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:
Apr. 27, 1993
Filed:
Aug. 24, 1992
Applicant:
Inventors:
Katsuya Ono, Tokyo, JP;
Akira Kikuchi, Kanagawa, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359434 ; 359708 ; 359716 ; 359784 ;
Abstract
An image transmission optical system wherein a lens unit serving for relaying an image for a unit relaying distance consists of two bar shaped cemented lens components, and each of said lens components consists of a bar-shaped lens element and two lens elements which are cemented to both the end surfaces of the bar-shaped lens element respectively of said bar-shaped lens element and have a refractive index higher than that of the bar-shaped lens element. This image transmission optical system comprises a small number of air-contact surfaces and has favorably corrected aberrations.