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:
Dec. 17, 1985
Filed:
Sep. 16, 1983
Applicant:
Inventor:
Kazuo Nunokawa, Tokyo, JP;
Assignee:
Tokyo Kogaku Kikai Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ; B03B / ;
U.S. Cl.
CPC ...
351206 ; 354 62 ;
Abstract
A variable image magnification eye fundus camera has an illuminating system in which there are provided an annular aperture (7a, 7b) in a position optically conjugate with the iris (R) of the eye (E) to be inspected, and means (7, 12) for adjusting in accordance with the angle of view the diameter of the image of the annular aperture formed by the illuminating system at the iris, whereby it is possible to make a clear photograph of the eye fundus even if the diameter of the pupil is relatively reduced.
Nunokawa, Kazuo. (1985). Variable image magnification eye fundus camera (U.S. Patent No. 4558932). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4558932
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile