Back to results
US 8,207,511 B2Granted
Photoluminescent fibers, compositions and fabrics made therefrom
AssigneePerformance Indicator, LLC
InventorsTimothy E. Bortz, Satish Agrawal, James G. Shelnut
Life of this patent
Estimating the term…
Abstract
Disclosed are photoluminescent fibers containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum. Also disclosed are the use of the inventive fibers, fabrics made therefrom, and objects containing the fiber.
Claims12
A photoluminescent fiber comprising:
- a) one or more photoluminescent phosphorescent materials and,
- b) one or more photoluminescent fluorescent materials;
- wherein the one or more photoluminescent phosphorescent materials absorb and emit electromagnetic energies when charged or activated by either electromagnetic radiation from an excitation source incident upon the phosphorescent materials, or by emission of another photoluminescent material, or both, and wherein the one or more photoluminescent fluorescent materials absorb the emission from the one or more photoluminescent materials and emit electromagnetic energies to give a selected emission signature, such that some or all of the emission signature lies in the infrared portion of the electromagnetic spectrum, the photoluminescent materials being selected so that the emission of one of the photoluminescent materials overlaps with the absorbance of another of the photoluminescent materials, wherein the selected emission signature is the emission from one or more of the selected photoluminescent fluorescent materials, such emission being essentially unabsorbed by any of the other photoluminescent materials.
A photoluminescent fiber comprising:
- a) one or more photoluminescent phosphorescent materials and,
- b) one or more photoluminescent fluorescent materials;
- wherein the one or more photoluminescent phosphorescent materials absorb and emit electromagnetic energies when charged or activated by either electromagnetic radiation from an excitation source incident upon the phosphorescent materials, or by emission of another photoluminescent material, or both, and wherein the one or more photoluminescent fluorescent materials absorb the emission from the one or more photoluminescent materials and emit electromagnetic energies to give a selected emission signature, such that some or all of the emission signature lies in the infrared portion of the electromagnetic spectrum, the photoluminescent materials being selected so that the emission of one of the photoluminescent materials overlaps with the absorbance of another of the photoluminescent materials, wherein the selected emission signature is the emission from one or more of the selected photoluminescent fluorescent materials, such emission being essentially unabsorbed by any of the other photoluminescent materials, and wherein the core is reflective of the photoluminescent emission, a strengthening fiber, a conductive fiber or an optical fiber.
Dependencies are inferred from the claim text.