SCREENING INFRARED RADIATION SHEET, METHOD OF ITS MANUFACTURE AND ITS APPLICATION Russian patent published in 2018 - IPC G02B5/20 C03C27/12 B32B7/02 

FIELD: laminated products or materials.

SUBSTANCE: infrared-shielding sheet includes a laminated film formed by alternately laminating a high refractive index resin layer with a high refractive index, containing fine particles and a low refractive index resin layer, containing fine particles. At least one of the low refractive index resin layers has a value of 0.1 or more, which is obtained by subtracting the refractive index at an arbitrary wavelength in the range of 780 to 2500 nm from the refractive index at a wavelength of 550 nm. Low refractive index resin layer has a refractive index lower than a refractive index of the high refractive index resin layer at any wavelength in a range from 550 nm to the arbitrary wavelength inclusive.

EFFECT: invention makes it possible to improve the transparency in the visible light range during shielding the infrared radiation.

21 cl, 7 dwg, 8 tbl