星点法观测光学系统像差的教学仪器研制  

Development of teaching instruments for observation optical system aberration based on star test

作　　者：何艳艳[1] 王英[1] 周海[1] 杨春华[1] 

机构地区：[1]华中科技大学光学与电子信息学院,湖北武汉430074

出　　处：《实验技术与管理》2015年第5期82-85,89,共5页Experimental Technology and Management

基　　金：华中科技大学2012年度实验技术研究项目"星点法观测光学系统像差的研究"

摘　　要：传统的星点法进行像差的测量是采用显微镜进行的。其缺点是不方便观察,不能存储与记录,不利于教学评估。讨论了星点法观测光学系统像差的原理与方法;采用CCD数字摄像机代替显微镜,LED灯代替传统的氙灯,搭建了一套星点法测量像差的装置,检测了光学系统的球差以及轴外点像差,并定量测量了光学系统的位置色差。采用该装置还可以灵敏地检验光学系统中各组元的共轴性。该装置可通过计算机显示结果,多人同时进行观察结果,并且能存储或打印图片,有利于进行教学评估。The traditional star test method to test optical aberration is performed using a microscope. The drawback is inconvenient in observation, image storage and recording, teaching evaluation and so on. The principle and method of using star test to observe optical aberration are discussed. Using CCD digital camera instead of microscope and using LED lamp instead of the traditional xenon lamp, an instrument to observe optical aberration is built. Through this new instrument, the spherical aberration and the off axis aberrations are detected,and the chromatism of position is measured. The device may also be used to detect sensitively the coaxiality of the optical components. The testing results can be displayed by the computer, be observed at the same time by many people,and be stored and printed. This is quite helpful for teachers＇ teaching evaluation.

关 键 词：像差 星点法 CCD数字摄像机 教学仪器 

分 类 号：TH741[机械工程—光学工程]