Patent ID: 6078425
Filing Date: 2000-06-20
Classification: G02B

Abstract:
A reflective mirror having high reflectance over a large spectral range, comprising:a substrate comprising at least a reflective layer of aluminum on its surface;an adhesion layer deposited on the aluminum surface comprising a material selected from the group consisting of nickel, nickel nitride, chromium, chromium nitride, nickel-chromium alloys, and nickel-chromium nitride;a second reflective layer comprising silver deposited on the adhesion layer;a passivation layer deposited on said second reflective layer comprising a material selected from the group consisting of nickel, nickel nitride, chromium, chromium nitride, nickel-chromium alloys, and nickel-chromium nitride; andat least one durability layer deposited on the passivation layer comprising a material selected from the group consisting of metal oxides and metal nitrides.