A Holographic Interferometer Using An Oil Surface As A Reference Plane

K. Matsuda; H. Shimazutsu

doi:10.1117/12.967286

1 January 1987 A Holographic Interferometer Using An Oil Surface As A Reference Plane

K. Matsuda, H. Shimazutsu

Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967286
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada

Abstract

When the measurement of a surface flatness over a large circular area of an object is made with interferometers, it is imperative to use a highly polished large surface area as a reflecting reference plane. However, supplying such a plane is a difficult thing. To overcome this difficulty, an oil surface on the object to be studied has been used as its reference plane. In this method, the object under investigation was completely immersed in a tilted container filled with oil, and thus the arrangement of a Fizeautype interferometer was able to produce the interference fringes between two beams; one reflecting from the oil and the other from the object surface 1).

Citation Download Citation

K. Matsuda and H. Shimazutsu "A Holographic Interferometer Using An Oil Surface As A Reference Plane", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967286

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