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Spatial Light Modulator Using Electrowetting Cells

  • US 20100232000A1
  • Filed: 10/17/2008
  • Published: 09/16/2010
  • Est. Priority Date: 10/19/2007
  • Status: Active Grant
First Claim
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1. A spatial light modulator for modulating light field amplitude comprising a surface relief grating adapted to act as a diffractive lens, where a material is used to fill at least one groove of a surface grating structure, such that a controllable refractive index of the material inside the surface relief grating is controlled by an electric field, which leads to a controllable intensity at a fixed focal point.

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