The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 1999
Filed:
Apr. 01, 1996
Katsuto Tanaka, Matsusaka, JP;
Central Glass Company, Limited, Yamaguchi, JP;
Abstract
The invention relates to a heat reflecting glass pane. This glass pane has a transparent glass plate and a multilayer coating formed on one side of the glass plate. The multilayer coating includes a first heat-reflecting layer formed on a surface of the glass plate, and a second layer formed on the first layer. The first layer has a first refractive index from 2.0 to 3.5, a first extinction coefficient from 0.2 to 1.5, and a first thickness from 20 to 80 nm. The second layer has a second refractive index from 1.6 to 2.3, a second extinction coefficient not higher than 0.03, and a second thickness from 10 to 100 nm. The second refractive index is smaller than the first refractive index. The heat reflecting glass pane does not so much reduce the reflectance of a visible light incident on the glass plate from the uncoated side, but substantially reduces the reflection of a visible light incident on the second layer from the coated side.