Fluorescent pattern forming article, recording medium, security medium, and recording method
First Claim
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1. A fluorescent pattern forming article comprising:
- a first layer containing a metal ion; and
a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion contained in the first layer to thereby enable an intensity of fluorescence based on the metal ion to be changed.
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Abstract
A fluorescent pattern forming article including a first layer containing a metal ion, and a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion contained in the first layer to thereby enable an intensity of fluorescence based on the metal ion to be changed.
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Citations
23 Claims
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1. A fluorescent pattern forming article comprising:
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a first layer containing a metal ion; and
a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion contained in the first layer to thereby enable an intensity of fluorescence based on the metal ion to be changed. - View Dependent Claims (2, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20)
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3. A fluorescent pattern forming article comprising:
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a first layer containing a metal ion;
a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion contained in the first layer to thereby enable an intensity of fluorescence based on the metal ion to be increased; and
a third layer interposed between the first and second layers and containing a fluorescent compound having the metal ion and the ligand coordinated with the metal ion, said fluorescent compound being formed into a pattern. - View Dependent Claims (4, 5, 14)
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6. A fluorescent pattern forming article comprising:
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a first layer containing a first complex having a metal ion and fluorescent properties and functioning as a fluorescent layer;
a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion of the first complex contained in the first layer to thereby enable an intensity of fluorescence based on the metal ion to be decreased; and
a partitioning layer interposed between the first and second layers for separating these layers from each other, said partitioning layer containing a second complex having the ligand coordinated with the metal ion of the first complex, said second complex being formed into a pattern. - View Dependent Claims (7)
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21. A recording medium which is capable of recording information as a distribution of fluorescent intensity, the recording medium comprising:
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a first layer containing a metal ion; and
a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion contained in the first layer, to thereby enable an intensity of fluorescence based on the metal ion to be changed.
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22. A security medium which is capable of recording security information as a distribution of fluorescent intensity, the security medium comprising:
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a first layer containing a metal ion; and
a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion contained in the first layer, to thereby enable an intensity of fluorescence based on the metal ion to be changed.
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23. A recording method for performing recording of information onto a fluorescent pattern forming article comprising a first layer containing a metal ion;
- and a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion contained in the first layer and enabling an intensity of fluorescence based on the metal ion to be changed;
the method comprising;
externally applying at least one kind of energy selected from the group consisting of heat, stress and light to the fluorescent pattern forming article to enable the ligand of the second layer to be coordinated with the metal ion contained in the first layer, thereby changing the intensity of fluorescence to perform the recording of information.
- and a second layer disposed facing the first layer and containing a ligand coordinating with the metal ion contained in the first layer and enabling an intensity of fluorescence based on the metal ion to be changed;
Specification