07021797 is referenced by 133 patents and cites 113 patents.

An optical device is for spatially displacing the output of a light-emitting diode (LED) and coupling the output to a predominantly spherical emission pattern produced at a useftul height above the LED. The device is made of a transparent dielectric material, such as an injection-molded plastic. It comprises a lower transfer section that receives the LED's light from below and an upper ejector section that receives the transferred light and spreads it spherically. One or more LEDs. are optically coupled to the bottom of the transfer section, which operates by total internal reflection upon their entire hemispherical emission. One embodiment operates as a flashlight-bulb substitute with the ejector section radiating onto a parabolic reflector, which forms the beam. Thus hemisphencally emitting LEDs can be used in parabolic-mirror flashlights wherein these LEDs by themselves may be unsuitable for that role.

Title
Optical device for repositioning and redistributing an LEDs light
Application Number
10/461557
Publication Number
7021797 (B2)
Application Date
June 12, 2003
Publication Date
April 4, 2006
Inventor
Waqidi Falicoff
Newport Beach
CA, US
William A Parkyn Jr
Lomita
CA, US
Pablo Benitez
Madrid
ES
Juan C Mi overscore
Madrid
ES
Agent
Sinsheimer Schiebelhut & Baggett
Thomas F Lebens
Assignee
Light Prescriptions Innovators
CA, US
IPC
G02B 6/10
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