Agc Inc.

Satoshi Umeda

Koichi Nakagawa

Hiroshi Kumai

Teppei Konishi

Shinya Tahara

Takuji Oyama

There is provided an optical element which is an apodized filter capable of externally controlling an optical characteristic and stable over a long period. An optical elementis an optical element including: a transparent electrolyte layera pair of solid electrochromic layers which sandwiches the transparent electrolyte layerand further a pair of transparent conductive filmswhich sandwiches a pair of the solid electrochromic layer, wherein a pair of the solid electrochromic layers is constituted by a reduction coloring-type solid electrochromic layerand an oxidation coloring-type solid electrochromic layeropposing each other, the optical element including: an apodized characteristic in which transmittance increases gradually from an outer periphery toward a center in a plane orthogonal to a thickness direction of the transparent electrolyte layer

Growing community of inventors

Koriyama, Japan

Satoshi Umeda