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人眼波前像差补偿系统的设计
The design of the compensation system of human eyes’wavefront aberration
【作者】 杨雪; 张培茗; 谢海明; 曹亮; 蒋捷; 陈家璧;
【Author】 Yang Xue~(1 2) Zhang Peiming~2 Xie Haiming~1 Cao Liang~2 Jiang Jie~2 Chen Jiabi~2 (1 College of medical instrument and food engineering; 2 College of Optical and Electronic Information Engineering University of Shanghai for Science and Technology Shanghai 200093 China)
【机构】 上海理工大学医疗器械与食品学院; 光学与电子信息工程学院;
【摘要】 本文设计了人眼波前像差测量补偿系统,该系统可对离焦量进行有效的矫正。重点分析了该补偿系统的原理,结构和工作流程。系统设计中使用32细分电路控制精密平移台的步进电机,通过计算机采集卡向细分电路发出脉冲信号,使用VB对采集卡进行编程实现平移台控制。对矫正离焦前后人眼像差测量的光斑点阵图和波前三维重构图进行了对比分析。
【Abstract】 In this paper a design of the compensate system of aberration measurement in the human eye,and the system can correct defocus.The principle,structure and progress of this work are discussed.In this system the engine of the workbench is controlled by 32 subdivision circuit.Impulses produced by the gather chip within the computer are transmitted to the controlling circuit,The program both controlling date gathering and workbench moving is programmed with the language VB.To rectified around being out of focus the human eye aberration survey facula lattice chart and the wavefront three dimensional restructuring chart has carried on the contrastive analysis.
【Key words】 Wavefront Aberration; Motorized Translation Stage; Defocus Compensation; Hartmann-Shack; Wave-front Sensor;
- 【会议录名称】 第六届全国信息获取与处理学术会议论文集(2)
- 【会议名称】第六届全国信息获取与处理学术会议
- 【会议时间】2008-08-06
- 【会议地点】中国河南焦作
- 【分类号】TH786
- 【主办单位】中国仪器仪表学会