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. 25, 1993
Filed:
Oct. 21, 1991
Applicant:
Inventor:
Eiichi Sano, Tokyo, JP;
Assignee:
Kabushiki Kaisha Topcon, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
351206 ; 351205 ; 351221 ;
Abstract
A fundus camera having an illuminating optical system is provided with illuminating diaphragms for non-fluorescent photography and fluorescent photography. The illuminating diaphragm for non-fluorescent photography and the illuminating diaphragms for fluorescent photography respectively have light transmitting regions of different surface areas.