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:
Sep. 18, 1979
Filed:
Jul. 26, 1977
Applicant:
Inventors:
Yoshitoshi Ito, Ohme, JP;
Noriaki Honma, Kokubunji, JP;
Katsumi Takami, Tokyo, JP;
Shusaku Nagahara, Kokubunji, JP;
Akira Hashimoto, Ohme, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358225 ; 350206 ; 358 93 ;
Abstract
In an optical system which is mounted on and used with an image pickup device for observing an object including a high brightness area therein, a pinhole is provided between the object and an imaging lens for separating the paths of the light rays from respective points of the object, and a filter which attenuates light from the high brightness area of the object which is separated by the pinhole.