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. 28, 1981
Filed:
Aug. 13, 1979
Applicant:
Inventor:
Shuji Ogino, Osaka, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350444 ;
Abstract
A compact catadioptric lens system with a widened field angle is disclosed and characterized in that the axial distance L between the main-mirror element (M.sub.1) and the sub-mirror element (M.sub.2) fulfills the following condition in relation to the diagonal length D of the rectangular focal plane on which the image is projected:
Ogino, Shuji. (1981). Catadioptric lens system (U.S. Patent No. 4264136). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4264136
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile