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US 11,442,324 B2Granted
Electrochromic element, imaging apparatus and transmittance variable window using the same
AssigneeCanon Kabushiki Kaisha
InventorWataru Kubo
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Abstract
The present disclosure includes an effective optical region within a transmittance variable region, and sets the transmittance variable region and the effective optical region so that a shortest distances from a periphery of the transmittance variable region to a periphery of the effective optical region, d1 and d2, are 7.5% or more and 25% or less of a length of the transmittance variable region on a straight line including the shortest distances, L1, in a vertical direction.
Claims20
An electrochromic element, comprising:
- a first electrode;
- a second electrode;
- an electrochromic layer disposed between the first electrode and the second electrode;
- and
- the electrochromic element having an effective optical region within a transmittance variable region,
- wherein:
- when a shortest distance from an end of the effective optical region to an end of the transmittance variable region is d and a length of the transmittance variable region on a straight line including the shortest distance is L in one direction in a plane of the effective optical region, d is 7.5 to 25% of L at both ends of the one direction;
- the transmittance variable region includes a color inhomogeneity part;
- and
- the color inhomogeneity part is not in the effective optical region.
7 more elements
An electrochromic element, comprising:
- a first electrode;
- a second electrode;
- and
- an electrochromic layer disposed between the first electrode and the second electrode,
- the electrochromic element having an effective optical region within a transmittance variable region, and comprising a shield part covering a region from an end of the effective optical region to an end of the transmittance variable region along the end of the effective optical region,
- wherein:
- a shortest distance from the end of the effective optical region to the end of the transmittance variable region in the shield part is 7.5 to 25% of a length of the transmittance variable region on a straight line including the shortest distance;
- the shielding region of the electrochromic layer includes a color inhomogeneity part;
- and
- the effective optical region of the electrochromic layer does not include the color inhomogeneity part.
7 more elements
Dependencies are inferred from the claim text.