Adaptive cross-type laser aiming device

Abstract

An adaptive cross-type laser aiming device, comprising at least two lasers (3, 4) mounted on a gun barrel (1) or gun body (30) and capable of emitting line-shaped laser lights; the line-shaped laser lights emitted by the two lasers form an intersection point on a target surface (9). A plane swept by the line-shaped laser light emitted by each laser is paraxial with respect to the central axis (5) of the gun barrel; 'paraxial' may indicate that the plane swept by the line-shaped laser light emitted by each laser has a relatively small included angle with the central axis (5) of the gun barrel, or is parallel thereto, or is coincident therewith. The planes swept by the line-shaped laser lights emitted by the two lasers are two non-parallel planes, and the intersection point of the line-shaped linear laser lights emitted by the two lasers on the target surface is an aiming point.

Description

Adaptive cross-type laser aiming device Technical Field

[0001] This invention relates to the field of aiming devices for toy guns, and specifically to a laser aiming device based on the cross combination of two lasers emitting a straight line. Background Technology

[0002] Toy gun sights often employ point-laser aiming devices, illuminating the target with a point of laser light. Since this spot indicates the point of impact, it significantly improves the accuracy of toy gun shooting. However, laser aiming devices are difficult to mount inside the barrel, as the barrel also fires the bullet. Therefore, the laser aiming device needs to be mounted on the outside of the barrel or another part of the gun. Simultaneously, it's crucial to ensure that the laser emitted by the aiming device is essentially coaxial and parallel to the extension of the barrel's central axis. At long range, the angle of the laser aiming device can be finely adjusted to minimize the lateral distance between the bullet's trajectory and the laser's emission, meeting accuracy requirements. At close range, however, the distance between the laser aiming device and the barrel's central axis causes a significant error between the aiming point and the point of impact. Furthermore, within a certain distance from the muzzle, bullets fired from the muzzle travel in a straight line along the barrel's central axis, meaning the point of impact coincides with the barrel's central axis. Therefore, in order to improve the accuracy of the aiming point, it is necessary to minimize the distance between the aiming point and the central axis of the barrel. However, with existing laser aiming devices, the distance between the aiming point and the central axis of the barrel is actually the greatest at close range from the muzzle, which is not conducive to toy guns shooting at targets at close range.

[0003] Chinese patent number 200780010235.7, "Firearm Equipped with Embedded Laser Sight", discloses a scheme to embed a laser sight in the firearm mounting track. The purpose is to reduce the lateral distance between the laser emitted by the laser sight and the central axis of the gun barrel, thereby improving shooting accuracy and reducing error. However, it still has errors. The point laser emitted by the laser sight is still not coaxial with the axis of the gun barrel, so it still has a large error when shooting at close range. Technical issues

[0004] This invention addresses the shortcomings of existing technologies by disclosing an adaptive cross-type laser aiming device. Two lasers, capable of emitting linear laser beams in a straight line, are mounted on the barrel or body of the toy gun. The linear laser beams emitted by the two lasers intersect at a point on the target surface. By adjusting the positions of the two lasers, this intersection point is always positioned on the central axis of the toy gun barrel, thus serving as the aiming point and ensuring the accuracy of toy gun fire. The principle is as follows:

[0005] As shown in Figure 1, a target surface perpendicular to the central axis of the gun barrel is set at a preset distance from the muzzle. First, laser one is installed on the toy gun barrel or body. The position of laser one is adjusted so that a part of the central axis of the gun barrel is contained within the ABCD plane swept by the line-shaped laser emitted by laser one. The line segment BC is formed by the line-shaped laser emitted by laser one illuminating the target surface. As shown in Figure 2, laser two is installed in the same way. The position of laser two is adjusted so that a part of the central axis of the gun barrel is contained within the EFGH plane swept by the line-shaped laser emitted by laser two. The line segment FG is formed by the line-shaped laser emitted by laser two illuminating the target surface. As shown in Figure 3, laser one and laser two are installed on the toy gun barrel or body at the same time. The ABCD plane and the EFGH plane are set to be non-parallel. The two planes intersect by a straight line, and can only intersect by a straight line. Since the central axis of the gun barrel is contained in both planes, the straight line intersecting the two planes is collinear with the central axis of the gun barrel. Therefore, the point formed by the intersection of two lines on the target surface is located on the central axis of the barrel. This point is also the intersection of line segments BC and FG. This point is set as the aiming point, as it lies on the central axis of the barrel. Furthermore, at close range, when a toy bullet is fired from the toy gun barrel, it flies along the central axis of the barrel, making the aiming point accurate. Theoretically, the error between the aiming point and the toy bullet's trajectory is zero. Therefore, within a certain distance range, such as 0 to 3 meters or 0 to 5 meters, regardless of the distance between the target surface and the muzzle, the aiming point remains on the central axis of the barrel. Thus, the aiming point is always accurate and does not change with the distance between the target surface and the muzzle. This accuracy is essential for shooting small targets with toy guns, such as flies, mosquitoes, or small moths; without such accuracy, it is difficult to hit the target. Existing laser sights that emit point lasers cannot achieve this level of accuracy, as the lateral distance of the laser point from the central axis of the barrel changes with the distance between the target surface and the muzzle.

[0006] The above description shows that the central axis of the gun barrel is contained within the plane of the linear laser scan emitted by the two lasers. Alternatively, the positions of the two lasers can be set so that the plane swept by the linear laser emitted by the two lasers is parallel to the central axis of the gun barrel. In this way, the distance between the aiming point and the central axis of the gun barrel is fixed, and the aiming point obtained is relatively accurate.

[0007] The above-described central axis of the barrel being contained within the plane swept by the two laser beams and parallel to the plane swept by the two laser beams are ideal states, existing only in theory. In the actual product of this invention, during processing, production, assembly, and debugging, the central axis of the barrel will inevitably have a certain angle with the plane swept by the two laser beams. Therefore, the two laser beams form an intersection point on the target surface, which is the aiming point. The actual situation is that the plane swept by each laser beam is close to the central axis (5) of the barrel (1). Furthermore, the minimum angle between the central axis of the barrel and the plane swept by the two laser beams is no greater than 10°. At this point, the aiming point is basically accurate and can meet the requirements of actual use. When higher accuracy is required, the minimum angle between the central axis of the barrel and the plane swept by the two laser beams can be adjusted to make the minimum angle between the central axis of the barrel and the plane swept by the two laser beams smaller.

[0008] A bullet fired from the barrel travels along the central axis of the barrel within a certain range. Therefore, the intersection of the linear laser lines emitted by the two lasers is located near the point of impact. This intersection serves as the aiming point. When the surface swept by the linear laser lines from the two lasers coincides with the central axis of the barrel, the intersection point is located on the central axis of the barrel, meaning the aiming point is located on the barrel's axis. This aiming point remains on the barrel's axis and does not change with the distance between the barrel muzzle and the target. Therefore, the aiming point formed by this laser aiming device is precise. This aiming device is particularly suitable for toy guns, firing toy bullets to hit small targets such as flies, mosquitoes, and moths. Its advantages are even more obvious when the muzzle is close to the target. Generally, these small targets are only visible to the human eye within 1 to 3 meters. Therefore, accurate aiming at close range is the key to hitting the target. It can be seen that the lateral distance deviation of the aiming point produced by this aiming device from the central axis of the barrel is relatively small, theoretically reaching zero deviation. This aiming device has a simple structure, low cost, is easy to use, and is highly practical. It can improve the accuracy of toy guns at close range, so it is conducive to its widespread use. Technical solutions

[0009] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0010] An adaptive cross-type laser aiming device includes two lasers mounted on the barrel or gun body, each capable of emitting a linear laser beam in a straight line. The linear laser beams emitted by the two lasers intersect at a point on the target surface. The surface swept by each laser beam is positioned near the central axis of the barrel. The surfaces swept by the two laser beams are not parallel. The intersection point of the two laser beams on the target surface is the aiming point. Because this aiming point is close to the central axis of the barrel, the error between the aiming point and the point of impact is small, which is advantageous for aiming at small targets, such as mosquitoes.

[0011] Preferably, the paraxial configuration involves positioning each laser such that the minimum angle between the surface swept by the linear laser beam emitted by each laser and the central axis of the barrel is no greater than 10°. This ensures that the intersection point of the linear laser beams emitted by two lasers on the target surface is relatively close to the perpendicular distance from the central axis of the barrel. Since the point of impact is close to the barrel muzzle, it can be assumed that the toy bullet flies in a straight line along the central axis of the barrel when it is fired from the muzzle. Therefore, the intersection point is the aiming point, which is also the point of impact of the toy bullet. The small perpendicular distance between the intersection point and the central axis of the barrel means that the aiming point has high accuracy.

[0012] Preferably, the paraxial configuration involves positioning each laser such that the surface swept by the linear laser beam emitted by each laser is parallel to the central axis of the barrel. This ensures that the intersection point and impact point of the linear laser beams emitted by two lasers on the target surface remain relatively close within a certain range, resulting in high aiming accuracy. Furthermore, the distance between the aiming point and the central axis of the barrel is fixed and does not change with the distance between the muzzle and the target surface, thus guaranteeing aiming accuracy. Further, positioning each laser such that the surface swept by the linear laser beam emitted by each laser coincides with the central axis of the barrel ensures that the aiming point coincides with the central axis of the barrel, guaranteeing zero aiming deviation and accurate aiming.

[0013] Preferably, the paraxial configuration involves positioning each laser such that the surface swept by the linear laser beam emitted by each laser is parallel to the central axis of the barrel, and the vertical distance between the surface swept by the linear laser beam emitted by each laser and the central axis of the barrel is no greater than 20mm. This is suitable for shotgun-type toys such as toy salt pellet guns. For sponge soft-shell guns, this vertical distance can be further reduced to improve shooting accuracy.

[0014] Preferably, the angle between the symmetrical central axis of the laser output from the laser and the central axis of the gun barrel is greater than or equal to 0 degrees and less than or equal to 30 degrees. This allows the lasers output from the two lasers to intersect on the target surface at a shorter distance from the muzzle, thus obtaining the aiming point. The symmetrical central axis of the laser output from the laser and the central axis of the gun barrel can be skew lines or two lines in the same plane.

[0015] Preferably, the angle between the surfaces swept by the linear lasers emitted by the two lasers is between 80° and 90°. This results in a near-cross-shaped pattern formed on the target surface by the linear lasers emitted by the two lasers, with the intersection point being the aiming point. This pattern aligns with common user habits and is easier for ordinary people to use.

[0016] Preferably, a third laser is also installed on the gun. The three lasers emit a linear laser beam that forms a planar triangle on the target surface, with the center of this triangle being the aiming point. Furthermore, since the surfaces swept by the linear laser beams emitted by the three lasers are all parallel to the central axis of the gun barrel, the size of the triangle formed on the target surface does not change with the distance between the target surface and the muzzle.

[0017] Preferably, the included angle between any two sides of the plane swept by the linear laser emitted by the three lasers is 60°±10°. Therefore, the triangle formed on the target surface is approximately an equilateral triangle.

[0018] Preferably, the divergence angle of the fan-shaped laser surface emitting a linear laser beam is no greater than 15°. More preferably, it is no greater than 10° or 5°. This allows for a more concentrated laser energy, reduces the laser's emission power, helps meet relevant standards for laser output power, and minimizes the potential harm of lasers to humans. Beneficial effects

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The adaptive cross-type laser aiming device of the present invention uses two lasers that can emit linear lasers in a line. The two laser segments of the linear laser emitted by each laser form an intersection point on the target surface, which is the aiming point. The lateral distance between the aiming point and the central axis of the barrel is small, or the distance between the two does not change with the distance between the aiming point and the muzzle, thereby giving the aiming device low deviation and high aiming accuracy.

[0021] 2. This invention employs two low-cost lasers capable of emitting linear laser beams in a single line, resulting in a high-precision laser aiming device. Theoretically, it can achieve zero-deviation aiming results, especially within a close range of 50 mm to 3 meters. Zero-deviation aiming can be achieved without considering changes in the distance between the muzzle and the target. In contrast, existing point-type laser aiming devices require calibration at different distances, both close and medium-to-long ranges. In practical use, it is impossible to achieve accurate aiming simultaneously at different distances, causing inconvenience. Therefore, it can be concluded that this aiming device has accurate aiming points, low cost, and is conducive to its widespread use in toy guns.

[0022] In summary, the adaptive cross-type laser aiming device of the present invention has the advantages of good performance, low cost, high precision, easy installation, easy calibration, and convenient use, and has good application prospects. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the spatial relationship between the arrangement of the laser and the toy gun barrel.

[0024] Figure 2 is a schematic diagram of the spatial relationship between the arrangement of the laser and the toy gun barrel.

[0025] Figure 3 is a schematic diagram of the adaptive cross-type laser aiming device of the present invention.

[0026] Figure 4 is a schematic diagram of the adaptive cross-type laser aiming device mounted on the muzzle of a toy gun.

[0027] Figure 5 is a schematic diagram of a laser that emits a line-shaped laser beam.

[0028] Figure 6 is a schematic diagram of the adaptive cross-type laser aiming device mounted via a Picatinny track.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1—Barrel; 2—Base; 3—Laser 1; 4—Laser 2;

[0031] 5—Central axis; 6—Plane 1; 7—Plane 2; 8—Intersecting line;

[0032] 9—Target surface; 10—First axis of symmetry; 11—Second axis of symmetry;

[0033] 20—Sleeve; 30—Body; 31—Picatinny rail;

[0034] 40—Laser A; 41—Plane A. The best embodiment of the present invention

[0035] Preferred Implementation: As shown in Figure 4, the adaptive cross-type laser aiming device, mounted on the barrel, includes laser 3 and laser 4, embedded in one end of a sleeve 20. The other end of the sleeve 20 is fitted onto the muzzle of the toy gun. Laser 3 and laser 4 emit linear laser beams in a straight line. The linear laser beam emitted by laser 3 sweeps across the ABCD plane (plane 6), which is near-axis with the central axis 5 of the barrel 1. The linear laser beam emitted by laser 4 sweeps across the EFGH plane (plane 7), which is also near-axis with the central axis 5 of the barrel 1. The angle between plane 6 and plane 7 is greater than 0° and less than or equal to 90°. Planes 6 and 7 are not parallel. The line segment of the linear laser emitted by laser 3 on the target surface 9 is BC, and the line segment of the linear laser emitted by laser 4 on the target surface 9 is FG. The intersection point M of line segment BC and line segment FG is the aiming point. Within a certain range close to the end of the barrel 1, the bullet fired from the barrel 1 flies in a straight line along the central axis 5 of the barrel 1. Different toy guns have different distances for their bullets to fly in a straight line along the central axis 5 of the barrel 1. Some are only a few meters, while others are ten or twenty meters. Only at these straight-line flight distances are the lateral and vertical distances between the aiming point and the central axis 5 of the barrel 1 close. Therefore, the error between the aiming point and the point of impact is small, thus enabling the laser aiming device of the present invention to achieve the aiming purpose. As long as the wall thickness of the sleeve 20 is uniform in the radial direction at the same height position of the sleeve 20, the central axis of the sleeve 20 will be located at the center of the circular symmetry of the sleeve 20. When the other end of the sleeve 20 is fitted onto the muzzle of the toy gun barrel 1, the central axis of the sleeve 20 will be collinear with the central axis of the gun barrel 1. Thus, during the production, debugging, and calibration of the laser aiming device of the present invention, the central axis of the sleeve 20 can be used as a reference for debugging and calibration, which can ensure that the aiming point of the aiming device is accurate when it is fitted onto the muzzle of the gun barrel 1, thereby reducing calibration problems in the use process and making it more convenient for actual use and operation.

[0036] Preferably, the paraxial configuration involves positioning each laser such that the minimum angle between the surface swept by the linear laser emitted by each laser and the central axis 5 of the barrel 1 is no greater than 10°. Specifically, the ABCD surface swept by the linear laser emitted by laser 3 (plane 6) has a minimum angle of no greater than 10° with the central axis 5 of the barrel 1, and the EFGH surface swept by the linear laser emitted by laser 4 (plane 7) has a minimum angle of no greater than 10° with the central axis 5 of the barrel 1. This ensures that the lateral distance between the intersection point M of the linear lasers emitted by the two lasers on the target surface 9 and the point of impact is small, resulting in high accuracy of the aiming point.

[0037] Preferably, the paraxial configuration involves positioning each laser such that the surface swept by the linear laser emitted by each laser is parallel to the central axis 5 of the barrel 1. Specifically, the ABCD surface swept by the linear laser emitted by laser 3 (plane 6) is parallel to the central axis 5 of the barrel 1, and the EFGH surface swept by the linear laser emitted by laser 4 (plane 7) is also parallel to the central axis 5 of the barrel 1. This ensures that the lateral distance between the intersection point M of the linear lasers emitted by the two lasers on the target surface 9 and the point of impact is small, resulting in high accuracy of the aiming point. Furthermore, the lateral distance between the aiming point and the central axis 5 of the barrel 1 is fixed and does not change with the distance between the muzzle of the barrel 1 and the target surface 9, thus guaranteeing the accuracy of the aiming point and maintaining accuracy even with adaptive distance changes in actual use.

[0038] Furthermore, the position of each laser is set so that the surface swept by the linear laser emitted by each laser coincides with the central axis 5 of the barrel 1. Thus, the central axis 5 of the barrel 1 is contained within plane 6 and plane 7, and the intersection line MN of the two planes is collinear with the central axis 5 of the barrel 1. Therefore, the aiming point is located on the central axis 5 of the barrel 1. It can be seen that, theoretically, this aiming point can achieve zero deviation from the central axis 5 of the barrel 1, thereby achieving zero-deviation high precision and maintaining laser aiming accuracy while adapting to changes in distance.

[0039] Preferably, the angle between the symmetrical central axis 10 of the laser output from laser 3 and the central axis 5 of the barrel 1 is greater than or equal to 0 degrees and less than or equal to 30 degrees; the angle between the symmetrical central axis 11 of the laser output from laser 4 and the central axis 5 of the barrel 1 is greater than or equal to 0 degrees and less than or equal to 30 degrees. The symmetrical central axis of the laser output from each laser and the central axis of the barrel 1 can be skew lines or two lines in the same plane. This is beneficial because the linear laser output from the two lasers can form an intersection point M on the target surface 9 when the distance between the target surface 9 and the muzzle is shorter, thus obtaining the aiming point.

[0040] Preferably, the angle between the surfaces swept by the linear lasers emitted by the two lasers, namely plane 6 and plane 7, is between 80° and 90°. Thus, the linear lasers emitted by the two lasers form a near-cross-shaped pattern on the target surface 9, with the intersection point M being the aiming point. This aiming pattern conforms to common user habits and is easier for ordinary people to accept and use.

[0041] Preferably, a third laser is also installed on the gun. The positions of the three lasers are set so that the linear lasers they emit form a planar triangle on the target surface 9, and the center of this triangle is the aiming point. Furthermore, the surfaces swept by the linear lasers emitted by the three lasers are all parallel to the central axis 5 of the gun barrel 1, so the size of the triangle formed on the target surface does not change with the distance between the target surface 9 and the muzzle.

[0042] Preferably, the angle between any two surfaces of the plane swept by the linear laser emitted by the three lasers is 60°±10°. Therefore, the triangle formed on the target surface 9 is approximately an equilateral triangle.

[0043] As shown in Figure 5, the laser includes laser A40 and a linear laser-emitting surface, i.e., plane A41. Plane A41 is fan-shaped, and the angle formed by sides LK and PS is the divergence angle of laser A40, which is no greater than 15°. Preferably, the divergence angle is no greater than 10° or 5°. This smaller divergence angle allows for more concentrated laser energy emitted by laser A40, reducing its emission power and helping to meet relevant standards for laser output power. Lowering the laser power reduces the risk of laser-related harm to humans. Embodiments of the present invention

[0044] As shown in Figure 6, the adaptive cross-type laser aiming device of the present invention is mounted on the gun body. Laser 3 and laser 4 are mounted on the base 2. The linear laser emitted by laser 3 sweeps across the ABCD plane, i.e., plane 6, which is near-axis with the central axis 5 of the barrel 1. The linear laser emitted by laser 4 sweeps across the EFGH plane, i.e., plane 7, which is also near-axis with the central axis 5 of the barrel 1. The angle between plane 6 and plane 7 is greater than 0° and less than or equal to 90°. Planes 6 and 7 are not parallel. The linear laser emitted by laser 3 is reflected on the target surface 9 by the laser line segment. The laser emitted by laser BC, as described above, forms a linear laser beam on the target surface 9. The line segment of this laser beam is FG. The intersection point M of line segments BC and FG is the aiming point. Within a certain range close to the end of the barrel 1, the bullet fired from the barrel 1 flies in a straight line along the central axis 5 of the barrel 1. Different toy guns have different distances for their bullets to fly in a straight line along the central axis 5 of the barrel 1; some are only a few meters, while others are ten or twenty meters. Only within these straight-line flight distances are the lateral and vertical distances between the aiming point and the central axis 5 of the barrel 1 close, so the error between the aiming point and the point of impact is small, thus enabling the laser aiming device of this invention to achieve the aiming purpose. Two lasers are mounted on the base 2, and the base 2 is also provided with a Picatinny groove, which cooperates with the Picatinny rail 31 installed on the toy gun body 30, making the self-adaptive cross-type laser aiming device of this invention very convenient to assemble and disassemble.

[0045] Preferably, the paraxial configuration involves positioning each laser such that the minimum angle between the surface swept by the linear laser emitted by each laser and the central axis 5 of the barrel 1 is no greater than 10°. Specifically, the ABCD surface swept by the linear laser emitted by laser 3 (plane 6) has a minimum angle of no greater than 10° with the central axis 5 of the barrel 1, and the EFGH surface swept by the linear laser emitted by laser 4 (plane 7) has a minimum angle of no greater than 10° with the central axis 5 of the barrel 1. This ensures that the lateral distance between the intersection point M of the linear lasers emitted by the two lasers on the target surface 9 and the point of impact is small, resulting in high accuracy of the aiming point.

[0046] Preferably, the paraxial configuration involves positioning each laser such that the surface swept by the linear laser emitted by each laser is parallel to the central axis 5 of the barrel 1. Specifically, the ABCD surface swept by the linear laser emitted by laser 3 (plane 6) is parallel to the central axis 5 of the barrel 1, and the EFGH surface swept by the linear laser emitted by laser 4 (plane 7) is also parallel to the central axis 5 of the barrel 1. This ensures that the lateral distance between the intersection point M of the linear lasers emitted by the two lasers on the target surface 9 and the point of impact is small, resulting in high accuracy of the aiming point. Furthermore, the lateral distance between the aiming point and the central axis 5 of the barrel 1 is fixed and does not change with the distance between the muzzle of the barrel 1 and the target surface 9, thus guaranteeing the accuracy of the aiming point and maintaining accuracy even with adaptive distance changes in actual use.

[0047] Furthermore, the position of each laser is set so that the surface swept by the linear laser emitted by each laser coincides with the central axis 5 of the barrel 1. Thus, the central axis 5 of the barrel 1 is contained within plane 6 and plane 7, and the intersection line MN of the two planes is collinear with the central axis 5 of the barrel 1. Therefore, the aiming point is located on the central axis 5 of the barrel 1. It can be seen that, theoretically, this aiming point can achieve zero deviation from the central axis 5 of the barrel 1, thereby achieving zero-deviation high precision and maintaining laser aiming accuracy while adapting to changes in distance.

[0048] Preferably, the angle between the symmetrical central axis 10 of the laser output from laser 3 and the central axis 5 of the barrel 1 is greater than or equal to 0 degrees and less than or equal to 30 degrees; the angle between the symmetrical central axis 11 of the laser output from laser 4 and the central axis 5 of the barrel 1 is greater than or equal to 0 degrees and less than or equal to 30 degrees. The symmetrical central axis of the laser output from each laser and the central axis of the barrel 1 can be skew lines or two lines in the same plane. This is beneficial because the linear laser output from the two lasers can form an intersection point M on the target surface 9 when the distance between the target surface 9 and the muzzle is shorter, thus obtaining the aiming point.

[0049] Preferably, the angle between the surfaces swept by the linear lasers emitted by the two lasers, namely plane 6 and plane 7, is between 80° and 90°. Thus, the linear lasers emitted by the two lasers form a near-cross-shaped pattern on the target surface 9, with the intersection point M being the aiming point. This aiming pattern conforms to common user habits and is easier for ordinary people to accept and use. Industrial applicability

[0050] This invention utilizes an existing semiconductor laser and a cylindrical or wave mirror placed at the emission port of the semiconductor laser, thereby transforming the point laser emitted by the laser into a straight line laser. Combined with other industrially processable parts, the device of this invention is formed. All components of this laser aiming device can be mass-produced industrially using conventional machining and electronic assembly processes. Raw materials are readily available, processes are standardized, and stable assembly can achieve close-range laser aiming function. It can be widely used in various toy guns and has full industrial applicability. Sequence List Free Content

[0051] Type the free content description paragraph for the sequence list here.

Claims

1. An adaptive cross laser sighting device comprising two lasers mounted on a barrel or body of a firearm, characterized in that, Both lasers can emit a line laser beam. The line laser beams emitted by the two lasers intersect on the target surface (9). The surface swept by the line laser beam emitted by each laser is near-axial with the central axis (5) of the barrel (1). The surfaces swept by the line laser beams emitted by the two lasers are two non-parallel surfaces. The intersection of the line laser beams emitted by the two lasers on the target surface (9) is the aiming point.

2. The adaptive cross-type laser aiming device according to claim 1, characterized in that, The paraxial position is set such that the plane swept by the linear laser emitted by each laser has a minimum angle of no more than 10° with the central axis (5) of the barrel (1).

3. The adaptive cross-type laser aiming device according to claim 1, characterized in that, The paraxial position is set such that the surface swept by the linear laser emitted by each laser is parallel to the central axis (5) of the barrel (1).

4. The adaptive cross-type laser aiming device according to claim 3, characterized in that, The vertical distance between the surface swept by the linear laser emitted by each of the lasers and the central axis (5) of the barrel (1) is no greater than 20mm.

5. An adaptive cross-type laser aiming device according to claim 4, characterized in that, The position of each laser is set such that the surface swept by the linear laser emitted by each laser coincides with the central axis (5) of the barrel (1).

6. The adaptive cross-type laser aiming device according to claim 1, characterized in that, The angle between the symmetrical central axis of the laser output and the central axis (5) of the gun barrel (1) is set to be greater than or equal to 0 degrees and less than or equal to 30 degrees.

7. The adaptive cross-type laser aiming device according to claim 1, characterized in that, The angle between the surfaces swept by the linear lasers emitted by the two lasers is between 80° and 90°.

8. The adaptive cross-type laser aiming device according to claim 1, characterized in that, The two lasers are located on the same base (2).

9. An adaptive cross-type laser aiming device according to claim 1, characterized in that, The two lasers are mounted on the same sleeve (20).

10. An adaptive cross-type laser aiming device according to claim 1, characterized in that, A third laser is also installed on the gun. The positions of the three lasers are set so that the line laser emitted by them forms a planar triangle on the target surface (9), and the center of the triangle is the aiming point.

11. An adaptive cross-type laser aiming device according to claim 9, characterized in that, The surfaces swept by the linear lasers emitted by the three lasers are all parallel to the central axis (5) of the gun barrel (1).

12. The adaptive cross-type laser aiming device according to any one of claims 9 or 10, characterized in that, The angle between any two surfaces swept by the linear lasers emitted by the three lasers is 60°±10°.

13. The adaptive cross-type laser aiming device according to any one of claims 1 to 3, characterized in that, The laser emits a linear laser beam in the shape of a fan, with a divergence angle of no more than 15°.

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