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:
Jan. 22, 2013
Filed:
Sep. 01, 2009
Kasra Khazeni, San Jose, CA (US);
Manish Kothari, Cupertino, CA (US);
Gang Xu, Cupertino, CA (US);
Ion Bita, San Jose, CA (US);
Kollengode S. Narayanan, Cupertino, CA (US);
Kasra Khazeni, San Jose, CA (US);
Manish Kothari, Cupertino, CA (US);
Gang Xu, Cupertino, CA (US);
Ion Bita, San Jose, CA (US);
Kollengode S. Narayanan, Cupertino, CA (US);
Qualcomm Mems Technologies, Inc., San Diego, CA (US);
Abstract
A light guide device includes a light guide body and two or more pluralities of spaced-apart slits. The slits are formed by undercuts in the light guide body. Sidewalls of the slits form facets that redirect light impinging on the facets. In some embodiments, the light guide body is attached to a light source. The light source emits light that is injected into the light guide body and the slits redirect the light out of the light guide body and towards a desired target. In some embodiments, the target is a display and a first plurality of slits directs light from the light source across the light guide body and over the face of the display. A second plurality of slits then directs light out of the light guide body and towards the display.