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:
Sep. 18, 2012
Filed:
Aug. 17, 2010
Manabu Wada, Kawasaki, JP;
Motoya Takai, Negareyama, JP;
Manabu Wada, Kawasaki, JP;
Motoya Takai, Negareyama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A fundus image is displayed, which enables accurate positioning and focusing to be easily performed with respect to an eye to be examined even on a small display unit by selecting a display magnification. At a first display magnification, an opening portion 'm' of a mask specifying a predetermined angle of field of the fundus is displayed with no part missed in both of horizontal and vertical directions of a display unit. At a second display magnification, the opening 'm' of the mask is displayed with no part missed in the horizontal direction in the display area of the display unitand with some part missed in the vertical direction. Thus, the second display magnification is used to observe an essential part when the fundus is accurately observed.