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:
Jun. 25, 2002
Filed:
Apr. 14, 2000
Toshihiro Omi, Kanagawa, JP;
Mitutoyo Corporation, Kawasaki, JP;
Abstract
An optical encoder includes a reflective scale and a sensor head . The sensor head comprises a lead frame ; and LED chip mounted on the lead frame and having a light-emitting surface directing upward for irradiating the scale ; a photosensitive device chip mounted on the lead frame and having a photosensitive surface directing downward for receiving a reflected light from the scale ; and a transparent resin body molded for sealing the LED chip and the photosensitive device chip therein. A convex is formed on a surface, which faces on the light-emitting surface of the LED chip , of the transparent resin body . A reflective film is formed over the convex
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile