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Speckle reduction for display system with electromechanical grating

  • US 7,119,936 B2
  • Filed: 12/15/2004
  • Issued: 10/10/2006
  • Est. Priority Date: 12/15/2004
  • Status: Expired due to Fees
First Claim
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1. A display system with reduced speckle, comprising:

  • a) a light source providing an illumination beam;

    b) a linear light modulator comprising at least one linear array of light modulating devices for forming a modulated beam, the modulated beam comprising a plurality of orders of diffracted light from the illumination beam;

    c) an obstructing element for blocking a zeroeth order reflected light from the modulated beam;

    d) an angle-transforming optical assembly for anamorphically conditioning the modulated beam;

    e) a scanning element for scanning the modulated beam toward a display surface for forming a two-dimensional image thereon.

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