| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat ray shielding material, which is excellent in transmissivity for visible rays and transmissivity for electric waves, has a high shielding rate against IR rays in a short wavelength side, can shield against IR rays in a wide range, has low brittleness and can be formed into a thin layer. <P>SOLUTION: The heat ray shielding material includes a metal particle-containing layer containing at least one kind of metal particles and a cholesteric liquid crystal layer. The metal particles contain metal planar particles in a substantially hexagonal or a substantially discoidal shape by 60% or more by number. The cholesteric liquid crystal layer shows a selective reflection wavelength in an IR light region. <P>COPYRIGHT: (C)2012,JPO&INPIT |
