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LIQUID CRYSTAL SKI GOGGLES AND METHODS OF MANUFACTURING THE SAME

  • US 20090256978A1
  • Filed: 06/18/2009
  • Published: 10/15/2009
  • Est. Priority Date: 07/14/2006
  • Status: Active Grant
First Claim
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1. A power unit that supplies power to a liquid crystal device, comprising:

  • a housing;

    a battery carried by said housing;

    a drive circuit carried by said housing and connected to said battery;

    at least one prong extending from said housing, said prong providing at least two electrical leads connected to said drive circuit;

    a master switch connected to said battery to control application of power to said drive circuit; and

    a state change switch adapted to control application of power from said at least two electrical leads to the liquid crystal device.

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