Multi-cell electrochromic devices

Details Multi-cell electrochromic devices Multi-cell electrochromic devices

2007-07-10

2008-11-11

Choi, William C (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S268000

Reexamination Certificate

active

07450291

ABSTRACT:
A multi-cell electrochromic device comprising: first and second electrochromic device sub-assemblies which each comprise; a first substantially transparent substrate having an electrically conductive material associated therewith and second substrate having an electrically conductive material associated therewith; and an electrochromic medium contained within a chamber positioned between the first and second substrates, wherein the electrochromic medium comprises: at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the first and second electrochromic device sub-assemblies are in optical alignment, and further wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.5% in a low transmission state.

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