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.

Date of Patent:
Jul. 11, 2017

Filed:

Aug. 31, 2015
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Shoichi Yamazaki, Yokohama, JP;

Kazuhiro Matsumoto, Yokohama, JP;

Nobuhiro Tomatsu, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/14 (2006.01); A61B 3/12 (2006.01); A61B 3/00 (2006.01); A61B 3/117 (2006.01); G02B 27/14 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
A61B 3/12 (2013.01); A61B 3/0091 (2013.01); A61B 3/117 (2013.01); A61B 3/14 (2013.01); G02B 27/141 (2013.01); G02B 27/0025 (2013.01);
Abstract

Provided is an ophthalmologic apparatus including one dichroic mirror, which is arranged eccentrically with respect to an optical axis of light from an eye to be inspected to separate the light from the eye to be inspected; another dichroic mirror, which is configured to separate light separated by the one dichroic mirror by being transmitted through the one dichroic mirror; and a positive lens, which is configured to guide the light from the eye to be inspected to the one dichroic mirror as convergent light, and to guide the light from the eye to be inspected to the another dichroic mirror as divergent light, wherein an eccentric section of the one dichroic mirror and an eccentric section of the another dichroic mirror have a positional relationship of being substantially perpendicular to each other and having substantially the same eccentric amount, to thereby correct astigmatism.


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