Color test meter

Details Color test meter Color test meter

1988-04-29

1989-10-03

Evans, F. L.

Optics: measuring and testing

By shade or color

With reflective multicolor chart or standard

356 42, 356423, 36441309, G01J 352

Patent

active

048712582

ABSTRACT:
A colorimeter comprises a case, a liquid crystal display (LCD) mounted on the case, a color chart provided on the case to permit holding of a specimen to be compared in close proximity to the color chart, and switches for indicating which color on the color chart the color of the specimen most closely approximates. Each switch is located adjacent a color on the color chart, and the states of the switches drive the LCD to display a reading corresponding to the color on the color chart which most closely approximates the color of the specimen.

REFERENCES:
patent: 2523758 (1950-09-01), Gould
patent: 4461829 (1984-07-01), Greenquist
patent: 4509859 (1985-04-01), Markart et al.
patent: 4523852 (1985-06-01), Bauer

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