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PROJECTION OPTICAL SYSTEM AND PROJECTION DISPLAY UNIT USING THE SAME

  • US 20100321596A1
  • Filed: 03/06/2008
  • Published: 12/23/2010
  • Est. Priority Date: 03/06/2008
  • Status: Abandoned Application
First Claim
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1. A projection optical system comprising:

  • a light source;

    an optical waveguide into which light from the light source enters and from which the light exits as reflected light;

    a diffuser diffusing light that has exited from the optical waveguide;

    a prism sheet into which light diffused by the diffuser enters and in which prisms are arranged on one plane; and

    a rod integrator into which light transmitted through the prism sheet enters.

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