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Higher transmission light control film comprising a transmissive region and an absorptive region each having a different index of refraction

  • US 9,804,311 B2
  • Filed: 04/06/2016
  • Issued: 10/31/2017
  • Est. Priority Date: 10/16/2007
  • Status: Active Grant
First Claim
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1. A collimated lighting assembly, comprising:

  • a light control film, comprising;

    a light input surface;

    transmissive and absorptive regions, the transmissive region having an index of refraction N1, and the absorptive region having an index of refraction N2, where N1−

    N2 is not less than 0.005,wherein a first interface between the transmissive region and the absorptive region makes an angle not greater than 3 degrees with a direction perpendicular to the input surface; and

    a light source emitting light toward the light input surface.

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