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Broad gamut color display apparatus using an electromechanical grating device

  • US 6,802,613 B2
  • Filed: 10/16/2002
  • Issued: 10/12/2004
  • Est. Priority Date: 10/16/2002
  • Status: Expired due to Fees
First Claim
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1. An imaging apparatus having an expanded color gamut defined by more than three vertex colors for forming a color image on a display surface, comprising:

  • (a) a light source including at least one dichroic combiner for transmitting a first vertex color and reflecting a second vertex color toward a color combining element that directs, along an illumination axis, a colored illumination beam having, at any one time, any one of at least four different vertex colors;

    (b) a linear array of electromechanical grating devices for receiving the colored illumination beam along the illumination axis;

    (c) an obstructing element for blocking a zeroth order light beam reflected from the linear array of electromechanical grating devices from reaching the display surface;

    (d) a projection lens cooperating with a scanning element for directing at least one diffracted light beam from the linear array of electromechanical grating devices toward the display surface, thereby forming a line image of the linear array on the display surface; and

    (e) a logic control processor for controlling timing of the light source and for providing image data to the linear array of electromechanical grating devices.

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