Patent ID: 6143209
Filing Date: 2000-11-07
Classification: C09K,E06B,G02F

Abstract:
An electrochromic window device, said device comprising:(a) a first substantially transparent substrate coated with a substantially transparent conductive coating having a sheet resistance from about 1 to about 100 ohms per square;(b) a second substantially transparent substrate coated with a substantially transparent conductive coating having a sheet resistance from about 1 to about 100 ohms per square, said substantially transparent conductive coating of said second substrate positioned in an opposing and spaced apart relationship with said substantially transparent conductive coating of said first substrate;(c) a seal positioned toward the peripheral edge of each of said first substrate and said second substrate and sealingly forming a cell cavity therebetween, said seal formed of one of a thermoplastic material and a thermosetting material;(d) an electrochromic medium capable of color change when an applied potential is introduced thereto disposed within said cell cavity, said electrochromic medium comprising:(i) at least one anodic compound;(ii) at least one cathodic compound; and(iii) a solvent; and(e) a means for introducing an applied potential to said electrochromic medium to controllably cause a variation in the amount of light transmitted through said device, wherein at least one of said first substrate and said second substrate comprises a float glass panel that is coated with a multilayered structure that increases the amount of reflected color inhibited and light transmitted therethrough, said multilayer structure comprising a layer of fluorine-doped tin oxide, and wherein said layer of fluorine-doped tin oxide is undercoated with an anti-iridescence means; andwherein said electrochromic window device comprises one of an architectural glazing, an aeronautical glazing, a vehicular glazing, a privacy partition, a security partition and an optically attenuating contrast filter.