偏心摄影视力筛查设备光学系统设计

Design of Optical System for Eccentric Photography Sight Detecting Device

为了消除偏心摄影验光设备测量人眼屈光度的误差,使拍摄的人眼照片更清晰,对偏心摄影视力筛查设备的成像光学系统进行了设计。该镜头工作距离为1000 mm,总长为51.4554 mm,系统焦距为46.7 mm,F数为2.8。通过优化设计后该系统的最大畸变小于0.3%,很好地校正了球差、场曲和畸变。该偏心摄影成像光学系统结构具有简单、紧凑,且成像质量良好等特点,可以满足偏心摄影验光设备的成像要求。

To achieve the purpose of reducing errors in the measurement of the refraction of the human eye by eccentric photographic optometry and to produce clearer photographs of the human eyes,the imaging system of the device was designed.The working distance of the lens is 1000 mm,the focal length of the system is 46.7 mm,the total length is 51.4554 mm,and the F-number is 2.8.After optimization,the maximum optical system distortion is not greater than 0.3%,and the spherical aberration,field curvature,and distortion are well corrected.The imaging lens has the characteristics of simple,compact,and fine quality,which accords the demand of eccentric photographic optometry equipment.