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. 01, 1998
Filed:
Nov. 21, 1996
Nobuyoshi Kishida, Utsunomiya, JP;
Toshikazu Tamura, Utsunomiya, JP;
Canon Kabushiki Kaisha, , US;
Abstract
This specification discloses an eye fundus blood flow meter having a blood flow measuring system for measuring the blood flow of the fundus of an eye to be examined, and a malfunction detecting unit for detecting measurement malfunction occurring during the measurement by the blood flow measuring system. The specification also discloses an eye fundus tracking apparatus for tracking a predetermined position on the fundus of an eye to be examined having a tracking mechanism for tracking a predetermined position on the eye to be examined, an abnormality detecting system for detecting the operational abnormality of the tracking mechanism, and a control unit for executing predetermined control on the tracking mechanism when the operational abnormality occurs.