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:
Apr. 29, 2014
Filed:
Jul. 19, 2011
Susumu Makinouchi, Zama, JP;
Akihiro Watanabe, Sendai, JP;
Toru Imai, Natori, JP;
Nikon Corporation, Tokyo, JP;
Abstract
An encoder includes: a light modulation section which modulates at least a portion of light that is emitted from a light source; a moving member which has an incidence plane, on which a plurality of light beams of the light incident, and is relatively movable in at least one direction; and at least two light receiving sections which respectively receive interference fringes that are generated in at least two regions on the moving member, wherein the light enters into the moving member such that at least two interference fringes move in opposite directions on the moving member in accordance with a modulation by the light modulation section.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile