Screening device for LED as spaceborne calibration light source

YE Zhao; REN Jian-wei; LI Xian-sheng; LIU Ze-xun; QUAN Xian-rong; LIU Hong-xing

doi:10.3788/OPE.20122001.0064

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Screening device for LED as spaceborne calibration light source

Article | 更新时间：2020-08-12

- Screening device for LED as spaceborne calibration light source
- Optics and Precision Engineering Vol. 20, Issue 1, Pages: 64-71(2012)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20122001.0064
  CLC： V447.3;TN312.8
- Received：22 April 2011，
  
  Revised：02 June 2011，
  
  Published Online：25 January 2012，
  
  Published：25 January 2012
- 稿件说明：
移动端阅览
叶钊, 任建伟, 李宪圣, 刘则洵, 全先荣, 刘洪兴. 用于星上定标光源的LED筛选装置[J]. 光学精密工程, 2012,20(1): 64-71

YE Zhao, REN Jian-wei, LI Xian-sheng, LIU Ze-xun, QUAN Xian-rong, LIU Hong-xing. Screening device for LED as spaceborne calibration light source[J]. Editorial Office of Optics and Precision Engineering, 2012,20(1): 64-71
叶钊, 任建伟, 李宪圣, 刘则洵, 全先荣, 刘洪兴. 用于星上定标光源的LED筛选装置[J]. 光学精密工程, 2012,20(1): 64-71 DOI： 10.3788/OPE.20122001.0064.

YE Zhao, REN Jian-wei, LI Xian-sheng, LIU Ze-xun, QUAN Xian-rong, LIU Hong-xing. Screening device for LED as spaceborne calibration light source[J]. Editorial Office of Optics and Precision Engineering, 2012,20(1): 64-71 DOI： 10.3788/OPE.20122001.0064.

摘要

考虑将发光二极管(LED)用作空间相机星上定标光源时对LED的发光一致性和稳定性的要求

研究了对市售LED产品进行试验和筛选的方法。分析了影响LED发光效率的因素及LED作为星上定标光源需要注意的问题

提出了将多只LED作为空间相机星上定标光源的筛选试验方案

并设计、研制了筛选装置。为了检验LED的工作稳定性和不同LED的发光一致性

该装置可同时监测多只LED的发光状态

并实现了无人值守操控和自动测量。利用该装置对某批次72只随机抽取的白光LED进行测试并根据测试数据对被筛选的白光LED进行了分析计算

结果显示

经过筛选的白光LED在连续点亮900 h后

相对光强变化在1.5%左右。最后

从中筛选出符合光源要求的10只LED。

Abstract

According to the requirements of Light Emitting Diodes (LEDs) for consistency and reliability

when they were taken as a light source in spaceborne calibration

a screening experiment scheme using multiple LEDs as spaceborne calibration light source was proposed

and a screening device was developed. In order to test the working stability and the consistency of luminescence for the LEDs

this device could monitor and measure the luminous status of multiple LEDs automatically at the same time. Using this device

72 white LEDs which were randomly selected were tested. According to the analysis and calculation of the experimental data

the result shows that the change of the relative intensity is about 1.5% after those white LEDs are lighting for 900 h. Finally

10 desirable LEDs are screened depending on the requirements of the light source.

关键词

Keywords

references

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