ELECTROCHROMIC WINDOWS AND METHOD OF MANUFACTURING THE SAME

摘要

A window includes an electrochromic medium having a color stability .DELTA.E less than 5, measured in its low transmission state after exposure to 700 hours i n a weatherometer while cycling, and a color stability .DELTA.E less than 5, measured in its high transmission state after exposure to 700 hours in a weatherometer while cycling, wherein each cycle consists of application of sufficient potential for a sufficient time such that the window reaches its low transmission state for at least 210 hours. A method for making an electrochromic device for use in such a window is also provided.