LUMINESCENT POLYMER COMPOSITE FILM FOR IMAGING ULTRAVIOLET, VISIBLE AND INFRARED RADIATION Russian patent published in 2022 - IPC C09K11/08 C09K11/77 C09K11/84 C08K3/01 C08K3/30 C08J5/18 

FIELD: physics.

SUBSTANCE: invention relates to materials for imaging laser radiation, having high resistance to environmental factors. Disclosed is a luminescent polymer composite film for imaging ultraviolet, visible and infrared radiation, containing a thermoplastic polymer and a luminophor, characterized in that it contains a luminophor separately or in a combination of two or more phosphors based on oxysulphide Y, and/or oxysulphide La, and/or oxysulphide Gd, and/or oxysulphide Lu, and/or CaF₂, and/or SrF₂, doped or doped with Eu ions, and/or Er ions, and/or Yb ions, and/or Ho, and/or Tm ions, with the following ratio of components, wt. %: luminophor or combination of luminophores - 11–70, thermoplastic polymer is the rest. Disclosed is a luminescent polymer composite film for imaging ultraviolet, visible and infrared radiation, comprising a thermoplastic polymer and a luminophore, characterized by that it contains a mixture of luminophores based on Sr_1-xCa_xS:Eu,Sm,Ln, where x = 0–1; Ln = Ce, Er, Pr, Tb, Tm, with the following ratio of components, wt. %: mixture of luminophores - 10–70, thermoplastic polymer is the rest. Thermoplastic polymer used can be low-pressure polyethylene, high-pressure polyethylene, polymethyl methacrylate or polyethylene terephthalate glycol.

EFFECT: creation of a luminescent polymer composite film capable of visualizing laser radiation in a wide spectral range of wavelengths of 0,2–2,2 mcm with high contrast of the observed radiation distribution pattern, high resolution and high resistance to environmental factors.

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