Electrochromic element, optical filter, lens unit, image pickup apparatus, and window member
US9869919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2016 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Aug 6, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/15145
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.