基于莫尔条纹偏折技术的多焦点镜片检测技术研究  

Research on the Measurement of Progressive Addition Lenses ' Power Based on Moiré Deflection Technology

作　　者：侯英龙[1] 张学典[1] 董世琨[1] 常敏[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院、上海市现代光学系统重点实验室,上海200093

出　　处：《激光杂志》2014年第1期5-7,共3页Laser Journal

基　　金：上海市研究生创新基金项目;国家973项目(项目编号:2010CB327800);国家科技支撑项目(编号:2011BAF06B01;2012B AI23B00)

摘　　要：基于莫尔条纹偏折原理,本文提出多点检测多焦点镜片的方法。为了提高镜片屈光度的检测精度,本系统在光路中引入了空间滤波器,在算法上采用了八邻域处理方法,测量精度达到了5%。为了验证本设计方案,设计了实验系统进行验证,利用CCD摄像机对图像进行采集,并用MATLAB对图像进行处理,检测多焦点镜片屈光度,最后对多焦点镜片进行了实际测量。通过实验验证,结果表明本系统及检测方法有很好的效果。A new method about progressive addition lenses＇ power detection based on the moir~ deflection tech- nology is proposed. In order to improve the detection accuracy, a spatial filter was added into the optical path and an algorithm named eight-neighborhood was used in the system. In the designed experimental program, we useda CCD camera to capture the image, and the MATLAB to process images. Finally, a progressive addition lens was de- tected and the results show that the present system and the detection method have a good effect.

关 键 词：屈光度 莫尔条纹 多焦点镜片 检测 图像处理 MAT LAB 

分 类 号：TN244.8[电子电信—物理电子学]