摘要
本文分析了数字式摄影验光仪的光学原理 ,探讨了明暗过渡区的生成机理 ,对近视眼眼瞳像进行了数字模拟和实验比较 。
The optical principle of the digital photorefraction instrument was analyzed and the mechanism how to form the transition region from brightness to shade was discussed.Digital simulation and experiment comparison for pupil images of myopia were done.Furthermore,it has been discussed that the vertical coordinates of upper edge of shade region in pupil image were replaced in the oxyopter equation by the abscissa of inflexion of light intensity curve.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2002年第2期135-140,共6页
Chinese Journal of Scientific Instrument
基金
上海市高等学校科学技术发展基金 (99K0 6)项目
