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:
Jan. 13, 2015
Filed:
Oct. 16, 2013
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Tomoyuki Ikegami, Hiratsuka, JP;
Assignee:
Canon Kabushiki Kaisha, Toyko, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/10 (2006.01); A61B 3/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ophthalmologic apparatus includes a projection optical system configured to project a light flux on a subject's eye, a beam splitting member configured to form a split optical path corresponding to a light flux from a subject's eye, and an image-forming optical system configured to receive via the beam splitting member a light flux from the subject's eye, the image-forming optical system including an optical element having an optical characteristic that reduces astigmatism generated by the beam splitting member.