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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 10184808 B1

PDFFull Text
Date of Patent:
Jan. 22, 2019

Filed:

Apr. 21, 2017

Encoder and robot having an optical scale with a polarizing portion

Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Hiroto Tomioka, Chino, JP;

Tetsuo Nishida, Suwa, JP;

Assignee:

Seiko Epson Corporation, , JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Que T Le

Int. Cl.
CPC ...
G01D 5/347 (2006.01); B25J 13/08 (2006.01); G01D 5/34 (2006.01); H01S 5/026 (2006.01); H01S 5/183 (2006.01); H01S 5/042 (2006.01); H01S 5/343 (2006.01); H01S 5/42 (2006.01);
U.S. Cl.
CPC ...
G01D 5/3473 (2013.01); B25J 13/088 (2013.01); G01D 5/345 (2013.01); H01S 5/0264 (2013.01); H01S 5/18311 (2013.01); H01S 5/18355 (2013.01); H01S 5/0425 (2013.01); H01S 5/34313 (2013.01); H01S 5/423 (2013.01); H01S 2301/176 (2013.01);
Abstract

An encoder includes an optical scale that is so provided as to be pivotable around a pivotal axis and includes a polarizing portion having a polarization characteristic, a light outputting portion that outputs linearly polarized light toward the polarizing portion, and a light detecting portion that detects the linearly polarized light from the optical scale. The light outputting portion includes a vertical cavity surface emitting laser, and light emitted from the vertical cavity surface emitting laser spreads at an angle greater than or equal to 5° but smaller than or equal to 20°.

Find Patent Forward Citations

Tomioka, Hiroto. (2019). Encoder and robot having an optical scale with a polarizing portion (U.S. Patent No. 10184808). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10184808

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

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