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US 2026/0299367 A1Published application
Electrochromic device, lens unit, imaging device, window member, and method of driving electrochromic element
AssigneeCanon Kabushiki Kaisha
InventorWataru Kubo
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Abstract
The present disclosure repeatedly supplies, when controlling gradation of transmittance, a first voltage for advancing an electrochemical reaction for decreasing transmittance of an electrochromic layer and a second voltage for advancing an electrochemical reaction for increasing the transmittance of the electrochromic layer, in a time domain in which the electrochemical reaction of the electrochromic layer in the electrodes progresses in the first region and transmittance change of the first region is not visible.
Claims18
An electrochromic device comprising:
- a quadrilateral electrochromic element including a pair of electrodes,
- an electrochromic layer disposed between the pair of electrodes,
- interconnections connected to the pair of electrodes at only one side of the quadrilateral electrochromic element;
- and
- a driving circuit supplies voltages to the quadrilateral electrochromic element via the interconnections.
2 more elements
An electrochromic device comprising:
- a circular electrochromic element including a pair of electrodes,
- an electrochromic layer disposed between the pair of electrodes,
- interconnections connected to the pair of electrodes at only circumference side of the circular electrochromic element;
- and
- a driving circuit supplies voltages to the quadrilateral electrochromic element via the interconnections.
2 more elements
Dependencies are inferred from the claim text.