Three-light fusion gun correction mirror optical system based on dynamic focusing of wedge-shaped mirror

Abstract

The invention discloses a three-light fusion gun correction mirror optical system based on dynamic focusing of a wedge-shaped mirror, and belongs to the technical field of military optical instruments. The device comprises a visible light objective lens, a first wedge-shaped lens, a second wedge-shaped lens, a laser collimation module, a low-illumination movement, a first right-angle prism, a second right-angle prism, a reticle and an eyepiece, and the visible light objective lens, the second right-angle prism, the first right-angle prism and the low-illumination movement are sequentially arranged in the direction of an optical axis. A light beam is imaged on an electronic reticle arranged in the low-illumination movement after being split by the first rectangular prism, the light beam is imaged on the plane of the reticle after being split by the second rectangular prism, the light beam is observed by the eyepiece through the reticle, and a wedge-shaped lens set is arranged at the front end of the laser alignment module and can rotate along the optical axis of laser. The gun calibration device is suitable for various complex terrains, meteorological conditions and illumination conditions as well as gun calibration requirements of various types of artillery, the problems that gun calibration is difficult and gun calibration sites are limited under severe weather and low illumination conditions are solved, and the adaptability of products is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of military optical instruments, and particularly relates to an optical system of a three-light fusion gun-sighting telescope based on dynamic focusing of a wedge prism. Background Art

[0002] The gun-sighting telescope can be installed in gun barrels of various calibers. By using the gun-sighting telescope to correct the basic sight axis and the gun axis of the artillery, the aiming axis and the firing line axis are corrected, ensuring that during the operation of the troops, the operator can quickly and accurately aim at the target through the basic sight for shooting. For the artillery corrected by the gun-sighting telescope, the sighting accuracy is good, the first-shot hit rate is high, and the combat effectiveness is effectively improved.

[0003] The existing technology has the following problems: First, single-spectrum dependence: Traditional gun-sighting telescopes only rely on visible light and fail at night or in haze weather; Second, insufficient calibration accuracy: For traditional visible light gun-sighting, the optical system is single and lacks laser assistance, making it difficult to achieve near-distance dynamic calibration; Third, poor environmental adaptability: It is difficult to select a site, and the versatility is poor. Real-time gun calibration cannot be carried out in extreme weather and bad terrain.

[0004] Therefore, there is an urgent need for a new technical solution in the existing technology to solve this problem. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an optical system of a three-light fusion gun-sighting telescope based on dynamic focusing of a wedge prism, which is used to solve the problems of poor environmental adaptability and low calibration efficiency of traditional gun-sighting telescopes in the existing technology.

[0006] The technical solution adopted by the present invention is to provide an optical system of a three-light fusion gun-sighting telescope based on dynamic focusing of a wedge prism, including a visible light objective lens, a first wedge prism, a second wedge prism, a laser collimation module, a low-light level camera module, a first right-angle prism, a second right-angle prism, a reticle, and an eyepiece. The visible light objective lens, the second right-angle prism, the first right-angle prism, and the low-light level camera module are arranged in sequence along the optical axis direction. The light beam is split by the first right-angle prism and imaged on the electronic reticle inside the low-light level camera module. The low-light level camera module is connected to a display, and the display is used for low-light gun calibration;

[0007] Wherein, the first right-angle prism and the second right-angle prism are two identical right-angle prisms with a beam-splitting film plated on the inclined surface and a 0.1-mm air gap maintained. The incident surface of the visible light objective lens is parallel to the incident surface of the second right-angle prism, the reticle is parallel to the exit surface of the second right-angle prism, the light beam is split by the second right-angle prism and rotated by 90 degrees to be imaged on the reticle plane, and is observed by the eyepiece through the reticle. The eyepiece is used for visible light gun calibration;

[0008] The laser collimation module is parallel to the optical axis direction. A wedge mirror group is provided at the front end of the laser collimation module. The wedge mirror group can rotate along the laser optical axis. The wedge mirror group consists of two identical wedge mirrors, namely wedge mirror one and wedge mirror two, which are closely attached along the inclined plane. By rotating wedge mirror one or wedge mirror two, the laser spot is focused on the gun calibration target cloth for laser gun calibration.

[0009] Another technical solution adopted by the present invention is to provide a three-light fusion gun calibration method based on dynamic focusing of wedge mirrors. Applying the above-mentioned three-light fusion gun calibration mirror optical system, it includes the following steps:

[0010] (1) Insert the gun calibration mirror coaxially into the gun barrel from the muzzle of the gun, and the optical system maintains high-precision coaxiality with the gun barrel.

[0011] (2) Select the gun calibration mode according to the light conditions.

[0012] (3) Set a near-distance gun calibration target cloth at 40 m or a far-distance gun calibration target cloth at 1200 m, and correct the basic aiming axis of the gun through the gun calibration mirror.

[0013] In step (2), the gun calibration mode is divided into a visible light mode, a low-light mode, and a laser mode.

[0014] In the visible light mode, when observing through the eyepiece, the magnified crosshairs of the gun calibration target cloth and the graduation lines of the reticle can be seen simultaneously. The graduation lines can represent the gun axis. By moving the gun barrel, the graduation lines are made to coincide with the crosshairs of the gun calibration target cloth.

[0015] In the low-light mode, when observing through the display, the magnified crosshairs of the gun calibration target cloth and the electronic graduation lines of the electronic reticle can be seen simultaneously. The electronic graduation lines can represent the gun axis. By moving the gun barrel, the electronic graduation lines are made to coincide with the crosshairs of the gun calibration target cloth.

[0016] In the laser mode, when the laser collimation module is turned on, the laser spot can represent the gun axis. By moving the gun barrel, the laser spot is focused on the crosshairs of the gun calibration target cloth at 40 m.

[0017] There is a crosshair on the far-distance gun calibration target cloth in step (3).

[0018] There are two crosshairs on the near-distance gun calibration target cloth in step (3).

[0019] An optical system of a three-light fusion gun calibration mirror based on dynamic focusing of wedge mirrors is applied to the all-weather, all-terrain, and all-time domain rapid and accurate gun calibration of various types of guns.

[0020] Through the above design scheme, the present invention can bring the following beneficial effects:

[0021] 1. Visible light (400 - 700 nm), low - level light (850 nm), and laser (635 nm ± 5 nm) are synchronously transmitted through the objective lens, beam - splitting prism, and wedge prism group to achieve co - axial fusion of three lights.

[0022] 2. The optical path is adjusted in real - time by rotating the double - wedge prism, so that the electronic reticle, laser spot, and optical reticle coincide at the target distance.

[0023] 3. The low - light - level camera core supports imaging at 0.001 Lux, and the attenuation rate of laser penetrating haze is < 5% / km, suitable for all - weather conditions.

[0024] 4. It is applicable to various complex terrains, meteorological conditions, day and night, long distances (1200 meters), short distances (40 meters), and the requirements of various types of artillery gun calibration. It solves the problems such as difficult gun calibration under bad weather and low - light - level conditions and limited gun - calibration sites, realizes fast and accurate gun calibration all - weather, all - terrain, and all - time - domain, and greatly improves the adaptability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is the optical path schematic diagram of the three - light fusion gun - calibration mirror optical system based on wedge - prism dynamic focusing of the present invention;

[0026] Figure 2 FIG. is the schematic diagram of the reticle, electronic reticle, and laser spot of the three - light fusion gun - calibration mirror optical system based on wedge - prism dynamic focusing of the present invention;

[0027] Figure 3 FIG. is the schematic diagram of the long - distance gun - calibration target layout of the three - light fusion gun - calibration mirror optical system based on wedge - prism dynamic focusing of the present invention;

[0028] Figure 4 FIG. is the schematic diagram of the short - distance gun - calibration target layout of the three - light fusion gun - calibration mirror optical system based on wedge - prism dynamic focusing of the present invention;

[0029] Figure 5 FIG. is the schematic diagram of the embodiment of the three - light fusion gun - calibration mirror optical system based on wedge - prism dynamic focusing of the present invention.

[0030] In the figure, 1 - visible - light objective lens, 2 - first wedge prism, 3 - second wedge prism, 4 - laser collimating lens, 5 - low - light - level camera core, 6 - first right - angle prism, 7 - second right - angle prism, 8 - reticle plate, 9 - eyepiece. DETAILED DESCRIPTION OF THE INVENTION

[0031] The following further describes the present invention in conjunction with the drawings and specific embodiments:

[0032] As Figure 1-2As shown in the figure, an optical system of a three-light fusion gun-sighting mirror based on dynamic focusing of a wedge mirror according to the present invention includes a visible light objective lens 1, a first wedge mirror 2, a second wedge mirror 3, a laser collimation module 4, a low-light level camera module 5, a first right-angle prism 6, a second right-angle prism 7, a reticle 8, and an eyepiece 9. The visible light objective lens 1, the second right-angle prism 7, the first right-angle prism 6, and the low-light level camera module 5 are arranged in sequence along the optical axis direction. The light beam is split by the first right-angle prism 6 and imaged on the electronic reticle built in the low-light level camera module 5. The low-light level camera module 5 is connected to a display, and the display is used for low-light gun-sighting.

[0033] Among them, the first right-angle prism 6 and the second right-angle prism 7 are two identical right-angle prisms with a beam-splitting film plated on the inclined surface and kept at an air gap of 0.1 mm. The incident surface of the visible light objective lens 1 is parallel to the incident surface of the second right-angle prism 7, and the reticle 8 is parallel to the exit surface of the second right-angle prism 7. The light beam is split by the second right-angle prism 7 and rotated by 90 degrees to be imaged on the plane A of the reticle 8, and is observed by the eyepiece 9 through the reticle 8. The eyepiece 9 is used for visible light gun-sighting.

[0034] The laser collimation module 4 is parallel to the optical axis direction. A wedge mirror group is provided at the front end of the laser collimation module 4. The wedge mirror group can rotate along the laser optical axis. The wedge mirror group is composed of two identical first wedge mirrors 2 and second wedge mirrors 3 that are closely attached along the inclined surface. By rotating the first wedge mirror 2 or the second wedge mirror 3, the laser spot is focused on the gun-sighting target cloth for laser gun-sighting.

[0035] A near-distance gun-sighting target cloth is set at 40 m or a far-distance gun-sighting target cloth is set at 1200 m. As Figure 3-4 shown, there is a crosshair on the far-distance gun-sighting target cloth, and there are two crosshairs on the near-distance gun-sighting target cloth.

[0036] Example 1:

[0037] During the day, with good weather, using the 1200 m far-distance gun-sighting target cloth, select the visible light mode, install the gun-sighting mirror into the gun barrel. At this time, the optical axis of the gun-sighting mirror is coaxial with the gun barrel; when observing through the eyepiece 9, the magnified crosshair of the gun-sighting target cloth and the crosshair of the reticle 8 can be seen clearly at the same time. By moving the gun barrel to make the crosshair coincide with the crosshair of the gun-sighting target cloth, and then adjusting the basic aiming sight line to coincide with the crosshair of the gun-sighting target cloth, the basic aiming axis correction is completed, and the gun is corrected at 1200 m.

[0038] Example 2:

[0039] During the day, with good weather, use a 1200m long-distance gun calibration target cloth, select the low-light mode, install the gun calibration scope into the gun barrel. At this time, the optical axis of the gun calibration scope is coaxial with the gun barrel; when observing through the display, the magnified crosshairs of the gun calibration target cloth and the crosshairs of the electronic reticle can be seen clearly at the same time. By moving the gun barrel, make the electronic reticle coincide with the crosshairs of the gun calibration target cloth, and then adjust the basic sight aiming line to coincide with the crosshairs of the gun calibration target cloth, that is, complete the basic sight axis calibration and complete the gun calibration at 1200m.

[0040] Example 3:

[0041] During the day, in bad weather such as haze, light rain, or light snow, use a 40m short-distance gun calibration target cloth, select the visible light mode, install the gun calibration scope into the gun barrel. At this time, the optical axis of the gun calibration scope is coaxial with the gun barrel; when observing through the eyepiece 9, the magnified crosshairs of the gun calibration target cloth and the crosshairs of the reticle 8 can be seen clearly at the same time. By moving the gun barrel, make the crosshairs coincide with one of the crosshairs on the gun calibration target cloth, and then adjust the basic sight aiming line to coincide with the other crosshair on the gun calibration target cloth, that is, complete the basic sight axis calibration, which is equivalent to completing the gun calibration at 1200m, as Figure 5 shown.

[0042] Example 4:

[0043] During the day, in bad weather such as haze, light rain, or light snow, use a 40m short-distance gun calibration target cloth, select the low-light mode, install the gun calibration scope into the gun barrel. At this time, the optical axis of the gun calibration scope is coaxial with the gun barrel; when observing through the display, the magnified crosshairs of the gun calibration target cloth and the crosshairs of the electronic reticle can be seen clearly at the same time. By moving the gun barrel, make the electronic reticle coincide with one of the crosshairs on the gun calibration target cloth, and then adjust the basic sight aiming line to coincide with the other crosshair on the gun calibration target cloth, that is, complete the basic sight axis calibration, which is equivalent to completing the gun calibration at 1200m.

[0044] Example 5:

[0045] During the day, in bad weather such as haze, light rain, or light snow, use a 40m short-distance gun calibration target cloth, select the laser mode, install the gun calibration scope into the gun barrel. At this time, the optical axis of the gun calibration scope is coaxial with the gun barrel; turn on the laser collimation module 4, and by moving the gun barrel, make the laser spot focus on one of the crosshairs on the gun calibration target cloth, and then adjust the basic sight aiming line to coincide with the other crosshair on the gun calibration target cloth, that is, complete the basic sight axis calibration, which is equivalent to completing the gun calibration at 1200m.

[0046] Example 6:

[0047] At night, use a 40m short-range gun-sighting target cloth, select the low-light mode, and install the gun-sighting mirror into the gun barrel. At this time, the optical axis of the gun-sighting mirror is coaxial with the gun barrel; when observing through the display, the magnified crosshairs of the gun-sighting target cloth and the crosshairs of the electronic reticle can be seen clearly at the same time. By moving the gun barrel, make the electronic reticle coincide with one of the crosshairs on the gun-sighting target cloth, and then adjust the basic sighting line to coincide with the other crosshair on the gun-sighting target cloth, that is, the basic sighting axis correction is completed, which is equivalent to completing the correction of the gun at 1200m.

[0048] Embodiment 7:

[0049] At night, use a 40m short-range gun-sighting target cloth, select the laser mode, and install the gun-sighting mirror into the gun barrel. At this time, the optical axis of the gun-sighting mirror is coaxial with the gun barrel; turn on the laser collimation module 4, and by moving the gun barrel, make the laser spot focus on one of the crosshairs on the gun-sighting target cloth, and then adjust the basic sighting line to coincide with the other crosshair on the gun-sighting target cloth, that is, the basic sighting axis correction is completed, which is equivalent to completing the correction of the gun at 1200m.

[0050] The present invention can be applied to the all-weather, all-terrain, and all-time domain rapid and accurate gun-sighting of various types of guns.

[0051] The implementation mode of the present invention is not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A three-light fusion gun-sighting mirror optical system based on dynamic focusing of a wedge mirror, characterized in that: It includes a visible light objective lens (1), a first wedge prism (2), a second wedge prism (3), a laser collimation module (4), a low-light level camera module (5), a first right-angle prism (6), a second right-angle prism (7), a reticle (8), and an eyepiece (9). The visible light objective lens (1), the second right-angle prism (7), the first right-angle prism (6), and the low-light level camera module (5) are arranged in sequence along the optical axis direction. The light beam is split by the first right-angle prism (6) and imaged on the electronic reticle inside the low-light level camera module (5). The low-light level camera module (5) is connected to a display, and the display is used for low-light level gun calibration. Among them, the first right-angle prism (6) and the second right-angle prism (7) are two identical right-angle prisms with a beam-splitting film plated on the inclined surface and kept at an air gap of 0.1 mm. The incident surface of the visible light objective lens (1) is parallel to the incident surface of the second right-angle prism (7), and the reticle (8) is parallel to the exit surface of the second right-angle prism (7). The light beam is split by the second right-angle prism (7) and rotated by 90 degrees to be imaged on the plane of the reticle (8), and is observed by the eyepiece (9) through the reticle (8). The eyepiece (9) is used for visible light gun calibration. The laser collimation module (4) is parallel to the optical axis direction. A wedge prism group is provided at the front end of the laser collimation module (4). The wedge prism group can rotate along the laser optical axis. The wedge prism group consists of two identical first wedge prisms (2) and second wedge prisms (3) closely attached along the inclined surface. By rotating the first wedge prism (2) or the second wedge prism (3), the laser light spot is focused on the gun calibration target cloth for laser gun calibration.

2. A three-light fusion gun calibration method based on dynamic focusing of a wedge mirror, which applies the three-light fusion gun calibration mirror optical system as described in claim 1, and is characterized in that: It includes the following steps: (1) Insert the gun calibration mirror coaxially into the gun barrel from the muzzle of the gun, and keep the optical system coaxially aligned with the gun barrel with high precision. (2) Select the gun calibration mode according to the light conditions. (3) Set a near-distance gun calibration target cloth at 40 m or a far-distance gun calibration target cloth at 1200 m, and correct the basic aiming axis of the gun through the gun calibration mirror.

3. The three-light fusion gun calibration method based on dynamic focusing of a wedge mirror according to claim 2, characterized in that: In step (2), the gun calibration modes are divided into visible light mode, low-light level mode, and laser mode.

4. A three-light fusion gun calibration method based on dynamic focusing of a wedge mirror according to claim 3, characterized in that: In the visible light mode, when observing through the eyepiece (9), the magnified crosshairs of the gun calibration target cloth and the graduation lines of the reticle (8) can be seen clearly at the same time. The graduation lines can represent the gun axis. By moving the gun barrel, the graduation lines are made to coincide with the crosshairs of the gun calibration target cloth.

5. A three-light fusion gun calibration method based on dynamic focusing of a wedge mirror according to claim 3, characterized in that: In the low-light level mode, when observing through the display, the magnified crosshairs of the gun calibration target cloth and the graduation lines of the electronic reticle can be seen clearly at the same time. The electronic graduation lines can represent the gun axis. By moving the gun barrel, the electronic graduation lines are made to coincide with the crosshairs of the gun calibration target cloth.

6. A three-light fusion gun calibration method based on dynamic focusing of a wedge mirror according to claim 3, characterized in that: In the laser mode, turn on the laser collimation module (4), and the laser light spot can represent the gun axis. By moving the gun barrel, the laser light spot is focused on the crosshairs of the gun calibration target cloth at 40 m.

7. A three-light fusion gun calibration method based on dynamic focusing of a wedge mirror according to claim 2, characterized in that: There is a crosshair on the far-distance gun calibration target cloth in step (3).

8. A three-light fusion gun calibration method based on dynamic focusing of a wedge mirror according to claim 2, characterized in that: There are two crosshairs on the near-distance gun calibration target cloth in step (3).

9. An optical system of a three-light fusion gun calibration mirror based on dynamic focusing of wedge prisms, which is applied to the all-weather, all-terrain, and all-time domain rapid and accurate gun calibration of various types of guns.

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