8 irradiates on a second structure formed by a second convex lens 83 and two second small convex lenses 82, the second structure receives the red laser emitted by the third light source module 8 and forms three third laser beams in a parallel state, then the three third laser beams irradiate on the rear end surfaces of three V-shaped refractors 7 respectively, the three V-shaped refractors 7 refract the three third laser beams respectively and form three second reflected lights, and then the three second reflected lights irradiate on the beam receiving mirror 1;
The blue laser emitted by the first light source module 4 irradiates on a third structure formed by two large convex lenses 41, the third structure converges the blue laser emitted by the first light source module 4 and forms two first lasers in parallel, and then the two first lasers respectively pass through two gaps formed by three V-shaped refractors 7 and directly irradiate on the beam receiving mirror 1;
The beam receiving mirror 1 uniformly concentrates and combines the two first laser beams, the three second reflected light beams and the three first reflected light beams to form projection laser beams, the projection laser beams are emitted to be used for projection imaging operation, the effect that the laser beams emitted by the first light source module 4, the second light source module 6 and the third light source module 8 are effectively irradiated onto the beam receiving mirror 1 is achieved, the interference probability generated among the laser beams with different colors is effectively reduced, the waste probability of the laser beams emitted by the first light source module 4, the second light source module 6 and the third light source module 8 is effectively reduced, the brightness of the projection laser beams is effectively ensured, and the projection effect is effectively ensured.
In the third embodiment, the three-color laser beams generated by the first light source module 4, the second light source module 6 and the third light source module 8 are respectively converged by adopting the triangular structure component formed by the first light source module 4, the second light source module 6 and the third light source module 8, and the three-color laser beams generated by the second light source module 6 and the third light source module 8 are refracted by utilizing the three V-shaped refractor 7, so that the three-color laser beams are irradiated onto the light beam receiving mirror 1 in a mutually parallel state, and meanwhile, the softened glue is used for fixing the glue in the projection device, so that the softened glue with a larger softening probability is generated under the heat collecting factor, and the softened glue flows onto the light beam receiving mirror 1 to interfere with the light beam receiving mirror with a larger probability.
In order to solve the above-mentioned problems, as shown in fig. 7 and 8, an annular heat conduction hollow plate 12 is installed on the annular outer end of the beam receiving mirror 1, and the other ends of four connection plates 21 are connected to the left end of the annular heat conduction hollow plate 12, an installation carrier is provided for the heat insulation ring 11 and other parts through the annular heat conduction hollow plate 12, and the heat insulation ring 11 is provided on the annular outer end of the annular heat conduction hollow plate 12, and the annular heat conduction hollow plate 12 and the beam receiving mirror 1 are installed in the projection apparatus through the heat insulation ring 11;
The transverse parts of the first heat conducting rods 15 which extend into the annular heat conducting hollow plate 12, are L-shaped in cross section, are connected with the left end of the first heat radiating plate 44 at the other end and are positioned on the rear outer side of the third light source module 8 are equidistantly arranged on the left end of the rear part of the annular heat conducting hollow plate 12, the first heat conducting rods 15 are matched with each other to enable the annular heat conducting hollow plate 12 to be connected with the first heat radiating plate 44, the transverse parts of the second heat conducting rods 16 which extend into the annular heat conducting hollow plate 12, are L-shaped in cross section, are connected with the left end of the second heat radiating plate 46 at the other end and are positioned on the front outer side of the second light source module 6 are equidistantly arranged on the left end of the front part of the annular heat conducting hollow plate 12, and the second heat conducting rods 16 are matched with each other to enable the annular heat conducting hollow plate 12 to be connected with the second heat radiating plate 46;
The plurality of first heat dissipation fins 13 positioned on the rear outer side of the third light source module 8 are arranged at equal intervals on the outer ends of the plurality of first heat conduction rods 15, the plurality of first heat dissipation fins 13 are matched for use, the first heat conduction rods 15 are subjected to heat dissipation treatment, the plurality of second heat dissipation fins 14 positioned on the front outer side of the second light source module 6 are arranged at equal intervals on the outer ends of the plurality of second heat conduction rods 16, the plurality of second heat dissipation fins 14 are matched for use, and the second heat conduction rods 16 are subjected to heat dissipation treatment.
When the light source device is used, the circuit of the first light source module 4, the circuit of the second light source module 6 and the circuit of the third light source module 8 are firstly connected, so that the first light source module 4 emits blue laser light, the second light source module 6 emits green laser light and the third light source module 8 emits red laser light, then the green laser light emitted by the second light source module 6 is converged through a first structure formed by the first convex lens 63 and the two first small convex lenses 62 to form three parallel second laser lights, the three first reflected lights are respectively refracted by the three V-shaped refractors 7 to form three first reflected lights, and then the three first reflected lights are irradiated on the light beam receiving mirror 1;
Meanwhile, the red laser emitted by the third light source module 8 is converged and three parallel third lasers are formed through a second structure formed by the second convex lens 83 and the two second small convex lenses 82, the three third lasers are respectively refracted by the three V-shaped refractors 7 and form three second reflected lights, then the three second reflected lights are all irradiated onto the beam receiving mirror 1, meanwhile, the blue laser emitted by the first light source module 4 is converged and two parallel first lasers are formed through the third structure formed by the two large convex lenses 41, and then the two first lasers respectively pass through two gaps formed by the three V-shaped refractors 7 and are directly irradiated onto the beam receiving mirror 1;
The beam receiving mirror 1 uniformly concentrates and combines the two first laser beams, the three second reflected light beams and the three first reflected light beams to form projection laser beams, and enables the projection laser beams to be emitted for projection imaging operation, at the moment, heat generated on the beam receiving mirror 1 is transferred to the annular heat conducting hollow plate 12, and then the plurality of first heat conducting rods 15 and the plurality of second heat conducting rods 16 transfer the heat on the annular heat conducting hollow plate 12;
simultaneously, the heat on the first heat conducting rod 15 and the second heat conducting rod 16 is radiated by the first heat radiating fan 3, the second heat radiating fan 5, the first heat radiating fin 13 and the second heat radiating fin 14, so that timely heat radiation treatment on the light beam receiving mirror 1 is realized, the softening probability of glue at the installation position on the heat insulating ring 11 is effectively reduced, the interference probability of operation of light combination projection on three-color laser caused by flowing onto the light beam receiving mirror 1 is effectively reduced, the brightness of the projection laser is effectively ensured, and the projection effect is effectively ensured.
Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.
Claims (3)
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| CN119126473B true CN119126473B (en) | 2025-01-28 |
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| JP2004070018A (en) * | 2002-08-07 | 2004-03-04 | Mitsubishi Electric Corp | Conformation of illumination optical system in projector, and projector |
| JP2019086532A (en) * | 2017-11-01 | 2019-06-06 | マクセル株式会社 | Projection type video display device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9214291U1 (en) * | 1992-10-22 | 1993-01-21 | Jörns, Barbara, 8900 Augsburg | Double projection device with central light source and optimized light guidance |
| JP2001318211A (en) * | 2000-05-11 | 2001-11-16 | Nikon Corp | Color separation prism device and projection-type display device |
| KR100619043B1 (en) * | 2004-08-03 | 2006-09-01 | 삼성전자주식회사 | Illuminating unit and projection type image display apparatus employing the same |
| KR100908430B1 (en) * | 2006-11-01 | 2009-07-21 | 엘지전자 주식회사 | Projection optics using integrated structure |
| KR20080039753A (en) * | 2006-11-01 | 2008-05-07 | 삼성테크윈 주식회사 | Radiating structure for laser light source and microprojector having same |
| CN102147532B (en) * | 2011-03-26 | 2012-06-27 | 电子科技大学 | Optical engine for projector |
| CN211318969U (en) * | 2020-02-05 | 2020-08-21 | 中强光电股份有限公司 | Light source module and projection device |
| CN215494519U (en) * | 2021-06-11 | 2022-01-11 | 无锡视美乐激光显示科技有限公司 | Laser light source device and optical equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004070018A (en) * | 2002-08-07 | 2004-03-04 | Mitsubishi Electric Corp | Conformation of illumination optical system in projector, and projector |
| JP2019086532A (en) * | 2017-11-01 | 2019-06-06 | マクセル株式会社 | Projection type video display device |
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