| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an infrared reflection film including a layer in which a cholesteric liquid crystal phase is fixed, and visible light transmissivity, a heat insulating performance, light resistance, and radio wave transmissivity are improved. <P>SOLUTION: An infrared reflection film includes a dielectric multi-layer film configured by alternately stacking low refraction index dielectric films and high refraction index dielectric films; and an infrared reflection layer including a cholesteric liquid crystal. All the dielectric films constituting the dielectric multi-layer film are formed from an inorganic material other than a metal, and all the dielectric films constituting the dielectric multi-layer film meet an expression of 225nm≤ni×di≤350nm (in which ni denotes a refraction index of an i-th dielectric film in the dielectric multi-layer film, and di denotes a thickness of the i-th dielectric film in the dielectric multi-layer film). <P>COPYRIGHT: (C)2012,JPO&INPIT |
