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:
Jan. 26, 1988
Filed:
Mar. 26, 1985
Applicant:
Inventor:
Akira Yokota, Tokyo, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
350464 ; 350414 ;
Abstract
An objective lens system for an endoscope comprising a first lens component arranged as a positive meniscus lens, a second lens component arranged as a biconvex lens, a third lens component arranged as a positive cemented doublet, a fourth lens component arranged as a positive cemented doublet, a fifth lens component arranged as a negative cemented doublet, and a sixth lens component arranged as a negative cemented doublet, the objective lens system for an endoscope being arranged that the magnification is high, i.e., 30X to 40X, and aberrations are corrected favorably.