Heat radiating apparatus and light illuminating apparatus with the same

A heat radiating apparatus that is placed in close contact with a heat source to radiate heat of the heat source in air, the heat radiating apparatus comprising:

• a support member which has a shape of a plate with a first principal surface and a second principal surface, and is placed in close contact with the heat source on the first principal surface;
• a heat pipe which is supported by the support member, and is thermally joined with the support member to transfer the heat from the heat source;
• and
• a plurality of heat radiating fins which is placed in a space that faces the second principal surface opposite to the first principal surface, and is thermally joined with the heat pipe to radiate the heat transferred by the heat pipe,
• wherein the heat pipe comprises:
• a first line part which is thermally joined with the support member;
• a second line part which is thermally joined with the plurality of heat radiating fins;
• and
• a connecting part which connects one end part of the first line part to one end part of the second line part such that the first line part and the second line part are successive,
• wherein a length of the heat pipe in a direction in which the first line part extends is slightly shorter than or equal to a length of the support member in the direction in which the first line part extends,
• wherein the connecting part has a curved part that is thermally joined with the support member in the proximity of one end part of the first line part, and
• wherein a plurality of heat radiating apparatuses are arranged in the direction in which the plurality of heat radiating fins are arranged in parallel, and the plurality of heat radiating apparatuses are connected such that the first principal surfaces of the support members of the plurality of heat radiating apparatuses are successive.