The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 1987
Filed:
Apr. 07, 1986
Applicant:
Inventors:
Toshiyuki Nakazawa, Tokyo, JP;
Akio Izumi, Yokosuka, JP;
Assignee:
Fuji Electric Corporate Research and Development Co., Ltd., Yokosuka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
356416 ; 250226 ; 356419 ;
Abstract
A color discrimination method and sensor is provided for determining the color of a particular object. The sensor comprises a radiation source, focusing lenses, reflecting surfaces, sharp cut filters and a photodiode for spectral sensitivity. The photodiode detects the light and converts it into electrical signals that are delivered to an amplifier, which produces signals discriminated according to color. The system can detect light within an extended wavelength range of about 440 nm to 900 nm.