Light intensity test structure for LED metal tube
By designing a light intensity testing structure for LED metal tubes, including a test photoelectric module, a light receiving hole slot, a first diffusion hole and a second diffusion hole, the problem of existing equipment being affected by external light sources and the singularity of test results is solved, and a more accurate and uniform light intensity testing effect is achieved.
Patent Information
- Application Number
- CN202421719888.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-19
AI Technical Summary
Existing LED metal tube light intensity testing equipment is easily affected by external light sources, and the test results caused by vertical light sources are poor.
A light intensity testing structure including a test photoelectric module, a light receiving hole slot, a first diffusion hole and a second diffusion hole are designed. The light receiving hole groove is fitted with the LED metal tube, and the first diffusion hole and the second diffusion hole form a light diffusion channel, diffusing the vertical light source downward and outward to the photosensitive chip.
It effectively avoids interference from external light sources, improves the accuracy of test results, and solves the problem of singleness of test results through uniform diffusion of light.
Smart Images
Figure CN222866186U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LED light-emitting chips, in particular to a light intensity testing structure for an LED metal tube. Background Art
[0002] The LED metal light-emitting tube test equipment of the prior art fixes the LED metal light-emitting tube inside the equipment. Since the structure of the equipment fixing the LED metal light-emitting tube is not closed, it is easy for external ambient light to enter the equipment during the test of the LED metal light-emitting tube, affecting the accuracy of the test results. At the same time, the test equipment of the prior art directly receives the light source of the LED metal light-emitting tube, and the vertical light source of the LED metal light-emitting tube is relatively concentrated, resulting in a single test result. Therefore, it is necessary to provide a light intensity test structure for LED metal tubes, which can solve the problem that the LED metal tube light intensity test equipment in the prior art is easily affected by the external light source and the test results are poorly single due to the vertical light source. Summary of the invention
[0003] The purpose of the utility model is to provide a light intensity test structure for LED metal tubes, which can solve the problems in the prior art that the light intensity test equipment for LED metal tubes is easily affected by external light sources and the test results have poor uniformity due to vertical light sources.
[0004] The utility model is achieved in this way:
[0005] A light intensity test structure for an LED metal tube comprises a test photoelectric module, a light receiving hole slot, a first diffusion hole and a second diffusion hole; the light receiving hole slot is arranged in the test photoelectric module, and the LED metal tube is matched and embedded in the light receiving hole slot, so that there is no gap between the LED metal tube and the light receiving hole slot; the upper end of the first diffusion hole is connected to the lower end of the light receiving hole slot, the upper end of the second diffusion hole is connected to the lower end of the first diffusion hole, and the first diffusion hole is larger than the light receiving hole slot, and the second diffusion hole is larger than the first diffusion hole, so as to form a light diffusion channel, and a photosensitive chip is arranged at the bottom of the second diffusion hole.
[0006] The first diffusion hole includes a diffusion surface and a diffusion sheet. The diffusion surface is a conical structure that is narrow at the top and wide at the bottom. The upper end diameter of the diffusion surface is consistent with the diameter of the light receiving hole groove. Several diffusion sheets are arranged around the lower end of the diffusion surface and between the second diffusion hole.
[0007] The light receiving hole groove is a cylindrical structure.
[0008] The plurality of diffusion sheets are arranged in a cylindrical shape, and the diameter of the cylinder formed by the plurality of diffusion sheets is larger than the diameter of the lower end of the diffusion surface.
[0009] The second diffusion hole is a rectangular structure, and the short side length of the rectangular structure is greater than the diameter of the cylinder formed by the plurality of diffusion sheets, so that the vertical projections of the plurality of diffusion sheets are located within the range of the second diffusion hole.
[0010] The test optoelectronic module, the light receiving hole slot, the first diffusion hole and the second diffusion hole are an integrated structure.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. The utility model is provided with a test photoelectric module and a light-collecting hole groove, the light-collecting hole groove is integrally formed on the test photoelectric module of the insulating bakelite, and the size of the light-collecting hole groove is consistent with the size of the LED metal tube, so that the LED metal tube is completely embedded in the light-collecting hole groove, and there is no gap between the two, which can ensure that the external ambient light will not enter the test photoelectric module through the light-collecting hole groove and interfere with the test process, and further avoid the interference of external current on the test process through the insulating bakelite, effectively ensuring the accuracy of the light intensity test result of the LED metal tube.
[0013] 2. Since the utility model is provided with the first diffusion hole and the second diffusion hole, the diffusion surface of the conical structure diffuses the vertical light source of the LED metal tube downward and outward, and further diffuses it through the diffusion sheet with a larger cylindrical diameter, and finally diffuses it to the photosensitive chip at the bottom through the second diffusion hole of a larger size, so that the photosensitive chip can receive light sources in all directions, avoiding the problem of singleness of test results caused by vertical light sources, and the large diffusion area and receiving area are conducive to improving the light intensity test effect of the LED metal tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front view cross-sectional view of the light intensity test structure for LED metal tubes of the utility model;
[0015] Figure 2 The utility model is a maintenance view of a light intensity test structure for an LED metal tube.
[0016] In the figure, 1 is a test photoelectric module, 2 is a light receiving hole slot, 3 is a first diffusion hole, 31 is a diffusion surface, 32 is a diffusion sheet, and 4 is a second diffusion hole. DETAILED DESCRIPTION
[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0018] Please see attached Figure 1 and attached Figure 2A light intensity test structure for an LED metal tube comprises a test photoelectric module 1, a light receiving hole slot 2, a first diffusion hole 3 and a second diffusion hole 4; the light receiving hole slot 2 is arranged in the test photoelectric module 1, and the LED metal tube is matched and embedded in the light receiving hole slot 2, so that there is no gap between the LED metal tube and the light receiving hole slot 2; the upper end of the first diffusion hole 3 is connected to the lower end of the light receiving hole slot 2, and the upper end of the second diffusion hole 4 is connected to the lower end of the first diffusion hole 3, and the first diffusion hole 3 is larger than the light receiving hole slot 2, and the second diffusion hole 4 is larger than the first diffusion hole 3, so as to form a light diffusion channel, and a photosensitive chip is arranged at the bottom of the second diffusion hole 4.
[0019] The size of the light-collecting hole 2 in the test optoelectronic module 1 is made according to the outer diameter of the LED metal tube to be tested, thereby ensuring that the LED metal tube can be fully matched and embedded in the light-collecting hole 2, ensuring that there is no gap between the LED metal tube and the light-collecting hole 2, and thus ensuring that the test process of the LED metal tube is not disturbed by external ambient light, thereby improving the accuracy of the test results.
[0020] By setting the first diffusion hole 3 and the second diffusion hole 4, the light source of the LED metal tube can be emitted vertically from the light receiving hole groove 2 and diffused twice, so that the photosensitive chip at the bottom of the second diffusion hole 4 can receive vertical and oblique light sources, thereby avoiding the test uniformity problem caused by the vertical light source.
[0021] Please see attached Figure 2 The first diffusion hole 3 includes a diffusion surface 31 and a diffusion sheet 32. The diffusion surface 31 is a conical structure that is narrow at the top and wide at the bottom. The upper end diameter of the diffusion surface 31 is consistent with the diameter of the light receiving hole groove 2. A plurality of diffusion sheets 32 are arranged around the lower end of the diffusion surface 31 and the second diffusion hole 4.
[0022] The diffusion surface 31 with an axisymmetric conical structure can diffuse the vertical light source of the LED metal tube outward and downward, change the direction of the light source, and the diffused light source has good uniformity, thereby avoiding the problem of test uniformity. The cone angle of the diffusion surface 31 can be adaptively adjusted according to actual diffusion requirements. The larger the diffusion area, the larger the receiving area, and the better the test effect.
[0023] Please see attached Figure 2 The light receiving hole groove 2 is a cylindrical structure, which is used to match the shape of the LED metal tube. The direction of the light source emitted by the LED metal tube through the light receiving hole groove 2 is vertically downward.
[0024] Please see attached Figure 2 The plurality of diffusion sheets 32 are arranged in a cylindrical shape, and the diameter of the cylinder formed by the plurality of diffusion sheets 32 is greater than the diameter of the lower end of the diffusion surface 31 .
[0025] The diffusion sheet 32 is used to diffuse the light source diffused by the diffusion surface 31 further downward into the second diffusion hole 4. Since the cylinder diameter is larger than the maximum diameter of the lower end of the diffusion surface 31, the light source can be further diffused.
[0026] Please see attached Figure 1 The second diffusion hole 4 is a rectangular structure, and the short side length of the rectangular structure is greater than the diameter of the cylinder formed by several diffusion sheets 32, so that the vertical projections of the several diffusion sheets 32 are located within the range of the second diffusion hole 4, and the diffused light source is uniform.
[0027] The second diffusion hole 4 is used to diffuse the light source to the photosensitive chip at the bottom, thereby ensuring that the photosensitive chip can receive light sources in all vertical and oblique directions, thereby avoiding the uniformity of the test results caused by the vertical light source.
[0028] Please see attached Figure 1 The test optoelectronic module 1, the light receiving hole slot 2, the first diffusion hole 3 and the second diffusion hole 4 are an integrated structure.
[0029] Preferably, the test photoelectric module 1 can be made of insulating bakelite, which can prevent external current from affecting the test process and further ensure the accuracy of the test results.
[0030] The test photoelectric module 1 can be manufactured according to the size of the LED metal tube and the light collection requirements of the photosensitive chip. The light collection hole 2, the first diffusion hole 3 and the second diffusion hole 4 are formed in the test photoelectric module 1 in an integrated manner to ensure that the entire test photoelectric module 1 has no gaps and the test process will not be affected by external ambient light.
[0031] Please see attached Figure 1 and attached Figure 2 The method of using the utility model in the light intensity test of the LED metal tube is:
[0032] The light receiving hole groove 2 is made according to the adaptability of the outer diameter of the LED metal tube to ensure that the LED metal tube can be matched and embedded in the light receiving hole groove 2, and there is no gap between the light receiving hole groove 2 and the LED metal tube to prevent external ambient light from entering the test optoelectronic module 1.
[0033] The light source of the LED metal tube diffuses downward and outward through the diffusion surface 31 of the first diffusion hole 3, and then diffuses downward and outward through a plurality of diffusion sheets 32, and finally diffuses to the photosensitive chip through the second diffusion hole 4, which can effectively diffuse the vertical light source evenly in all directions, so that the photosensitive chip can receive light sources in all vertical and oblique directions, and the uniformity of the light source after diffusion is better, thereby avoiding the problem of uniformity of the test results.
[0034] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A light intensity test structure for LED metal tubes, characterized by: The invention comprises a test photoelectric module (1), a light receiving hole groove (2), a first diffusion hole (3) and a second diffusion hole (4); the light receiving hole groove (2) is arranged in the test photoelectric module (1), and the LED metal tube is matched and embedded in the light receiving hole groove (2), so that there is no gap between the LED metal tube and the light receiving hole groove (2); the upper end of the first diffusion hole (3) is connected to the lower end of the light receiving hole groove (2), and the upper end of the second diffusion hole (4) is connected to the lower end of the first diffusion hole (3); the first diffusion hole (3) is larger than the light receiving hole groove (2), and the second diffusion hole (4) is larger than the first diffusion hole (3), so as to form a light diffusion channel; and a photosensitive chip is arranged at the bottom of the second diffusion hole (4).
2. The light intensity test structure for LED metal tube according to claim 1 is characterized in that: The first diffusion hole (3) comprises a diffusion surface (31) and a diffusion sheet (32); the diffusion surface (31) is a conical structure that is narrow at the top and wide at the bottom; the diameter of the upper end of the diffusion surface (31) is consistent with the diameter of the light receiving hole groove (2); and a plurality of diffusion sheets (32) are arranged around the lower end of the diffusion surface (31) and between the second diffusion hole (4).
3. The light intensity test structure for LED metal tube according to claim 2 is characterized in that: The light receiving hole groove (2) is a cylindrical structure.
4. The light intensity test structure for LED metal tube according to claim 2, characterized in that: The plurality of diffusion sheets (32) are arranged in a cylindrical shape, and the diameter of the cylinder formed by the plurality of diffusion sheets (32) is greater than the diameter of the lower end of the diffusion surface (31).
5. The light intensity test structure for LED metal tube according to claim 2, characterized in that: The second diffusion hole (4) is a rectangular structure, and the length of the short side of the rectangular structure is greater than the diameter of the cylinder formed by the plurality of diffusion sheets (32), so that the vertical projections of the plurality of diffusion sheets (32) are located within the range of the second diffusion hole (4).
6. The light intensity test structure for LED metal tube according to claim 1, characterized in that: The test photoelectric module (1), the light receiving hole groove (2), the first diffusion hole (3) and the second diffusion hole (4) are an integrally formed structure.