Method and apparatus for comparing the color of a standard color

Details Method and apparatus for comparing the color of a standard color Method and apparatus for comparing the color of a standard color

1976-04-26

1977-08-23

Evans, F. L.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

350 30, 350 96B, G01J 352

Patent

active

040436756

ABSTRACT:
The color of a standard color is displayed adjacent a sample for direct comparison of the color of the sample with the color of the standard color by a method and apparatus comprising a color standard, a light source for supplying a uniform beam of light of a desired composition and intensity, means for receiving light from the light source and projecting the light onto the color standard, means for receiving light reflected from the color standard and transmitting the reflected light to a display means, and a display means for displaying the reflected light adjacent the sample to permit direct comparison of the color of the light reflected from the color standard with the color of the sample.

REFERENCES:
patent: 2184750 (1939-12-01), Meinhardt et al.
patent: 2510145 (1950-06-01), Short
patent: 2953963 (1960-09-01), Bulkley et al.
patent: 3068742 (1962-12-01), Hicks, Jr. et al.
patent: 3436157 (1969-04-01), Adler et al.
patent: 3463595 (1969-08-01), Blanc et al.
patent: 3609045 (1971-09-01), Stein

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