Light source apparatus comprising a cooling mechanism

摘要

A light source apparatus 100 includes a cooling mechanism driving portion 3 for driving a cooling mechanism 5 in such a manner that an element temperature of a light source element 4 which is detected by an element temperature detecting portion 8 reaches a target temperature, and a control portion 1 for calculating a dew point temperature of the cooling mechanism 5 and controlling the cooling mechanism driving portion 3 and a light source element driving portion 2 by using the calculated dew point temperature and the element temperature.