US Patent 7699517 Light emitting diode based surface lighting device

Patent 7699517 was granted and assigned to Foxsemicon Integrated Technology on April, 2010 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Foxsemicon Integrated Technology

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7699517

Date of Patent

April 20, 2010

Patent Application Number

11965773

Date Filed

December 28, 2007

Patent Primary Examiner

‌

Sandra L. O'Shea

Patent abstract

An LED surface lighting device (100) comprises a plurality of LED light source modules (120) assembled together side-by-side. Each of the LED light source modules comprises a light guiding plate (122) and at least one LED (124). The light guiding plate comprises a light emitting surface (1222) and a plurality of lateral sides (1225, 1227) adjacent to the light emitting surface. At least one of the lateral sides defines a groove (123) for receiving the at least one LED. The groove keeps a predetermined distance (D) from the light emitting surface.