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Light modulation element

  • US 20060238874A1
  • Filed: 06/13/2005
  • Published: 10/26/2006
  • Est. Priority Date: 04/22/2005
  • Status: Active Grant
First Claim
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1. An light modulation element, having a first optical surface and a second optical surface for receiving an incident light, the light modulation element comprising:

  • at least a transparent diffusion unit, for diffusing the incident light, each being formed on the first optical surface; and

    at least a transparent collimation unit, for collimating the incident light, each being superposed on the diffusion unit.

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