| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio-wave transmissible wavelength selection plate suitable as window glass for an automobile and window glass for a building, which is constituted so as to reduce the reflectivity against the radio wave of the frequency band of TV broadcasting, satellite broadcasting and a portable telephone and as a sufficient solar radiation shielding capacity and a visible light transmissivity reduced in irregular reflection and excellent in perspective properties. SOLUTION: The radio-wave transmissible wavelength selection plate is constituted by forming a transparent dielectric layer on a transparent substrate and forming Ag fine particles 1 on the transparent dielectric layer and characterized in that each of the Ag fine particles has apex parts at least at two places, the height of the apex parts is 8-150 nm, the diameter of the circumcircle of the Ag fine particles is 100-600 nm and the ratio of the coating area of the Ag fine particles to the surface area of the transparent substrate is 0.2-0.8. COPYRIGHT: (C)2006,JPO&NCIPI
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