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Limited play optical devices with interstitial reactive layer and methods of making same

  • US 20040209034A1
  • Filed: 05/03/2004
  • Published: 10/21/2004
  • Est. Priority Date: 06/05/2001
  • Status: Active Grant
First Claim
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1. An optical media comprising:

  • a substrate, wherein said substrate includes information encoding features encoded therein;

    a reactive layer, wherein said reactive layer transforms from a substantially transparent state to a state that interferes with the passage of light in response to predefined stimulus, said reactive layer comprising;

    a reactive material, wherein said reactive material has a first state that is substantially unreactive with said predefined stimulus; and

    a second state that is substantially reactive with said predefined stimulus.

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