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:
May. 17, 1983
Filed:
Mar. 05, 1981
Applicant:
Inventor:
Akio Taira, Hachioji, JP;
Assignee:
Olympus Optical Company Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250205 ; 350526 ;
Abstract
An apparatus for changing illumination optics is provided for use in a microscope including a plurality of illumination optics having different values of magnification. A photometric, light receiving element is disposed in a marginal area of an imaging surface of an objective lens, and an output from the photometric element is determined as the illumination optics are sequentially changed. A matching condition between the objective lens and the illumination optics is detected in accordance with the value determined, and that one of illumination optics is selected which represents the best match.