07239449 is referenced by 41 patents and cites 7 patents.

The invention relates to an illumination module for color display, preferably for use in data or video projectors as well as rear projection television sets, in which the light from at least three luminescent diodes (LEDs) or LED arrays of the base colors red, green and blue is collimated at a point provided for connection to a display unit and ranged on an optical axis of the illumination module. An LED or an LED array of a base color with a beam path (Lr) oriented in the direction of the display unit is arranged on the optical axis of the illumination module. For the purpose of color mixing, the LEDs and LED arrays of the other base colors are attached in such a way tat their beam paths (Lg, Lb) are laterally input in sequence under input angles (α, β) of <90 degrees into the beam path (Lr) of the first base color.

Title
Illumination module for color display
Application Number
10/938121
Publication Number
7239449 (B2)
Application Date
September 10, 2004
Publication Date
July 3, 2007
Inventor
Uwe Detlef Zeitner
Weimar
DE
Peter Schreiber
Jena
DE
Ralf Waldhäusl
Jena
DE
Armin Leitel
Jena
DE
Agent
Patterson Thuente Skaar & Christensen P A
Assignee
Sypro Optics
DE
IPC
G03B 21/00
G02B 27/14
G02B 27/10
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