Carbon dioxide laser tube with new structure

Abstract

The invention discloses a carbon dioxide laser tube with a new structure. The carbon dioxide laser tube comprises an air storage tube two ends of which are in a taper shape, a discharging assembly arranged in the air storage tube in an axial matching manner, an anode assembly and a cathode assembly which are respectively installed on two ends of the air storage tube in a matched manner, and a spring installed between the cathode assembly and the air storage tube in a matched manner. By adopting the carbon dioxide laser tube with the new structure, the defects of poor quality, short service lifetime, poor safety and poor stability in the prior art are overcome, and the advantages of good quality, long service lifetime, good safety and good stability are realized.

Description

technical field [0001] The invention relates to the technical field of electronic devices, in particular to a carbon dioxide laser tube with a new structure. Background technique [0002] The tube body of the current sealed-off carbon dioxide laser tube is composed of a discharge tube, a water-cooled tube, a gas storage tube and a gas return tube by firing extra-hard glass frit, usually with a three-layer casing structure. The innermost is the discharge tube, the middle is the water cooling tube, the outermost layer is the gas storage tube, and the gas return tube is used to connect the discharge tube and the gas storage tube. A total reflection mirror is arranged on the nozzle at one end of the gas return pipe, and an anode electrode is arranged at the discharge tube at this end; an output reflection mirror is arranged at the nozzle at the other end, and a cathode electrode is arranged at the discharge tube at this end. [0003] The total reflection mirror and the output r...

AI Technical Summary

Problems solved by technology

[0003] The total reflection mirror and the output reflector of this type of carbon dioxide laser tube are directly bonded to the nozzle with glue; before bonding, the nozzle needs to be ground so that the nozzles at both ends are parallel and perpendicular to the discharge tube; It is difficult to guarantee the consistency of its accuracy, which makes it difficult to guarantee the quality of this type of carbon dioxide laser tube

[0004] In addition, the macromolecular gas produced by the volatilization of the epoxy resin glue used will pollute the working gas in the laser, thereby reducing the service life of the laser

[0005] During the use of the current carbon dioxide laser tube, carbon dioxide molecules are dissociated by electron impact, and only a small part of the dissociated carbon monoxide molecules and oxygen atoms can meet and recombine into carbon dioxide molecules; because the dissociation speed of carbon dioxide molecules is faster than that of carbon monoxide molecules and oxygen atoms The speed of carbon dioxide molecules makes the number of carbon dioxide molecules decrease continuously, resulting in a decrease in the power and service life of the carbon dioxide laser tube, usually within 3000 hours

[0006] At present, the anode electrode and the cathode electrode of the carbon dioxide laser tube are rolled into a tube by a metal sheet and placed at both ends of the discharge tube. During the discharge process, the energy of the anode electrode near the edge of the cathode is highly concentrated, resulting in instability of the electrode material; During the discharge process, the temperature continues to rise, because it cannot fit well with the inner wall of the discharge tube, resulting in uneven heating of the glass here, which is prone to glass cracking

[0007] The heat generated by the laser tube makes the temperature of the water-cooled tube higher than that of the gas storage tube, and its axial dimension is larger than that of the gas storage tube after thermal expansion. The water-cooled tube and discharge tube are deformed, or even the tube body is broken, resulting in poor power mode of the laser tube or unusable

[0008] In the process of realizing the present invention, the inventor found that there are at least defects such as poor quality, short service life, poor safety and poor stability in the prior art

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