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:
Sep. 17, 2019
Filed:
Oct. 16, 2017
Mitutoyo Corporation, Kawasaki, Kanagawa, JP;
MITUTOYO CORPORATION, Kawasaki, JP;
Abstract
Provided are a light source device that can achieve higher accuracy while maintaining reliability by reducing stray light, and a photoelectric encoder including the same. A light source deviceincludes a translucent memberconfigured to accommodate a light emitting unitthereinside, and to make light emitted from the light emitting unitinto parallel light. The translucent memberincludes an optical axis planean orthogonal planea reflection portion configured to make light from the light emitting unitinto parallel light, and a connection portionformed by the optical axis planeand the orthogonal planeconnecting to each other, and having a curved surface. A central axis AX of the curved surface is in an outside region of the translucent memberand a region between the optical axis planeand the orthogonal plane