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A kind of LED testing device and light picking device

A technology for testing devices and optical devices, which is applied in the direction of measuring devices, testing optical performance, optical instrument testing, etc., can solve problems such as LED light intensity errors, and achieve the effect of accurate light intensity and high reliability

Active Publication Date: 2019-03-01
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the actual measurement process, there may be errors in the LED light intensity measured by the above three test methods

Method used

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  • A kind of LED testing device and light picking device
  • A kind of LED testing device and light picking device
  • A kind of LED testing device and light picking device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] The preferred embodiments of the invention will be further described in detail below.

[0025] Such as Figures 1 to 6 As shown, the LED test device 1 of an embodiment includes a lifting drive device 21, a rotary drive device 22, an integrating sphere 11 and an integrating sphere tilt angle adjustment component 12, and the rotary driving device 22 is used to drive the integrating sphere 11 Rotate to align the LED 31 under test, the lifting drive device 21 is used to drive the integrating sphere 11 to approach and cover the LED 31 under test, and away from the LED 31 under test. The integrating sphere 11 can be made of high temperature resistant material.

[0026] Normally, a plurality of tested LEDs 31 are fixed on the LED fixing plate 3. Due to other reasons such as installation, it is difficult to ensure that the position of the LED fixing plate 3 is horizontal, and the angle of the LED fixing plate 3 after each disassembly and installation It may also be different....

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PUM

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Abstract

The present invention discloses an LED test device and a light taking device. The light taking device comprise an integrating sphere and an integrating sphere inclination angle adjusting component; the integrating sphere is used for covering a tested LED; and the integrating sphere inclination angle adjusting component is used for adjusting the inclination angle of the integrating sphere so that the integrating sphere can cover the tested LED. According to the LED test device and the light taking device, the inclination angle of the integrating sphere can be adjusted, so that the integrating sphere can cover the tested LED as much as possible, and therefore, the light intensity of the tested LED can be more accurate, and the reliability of the tested LED is higher.

Description

【Technical field】 [0001] The invention relates to an LED testing device and a light-taking device. 【Background technique】 [0002] Patent documents CN102967446B, CN102967447B and CN102967448B all disclose a LED performance test box, a calibration method and a performance test method, which can continuously detect the light intensity, junction temperature, light efficiency and other parameters in the aging process of the LED chip in real time, and realize the LED chip Automated online life aging test. [0003] However, in the actual measurement process, there may be errors in the LED light intensity measured by the above three test methods. 【Content of invention】 [0004] In order to overcome the deficiencies of the prior art, the present invention provides an LED testing device and a light-taking device to improve the accuracy of measured LED light intensity. [0005] A light-taking device for an LED testing device, comprising an integrating sphere and an integrating sph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/26G01M11/02
CPCG01M11/00G01R31/2601
Inventor 曹鸣皋刘岩胡益民周霖敬刚
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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