Dual-wave-front computer-generated holograms for quasi-absolute testing of aspherics

被引：31

作者：

Beyerlein, M ^{[1
]}

Lindlein, N ^{[1
]}

Schwider, J ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Lehrstuhl Opt, Inst Phys, D-91058 Erlangen, Germany

来源：

APPLIED OPTICS | 2002年 / 41卷 / 13期

关键词：

D O I：

10.1364/AO.41.002440

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Testing of aspherics by means of computer-generated holograms (CGHs) is well known. To perform a quasi-absolute test of rotationally symmetric aspheric surfaces, two wave fronts must be encoded in the CGH. Both the null lens and a spherical lens have to be stored. This enables successive measurements of the aspheric and of a cat's-eye position without changing the object arm of the interferometer. Two possibilities for encoding both wave fronts have been investigated. A first-order approximation for estimating the influence of disturbing diffraction orders is given. (C) 2002 Optical Society of America.

引用

页码：2440 / 2447

页数：8

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