Heat reflecting sandwich plate

A heat reflecting sandwich plate, for use in a vehicle, consisting of a first and a second transparent plates bonded together with a transparent resin film and a heat reflecting film,

• characterized in that the first transparent plate is coated on the inside thereof with said heat reflecting film which intervenes between the first transparent plate and the transparent resin film, said heat reflecting film being a laminate consisting of a first metal oxide single-layer structure, a noble metal layer, and a second metal oxide single-layer structure formed consecutively on the inside of the first transparent plate, said first and second metal oxide layers each being made of any of tin oxide, indium oxide, tin oxide containing indium oxide, zinc oxide or antimony oxide, said first and second metal oxide layers each having a thickness in the range of 190 to 690 .ANG. and each having a refractive index in the range of 1.9 to 2.1, and the first and second metal oxide layers having thicknesses controlled such that their total thickness is 500-900 .ANG. and the ratio of the thickness of the first metal oxide layer to the thickness of the second metal oxide layer or the ratio of the thickness of the second metal oxide layer to the thickness of the first metal oxide layer is in the range of 1.1 to 1.6,
• the noble metal layer has a sheet resistance of 4-10 ohms/square and is made of one or more than one member selected from gold, silver, copper, palladium and rhodium,
• and the heat reflecting sandwich plate produces reflected rays which have a chromaticness specified by -1.ltoreq.a.ltoreq.1 and -1.ltoreq.b.ltoreq.1, where a and b denote the chromaticness indices of Hunter's color specification system, and having a visible light reflectivity lower than 10%.