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US 2015/0369659 A1Published application
Luminescent Infrared Transparent Sticker
AssigneeStardust Materials, LLC
InventorsVitaly Talyansky, Edward Talyansky
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Abstract
A luminescent infrared transparent sticker is disclosed herein. An example apparatus includes a substrate that is transparent with respect to light at a first wavelength and light at a second wavelength and an adhesive on a first side of the substrate, wherein the adhesive contains taggant that has luminescent properties such that when the taggant is illuminated with light at the first wavelength, it emits light at the second wavelength
Claims20
An apparatus comprising:
- a substrate that is transparent with respect to light at a first wavelength and light at a second wavelength;
- and
- an adhesive on a first side of the substrate, wherein the adhesive contains taggant that has luminescent properties such that when the taggant is illuminated with light at the first wavelength, it emits light at the second wavelength.
A method comprising:
- illuminating a substrate with light at a first wavelength, the substrate is transparent with respect to light at the first wavelength and the bottom of the substrate is coated with an adhesive that contains taggant having luminescent properties such that when the taggant is illuminated by light at the first wavelength, it emits light at a second wavelength;
- detecting the light emitted by the taggant;
- and
- determining whether the substrate is authentic based on the amount of light detected.
1 more element
A method comprising:
- illuminating a substrate with light at a first wavelength, the top of the substrate contains dye that has luminescent properties such that when the dye is illuminated with light at the first wavelength, it emits light at a second wavelength, the substrate is transparent with respect to light at the second wavelength and light at a third wavelength, the bottom of the substrate is coated with an adhesive that contains taggant having luminescent properties such that when the taggant is illuminated by light at the second wavelength, it emits light at the third wavelength;
- detecting the light emitted by the taggant after the substrate is illuminated;
- and
- determining whether the substrate is authentic based on the amount of light detected.
1 more element
Dependencies are inferred from the claim text.