Patent ID: 7450291

Claim:
A multi-cell electrochromic device, comprising: a first substrate which comprises a first side and a second side, wherein the first and second sides include electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; a first electrochromic medium contained within a first chamber positioned between the first and second substrates, wherein the first electrochromic medium comprises: at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; a third substrate having an electrically conductive material associated therewith; a second electrochromic medium contained within a second chamber positioned between the first and third substrates, wherein the second electrochromic medium comprises: at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.5% in a low transmission state.