MTF MEASUREMENT OF TV ZOOM LENSES - INFLUENCE OF DISTORTION ON EQUIVALENCE OF NORMAL AND INVERSE CONJUGATE TECHNIQUES

被引：1

作者：

TAKEDA, M ^{[1
]}

TAKESI, K ^{[1
]}

机构：

[1] CANON INC,3302 SHIMOMARUKO,OHTA KU,TOKYO 144,JAPAN

来源：

APPLIED OPTICS | 1978年 / 17卷 / 14期

关键词：

D O I：

10.1364/AO.17.002171

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Influence of distortion is studied with regard to the equivalence of the normal and inverse conjugate techniques used in the measurement of MTFs of TV zoom lenses. The two techniques can be regarded as practically equivalent only when the local magnification (as distinguished from the conventional paraxial magnification) is utilized in frequency conversion needed in the inverse conjugate technique. A sample TV zoom lens is presented as a numerical example which supports the results of the discussion. A simple method is proposed for determining the local magnification simultaneously in the process of the MTF measurement. © 1978 Optical Society of America.

引用

页码：2171 / 2175

页数：5