| 摘要 |
<p>A low-reflectance glass article comprising: a transparent glass substrate having a refractive index of 1.47 to 1.53; and, laminated on the transparent glass substrate in the following order, a first layer having a refractive index (n1) intermediate between 1.60 and 1.95 and a layer thickness of (60 to 130 nm)/n1, a second layer having a high refractive index (n2), which is in the range of from 1.91 to 2.60 and is at least 0.20 larger than the refractive index of the first layer, and a layer thickness of (140 to 230 nm)/n2, and a third layer having a low refractive index (n3), which is in the range of from 1.35 to 1.59 and is at least 0.20 smaller than the refractive index of the first layer, and a layer thickness of (110 to 150 nm)/n3, wherein the second layer contains a titanium oxide and other metal oxide(s) in a total content of not less than 70 % by mole, the third layer contains 50 to 100 % by mole of silicon oxide and the above metal oxide(s) in a total content of 0 to 10 % by mole, and the first layer contains 15 to 80 % by mole of silicon oxide and the above metal oxide(s) in a total content of 20 to 70 % by mole. This article is coated with an optical multilayered film that can reduce the reflectance in the visible light region in its wide range.</p> |
