| 摘要 |
PROBLEM TO BE SOLVED: To vary light transmittance in a short time and also to efficiently transmit light in a light transmittance varying device having electrochromic elements. SOLUTION: A metal electrode film 11a being a metal film having a plurality of openings, an electrochromic element 12a, electrolyte 13, an electrochromic element 12b and a transparent electrode film 11b composed of a transparent conductive film are laminated on a glass plate 10a. A glass plate 10b is stuck onto the transparent electrode film 11b with an epoxy adhesive 14.
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