Patent ID: 7384152

Claim:
A liquid-cooled projector for forming and projecting an image upon a screen, an interior of said projector being equipped with a liquid-cooling unit comprising: a liquid-cooling jacket provided for a component of said projector that is to be cooled; a circulation pump for circulating a cooling liquid; a radiator for cooling said cooling liquid that has risen in a temperature; a reserve tank for holding a prescribed amount of said cooling liquid that is circulated; and piping for connecting said liquid-cooling jacket, said circulation pump, said radiator, and said reserve tank, wherein tips of an inflow nozzle and outflow nozzle for cooling liquid provided in said reserve tank extend to a central portion of the reserve tank such that when at least a prescribed amount of said cooling liquid is held in said reserve tank, openings of the nozzle tips are in contact with the cooling liciuid inside the reserve tank.