Technique of recording and judging the sign of tilt in one interferogram

Koji Tenjimbayashi

doi:10.1117/12.215594

2 August 1995 Technique of recording and judging the sign of tilt in one interferogram

Koji Tenjimbayashi

Proceedings Volume 2576, International Conference on Optical Fabrication and Testing; (1995) https://doi.org/10.1117/12.215594
Event: International Conferences on Optical Fabrication and Testing and Applications of Optical Holography, 1995, Tokyo, Japan

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.

Citation Download Citation

Koji Tenjimbayashi "Technique of recording and judging the sign of tilt in one interferogram", Proc. SPIE 2576, International Conference on Optical Fabrication and Testing, (2 August 1995); https://doi.org/10.1117/12.215594

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