Color information detecting device

Details Color information detecting device Color information detecting device

1989-03-20

1990-10-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356407, G01J 350

Patent

active

049654497

ABSTRACT:
In a colorimetric sensor having a plurality of color sensors each of which is composed of a photo-electric conversion element for converting light into an electrical signal and a color filter added to the photo-electric conversion element for transmitting light of a specific wave length region, each of the color sensors is composed of a plurality of polygonally split pieces radially extending and spreading from a central part of the colorimetric sensor. A color sensor of a relatively low sensitivity has a greater number of split pieces than others. Among these color sensors, a color sensor having the lowest sensitivity has its split pieces either partially or totally disposed in a position covering two sides of an angular corner part of the colorimetric sensor.

REFERENCES:
patent: 4414635 (1983-11-01), Gast et al.
patent: 4547074 (1985-10-01), Hinoda et al.
patent: 4633300 (1986-12-01), Sakai
patent: 4646161 (1987-02-01), Tsuchiya et al.
patent: 4823185 (1989-04-01), Miyamoto et al.

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