Light emitting diode based light source emitting collimated light

US7112916B2 · kind B2 · utility

Inventors

• Kee Siang Goh · Bukit Mertajam, MY
• Boon K. Lee · Leander, US
• Yee Loong Chin · Batu Gajah, MY
• Gurbir Singh · Gig Harbor, US

Key dates

• Filing date: Oct 9, 2002
• Grant date: Sep 26, 2006
• Expiry date: Apr 21, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S362/80

Abstract

A light emitting diode, a reflector and a platform are employed within a light source. The light emitting diode emits light exclusively from its side surfaces. The reflector has a parabolic reflective surface that collimates any portion of the light reflecting from the parabolic reflective surface. The platform supports a centering of the light emitting layer(s) of the light emitting diode on a focus point of the parabolic reflective surface.