Method of and apparatus for analyzing interference fringes

Details Method of and apparatus for analyzing interference fringes Method of and apparatus for analyzing interference fringes

1987-08-31

1989-07-18

Willis, Davis L.

Optics: measuring and testing

By particle light scattering

With photocell detection

364525, G01B 9021

Patent

active

048489077

ABSTRACT:
A method of analyzing interference fringes for use in a holographic interferometry process for measuring, by using a computer generated hologram, the shape of an object to be examined. The method comprises:

REFERENCES:
patent: 3642374 (1972-02-01), Matsumoto et al.
patent: 4396289 (1983-08-01), Fantone
A. Ono et al., "Aspherical Mirror Testing Using a CGH with Small Errors" (Applied Optics vol. 24, No. 4, Feb. 1985).
Yatagai et al., "Interferometric Testing with Computer-Generated Holograms: Aberation Balancing Method and Error Analysis" Applied Optics., vol. 17, No. 4, pp. 558-565, 2/78.
Emmel et al., "A New Instrument for Routine Optical Testing of General Aspherics", Proc. SPIE, vol. 171, pp. 93-99, 1979.
MacGovern et al., "Computer Generated Holograms for Testing Optical Elements" Applied Optics, vol. 10, No. 3, pp. 619-624, 3/71.
B. Dorband et al., "Testing Aspheric Surface with Computer-Generated Holograms: Analysis of Adjustment and Shape Errors" (Applied Optics vol. 24, No. 6, Aug. 1985).
E. K. Hussmann, "A Holographic Interferometer for Measuring Radiation Energy Deposition Profiles in Transparent Liquids" (Applied Optics vol. 10, No. 1, Jan. 1971).

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