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LIGHT SOURCE APPARATUS AND PROJECTOR

  • US 20120229780A1
  • Filed: 03/06/2012
  • Published: 09/13/2012
  • Est. Priority Date: 03/07/2011
  • Status: Active Grant
First Claim
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1. A light source apparatus comprising:

  • a plurality of light sources which illuminate light of different wavelength bands and different luminous intensity distributions;

    groups of collective lenses which collect light from the plurality of light sources;

    a light guiding device which is disposed on an axis of light collected together from the plurality of light sources and is adapted to distribute uniformly the illuminance of the light collected from the plurality of light sources;

    a light guiding optical system which collects the light collected from the plurality of light sources to the same optical axis to illuminate the light on to an entrance port of the light guiding device;

    a diffuse plate wheel which is disposed at the entrance port of the light guiding device and which comprises a plurality of segments of different coefficients of diffusion which are arranged in a circumferential direction;

    a motor for rotating the diffuse plate wheel; and

    a light source control device which controls the rotation of the diffuse plate wheel in synchronism with the illumination of the plurality of light sources.

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