LED光源平均发光强度检测的影响因素分析

乔卫东; 方静; 刘康

doi:10.13433/j.cnki.1003-8728.2016.1023

LED光源平均发光强度检测的影响因素分析

doi: 10.13433/j.cnki.1003-8728.2016.1023

1.
西安理工大学机械与精密仪器工程学院, 西安 710048

基金项目:

国家质检总局科技计划项目（2013zjjz238）资助

详细信息

作者简介:
乔卫东(1969-),副教授,博士,研究方向为测试计量技术与仪器,qwd@xaut.edu.cn

计量
- 文章访问数: 162
- HTML全文浏览量: 22
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2015-01-16
- 刊出日期: 2016-10-05

Analysis of Influencing Factors on Gauging Accuracy of Average Luminous Intensity for Light Emitting Diode Light Source

1.
School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China

摘要

摘要: 以LED光度光色空间分布综合校准装置中平均发光强度的测量为对象展开研究。为提高检测精度，通过在远/近场条件下测量距离和LED安装角度偏差对平均发光强度影响的分析，对检测系统中距离、定位实现装置提出精度要求。系统中采用满足精度要求的位移台实现远/近场距离调节；以CCD采集LED轮廓图像，使用Hough变换和图像质心结合的方法对LED的安装进行准确定位，从而提高LED平均发光强度的测量精度，保证检测系统具有良好的可靠性和准确性。
- 发光二极管 /
- 远/近场 /
- 测量 /
- 定位 /
- CCD
Abstract: In this paper, an average luminous intensity of multiple calibration device for luminosity and light color spatial distribution of Light emitting diode (LED) is studied. In order to improve the gauging accuracy, the precision requirement of the distance and fixed position device in the gauging system is proposed through analyzing the effect of average luminous intensity by the measurement distance and the installation angle deviation of LED in the far/near field. The displacement platform that is able to meet accuracy requirements is used to realize the distance adjustment in far/near field; the profile image of LED is captured with charge-coupled device (CCD), the installation of LED is accurately positioned by using the Hough transform with image centroid method, therefore to improve the gauging accuracy of average luminous intensity for LED and to ensure the gauging system has good reliability.
- LED /
- far/near-field /
- measurement /
- location /
- CCD

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参考文献(14)

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