- 著者
-
中島 一敏
谷川 英夫
松浦 茂
- 出版者
- The Optical Society of Japan An Affiliate of Japan Society of Applied Physics
- 雑誌
- 光学 (ISSN:03896625)
- 巻号頁・発行日
- vol.10, no.3, pp.174-183, 1981
A common-path interferometer with a modified zone plate for testing aspheric optical elements is given. The interferometer described here is the generalization of a conventional Fresnel zone plate interferometer developed by Smartt and is suited to test aspheric refracting elements as well as reflecting ones. Formulas to compute modified zone plates, especially for the conic sections of revolution, are presented. Error analysis for the setting of the zone plate is given and the inter ference pattern in the presence of three dimensional displacement of the zone plate is discussed. It is pointed out that one can set the zone plate by making use of the interferogram itself and thus test the performance of the elements easily. Some experimental examples are presented.