Electrochromic element, optical filter, lens unit, image pickup apparatus, and window member
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Jun 24, 2016
filing date -
Jul 2, 2015
priority date (Note) -
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Abstract
Provided is an electrochromic element, which is capable of correcting possible charge imbalance, and is suppressed in color remaining, the electrochromic element including: a first electrode; a second electrode; a third electrode; and an electrolyte, an anodic organic electrochromic compound, and a cathodic redox substance that are arranged between the first electrode and the second electrode, at least one of the first electrode and the second electrode being transparent, in which: the third electrode is electrically connectable to at least one of the first electrode and the second electrode through the electrolyte; the third electrode further has a redox substance; and a reduced form of the redox substance of the third electrode is more easily oxidized than a reduced form of the anodic organic electrochromic compound.
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