06871993 is referenced by 140 patents and cites 19 patents.

A system for focusing light on an illumination area. The system includes a reflector having a focusing reflective surface and a focal region and an LED array having a plurality of LEDs located within the focal region. Each of the plurality of LEDs in the LED array is positioned to emit light toward the focusing reflective surface. The focusing reflective surface reflects light from each of the plurality of LEDs of the LED array toward the illumination area.

Title
Integrating LED illumination system for machine vision systems
Application Number
10/186798
Publication Number
6871993 (B2)
Application Date
July 1, 2002
Publication Date
March 29, 2005
Inventor
Kurt Hecht
Hartsville
PA, US
Agent
Volpe and Koenig P C
Assignee
Accu Sort Systems
PA, US
IPC
F21V 007/04
View Original Source