Apparatus for homogeneously distributing lights

  • US 7,125,141 B2
  • Filed: 02/23/2004
  • Issued: 10/24/2006
  • Est. Priority Date: 12/12/2003
  • Status: Active Grant
First Claim
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1. An apparatus for homogeneously distributing lights, comprisinga single-layered light guide plate comprising an incidence surface and an emergence surface each of which defines a plurality of interlaced first areas and second areas, wherein each of the first areas is smaller than any of the second areas;

  • an incidence microstructure being arranged on the first areas of the incidence surface of the light guide plate and directly in front of and opposite to a light source; and

    an emergence microstructure, the emergence microstructure being arranged on the second areas of the emergence surface of the light guide plate opposite to the incidence microstructure;

    wherein light emitted by the light source passes through said apparatus thereby being homogeneously distributed.

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