Super-bright short-wave infrared light source generating device

Abstract

The utility model discloses a super-bright short-wave infrared light source generation device, relates to the technical field of infrared light source generation, and aims to solve the problems that a plane mirror is adopted as a lens in the conventional infrared light source generation device, non-uniformly distributed straight lines are easily generated when light beams pass through the plane lens, output light spots are non-uniform, and the generation efficiency is low. And the subsequent use effect is influenced. The shaping cap is mounted at the front end of the laser generator, and a linear shaping lens is mounted in the front end of the shaping cap; the lens clamping groove is formed in the front end of the laser generator, a rubber ring is arranged on the inner wall of the lens clamping groove, a dodging lens is installed on the inner side of the rubber ring, a lens frame is installed on the outer wall of the dodging lens, and a plurality of curved micro lenses are arranged on the outer wall of the dodging lens.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared light source generation, in particular to an ultra-bright short-wave infrared light source generation device. Background Art

[0002] Semiconductor lasers, also known as laser diodes, are laser generating devices that use semiconductor materials as working materials. Semiconductor laser devices can be divided into homojunction, single heterojunction, double heterojunction, etc. Homojunction lasers and single heterojunction lasers are mostly pulse devices at room temperature, while double heterojunction lasers can achieve continuous operation at room temperature;

[0003] At present, conventional laser generators, such as announcement number CN203119280U, are called infrared lasers, including a laser body and a lens with a lens installed at the front end of the laser body, wherein the lens is a high-transmittance plane mirror.

[0004] The above-mentioned infrared light source generating device uses a plane mirror as a lens. When the light beam passes through the plane lens, it is easy to produce unevenly distributed straight lines, and the output light spot is uneven, which affects the subsequent use effect; therefore, we propose an ultra-bright short-wave infrared light source generating device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an ultra-bright short-wave infrared light source generating device to solve the problem that the existing infrared light source generating device proposed in the above background technology uses a plane mirror as a lens, and when the light beam passes through the plane lens, it is easy to produce unevenly distributed straight lines, and the output light spot is uneven, which affects the subsequent use effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultra-bright short-wave infrared light source generating device, comprising a laser generator, a wire is installed at the rear end of the laser generator;

[0007] Also includes:

[0008] A shaping cap is mounted on the front end of the laser generator, and a straight-line shaping lens is installed inside the front end of the shaping cap;

[0009] A lens slot is arranged inside the front end of the laser generator, a rubber ring is arranged on the inner wall of the lens slot, a light homogenizing lens is installed on the inner side of the rubber ring, a lens frame is installed on the outer wall of the light homogenizing lens, and a plurality of curved micro lenses are arranged on the outer wall of the light homogenizing lens.

[0010] Preferably, a spring pin is installed above the front end of the laser generator, a limiting hole is provided above the rear end of the shaping cap, a groove is provided at the lower end of the laser generator, a convex strip is provided at the lower end of the inner wall of the shaping cap, the lower end of the shaping cap is slidably connected with the groove at the lower end of the laser generator through the convex strip, and the upper end of the shaping cap is clamped and connected with the spring pin on the laser generator through the limiting hole.

[0011] Preferably, positioning grooves are provided on both sides of the lens slot, and positioning sheets are provided on both sides of the lens frame.

[0012] Preferably, limiting plates are provided on both sides of the inner wall of the shaping cap.

[0013] Preferably, both sides of the laser generator are provided with heat dissipation grooves, and a plurality of heat dissipation grooves are provided, and the upper end of the laser generator is provided with heat dissipation fins, and a plurality of heat dissipation fins are provided.

[0014] Preferably, the laser generator is a 1064nm ultra-bright short-wave semiconductor laser.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model arranges a light homogenizing lens and a straight line shaping lens at the front end of the laser generator. The light homogenizing lens has a plurality of curved micro lenses built in. Since the position of each curved micro lens is randomly distributed, the interference thereof is also random when the laser is incident. Therefore, there is no selective absorption of the entire spectrum of the infrared laser, thereby improving the uniformity of the laser beam spot. In combination with the straight line shaping lens in the shaping cap, the top of the straight line shaping lens is a complex two-dimensional aspherical surface. When the laser passes through, a large amount of spherical aberration will be generated, and the light path will be redistributed, the light in the central area will be reduced, and the edge light will be increased, so that the infrared laser beam can be optimized into a straight line with uniform light density and good stability after passing through, so as to improve the use effect. This solves the problem that the existing infrared light source generating device uses a plane mirror as a lens, and when the light beam passes through the plane lens, an unevenly distributed straight line is easily generated, and the output light spot is uneven, thereby affecting the subsequent use effect.

[0017] 2. The shaping cap and the light-homogenizing lens of the utility model are both detachable structures, and can be replaced independently when they are partially damaged or worn, so as to reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the laser generator and the shaping cap in the disassembled state of the utility model;

[0020] Figure 3It is a schematic diagram of the partial structure of the shaping cap of the utility model;

[0021] Figure 4 It is a schematic diagram of the local structure of the laser generator of the utility model;

[0022] In the figure: 1. laser generator; 2. heat sink; 3. heat sink fin; 4. wire; 5. shaping cap; 6. straight line shaping lens; 7. limit hole; 8. spring pin; 9. limit plate; 10. convex strip; 11. lens slot; 12. positioning slot; 13. rubber ring; 14. uniform light lens; 141. curved microlens; 15. lens frame; 16. positioning plate; 17. groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-4 , the utility model provides an embodiment: an ultra-bright short-wave infrared light source generating device, comprising a laser generator 1, a wire 4 is installed at the rear end of the laser generator 1;

[0025] Also includes:

[0026] A shaping cap 5 is mounted on the front end of the laser generator 1, and a straight line shaping lens 6 is installed inside the front end of the shaping cap 5;

[0027] The lens slot 11 is arranged inside the front end of the laser generator 1. A rubber ring 13 is arranged on the inner wall of the lens slot 11. A light homogenizing lens 14 is installed on the inner side of the rubber ring 13. A lens frame 15 is installed on the outer wall of the light homogenizing lens 14. A plurality of curved micro lenses 141 are arranged on the outer wall of the light homogenizing lens 14.

[0028] See also Figure 3 and Figure 4, a spring pin 8 is installed above the front end of the laser generator 1, a limiting hole 7 is arranged above the rear end of the shaping cap 5, a groove 17 is arranged at the lower end of the laser generator 1, and a convex strip 10 is arranged at the lower end of the inner wall of the shaping cap 5. The lower end of the shaping cap 5 is slidably connected with the groove 17 at the lower end of the laser generator 1 through the convex strip 10, and the upper end of the shaping cap 5 is snap-connected with the spring pin 8 on the laser generator 1 through the limiting hole 7. The shaping cap 5 is a detachable structure and is plugged with the front end of the laser generator 1 during installation. During the process, the convex strip 10 on the inner wall of its lower end can slide with the groove 17 at the lower end of the laser generator 1 to play a guiding role. When the spring pin 8 reaches the position of the limiting hole 7, it can be popped out under the action of the spring and engaged with the limiting hole 7 to fix the shaping cap 5. When the shaping cap 5 needs to be removed, the spring pin 8 can be pressed to make it enter the limiting hole 7, and then the shaping cap 5 can be pulled outward to separate the shaping cap 5 from the laser generator 1.

[0029] See also Figure 4 Positioning grooves 12 are provided on both sides of the lens slot 11, and positioning pieces 16 are provided on both sides of the lens frame 15. When the light-homogenizing lens 14 is inserted into the lens slot 11, the positioning pieces 16 on both sides thereof can be inserted into the positioning grooves 12 to achieve the effect of auxiliary positioning.

[0030] See also Figure 3 Limiting plates 9 are arranged on both sides of the inner wall of the shaping cap 5. After the shaping cap 5 is plugged into the laser generator 1, the limiting plates 9 on both sides of the inner wall can be pressed against the positioning plates 16 on both sides of the lens frame 15, further improving the connection stability of the uniform light lens 14.

[0031] See also Figure 1 Both sides of the laser generator 1 are provided with heat dissipation grooves 2, and multiple heat dissipation grooves 2 are provided. The upper end of the laser generator 1 is provided with heat dissipation fins 3, and multiple heat dissipation fins 3 are provided. The setting of the heat dissipation grooves 2 and the heat dissipation fins 3 increases the contact area between the outer wall of the laser generator 1 and the air, and achieves a better heat dissipation effect.

[0032] Furthermore, the laser generator 1 is a 1064nm ultra-bright short-wave semiconductor laser.

[0033] Working principle: When in use, the infrared laser emitted by the laser generator 1 can first pass through the uniform light lens 14 embedded in the front end. The uniform light lens 14 has a plurality of curved micro lenses 141 built in. Since the position of each curved micro lens 141 is randomly distributed, the interference thereof is also random when the laser is incident. Therefore, there is no selective absorption of the entire spectrum of the infrared laser, which improves the uniformity of the laser beam spot. In combination with the straight-line shaping lens 6 in the shaping cap 5, the top of which is a complex two-dimensional aspherical surface, a large amount of spherical aberration will be generated when the laser passes through, which redistributes the light path, reduces the light in the central area, and increases the edge light, so that the infrared laser beam can be optimized into a straight line with uniform light density and good stability after passing through, so as to improve the use effect.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An ultra-bright short-wave infrared light source generating device, comprising a laser generator (1), wherein a wire (4) is installed at the rear end of the laser generator (1); Features: Also includes: A shaping cap (5) is mounted on the front end of the laser generator (1), and a straight-line shaping lens (6) is mounted inside the front end of the shaping cap (5); A lens slot (11) is arranged inside the front end of the laser generator (1); a rubber ring (13) is arranged on the inner wall of the lens slot (11); a light homogenizing lens (14) is installed on the inner side of the rubber ring (13); a lens frame (15) is installed on the outer wall of the light homogenizing lens (14); and a plurality of curved micro lenses (141) are arranged on the outer wall of the light homogenizing lens (14).

2. The ultra-bright short-wave infrared light source generating device according to claim 1, characterized in that: A spring pin (8) is installed above the front end of the laser generator (1), a limiting hole (7) is arranged above the rear end of the shaping cap (5), a groove (17) is arranged at the lower end of the laser generator (1), a convex strip (10) is arranged at the lower end of the inner wall of the shaping cap (5), the lower end of the shaping cap (5) is slidably connected to the groove (17) at the lower end of the laser generator (1) through the convex strip (10), and the upper end of the shaping cap (5) is snap-connected to the spring pin (8) on the laser generator (1) through the limiting hole (7).

3. The ultra-bright short-wave infrared light source generating device according to claim 1, characterized in that: Positioning grooves (12) are provided on both sides of the lens slot (11), and positioning plates (16) are provided on both sides of the lens frame (15).

4. The ultra-bright short-wave infrared light source generating device according to claim 1, characterized in that: Limiting plates (9) are arranged on both sides of the inner wall of the shaping cap (5).

5. The ultra-bright short-wave infrared light source generating device according to claim 1, characterized in that: Both sides of the laser generator (1) are provided with heat dissipation grooves (2), and a plurality of heat dissipation grooves (2) are provided. The upper end of the laser generator (1) is provided with heat dissipation fins (3), and a plurality of heat dissipation fins (3) are provided.

6. The ultra-bright short-wave infrared light source generating device according to claim 1, characterized in that: The laser generator (1) is a 1064nm ultra-bright short-wave semiconductor laser.

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