Reference corrected color sensor

Details Reference corrected color sensor Reference corrected color sensor

1987-12-10

1989-12-12

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

Trichromatic examination

356319, 356425, 356448, G01N 2127, G01J 346

Patent

active

048863661

ABSTRACT:
A color sensor comprising a plurality of detecting units. One of the detecting units may inspect the color of an object to be examined, and the other may inspect the color of the reference object simultaneously and independently. The reflected light of the object to be examined is corrected by the reflected light of the reference object. The lights reflected from the object to be examined and the reference object are derived from the same light source.

REFERENCES:
patent: 3562539 (1971-02-01), Beroza et al.
patent: 4152075 (1979-05-01), Rellstab et al.
patent: 4278353 (1981-07-01), Ostermayer, Jr.
patent: 4568186 (1986-02-01), Yoshimura et al.
Jacobowitz et al., "Determining Reflectometer Head Correction Factors" IBM Tech Disc. Bulletin, vol. 19 #6, pp. 2174-2175, Nov. 1976. copy 356/448.

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