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. 26, 1977
Filed:
Nov. 11, 1975
Applicant:
Inventor:
Masaki Matsubara, Hachiouji, JA;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
3501 / ; 350216 ;
Abstract
A high magnification microscope objective having a very large numerical aperture which comprises a first positive lens component, a second positive lens component, a third cemented lens component having positive refractive power, a fourth positive lens component and a fifth cemented lens component, and wherein chromatic aberration, curvature of field, etc. are favorably corrected.