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Optical projection system and method

  • US 20050180030A1
  • Filed: 02/18/2004
  • Published: 08/18/2005
  • Est. Priority Date: 02/05/2004
  • Status: Active Grant
First Claim
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1. An optical projection system, comprising:

  • a light source, to provide a parallel light beam;

    a first color splitter, to split the parallel light beam into a first primary color beam and a color mixing beam, wherein the color mixing beam includes a second primary color beam and a third primary color beam;

    a first both-side telecentric group, implemented after the first color splitter and on a first light path of the first primary color beam, so as to produce a first light beam;

    a second both-side telecentric group, implemented after the first color splitter and on a second light path of the color mixing beam;

    a second color splitter, disposed at a position, so as to split the color mixing beam into a second light beam and a third light beam; and

    a mixing and projection unit, receiving the first light beam, the second light beam, and the third light beam to combine and project.

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