Laser light source device with cooling system and projector device

摘要

A laser light source device includes: a laser light source module (10); a pipe (20) through which a cooling refrigerant flows; a heat block (30) which thermally joins the laser light source module (10) and the pipe (20) to each other; and a vessel (50) which is arranged below the heat block (30) and receives dew condensation water which is generated on a surface of the heat block (30) by condensation and drops. The vessel (50) has an opening portion (50a) which opens upward, and a plan view profile of the opening portion (50a) is larger than a plan view profile of the heat block (30).