| abstract |
(57) [Abstract] [PROBLEMS] To obtain a heat ray-reflecting glass in which film characteristics such as visible light transmittance hardly change even when subjected to a strengthening treatment accompanied by heating. SOLUTION: The glass plate has an oxide containing cobalt, iron, and chromium as main components, a film thickness of 10 to 70 nm, and has a two-layer structure, and has a first coating film on the glass side and air. A heat ray reflective glass formed with a coating in which the weight percentages of cobalt, iron and chromium in the total amount of metal per unit area with the second coating on the side satisfy the following conditions. First coating: 65-96% cobalt, 2-25% chromium, 2 iron ˜33%, second coating; and at least one of, 2 to 96% cobalt, 2 to 8 chromium % Or 18-96%, iron 2-96%, cobalt 2- 96%, chrome 2-96%, iron 2-10% |