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:
Dec. 02, 2025

Filed:

Apr. 23, 2021
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;

Inventors:

Takahiro Matsukubo, Iwata, JP;

Takeshi Arai, Iwata, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/25 (2006.01);
U.S. Cl.
CPC ...
G01B 11/2518 (2013.01); G01B 11/2531 (2013.01);
Abstract

A measurement device includes an imager, a first projector to project a linear first measurement light beam onto a measurement target from a direction inclined at a first angle, and a second projector to project a linear second measurement light beam onto the measurement target from a direction inclined at a second angle. The measurement device further includes a controller configured or programmed to remove reflected light noise based on the first measurement light beam and the second measurement light beam projected onto the measurement target and imaged by the imager and acquire height information of the measurement target.


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