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Tailoring material composition for optimization of application-specific switchable holograms

  • US 7,175,780 B1
  • Filed: 01/17/2006
  • Issued: 02/13/2007
  • Est. Priority Date: 11/26/2002
  • Status: Expired due to Term
First Claim
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1. A process for reducing scattering effects in a polymer-dispersed liquid crystal optical element comprising:

  • adding an interfacial tension agent to a polymer-dispersed liquid crystal material, the polymer-dispersed liquid crystal material comprising;

    at least one acrylic acid monomer;

    at least one type of liquid crystal material;

    a photoinitiator dye; and

    a co-initiator; and

    subjecting the polymer-dispersed liquid crystal material to a polymerizing means, wherein the interfacial tension agent reduces the size of liquid crystal droplets formed within the polymer-dispersed liquid crystal optical element during polymerization of the polymer-dispersed liquid crystal material.

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