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:
Jul. 21, 1981
Filed:
Dec. 07, 1979
Applicant:
Inventor:
Ken-ichi Nakahashi, Hachiouji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350414 ; 350469 ;
Abstract
A plan achromat objective lens system designed for a magnification level on the order of 40.times. for use with microscopes comprising a first negative meniscus lens component, a second positive lens component, a third positive cemented doublet and a fourth positive cemented doublet, said objective lens system being so adapted as to correct various aberrations favorably with the small number of lens components.