| 摘要 |
PURPOSE:To bring the temperature of a thermal medium in coincident with a room temperature thereby to simply maintain the temperature of all supporting members constant by circulating the medium in the connecting holes of the members of a laser resonator. CONSTITUTION:A high-frequency voltage is applied to generate a glow discharge in the interior 1c of a laser tube 1, CO2 molecules are excited by passing laser gas through the interior 1c, the irradiated light of predetermined wavelength is reflected to be resonated by reflecting mirrors 2, 4 at both sides of the tube 1, and the reflected lights are partly obtained as a laser output from the mirror 4. In this case, connecting holes 61a-61d are respectively formed longitudinally in the members 6a-6d of the resonator, a circulating water is fed to the holes 61, the heat of the circulating water is exchanged by a radiator 8 and a feed pipe 9 to bring in coincidence with a room temperature. Accordingly, the temperature difference between the upper and lower parts of the tube 1 is absorbed to bring the temperatures of the members 6 in coincidence. |
