Terumo Kabushiki Kaisha

Japan Aerospace Exploration Agency

Hirokazu Ishida

Osamu Mori

Tatsuhiko Suzuki

Hirotaka Ohashi

Junichiro Kawaguchi

Toshihiro Chujo

Yuichi Hioki

To provide a sheet-like optical device capable of selectively emitting light whose optical path has a changed orientation. An optical device includes a first sheet and a second sheet. The first sheet is configured to be electrically switchable between a first state in which the first sheet extends along an in-plane direction orthogonal to a thickness direction and has transparency in the thickness direction, and a second state in which the first sheet has lower transparency in the thickness direction than the transparency in the first state. The second sheet has a prism surface on which an inclined surface inclined with respect to the in-plane direction is arranged along the in-plane direction, the second sheet facing the first sheet in the thickness direction.

Optical device, attitude control apparatus, and spacecraft

Tourniquet

Growing community of inventors

Tokyo, Japan

Hirokazu Ishida