Patent ID: 8556459

Claim:
A lighting device comprising: a plurality of surface light source panels having an organic electroluminescence layer, an anode, and a cathode disposed to be mutually adjoining in two dimensions, and having a light emitting region and a non-light emitting region; and a plurality of light diffusion passive reflectors including a side surface, a light-emitting surface and a bottom surface, the bottom surface being disposed on a surface of the light emitting region in each of the plurality of surface light source panels and formed to cover only the light emitting region of a surface light source panel, the side surface acting as a reflection minor surface formed to incline towards a diagonal outside at a side of a light-emitting direction from the bottom surface, the light-emitting surface emitting an emitted light from the light emitting region and a reflected light from the side surface and having substantially a same size as a planar outline of a surface light source panel, wherein a plurality of the light diffusion passive reflectors is disposed to be mutually adjoining without a gap in between and to form a continuous face, and wherein a plurality of the surface light source panels are disposed to be mutually adjoining in two dimensions, are provided along with a plurality of electrode plates mutually connected so as to allow each electrode plate to bend with respect to another electrode plate, and can be bent at a boundary part therebetween in synchronization with a bending movement of an electrode plate.