基于哈特曼-夏克传感器的人眼像差测量仪误差分析  

Error Analysis of Ocular Aberration Measurement Instrument Based on Hartmann-Shack Wavefront Sensor

作　　者：徐安成[1,2] 陈家璧[1] 张培茗[3] 

机构地区：[1]上海理工大学光电信息与计算机工程学院生物医学光学与视光学研究所,上海2000932 [2]常州工学院光电工程学院,江苏常州213002 [3]上海医疗器械高等专科学校,上海200093

出　　处：《激光与光电子学进展》2010年第8期108-114,共7页Laser & Optoelectronics Progress

基　　金：国家973计划(2007CB935303);国家自然科学基金(60778031);高等学校博士学科点专项科研基金(20050252004);上海市研究生创新基金(JWCXSL0901);江苏省高校自然科学研究项目(09KJD140001)资助课题

摘　　要：人眼是一个不完善的成像系统,不仅存在离焦和散光,还存在着球差、彗差以及不规则的高阶像差。这些像差影响视网膜的成像质量,尤其在暗视场弱光下人眼呈现大瞳孔,像差更大,使人眼的视觉性能远远低于衍射极限。近年来,人眼波前像差的测量技术得到不断发展,应用于人眼波前像差测量的仪器也不断更新,而在人眼波前像差测量中,基于哈特曼-夏克(HS)波前传感器的测量仪器较为多数。因此着重论述哈特曼-夏克波前传感器的误差分析,并提出人眼波前像差测量需要解决的问题的新思路。The human eye is an imperfect refractive system which has not only defocus and astigmatism,but also spherical aberration,coma and anomalistic high-order aberration,all of which have influence on the imaging quality of retina.What′s worse,aberration is further enlarged as a result of mydriasis in dark field and weak light,thus making the vision performance of human eyes far below diffraction limitation.In recent years,the measuring technology of wavefront aberration of human eyes has got constant development,and the advanced measuring instruments for measurement of ocular aberration appeared soon after.The measurement instruments based on Hartmann-Shack（HS） sensor are very popular.The errors analysis of the measuring instrument based on Hartmann-Shack wavefront sensor is introduced.Then the new way to solve this problem is put forward.

关 键 词：传感器 哈特曼-夏克传感器 波前像差 误差分析 

分 类 号：TP212.3[自动化与计算机技术—检测技术与自动化装置]