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:
Mar. 17, 2015
Filed:
May. 27, 2010
Ion Bita, San Jose, CA (US);
Sapna Patel, San Jose, CA (US);
Clayton Ka Tsun Chan, San Jose, CA (US);
Suryaprakash Ganti, San Jose, CA (US);
Brian W. Arbuckle, San Jose, CA (US);
Ion Bita, San Jose, CA (US);
Sapna Patel, San Jose, CA (US);
Clayton Ka Tsun Chan, San Jose, CA (US);
SuryaPrakash Ganti, San Jose, CA (US);
Brian W. Arbuckle, San Jose, CA (US);
QUALCOMM MEMS Technologies, Inc., San Diego, CA (US);
Abstract
Illumination devices and methods of making same are disclosed. In one embodiment, an illumination apparatus includes a light source, a light guide having a planar first surface, a first end and a second end, and a length therebetween, the light guide positioned to receive light from the light source into the light guide first end, and the light guide configured such that light from the light source provided into the first end of the light guide propagates towards the second end, and a plurality of light turning features that are configured to reflect light propagating towards the second end of the light guide out of the planar first surface of the light guide, each light turning feature having a turning surface and an interferometric stack formed on the turning surface.