Conjugate phase plate use in analysis of the frequency response of imaging systems designed for extended depth of field

被引：25
|
作者：
Ojeda-Castaneda, Jorge [2 ,3 ]
Landgrave, J. E. A. [1 ]
Gomez-Sarabia, Cristina M. [2 ]
机构：
[1] Ctr Invest Opt, Guanajuato 37000, Mexico
[2] Univ Guanajuato, Guanajuato 36730, Mexico
[3] Univ Valencia, Dept Opt, E-46100 Valencia, Spain
来源：
APPLIED OPTICS | 2008年 / 47卷 / 22期
关键词：
D O I：
10.1364/AO.47.000E99
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We unveil a relationship between generating a point spread function with a pair of conjugate phase elements and visualizing the modulation transfer function (MTF) of a single phase element for a variable focus error, at a tunable spatial frequency. We show that the defocused MTF of a pair of conjugate phase elements can be expressed as the modulus of the second order ambiguity function of a single phase element. Finally, we propose a tunable wavefront coding technique with a pair of quartic (4th power) conjugate phase elements. (C) 2008 Optical Society of America.
引用
收藏
页码：E99 / E105
页数：7
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