Method of producing heatable mirrors by depositing coatings on glass
First Claim
1. A method of producing heatable mirrors comprising depositing onto a ribbon of hot glass during the production process a non-metallic reflecting coating comprising a reflecting layer and at least two reflection enhancing layers, the reflection enhancing layers comprising an intermediate layer of the coating of relatively low refractive index and a layer adjacent to the intermediate layer of relatively high refractive index, the two layers other than the intermediate layer being outer and inner layers of the coating each having a refractive index of at least 1.6, the intermediate layer having a refractive index less than the refractive index of either said inner layer or said outer layer and less than 3, at least one of said inner and outer layers being of silicon, the aggregate refractive index of the inner and outer layers being at least 5.5, whereby the mirrors so formed have a visible light reflection in the range of 70% to 90%, and depositing an electroconductive heating layer onto the mirrors.
0 Assignments
0 Petitions
Accused Products
Abstract
A method of producing heatable mirrors comprising depositing onto a ribbon of hot glass during the production process a reflecting coating whereby the mirrors so formed have a visible light reflection of at least 70% and depositing an electroconductive heating layer onto the mirrors. There is also provided a heatable mirror comprising a glass substrate carrying a non-metallic reflecting coating whereby the mirror has a visible light reflection of at least 70% and an electroconductive heating layer deposited on the coated substrate.
50 Citations
12 Claims
- 1. A method of producing heatable mirrors comprising depositing onto a ribbon of hot glass during the production process a non-metallic reflecting coating comprising a reflecting layer and at least two reflection enhancing layers, the reflection enhancing layers comprising an intermediate layer of the coating of relatively low refractive index and a layer adjacent to the intermediate layer of relatively high refractive index, the two layers other than the intermediate layer being outer and inner layers of the coating each having a refractive index of at least 1.6, the intermediate layer having a refractive index less than the refractive index of either said inner layer or said outer layer and less than 3, at least one of said inner and outer layers being of silicon, the aggregate refractive index of the inner and outer layers being at least 5.5, whereby the mirrors so formed have a visible light reflection in the range of 70% to 90%, and depositing an electroconductive heating layer onto the mirrors.
Specification