COOLING DEVICE, LIGHT SOURCE DEVICE PROVIDED WITH COOLING DEVICE, AND PROJECTION-TYPE IMAGE DISPLAY DEVICE PROVIDED WITH LIGHT SOURCE DEVICE

摘要

The present invention is provided with: a refrigerant circuit in which a compressor (21), a condenser (22), an expansion valve (23), and an evaporator (25) are sequentially connected in a ring by pipes, and in which a refrigerant is circulated; and a heater (26) that is provided to the refrigerant circuit. The evaporator (25) is thermally connected to a heat generating body.