LED光源参数的微机自动检测  

Automatic measuring system for the parameters of LED light

作　　者：刘金清[1] 黄宇升[1] 

机构地区：[1]福建师范大学物理与光电信息科技学院,福州350007

出　　处：《电子测量技术》2008年第10期108-111,共4页Electronic Measurement Technology

基　　金：国家自然科学基金项目(10575022);福建省教育厅资助项目(JB07040)

摘　　要：本文介绍微型计算机自动控制技术及光电转换技术在LED光源参数的自动检测中的应用。利用微型计算机接口技术、光电转换技术,由微机控制步进电机,步进电机带动单色仪,在可见光（380-780nm）范围内逐点扫描得到对应于各波长位置的相对光强度分布值。然后通过比较法确定待测LED光源相对光谱能量分布,根据色度学原理及CIE关于色度计算方面的有关推荐文件由微机计算出光通量、光效、色坐标,从而计算出LED光源参数,实现对LED光源的色温、显色指数、色坐标等光参数的微机自动检测,解决了人们利用手工测量很难实现对LED光源的色温、显色指数、色座标等光参数的有效检测的难题。LED light is a kind of new light now. Measurement of the parameters of LED light is very important. The application of personal computer control technique for automatic measurement of LED light was introduced. By using the interfacing technique of personal computer and optical-electric conversion technology, controlling step motor, which is used to drive monochromator, to scan light in the scope of visible light （380-780nm）point to point, the distribution value of luminous intensity in correspondence with each wavelength location can be obtained. Then the color temperature and color rendering index of LED light are measured automatically by computer.

关 键 词：LED光源参数 显色指数 微机 自动测量 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]