Imaging media including interference layer for generating human-readable marking on optical media
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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Abstract
An optical recording medium, comprises a substrate, and an imaging medium disposed on the substrate, the imaging medium comprising: a marking layer including a thermochromic compound and an interference layer tuned to absorb light having a predetermined wavelength.
149 Citations
20 Claims
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1. An optical recording medium, comprising:
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a substrate, and an 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A means for providing human-readable and machine-readable marks on an optical recording medium, comprising:
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first means for recording machine-readable marks on said medium in response to an optical signal having a wavelength; second means for recording human-readable marks on said medium, said second means including thermochromic means for producing a human-detectable optical change in response to a thermal stimulus and an interference layer for converting an optical signal having said wavelength into heat, wherein said interference layer comprises at least a spacer between first and second reflecting layers. - View Dependent Claims (14, 15, 16)
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17. A system, comprising:
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a processor, a laser coupled to said processor; a data storage medium including a substrate having a first surface that can be marked with machine-readable marks by said laser and a second surface that can be marked with human-readable marks by said laser, said second surface including an 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 a spacer between first and second reflecting layers. - View Dependent Claims (18, 19, 20)
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Specification