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AssigneeNano Cms Co., Ltd.
InventorsSang Geun Lee, Shi Surk Kim, Si Bo Kim, Woo Sung Lim
Estimating the term…
An infrared-excited infrared light emitting material and a preparation method thereof, and a security article for anti-counterfeit using thereof relate to a white to pale colored infrared-excited infrared light emitting material, a preparation method thereof, and an ink composition for anti-counterfeit containing the infrared exciting infrared light emitting material which visually appears white or colored, and is excited in the infrared region, emits light in the infrared region, but does not emit light in the visible region, and a security article requiring confirmation of authenticity and anti-counterfeit.
A white to pale colored infrared-excited infrared light emitting material that have characteristics such that it is excited when it receives a light with a wavelength in the range of 800˜1000 nm, which is an infrared region, the excited energy induces light emitting in the range of 1000˜1700 nm, which is an infrared region, but does not emit light in the wavelength range of 380˜780 nm, which is a visible region.
A preparation method for an infrared-excited infrared light emitting material characterized by comprising the steps of:
An ink composition for anti-counterfeit including an infrared-excited infrared light emitting material having an external color of white to pale color and emitting infrared light when excited by infrared light, and emitting one or two infrared wavelengths at the same infrared excitation wavelength, but not emitting light in the visible region.
An article for anti-counterfeit including an infrared-excited infrared light emitting material having an external color of white to pale emitting infrared light when excited by infrared light, emitting one or two infrared wavelengths at the same infrared excitation wavelength, but not emitting light in the visible region.
Dependencies are inferred from the claim text.