WO2015192268A1 - Tube laser au dioxyde de carbone gazeux et son procédé de préparation - Google Patents

Tube laser au dioxyde de carbone gazeux et son procédé de préparation Download PDF

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Publication number
WO2015192268A1
WO2015192268A1 PCT/CN2014/000601 CN2014000601W WO2015192268A1 WO 2015192268 A1 WO2015192268 A1 WO 2015192268A1 CN 2014000601 W CN2014000601 W CN 2014000601W WO 2015192268 A1 WO2015192268 A1 WO 2015192268A1
Authority
WO
WIPO (PCT)
Prior art keywords
carbon dioxide
dioxide gas
metal ring
gas laser
tube
Prior art date
Application number
PCT/CN2014/000601
Other languages
English (en)
Chinese (zh)
Inventor
徐海军
Original Assignee
徐海军
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 徐海军 filed Critical 徐海军
Priority to CN201480009212.4A priority Critical patent/CN105684242A/zh
Priority to PCT/CN2014/000601 priority patent/WO2015192268A1/fr
Publication of WO2015192268A1 publication Critical patent/WO2015192268A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors

Definitions

  • the present invention relates to the field of laser tube technology, and in particular to a carbon dioxide gas laser tube and a method of preparing the same. Background technique
  • one is a laser tube that does not have a lens
  • the other is a laser tube that has an adjustable lens angle.
  • Fig. 1 is a schematic view showing the structure of a prior art non-adjustable lens laser tube.
  • the laser tube is formed by firstly grinding the end faces 51, 54 of the glass tube with a fine sand into a plane and making the plane perpendicular to the discharge tube, and then respectively, the laser lenses 50, 55. Directly bonded to the end faces 51, 54 at both ends of the glass tube.
  • current is introduced into the laser tube from the tungsten needles 52, 53.
  • the advantages of this type of laser tube are: The connection of the laser lens is stable.
  • the tungsten needle is additionally welded to introduce current from the tungsten needle, and the very thin and hard tungsten needle is not easy to connect the wire; in addition, the lens is directly bonded to the glass nozzle because the glass is thermally conductive, Not conducive to lens distraction,
  • Patent CN 203150891 U discloses a carbon dioxide laser tube conditioning head for connecting a laser lens to a glass tube to form a laser tube with an adjustable lens angle.
  • the advantage of using the adjustable structure of the adjustment head to connect the laser lens to the glass tube is that the nozzle is not required to be ground, and the angle of the lens is adjusted by adjusting the screw; without the need to weld the tungsten needle, the current can be introduced through the metal structure of the adjustment head. Inside the laser tube.
  • the disadvantage of using such an adjustment head to connect the laser lens to the glass tube is that the adjustment head changes the angle of the laser lens by adjusting the screw and connects the laser lens to the glass tube, however, the adjustment screw is at different temperatures and In the case of vibration, it is loose, so that the connection of the laser lens is unstable, resulting in deterioration of the laser mode of the laser tube and a decrease in laser power.
  • a carbon dioxide gas laser tube comprising a laser lens and a glass tube, wherein the laser lens is fixedly connected to the glass by a metal ring that is matched with a port of the glass tube. a port of the tube, the metal ring being disposed between the laser lens and a port of the glass tube, wherein the metal ring comprises a sheet portion, a mirror portion, and a gradable portion.
  • the sheet portion of the metal ring is made of a metal or alloy having a Brinell hardness of 55 or less.
  • the sheet portion of the metal ring is made of copper.
  • the sheet portion of the metal ring of the metal ring is brazed to the seat end surface of the lens holder portion.
  • the craterable portion of the metal ring is made of a metal or alloy having a coefficient of expansion that matches the glass orifice.
  • the craterable portion of the metal ring is made of a Kovar alloy whose expansion coefficient is matched with a glass nozzle.
  • the lens holder portion of the metal ring is made of stainless steel.
  • the mirror portion of the metal ring is made of an alloy of iron, nickel, titanium or the like.
  • the mirror seat portion and the cut portion of the metal ring are made of the same metal.
  • the metal ring is provided with a metal post or hole for connecting an external wire.
  • the carbon dioxide gas laser tube comprises a laser lens and a glass tube, and the method comprises:
  • the laser lens is fixedly connected to the port of the glass tube by a metal ring that is matched with the port of the glass tube, since the adjustment screw is not used like a laser tube with a adjustable lens angle
  • the connection of the laser lens is ensured, and the tungsten needle is not welded, and current can be introduced into the laser tube through the metal ring.
  • the metal ring includes a sheet portion, a mirror portion, and a cut portion.
  • the lens holder portion and the kovar portion are integrally welded, the crater portion is sealed and sintered with the port of the glass tube, the sheet portion is brazed to the lens holder portion, and the sheet portion is adhesively sealed and connected to the laser lens.
  • the metal is relatively soft and has good thermal conductivity. For example, it can be made of metal or alloy with a Brinell hardness of 55 or less.
  • the material of the sheet is copper. The copper is soft and easy to process. The copper conducts heat better, which helps the laser lens. Cooling. DRAWINGS
  • Fig. 1 is a schematic view showing the structure of a prior art non-adjustable lens laser tube.
  • Fig. 2 is a view showing the structure of a carbon dioxide gas laser tube according to an embodiment of the present invention.
  • Fig. 3 is an enlarged view showing the trailing end of the carbon dioxide gas laser tube shown in Fig. 2.
  • Fig. 4 is an enlarged plan view showing the front end of the carbon dioxide gas laser tube shown in Fig. 2.
  • Fig. 2 is a view showing the structure of a carbon dioxide gas laser tube according to an embodiment of the present invention.
  • the carbon dioxide gas laser tube of this embodiment includes a glass tube 20 including a tail port 4 and a front port 7, and a full port mirror 1' that matches the tail port 4 of the glass tube 20.
  • the metal ring of the kovable fixed seal is connected to the glass tube 20
  • the tail port 4, the output mirror 11 is fixedly connected to the front port 7 of the glass tube 20 by a cleavable portion of the metal ring that mates with the front port 7 of the glass tube 20.
  • a structure such as a screw hole 2 may be provided on the metal ring between the full mirror 1 and the tail port 4 of the glass tube 20 for connecting an external positive lead (for example, a positive high voltage line).
  • a structure of a metal post on the metal ring between the full mirror 1 and the tail port 4 of the glass tube 20 to connect the external positive lead.
  • a positive electrode 5 is connected inside the metal ring between the full-mirror 1 and the tail port 4 of the glass tube 20, thereby introducing a current into the laser tube.
  • a structure such as a screw hole 10 may be provided on the metal ring between the output mirror 11 and the front port 7 of the glass tube 20 for connecting the negative electrode lead, and further, between the output mirror 11 and the front port 7 of the glass tube 20.
  • the inner side of the metal ring is connected with a spring 22 which is placed on the nozzle of the discharge tube 18 by a spring 22 and is connected to the metal ring between the output mirror 11 and the front port 7 of the glass tube 20, thereby introducing a current into the laser tube.
  • the metal ring between the full mirror 1 and the tail port 4 of the glass tube 20 comprises a foil portion 31 which is fixedly sealed to the full mirror 1 .
  • the metal ring between the output mirror 11 and the front port 7 of the glass tube 20 includes a foil portion 32 that is fixedly sealed to the output mirror 11.
  • the sheet portion 31 and the sheet portion 32 may be thin, so that the deformation thereof has little influence on the deformation of the entire metal ring structure.
  • the sheet portion 31 and the sheet portion 32 may be made of a metal or alloy having a Brinell hardness of 55 or less for the purpose of milling and grinding, for example, may be made of copper, and in this case, also for the full-mirror 1 and the output mirror 11 Cooling.
  • Fig. 3 is an enlarged view showing the trailing end of the carbon dioxide gas laser tube shown in Fig. 2.
  • the metal ring between the full-mirror 1 and the tail port 4 of the glass tube 20 further includes a crater 14 and a tail mirror base 12, a crater 14 and a tail mirror seat 12.
  • the connection between the gradable portion 14 and the tail port 4 of the glass tube 20 can be performed, for example, by welding or the like, and the tail mirror portion 12 is welded to the sheet portion 31, for example.
  • the kovable portion 14 is made of Kovar alloy.
  • the tail mirror seat portion 12 may be made of metal iron, titanium, nickel or an alloy thereof, and preferably may be made of a metal or alloy of a low expansion coefficient or stainless steel.
  • Fig. 4 is an enlarged plan view showing the front end of the carbon dioxide gas laser tube shown in Fig. 2.
  • the metal ring between the output mirror 11 and the front port 7 of the glass tube 20 is shown in FIG.
  • a kovable portion 23 and a front lens holder portion 25 may be connected by welding or the like, and the gradable portion 23 is sealed, for example, to the front port 7 of the glass tube 20, the front mirror
  • the seat portion 25 is spliced to the sheet portion 32, for example.
  • the kovable portion 23 is formed of Kovar alloy.
  • the kovable portion 14 may be formed of a metal or alloy having a different expansion coefficient and matching with the port glass as long as it can be matched and sealed with the glass nozzle.
  • the front mirror portion 25 may be made of metal iron, titanium, nickel or an alloy thereof, and preferably may be made of a metal or alloy having a low expansion coefficient, or may be made of stainless steel. According to another embodiment of the present invention, a method of preparing the above carbon dioxide gas laser tube is provided.
  • the kovable portion 14 may be sealed at the tail port 4 of the glass tube 20 by a sealing point 15, and the other end of the kovable portion 14 may be welded by a solder joint 3 (for example The sub-arc joint 12, the sheet portion 31 is welded to the tail mirror portion 12, for example, and then the full-mirror 1 is bonded (for example, glued) to the sheet portion 31, and at the tail mirror portion 12 A threaded hole 2 is provided for connecting the positive electrode lead, and a positive electrode 5 is connected to the inner side of the tail mirror seat portion 12. As shown in FIG.
  • the crater 23 can be sealed at the front port 7 of the glass tube 20 by a sealing point 8, and the other end of the kovable portion 23 is welded (for example, argon arc welded) to the front lens holder through the solder joint 9.
  • the portion 25, the sheet portion 32 is spliced to the front mirror portion 25, for example, and then the output mirror 11 is bonded (for example, glued) to the sheet portion 32, and the threaded hole 10 is provided on the front mirror portion 25 for use.
  • a spring 22 is connected to the inner side of the front mirror portion 25, and the negative electrode 21 is placed on the nozzle of the discharge tube 18 by the spring 22 and connected to the front mirror portion 25.
  • the surface of the sheet portion 31 for bonding the entire mirror 1 and the sheet portion 32 may be bonded to the sheet portion 31 and before the output mirror 11 is bonded to the sheet portion 32.
  • the surface for bonding the output mirror 11 is ground and simultaneously detected. For example, it can be detected by a self-collimating inner focusing telescope (also called a collimator) so that the surface after grinding is perpendicular to the discharge tube 18.
  • the central shaft preferably, causes the ground surface to be coaxial with the discharge tube 18. Grinding can be carried out by hand or by using an electric grinder under numerical control to achieve the requirements of the present invention. In addition, CNC tool milling can also be used to achieve the grinding effect.
  • the electric motor can be mounted on a multi-axis, multi-angle CNC platform that can swing back and forth, left and right, up and down, and then adjust its position and angle to make it thin.
  • the surface of the portion 31 for bonding the full-mirror 1 and the use of the sheet portion 32 Milling is performed on the surface of the bonded output mirror 11, and may be used in combination with milling so that the surface of the sheet portion 31 for bonding the full-mirror 1 and the surface of the sheet portion 32 for bonding the output mirror 11 are vertical.
  • the full-mirror 1 is bonded to the sheet portion 31 and the output mirror 11 is bonded to the sheet portion 32, it is necessary to ensure that the mirror faces of the full-mirror 1 and the output mirror 11 are perpendicular to the central axis of the discharge tube 18.
  • the mirror faces of the full mirror 1 and the output mirror 11 are made coaxial with the discharge tube 18.
  • matching means that the mutually matching members can be fixedly sealed, not limited to the shape, size, etc. of the members, and the components that match each other without adverse effects
  • the shape, size, etc. may vary.
  • matching sealing of glass there is a corresponding matching sealing metal material for different materials of glass, which has strict expansion coefficient requirements for the metal.
  • the present invention is not limited thereto, and those skilled in the art may use appropriate sealing connections as needed, for example It is also possible to use a method such as sintering as long as the sealing connection is fixed and not adjustable.
  • the metal ring may include only two portions (sheet portion and metal). Another part of the ring).
  • the foregoing is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto.
  • the embodiments of the present invention may omit some of the technical features described above, and only solve the existing parts in the prior art.
  • the technical problems, and the technical features disclosed may be combined in any way, and any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the present invention are covered by the scope of the present invention. Accordingly, the scope of the invention is defined by the scope of the appended claims.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Laser Beam Processing (AREA)
  • Laser Surgery Devices (AREA)

Abstract

L'invention concerne un tube laser au dioxyde de carbone gazeux et son procédé de préparation. Le tube laser au dioxyde de carbone gazeux comprend des lentilles de laser (1, 11) et un tube de verre (20), caractérisé en ce que les lentilles de laser (1, 11) sont scellées fixement et reliées à des ports du tube de verre par le biais de bagues de métal correspondant au coefficient d'expansion des ports du tube de verre (20), les bagues de métal étant agencées entre les lentilles de laser et les ports du tube de verre. Une bague de métal comprend une partie de Kovar (14), une partie de support de lentille (12) et une partie de feuille mince (32), lesdites parties étant scellées fixement et reliées. Les parties de Kovar (14) sont scellées et frittées aux ports du tube de verre (20), les lentilles de laser (1, 11) sont collées aux parties de feuilles minces (32), et les parties de feuilles minces (32) sont des structures de feuilles minces en métal annulaires.
PCT/CN2014/000601 2014-06-18 2014-06-18 Tube laser au dioxyde de carbone gazeux et son procédé de préparation WO2015192268A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480009212.4A CN105684242A (zh) 2014-06-18 2014-06-18 二氧化碳气体激光管及其制备方法
PCT/CN2014/000601 WO2015192268A1 (fr) 2014-06-18 2014-06-18 Tube laser au dioxyde de carbone gazeux et son procédé de préparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/000601 WO2015192268A1 (fr) 2014-06-18 2014-06-18 Tube laser au dioxyde de carbone gazeux et son procédé de préparation

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WO2015192268A1 true WO2015192268A1 (fr) 2015-12-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105684242A (zh) * 2014-06-18 2016-06-15 徐海军 二氧化碳气体激光管及其制备方法
US20230402806A1 (en) * 2021-07-15 2023-12-14 Chengdu Weeson Tech Co., Ltd. Positive high-voltage laser having super-long discharge tube

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111555102B (zh) * 2020-05-12 2022-11-15 南通斯派特激光科技有限公司 一种玻璃-金属封接结构激光管

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPS55103781A (en) * 1979-01-31 1980-08-08 Fujitsu Ltd Gas laser tube
JPS5670680A (en) * 1979-11-14 1981-06-12 Nec Corp Gas laser tube
JPS56165378A (en) * 1980-05-26 1981-12-18 Ushio Inc Gas laser tube
CN101262112A (zh) * 2008-01-25 2008-09-10 徐海军 一种新结构二氧化碳激光器
CN103682955A (zh) * 2013-12-20 2014-03-26 武汉金运激光股份有限公司 可反复充气的co2激光器及其充气方法
CN103825187A (zh) * 2014-02-27 2014-05-28 武汉斯利沃激光器技术有限公司 可反复充气的二氧化碳激光器及其充气方法

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CN1068218A (zh) * 1991-07-02 1993-01-20 东南大学 大功率气体激光器
CN201142513Y (zh) * 2007-12-28 2008-10-29 朱政荣 一种二氧化碳激光管
CN203193113U (zh) * 2013-03-15 2013-09-11 北京镭海激光科技有限公司 一种新型结构封离型二氧化碳激光管
WO2015192268A1 (fr) * 2014-06-18 2015-12-23 徐海军 Tube laser au dioxyde de carbone gazeux et son procédé de préparation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55103781A (en) * 1979-01-31 1980-08-08 Fujitsu Ltd Gas laser tube
JPS5670680A (en) * 1979-11-14 1981-06-12 Nec Corp Gas laser tube
JPS56165378A (en) * 1980-05-26 1981-12-18 Ushio Inc Gas laser tube
CN101262112A (zh) * 2008-01-25 2008-09-10 徐海军 一种新结构二氧化碳激光器
CN103682955A (zh) * 2013-12-20 2014-03-26 武汉金运激光股份有限公司 可反复充气的co2激光器及其充气方法
CN103825187A (zh) * 2014-02-27 2014-05-28 武汉斯利沃激光器技术有限公司 可反复充气的二氧化碳激光器及其充气方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105684242A (zh) * 2014-06-18 2016-06-15 徐海军 二氧化碳气体激光管及其制备方法
US20230402806A1 (en) * 2021-07-15 2023-12-14 Chengdu Weeson Tech Co., Ltd. Positive high-voltage laser having super-long discharge tube
US11876336B2 (en) * 2021-07-15 2024-01-16 Chengdu Weeson Tech Co., Ltd. Positive high-voltage laser having super-long discharge tube

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Publication number Publication date
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