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Light beam polarization converter

  • US 20030169503A1
  • Filed: 12/17/2002
  • Published: 09/11/2003
  • Est. Priority Date: 01/19/2001
  • Status: Abandoned Application
First Claim
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1. A light beam polarization converter for converting an illumination light source having a plurality of polarization states into a polarization light source, comprising:

  • an under plate having undulated lower and upper surfaces in conjugate to each other for converging and parallelizing the light beams respectively;

    a substrate having an upper surface and a ridged lower surface disposed on the under plate;

    a phase retardation film of high reflectivity disposed partially on the ridged lower surface of the substrate; and

    a polarization splitting film disposed on the substrate, providing transmission of predetermined polarization states and reflection of predetermined polarization states of the illumination light source.

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