HEAT RAY SHIELDING MICROPARTICLE, HEAT RAY SHIELDING MICROPARTICLE DISPERSION SOLUTION, HEAT RAY SHIELDING FILM, HEAT RAY SHIELDING GLASS, HEAT RAY SHIELDING DISPERSION BODY, AND HEAT RAY SHIELDING LAMINATED TRANSPARENT BASE MATERIAL.

摘要

The objective of the invention is to provide a heat ray shielding microparticle, a heat ray shielding microparticle dispersion solution, a heat ray shielding film, a heat ray shielding glass, a heat ray shielding dispersion body, and a heat ray shielding laminated transparent base material such that when a structure body such as a window material is applied, heat ray shielding properties can be exhibited to suppress skin irritations while enabling the use of a communication apparatus, an imaging apparatus, sensors, and the like which use near-infrared light that has passed through the structure body, the heat ray shielding film, the heat ray shielding glass, the dispersion body, or the laminated transparent base material. Provided are the heat ray shielding microparticle, the heat ray shielding microparticle dispersion solution, the heat ray shielding film, the heat ray shielding glass, the heat ray shielding dispersion body, and the heat ray shielding laminated transparent base material, the heat ray shielding microparticle being a composite tungsten oxide microparticle having a heat ray shielding function. If the visible radiation transmittance is 85% when only the light absorption by the composite tungsten oxide microparticle is calculated, the mean value of transmittance in a wavelength range of 800 to 900 nm is between 30% and 60% inclusive, the mean value of the transmittance in a wavelength range of 1200 to 1500 nm is 20% or lower, and the transmittance at the wavelength of 2100 nm is 22% or lower.