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. 16, 1985
Filed:
Dec. 21, 1982
Applicant:
Inventor:
Shinsuke Komoto, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350423 ; 350429 ; 350448 ; 35419513 ;
Abstract
A reflex zoom lens assembly includes a reflection optical system in which the full-aperture F number varies with focal length. A zoom ring of the assembly includes an aperture scale correlated to the focal length.
Komoto, Shinsuke. (1985). Reflex zoom lens having aperture scale (U.S. Patent No. 4511221). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4511221
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile