Patent ID: 8506001

Claim:
A vehicle windshield, comprising: a coating supported by a first glass substrate, the coating comprising, moving away from the first glass substrate: a first dielectric layer comprising silicon nitride; a first contact layer comprising Ni and/or Cr; an infrared (IR) reflecting layer comprising silver located on the substrate over at least and contacting the first contact layer; a second contact layer comprising Ni and/or Cr located over and contacting the IR reflecting layer; a second dielectric layer comprising silicon nitride located over and contacting the second contact layer; and an overcoat layer comprising zirconium oxide; and a second glass substrate laminated to the first glass substrate such that the coating supported by the first substrate faces the second substrate, wherein the first contact layer is 2.1-2.5 times thicker than the second contact layer, and wherein the overcoat layer is at least 2 nm thick, wherein the first and second glass substrates are laminated together using a polymer-based interlayer.