渐变焦眼镜片表面象散分布测量  

The Measurement of the Astigmatism Distribution or a Progressive Spectacle Lens

作　　者：史大椿[1] 贺莉清[1] 

机构地区：[1]上海理工大学,上海200093

出　　处：《光学仪器》1997年第2期17-20,共4页Optical Instruments

摘　　要：描述了渐变焦眼镜片的非旋转轴对称非球面表面象散分布测呈，介绍了用泰曼一格林干涉仪和横向剪切干涉议的测量原理和方法，并将这两种仪器的测量结果进行了比较。The measuring method of the astigmatism distribution of a progressive specta-cle lens are described in this paper. This lens has an axisymmetrical non-revolving asphericalsurface. The principal and the experimental set-up using the Twyman-Green interferometerand the lateral shearing interferometer for measuring the astigmatism distribution are intro-duced, and these two interferometric methods are compared.

关 键 词：非球面 象散分布 干涉测量法 渐变焦 眼镜片 

分 类 号：R778.3[医药卫生—眼科]