Patent · US Active

Organic electrochromic device, optical filter, lens unit, and imaging apparatus

US10372005B2 · kind B2 · utility

2Cited by

14References

22Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Wataru Kubo · Inagi, JP
Shinjiro Okada · Hiratsuka, JP
Kenji Yamada · Yamanashi, JP

Key dates

Filing date	Nov 4, 2015
Grant date	Aug 6, 2019
Priority date	—
Expiry date	Nov 4, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/15
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Provided is an organic electrochromic device which has a high response speed and is excellent in durability even when a large current is flowed transiently, in which: an electrochromic layer arranged between a pair of electrodes contains an organic electrochromic material, a redox substance, and a solvent; the organic electrochromic material and the redox substance are each a material to be reversibly subjected to a redox reaction; and a potential at which the redox substance is oxidized (or reduced) is present between a potential at which the organic electrochromic material is reversibly oxidized (or reduced) and a potential at which the organic electrochromic material is irreversibly oxidized (or reduced).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.