Citizen Electronics Co., Ltd.

Kenji Kusano

Tatsuro Yamada

Hiroto Isoda

A sheet-shaped lightguide member has a first surface (A), which is divided into at least two areas. The sheet-shaped lightguide member has the first surface (A) and a second surface (B) that face each other and a peripheral edge surface (C). The lightguide member receives light through at least a part of the peripheral edge surface, guides the light, and emits the guided light from the first surface (A) serving as a light exit surface. The lightguide member is divided into the at least two light exit areas (A,B) and has a light-blocking part () provided along a boundary between mutually adjacent light exit areas to block transmission of light between the adjacent light exit areas.

Growing community of inventors

Yamanashi-ken, Japan

Kenji Kusano