Lens position adjustment mechanism, laser core and laser sight

Abstract

The present invention relates to a lens position adjustment mechanism, a laser core, and a laser sight, and includes a first lens mounting seat, a first lens, and a pull rod. The front end of the pull rod is fixedly connected to the rear end of the lens mounting seat, and a slider is connected to the rear end of the pull rod. The slider is installed parallel to the first lens mounting seat and extends forward along the axial direction of the first lens mounting seat. A first screw hole is opened on the top surface of the front end of the slider, and a shift block above the first screw hole is connected to the first screw hole via a first screw that penetrates the thickness of the shift block. The present invention has a simple structure, does not occupy space in the axial direction, is easy to operate, and allows for quick focus adjustment.

Description

[Technical Field]

[0001] The present invention relates to a lens position adjustment mechanism, a laser core, and a laser sight. [Background technology]

[0002] Patent number 201320495338.X discloses a three-in-one laser light source that uses an inner core (i.e., a light source fixing member) with three laser modules installed within a housing, allowing the three light sources to be fixed in the same inner housing and adjusted simultaneously during use, resulting in a small volume, easy portability, and ease of use. One particularly notable design is the focusing device for the first laser module. As can be seen from Figure 2 of the patent specification and the corresponding text description, this focusing device has a complex structure, is long, and occupies a large axial space. It achieves focusing by using a focusing handwheel to rotate the circumferential screw to change the position of the laser tube. The focusing process converts the circumferential rotation into a linear back-and-forth movement of the laser tube seat, resulting in significant motion loss and a particularly slow focusing speed. Summary of the Invention

[0003] SUMMARY OF THE INVENTION The objective of the present invention is to overcome the drawbacks of the conventional laser sight, such as the complicated focusing structure and slow focusing speed.

[0004] To achieve the above object, the present invention provides a lens position adjustment mechanism including a first lens mount seat, a first lens mounted on the front end of the first lens mount seat, and a pull rod whose front end is fixedly connected to the rear end of the lens mount seat and whose rear end is connected to a slider that is disposed parallel to the first lens mount seat and extends forward along the axial direction of the first lens mount seat.

[0005] A first screw hole is formed on the top surface of the front end of the slider, and the shift block arranged above the first screw hole is connected to the first screw hole by a first screw that penetrates the thickness of the shift block.

[0006] As a further improvement, the rear end of the slider extends toward one side of the pull rod to form a bent portion, and a second screw hole is provided at the end of the rear end of the pull rod.

[0007] The second screw passes through the stepped hole in the bent portion from the rear to the front of the bent portion and is connected to the second screw hole.

[0008] As a further improvement, the end face of the rear end of the pull rod is a first inner concave spherical surface.

[0009] The step surface of the step hole is located on the front end surface of the bending portion, and the rear end surface of the bending portion is a second inner concave spherical surface, and the rear end surface overlaps with the rear end surface of the step hole.

[0010] An elastic gasket and a first spherical spacer are disposed in the step surface of the step hole from inside to outside, with the spherical surface of the first spherical spacer engaging with the first inner concave spherical surface. A second spherical spacer is disposed in the second inner concave spherical surface and the spherical surface of the second spherical spacer engages with the spherical surface of the first spherical spacer. The spherical surfaces of the first and second spherical spacers are both outwardly convex spherical surfaces.

[0011] As a further improvement, the outer surface of the front end of the pull rod is spherical and is disposed in a spherical cavity at the rear end of the first lens mount seat. A retaining ring is fitted onto the spherical surface and is threadedly connected to a threaded surface at the rear of the spherical cavity. The front side of the inner surface of the retaining ring is an arcuate surface with a radius larger than the spherical diameter of the spherical surface, and the rear side of the inner surface of the retaining ring is an inner convex ring with a radius smaller than the spherical diameter of the spherical surface.

[0012] As a further improvement, the bottom surface of the slider is corrugated.

[0013] As a further improvement, a hollow lever is installed on the bottom surface of the shift block, and the lower end of the hollow lever can be inserted into the first screw hole, and the screw of the first screw is disposed on the hollow lever and extends downward to be connected to the first screw hole.

[0014] The laser core includes an inner core housing, a lens mounting cavity extending longitudinally from one side of the inner core housing, a photodiode disposed at the top end of a fixing seat, a second lens fixed to a second lens mounting seat, and the lens position adjustment mechanism.

[0015] The first lens mounting seat is mounted in the lens mounting cavity, and the first lens mounting seat is disposed behind the fixed seat.

[0016] The rear end of the first lens mounting seat is located at the rear end of the lens mounting cavity.

[0017] The slider is installed outside and parallel to the inner core housing.

[0018] A slide groove is formed in a side wall of the first lens mounting seat so as to penetrate in the radial direction, and the slide groove is disposed between the front end and the rear end of the first lens mounting seat.

[0019] A laser tube seat is installed at the rear end of the slide groove, and a laser tube LD is attached to the front end of the laser tube seat.

[0020] Two opposing third screws pass through stepped holes in the inner core housing from the outside, and then are fixedly connected to threaded holes in the laser tube seat, respectively.

[0021] The laser sight includes a sight case, and the laser core described above is installed within the sight case.

[0022] A strip-shaped through hole is opened on the top surface of the sight case, the shift block is arranged outside the strip-shaped through hole, and the first screw passes through the shift block and is connected to a first screw hole arranged inside the strip-shaped through hole.

[0023] The length of the shift block is longer than the length of the strip-shaped through hole, so that when the shift block moves the slider along the length of the strip-shaped through hole, the shift block is always positioned outside the strip-shaped through hole.

[0024] As a further improvement, a hollow lever is installed on the bottom surface of the shift block, the lower end of the hollow lever is inserted into the first screw hole, and the screw of the first screw is disposed in the hollow lever and extends downward to be connected to the first screw hole.

[0025] As a further improvement, the rear end of the slider extends toward one side of the pull rod to form a bent portion, and a second screw hole is provided at the end of the rear end of the pull rod, and a second screw passes through a through hole in the bent portion and is connected to the second screw hole.

[0026] The advantages of the present invention are that the structure is simple, does not occupy axial space, is easy to operate, and allows for fast focusing. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 2 is a schematic diagram of components of a lens position adjustment mechanism. [Figure 2] FIG. 2 is a first structural schematic diagram of a slider. [Figure 3] FIG. 2 is a structural schematic diagram of a pull rod. [Figure 4] FIG. 2 is a second structural schematic diagram of the slider. [Figure 5] 10 is a schematic view showing the structure of the rear end surface of the bending portion of the slider. [Figure 6] FIG. 2 is a schematic diagram of the structure of a laser core. [Figure 7] FIG. 7 is an exploded view of the laser core shown in FIG. [Figure 8] FIG. 2 is a schematic diagram of the front end face of the laser core. [Figure 9] FIG. 9 is a diagram A-A of FIG. 8. [Figure 10] FIG. 1 is a schematic diagram of a laser sight. [Figure 11] FIG. 1 is a schematic diagram illustrating the installation of strip-shaped through holes. [Figure 12] FIG. 2 is a schematic view of the front end face of the laser sight. [Figure 13] FIG. 13 is a view B-B of FIG. 12. [Figure 14] FIG. 2 is a cross-sectional view of the laser sight in the horizontal axis direction. [Figure 15] FIG. 2 is an exploded view of the laser sight. [Figure 16] FIG. 2 is a schematic diagram of the installation structure of the slide potentiometer. [Figure 17] FIG. 17 is an exploded view of the structure shown in FIG. [Figure 18] FIG. 10 is a cross-sectional view of the laser sight to show the installation of the slide potentiometer. [Figure 19] FIG. 1 is an exploded view of the laser sight to show the installation of the slide potentiometer. DETAILED DESCRIPTION OF THE INVENTION

[0028] In order to overcome the drawbacks of conventional laser sights, such as a complex focus adjustment structure and slow focus adjustment speed, this embodiment provides a lens position adjustment mechanism as shown in Fig. 1, which includes a first lens mount 1, a first lens 2 mounted on the front end of the first lens mount 1, and in particular a pull rod 3, the front end of which is fixedly connected to the rear end of the lens mount 1, and a slider 4 connected to the rear end of the pull rod 3. The slider 4 is installed parallel to the first lens mount 1 and extends forward along the axial direction of the first lens mount 1.

[0029] In order to realize the connection between the slider 4 and the pull rod 3, in this embodiment, a first screw hole 5 is particularly opened on the top surface of the front end of the slider 4 (the position on the left hand side of the viewer in the figure is the front), and the shift block 6 arranged above the first screw hole 5 is connected to the first screw hole 5 by a first screw 7 that penetrates through the thickness direction of the shift block 6, that is, the first screw 7 is threadedly connected to the first screw hole 5 after passing through the through hole in the shift block 6 from the top surface of the shift block 6 downward.

[0030] By moving the shift block 6, the slider 4 is moved through the connection between the first screw 7 and the first screw hole 5, and the slider 4 moves the pull rod 3 fixedly connected to it, and finally the pull rod 3 moves the first lens mount seat 1 fixedly connected to it, thereby changing the front-to-back distance of the first lens 2 and completing the change of focal length. Compared to the focus adjustment structure of the prior art, this focus adjustment method does not require occupying space in the axial direction of the sight because the slider 4 is arranged parallel to the pull rod 3. In addition, the shift block 6 is installed above the first lens mount seat 1 and is located on the top surface of the sight case when the sight is installed. When operating, the focal length can be adjusted by moving the shift block 6 back and forth along the axial direction, which is easy to operate and provides a more accurate feel when adjusting the distance.

[0031] To facilitate simple and reliable connection with the pull rod 3, this embodiment provides a slider 4 as shown in FIG. 2, with its rear end extending toward one side of the pull rod 3 to form a bent portion 8. A second screw hole 9 as shown in FIG. 3 is provided at the end of the rear end of the pull rod 3. A second screw 10 passes through a through hole 11 in the bent portion 8 and is connected to the second screw hole 9. In practice, the included angle between the bent portion 8 and the body of the slider 4 is preferably close to 90°, which can ensure that the slider 4 is installed parallel to the pull rod 3 and subsequently parallel to the first lens mounting seat 1. When the slider 4 is installed in the chamber of the sight case in the future, all components will have good coaxiality, which is beneficial to ensuring the precision of the sight.

[0032] For ease of positioning and assembly, the rear end surface of the pull rod 3 provided in this embodiment is a first inner concave spherical surface 12. The stepped surface of the stepped hole 11 of the slider 4 is located on the front end surface of the bending portion 8 shown in FIG. 4, and the rear end surface of the bending portion 8 is a second inner concave spherical surface 50 shown in FIG. 5, which overlaps with the rear end surface of the stepped hole 11. The elastic gasket 18 and the first spherical spacer 51 shown in FIG. 1 are located in the stepped surface of the stepped hole 11 from inside to outside, respectively, and the spherical surface of the first spherical spacer 51 engages with the first inner concave spherical surface 12 shown in FIG. 3. The second spherical spacer 52 shown in FIG. 1 is located in the second inner concave spherical surface 50 shown in FIG. 5, and the second spherical spacer 52 engages with the spherical surface of the first spherical spacer 51. The spherical surfaces of the first spherical spacer 51 and the second spherical spacer 52 are both outwardly convex spherical surfaces.

[0033] As can be seen from FIG. 1 , in this embodiment, the outer surface of the front end of pull rod 3 is spherical and is disposed within the spherical cavity at the rear end of first lens mount seat 1. Retaining ring 13 is fitted onto the spherical surface and is threadedly connected to the threaded surface at the rear of the spherical cavity. The front side of the inner surface of retaining ring 13 is an arc-shaped surface with a radius larger than the spherical diameter of the sphere, and the rear side of the inner surface of retaining ring 13 is an inner convex ring 14 with a radius smaller than the spherical diameter of the sphere. Retaining ring 13 (which is actually a threaded retaining ring with a screw thread on its outer wall) is threadedly connected to the spherical cavity at the rear end of first lens mount seat 1, and the installation of inner convex ring 14 achieves the connection between pull rod 3 and first lens mount seat 1. At the same time, the spherical contact surfaces between them enhance the flexibility and flexibility of the contact surfaces, preventing jamming or jamming during use.

[0034] As can be seen in FIG. 4, the bottom surface 33 of the slider 4 is corrugated. After the slider 4 is attached to the sight, a spring knock assembly consisting of a steel ball 34, a spring 35, and a screw 36 is attached to the sight case shown in FIG. 12. This presses the steel ball 34 against the bottom surface 33, and the clicking sound generated by friction as the slider 4 moves helps the operator know the approximate adjustment distance of the focal length, improving comfort and convenience. At the same time, this structure is securely positioned, and does not cause displacement of the focusing structure due to the inertia of impact vibrations when the firearm is fired, thereby avoiding changes in the angle of the output spot.

[0035] In order to stabilize the interaction between the shift block 6 and the slider 4, in this embodiment, a hollow lever 16 is installed on the bottom of the shift block 6, the lower end of the hollow lever 16 can be inserted into the first screw hole 5, and the screw of the first screw 7 is located within the hollow lever 16 and extends downward to connect to the first screw hole 5. In this way, the hollow lever 16 inserted into the first screw hole 5 increases the connection overlap area between the shift block 6 and the slider 4, and when attached to the sight case, the hollow lever 16 is pressed into the first screw hole 5 by a fastener to ensure the stability of the connection between the two.

[0036] Based on the above-mentioned lens position adjustment mechanism, this embodiment provides a laser core shown in Figures 6, 7, 8 and 9 (corresponding to the three-in-one light source fixing member in the prior art that integrates three types of laser modules, where the prior art refers to the light source fixing member in the patent invention with patent number 201320495338.X or the three-in-one laser module in the patent invention with patent number 201820873768.3). As can be seen from Figure 7 or Figure 9, the laser core includes an inner core housing 19, and a lens mounting cavity 20 (similar to the mounting cavity of the first laser module in the patent invention with patent number 201320495338.X) extending along the longitudinal direction is opened on one side of the inner core housing 19. At the front end of the lens mounting cavity 20, from the inside to the outside, a photodiode 22 is disposed at the top end of a fixing seat 21, and a second lens 24 is fixed to a second lens mounting seat 23 (see Figure 9 for the order). A special feature of this laser core is that its focus adjustment mechanism is the lens position adjustment mechanism shown in the previous embodiment, i.e., FIG. 1. That is, the lens position adjustment mechanism is installed in the lens mounting cavity 20 and is located behind the fixed seat 21 (the position to the viewer's right is the rear). Specifically, the first lens mounting seat 1 of the lens position adjustment mechanism is installed in the lens mounting cavity 20 and is located behind the fixed seat 21. At the same time, the rear end of the first lens mounting seat 1 is located at the rear end of the lens mounting cavity 20, which facilitates connection of the pull rod 3 and ensures a large axial space for the adjustment range of the focus adjustment distance. The slider 4 of the lens position adjustment mechanism is installed parallel to the outside of the inner core housing 19 (see FIG. 14).

[0037] In this embodiment, a laser tube LD 27 is further added. Specifically, as shown in FIG. 7 , a sliding groove 25 is formed in the side wall of the first lens mount seat 1, penetrating the side wall in the radial direction. The sliding groove 25 is located between the front and rear ends of the first lens mount seat 1. A laser tube seat 26 is installed at the rear end of the sliding groove 25, and the laser tube LD 27 is then attached to the front end of the laser tube seat 26, so that the light emitted from the laser tube LD is directed forward toward the first lens 2. To ensure the position of the laser tube LD is fixed, in this embodiment, two opposing third screws 28 are inserted through stepped holes in the inner core housing 19 from the outside and then fixedly connected to the threaded holes in the laser tube seat 26. That is, the top and bottom surfaces of the laser tube seat 26 are located in the upper and lower openings of the sliding groove 25, respectively. In actual application, the top and bottom surfaces of the laser tube seat 26 can extend outside the upper and lower openings of the sliding groove 25, respectively.

[0038] Here, in this embodiment, the first lens 2 is a beam expanding lens, and the second lens 24 is a convex lens. At the same time, the photodiode 22 is used to feed back the energy received from the laser tube LD27 to the main control board 41 (see FIG. 10) when the first lens 2 is adjusted forward or backward, so as to match the energy magnitude per irradiation unit area of ​​the beam passing through the second lens 24.

[0039] Based on the above-mentioned laser core, this embodiment provides a laser sight as shown in Figures 10, 11, 12, 13, 14, and 15, which includes a sight case 29, with the laser core 30 according to the above embodiment installed on one side of the sight case 29 and a battery compartment 38 installed on the other side. A strip-shaped through-hole 31 as shown in Figure 12 is opened on the top surface of the sight case 29, and the shift block 6 is disposed outside the strip-shaped through-hole 31, i.e., disposed outside the top surface of the sight case 29, as shown in Figure 15. The first screw 7 penetrates the shift block 6 and then connects to the first screw hole 5 located inside the strip-shaped through-hole 31 as shown in Figure 13, completing the connection between the shift block 6 and the slider 4 (the slider 4 is disposed inside the sight case 29 and between the laser core 30 and the battery compartment 38). The length of the shift block 6 is longer than the length of the strip-shaped through hole 31, so that when the shift block 6 moves the slider 4 along the length of the strip-shaped through hole 31, the shift block 6 is always positioned outside the strip-shaped through hole 31.

[0040] The lower end of the hollow lever 16 on the bottom surface of the shift block 6 is inserted into the first screw hole 5, and at the same time, the screw of the first screw 7 is positioned within the hollow lever 16 and extends downward to connect to the first screw hole 5, thereby improving the reliability of the connection between the shift block 6 and the slider 4.

[0041] The rear end of the slider 4 extends toward one side of the pull rod 3 to form a bent portion 8, which is connected to a second screw hole 9 installed at the end of the rear end of the pull rod 3 by a second screw 10. As can be seen in FIG. 13, the bent portion 8 bends and extends toward the laser core.

[0042] As can be seen from FIG. 10, the laser sight provided in this embodiment further includes a button switch 43, a toggle switch 44, an indicator lamp 45, a battery cover assembly 46, and a lens assembly 47, as well as a driving plate 40, a main control plate 41, a rear cover assembly 42, and a laser core pressing ring 48 shown in FIG. 14, all of which are conventional technologies and will not be described here.

[0043] 16, 17 and 18, in order to meet the needs of focus adjustment and ensure the stability of the illuminance of the output light, this embodiment installs a potentiometer-type displacement sensor 53 in the sight case 29, which is electrically connected to the main control board 41 shown in FIG. 19. The brush push rod 54 of the potentiometer-type displacement sensor 53 is inserted into the limit notch 55 located at the rear end of the bottom of the slider 4 shown in FIG. 16, so that it moves along with the forward and backward movements of the slider 4, and transmits the displacement signal of the slider 4 to the main control board 41. The main control board 41 adjusts the working current of the laser tube LD27 according to the displacement signal, so that the illuminance of the light emitted by the laser tube LD27 is stable, i.e., it does not change with the change of its position, and further realizes the stability of the illuminance of the laser light output by the laser module optical system. [Explanation of symbols]

[0044] 1, first lens mounting seat; 2, first lens; 3, pull rod; 4, slider; 5, first screw hole; 6, shift block; 7, first screw; 8, bending portion; 9, second screw hole; 10, second screw; 11, through hole; 12, first inner concave spherical surface; 13, retaining ring; 14, inner convex ring; 15, bump; 16, hollow lever; 17, lens pressing cover; 18, elastic gasket; 19, inner core housing; 20, lens mounting cavity; 21, fixing seat; 22, photodiode; 23, second lens mounting seat; 24, second lens; 25, slide groove; 26, laser tube seat; 27, laser tube LD; 28, third screw; 29, sight case; 30, laser core; 31, striker Lip-shaped through hole; 32, second lens spiral ring; 33, bottom surface; 34, steel ball; 35, spring; 36, screw; 37, shift block gasket; 38, battery compartment; 39, battery; 40, drive plate; 41, main control plate; 42, rear cover assembly; 43, button switch; 44, toggle switch; 45, indicator light; 46, battery cover assembly; 47, lens assembly; 48, laser core pressing ring; 49, elastic gasket; 50, second inner concave spherical surface; 51, first spherical spacer; 52, second spherical spacer; 53, potentiometer type displacement sensor; 54, brush push rod; 55, limit notch; 56, slide potentiometer mounting seat.

Claims

1. A lens position adjustment mechanism including a first lens mounting seat (1) and a first lens (2) mounted on a front end of the first lens mounting seat (1), The lens mount further includes a pull rod (3), the front end of which is fixedly connected to the rear end of the first lens mount seat (1), and a slider (4) is connected to the rear end of the pull rod (3), the slider (4) is installed parallel to the first lens mount seat (1) and extends forward along the axial direction of the first lens mount seat (1), A first screw hole (5) is formed in the top surface of the front end of the slider (4), and a shift block (6) disposed above the first screw hole (5) is connected to the first screw hole (5) by a first screw (7) that penetrates the thickness of the shift block (6). A lens position adjustment mechanism characterized by:

2. The rear end of the slider (4) extends toward one side of the pull rod (3) to form a bent portion (8), and a second screw hole (9) is provided at the end of the rear end of the pull rod (3). A second screw (10) passes through a stepped hole (11) in the bent portion (8) from the rear to the front of the bent portion (8) and is connected to the second screw hole (9).

2. The lens position adjusting mechanism according to claim 1.

3. The end face of the rear end of the pull rod (3) is a first inner concave spherical surface (12); The step surface of the step hole (11) is located on the front end surface of the bending portion (8), and the rear end surface of the bending portion (8) is a second inner concave spherical surface (50), and the rear end surface overlaps with the rear end surface of the step hole (11); An elastic gasket (18) and a first spherical spacer (51) are arranged in this order from inside to outside within the stepped surface of the stepped hole (11), the spherical surface of the first spherical spacer (51) is engaged with the first inner concave spherical surface (12), a second spherical spacer (52) is installed within the second inner concave spherical surface (50), and the second spherical spacer (52) is engaged with the spherical surface of the first spherical spacer (51), and the spherical surfaces of the first spherical spacer (51) and the second spherical spacer (52) are both outer convex spherical surfaces.

3. The lens position adjusting mechanism according to claim 2.

4. The outer surface of the front end of the pull rod (3) is spherical and is disposed in the spherical cavity at the rear end of the first lens mounting seat (1). A retaining ring (13) is fitted onto the spherical surface and is threadedly connected to the threaded surface at the rear of the spherical cavity. The front side of the inner surface of the retaining ring (13) is an arc-shaped surface whose radius is larger than the spherical diameter of the spherical surface, and the rear side of the inner surface of the retaining ring (13) is an inner convex ring (14) whose radius is smaller than the spherical diameter of the spherical surface.

2. The lens position adjusting mechanism according to claim 1.

5. The bottom surface of the slider (4) is a corrugated surface.

2. The lens position adjusting mechanism according to claim 1.

6. A hollow lever (16) is installed on the bottom surface of the shift block (6), and the lower end of the hollow lever (16) can be inserted into the first screw hole (5), and the screw of the first screw (7) is disposed in the hollow lever (16) and extends downward to be connected to the first screw hole (5).

2. The lens position adjusting mechanism according to claim 1.

7. A laser core including an inner core housing (19), a lens mounting cavity (20) extending along a longitudinal direction of the inner core housing (19) is opened on one side of the inner core housing (19), and a photodiode (22) disposed on a top end of a fixing seat (21) and a second lens (24) fixed to a second lens mounting seat (23) are mounted in this order from inside to outside at the front end of the lens mounting cavity (20), The lens position adjusting mechanism according to claim 1 further comprises: The first lens mounting seat (1) is mounted in the lens mounting cavity (20), and the first lens mounting seat (1) is disposed behind the fixed seat (21); The rear end of the first lens mounting seat (1) is located at the rear end of the lens mounting cavity (20), The slider (4) is installed outside and parallel to the inner core housing (19), A slide groove (25) is formed in the side wall of the first lens mounting seat (1) so as to penetrate radially therethrough, and the slide groove (25) is disposed between the front end and the rear end of the first lens mounting seat (1); A laser tube seat (26) is installed at the rear end of the slide groove (25), and a laser tube LD (27) is attached to the front end of the laser tube seat (26). Two opposing third screws (28) pass through stepped holes in the inner core housing (19) from the outside and then are fixedly connected to threaded holes in the laser tube seat (26), respectively. A laser core characterized by:

8. A laser sight including a sight case (29), The laser core (30) according to claim 7 is installed in the sight case (29), A strip-shaped through-hole (31) is opened on the top surface of the sight case (29), the shift block (6) is arranged outside the strip-shaped through-hole (31), and the first screw (7) is connected to a first screw hole (5) arranged inside the strip-shaped through-hole (31) after passing through the shift block (6); The length of the shift block (6) is longer than the length of the strip-shaped through hole (31), so that when the shift block (6) moves the slider (4) along the length direction of the strip-shaped through hole (31), the shift block (6) is always positioned outside the strip-shaped through hole (31). A laser sight characterized by:

9. A hollow lever (16) is installed on the bottom surface of the shift block (6), and the lower end of the hollow lever (16) is inserted into the first screw hole (5), and the screw of the first screw (7) is disposed in the hollow lever (16) and extends downward to be connected to the first screw hole (5).

9. The laser sight of claim 8.

10. The rear end of the slider (4) extends toward one side of the pull rod (3) to form a bent portion (8), and a second screw hole (9) is provided at the end of the rear end of the pull rod (3), and a second screw (10) passes through a through hole (11) in the bent portion (8) and is connected to the second screw hole (9).

10. The laser sight of claim 9.

11. The sight further includes a potentiometer-type displacement sensor (53) installed in the sight case (29), the potentiometer-type displacement sensor (53) being electrically connected to the main control board (41); The brush push rod (54) of the potentiometer displacement sensor (53) is inserted into a limit notch (55) installed at the rear end of the bottom surface of the slider (4), and moves along with the slider (4) when it moves back and forth, thereby transmitting a displacement signal of the slider (4) to the main control board (41). The main control board (41) adjusts the operating current of the laser tube LD (27) according to the displacement signal, stabilizing the illuminance of the light emitted from the laser tube LD (27), and further realizing the stabilization of the illuminance of the laser light output by the laser module optical system.

11. The laser sighting device according to claim 8, 9 or 10.

Images