| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the existing gas laser oscillator, wherein the gas laser oscillator is large-sized and cannot provide higher output, because the flow rate of the laser gas cannot be increased due to its gas-blowing device easily generating circumferential deflection. SOLUTION: In the gas laser oscillator, the gas-blowing device for blowing the laser gas includes: a rotating shaft that is provided with an impeller part at the front end part thereof and formed of a material that provides the smallest expansion coefficient among the members forming the gas-blowing device; a driving part for rotating the rotating shaft an upper bearing and a lower bearing coupled with the rotating shaft; and a clamping plate for fixing the external circumferential part of the lower bearing. COPYRIGHT: (C)2010,JPO&INPIT |
