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. 14, 1983
Filed:
Mar. 26, 1980
Applicant:
Inventors:
Assignee:
Minolta Camera Co., Ltd., Sakai, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350423 ; 354224 ;
Abstract
An optical system for a viewfinder camera is provided. The objective lens system is divided into at least two separate lens groups. The first lens group provides an insufficient correction to aberration while the second lens group is designed specifically to correct the aberration transmitted through the first lens group. The complimentary viewfinder system is also likewise designed to correct the same aberration as the second lens group.