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:
Jun. 09, 1998
Filed:
Dec. 15, 1995
Applicant:
Inventor:
Toshinobu Yamaguchi, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348363 ; 348484 ;
Abstract
An image pickup apparatus includes a first diaphragm having a variable numerical aperture, and a second diaphragm having a fixed numerical aperture. A light-reducing member is disposed on a moving portion of the first diaphragm. The light-reducing member can be inserted in or retracted from the optical path of the second disphragm by operating the first diaphragm when the second diaphragm is being used.
Quick Actions:
Yamaguchi, Toshinobu. (1998). Image pickup apparatus having a diaphragm and a high-resolution diaphragm (U.S. Patent No. 5764292). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5764292
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile