Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-08-13
1992-05-26
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
25022723, 356405, G01J 350, H05J 516
Patent
active
051171015
ABSTRACT:
A color recognition system which illuminates a test surface through the use of a source light and fiber optic cables. The light transmitted to the test surface is reflected into a light pipe and then transmitted through fiber optic cables to a first plurality of color filtered photo detectors. The photo detectors produce quantitative color component values for the tested surface. Light is also transmitted directly from the source light through fiber optic cables to a second plurality of color filtered photo detectors. The second plurality of photo detectors produce quantitative color component values for the light source. The values produced from the first plurality of photo detectors are then adjusted with respect to the values produced from the second plurality of photo detectors.
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Elmerick Donald V.
Moore Richard D.
Peters Richard K.
Lee John R.
Nelms David C.
Technostics Corporation
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