Illumination system

A lighting system mounted to a ceiling surface and disposed adjacent to a standing wall surface hanging down from the ceiling surface, the lighting system comprising:

• a plurality of strip-shaped plates each extending in a strip shape;
• and
• one or a plurality of planar light sources,
• wherein the plurality of strip-shaped plates are arranged side by side at an interval such that a main surface of each of the plurality of strip-shaped plates is upright with respect to the ceiling surface,
• wherein arrangement space is provided between the standing wall surface and an end surface of the strip-shaped plate, the end surface being in an extending direction of the strip-shaped plate,
• wherein the arrangement space extends along the standing wall surface,
• wherein the one or the plurality of planar light sources are each disposed in the arrangement space and constitute an emission surface that is lengthy, and
• wherein a part of light emitted from the emission surface enters between the strip-shaped plates during lighting.