Patent ID: 8179936

Claim:
A gas-cooled laser device comprising: heat dissipative optical components; a first housing wall made of a heat conducting material, the first housing wall being provided with first ventilation channels that extend within the first housing wall, each of the first ventilation channels having a length that is greater than the thickness of the first housing wall; a second housing wall made of a heat conducting material, the second housing wall being provided with second ventilation channels that extend within the second housing wall, each of the second ventilation channels having a length that is greater than the thickness of the second housing wall; wherein the heat dissipative optical components are mounted on a plate of a heat conducting material, and the plate is arranged between the first and second housing walls and is directly connected to the first and second housing walls in a thermally conducting manner; and wherein heat dissipated by the heat dissipative optical components is conducted away from the plate to the housing walls, and the first and second ventilation channels extend within the first and second housing walls respectively, so as to convey heat, dissipated by the heat dissipative optical components, away from the housing walls.