An output mirror device for a carbon dioxide laser tube and a carbon dioxide laser tube

Abstract

The utility model relates to the field of laser tube, especially in a kind of carbon dioxide laser tube's output mirror device and a kind of carbon dioxide laser tube, output mirror device includes: mounting seat, annular groove and first passway are equipped with mutually intercommunicating and coaxial on mounting seat;Output mirror, output mirror is located in annular groove, and output mirror is compatible with annular groove, install output mirror in annular groove, then the mounting seat is placed in the light outlet passway of cooling device, to install output mirror in light outlet passway by mounting seat, to reduce the diameter of output mirror, to reduce the volume of output mirror, effectively save the production cost of output mirror, while the volume of output mirror reduces, also speed up the production efficiency of output mirror, further, annular groove and first passway coaxial arrangement, it is convenient for laser beam in carbon dioxide laser tube to pass through first passway and annular groove, emit from the center of output mirror, avoid the situation that laser beam deviates from the center, to ensure that carbon dioxide laser tube is efficient, stable.

Description

Technical Field

[0001] This utility model relates to the field of laser tubes, and in particular to an output mirror device for a carbon dioxide laser tube and a carbon dioxide laser tube. Background Technology

[0002] Current carbon dioxide lasers typically include a discharge tube, a water-cooling tube surrounding the discharge tube, a gas storage tube surrounding the water-cooling tube, a cathode and anode electrodes respectively located at both ends of the discharge tube, and an output window and a reflection window located at both ends of the gas storage tube. The reflection window includes a reflecting mirror and a reflecting mirror cooling device, and the output window includes an output mirror and an output mirror cooling device. The discharge tube is filled with carbon dioxide gas and other auxiliary gases. When a high voltage is applied to the electrodes, a glow discharge is generated in the discharge tube. After being reflected by the reflecting mirror and the output mirror, a laser beam is formed and emitted from the output mirror to obtain the final laser beam.

[0003] Zinc selenide has excellent optical properties in the infrared band, with low absorption, high transmittance and high reflectivity, and can withstand high-power laser irradiation. Therefore, most output lenses are generally made of zinc selenide. However, zinc selenide is expensive, which leads to high production costs for output lenses.

[0004] Currently, traditional output lenses are installed inside the light output channel of the cooling device. The output lens has the same diameter as the light output channel, resulting in a large output lens size and high production costs. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that the traditional output lens is installed in the light output channel of the cooling device, and the output lens has the same diameter as the light output channel, resulting in a large output lens size and high cost. This invention provides an output lens device for a carbon dioxide laser tube and a carbon dioxide laser tube.

[0006] In a first aspect, this utility model provides an output mirror device for a carbon dioxide laser tube, comprising:

[0007] The mounting base has an annular groove and a first channel that are interconnected and coaxial;

[0008] An output mirror is located within the annular groove and is adapted to fit the annular groove.

[0009] By setting an annular groove and a first channel on the mounting base, and then installing the output mirror in the annular groove, and placing the mounting base in the light output channel of the cooling device, the diameter of the output mirror is reduced, thereby reducing its volume and effectively saving production costs. At the same time, the reduced volume of the output mirror also speeds up production efficiency. Furthermore, the annular groove and the first channel are coaxially arranged, which facilitates the laser beam in the carbon dioxide laser tube to pass through the first channel and the annular groove and exit from the center of the output mirror, avoiding the laser beam deviating from the center, thus ensuring the efficient, stable, and high-precision operation of the carbon dioxide laser tube.

[0010] Preferably, the inner diameter of the first channel is smaller than the inner diameter of the annular groove.

[0011] Preferably, an annular step is formed between the annular groove and the first channel, and the output mirror abuts against the annular step.

[0012] Preferably, the inner diameter of the annular groove is 0.4 to 0.6 times the outer diameter of the mounting base.

[0013] Preferably, the inner diameter of the annular groove is 0.5 times the outer diameter of the mounting base.

[0014] Preferably, the mounting base is a silicon-based structural component.

[0015] In a second aspect, this application also discloses a carbon dioxide laser tube, including a gas storage tube, a cooling device installed at the light-emitting end of the gas storage tube, a light-emitting channel inside the cooling device, and the output mirror device described in this application. The mounting base is located inside the light-emitting channel, and the annular groove, the first channel, and the light-emitting channel are coaxial.

[0016] This application utilizes a carbon dioxide laser tube, including a gas storage tube and a cooling device. The cooling device is connected to the light-emitting end of the gas storage tube, and the output mirror is set in the annular groove of the mounting base. The mounting base is then installed in the light-emitting channel to reduce the diameter of the output mirror, thereby reducing its volume and effectively saving production costs. At the same time, the reduced volume of the output mirror also speeds up production efficiency. Furthermore, the annular groove, the first channel, and the light-emitting channel are coaxial, which facilitates the laser beam in the carbon dioxide laser tube to pass through the output mirror and then be emitted from the cooling device.

[0017] Preferably, the mounting base is located inside the end of the light-emitting channel near the gas storage pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. The output mirror device of this application, by setting an annular groove and a first channel on the mounting base, then installing the output mirror in the annular groove, and then placing the mounting base in the light output channel of the cooling device, thereby reducing the diameter of the output mirror and thus reducing its volume, effectively saving the production cost of the output mirror. At the same time, the reduced volume of the output mirror also speeds up the production efficiency of the output mirror. Furthermore, the annular groove and the first channel are coaxially arranged, which facilitates the laser beam in the carbon dioxide laser tube to pass through the first channel and the annular groove and be emitted from the center of the output mirror, avoiding the laser beam deviating from the center, so as to ensure the efficient, stable and high-precision operation of the carbon dioxide laser tube.

[0020] 2. The carbon dioxide laser tube of this application includes a gas storage tube and a cooling device. The cooling device is connected to the light-emitting end of the gas storage tube. The output mirror is set in the annular groove of the mounting base, and then the mounting base is installed in the light-emitting channel to reduce the diameter of the output mirror, thereby reducing the volume of the output mirror and effectively saving the production cost of the output mirror. At the same time, the reduction in the volume of the output mirror also speeds up the production efficiency of the output mirror. Furthermore, the annular groove, the first channel and the light-emitting channel are coaxial, which facilitates the laser beam in the carbon dioxide laser tube to pass through the output mirror and be emitted from the cooling device. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the mounting base in this application.

[0022] Figure 2 This is a top view of the mounting bracket in this application.

[0023] Figure 3 It is an assembly cross-sectional view of the mounting base and the output mirror.

[0024] Figure 4 This is a schematic diagram of the output mirror device mounted on a carbon dioxide laser tube.

[0025] Figure 5 This is a schematic diagram of the carbon dioxide laser tube of this application.

[0026] Marked in the image:

[0027] 1-Mounting base,

[0028] 11-Main Body

[0029] 11-Annular groove,

[0030] 12-First Channel

[0031] 13- Circular step section,

[0032] 2-Output Mirror

[0033] 3-Cooling device,

[0034] 31-light channel,

[0035] 4-Gas storage pipe,

[0036] 5-Water cooling pipe,

[0037] 6-Discharge tube. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0039] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0041] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0042] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0043] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0044] Example 1

[0045] like Figures 1-3 As shown, this embodiment discloses an output mirror device for a carbon dioxide laser tube, comprising:

[0046] Mounting base 1, the mounting base 1 is provided with an annular groove 11 and a first channel 12 that are interconnected and coaxial;

[0047] Output mirror 2 is located within an annular groove 11 and is adapted to fit annular groove 11.

[0048] In this embodiment, by setting an annular groove 11 and a first channel 12 on the mounting base 1, and then installing the output mirror 2 in the annular groove 11, and then placing the mounting base 1 in the light output channel 31 of the cooling device 3, the diameter of the output mirror 2 is reduced, thereby reducing the volume of the output mirror 2 and effectively saving the production cost of the output mirror 2. At the same time, the reduced volume of the output mirror 2 also speeds up the production efficiency of the output mirror 2. Furthermore, the annular groove 11 and the first channel 12 are coaxially arranged, which facilitates the laser beam in the carbon dioxide laser tube to pass through the first channel 12 and the annular groove 11 and be emitted from the center of the output mirror 2, avoiding the laser beam from deviating from the center, so as to ensure the efficient, stable and high-precision operation of the carbon dioxide laser tube.

[0049] In this application, when the laser beam irradiates the output mirror 2, the heat of the output mirror 2 follows a Gaussian distribution, with the highest temperature at the center and decreasing gradually from the center to the edge. Therefore, when the size of the output mirror 2 is large, the high temperature at the center and low temperature at the edge will cause compression changes, which can easily lead to deformation of the output mirror 2. Thus, the smaller the size of the output mirror 2, the smaller its deformation. This application reduces the size of the output mirror 2 by cooperating with the mounting base 1 and the output mirror 2, which can effectively reduce the degree of deformation of the output mirror 2.

[0050] In this application, the mounting base 1 is circular in shape, and along its axial direction, it is provided with an annular groove 11 and a first channel 12 that are interconnected and coaxial, and the annular groove 11 and the first channel 12 penetrate through the interior of the mounting base 1.

[0051] In this application, the output mirror 2 and the annular groove 11 are matched in size and shape, and the output mirror 2 and the annular groove 11 are interference fit.

[0052] In one or more embodiments, the inner diameter of the first channel 12 is smaller than the inner diameter of the annular groove 11.

[0053] Since the inner diameter of the first channel 12 is smaller than the inner diameter of the annular groove 11, the output mirror 2 is effectively prevented from entering the first channel 12 after it is installed in the annular groove 11.

[0054] In an optional embodiment, an annular step portion 13 is formed between the annular groove 11 and the first channel 12, and the output mirror 2 abuts against the annular step portion 13.

[0055] The output mirror 2 is abutted against the annular step portion 13 between the annular groove 11 and the first channel 12 to ensure the installation accuracy of the output mirror 2 and avoid the center of the output mirror 2 from shifting, which would affect the light output rate.

[0056] In one or more embodiments, the inner diameter of the annular groove 11 is 0.4 to 0.6 times the outer diameter of the mounting base 1.

[0057] Since the output mirror 2 is located in the annular groove 11 and the output mirror 2 is compatible with the annular groove 11, the size of the output mirror 2 is reduced accordingly after the size of the annular groove 11 is reduced. The mounting base 1 is located in the light output channel 31 of the cooling device 3, so the outer diameter of the mounting base 1 is equivalent to the original output mirror size.

[0058] The inner diameter of the annular groove 11 is 0.4 to 0.6 times the outer diameter of the mounting base 1. Therefore, the diameter of the output mirror 2 in this application is equivalent to 0.4 to 0.6 times the original output mirror diameter, thereby reducing the diameter of the output mirror 2 and thus reducing the volume of the output mirror 2, effectively saving the production cost of the output mirror 2. At the same time, the reduction in the volume of the output mirror 2 also speeds up the production efficiency of the output mirror 2.

[0059] In one or more embodiments, the mounting base 1 is a silicon structural component, that is, the mounting base 1 is made of a material with good thermal conductivity;

[0060] Silicon has good thermal conductivity and a high heat transfer coefficient, which allows the heat on the output mirror 2 to be quickly transferred to the mounting base 1. It is also low in cost and high in hardness, making it easy to grind and process. Furthermore, the coefficient of thermal expansion of silicon is basically the same as that of zinc selenide. During operation, the output mirror 2 and the mounting base 1 can change synchronously, which further reduces the deformation of the output mirror 2 and improves the service life of the carbon dioxide laser tube and the laser output weight of the carbon dioxide laser tube.

[0061] Example 2

[0062] Based on Example 1, in this example, the output mirror device of a carbon dioxide laser tube has an inner diameter of the annular groove 11 that is 0.5 times the outer diameter of the mounting base 1.

[0063] Since the output mirror 2 is located in the annular groove 11 and the output mirror 2 is compatible with the annular groove 11, the size of the output mirror 2 is reduced accordingly after the size of the annular groove 11 is reduced. The mounting base 1 is located in the light output channel 31 of the cooling device 3, so the outer diameter of the mounting base 1 is equivalent to the original output mirror size.

[0064] The inner diameter of the annular groove 11 is 0.5 times the outer diameter of the mounting base 1. Therefore, it is equivalent to the output mirror 2 of this application having a diameter that is half the original output mirror diameter, thereby effectively reducing the diameter of the output mirror 2 and thus reducing the volume of the output mirror 2, effectively saving the production cost of the output mirror 2. At the same time, the reduction in the volume of the output mirror 2 also speeds up the production efficiency of the output mirror 2.

[0065] Example 3

[0066] like Figure 4 , Figure 5 As shown, based on Embodiment 1 or Embodiment 2, this embodiment discloses a carbon dioxide laser tube, including a discharge tube 6, a water-cooling tube 5 sleeved outside the discharge tube 6, and a gas storage tube 4 sleeved outside the water-cooling tube 5.

[0067] A cooling device 3 is installed at the light-emitting end of the gas storage pipe 4. The cooling device 3 has a light-emitting channel 31 inside and also includes the output mirror device described in Embodiment 1. The mounting base 1 is located inside the light-emitting channel 31, and the annular groove 11, the first channel 12 and the light-emitting channel 31 are coaxially arranged.

[0068] The carbon dioxide laser tube of this embodiment includes a gas storage tube 4 and a cooling device 3. The cooling device 3 is connected to the light-emitting end of the gas storage tube 4. The output mirror 2 is disposed in the annular groove 11 of the mounting base 1, and then the mounting base 1 is installed in the light-emitting channel 31 to reduce the diameter of the output mirror 2, thereby reducing the volume of the output mirror 2 and effectively saving the production cost of the output mirror 2. At the same time, the reduction in the volume of the output mirror 2 also speeds up the production efficiency of the output mirror 2. Furthermore, the annular groove 11, the first channel 12 and the light-emitting channel 31 are coaxial, which facilitates the laser beam in the carbon dioxide laser tube to pass through the output mirror 2 and be emitted from the cooling device 3.

[0069] In an optional embodiment, the outer wall of the mounting base 1 is bonded to the inner wall of the light emission channel 31.

[0070] In an optional embodiment, the mounting base 1 is located inside the end of the light output channel 31 near the gas storage pipe 4.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An output mirror device for a carbon dioxide laser tube, characterized in that, include: Mounting base (1), wherein the mounting base (1) is provided with an annular groove (11) and a first channel (12) that are interconnected and coaxial; Output mirror (2), the output mirror (2) is located in the annular groove (11), and the output mirror (2) is adapted to the annular groove (11).

2. The output mirror device for a carbon dioxide laser tube according to claim 1, characterized in that, The inner diameter of the first channel (12) is smaller than the inner diameter of the annular groove (11).

3. The output mirror device for a carbon dioxide laser tube according to claim 2, characterized in that, An annular step portion (13) is formed between the annular groove (11) and the first channel (12), and the output mirror (2) abuts against the annular step portion (13).

4. The output mirror device for a carbon dioxide laser tube according to claim 2, characterized in that, The inner diameter of the annular groove (11) is 0.4 to 0.6 times the outer diameter of the mounting base (1).

5. The output mirror device for a carbon dioxide laser tube according to claim 4, characterized in that, The inner diameter of the annular groove (11) is 0.5 times the outer diameter of the mounting base (1).

6. The output mirror device for a carbon dioxide laser tube according to claim 1, characterized in that, The mounting base (1) is a silicon-based structural component.

7. A carbon dioxide laser tube, comprising a gas storage tube (4), wherein a cooling device (3) is installed at the light-emitting end of the gas storage tube (4), and the cooling device (3) has a light-emitting channel (31) inside, characterized in that, It also includes the output mirror device as described in any one of claims 1-6, wherein the mounting base (1) is located within the light output channel (31), and the annular groove (11), the first channel (12) and the light output channel (31) are coaxial.

8. A carbon dioxide laser tube according to claim 7, characterized in that, The mounting base (1) is located inside the end of the light output channel (31) near the gas storage pipe (4).

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