ELECTROCHROMIC ELEMENT, LENS UNIT, IMAGING DEVICE, AND WINDOW MEMBER

摘要

Potential non-uniformity in a surface of an electrode in an electrochromic element is improved during coloring and color erasing. The electrochromic element includes a pair of transparent electrodes and an electrochromic layer placed between the transparent electrodes. Each of the transparent electrodes includes an end portion having an electric supply portion. The electric supply portions face each other. The surface resistivity of each of the transparent electrodes increases with the increase of the distance from a corresponding one of the electric supply portions. The potential of the transparent electrodes is such that the difference between the maximum and minimum potentials in a surface of each transparent electrode is less than or equal to a predetermined value.

主权项

1. An electrochromic element comprising:
a pair of transparent electrodes; and an electrochromic layer placed between the transparent electrodes, wherein each of the transparent electrodes includes an end portion having an electric supply portion, the electric supply portions face each other, the surface resistivity of each of the transparent electrodes increases with an increase of distance from a corresponding one of the electric supply portions, and a potential of the transparent electrodes is such that a difference between maximum and minimum potentials in a surface of each transparent electrode is less than or equal to a predetermined value.