| 摘要 |
Provided is a lighting device having high luminance in-plane uniformity without a dark part occurring at a connecting part between surface light source panels. The lighting device (1) is provided with a plurality of surface light source panel (2), and a plurality of light diffusion passive reflectors (3) disposed at the light-emitting side of the surface light source panel (2). In the light diffusion passive reflector (3), a rectangular-shaped bottom surface is disposed on a light emitting region of the surface light source panel (2), and a light-emitting surface (3a) has substantially the same size as a planar outline of the surface light source panel (2), and a side surface (3c) is formed to incline diagonally outward towards the light-emitting surface (3a) from the bottom surface. The light diffusion passive reflectors (3) which are mutually adjoining are disposed to contact with each other without a gap in between, and are disposed so that the light-emitting surface (3a) is continuously arranged.
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