Provided is a reflection section (a first reflection member)(8a) which is disposed on the emission side of the illumination light from an illumination device (1) with respect to a light source unit (30) to reflect a part of the light emitted from the light source unit (30) toward a region opposite the light emission direction of the light source unit (30). Thereby, it is possible to distribute light to the region opposite the light emission direction of the light source using the emission light from the light source.
