Abstract: In a laser oscillator, a pair of electrodes is disposed in a housing into which a gas is sealed, a waveguide is formed by the pair of electrodes, and a laser beam is configured to be extracted from an end of the housing. The laser oscillator includes a mirror holder attached to an end of the electrode, the end serving as an end of the waveguide, and a reflection mirror attached to the mirror holder and reflecting a laser beam generated in the waveguide. In the laser oscillator, a passage through which a cooling medium is passed is formed inside each of the pair of electrodes.

Abstract: In a laser oscillator, a pair of electrodes is disposed in a housing into which a gas is sealed, a waveguide is formed by the pair of electrodes, and a laser beam is configured to be extracted from an end of the housing. The laser oscillator includes a mirror holder attached to an end of the electrode, the end serving as an end of the waveguide, and a reflection mirror attached to the mirror holder and reflecting a laser beam generated in the waveguide. In the laser oscillator, a passage through which a cooling medium is passed is formed inside each of the pair of electrodes.

Abstract: The present invention aims to prevent, in a gas laser resonator, the deterioration in quality of discharge by reduction of the change of the pressure in a discharge chamber and the inflow of impurity gases, such as air, into the discharge chamber. A bracket 6 is attached to one end of a tube 1 interposing a gasket 13 only for sealing an opening of the discharge chamber 2 only and a gasket 14 for sealing both openings of the discharge chamber 2 and a buffer chamber 12. Also, a glass plate 8 and further a bracket 9 are attached to the other end of the tube 1 interposing a gasket 15 only for sealing the opening of the discharge chamber 2 and a gasket 16 for sealing both openings of the discharge chamber 2 and the buffer chamber 12. The pressure in the buffer chamber 12 is set lower than that of the discharge chamber 2 or set higher than the atmospheric pressure to decrease the inflow of the impurity gases to the discharge chamber 2.

Abstract: The present invention aims to prevent, in a gas laser resonator, the deterioration in quality of discharge by reduction of the change of the pressure in a discharge chamber and the inflow of impurity gases, such as air, into the discharge chamber. A bracket 6 is attached to one end of a tube 1 interposing a gasket 13 only for sealing an opening of the discharge chamber 2 only and a gasket 14 for sealing both openings of the discharge chamber 2 and a buffer chamber 12. Also, a glass plate 8 and further a bracket 9 are attached to the other end of the tube 1 interposing a gasket 15 only for sealing the opening of the discharge chamber 2 and a gasket 16 for sealing both openings of the discharge chamber 2 and the buffer chamber 12. The pressure in the buffer chamber 12 is set lower than that of the discharge chamber 2 or set higher than the atmospheric pressure to decrease the inflow of the impurity gases to the discharge chamber 2.

Abstract: One or more specific wires is placed at the middle of the wire harness cross section with double-sided adhesive tape between the specific wires and the other wires surrounding these core wires. One side of the double-sided adhesive tape adheres to these core wires while the other side adheres to the other wires surrounding the core wires. The double-sided adhesive tape thus positions and holds both the selected core wires and the surrounding other wires. A single-sided adhesive tape can be also used.