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:
May. 05, 2026

Filed:

Feb. 09, 2023
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Hiroto Kano, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 3/113 (2006.01); A61B 3/00 (2006.01); A61B 3/14 (2006.01); G02B 13/00 (2006.01); G02B 27/00 (2006.01); G06T 7/70 (2017.01); A61B 3/12 (2006.01);
U.S. Cl.
CPC ...
A61B 3/113 (2013.01); A61B 3/0008 (2013.01); A61B 3/14 (2013.01); G02B 13/0065 (2013.01); G02B 27/0093 (2013.01); G06T 7/70 (2017.01); A61B 3/12 (2013.01);
Abstract

An optical system is configured to guide light from a light source to a first target and a second target, and to guide first reflected light from the first target and second reflected light from the second target to an image sensor. The optical system includes a first optical element having a conical surface. An intermediate image is formed between the first optical element and each of the first target and the second target. The first reflected light and the second reflected light are guided to an imaging plane of the image sensor such that at least part of the first reflected light and part of the second reflected light overlap each other on the imaging plane.


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