To eliminate disadvantages of a structural large heat loss of a radiant cooler of a prior art, a high cost of a material expense or the like and a diffi culty in a mass production, and a defect of increasing a cooling amount in association with an increase in a moisture in the atmosphere.

A micro-compound parabolic concentration (CPC) type radiating cooler comprises a compound parabolic concentrator type reflecting mirror having a size of 1/3 to 1/10 of the size of the prior art. The cooler can be mass produced, has high performance, multiple functions, a reduced thickness and a light weight.