| 摘要 |
Heat-reflecting glasses are disclosed which have a low visible light reflectance so as not to arouse troubles such as a reflected-light nuisance to the neighborhood, have high heat-shielding properties, do not exert an adverse influence on electromagnetic wave transmittance, and have excellent durability and a greenish, bronzy or grayish color tone, a recent taste of the market. Also disclosed is a heat-reflecting double-glazing unit using any of these glasses. One of the heat-reflecting glasses comprises a glass plate and, formed on one of two main surfaces of the glass plate, at least one layer of a coating film mainly comprising silicon, has a visible light reflectance of 25% or lower when examined with the CIE standard illuminant C from the uncoated side of the glass plate, and gives a greenish reflected color tone when viewed from the uncoated side of the glass plate. The other heat-reflecting glasses comprise a glass plate and, formed over one of the two main surfaces thereof, a coating film comprising at least one layer mainly comprising silicon, have a visible light reflectance of 15% or lower when examined with the CIE standard illuminant C from the uncoated side of the glass plate, and give a bronzy or grayish reflected color tone when viewed from the uncoated side of the glass plate.
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