A laser far field testing device

Abstract

The utility model discloses a kind of laser far field testing devices, belong to laser field, including fixed shell, CCD camera is slidably installed in fixed shell inside middle part, there is cushion block in the bottom of CCD camera, cushion block is installed in fixed ring inside, fixed ring is installed in the middle part of fixed shell inside bottom, one end of fixed shell is installed with limit seat, diffusing reflection film is installed in the outside of limit seat, laser tool is installed in the middle part of limit seat, the utility model is installed with limit seat in one end of fixed shell, laser tool is installed in the middle part of limit seat, to-be-measured laser is installed in the lower part of laser tool, laser tool belongs to plug-in, it is more convenient, CCD camera is slidably installed in fixed shell inside middle part, can quickly assemble to-be-measured laser, accurately, quickly test the far field performance of laser.

Description

Technical Field

[0001] This utility model relates to the field of lasers, and in particular to a laser far-field testing device. Background Technology

[0002] Compared to ordinary light sources, lasers have better monochromaticity and directionality, and higher brightness. Lasers have a wide range of applications, including laser marking, laser welding, laser cutting, fiber optic communication, laser ranging, lidar, laser weapons, laser discs, laser vision correction, laser beauty treatments, laser scanning, laser mosquito killers, and LIF non-destructive testing technology, among others. Laser systems can be divided into continuous wave lasers and pulsed lasers.

[0003] After a laser is manufactured, various parameters need to be measured. The far field is one of the most important parameters of a laser. The far field reflects the uniformity and directionality of the laser's energy distribution. Therefore, laser far field testing is a key step in laser performance verification and optimization. During testing, the laser needs to be fixed, often using bolts. Utility Model Content

[0004] Purpose of the invention: The purpose of this utility model is to provide a laser far-field testing device.

[0005] Technical solution: Includes a fixed shell, a CCD camera, a pad at the bottom of the CCD camera, the pad is installed inside the fixing ring, the fixing ring is installed in the middle of the bottom surface of the inner side of the fixed shell, a limit seat is installed at one end of the fixed shell, a diffuse reflection film is installed on the outside of the limit seat, and a laser fixture is installed in the middle of the limit seat. The fixed shell is made of unmodified materials and is painted on both the inner and outer sides.

[0006] By adopting the above technical solution, a limiting seat is installed at one end of the fixed shell, a laser fixture is installed in the middle of the limiting seat, and the laser to be tested is installed at the lower part of the laser fixture. The laser fixture is an insert type, which is relatively convenient. The CCD camera is slidably installed in the middle of the inner side of the fixed shell, which can quickly assemble the laser to be tested and accurately and quickly test the far-field performance of the laser.

[0007] Optionally, a slide rail is provided in the middle of the inner side of the fixed housing, and a slider is slidably installed inside the slide rail. The slider is fixedly installed at both ends of the CCD camera by means of bolt connection.

[0008] By adopting the above technical solution, the slider slides inside the slide rail for adjusting the height of the CCD camera.

[0009] Optionally, the rear of the CCD camera is equipped with connection cable one and connection cable two, which are connected to the controller.

[0010] By adopting the above technical solution, the CCD camera is used to process grayscale images to obtain far-field data.

[0011] Optionally, a through hole is provided at the other end of the fixed shell, and connecting wire one and connecting wire two are installed inside the through hole. Both connecting wire one and connecting wire two are multi-strand wires.

[0012] By adopting the above technical solution, connecting line one and connecting line two are used to transmit current and electrical signals.

[0013] Optionally, a groove is provided on one side of the laser fixture, and the groove is formed by a mold.

[0014] By adopting the above technical solution, the wire groove is used for the passage of the wire connecting the laser.

[0015] Optionally, the top of the laser fixture is provided with a locking position, which is formed by a mold.

[0016] By adopting the above technical solution, the locking position is used for hand insertion, making it convenient to remove the laser fixture.

[0017] Optionally, the limiting seat has a mounting port in the middle, and the mounting port is square.

[0018] By adopting the above technical solution, the mounting port is used for inserting the laser fixture.

[0019] Optionally, the laser under test is mounted on the lower part of the laser fixture, and the laser under test is mounted by friction fit.

[0020] By adopting the above technical solution, laser fixtures are used to fix the laser under test.

[0021] Beneficial effects: This utility model has a limiting seat installed at one end of the fixed shell, a laser fixture installed in the middle of the limiting seat, and a laser to be tested installed at the lower part of the laser fixture. The laser fixture is an insert type, which is convenient. The CCD camera is slidably installed in the middle of the inner side of the fixed shell, which can quickly assemble the laser to be tested and accurately and quickly test the far-field performance of the laser. Attached Figure Description

[0022] Fig. 1 This is an overall structural diagram of an embodiment of the present utility model;

[0023] Fig. 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0024] Fig. 3 This is a structural diagram of the diffuse reflection film according to an embodiment of the present invention;

[0025] Fig. 4 This is a side view of an embodiment of the present invention;

[0026] Explanation of reference numerals in the attached drawings: 1. Fixed shell; 2. Slider; 3. Slide rail; 4. CCD camera; 5. Connecting cable one; 6. Connecting cable two; 7. Mounting port; 8. Laser fixture; 9. Through hole; 10. Laser under test; 11. Locking position; 12. Wire groove; 13. Limiting seat; 14. Diffuse reflection film; 15. Fixing ring; 16. Pad. Detailed Implementation

[0027] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, such as... Figs. 1 to 4 The device includes a fixed housing 1, with a CCD camera 4 slidably mounted on the inner center of the fixed housing 1. A pad 16 is located at the bottom of the CCD camera 4 and is mounted inside a fixing ring 15. The fixing ring 15 is mounted in the center of the inner bottom surface of the fixed housing 1. A limiting seat 13 is mounted at one end of the fixed housing 1, with a diffuse reflection film 14 mounted on the outer side of the limiting seat 13. A laser fixture 8 is mounted in the center of the limiting seat 13. The fixing ring 15 is mounted in the center of the inner bottom surface of the fixed housing 1, and a pad 16 is mounted inside the fixing ring 15. The pad 16 can be selected according to usage requirements. The appropriately sized pad 16 provides support for the bottom of the CCD4 camera, allowing for height adjustment of the CCD camera 4. This better accommodates the needs of lasers placed at different heights. A limiting seat 13 is installed at one end of the fixed housing 1, with a laser fixture 8 installed in the middle of the limiting seat 13. The laser to be tested 10 is installed at the lower part of the laser fixture 8. The laser fixture is a plug-in type, which is convenient. The CCD camera 4 is slidably installed in the middle of the inner side of the fixed housing, allowing for quick assembly of the laser to be tested 10 and accurate, rapid testing of the laser's far-field performance.

[0028] A slide rail 3 is provided in the middle of the inner side of the fixed shell 1. A slider 2 is slidably installed inside the slide rail 3. The slider 2 is fixedly installed at both ends of the CCD camera 4. The slider 2 slides inside the slide rail 3 for adjusting the height of the CCD camera 4.

[0029] The CCD camera 4 has a connecting cable 5 and a connecting cable 6 installed at the rear. The CCD camera 4 is used to process grayscale images to obtain far-field data.

[0030] The other end of the fixed shell 1 is provided with a through hole 9. Connecting wire 5 and connecting wire 6 are installed inside the through hole 9. Connecting wire 5 and connecting wire 6 are used to transmit current and electrical signals.

[0031] A wire groove 12 is provided on one side of the laser fixture 8. The wire groove 12 is used for the passage of the wire connecting the laser.

[0032] The top of the laser fixture 8 is provided with a locking position 11, which is used for hand locking to facilitate the removal of the laser fixture 8.

[0033] The limiting seat 13 has an installation port 7 in the middle, which is used to insert the laser fixture 8.

[0034] The laser under test 10 is mounted on the lower part of the laser fixture 8, and the laser fixture 8 is used to fix the laser under test 10.

[0035] The implementation principle of a laser far-field testing device according to an embodiment of this application is as follows: When using a laser far-field testing device, the laser to be tested 10 is inserted into the lower part of the laser fixture 8, so that the connecting wire of the laser to be tested 10 is located in the wire groove 12. The laser fixture 8 is inserted into the installation port 7, and the installation of the laser fixture 8 in the limiting seat 13 is completed. The slider 2 is slidably installed inside the slide rail 3, and the CCD camera 4 is installed. Then, it can be powered on for testing. The laser emitted by the laser will illuminate the diffuse reflection film 14. The light field after diffuse reflection is imaged by the CCD camera 4. The grayscale image is processed by the host computer that controls the CCD camera 4 to obtain far-field data.

[0036] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A laser far-field testing device, characterized in that: The device includes a fixed housing (1), on which a CCD camera (4) is slidably mounted in the middle of the inner side. The bottom of the CCD camera (4) has a pad (16), which is installed inside a fixing ring (15). The fixing ring (15) is installed in the middle of the bottom surface of the inner side of the fixed housing (1). A limiting seat (13) is installed at one end of the fixed housing (1). A diffuse reflection film (14) is installed on the outside of the limiting seat (13). A laser fixture (8) is installed in the middle of the limiting seat (13).

2. The laser far-field testing device according to claim 1, characterized in that: A slide rail (3) is provided in the middle of the inner side of the fixed shell (1), and a slider (2) is slidably installed inside the slide rail (3). The slider (2) is fixedly installed at both ends of the CCD camera (4).

3. The laser far-field testing device according to claim 1, characterized in that: The CCD camera (4) is equipped with a connecting cable 1 (5) and a connecting cable 2 (6) at the rear.

4. The laser far-field testing device according to claim 3, characterized in that: The other end of the fixed shell (1) is provided with a through hole (9), and a connecting wire one (5) and a connecting wire two (6) are installed inside the through hole (9).

5. The laser far-field testing device according to claim 1, characterized in that: A wire groove (12) is provided on one side of the laser fixture (8).

6. The laser far-field testing device according to claim 1, characterized in that: The laser fixture (8) has a locking position (11) on its top.

7. The laser far-field testing device according to claim 1, characterized in that: The limiting seat (13) has an installation port (7) in the middle.

8. The laser far-field testing device according to claim 1, characterized in that: The laser to be tested (10) is installed at the lower part of the laser fixture (8).

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