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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.:

US 12490922 B1

PDFFull Text
Date of Patent:
Dec. 09, 2025

Filed:

Jul. 13, 2021

Photodetection system

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Kazuhiro Morimoto, Kanagawa, JP;

Daiki Shirahige, Kanagawa, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Canon U.S.A., Inc. IP Division

Primary Examiner:

Marjan Fardanesh

Int. Cl.
CPC ...
A61B 5/1455 (2006.01); A61B 5/026 (2006.01); A61B 5/145 (2006.01); G01N 21/41 (2006.01); G01N 33/49 (2006.01); H10F 30/225 (2025.01);
U.S. Cl.
CPC ...
A61B 5/1455 (2013.01); A61B 5/0261 (2013.01); A61B 5/14532 (2013.01); G01N 21/4133 (2013.01); G01N 33/492 (2013.01); H10F 30/225 (2025.01);
Abstract

A system includes a light source configured to emit pulsed laser light, and a photodetection unit including a plurality of photoelectric conversion units arranged in a two-dimensional plane, wherein an emission timing of the light source and a detection timing of the photodetection unit are controlled by a timing control unit, wherein the photodetection unit detects scattered light on the two-dimensional plane, of the pulsed laser light emitted from the light source and entering an object, and wherein change of a refractive index of the object is estimated from change of light speed of the scattered light.

Find Patent Forward Citations

Morimoto, Kazuhiro. (2025). Photodetection system (U.S. Patent No. 12490922). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12490922

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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