CN2643272Y - Laser collimation correction device - Google Patents

Abstract

The utility model discloses a laser collimation correction device, which utilizes a plurality of screws located on a threaded opening of a main body and a threaded structure of a front cover to adjust the positions of a laser diode and a convex lens, so that a light source (point light source) of the laser diode is located at the focus of the convex lens, and a light beam generated by the light source of the laser diode passes through the convex lens to form a collimated laser. The collimated laser provides an indicating light source required for trajectory correction of a gun.

Description

Laser collimation correction device

technical field

The utility model relates to a laser collimation correction device, in particular to a laser collimation correction device for correcting gun ballistics.

Background technique

Laser (Light Amplification by Stimulated Emission of Radiation; LASER) is a directional light with a small diffusion angle and can be transmitted over long distances. It is used in standard line, standard plane, positioning, ranging, and diameter measurement. Today's laser diodes can generate laser light after being driven by a battery. The laser is a divergent point light source. To form a collimated parallel laser light from a point light source, the light-gathering function of a convex lens is needed. The convex lens has a fixed focal length. When focusing, the point light emitted from the light source will be converted into a parallel light beam, so when the point light source is precisely placed on the focus of the convex lens, the divergent light of this point light source will be converted into parallel light.

The existing gun ballistic correction technology uses lasers to guide the impact point, replacing the previous method of actually firing bullets. The laser emitting device that simulates the bullet is loaded into the shell and then put into the gun chamber, and the button of the laser emitting device is hit by the firing pin. After the switch, the laser emitting device emits a collimated laser beam onto the target, and then corrects the trajectory of the gun with this light spot. The key to this technology is whether the laser generated by the laser emitting device has good collimation. The key to good collimation is whether the light source of the laser diode can be placed on the focal point of the convex lens.

The existing technology for adjusting the laser collimated beam is to put a longitudinally stretchable elastic element (spring) between the laser diode and the convex lens, and then use a fine-tuning stud or an adjustment screw to press the convex lens tightly so that the convex lens is aligned with the laser beam. The light source of the diode is close to adjust the longitudinal distance between the convex lens and the light source of the laser diode, so that the light source of the laser diode is close to the focal point of the convex lens. However, these two existing technologies obviously do not have the ability to adjust the longitudinal projection surface of the light source of the laser diode and the convex lens. When the light emitting source of the laser diode is not located on the mirror axis of the convex lens, the light emitting source of the laser diode cannot be adjusted to the focus of the convex lens through the existing technology, so the collimation of the laser will be affected.

Utility model content

The main purpose of this utility model is to provide a device that can adjust the relative position of the light source of the laser diode and the convex lens, and generate a collimated laser beam for correcting the ballistic of the gun.

The laser diode is joined in the fixed seat, the fixed seat is located in the main body, and is pressed and positioned by the screw on the threaded opening of the main body, and the position of each screw can be adjusted to adjust the position of the fixed seat on the cross-section of the main body, and the convex lens Located in front of the tube body, it is fixed by a hollow front cover with threads on the outer edge and a spring supported on the flange on the main tube body. The thread design of the front cover can adjust the distance between the convex lens and the light source of the laser diode. Through the screw With the adjustment of the front cover, the light source of the laser diode is adjusted to the focus of the convex lens, and the beam generated by the laser diode passes through the convex lens to form a collimated laser.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the appearance of the utility model.

Fig. 2 is a structural exploded view of the utility model.

Fig. 3-1 is a schematic cross-sectional view of an embodiment of the utility model.

Fig. 3-2 is a schematic cross-sectional view of A-A of Fig. 3-1 of the present utility model.

Detailed ways

Relevant detailed description and technical contents of the utility model are as follows in conjunction with the accompanying drawings:

Please refer to Fig. 1, which is a schematic diagram of emitting laser beam 12 after the utility model is loaded into the cartridge case 10. The cartridge case 10 can change its size and form according to different firearms, and the striker (not shown) of the firearm hits the button switch After 901, a collimated laser beam 12 is emitted and shot onto the target 15 to provide a reference for gun calibration.

Please refer to Fig. 2 and Fig. 3-1 together, the utility model has a main pipe body 50, the front end of the main pipe body 50 is provided with a front cover 20, and the outer edge of the front cover 20 has a thread structure 203, matching the thread structure at the front end of the main pipe body 50 503, the front cover 20 can be screw-locked on the front end of the main body 50, the center of the front cover 20 is provided with an opening 201, and the front end of the front cover 20 is provided with a long groove 202 across the opening 201, this long groove 202 can facilitate The user turns the front cover 20, the convex lens 30 is located in the main body 50 and is arranged behind the front cover 20, the main body 50 also has an annular flange 505 inside, the first spring 40 is arranged between the convex lens 30 and the flange 505, The first spring 40 pushes the convex lens 30 to the front cover 20 through the support of the flange 505 , so that the convex lens 30 is close to the front cover 20 .

The fixing seat 60 is located at the rear of the flange 505 and is close to the flange 505. The laser diode 65 is fixed on the fixing seat 60. The fixing seat 60 is a hollow tube body. The light source 651 of the laser diode 65 passes through the The tube body is located at the center of the front end of the tube body of the fixing seat 60, and the laser diode 65 rear end is connected with a laser diode circuit substrate 652. Please refer to Fig. 3-2 together. There are a plurality of threaded openings 501 surrounding the main body 50, and a plurality of screw rods 502 are screwed on the threaded openings 501 of the main body 50, and the screw rods 502 are tightly pressed against the fixing seat 60. By adjusting the position of each screw rod 502, the adjustable fixing seat 60 is fixed At the position of the internal cross-section of the main body 50, the number of configurations of the screw rods 502 does not need to be particularly limited, as long as the screw rods 502 can adjust the position of the fixing seat 60 on the internal cross-section of the main body 50, but it is best to configure four. Preferably, they are respectively distributed on the upper, lower, left, and right sides of the outer circumference of the main pipe body 50. In addition, at the appropriate position of the outer circumference of the fixed seat 60, a concave circular ring 602 can also be added. The screw rod 502 is screwed to the threaded opening 501 of the main body 50 and pressed against the circular ring 602 of the fixed seat 60. Avoid the front and rear sliding of the fixing seat 60, improve the stability of the structure, and several openings 508 can be added on the main body 50 to be located beside the threaded opening 501. When the screw rod 502 adjusts the fixing seat 60 to the required position, it can be injected and fixed by the opening 508. Glue, so that the fixing seat 60 is permanently fixed in the same position.

The inside of the end of the main body 50 has a threaded structure 509, and a button body 90 has a corresponding threaded structure 909 and is installed on the end of the main body 50. The button body 90 also has a long groove 902, so that the button body 90 is easy to rotate and disassembled on the main pipe. On the body 50, a button switch 901 is also provided on the button body 90 to control whether the button body 90 is conducting. One end of the battery 80 is connected to the button body 90, and the other end of the battery 80 is connected to the laser diode circuit substrate 652 through the second spring 70. Through the action selection of the button switch 901, the battery 80 is connected to the laser diode 65, and the laser diode 65 is driven by the battery 80 to emit a laser point light source from the light source 651. After the light is collected by the convex lens 30, a parallel laser beam 12 is formed. It is emitted from the opening 201 of the front cover 20 . It should be noted here that the inner diameter of the first spring 40 is larger than that of the flange 505 to prevent the first spring 40 from hindering the laser beam 12 from traveling.

In the utility model, through the adjustment of the front cover 20 and the screw rod 502, the light source 651 of the laser diode 65 can be accurately adjusted to the focus of the convex lens 30, and driven by the battery 80, the light source 651 of the laser diode 65 can generate a point light source. After the condensing of the convex lens 30, the point light source forms a collimated parallel laser. The utility model is loaded into the cartridge case 10 and put into the gun chamber. The utility model emits a collimated laser beam 12 and shoots it onto the bullet target 15 , the light spot produced by the laser beam 12 can be used to correct the trajectory of the firearm.

Although the utility model has been described with reference to the accompanying drawings and preferred embodiments, the above embodiments are only illustrative, and for those skilled in the art, the utility model can have various modifications and changes. Various modifications, changes and equivalents of the present invention are covered by the contents of the appended claims.

Claims (7)

1. A laser alignment correction device, comprising a laser diode (65), a convex lens (30), a front cover (20), and a main body (50), the laser diode (65) has a light source (651) is located at the center of the front end of a fixed seat (60) and is engaged with the fixed seat (60) and driven by a battery (80); the center of the front cover (20) is provided with an opening (201), so The front cover (20) and the main main body (50) are screwed together through threaded structures (203, 503), and a first spring (40) passes through a flange (505) located inside the main main body (50). ) support makes the convex lens (30) located inside the main body (50) close to the front cover (20), and the fixing seat (60) is located behind the flange (505) , is characterized in that: the outer circumference of the main body (50) corresponds to the fixed seat (60), there are a plurality of threaded openings (501) surrounding the main body (50), and a plurality of screw rods (502) screwed to the threaded opening (501) of the main body (50) and tightly pressed to fix the fixing seat (60). 2. The laser alignment correction device according to claim 1, characterized in that: said main body (50) is also connected with a button body (90), and is screwed to said The end of the main body (50), one end of the battery (80) is connected to the button body (90), and the other end of the battery (80) is connected to the laser diode (65) through a second spring (70) , the button body (90) also has a button switch (901) for switching the laser diode (65). 3. The laser alignment correction device according to claim 1, characterized in that: the front end of the front cover (20) is provided with a long groove (202) across the opening (201). 4. The laser alignment correction device according to claim 1, characterized in that: there are four threaded openings (501) of the main body (50), which are evenly distributed on the upper and lower sides of the outer circumference of the main body (50) about. 5. The laser alignment correction device according to claim 1, characterized in that: the main body (50) has several openings (508) located beside the threaded opening (501). 6. The laser alignment correction device according to claim 1, characterized in that: the outer circumference of the fixed seat (60) has a concave circular ring (602), and the screw (502) screw Locked in the threaded opening (501) of the main body (50) and pressed against the circular ring (602) of the fixing seat (60). 7. The laser alignment correction device according to claim 1, characterized in that: the inner diameter of the first spring (40) is larger than the inner diameter of the flange (505).

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