Optics: measuring and testing – By shade or color – With reflective multicolor chart or standard
Patent
1989-02-28
1991-01-01
Evans, F. L.
Optics: measuring and testing
By shade or color
With reflective multicolor chart or standard
356 42, G01J 352
Patent
active
049813617
ABSTRACT:
A color comparison device uses a rotatable color sample-bonding wheel to hold a sticker containing a plurality of color shades for matching with a color of a test portion of a test stick as the wheel rotates. At least one recess is formed in a part of the sticker bonding surface of the wheel to permit access to an edge of the sticker to facilitate its removal from the wheel.
REFERENCES:
patent: 3009388 (1961-11-01), Polanyi
patent: 4682891 (1987-07-01), de Macario et al.
patent: 4871258 (1989-10-01), Herpichboehm et al.
Kobayashi Toshiyuki
Makita Shigeru
Ota Hiroyuki
Evans F. L.
Omron Tataesi Electronics Co.
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