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:
Mar. 21, 1978
Filed:
Jan. 19, 1977
Applicant:
Inventors:
Kunio Ando, Omiya, JA;
Toshiro Yamauchi, Omiya, JA;
Seiji Toyama, Omiya, JA;
Haruo Kakizawa, Omiya, JA;
Assignee:
Fuji Photo Optical Co., Ltd., Omiya, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 55 ; 358223 ; 358217 ;
Abstract
An optical color-separation system for use in a color television camera having an image plane compensating lens associated with each of three camera tubes. Each compensating lens is provided with a diffusing area lying on the periphery thereof so as to be out of the image forming optical path. Photo-diodes are provided in opposing relation to the diffusing area. Light from the photo-diodes passes through the diffusion area to provide bias light for the camera tube.