The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2013
Filed:
Nov. 01, 2011
Miki Ueda, Tokyo, JP;
Shinjiro Okada, Kamakura, JP;
Masaaki Shibata, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrochromic element includes a pair of transparent electrodes, and an electrolyte layer and an electrochromic layer disposed between the pair of transparent electrodes. Transmittance of light is changed by a voltage applied to the pair of transparent electrodes. The electrochromic layer includes a first electrochromic layer and a second electrochromic layer stacked upon each other. Both of the first and second electrochromic layers are made of titanium oxide. The first electrochromic layer is in contact with one of the pair of transparent electrodes. The second electrochromic layer is in contact with an electrolyte-layer side of the first electrochromic layer. A refractive index n0 of the transparent electrode in contact with the first electrochromic layer, a refractive index n1 of the first electrochromic layer, and a refractive index n2 of the second electrochromic layer satisfy the relationship n0<n1<n2.