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:
Dec. 08, 2020
Filed:
Jul. 03, 2019
Mitutoyo Corporation, Kanagawa, JP;
Akihide Kimura, Saitama, JP;
MITUTOYO CORPORATION, Kawasaki, JP;
Abstract
The present invention provides an optical angle sensor capable of detecting a wide range of angles with high resolution, having no scale, and specifying a reference angle. The optical angle sensor includes a light source for irradiating light, a reflection means for rotating around a predetermined axis as a measurement axis and reflecting the light irradiated from the light source, a light receiving means for receiving the light irradiated from the light source, and a calculation means for calculating the light received by the light receiving means as a signal. The light receiving means receives the light irradiated from the light source through the reflection means. The calculation means includes a specifying means for specifying the reference angle based on the light received by the light receiving means, and an angle calculating unit for calculating an absolute angle based on the light received by the light receiving means and the reference angle specified by the specifying means.