Illuminating apparatus

An illuminating apparatus comprising:

• a light source;
• and an optical member that faces the light source and controls light distribution of light emitted from the light source,
• wherein the optical member has a pair of principal surfaces, and a plurality of prisms extending in one direction are provided on at least one of the pair of principal surfaces, the plurality of prisms including:
• a plurality of reflecting prisms that are provided in a first region among two regions divided at a virtual plane including a reference axis, the reflecting prisms being configured to emit light entered while reflecting the light at a reflecting surface;
• and
• a plurality of refracting prisms that are provided in a second region among the two regions, the refracting prisms being configured to emit light entered while refracting the light at a refracting surface.