08075147 is referenced by 40 patents and cites 196 patents.

An optical device for coupling the luminous output of a light-emitting diode (LED) to a predominantly spherical pattern comprises a transfer section that receives the LED's light within it and an ejector positioned adjacent the transfer section to receive light from the transfer section and spread the light generally spherically. A base of the transfer section is optically aligned and/or coupled to the LED so that the LED's light enters the transfer section. The transfer section can comprises a compound elliptic concentrator operating via total internal reflection. The ejector section can have a variety of shapes, and can have diffusive features on its surface as well, including a phosphor coating. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.

Title
Optical device for LED-based lamp
Application Number
12/210096
Publication Number
8075147 (B2)
Application Date
September 12, 2008
Publication Date
December 13, 2011
Inventor
Roberto Alvarez
Glendale
CA, US
Oliver Dross
Madrid
ES
Yupin Sun
Yorba Linda
CA, US
Fernando Munoz
Madrid
ES
Waqidi Falicoff
Newport Beach
CA, US
William A Parkyn Jr
Lomita
CA, US
Pablo Benitez
Madrid
ES
Juan Carlos Minano
Madrid
ES
Julio Cesar Chaves
Madrid
ES
Agent
Drinker Biddle & Reath
Assignee
Light Prescriptions Innovators
CA, US
IPC
F21V 7/04
F21V 9/16
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