| 摘要 |
PROBLEM TO BE SOLVED: To propose a suitable constitution for heat-insulation laminated glass, in which a heat ray reflection film is used. SOLUTION: In the heat-insulation laminated glass, a first glass sheet/an interlayer film section/a second glass sheet are laminated. In the interlayer film section, a first interlayer film/a heat ray reflection film/a second interlayer film are laminated. The heat ray reflection film is an optical interference multilayer film obtained by laminating many layers of two kinds of polymer thin films having different refractive indices, and the first glass sheet is clear glass and the second glass sheet is glass having heat ray absorption function. The transmittance to sunlight made incident normally on the first glass surface and having wavelengths in a range of 300-2,500 nm is≤48%, when the value is calculated by JIS R 3106 (1998), and the reflectance to sunlight is at least 10%. COPYRIGHT: (C)2004,JPO
|
