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OPTICAL ELEMENT

  • US 20080144179A1
  • Filed: 10/03/2007
  • Published: 06/19/2008
  • Est. Priority Date: 10/23/2006
  • Status: Abandoned Application
First Claim
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1. An optical element comprising:

  • a microlouver including transparent layers and light absorbing layers alternately disposed, the light absorbing layers constraining the extent of the direction in which the light passing through the transparent layers exits; and

    a diffusion layer provided on the microlouver,wherein the angle of the field of view of the light passing thorough the optical element changes in such a way that the angle of the field of view is smaller in the peripheral area of the optical element than that in the central area of the optical element.

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