LIGHT SOURCE DEVICE AND PROJECTION VIDEO DISPLAY APPARATUS PROVIDED WITH LIGHT SOURCE DEVICE

摘要

A laser light source module (10) is composed of a plurality of unit laser light source modules each of which emits laser light of one color, and when the laser light source module (10) is composed of the unit laser light source modules of two or more colors, the unit laser light source module in which the median of a temperature range where practical luminance can be obtained is high is thermally connected to an evaporator (25) on the further upstream side of the flow of a refrigerant than the unit laser light source module in which the median of the temperature range where the practical luminance can be obtained is low.