Title: High effect, illumination apparatus and image projecting arrangement having it
Application Number: 95194085 Application Date: 1995.05.31
Publication Number: 1152960 Publication Date: 1997.06.25
Approval Pub. Date: 2000.05.03 Granted Pub. Date: 2000.05.03
International Classifi-cation: G02B27/18;G02B27/28;H04N9/31
Applicant(s) Name: Philips Electronics N.V. Address:
Inventor(s) Name: A. H. J. Vandenbrante
Attorney & Agent: DONG WEI
Abstract:
    An illumination device for supplying a beam of linearly polarized light having a non-rotationally symmetrical cross-section at the location of an object to be illuminated is described, which device comprises a light source, a reflector, an optical integrator for forming said beam cross-section and for realizing a uniform light distribution across the beam cross-section, and a polarizing system for converting the light supplied by the source into linearly polarized light. Since the polarizing system is arranged in the radiation path in front of the optical integrator, the device can be implemented with a small number of components and in a compact manner. The device may be used to great advantage in an image projection apparatus.
Time: 9
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