Auxiliary device for laser power test

Abstract

The utility model discloses a laser power test auxiliary device, which comprises a base, a fixing assembly, a beam expanding assembly and a laser power meter, and is characterized in that the fixing assembly is mounted on the base and is used for mounting a laser output head; the beam expanding assembly is used for expanding the laser output by the laser output head; the laser power meter is installed on the base and used for receiving the laser expanded by the beam expanding assembly and detecting the power of the laser. According to the laser power test auxiliary device provided by the embodiment of the invention, the laser output by the laser output head is expanded through the beam expanding assembly so as to reduce the energy density of the laser, then the laser expanded by the beam expanding assembly is transmitted to the laser power meter, and the power of the laser expanded by the laser is detected by the laser so as to reduce the energy density of the laser. The risk of laser breakdown of the laser power meter can be reduced.

Description

Technical Field

[0001] The present application relates to the field of laser technology, and in particular to a laser power test auxiliary device. Background Art

[0002] Lasers are lasers that use rare earth-doped glass fibers as gain media and are widely used in industrial manufacturing, medical treatment, military defense, and other fields. In the production and development of lasers, it is often necessary to detect the power of the laser output.

[0003] Since the laser energy density output by the laser is relatively high, especially for high-power lasers, when a laser power meter is used to detect lasers with high energy density, the laser may easily break through the laser power meter, causing damage to the laser power meter. Utility Model Content

[0004] The embodiment of the present application provides a laser power test auxiliary device, which aims to improve the problem that when the laser power meter detects a laser with a high energy density, the laser easily breaks through the laser power meter, causing damage to the laser power meter.

[0005] The present application provides a laser power test auxiliary device, including:

[0006] Base;

[0007] A fixing component, installed on the base, and used for installing a laser output head;

[0008] A beam expansion component, used for expanding the laser beam output by the laser output head;

[0009] A laser power meter is installed on the base, and is used to receive the laser beam expanded by the beam expansion assembly and detect the power of the laser beam.

[0010] In some embodiments, the beam expansion assembly includes a sleeve and a beam expansion lens, the sleeve has a through hole for the laser to pass through, and the through hole is used for the laser output head to be inserted, so that the sleeve is sleeved on the laser output head;

[0011] The beam expander is installed in the through hole and is used to expand the laser output by the laser output head.

[0012] In some embodiments, the through hole is formed with a mounting opening for mounting the beam expander at one end of the sleeve, and an abutment portion is convexly provided on the inner circumference of the through hole, and the abutment portion abuts against a side of the beam expander away from the mounting opening;

[0013] The beam expander assembly further includes a limiting member installed in the through hole, and the limiting member abuts against a side of the beam expander away from the abutting portion.

[0014] In some embodiments, an external thread is provided on the outer periphery of the limiting member, and an internal thread is provided on the inner peripheral surface of the through hole, and the external thread is threadedly connected to the internal thread.

[0015] In some embodiments, the abutting portion extends circumferentially along the through hole to form an annular structure; the limiting member extends circumferentially along the through hole to form an annular member structure.

[0016] In some embodiments, at least one notch is formed on a side of the limiting member away from the beam expander.

[0017] In some embodiments, the beam expander assembly further includes a first dust cover, and the first dust cover is used to cover one end of the sleeve where the installation opening is provided and cover the installation opening.

[0018] In some embodiments, an insertion opening for inserting the laser output head is formed at the other end of the sleeve of the through hole;

[0019] The beam expander assembly further includes a second dust cover, and the second dust cover is used to cover one end of the sleeve where the insertion opening is provided and cover the insertion opening.

[0020] In some embodiments, the beam expander assembly is connected to the fixing assembly; alternatively, the beam expander assembly is installed on the base.

[0021] In some embodiments, it further includes a housing, and the housing covers the base and encloses a receiving cavity with the base, and the fixing assembly, the beam expander assembly and the laser power meter are received in the receiving cavity.

[0022] The laser power test auxiliary device provided by the embodiment of the present application expands the laser output by the laser output head through the beam expander assembly to reduce the energy density of the laser, and then transmits the laser expanded by the beam expander assembly to the laser power meter, and the laser power meter detects the power of the expanded laser, which can reduce the risk of the laser breaking through the laser power meter. Description of the Drawings

[0023] The following will clearly show the technical solutions and other beneficial effects of the present application by describing the specific embodiments of the present application in detail in conjunction with the drawings.

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the laser power test auxiliary device provided by the embodiment of the present application;

[0025] Figure 2Schematic structural diagram of an embodiment of the base, fixing component, beam expander component, and laser power meter provided by an embodiment of the present application;

[0026] Figure 3 Schematic structural diagram of an embodiment of the beam expander component provided by an embodiment of the present application;

[0027] Figure 4 Exploded schematic structural diagram of an embodiment of the beam expander component provided by an embodiment of the present application;

[0028] Figure 5 is Figure 3 Cross-sectional view along the A-A direction in

[0029] Laser power test auxiliary device 100; base 110; fixing component 120; laser power meter 130; beam expander component 140; beam expander 141; sleeve 142; through hole 1421; mounting port 1422; insertion port 1423; abutting portion 1424; limiting member 143; notch 1431; first dust cover 144; first mounting hole 1441; second dust cover 145; second mounting hole 1451; housing 150; accommodation cavity 151; laser output head 200. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0032] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0034] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0035] An embodiment of the present application provides an auxiliary device for laser power testing. Details are described below respectively.

[0036] Figure 1 It is a schematic structural diagram of an embodiment of the auxiliary device for laser power testing provided by an embodiment of the present application. Figure 2 It is a schematic structural diagram of an embodiment of a base, a fixing component, a beam expanding component, and a laser power meter provided by an embodiment of the present application. As Figure 1 and Figure 2As shown in the figure, the laser power test auxiliary device 100 includes a base 110, a fixing component 120, and a laser power meter 130. The fixing component 120 and the laser power meter 130 are respectively installed on the base 110. The fixing component 120 is used to install the laser output head 200 to stably output laser light from the laser output head 200. Among them, the laser output head 200 is used to connect to the laser main body. The laser emitted by the laser main body is transmitted to the laser output head 200 and output from the output end of the laser output head 200. The laser power meter 130 is used to receive the laser output from the output end of the laser output head 200 and detect the power of this laser.

[0037] Since the energy density of laser light is usually relatively high, especially for high-power lasers, when using the laser power meter 130 to detect laser light with a high energy density, it is easy for the laser to break through the laser power meter 130, resulting in damage to the laser power meter 130.

[0038] To improve the above problems and reduce the risk of the laser power meter 130 being broken through by high-energy-density laser light, resulting in damage to the laser power meter 130. In the embodiments of the present application, as Figure 1 shown, the laser power test auxiliary device 100 may further include a beam expander assembly 140. The beam expander assembly 140 is used to expand the laser light output from the laser output head 200. The laser power meter 130 is used to receive the laser light expanded by the beam expander assembly 140 and detect the power of the laser light.

[0039] The laser power test auxiliary device 100 provided in the embodiments of the present application expands the laser light output from the laser output head 200 through the beam expander assembly 140 to reduce the energy density of the laser light, and then transmits the laser light expanded by the beam expander assembly 140 to the laser power meter 130. The laser power meter 130 detects the power of the expanded laser light, which can reduce the risk of the laser breaking through the laser power meter 130.

[0040] Figure 3 It is a schematic structural diagram of an embodiment of the beam expander assembly provided in the embodiments of the present application. Figure 4 It is an exploded structural diagram of an embodiment of the beam expander assembly provided in the embodiments of the present application. Figure 5 For Figure 3 the cross-sectional view along the A-A direction in

[0041] As Figures 3 to 5 shown, the beam expander assembly 140 may include a beam expander 141. The beam expander 141 is disposed opposite to the output end of the laser output head 200 and is located on the optical path between the output end of the laser output head 200 and the laser power meter 130, so that the laser light output from the output end of the laser output head 200 passes through the beam expander 141, and after being expanded by the beam expander 141 into a beam with a lower energy density, it is then transmitted to the laser power meter 130.

[0042] In some embodiments, the beam expansion assembly 140 may further include a sleeve 142, the sleeve 142 having a through hole 1421 for the laser to pass through, the through hole 1421 is used for the laser output head 200 to be inserted, so that the sleeve 142 is sleeved on the laser output head 200. When the sleeve 142 is sleeved on the laser output head 200, the output from the output end of the laser output head 200 will pass through the through hole 1421 of the sleeve 142 and be emitted from the end of the through hole 1421 away from the laser output head 200.

[0043] Among them, the beam expander 141 is installed in the through hole 1421 and is used to expand the laser output by the laser output head 200, so that the installation of the beam expander 141 is more convenient. By inserting the laser output head 200 into the through hole 1421 of the sleeve 142 and sleeved on the laser output head 200, the beam expander 141 can be aligned with the laser output head 200, and the laser output from the output end of the laser output head 200 can accurately pass through the beam expander 141.

[0044] In some embodiments, Figures 3 to 5 As shown, the through hole 1421 is formed with a mounting opening 1422 for mounting the beam expander 141 at one end of the sleeve 142, and the beam expander 141 is mounted into the through hole 1421 from the mounting opening 1422 of the sleeve 142. Among them, an abutment portion 1424 may be convexly provided on the inner circumference of the through hole 1421, so that the abutment portion 1424 abuts against a side of the beam expander 141 away from the mounting opening 1422, thereby limiting the movement of the beam expander 141 in a direction away from the mounting opening 1422.

[0045] In addition, the beam expander assembly 140 also includes a limit member 143 installed in the through hole 1421, and the limit member 143 abuts against the side of the beam expander 141 away from the abutment portion 1424, thereby limiting the movement of the beam expander 141 toward the mounting port 1422, so as to stably position the beam expander 141 in the through hole 1421 of the sleeve 142.

[0046] The stopper 143 can be threadedly connected to the inner circumference of the through hole 1421, thereby improving the connection strength between the stopper 143 and the sleeve 142, so as to improve the stability of the position limit of the beam expander 141. Specifically, an external thread can be provided on the outer circumference of the stopper 143, and an internal thread can be provided on the inner circumference of the through hole 1421 of the sleeve 142, and the external thread is threadedly connected to the internal thread, so that the stopper 143 and the sleeve 142 are fixedly connected together.

[0047] In some embodiments, Figure 4As shown, the abutting portion 1424 can extend circumferentially along the through hole 1421 of the sleeve 142 to form an annular structure, so that the abutting portion 1424 can abut against the circumferential edge of the beam expander 141 along the through hole 1421, thereby improving the limiting effect on the beam expander 141. Specifically, the cross-sectional shape of the beam expander 141 in the radial direction of the through hole 1421 is circular. The surface of the beam expander 141 facing the mounting port 1422 is a curved surface. The radial cross-sectional shape of the through hole 1421 of the sleeve 142 is circular. The abutting portion 1424 is an annular structure extending along the axial direction of the through hole 1421.

[0048] In addition, as Figure 4 shown, the limiting member 143 can extend circumferentially along the through hole 1421 of the sleeve 142 to form an annular structure, so that the limiting member 143 can abut against the four peripheral edges of the side of the beam expander 141 close to the mounting port 1422, thereby improving the limiting effect of the limiting member 143 on the beam expander 141. Specifically, the limiting member 143 is an annular structure extending circumferentially along the through hole 1421 of the sleeve 142. The limiting member 143 has a light-transmitting hole. When the laser output from the output end of the laser output head 200 is expanded by the beam expander 141, it passes through the light-transmitting hole of the limiting member 143 and exits from the mounting port 1422 of the sleeve 142.

[0049] In some embodiments, as Figure 4 shown, at least one notch 1431 is formed on the side of the limiting member 143 facing away from the beam expander 141, so that an operator can insert a tool into the notch 1431 of the limiting member 143 and drive the limiting member 143 to move within the through hole 1421 of the sleeve 142. Specifically, a plurality of notches 1431 are formed on the side of the limiting member 143 facing away from the beam expander 141. The plurality of notches 1431 are sequentially and spaced apart circumferentially along the through hole 1421. The notch 1431 penetrates the limiting member 143 in the radial direction of the through hole 1421.

[0050] In some embodiments, the diameter of the light-transmitting hole of the limiting member 143 can be greater than or equal to the diameter of the through hole 1421 at the abutting portion 1424, so as to avoid the problem that the size of the light-transmitting hole of the limiting member 143 is too small and blocks the laser output from the side of the beam expander 141 facing the mounting port 1422.

[0051] In some embodiments, as Figures 3 to 5 shown, the beam expansion assembly 140 further includes a first dust cover 144, which is used to cover one end of the sleeve 142 where the mounting port 1422 is opened and cover the mounting port 1422, thereby preventing external impurities such as dust and water vapor from entering the through hole 1421 through the mounting port 1422 of the sleeve 142 and contaminating the surface of the beam expander 141 facing the mounting port 1422, and further causing the problem that the laser forms burn marks on the surface of the beam expander 141 facing the mounting port 1422.

[0052] Among them, the material of the first dust cover 144 can be a transparent material, a semi-transparent material or a non-transparent material. When the first dust cover 144 is a semi-transparent material or a non-transparent material, the first dust cover 144 can be removed before the laser power test auxiliary device 100 starts testing the laser power. When the material of the first dust cover 144 is a material with a relatively high light transmittance, the first dust cover 144 can be kept covering the end of the sleeve 142 where the installation opening 1422 is provided all the time.

[0053] Specifically, a first installation hole 1441 is provided at one end of the first dust cover 144, and the first installation hole 1441 is a blind hole. One end of the sleeve 142 where the installation opening 1422 is provided is inserted into the first installation hole 1441, so that the first dust cover 144 covers the end of the sleeve 142 where the installation opening 1422 is provided and covers the installation opening 1422. Among them, the sleeve 142 and the first installation hole 1441 can be in a hard fit, so that the first dust cover 144 stably covers the end of the sleeve 142 where the installation opening 1422 is provided.

[0054] As Figure 5 shown, an insertion port 1423 for inserting the laser output head 200 is formed at the other end of the through hole 1421 of the sleeve 142. The laser output end is inserted into the through hole 1421 from the insertion port 1423, so that the sleeve 142 is sleeved on the laser output end.

[0055] In some embodiments, the beam expander assembly 140 can further include a second dust cover 145, which is used to cover the end of the sleeve 142 where the insertion port 1423 is provided and cover the insertion port 1423, so as to prevent external dust, water vapor and other impurities from entering the through hole 1421 through the insertion port 1423 of the sleeve 142 and contaminating the surface of the beam expander 141 facing the insertion port 1423, thereby causing the problem that laser burns are formed on the surface of the beam expander 141 facing the insertion port 1423.

[0056] Among them, the material of the second dust cover 145 can be a transparent material, a semi-transparent material or a non-transparent material. When the sleeve 142 of the beam expander assembly 140 is sleeved on the laser output head 200, the second dust cover 145 can be removed from the end of the sleeve 142 where the insertion port 1423 is provided.

[0057] Specifically, one end of the second dust cover 145 is provided with a second mounting hole 1451, and the second mounting hole 1451 is a blind hole. One end of the sleeve 142 provided with an insertion port 1423 is inserted into the second mounting hole 1451, so that the second dust cover 145 covers one end of the sleeve 142 provided with the insertion port 1423 and covers the insertion port 1423. Among them, the sleeve 142 and the second mounting hole 1451 can be in an interference fit, so that the second dust cover 145 stably covers one end of the sleeve 142 provided with the insertion port 1423.

[0058] In some embodiments, the beam expander assembly 140 can be connected to the fixing assembly 120, so that the position of the beam expander assembly 140 is kept stable. When the laser output head 200 is connected to the beam expander assembly 140, the laser output head 200 can be quickly positioned. Of course, the beam expander assembly 140 can also be installed on the base 110, so that the position of the beam expander assembly 140 is kept stable.

[0059] In other embodiments, the beam expander assembly 140 can also have no connection relationship with the fixing assembly 120 or the base 110. Instead, after the laser output head 200 is installed on the fixing assembly 120, the beam expander assembly 140 is connected to the laser output head 200.

[0060] In some embodiments, as Figure 1 shown, the laser power test auxiliary device 100 can further include a housing 150. The housing 150 covers the base 110 and encloses a receiving cavity 151 with the base 110. The fixing assembly 120, the beam expander assembly 140 and the laser power meter 130 are received in the receiving cavity 151. Thus, the laser output from the output end of the laser output head 200 can be isolated by the housing 150, avoiding damage caused by the laser directly irradiating the human body or other objects.

[0061] Among them, the surfaces of the base 110 and the housing 150 can be matte-treated to improve the absorption rate of the base 110 and the housing 150 to the laser.

[0062] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0063] The above has introduced in detail an auxiliary device for laser power testing provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A laser power test auxiliary device, characterized in that: include: Base; A fixing component, installed on the base, and used for installing a laser output head; A beam expansion component, used for expanding the laser beam output by the laser output head; A laser power meter is installed on the base, and is used to receive the laser beam expanded by the beam expansion assembly and detect the power of the laser beam.

2. The laser power test auxiliary device according to claim 1, characterized in that: The beam expansion assembly comprises a sleeve and a beam expansion mirror, wherein the sleeve has a through hole for the laser to pass through, and the through hole is used for the laser output head to be inserted, so that the sleeve is sleeved on the laser output head; The beam expander is installed in the through hole and is used to expand the laser output by the laser output head.

3. The laser power test auxiliary device according to claim 2, characterized in that: The through hole is formed with a mounting opening for mounting the beam expander at one end of the sleeve, and an abutment portion is convexly provided on the inner circumferential surface of the through hole, and the abutment portion abuts against a side of the beam expander away from the mounting opening; The beam expansion assembly further includes a stopper installed in the through hole, wherein the stopper abuts against a side of the beam expander away from the abutting portion.

4. The laser power test auxiliary device according to claim 3, characterized in that: The outer circumference of the limiting member is provided with an external thread, the inner circumference of the through hole is provided with an internal thread, and the external thread is threadably connected with the internal thread.

5. The laser power test auxiliary device according to claim 3, characterized in that: The abutment portion extends along the circumference of the through hole to form an annular structure; the limiting member extends along the circumference of the through hole to form an annular member structure.

6. The laser power test auxiliary device according to claim 4, characterized in that: At least one notch is formed on a side of the limiting member away from the beam expander.

7. The laser power test auxiliary device according to claim 3, characterized in that: The beam expansion assembly further includes a first dust cover, which is used to cover an end of the sleeve where the mounting opening is opened, and to cover the mounting opening.

8. The laser power test auxiliary device according to claim 3, characterized in that: The through hole is formed with an insertion port for inserting the laser output head at the other end of the sleeve; The beam expansion assembly further includes a second dust cover, which is used to cover an end of the sleeve where the insertion port is opened, and to cover the insertion port.

9. The laser power test auxiliary device according to any one of claims 1 to 8, characterized in that: In the laser power test auxiliary device, the beam expanding component is connected to the fixing component; or, the beam expanding component is installed on the base.

10. The laser power test auxiliary device according to any one of claims 1 to 8, characterized in that: It also includes a shell, which is covered on the base and enclosed with the base to form a containing cavity, and the fixing component, the beam expansion component and the laser power meter are contained in the containing cavity.

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