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:
Oct. 27, 2015
Filed:
Aug. 22, 2011
Colin Campbell, Motherwell, GB;
Hazel Mcinnes, Dunfermline, GB;
Jeffrey Raynor, Edinburgh, GB;
Mathieu Reigneau, Amilly, FR;
Colin Campbell, Motherwell, GB;
Hazel McInnes, Dunfermline, GB;
Jeffrey Raynor, Edinburgh, GB;
Mathieu Reigneau, Amilly, FR;
STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, Marlow Bucks, GB;
Abstract
An optical navigation device may include an image sensor with an imaging surface, a laser, and an optical waveguide layer having an exposed user surface and a total internal reflection (TIR) surface on the underside of the exposed user surface. The waveguide layer, the laser, and the image sensor may be together arranged to direct radiation emitted by the laser onto the imaging surface at least partly by total internal reflection by the TIR surface.