Electrochromic element, optical filter, lens unit, imaging apparatus, and window member
First Claim
1. An electrochromic element, comprising:
- a pair of electrodes; and
an electrochromic layer disposed between the pair of electrodes and containing a plurality of organic electrochromic compounds,wherein when an optical density in a decolored state thereof is defined as 0, a fluctuation ratio of a transmittance in a first wavelength region of 650 nm to 700 nm with respect to a first central transmittance in the first wavelength region is within ±
15% at an optical density of 0.3.
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Accused Products
Abstract
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.
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Citations
21 Claims
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1. An electrochromic element, comprising:
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a pair of electrodes; and an electrochromic layer disposed between the pair of electrodes and containing a plurality of organic electrochromic compounds, wherein when an optical density in a decolored state thereof is defined as 0, a fluctuation ratio of a transmittance in a first wavelength region of 650 nm to 700 nm with respect to a first central transmittance in the first wavelength region is within ±
15% at an optical density of 0.3. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification