CN210771915U - Compact laser lamp tube headlight - Google Patents
Compact laser lamp tube headlight Download PDFInfo
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- CN210771915U CN210771915U CN201922196547.4U CN201922196547U CN210771915U CN 210771915 U CN210771915 U CN 210771915U CN 201922196547 U CN201922196547 U CN 201922196547U CN 210771915 U CN210771915 U CN 210771915U
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Abstract
The utility model provides a compact laser lamp pipe headlight, first speculum and second speculum all hold the one side that the seat is close to the laser radiator with the reflector and are connected. The collimating lens is connected with one surface of the reflector bearing seat far away from the laser radiator. The optical axis of blue laser emitted by the blue laser emitter forms an angle of 45 degrees with the reflecting surface of the first reflecting mirror. The second reflector and the first reflector are positioned on the same vertical line. The reflecting surface of the second reflector forms an angle of 45 degrees with the reflecting surface of the first reflector. The blue laser emitted by the blue laser emitter reaches the reflecting surface of the second reflector after being reflected by the first reflector. The yellow ceramic fluorescent sheet is arranged between the laser radiator and the focusing lens. The blue laser reflected by the reflecting surface of the second reflecting mirror is converged on the yellow ceramic fluorescent sheet by the focusing lens. The reflector bearing seat is provided with a light through port. The white light emitted by the yellow ceramic fluorescent sheet irradiates the outside through the focusing lens, the light through port and the collimating lens.
Description
Technical Field
The utility model relates to a laser lighting field especially relates to a compact laser lamp pipe headlight.
Background
The automobile headlamp is also called as an automobile front illuminating lamp and an automobile daytime running lamp, and is used as an eye automobile headlamp of an automobile, so that the integral appearance image of the automobile is related, and the overall performance of the automobile can be better embodied. The automobile headlamp is a key component for ensuring safe driving of the automobile at night. With the continuous development of science and technology, automobile headlamps are also continuously improved, and the automobile illuminating lamps appearing in the current market are mainly divided into halogen automobile headlamp light sources, xenon automobile headlamp light sources, LED automobile headlamp light sources and laser automobile headlamp light sources. The laser automobile headlamp light source has the advantages of most of the LED automobile headlamp light sources, and is high in response speed, low in brightness attenuation degree, small in size, low in energy consumption and long in service life.
However, compared with the LED automobile headlight light source, the laser automobile headlight light source has a significant advantage in terms of volume, and the length of a single laser diode element can be 10 micrometers, which is only one hundredth of the size of a conventional LED element, which means that the size of the headlight of a conventional automobile can be greatly reduced as long as a designer wishes, which brings revolutionary changes to the design scale of each element on the front face of the automobile. However, the conventional laser headlamp is too large in size and cannot meet the illumination requirements of narrow-space occasions on the laser headlamp.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a compact laser tube headlamp aiming at the technical problem of the oversize volume of the conventional laser headlamp.
A compact laser tube headlamp comprising: the device comprises a laser radiator, a blue laser emitter, a first reflector, a second reflector, a focusing lens, a yellow ceramic fluorescent sheet, a reflector bearing seat and a collimating lens;
the blue laser emitter, the focusing lens and the yellow ceramic fluorescent sheet are all connected with the laser radiator, and the reflector bearing seat is connected with the laser radiator; the first reflector and the second reflector are both connected with one surface of the reflector bearing seat close to the laser radiator; the collimating lens is connected with one surface of the reflector bearing seat, which is far away from the laser radiator;
the optical axis of blue laser emitted by the blue laser emitter forms an angle of 45 degrees with the reflecting surface of the first reflecting mirror; the second reflector and the first reflector are positioned on the same vertical line; the reflecting surface of the second reflector and the reflecting surface of the first reflector form an angle of 45 degrees; the blue laser emitted by the blue laser emitter reaches the reflecting surface of the second reflecting mirror after being reflected by the first reflecting mirror; the yellow ceramic fluorescent sheet is arranged between the laser radiator and the focusing lens; the yellow ceramic fluorescent sheet is arranged on the optical axis of the focusing lens, and the blue laser reflected by the reflecting surface of the second reflecting mirror is converged on the yellow ceramic fluorescent sheet through the focusing lens; the reflector bearing seat is provided with a light through port; the white light emitted by the yellow ceramic fluorescent sheet irradiates the outside through the focusing lens, the light through port and the collimating lens.
In one embodiment, the compact laser tube headlamp further comprises a window glass, and the window glass is arranged between the collimating lens and the laser radiator and connected with the laser radiator.
In one embodiment, a glass clamping groove is formed in one surface, close to the collimating lens, of the laser radiator, and the window glass is inserted into the glass clamping groove and connected with the laser radiator.
In one embodiment, the light inlet surface of the window glass is provided with an antireflection film.
In one embodiment, an antireflection film is arranged on the light emergent surface of the window glass.
In one embodiment, the laser heat sink is an aluminum laser heat sink.
In one embodiment, the laser heat sink is a copper laser heat sink.
In one embodiment, the mirror holder is an aluminum mirror holder.
In one embodiment, the mirror holder is a copper mirror holder.
According to the compact laser tube headlamp, blue laser emitted by the blue laser emitter is converged on the yellow ceramic fluorescent sheet through the first reflector and the second reflector and the focusing lens, the blue laser irradiates the yellow ceramic fluorescent sheet and excites yellow light, and the yellow light emitted by the yellow ceramic fluorescent sheet and the blue laser are mixed to form white light. The white light irradiates to the outside from the collimating lens through the focusing lens and the light through port. The size of the laser lamp tube headlamp is reduced, and the illumination requirement of narrow and small space occasions on the laser lamp tube headlamp is met.
Drawings
FIG. 1 is a schematic diagram of a compact laser tube headlamp according to an embodiment;
FIG. 2 is a schematic view of the compact laser lamp of the embodiment of FIG. 1;
FIG. 3 is a schematic view of the compact laser lamp of the embodiment of FIG. 2 from another view angle;
fig. 4 is a schematic diagram of a light path of the compact laser tube headlamp in one embodiment.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 to 4, the present invention provides a compact laser lamp 10, the compact laser lamp 10 includes: the laser radiator 100, the blue laser emitter 200, the first reflector 300, the second reflector 400, the focusing lens 500, the yellow ceramic fluorescent sheet 600, the mirror bearing seat 700 and the collimating lens 800. The blue laser emitter 200, the focusing lens 500 and the yellow ceramic fluorescent sheet 600 are all connected with the laser radiator 100, and the mirror bearing seat 700 is connected with the laser radiator 100. The first reflecting mirror 300 and the second reflecting mirror 400 are both connected to a surface of the mirror holder 700 near the laser radiator 100. The collimating lens 800 is connected to a surface of the mirror holder 700 away from the laser radiator 100. The optical axis of the blue laser light emitted from the blue laser emitter 200 makes an angle of 45 degrees with the reflective surface of the first reflector 300. Second mirror 400 is located on the same vertical line as first mirror 300. The reflective surface of second mirror 400 is at a 45 degree angle to the reflective surface of first mirror 300. The blue laser emitted from the blue laser emitter 200 is reflected by the first reflecting mirror 300 and reaches the reflecting surface of the second reflecting mirror 400. The yellow ceramic fluorescent sheet 600 is disposed between the laser radiator 100 and the focusing lens 500. The yellow ceramic fluorescent sheet 600 is on the optical axis of the focusing lens 500, and the blue laser light reflected by the reflecting surface of the second reflecting mirror 400 is condensed onto the yellow ceramic fluorescent sheet 600 by the focusing lens 500. The mirror holder 700 is provided with a light opening 702. The white light emitted from the yellow ceramic fluorescent sheet 600 is irradiated to the outside through the focusing lens 500, the light passing port 702, and the collimating lens 800.
In the compact laser tube headlamp 10, the blue laser emitted by the blue laser emitter 200 is converged onto the yellow ceramic fluorescent sheet 600 through the first reflector 300 and the second reflector 400 and the focusing lens 500, the blue laser irradiates the yellow ceramic fluorescent sheet 600 and excites yellow light, and the yellow light emitted by the yellow ceramic fluorescent sheet 600 and the blue laser are mixed into white light. The white light is irradiated from the collimating lens 800 to the outside through the focusing lens 500 and the light passing port 702. The size of the laser lamp tube headlamp is reduced, and the illumination requirement of narrow and small space occasions on the laser lamp tube headlamp is met.
The laser radiator 100 is used for receiving the blue laser emitter 200, the focusing lens 500 and the yellow ceramic fluorescent sheet 600, and specifically, the blue laser emitter 200, the focusing lens 500 and the yellow ceramic fluorescent sheet 600 are all connected with the laser radiator 100. The mirror holder 700 is coupled to the laser radiator 100. In this embodiment, the laser heat sink 100 is an aluminum laser heat sink, and aluminum has excellent thermal conductivity, so that the heat dissipation performance of the laser heat sink 100 can be increased. In another embodiment, the laser radiator is a copper laser radiator, and the heat conduction performance of copper is excellent, so that the heat radiation performance of the laser radiator can be further increased. In the present embodiment, the laser heat sink 100 has a plurality of heat dissipation holes. In other embodiments, the laser heat sink 100 is provided with a plurality of wavy edge fins to increase the contact area between the laser heat sink 100 and the air, so as to improve the heat dissipation effect of the laser heat sink 100.
The first reflector 300 and the second reflector 400 are used for reflecting the blue laser emitted from the blue laser emitter 200 to the focusing lens 500, and specifically, the first reflector 300 and the second reflector 400 are both connected to one surface of the reflector holder 700 close to the laser radiator 100. The optical axis of the blue laser light emitted from the blue laser emitter 200 makes an angle of 45 degrees with the reflective surface of the first reflector 300. Second mirror 400 is positioned on the same vertical line as first mirror 300. In the present embodiment, first mirror 300 and second mirror 400 are right-angle triangular mirrors. The reflective surface of second mirror 400 is at a 45 degree angle to the reflective surface of first mirror 300. The blue laser emitted from the blue laser emitter 200 is reflected by the first reflecting mirror 300 and reaches the reflecting surface of the second reflecting mirror 400. Blue laser beams emitted from the two blue laser emitters 200 are reflected by the reflecting surface of the second reflecting mirror 400 and then enter the focusing lens 500.
The focusing lens 500 is used for concentrating the blue laser light reflected by the reflecting surface of the second reflecting mirror 400 onto the yellow ceramic fluorescent sheet 600, in this embodiment, the yellow ceramic fluorescent sheet 600 is on the optical axis of the focusing lens 500, and the focusing lens 500 performs a convergence process on the blue laser light reflected by the reflecting surface of the second reflecting mirror 400 and emits the blue laser light onto the ceramic fluorescent sheet 300 to increase the efficiency of converting the blue laser light emitted by the blue laser emitter 200 into white light. In this embodiment, the focusing lens 500 is a transmissive focusing lens, which has a simple structure and few optical elements. The transmissive focusing lens focuses the blue laser light reflected by the second reflecting mirror 400 onto the yellow ceramic phosphor plate 600 in an axial direction, and the beam of the blue laser light passing through the transmissive focusing lens is easily adjusted and allows a small deviation such as eccentricity of the laser beam, that is, allows the blue laser beam to be incident into the lens eccentrically or angularly offset. The focusing lens 500 is coated with a high transmittance optical film. In one embodiment, a focusing slot 102 is formed on a surface of the laser heat sink 100 close to the mirror holder 700, and the focusing lens 500 is inserted into the focusing slot 102 and is clamped with the laser heat sink 100.
The yellow ceramic fluorescent sheet 600 serves to change the collected blue laser light into white light, and particularly, the yellow ceramic fluorescent sheet 600 is disposed between the laser radiator 100 and the focusing lens 500. The yellow ceramic fluorescent sheet 600 is on the optical axis of the focusing lens 500. Further, a fluorescent card slot 103 is formed at the bottom of the focusing card slot 102, and the yellow ceramic fluorescent sheet 600 is inserted into the fluorescent card slot 103 and is clamped with the reflector bearing seat 700. The blue laser light reflected by the reflecting surface of the second reflecting mirror 400 is condensed on the yellow ceramic fluorescent sheet 600 by the focusing lens 500. The blue laser light is emitted to the yellow ceramic fluorescent sheet 600 to excite yellow light, and the yellow light emitted from the yellow ceramic fluorescent sheet 600 and the blue laser light are mixed to form white light.
The mirror holder 700 is used for receiving the first reflector 300 and the second reflector 400, and specifically, in one embodiment, two mirror slots 701 are formed in a surface of the mirror holder 700 close to the laser radiator 100, and the first reflector 300 and the second reflector 400 are respectively received in one mirror slot 701 and connected to the mirror holder 700. In the present embodiment, the mirror holder 700 is an aluminum mirror holder to increase the heat dissipation performance of the mirror holder 700. In another embodiment, the mirror holder is a copper mirror holder to further increase the heat dissipation performance of the mirror holder 700.
The collimating lens 800 is used for converting the white laser passing through the collimating lens 800 into parallel light, and specifically, the collimating lens 800 is connected to a surface of the mirror bearing seat 700 away from the laser radiator 100. The mirror holder 700 is provided with a light opening 702. The white light emitted from the yellow ceramic fluorescent sheet 600 passes through the focusing lens 500, the light-passing port 702 and the collimating lens 800, and is integrated by the collimating lens 800 to become parallel light rays to be irradiated to the outside.
In order to increase the service life of the compact laser tube headlight, please refer to fig. 2 to 4 together, in one embodiment, the compact laser tube headlight 10 further includes a window glass 810, and the window glass 810 is disposed between the collimating lens 800 and the laser radiator 100 and connected to the laser radiator 100. Further, a glass clamping groove 703 is formed in one surface of the laser radiator 100 close to the collimating lens 800, and the window glass 810 is inserted into the glass clamping groove 703 and connected to the laser radiator 100. The window glass 810 is used to further seal the two blue laser emitters 200 and prevent external impurities from entering the interior of the compact laser tube headlamp, so as to increase the protection of the two blue laser emitters 200. In the present embodiment, the window glass 810 is a high temperature window glass, which has high transparency, stable chemical properties, special physical properties, high temperature resistance, and thermal shock resistance. The high temperature window glass is adapted to the working environment inside the laser lamp tube headlight, so that a user can observe the internal operation condition of the laser lamp tube headlight through the window glass 810. In one embodiment, the light entrance surface of the window glass 810 is provided with an antireflection film. In one embodiment, an antireflection film is arranged on the light emitting surface of the window glass 810 so as to further increase the passing performance of laser, reduce the weakening of the window glass 810 on the laser intensity, and improve the illumination intensity of the compact laser tube headlamp. Thus, the window glass 810 increases the lifespan of the compact laser tube headlamp.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. A compact laser tube headlamp comprising: the device comprises a laser radiator, a blue laser emitter, a first reflector, a second reflector, a focusing lens, a yellow ceramic fluorescent sheet, a reflector bearing seat and a collimating lens;
the blue laser emitter, the focusing lens and the yellow ceramic fluorescent sheet are all connected with the laser radiator, and the reflector bearing seat is connected with the laser radiator; the first reflector and the second reflector are both connected with one surface of the reflector bearing seat close to the laser radiator; the collimating lens is connected with one surface of the reflector bearing seat, which is far away from the laser radiator;
the optical axis of blue laser emitted by the blue laser emitter forms an angle of 45 degrees with the reflecting surface of the first reflecting mirror; the second reflector and the first reflector are positioned on the same vertical line; the reflecting surface of the second reflector and the reflecting surface of the first reflector form an angle of 45 degrees; the blue laser emitted by the blue laser emitter reaches the reflecting surface of the second reflecting mirror after being reflected by the first reflecting mirror; the yellow ceramic fluorescent sheet is arranged between the laser radiator and the focusing lens; the yellow ceramic fluorescent sheet is arranged on the optical axis of the focusing lens, and the blue laser reflected by the reflecting surface of the second reflecting mirror is converged on the yellow ceramic fluorescent sheet through the focusing lens; the reflector bearing seat is provided with a light through port; the white light emitted by the yellow ceramic fluorescent sheet irradiates the outside through the focusing lens, the light through port and the collimating lens.
2. The compact laser tube headlamp of claim 1 further comprising a window glass disposed between and coupled to the collimating lens and the laser heat sink.
3. The compact laser lamp tube headlamp of claim 2 wherein a glass slot is disposed on a side of the laser radiator adjacent to the collimating lens, and the window glass is inserted into the glass slot and connected to the laser radiator.
4. The compact laser tube headlamp of claim 2 wherein the light entrance surface of the window glass is provided with an antireflection coating.
5. The compact type laser tube headlamp of claim 2 wherein an antireflection film is disposed on the light exit surface of the window glass.
6. The compact laser tube headlamp of claim 1 wherein the laser heat sink is an aluminum laser heat sink.
7. The compact laser tube headlamp of claim 1 wherein the laser radiator is a copper laser radiator.
8. The compact laser tube headlamp of claim 1 wherein the mirror holder is an aluminum mirror holder.
9. The compact laser tube headlamp of claim 1 wherein the mirror holder is a copper mirror holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922196547.4U CN210771915U (en) | 2019-12-10 | 2019-12-10 | Compact laser lamp tube headlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922196547.4U CN210771915U (en) | 2019-12-10 | 2019-12-10 | Compact laser lamp tube headlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210771915U true CN210771915U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922196547.4U Active CN210771915U (en) | 2019-12-10 | 2019-12-10 | Compact laser lamp tube headlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210771915U (en) |
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2019
- 2019-12-10 CN CN201922196547.4U patent/CN210771915U/en active Active
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