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:
Oct. 19, 1982
Filed:
Sep. 15, 1980
Applicant:
Inventor:
Shin'ichi Mihara, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350464 ;
Abstract
An attachment lens system having favorably corrected various aberrations, especially curvature of field, comprising a front lens group and a rear lens group: said first lens group consisting of a negative meniscus lens component, a second biconvex lens component and a third biconcave lens component, and said rear lens group consisting of a fourth biconvex lens component, a fifth positive meniscus lens component and a sixth biconcave lens component.