The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2007
Filed:
Sep. 10, 2004
Armin Leitel, Jena, DE;
Ralf Waldhäusl, Jena, DE;
Peter Schreiber, Jena, DE;
Uwe Detlef Zeitner, Weimar, DE;
Armin Leitel, Jena, DE;
Ralf Waldhäusl, Jena, DE;
Peter Schreiber, Jena, DE;
Uwe Detlef Zeitner, Weimar, DE;
Sypro Optics GmbH, Jena, DE;
Abstract
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.