James W Webster

US Patent:

8231257, Jul 31, 2012

Filed:

Jun 10, 2009

Appl. No.:

12/482294

Inventors:

Jonathan C. Griffiths - Fremont CA, US
Gaurav Sethi - Dublin CA, US
James R. Webster - San Jose CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

F21V 7/04
H01J 9/00

US Classification:

362605, 362602, 362558, 362619, 362625

Abstract:

Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source such that light from the light source is input into at least one edge of the panel and guided therein, and a plurality of light extraction dots disposed on the planar back surface, the plurality of light extraction dots configured to reflect light incident on the planar back surface and extract light from the light source propagating in the panel through the planar front surface.

US Patent:

8439546, May 14, 2013

Filed:

May 23, 2012

Appl. No.:

13/479149

Inventors:

Jonathan C Griffiths - Fremont CA, US
Gaurav Sethi - Dublin CA, US
James R Webster - San Jose CA, US

Assignee:

Qualcomm MEMS Technologies, Inc. - San Diego CA

International Classification:

F21V 7/04

US Classification:

362605, 362618, 362619, 362624, 362625

Abstract:

Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source such that light from the light source is input into at least one edge of the panel and guided therein, and a plurality of light extraction dots disposed on the planar back surface, the plurality of light extraction dots configured to reflect light incident on the planar back surface and extract light from the light source propagating in the panel through the planar front surface.

US Patent:

20120230053, Sep 13, 2012

Filed:

May 23, 2012

Appl. No.:

13/479090

Inventors:

Jonathan C. Griffiths - Fremont CA, US
Gaurav Sethi - Dublin CA, US
James R. Webster - San Jose CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

F21V 7/04
B23P 17/04

US Classification:

362605, 29428

Abstract:

Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source such that light from the light source is input into at least one edge of the panel and guided therein, and a plurality of light extraction dots disposed on the planar back surface, the plurality of light extraction dots configured to reflect light incident on the planar back surface and extract light from the light source propagating in the panel through the planar front surface.

US Patent:

20130314312, Nov 28, 2013

Filed:

May 24, 2012

Appl. No.:

13/480377

Inventors:

Russell Wayne Gruhlke - Milpitas CA, US
Ying Zhou - San Jose CA, US
Khurshid Syed Alam - Mountain View CA, US
John Michael Wyrwas - Berkeley CA, US
Ron Lee Feldman - Campbell CA, US
Kollengode Subramanian Narayanan - Cupertino CA, US
James Randolph Webster - San Jose CA, US

Assignee:

QUALCOMM MEMS Technologies, Inc. - San Diego CA

International Classification:

G09G 5/00

US Classification:

345156

Abstract:

This disclosure relates to an interactive display, having a front surface including a viewing area, and providing an input/output interface for a user of an electronic device. A planar light guide (PLG) disposed substantially parallel to the front surface, has a periphery at least coextensive with the viewing area. A light-emitting source (LES), disposed outside the periphery of the PLG, is optically coupled with a PLG input. The PLG outputs reflected light, in a direction substantially orthogonal to the front surface, by reflecting light received from the LES. A light collecting device (LCD) collects scattered light that results from interaction of the reflected light with a user-controlled object. The LCD redirects the collected scattered light toward one or more light sensors. A processor recognizes, from outputs of the light sensors, an instance of a user gesture, and controls the interactive display and/or electronic device, responsive to the user gesture.