摘要
杂光是评价光学系统成象质量的重要指标之一 黑斑法是测试杂光的普遍采用的技术 本文提出一种用双光束平衡式差动电路测量杂光的方法 计算和测试证明了这种方法的测试精度高达 1 0
The veiling glare of an optical system is the major specification for opprasing its imaging quality.Black-spot method for testing the veiling glare is a currently comon-used technique.In the letter,the method is put forwerd that is the method of comparing the two beams from a same source of light,using a bridge diffrential circuit.It is proved that the testing precision is as high as 10 4 by the calculation and experiments.
出处
《松辽学刊（自然科学版）》
1998年第4期34-36,共3页
Songliao Journal (Natural Science Edition)
关键词
杂光
黑斑法
差动电路
测试
光学系统
veiling glare black-spot mothod diffrential circuit
