Title: Coatings on glass
Application Number: 93108575 Application Date: 1993.07.10
Publication Number: 1081657 Publication Date: 1994.02.09
Approval Pub. Date: 1999.12.22 Granted Pub. Date: 1999.12.22
International Classifi-cation: B23B17/00;C03C17/36
Applicant(s) Name: Pilkington Glass Ltd. Address:
Inventor(s) Name: Timothy Jenkinson
Attorney & Agent: DUAN CHENGEN
Abstract:
    A method of producing mirrors comprising depositing onto a ribbon of hot glass during the production process a coating comprising a reflecting layer and at least two reflection enhancing layers whereby the mirrors have a visible light reflection of at least 70%. There is also provided a mirror having such a coating. In a preferred embodiment the coating comprises: an inner layer having a refractive index of at least 1.6; an intermediate layer of relatively low refractive index and; an outer layer having a refractive index of at least 1.6; In an alternative embodiment, one of the inner and outer layers may instead be composed of a low refractive index reflective metal.
Time: 16