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:
Feb. 03, 1976
Filed:
Mar. 11, 1974
Applicant:
Inventor:
Toshinobu Ogura, Tondabayashi, JA;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350216 ;
Abstract
A retrofocus type objective lens system consists of five lenses, from the object side, a front first lens, a biconvex second lens, a biconcave third lens, a positive meniscus fourth lens having a rear convex surface, and a positive fifth lens, the system satisfying the following conditions: