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Imaging media including interference layer for generating human-readable marking on optical media

  • US 7,198,834 B2
  • Filed: 03/22/2005
  • Issued: 04/03/2007
  • Est. Priority Date: 03/22/2005
  • Status: Expired due to Fees
First Claim
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1. An optical recording medium, comprising:

  • a substrate, andan imaging medium disposed on said substrate, said imaging medium comprising;

    a marking layer including a thermochromic compound; and

    an interference layer tuned to absorb light having a predetermined wavelength;

    wherein said interference layer comprises at least two metal layers and at least one dielectric layer therebetween.

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