Patent ID: 7959339

Claim:
An illumination apparatus comprising: a light source which generates heat when emitting an illumination light from a light-emitting surface; a light transmission member which has a light-receiving surface opposed to the light-emitting surface of the light source, to receive the illumination light emitted from the light-emitting surface of the light source, and guides the illumination light from the light source received on the light-receiving surface; and a heat radiation member which has an end face arranged along the light transmission member and opposed to the light-emitting surface of the light source, and a contact part in which at least a part of the end face directly contacts the light-emitting surface, which transmits the light generated in the light source, wherein the end face of the heat radiation member has a non-contact part located outside the light-emitting surface of the light source, in addition to the contact part, and wherein the contact part and the non-contact part of the heat radiation member are on the same level.