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:
Apr. 14, 1987
Filed:
Jan. 04, 1985
Fumikazu Nagano, Yamatokoriyama, JP;
Toshio Urakawa, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A color-picture analyzing apparatus includes a blue, green, and red-purpose lamps, preferably, fluorescent lamps; a sharp-cut filter in front of the red-purpose lamp for solely passing the red radiation; an infrared-cut filter interposed between a document having a color-picture to be analyzed and a reading sensor for cutting an infrared zone radiation; a first circuit for continuously switching on the green lamps; and a second circuit for alternatively switching on the blue and the red-purpose lamps. The red-purpose lamp can provide wide radiations covering the red spectral zone. It may be a cool white fluorescent lamp having a short afterglow time.