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COMPACT HOLOGRAPHIC ILLUMINATION DEVICE

  • US 20100284180A1
  • Filed: 10/27/2006
  • Published: 11/11/2010
  • Est. Priority Date: 11/11/2005
  • Status: Active Grant
First Claim
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1. An illumination device comprising in series:

  • first and second light sources;

    a condenser lens; and

    a grating device,wherein said grating device comprises at least one Bragg grating;

    a light input port and a light output port,wherein said condenser lens directs light from said first and second sources into said input port at first and second incidence angles respectively,wherein said grating device is operative to diffract light from said first and second sources out of said output port into a common direction.

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