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Proceedings Paper

Technique of recording and judging the sign of tilt in one interferogram
Author(s): Koji Tenjimbayashi
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Paper Abstract

How to record and judge the sign of tilt, that is the sign of configuration error, in one interferogram where the fringes are frozen is presented. If a flat surface is tested by a Twyman-Green interferometer without an imaging lens, not only usual straight and equally spaced fringes but also the extra curved fringes are caused. We can judge the sign of tilt by knowing which direction the extra fringes are curved. The application of this technique to a lateral shearing interferometer is also shown.

Paper Details

Date Published: 2 August 1995
PDF: 9 pages
Proc. SPIE 2576, International Conference on Optical Fabrication and Testing, (2 August 1995); doi: 10.1117/12.215594
Show Author Affiliations
Koji Tenjimbayashi, Mechanical Engineering Lab. (Japan)

Published in SPIE Proceedings Vol. 2576:
International Conference on Optical Fabrication and Testing
Toshio Kasai, Editor(s)

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