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.:

US 8857989 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 14, 2014

Filed:

May. 09, 2011
Applicant:

Tomoyuki Iwanaga, Yokohama, JP;

Inventor:

Tomoyuki Iwanaga, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/14 (2006.01);
U.S. Cl.
CPC ...
A61B 3/14 (2013.01);
Abstract

In an ophthalmic apparatus, reflected light from an eye to be examined, illuminated by an observation light source emitting continuous light, is split by a light splitting unit to enter an optical viewfinder, and a fundus image where an examiner can observe the fundus is provided by the optical viewfinder. An imaging unit sets the light quantity of the observation light source by using a moving image obtained by imaging the split and reflected light. After completing the setting of the light quantity, the imaging unit moves the light splitting unit from an optical axis, illuminates the fundus by driving the imaging light source, and obtains a still image.


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