Topographical camera operable by applying a grid-generated Moire

Details Topographical camera operable by applying a grid-generated Moire Topographical camera operable by applying a grid-generated Moire

1989-05-03

1990-07-03

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250237G, 356374, H01J 4014, G01B 1114

Patent

active

049393804

ABSTRACT:
A camera for recording the topography of a specimen surface by generation of a Moire image with the aid of an object grid applied on the object, and which includes a CCD sensor with a reference grid (8) which is applied as a physical grid structure directly on the light incidence surface (4) of the CCD sensor.

REFERENCES:
patent: 3932775 (1976-01-01), Kosonocky
patent: 4272196 (1981-06-01), Indebetouw
patent: 4539598 (1985-09-01), Dietrich et al.
patent: 4543601 (1985-09-01), Harada et al.
patent: 4676596 (1987-01-01), Kato et al.
Optics and Laser Technology, vol. 16, No. 6, Dec. 1984, pp. 315-319, Buttorth & Co. (Publishers) Ltd., Guildford, Surrey, GB; G. T. Reid et al.
Applied Optics, vol. 24, No. 11, June 1, 1985, pp. 1565-1566, New York, U.S.
Optics Communications, vol. 34, No. 2 of Aug. 1980, pp. 167-170, Amsterdam, NL, Lohmann and Lu Po-Shiang "Computer Generated Moire".

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