Patent ID: 11180378

Abstract:
A heat ray shielding fine particle dispersion body and a heat ray shielding laminated transparent substrate that as well as exhibit heat ray shielding properties and suppressing a scorching sensation on the skin when used in structures such as window materials and the like, also enable usage of communication devices, imaging devices, sensors and the like that use near-infrared light interposing the heat ray shielding film or the heat ray shielding glass, containing a transparent thermoplastic resin, and wherein heat ray shielding fine particles are dispersed in the transparent thermoplastic resin, the heat ray shielding fine particles having elements L, M, tungsten, and oxygen, and a hexagonal crystal structure represented by a general formula (LAMB) WCOD, wherein the element L is an element selected from K, Rb, Cs, and the element M is one or more elements selected from K, Rb, and Cs and is different from the element L.