ELECTROCHROMIC COMPOSITION AND ELECTROCHROMIC ELEMENT
申请人:CANON KABUSHIKI KAISHA
公开号:US20170114274A1
公开(公告)日:2017-04-27
An electrochromic composition has an anodic electrochromic compound and a cathodic electrochromic compound, in which the anodic electrochromic compound is represented by General Formula [1]
and the cathodic electrochromic compound is represented by General Formula [2]
In General Formula 1, A
1
to A
4
represent substituents, R
1
and R
2
, and R
20
and R
21
represent a hydrogen atom or a substituent. n is an integer of 1 to 5. X represents a thiophene derivative and Y- represents an anion.
[EN] NOVEL ORGANIC COMPOUND<br/>[FR] NOUVEAU COMPOSÉ ORGANIQUE
申请人:CANON KK
公开号:WO2013099523A1
公开(公告)日:2013-07-04
The present invention provides an organic compound to be used in an electrochromic device. The organic compound has excellent oxidation-reduction repeating characteristics and shows high transparency in the bleached state without showing light absorption in the visible light region. The organic compound has a structure represented by Formula [1] according to Claim 1. In Formula [1], A1 and A2 represent substituents, and at least one of A1 and A2 is an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, or an optionally substituted aryl group. R1 represents a substituent, X represents an electrochromic portion, and n is an integer of 1 to 3.
Electrochromic element, optical filter, lens unit, imaging apparatus, and window member
申请人:CANON KABUSHIKI KAISHA
公开号:US10444588B2
公开(公告)日:2019-10-15
Provided is an electrochromic element, including: a pair of electrodes; and an electrochromic layer disposed between the pair of electrodes and containing a plurality of kinds of organic electrochromic compounds, in which: at least one kind of the plurality of kinds of organic electrochromic compounds includes an organic electrochromic compound having an absorption peak in a wavelength region of 700 nm or more during coloring thereof; and when an optical density in a decolored state thereof is defined as 0, a fluctuation ratio of a transmittance in a wavelength region of from 650 nm or more to 700 nm or less with respect to a central transmittance is within ±15% at an optical density of 0.3.