Patent ID: 6312131
Filing Date: 2001-11-06
Classification: B60R,C03C,G02B,Y10S

Abstract:
A hydrophilic mirror comprising a glass substrate having coated on one of the two main surface sides thereof (A) a layer having a refractive index n1 at 550 nm, (B) a layer having a refractive index n2 at 550 nm, (C) a titanium oxide layer having a refractive index n3 at 550 nm, and (D) an overcoat in this order, the refractive indices n1, n2, and n3 satisfying the relationship: n1.gtoreq.n3>n2, and said hydrophilic mirror having, a reflectance of 70% or more of visible igaht incident on the coated side, wherein said overcoat (D) both (i) is of at least one of silicon oxide, aluminum oxide, zirconium oxide, cerium oxide, and a mixed oxide of titanium oxide and either silicon oxide, aluminum oxide, zirconium oxide, or cerium oxide and (ii) has a silicon oxide content of 80% or more.