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:
Dec. 01, 2015
Filed:
Apr. 12, 2012
Applicants:
Colin Campbell, Strathaven, GB;
Hazel Mcinnes, Dunfermline, GB;
Ewan Findlay, Dollar, GB;
Inventors:
Assignee:
STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED, Buckinghamshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06M 7/00 (2006.01); G06F 3/0354 (2013.01); G06F 3/042 (2006.01); H01L 25/16 (2006.01);
U.S. Cl.
CPC ...
G06F 3/03547 (2013.01); G06F 3/0421 (2013.01); H01L 25/167 (2013.01); H01L 2924/0002 (2013.01);
Abstract
An optical navigation device for use with mobile telephones and the like is disclosed, which has a reduced height as compared with current designs. The navigation device comprises a laser such as a VCSEL laser, an exposed user surface and two other surfaces that provide for total internal reflection of the incident laser beam. The surfaces are constructed with shallower than normal angles, preserving the basic functionality of the device while reducing the height.