Automatic focusing laser emitting device

Abstract

The utility model relates to an automatic focusing laser emitting device which comprises a case, a laser range finder, a main control board and a laser emitter. A mounting cavity is formed in the case, a mounting plate is arranged in the mounting cavity, and the laser range finder and the laser transmitter are fixedly arranged on the mounting plate; the laser transmitter comprises a laser and a lens assembly, the lens assembly comprises a lens support, at least two lenses and a driver, and the driver is used for driving at least one lens to slide on the lens support; the laser range finder and the driver are electrically connected with the main control board, and the laser range finder is adjacent to the lens assembly. The laser range finder can carry out range finding on a target object of the laser transmitter and feed back range finding data to the main control board, and the main control board controls a driver of the laser transmitter to work according to the range finding data so as to adjust the position of the lens on the support and achieve focusing of the lens assembly. And compared with manual focusing, the efficiency is higher, and the precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of laser emission, in particular to an automatic focusing laser emission device. Background Art

[0002] Lasers can be used for lighting. When used for lighting, the lighting range needs to be adjusted according to different application scenarios, that is, the focal length of the laser lens needs to be adjusted, so that the lighting range and lighting focus brightness can be adjusted.

[0003] The purpose of laser focusing is to make the size of the laser spot on the target object within a predetermined range when the laser is projected onto the target object, which is conducive to concentrated irradiation of the target object, while ensuring that the illuminance value and energy density within the set range can meet the requirements of the set technical indicators, and the irradiation range can also be adjusted for different distances, so that the irradiation area at different distances remains consistent. At present, most lasers use manual focusing when focusing, which has the characteristics of low adjustment efficiency and low precision. Utility Model Content

[0004] Based on this, it is necessary to provide an automatic focusing laser emitting device.

[0005] An automatic focusing laser emitting device comprises: a chassis, a laser rangefinder, a main control board and at least one laser emitter;

[0006] The chassis is provided with an installation cavity, the installation cavity is provided with an installation plate, the laser rangefinder and the laser transmitter are arranged in the installation cavity and fixedly arranged on the installation plate;

[0007] The laser transmitter comprises a laser and a lens assembly, wherein the lens assembly comprises a lens holder, at least two lenses and a driver, wherein the lens holder is arranged on the mounting plate, the driver is arranged on the lens holder, at least one of the lenses is slidably arranged on the lens holder, the driver is used to drive at least one of the lenses to slide on the lens holder, and the laser is used to emit laser light toward one end of the lens holder, so that the laser light is sequentially transmitted from each of the lenses to the outside along a first direction;

[0008] The laser rangefinder, the laser and the driver are electrically connected to the main control board respectively. The laser emission direction of the laser rangefinder is parallel to the first direction, and the laser rangefinder is arranged adjacent to the lens assembly.

[0009] In one of the embodiments, a rangefinder fixing plate is disposed on the mounting plate, the rangefinder fixing plate is disposed perpendicular to the mounting plate, the rangefinder fixing plate is provided with a fixing hole, and the transmitting end of the laser rangefinder is inserted into the fixing hole.

[0010] In one of the embodiments, a cover plate mounting groove is provided on the chassis, a first light-transmitting hole and a second light-transmitting hole communicating with the mounting cavity are provided at the bottom of the cover plate mounting groove, a lens cover plate is provided in the cover plate mounting groove, a first mounting hole and a second mounting hole are provided on the lens cover plate, a first protective lens is provided in the first mounting hole, a second protective lens is provided in the second mounting hole, an emitting end of the laser rangefinder is aligned with the first protective lens, and an emitting end of the lens assembly is aligned with the second protective lens.

[0011] In one embodiment, the number of the laser emitters is two, and the wavelengths of the lasers emitted by the two laser emitters are different.

[0012] In one of the embodiments, the laser transmitter further includes an optical fiber, an entrance hole is provided at one end of the lens bracket, one end of the optical fiber is connected to the laser, and the other end of the optical fiber is inserted into the entrance hole.

[0013] In one of the embodiments, a fiber optic card is disposed in the installation cavity, the fiber optic card is provided with a receiving channel, and the optical fiber is at least partially disposed in the receiving channel.

[0014] In one of the embodiments, a heat dissipation component is further included, and the laser is connected to the heat dissipation component.

[0015] In one embodiment, the heat dissipation assembly includes a heat sink and a fan, the laser is connected to one side of the heat sink, and the fan is connected to a side of the heat sink facing away from the laser.

[0016] In one embodiment, the heat sink includes a heat sink and a plurality of heat sink fins, one side of the heat sink is connected to the laser, and the side of the heat sink facing away from the laser includes a first heat sink area and a second heat sink area, the position of the first heat sink area corresponds to the position of the laser, the fan is arranged in the first heat sink area, and each of the heat sink fins is connected to the second heat sink area.

[0017] In the above-mentioned automatic focusing laser emitting device, the laser rangefinder can measure the distance of the target object of the laser emitter, and feed the distance measurement data back to the main control board. The main control board controls the driver of the laser emitter to work according to the distance measurement data to adjust the position of the lens on the bracket to achieve the focusing of the lens assembly. The laser emitter is focused by the distance measurement of the laser rangefinder, and automatic focusing is achieved, which is more efficient and more accurate than manual focusing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic diagram of a three-dimensional structure of a laser lighting device according to an embodiment;

[0020] Figure 2 A schematic diagram of a three-dimensional exploded structure of a laser lighting device according to an embodiment in one direction;

[0021] Figure 3 is a schematic diagram of a three-dimensional exploded structure of a laser lighting device according to an embodiment in another direction;

[0022] Figure 4 A schematic diagram of a green laser optical path of a laser lighting device according to an embodiment;

[0023] Figure 5 FIG. 1 is a schematic diagram of the optical path of a white light laser of a laser lighting device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 3As shown, it is an automatic focusing laser emitting device 100 of an embodiment of the utility model, comprising: a chassis 1, a laser rangefinder 13, a main control board 8 and at least one laser emitter; the chassis 1 is provided with a mounting cavity 101, the mounting cavity 101 is provided with a mounting plate 9, the laser rangefinder 13 and the laser emitter are arranged in the mounting cavity 101, and are fixedly arranged on the mounting plate 9; the laser emitter comprises a laser 16 and a lens assembly 11, the lens assembly 11 comprises a lens holder, at least two lenses and a driver, the lens holder is arranged on the mounting plate 9, The driver is arranged on the lens bracket, at least one of the lenses is slidably arranged on the lens bracket, the driver is used to drive at least one of the lenses to slide on the lens bracket, the laser 16 is used to emit laser to one end of the lens bracket, so that the laser is transmitted from each lens to the outside in sequence along the first direction; the laser rangefinder 13, the laser 16 and the driver are electrically connected to the main control board 8 respectively, the laser emission direction of the laser rangefinder 13 is parallel to the first direction, and the laser rangefinder 13 is arranged adjacent to the lens assembly 11.

[0026] In this embodiment, the laser 16 is used to generate laser light, the first end of the lens assembly 11 is the incident end, the second end of the lens assembly 11 is the transmitting end, and the first end of the lens assembly 11 is provided with an incident hole, and the laser light is emitted from the incident hole to each lens, and is emitted from the transmitting end after being transmitted through the lens. The principle of the laser rangefinder 13 is that the emitted laser beam is irradiated onto the target object, part of the laser energy is absorbed by the target object, and part of the laser light is reflected back. The receiver receives the reflected laser light and converts it into an electrical signal. By calculating the arrival and return time of the reflected laser light and the value of the speed of light, the distance between the target object and the laser rangefinder 13 is calculated. The transmitting end of the laser rangefinder 13 is in the same direction as the transmitting end of the lens assembly 11.

[0027] In this embodiment, the emission direction of the laser rangefinder 13 is the same as that of the laser transmitter, and the laser rangefinder 13 is adjacent to the lens assembly 11, so that the laser rangefinder 13 can measure the distance of the target object of the laser transmitter, and feed the distance measurement data back to the main control board 8, and the main control board 8 controls the driver of the laser transmitter to work according to the distance measurement data to adjust the position of the lens on the bracket to achieve the focus of the lens assembly 11. The laser transmitter is focused by the distance measurement of the laser rangefinder 13, so that automatic focusing is achieved, which is more efficient and more accurate than manual focusing.

[0028] It is worth mentioning that the lens assembly 11 can adopt the structure of Chinese invention disclosure CN117348191A, wherein the lens assembly 11 of the present application is the laser focusing mechanism of the invention, the lens bracket in the present application is the sliding bracket of the invention, the driver in the present application is equivalent to the driver of the invention, the two lenses of the present application are the lens assemblies of the invention, and in some embodiments of the present application, the rotating cylinder of the invention may also be included.

[0029] In one embodiment, the driver is a motor, and the driving motor adjusts the focal length of the lens by driving the angle of the rotating cylinder. For example, the driving motor can be called a zoom motor, and different angles of the zoom motor correspond to the focal lengths of different lenses. The laser rangefinder 13 tests the real-time irradiation distance data, and feeds the irradiation distance data back to the main control board 8 through a TTL signal. The main control board 8 searches for the corresponding angle data through the received distance data, and determines the corresponding address code in the zoom motor according to the angle data. The zoom motor rotates to move the corresponding lens to the optical path position corresponding to the corresponding angle, thereby achieving focusing. Finally, the automatic adjustment function of the light spot is realized (the light spot area remains consistent from 20m to 250m).

[0030] Through the precise distance measurement of the laser rangefinder 13 and based on the focusing, it can be ensured that the illuminance value and energy density within the set range can meet the requirements of the set technical indicators, and the irradiation range can also be adjusted for different distances so that the irradiation area at different distances remains consistent.

[0031] It should be understood that the lens assembly 11 may also adopt other structures in the prior art that can achieve focusing by driving the lens to move through a driver, which will not be described in detail in this embodiment.

[0032] In addition, the lens assembly 11 can be adjusted in angle by using the angle adjustment mechanism disclosed in Chinese utility model patent CN221057826U, which will not be described in detail in this embodiment.

[0033] To install the laser rangefinder 13, the main control board 8 and the laser transmitter, in one embodiment, please combine Figure 2 and Figure 3 A mounting cavity 101 is disposed on the top of the chassis 1 , and an opening is disposed on the top of the mounting cavity 101 . The chassis 1 further includes an upper cover 12 , which is disposed on the top of the chassis 1 and closes the opening of the mounting cavity 101 .

[0034] To further reinforce the laser rangefinder 13, in one embodiment, Figure 2 and Figure 3As shown, a rangefinder fixing plate 10 is arranged on the mounting plate 9, and the rangefinder fixing plate 10 is arranged perpendicular to the mounting plate 9. The rangefinder fixing plate 10 is provided with a fixing hole, and the transmitting end of the laser rangefinder 13 is inserted into the fixing hole.

[0035] In this embodiment, the rangefinder fixing plate 10 is arranged in an L shape, one end of the rangefinder fixing plate 10 is parallel to the mounting plate 9 and is attached to the surface of the mounting plate 9, and is connected to the mounting plate 9 by screws, and the other end of the rangefinder fixing plate 10 is arranged perpendicular to the mounting plate 9, and a fixing hole is provided at one end of the rangefinder fixing plate 10 perpendicular to the mounting plate 9, and the transmitting end of the rangefinder is inserted into the fixing hole, and the laser rangefinder 13 is fixed through the fixing hole, which can effectively reinforce the laser rangefinder 13.

[0036] In order to protect the transmitting end of the laser rangefinder 13 and the transmitting end of the lens assembly 11 and to protect the lens, in one embodiment, please combine Figure 2 and Figure 3 A cover plate mounting groove is provided on the chassis 1, a first light-transmitting hole and a second light-transmitting hole communicating with the mounting cavity 101 are provided at the bottom of the cover plate mounting groove, a lens cover plate 2 is provided in the cover plate mounting groove, a first mounting hole and a second mounting hole are provided on the lens cover plate 2, a first protective lens 6 is provided in the first mounting hole, a second protective lens 5 is provided in the second mounting hole, an emitting end of the laser rangefinder 13 is aligned with the first protective lens 6, and an emitting end of the lens assembly 11 is aligned with the second protective lens.

[0037] It should be understood that the transmitting end of the lens assembly 11 and the transmitting end of the laser rangefinder 13 are usually provided with a lens. If the lens is scratched, it is easy to affect the effect of laser emission and the accuracy of ranging. In this embodiment, the front end (transmitting end) of the chassis 1 is provided with a cover plate mounting groove, and the cover plate mounting groove is used to install the lens cover plate 2. The lens cover plate 2 is installed in the cover plate mounting groove by means of snap, screw connection, bonding, etc. For example, the side wall of the cover plate mounting groove is provided with a snap groove, and the edge protrusion of the lens cover plate 2 is provided with a snap piece, and the snap piece is inserted into the snap groove, so that the lens cover plate 2 is installed in the cover plate mounting groove. The emitting end of the lens assembly 11 and the emitting end of the laser rangefinder 13 are in contact with the inner surface of the side wall of the chassis 1 facing away from the mounting groove. By arranging the first protective lens 6 and the second protective lens 5 on the lens cover plate 2, the emitting end of the lens assembly 11 and the lens of the emitting end of the laser rangefinder 13 can be protected. When the first protective lens 6 and the second protective lens 5 are scratched or damaged, the lens cover plate 2 can be removed from the cover plate mounting groove as a whole, and the lens cover plate 2 can be replaced as a whole, and the new first protective lens 6 and the second protective lens 5 are replaced, so that the accuracy of the laser rangefinder 13 and the lighting effect of the laser transmitter are guaranteed.

[0038] In order to make the installation of the first protective lens 6 and the second protective lens 5 more stable, in one embodiment, as shown in FIG. Figure 2 As shown, a first sealing gasket 3 is arranged in the first mounting hole, and the first sealing gasket 3 is sleeved on the outer side of the first protective lens 6. A second sealing gasket 4 is arranged in the second mounting hole, and the second sealing gasket 4 is sleeved on the outer side of the second protective lens 5. By arranging the first sealing gasket 3 and the second sealing gasket 4, the installation of the first protective lens 6 and the second protective lens 5 is made more stable, and the first protective lens 6 and the second protective lens 5 can be protected.

[0039] In one embodiment, the number of the laser emitters is two, and the wavelengths of the lasers emitted by the two laser emitters are different. In this embodiment, the light waves emitted by the two laser emitters are different, and the colors presented are also different. For example, one laser emitter emits green light, and the other laser emitter emits white light.

[0040] The spectrum range of green light is 500nm-540nm, and the spectrum range of white light is 380nm-780nm. In order to avoid the influence of the same range band on the accuracy of the laser rangefinder, in this embodiment, a laser rangefinder with a 1535nm band is used.

[0041] It is worth mentioning that the emission spectrum of the white laser and the emission spectrum of the green laser are both within the range of 380nm to 780nm of the spectrum of visible light to the human eye, and both can achieve lighting functions. Among them, the working principle of the white laser is to form white light by mixing red, green and blue lasers together. Specifically, one of the laser emitters in this embodiment is an RGB white laser 16, which includes a red laser 16, a green laser 16 and a blue laser 16. These three parts each produce monochromatic light of different colors, which are then modulated and mixed through optical elements (such as reflectors and beam shapers, optical fibers) to finally form white light. Another laser emitter in this embodiment is a green laser 16, which is used to emit green light.

[0042] In one embodiment, the laser transmitter further includes a driving board 14, which is electrically connected to the laser 16, and the driving board 14 is also electrically connected to the main control board 8. In this embodiment, the driving board 14 is used to connect to a power source to provide the required electrical energy to the laser 16 to drive the laser 16 to work; the main control board 8 is used to communicate with the upper level, thereby realizing the control of the driving board 14, the laser 16 and the driver.

[0043] In one embodiment, the laser transmitter further includes an optical fiber (not shown), an entrance hole is provided at one end of the lens holder, one end of the optical fiber is connected to the laser 16, and the other end of the optical fiber is inserted into the entrance hole.

[0044] In this embodiment, the laser 16 is used to generate laser light. Figure 4 As shown, the laser 16 is provided with a laser tube 161, a FAE 162, a collimating lens 163, a reflector 164, a light-homogenizing component 165 and a coupling lens 166. The laser emitted by the laser tube is sequentially emitted to the optical fiber 167 through the FAE 162, the collimating lens 163, the reflector 164, the light-homogenizing component 165 and the coupling lens 166, and is propagated from the optical fiber 167 to the incident hole of the lens assembly 11, and is emitted from the emission end to the outside along the lenses of the lens assembly 11. Among them, since the laser beam output by the optical fiber is Gaussian light, and the divergence angle is limited due to the influence of the NA value of the optical fiber, it cannot meet the application of linear homogenized light spots. In order to meet the light spot uniformity standard required in the application, the light after the multi-tube light is combined is subjected to light homogenization before entering the coupling lens to improve the uniformity of the light spot.

[0045] It is worth mentioning that the internal structure of the above laser 16 is suitable for the green laser 16, and the white laser 16 can adopt a structure similar to the green laser 16, for example, Figure 5 As shown, the white light laser 16 can adopt a structure similar to that of the green light laser 16, for example, Figure 5 As shown, the laser is provided with a green laser tube 1601, a blue laser tube 1602, a red laser tube 1603, an FAE 1604, a collimating lens 1605, a reflector (1606A, 1606B), a light-homogenizing component 1607 and a coupling lens 1608. The green laser tube 1601, the blue laser tube 1602 and the red laser tube 1603 are respectively emitted to the reflector (1606A, 1606B) through the FAE 1604 and the collimating lens 1605, and are reflected by the reflector (1606A, 1606B) to the light-homogenizing component 1607 and the coupling lens 1608, and then emitted to the optical fiber 1609.

[0046] In order to constrain the optical fiber and prevent the optical fiber from being too long and being placed in a disorderly manner in the installation cavity 101, in one embodiment, Figure 2 and Figure 3 As shown, a fiber optic card 15 is disposed in the installation cavity 101 , and the fiber optic card 15 is provided with a receiving channel, and the optical fiber is at least partially disposed in the receiving channel.

[0047] In this embodiment, the accommodating channel is used to accommodate and store the optical fiber, and the optical fiber can be wound around the optical fiber, thereby preventing the optical fiber from being too long and being placed in a disorderly manner in the installation cavity 101.

[0048] In one embodiment, the automatic focusing laser emitting device further comprises a heat dissipation component, and the laser 16 is connected to the heat dissipation component. It should be understood that the laser 16 will generate a large amount of heat when working, and the heat dissipation component can quickly dissipate the heat. In one embodiment, the heat dissipation component is arranged in a position away from the transmitting end of the lens assembly 11 in the chassis 1, for example, the transmitting end is located at the front end of the chassis 1, and the heat dissipation component is located at the rear end. In this way, by arranging the heat dissipation component away from the transmitting end, it is possible to effectively avoid affecting the laser emission of the transmitting end.

[0049] In order to improve the heat dissipation efficiency, in one embodiment, please combine Figure 2 and Figure 3 The heat dissipation assembly includes a radiator 17 and a fan 18 . The laser 16 is connected to one side of the radiator 17 , and the fan 18 is connected to a side of the radiator 17 facing away from the laser 16 .

[0050] In this embodiment, the fan 18 is disposed at the rear end of the chassis 1, and the exhaust direction of the fan 18 is toward a direction away from the chassis 1. Thus, by disposing the fan 18, the air circulation speed on the surface of the radiator 17 can be accelerated, thereby improving the heat dissipation efficiency. Figure 2 As shown, the fan 18 has a fan socket 7, and the fan socket 7 is used for connecting to a power source.

[0051] In order to further improve the heat dissipation efficiency, in one embodiment, Figure 3 As shown, the radiator 17 includes a heat sink 171 and a plurality of heat sink fins 172, one side of the heat sink 171 is connected to the laser 16, and the side of the heat sink 171 facing away from the laser 16 includes a first heat sink area and a second heat sink area, the position of the first heat sink area corresponds to the position of the laser 16, the fan 18 is arranged in the first heat sink area, and each of the heat sink fins 172 is connected to the second heat sink area.

[0052] In this embodiment, the heat sink 171 and the heat sink fins 172 are integrally formed, and the heat sink 17 is made of aluminum alloy or metallic copper. Aluminum alloy or metallic copper has good thermal conductivity. The laser 16 is arranged on the heat sink 171 at a position opposite to the first heat sink area, so that the fan 18 can quickly dissipate the heat of the laser 16, and the heat sink fins 172 located in the second heat sink area can effectively increase the contact area with the air, thereby improving the heat dissipation efficiency.

[0053] In one embodiment, Figure 2 and Figure 3As shown, a protective plate 19 is provided at the emitting end of the mounting cavity 101 away from the lens assembly 11 , and the protective plate 19 is provided with an exhaust grille, which is used to protect the fan 18 , and can provide an exhaust channel for the fan 18 through the exhaust grille.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An automatic focusing laser emitting device, characterized in that: include: Chassis, laser rangefinder, main control board and at least one laser transmitter; The chassis is provided with an installation cavity, the installation cavity is provided with an installation plate, the laser rangefinder and the laser transmitter are arranged in the installation cavity and fixedly arranged on the installation plate; The laser transmitter comprises a laser and a lens assembly, wherein the lens assembly comprises a lens holder, at least two lenses and a driver, wherein the lens holder is arranged on the mounting plate, the driver is arranged on the lens holder, at least one of the lenses is slidably arranged on the lens holder, the driver is used to drive at least one of the lenses to slide on the lens holder, and the laser is used to emit laser light toward one end of the lens holder, so that the laser light is sequentially transmitted from each of the lenses to the outside along a first direction; The laser rangefinder, the laser and the driver are electrically connected to the main control board respectively. The laser emission direction of the laser rangefinder is parallel to the first direction, and the laser rangefinder is arranged adjacent to the lens assembly.

2. The automatic focusing laser emitting device according to claim 1, characterized in that: The mounting plate is provided with a rangefinder fixing plate, the rangefinder fixing plate is arranged perpendicular to the mounting plate, the rangefinder fixing plate is provided with a fixing hole, and the transmitting end of the laser rangefinder is inserted into the fixing hole.

3. The automatic focusing laser emitting device according to claim 1, characterized in that: The chassis is provided with a cover plate mounting groove, the bottom of the cover plate mounting groove is provided with a first light-transmitting hole and a second light-transmitting hole connected with the mounting cavity, a lens cover is provided in the cover plate mounting groove, a first mounting hole and a second mounting hole are provided on the lens cover, a first protective lens is provided in the first mounting hole, a second protective lens is provided in the second mounting hole, the emitting end of the laser rangefinder is aligned with the first protective lens, and the emitting end of the lens assembly is aligned with the second protective lens.

4. The automatic focusing laser emitting device according to claim 1, characterized in that: The number of the laser emitters is two, and the wavelengths of the lasers emitted by the two laser emitters are different.

5. The automatic focusing laser emitting device according to claim 1, characterized in that: The laser transmitter also includes an optical fiber. An incident hole is provided at one end of the lens bracket. One end of the optical fiber is connected to the laser, and the other end of the optical fiber is inserted into the incident hole.

6. The automatic focusing laser emitting device according to claim 5, characterized in that: An optical fiber card is arranged in the installation cavity, and the optical fiber card is provided with an accommodating channel. The optical fiber is at least partially arranged in the accommodating channel.

7. The automatic focusing laser emitting device according to any one of claims 1 to 6, characterized in that: It also includes a heat dissipation component, and the laser is connected to the heat dissipation component.

8. The automatic focusing laser emitting device according to claim 7, characterized in that: The heat dissipation assembly comprises a heat sink and a fan. The laser is connected to one side of the heat sink, and the fan is connected to one side of the heat sink facing away from the laser.

9. The automatic focusing laser emitting device according to claim 8, characterized in that: The radiator includes a heat sink and a plurality of heat sink fins. One side of the heat sink is connected to the laser. The side of the heat sink facing away from the laser includes a first heat sink area and a second heat sink area. The position of the first heat sink area corresponds to the position of the laser. The fan is arranged in the first heat sink area, and each of the heat sink fins is connected to the second heat sink area.

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