A laser calibration device and calibration method

Abstract

The application discloses a laser calibration device and a calibration method, relates to the technical field of laser calibration, and is used for calibrating a long rifle barrel firearm. The long rifle barrel firearm has a long rifle barrel, and the laser calibration device is arranged in the long rifle barrel. The laser calibration device comprises a laser module and a plug rod. The laser module has a first end and a second end which are oppositely arranged in a first direction. The first end of the laser module is used for emitting laser. The plug rod is arranged at the second end of the laser module. At least two elastic deformation portions are arranged on the plug rod. The elastic deformation portions are distributed in the axial direction of the plug rod. Each elastic deformation portion is in contact with the inner wall of the long rifle barrel, so that the plug rod is coaxial with the long rifle barrel. The application is characterized in that the multiple support points are distributed in the axial direction of the plug rod. The position of the plug rod in the long rifle barrel is stable, and the plug rod is difficult to shake, tilt or be eccentric. The laser emitted by the laser calibration device is coaxial with the axial direction of the long rifle barrel, and the calibration precision is high.

Description

Technical Field

[0001] This application relates to the field of laser calibration technology, and in particular to a laser calibration device and calibration method. Background Technology

[0002] In the use and maintenance of firearms, the calibration of the aiming device is a key step in ensuring shooting accuracy. Laser calibration devices are usually used to assist in the calibration of the aiming device.

[0003] Currently, most commonly used laser calibration devices adopt a single-pivot or short-rod insertion structure, in which the laser calibration device is inserted into the gun barrel for calibration.

[0004] However, when the aforementioned laser calibration device is applied to long-barreled firearms such as rifles and shotguns, the device is prone to radial wobbling, tilting, or eccentricity within the barrel due to the limited number of support points and insufficient length of the rod extending into the barrel. This makes it difficult to ensure that the calibration beam emitted by the laser calibration device is coaxial with the barrel axis, resulting in low calibration accuracy. Summary of the Invention

[0005] The main purpose of this application is to provide a laser calibration device and calibration method, which aims to solve the problem that traditional laser calibration devices are difficult to apply to long-barreled firearms.

[0006] To achieve the above objectives, this application provides a laser calibration device for calibrating long-barreled firearms. The long-barreled firearm has a long barrel, and the laser calibration device is inserted into the long barrel. The laser calibration device includes a laser module and a insertion rod. The laser module has a first end and a second end disposed opposite to each other in a first direction. The first end of the laser module is used to emit laser light, and the first direction is the axial direction of the laser light. The insertion rod is disposed at the second end of the laser module, and the axial direction of the insertion rod coincides with the axial direction of the laser light. The insertion rod is inserted into the long barrel. The insertion rod has at least two elastic deformation portions, which are spaced apart along the axial direction of the insertion rod. Each elastic deformation portion abuts against the inner wall of the long barrel, so that the insertion rod is coaxial with the long barrel.

[0007] Optionally, all the elastic deformation portions are first deformation portions; the insertion rod includes a plurality of rod segments spaced apart along its own axial direction, and adjacent rod segments are connected by the first deformation portions.

[0008] Optionally, the elastic deformation portion comprises a second deformation portion and at least one first deformation portion; the insertion rod includes a plurality of rod segments spaced apart along its own axial direction, with adjacent rod segments connected by the first deformation portion; the second deformation portion is provided at the end of the insertion rod away from the laser module.

[0009] Optionally, the diameter of the rod segment is the same as the inner diameter of the long barrel.

[0010] Optionally, the first deformable portion includes: a plurality of elastic sheets, which are arranged around adjacent rod segments in the first direction, with each end of an elastic sheet connected to a rod segment, and a gap between adjacent elastic sheets; wherein, the middle region of the elastic sheet is a first protruding region, and the distance between the first protruding region and the axis of the rod segment is greater than the radius of the rod segment.

[0011] Optionally, the second deformable portion includes: a plurality of elastic locking portions, which are arranged around the end of the insertion rod away from the laser module in the first direction, and there is a gap between adjacent elastic locking portions; wherein, the middle region of the elastic locking portion is a second protruding region, and the distance between the second protruding region and the axis of the rod segment is greater than the radius of the rod segment.

[0012] Optionally, the end of the second deformed portion away from the laser module is cone-shaped.

[0013] Optionally, the laser calibration device further includes: a battery module, one end of which is fixed to the laser module and the two are electrically connected; wherein the extension direction of the battery module is perpendicular to the first direction.

[0014] In addition, this application also provides a laser calibration method applied to the aforementioned laser calibration device. The laser calibration method includes: observing the target surface through a sight, aligning the sight's front sight with the center of the target paper; observing the deviation between the laser spot and the sight's front sight, adjusting the sight's adjustment knob until the laser spot and the sight's front sight completely coincide; and removing the laser calibration device.

[0015] Optionally, the sight adjustment knob includes a windage adjustment knob and an elevation adjustment knob; observing the deviation between the laser spot and the sight's frontispiece and adjusting the sight adjustment knob includes: observing the elevation, elevation, left, and right deviations between the laser spot and the sight's frontispiece; if the spot is off to the right, adjust the windage adjustment knob to the right; if the spot is off to the left, adjust the windage adjustment knob to the left; if the spot is off to the top, adjust the elevation adjustment knob upwards; if the spot is off to the bottom, adjust the elevation adjustment knob downwards.

[0016] The laser calibration device proposed in this application involves inserting a rod into a long barrel during use. An elastic deformation portion on the rod abuts against the inner wall of the long barrel, maintaining the axial direction of the rod aligned with that of the long barrel. Simultaneously, multiple contact areas between the elastic deformation portions and the long barrel form multiple spaced support points. These support points are spaced apart along the axial direction of the rod, ensuring a stable position of the rod within the long barrel and preventing problems such as shaking, tilting, or eccentricity. This guarantees that the laser emitted by the calibration device is aligned with the axial direction of the long barrel, resulting in high calibration accuracy. Attached Figure Description

[0017] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed herein.

[0019] Figure 1 This is a schematic diagram of the overall structure of a laser calibration device provided in an embodiment of this application; Figure 2 for Figure 1 A structural schematic diagram from another perspective of the embodiment; Figure 3 for Figure 1 A schematic diagram of the structure after inserting the long gun barrel in the Chinese embodiment; Figure 4 A flowchart of a laser calibration method provided in this application embodiment; In the diagram: 1. Long gun barrel; 2. Laser module; 3. Insert rod; 4. Elastic sheet; 5. Elastic locking part; 6. Battery module.

[0020] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0025] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a schematic diagram of the overall structure of a laser calibration device provided in an embodiment of this application; Figure 2 for Figure 1 A structural schematic diagram from another perspective of the embodiment; Figure 3 for Figure 1 A schematic diagram of the structure after inserting the long gun barrel in the Chinese embodiment; Figure 4 This is a flowchart of a laser calibration method provided in an embodiment of this application.

[0027] refer to Figures 1-3This application provides a laser calibration device for calibrating long-barreled firearms. The long-barreled firearm has a long barrel 1, and the laser calibration device is inserted into the long barrel 1. The laser calibration device may include a laser module 2 and a rod 3. The laser module 2 has a first end and a second end that are arranged opposite to each other in a first direction. The first end of the laser module 2 is used to emit laser light, and the first direction is the axis of the laser light. The rod 3 is disposed at the second end of the laser module 2, and the axis of the rod 3 coincides with the axis of the laser light. The rod 3 is inserted into the long barrel 1. The rod 3 is provided with at least two elastic deformation parts, and each elastic deformation part is spaced apart in the axis of the rod 3. Each elastic deformation part abuts against the inner wall of the long barrel 1 so that the rod 3 is coaxial with the long barrel 1.

[0028] The laser calibration device proposed in this application involves inserting a rod 3 into a long barrel 1 during use. An elastic deformation portion on the rod 3 abuts against the inner wall of the long barrel 1, maintaining the axial direction of the rod 3 aligned with the axial direction of the long barrel 1. Simultaneously, multiple elastic deformation portions and their contact areas with the long barrel 1 form multiple spaced support points. These support points are spaced apart along the axial direction of the rod 3, ensuring a stable position of the rod 3 within the long barrel 1 and preventing problems such as shaking, tilting, or eccentricity. This guarantees that the laser emitted by the laser calibration device is aligned with the axial direction of the long barrel 1, resulting in high calibration accuracy.

[0029] It should be noted that, as Figure 1 As shown, the first direction is Figure 1 In the X direction, the axis of the laser beam emitted by the laser module 2 is the first direction. When the insertion rod 3 is inserted into the long gun barrel 1, the axis of the long gun barrel 1, the axis of the insertion rod 3, and the axis of the laser beam emitted by the laser module 2 coincide. This coincidence can also be understood as coaxiality.

[0030] Furthermore, in the first direction, the length of the insertion rod 3 can be relatively long. For example, the length of the insertion rod 3 can account for more than 50% of the length of the long barrel 1. In this way, when the insertion rod 3 is inserted into the long barrel 1, the connection between the laser calibration device and the long barrel 1 is more stable.

[0031] It should be understood that there are many traditional structures for emitting lasers, so we will not go into detail about how laser module 2 achieves laser emission here.

[0032] The laser module 2 can be powered by a battery, so that the laser calibration device can be used anytime, anywhere, even when carried out, without having to look for a power source, making it more convenient to use.

[0033] Of course, the battery can be installed inside the laser module 2, just like in the traditional solution. The laser module 2 can have two parts that are screwed together, with the battery installed inside. The two parts can be separated by rotating the module to replace the battery.

[0034] refer to Figure 1 In an exemplary embodiment, the laser calibration device may further include: a battery module 6, one end of which is fixed to the laser module 2 and the two are electrically connected; wherein the extending direction of the battery module 6 is perpendicular to the first direction.

[0035] It should be understood that the battery module 6 contains a battery, and the extension direction of the battery module 6 is perpendicular to the first direction. In this way, the operator can hold the battery module 6, thereby driving the insertion rod 3 to insert and remove it in the long gun barrel 1, making it easier to apply force and operate more conveniently.

[0036] It should be noted that the battery module 6 can also be installed in the same way as a traditional battery, with a screw-on end cap at the end of the battery module 6 away from the laser module 2, so as to facilitate battery replacement.

[0037] Of course, the switch for the laser calibration device can also be located on the end cover.

[0038] In this embodiment, the laser calibration device can switch between different modes by pressing a switch, such as adaptation mode, gun calibration mode, and power-off mode. In the power-off state, pressing the switch switches to adaptation mode. In adaptation mode, the laser emitted by the laser calibration device adopts a flash laser that is visible to the human eye, so that the operator can quickly locate the laser spot. At the same time, it can effectively reduce power consumption and extend the service life. Pressing the switch again switches to gun calibration mode. In gun calibration mode, the laser emitted by the laser calibration device forms a fixed laser spot. Pressing the switch again switches to power-off mode, and the laser calibration device enters the power-off state.

[0039] In an exemplary embodiment, all elastic deformation portions are first deformation portions; the insertion rod 3 may include multiple rod segments spaced apart along its own axial direction, with adjacent rod segments connected by first deformation portions. In an exemplary embodiment, the elastic deformation portion consists of a second deformation portion and at least one first deformation portion; the insertion rod 3 may include multiple rod segments spaced apart along its own axial direction, with adjacent rod segments connected by first deformation portions; a second deformation portion is provided at the end of the insertion rod 3 away from the laser module 2.

[0040] Specifically, there are two schemes for the multiple elastic deformation parts. One scheme is that the elastic deformation parts are all first deformation parts set on the insertion rod 3, but not at the end of the insertion rod 3, so that multiple support points are formed on the insertion rod 3 and contact the inner wall of the long gun barrel 1 for support. The other scheme is that the elastic deformation part is a second deformation part and at least one first deformation part, that is, the second deformation part is set at the end of the insertion rod 3 away from the laser module 2, and the first deformation part is the same as above, so that multiple support points are formed at the end of the insertion rod 3 and on the insertion rod 3 and contact the inner wall of the long gun barrel 1 for support.

[0041] In this embodiment, there are two elastic deformation parts, namely a first deformation part and a second deformation part. This allows two support points to be formed on the insertion rod 3, which are located on the inner wall of the long gun barrel 1 for contact support, ensuring the stability of the insertion rod 3. At the same time, when the insertion rod 3 is inserted into the long gun barrel 1, the friction between the two elastic deformation parts and the long gun barrel 1 can be kept at a smaller level compared to when multiple elastic deformation parts are used.

[0042] Furthermore, in the axial direction of the insertion rod 3, the length of the insertion rod 3 is a, the distance between the first deformed part and the second deformed part is b, and b / a≥60%. In this way, when both the first deformed part and the second deformed part are in contact with the inner wall of the long gun barrel 1, the span of the two support points is kept within a large range, making the connection of the laser calibration device more stable.

[0043] refer to Figure 3 In an exemplary embodiment, the diameter of the rod segment is the same as the inner diameter of the long gun barrel 1, so that each rod segment of the insertion rod 3 fits more tightly and stably with the inner wall of the long gun barrel 1, further preventing the laser calibration device from shaking.

[0044] refer to Figure 1 and Figure 2 In an exemplary embodiment, the first deformable portion may include: a plurality of elastic sheets 4, which are arranged around adjacent rod segments in a first direction, with each end of the elastic sheet 4 connected to a rod segment, and a gap between adjacent elastic sheets 4; wherein, the middle region of the elastic sheet 4 is a first protruding region, and the distance between the first protruding region and the axis of the rod segment is greater than the radius of the rod segment.

[0045] Specifically, there can be four elastic plates 4, which are arranged around the first direction, and both ends of each elastic plate 4 are connected and fixed to the end of the rod segment.

[0046] The middle area of ​​the elastic plate 4 is the first protruding area. The distance between the first protruding area and the axis of the rod segment is greater than the radius of the rod segment. In other words, the middle area of ​​the elastic plate 4 will extend beyond the area between adjacent rod segments. When the insertion rod 3 is inserted into the long gun barrel 1, the elastic plate 4 is squeezed and deformed, so that the first protruding area of ​​the elastic plate 4 is squeezed back between the two rod segments. In this way, the elastic plate 4 will squeeze the inner wall of the long gun barrel 1 under the action of elastic force, thereby forming a support. When the insertion rod 3 is pulled out of the long gun barrel 1, the elastic plate 4 returns to its original shape, which is convenient for the next use.

[0047] refer to Figure 1 and Figure 2In an exemplary embodiment, the second deformable portion may include: a plurality of elastic locking portions 5, which are arranged around the end of the insertion rod 3 away from the laser module 2 in a first direction, and there is a gap between adjacent elastic locking portions 5; wherein, the middle region of the elastic locking portion 5 is a second protruding region, and the distance between the second protruding region and the axis of the rod segment is greater than the radius of the rod segment.

[0048] Specifically, there can be four elastic locking parts 5, which are arranged around the first direction, and one end of each elastic locking part 5 is connected to the end of the insertion rod 3 away from the laser module 2.

[0049] The middle area of ​​the elastic locking part 5 is the second protruding area. The distance between the second protruding area and the axis of the rod segment is greater than the radius of the rod segment. In other words, the middle area of ​​the elastic locking part 5 will exceed the diameter of the rod segment. When the insertion rod 3 is inserted into the long gun barrel 1, the elastic locking part 5 is squeezed and deformed. In this way, the elastic locking part 5 will squeeze the inner wall of the long gun barrel 1 under the action of elastic force, thereby forming a support. When the insertion rod 3 is pulled out of the long gun barrel 1, the elastic locking part 5 returns to its original shape, which is convenient for the next use.

[0050] Of course, both the first and second protruding areas are arc-shaped and fit against the inner wall of the long barrel 1 to ensure the contact effect.

[0051] In an exemplary embodiment, the end of the second deformable portion away from the laser module 2 is cone-shaped. Thus, when the cone-shaped region of the second deformable portion contacts the muzzle of the long barrel 1, it creates a guiding effect, facilitating the insertion of the second deformable portion into the long barrel 1.

[0052] refer to Figure 4 Based on the above embodiments, this application also provides a laser calibration method applied to the aforementioned laser calibration device. This laser calibration method specifically includes the following steps: S100. Observe the target surface through the sight and align the sight's front sight with the center of the target paper; S200. Observe the deviation between the laser spot and the sight's front sight, and adjust the sight adjustment knob until the laser spot and the sight's front sight are completely aligned. S300, Remove the laser calibration device.

[0053] In step S100, the firearm can be fixed in place to ensure its position is fixed and prevent changes in its position during sight adjustment, which could affect subsequent calibration.

[0054] It should be understood that the laser calibration device has already been inserted into the barrel at this point.

[0055] Specifically, the distance between the firearm and the target paper can be adjusted according to the actual situation. For example, if the firearm needs to be calibrated at a distance of 100m from the target, the distance between the firearm and the target paper can be 100m. The specific distance can be adjusted according to the actual situation, such as 50m, 100m, 200m, etc.

[0056] In an exemplary embodiment, after the laser calibration device is inserted into the long barrel 1, the laser calibration device can be rotated around a first direction to make it rotate. This allows the observer to check whether the laser spot formed on the target paper by the laser emitted by the laser calibration device moves while the firearm is fixed. If no movement occurs, it indicates that the axis of the laser coincides with the axis of the barrel, facilitating subsequent calibration. If movement occurs, it is observed whether the range of movement is within a threshold range. If it is within the threshold range, it indicates that the coaxiality between the axis of the laser and the axis of the barrel is high, and calibration can be performed. If it is not within the threshold range, it indicates that the coaxiality between the axis of the laser and the axis of the barrel is low, and the laser emission direction of the laser calibration device needs to be fine-tuned.

[0057] Specifically, the laser module 2 is usually surrounded by adjustment screws in multiple directions to drive the laser emitting component inside the laser module 2 for fine adjustment. There are many such traditional structures, so they will not be described in detail here.

[0058] In steps S200 and S300, the laser spot is made to completely overlap with the sight's front sight by adjusting the sight adjustment knob, and then the laser calibration device can be removed. At this time, the rifling of the firearm and the aiming line of the sight intersect at a distance of 100m from the target, thus completing the firearm calibration. During live-fire shooting, taking a windless condition as an example, the bullet will drop during its movement. Therefore, the distance the bullet drops at 100m can be calculated based on the muzzle velocity of the firearm. Then, the firearm is adjusted accordingly during shooting so that the area below the sight's front sight is aligned with the shooting position. This method of calculating bullet drop and adjusting the sight's aiming point is common in traditional methods and will not be elaborated here.

[0059] Of course, after calibration, you can also fire a live shot once with the front sight aligned with the center of the target paper to observe the bullet hole drop position and which point on the sight it falls on. Then you can use this point as the front sight for aiming.

[0060] In an exemplary embodiment, the sight adjustment knob may include a windage adjustment knob and an elevation adjustment knob; step S200, "observing the deviation between the laser spot and the sight's front sight, and adjusting the sight adjustment knob," may specifically include the following steps: Observe the vertical, horizontal, left, and right deviations of the laser spot from the sight's crosshair; If the light spot is off to the right, adjust the wind deflector knob to the right; If the light spot is off to the left, adjust the wind deflector knob to the left; If the light spot is too high, adjust the height adjustment knob upwards; If the light spot is too low, adjust the height adjustment knob downwards.

[0061] It should be understood that, taking the example of adjusting the windage knob to the right if the laser spot is off to the right, the aiming position of the sight will move to the right. Thus, when the front sight is aligned with the center of the target paper and remains stationary, the laser spot will move to the left and closer to the front sight, so that the laser spot and the front sight are completely aligned. Other adjustment methods are similar, and will not be elaborated here.

[0062] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A laser calibration device, characterized in that, For calibrating long-barreled firearms, the long-barreled firearms having long barrels, the laser calibration device being inserted into the long barrels; The laser calibration device includes: A laser module has a first end and a second end disposed opposite to each other in a first direction, wherein the first end of the laser module is used to emit laser light, and the first direction is the axis of the laser light. An insert rod is disposed at the second end of the laser module, the axis of the insert rod coincides with the axis of the laser, and the insert rod is inserted into the long gun barrel; The insertion rod is provided with at least two elastic deformation parts, and each elastic deformation part is distributed at intervals along the axial direction of the insertion rod. Each elastic deformation part abuts against the inner wall of the long gun barrel so that the insertion rod and the long gun barrel are coaxial.

2. The laser calibration device as described in claim 1, characterized in that, All of the elastic deformation portions are first deformation portions; The insertion rod includes multiple rod segments spaced apart along its own axial direction, and adjacent rod segments are connected by the first deformable portion.

3. The laser calibration device as described in claim 1, characterized in that, The elastic deformation portion comprises a second deformation portion and at least one first deformation portion; The insertion rod includes a plurality of rod segments spaced apart along its own axial direction, and adjacent rod segments are connected by the first deformable part; The second deformable portion is provided at the end of the insertion rod away from the laser module.

4. The laser calibration device as described in claim 2 or 3, characterized in that, The diameter of the rod segment is the same as the inner diameter of the long gun barrel.

5. The laser calibration device as described in claim 2 or 3, characterized in that, The first deformable part includes: Multiple elastic sheets are arranged around adjacent rod segments in a first direction, with each end of an elastic sheet connected to one of the rod segments, and gaps between adjacent elastic sheets. The middle region of the elastic sheet is a first protruding region, and the distance between the first protruding region and the axis of the rod segment is greater than the radius of the rod segment.

6. The laser calibration device as described in claim 3, characterized in that, The second deformable part includes: Multiple elastic locking parts are arranged around the first direction at the end of the insertion rod away from the laser module, and there is a gap between adjacent elastic locking parts; The middle region of the elastic locking part is a second protruding region, and the distance between the second protruding region and the axis of the rod segment is greater than the radius of the rod segment.

7. The laser calibration device as described in claim 3, characterized in that, The end of the second deformed portion away from the laser module is cone-shaped.

8. The laser calibration device as described in claim 1, characterized in that, The laser calibration device also includes: A battery module, one end of which is fixed to the laser module and the two are electrically connected; The extension direction of the battery module is perpendicular to the first direction.

9. A laser calibration method, characterized in that, The laser calibration method, applied to the laser calibration apparatus according to any one of claims 1 to 8, comprises: Observe the target surface through the sight and align the sight's front sight with the center of the target paper; Observe the deviation between the laser spot and the sight's front sight, and adjust the sight's adjustment knob until the laser spot and the sight's front sight are completely aligned; Remove the laser calibration device.

10. The laser calibration method as described in claim 9, characterized in that, The sight adjustment knobs include a windage adjustment knob and an elevation adjustment knob; adjusting the sight adjustment knobs to observe the deviation between the laser spot and the sight's front sight includes: Observe the vertical, horizontal, left, and right deviations of the laser spot from the sight's crosshair; If the light spot is off to the right, adjust the wind deflector knob to the right; If the light spot is off to the left, adjust the wind deflector knob to the left; If the light spot is too high, adjust the height adjustment knob upwards; If the light spot is too low, adjust the height adjustment knob downwards.

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