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LED light intensity distribution online test system

An online test and light intensity distribution technology, which is applied in the direction of lamp test, photometry, optical radiation measurement, etc., can solve the problems of experimental errors and the inability to test multiple LEDs at the same time, so as to reduce test errors and improve test efficiency.

Active Publication Date: 2021-06-01
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the inability to test multiple LEDs at the same time in the prior art, and there are experimental errors in the test, and provide an online test system for LED light intensity distribution. The technical solution is as follows:

Method used

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  • LED light intensity distribution online test system
  • LED light intensity distribution online test system
  • LED light intensity distribution online test system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like figure 1 As shown, the LED light intensity distribution online test system includes a fixed table 3, a motion mechanism 2 that drives the fixed table 3 to move, a casing 7 arranged above the fixed table 3, and a photometric detection assembly connected to the inner surface of the casing 7, and a device. Aging box 1 outside the test system;

[0039] like Figure 5 As shown, the photometric detection assembly includes: a photometric probe 74, a probe drive motor 73 and a probe drive slider 72, the photometric probe 74 is connected with the probe drive slider 72 through the probe drive motor 73, and the housing 7 is also provided with a probe drive slider 72. The groove 71 where the block 72 slides; the arrangement of the groove 71 enables the probe to drive the slider 72 to move along the groove 71 without falling from the casing 7 . The casing 7 is made of an opaque material to prevent light leakage during the test. Specifically, the probe driving slider 72 is a ...

Embodiment 2

[0061] like Figure 6 As shown, the LED light intensity distribution on-line test system includes a fixed table 3, a motion mechanism 2 that drives the fixed table 3 to move, a casing 7 arranged above the fixed table 3, and a photometric detection assembly connected to the inner surface of the casing 7, and a device. The aging box 1 outside the test system; the casing 7 is rotationally connected with the aging box 1 through the rotating mechanism 9; specifically, the upper part of the aging box 1 is a supporting plate 8, and the rotating mechanism 9 is placed on the supporting plate 8;

[0062] like Figure 9 As shown, the rotating mechanism 9 includes a support block 91 , a driving motor 92 and an output shaft 93 .

[0063] The supporting block 91 is placed on the supporting plate 8, and a driving motor 92 is arranged inside; the output shaft 93 is connected with the top circle center of the casing 7, and the casing 7 is driven to rotate by the driving motor 92.

[0064] li...

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Abstract

The invention discloses an on-line test system for LED light intensity distribution, which comprises a fixed table, a motion mechanism for driving the fixed table to move, a casing arranged above the fixed table, a photometric detection component connected to the inner surface of the casing, and a test system. The external aging box; the casing is rotatably connected with the aging box through a rotating mechanism. Photometric detection components include photometric probe, probe driving motor and probe driving slider. The circuit board of the LED chip is placed on the fixed table, and the probe drive motor rotates to make the probe drive slider slide along the groove, driving the photometric probe to move, and realizing the spatial light intensity distribution test of the LED chip under test. The motion mechanism includes an X-axis motion component and a Y-axis motion component, so that the fixed table can move forward, backward, left, and right. The present invention is also equipped with a transparent heat shield and a photometer, which realizes on-line testing of the light intensity distribution of LED chips at different positions on different types of circuit boards, improves testing efficiency, reduces testing errors, and prolongs the service life of photometric probes.

Description

technical field [0001] The invention relates to an online test system for LED light intensity distribution, belonging to the technical field of light intensity distribution test. Background technique [0002] In addition to traditional light sources such as incandescent lamps and fluorescent lamps, the fourth-generation light source light-emitting diodes have also appeared in the existing lighting sources. The light-emitting principle and characteristics of light-emitting diodes, as well as the structure and drive of lighting sources, are significantly different from traditional light sources. The various particularities of light-emitting diodes mean that when testing them for light source characteristics, it is necessary to use corresponding testing methods and techniques for their special light-emitting characteristics. However, the existing LED light source test methods still refer to the traditional light source test methods, and regard the LED as a single point light s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/04G01R31/44
CPCG01J1/0403G01R31/44
Inventor 刘杰樊嘉杰王平吴伟子
Owner HOHAI UNIV CHANGZHOU