Testing aspheric surfaces: simple method with a circular stop

被引：3
|
作者：
Handojo, A
Frankena, HJ
机构：
[1] Bandung Inst Technol, Dept Engn Phys, Bandung 40132, Indonesia
[2] Delft Univ Technol, Dept Appl Phys, NL-2628 CJ Delft, Netherlands
来源：
APPLIED OPTICS | 1998年 / 37卷 / 25期
关键词：
D O I：
10.1364/AO.37.005969
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
As an extension of the knife-edge test, a noninterferometric method for inspecting circularly symmetric aspheres is proposed in which the test surface is illuminated by a spherical wave. When a small circular stop is placed around the curvature center of the best-fitting sphere, only rays characteristic for the deviation from a perfect sphere remain unobstructed. An image of the tested surface is thereby obtained, showing light and dark regions whose boundaries are correlated to the surface profile, the stop size, and the stop position along the symmetry axis. The experiment has been carried out with a paraboloid. (C) 1998 Optical Society of America.
引用
收藏
页码：5969 / 5973
页数：5
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