Patent ID: 8746948

Claim:
A light guide for guiding light to an irradiation range from multiple point sources arranged in a first direction (Y 1 ) and held by a light source board, the light guide comprising: a supporting unit including multiple supporting pieces provided to the light source board, the multiple supporting pieces arranged at regular intervals in the first direction (Y 1 ); and a light guiding body continuous with and supported by the multiple supporting pieces, the light guiding body disposed downstream from the multiple point sources in a light emission direction (L) of the multiple point sources, the light guiding body including: an incident surface disposed facing irradiation surfaces of the multiple point sources; a light emission surface from which the light is directed to the irradiation range; multiple support ranges in which the multiple supporting pieces are provided; and multiple light transmission ranges to cause the light emitted from the multiple point sources to exit the guiding body partly, the multiple light transmission ranges each adjacent to a respective one of the multiple support ranges in the first direction (Y 1 ), wherein the multiple support ranges and the multiple light transmission ranges have substantially the same length in a second direction (X) perpendicular to the first direction (Y 1 ).