基于传感器响应校正的阅读环境照度测量研究

摘要

设计实现了阅读环境光度测量装置.用Canon SC50HS相机、BENETECH—GM1020型数字式照度计、标准灰板进行光度测量和标定,编制了基于LuxLAB,OriginLab软件平台的计算机采集和数据处理等程序.结合高校阅读光照环境的质量检测和评价问题,提出了区域平均法、传感器响应两点校正法的测量方法,并对测量操作误差进行了分析和验证,因位置不准确造成的误差在-3%~3%之间,实际可控制在2%左右.进行了自然采光、人工照明等典型情况下照度测量和阅读光环境的照明效果实验.比照国际CIE阅读光度标准,结合实际测量和结果,进行了阅读光环境数据分析评价.在光度测量检测、阅读光照环境评价和改进等方面具有重要参考价值.%Measurement equipments for reading environment photometric measurement are designed and realized. Canon SC50HS,BENETECH—GM1020 numerical illuminometer,standard grey board are utilized for photometric measurement and calibration,programs for computer acquisition and data processing are compiled based on LuxLAB,OriginLab software platform.Aiming at problem of quality detection and evaluation of reading luminous environment in university,area average method,sensor response two-point correction method are proposed.The operation errors of measurement are analyzed and verified,errors due to incorrect positions is range of -3%~3%,and it can be controlled within 2% based on real operations.The illumination effects experiment of typical use scenarios of natural lighting and artificial illumination for photometric measurement and reading luminous environment are fulfilled.Compared with CIE reading luminous standard,combine with real measurement results, data of reading luminous environments are analyzed and evaluated.It has important reference value in Illumination measurement and detection,reading luminous environment evaluation and improvement.