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:
Jul. 11, 1978
Filed:
Feb. 24, 1976
Applicant:
Inventors:
Saburo Nobutoki, Mobara, JP;
Yukio Okano, Osaka, JP;
Assignees:
Hitachi, Ltd., BOTH OF, JP;
Minolta Camera Co., Ltd., BOTH OF, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 44 ; 358 55 ;
Abstract
An optical image pickup system for reducing spurious color signals generated in an image pickup system including a stripe-shaped color separation or color encoding filter, wherein a double refraction plate and a diffraction grating spatial frequency filter are arranged serially in an optical path to maintain a high resolution power in the luminance band and at the same time present a sufficient reduction of the spurious color signal.