| abstract |
The subject of the present invention is to provide a heat ray shielding particle, a heat ray shielding particle dispersion, a heat ray shielding film, a heat ray shielding glass, a heat ray shielding dispersion and a heat ray shielding laminated transparent substrate, which is used in window materials In the case of structures, it exerts heat ray shielding properties to suppress the burning sensation to the skin. At the same time, it can be used through the structure, the heat ray shielding film or heat ray shielding glass, the dispersion or the laminated transparent substrate. Infrared wireless communication, cameras, sensors, etc.nn n n n n The solution of the present invention is a heat ray shielding fine particle, a heat ray shielding fine particle dispersion, a heat ray shielding film, a heat ray shielding glass, a heat ray shielding dispersion and a heat ray shielding interlayer transparent substrate, the heat ray shielding fine particle system has For composite tungsten oxide particles with heat ray shielding function, when only the visible light transmittance of the composite tungsten oxide particles is 85% when the light absorption by the composite tungsten oxide particles is calculated, the average value of the transmittance in the wavelength range of 800~900nm is 30% or more and 60% or less, and the average transmittance of the wavelength range of 1200~1500nm is 20% or less, and the transmittance of the wavelength of 2100nm is 22% or less. |