Continuous laser zooming system with focusing damage and blinding interference functions

Abstract

The invention discloses a continuous laser zooming system with focusing damage and blinding interference functions. A laser light source, a first lens, a second lens, a third lens and a fourth lens are sequentially arranged along an optical axis from left to right. Wherein the first lens and the second lens are fixedly placed relative to the position of the laser light source, and the third lens can be adjusted relative to the position of the laser light source. A light beam emitted by the laser light source passes through the first lens and the second lens and then is adjusted by the third lens to be zoomed, and the fourth lens emits the laser beam zoomed by the third lens. The third lens is fixed in the adjusting lens barrel, zoom adjustment is achieved through the driving assembly, the angle sensor assembly and the limiting assembly, the close-distance laser focusing destroying function and the long-distance laser blinding interference function are achieved, and the device can be widely applied to laser weapon equipment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser weapon, and particularly relates to a continuous laser zoom system with focusing damage and blinding interference functions. BACKGROUND

[0002] Modern wars use unmanned aerial vehicle swarms, hypersonic missiles and the like as attack weapons, and traditional ammunition has the shortcomings of low efficiency, reaction lag and high cost when dealing with high-speed / small targets. Laser weapons have the advantages of low combat cost, fast transfer speed and good effect, and can meet the urgent needs of modern wars for 'light-speed interception and low-cost defense'.

[0003] Existing laser weapon systems commonly use laser zoom systems to realize laser focusing damage or blinding interference functions. If laser focusing damage and blinding interference functions are to be realized at the same time, two laser systems need to work at the same time, and the product has large volume, weight and power consumption, which seriously affects its deployment and performance in actual combat environment. Therefore, there is an urgent need for a compact laser zoom system that integrates the two functions. SUMMARY

[0004] In order to solve the above problems, the application provides a continuous laser zoom system with focusing damage and blinding interference functions, which realizes laser focusing damage and blinding interference functions at the same time, aims to realize the functions of near-range laser focusing destruction and long-range laser blinding interference, and can be widely applied to laser weapon equipment.

[0005] In order to achieve the above purpose, the technical scheme adopted by the application is: A continuous laser zoom system with focusing damage and blinding interference functions, which is provided with, in order from left to right along the optical axis: A laser light source fixed in a laser fixing seat; A front lens assembly composed of a front lens barrel, a first lens and a second lens accommodated in the front lens barrel, a spacer ring for spacing the first lens and the second lens, and a right end compression ring for compression fixing; An adjusting lens assembly composed of an adjusting lens barrel, a third lens accommodated in the adjusting lens barrel, and a compression ring for compression fixing; A rear lens assembly composed of a rear lens barrel, a fourth lens accommodated in the rear lens barrel, and a rear compression ring for compression fixing; The first lens and the second lens are fixedly placed relative to the position of the laser light source; the third lens is adjustable relative to the position of the laser light source; the light beam emitted by the laser light source is adjusted and zoomed through the third lens after passing through the first lens and the second lens, and the fourth lens emits the laser beam zoomed by the third lens; The total focal length of the laser zoom system lens is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, and the focal length of the fourth lens is f4, which satisfy the following relationships: 0.2≤|f1 / f|≤0.3; 0.08≤|f2 / f|≤0.2; 0.1≤|f3 / f|≤0.2; 0.2≤|f4 / f|≤0.4.

[0006] Further, a gear sleeve and a limiting ring are mounted outside the front lens barrel, the gear sleeve is provided with three independent and uniformly distributed curved grooves and a magnetic steel groove, the limiting ring is fixed with the front lens barrel through threads, and the limiting ring limits the axial displacement of the gear sleeve and allows the gear sleeve to rotate around the front lens barrel.

[0007] The driving assembly is fixed on the limiting ring and is composed of a driving gear, a driving motor and a motor seat. The driving gear is installed on the output shaft of the driving motor through interference fit, the driving motor is fixedly installed on the motor seat, and the motor seat is fixedly installed on the limiting ring.

[0008] The angle sensor assembly is composed of a circular magnetic steel and a sensor. The circular magnetic steel is fixed in the magnetic steel groove of the gear sleeve, and the sensor is fixed on the front lens barrel to detect the rotation angle of the gear sleeve.

[0009] The limiting assembly is composed of two limiting switches and a limiting top rod. The limiting switches are fixed on the front lens barrel, and the limiting top rod is fixed on the gear sleeve to limit the over-rotation of the driving assembly.

[0010] The adjusting lens barrel is installed in the front lens barrel, and a cam shaft is arranged on the outer periphery of the adjusting lens barrel. The curved groove cooperates with the cam shaft.

[0011] The first lens is a positive lens, the second lens is a negative lens, the third lens is a negative lens, and the fourth lens is a positive lens. The first lens, the second lens and the third lens are spherical lenses, and one surface of the fourth lens is an even aspheric surface.

[0012] Compared with the prior art, the present application has the following advantages: (1) The first lens, the second lens and the fourth lens are arranged in a fixed position relative to the laser light source, the first lens collimates the laser beam, the third lens is adjustable in position relative to the laser light source, the uniformity of the output laser beam is ensured by adjusting the third lens, the third lens has a wide adjustment range, the laser spot size can be less than 20mm in the range of 50m-500m, the laser focusing destruction function is realized, and the laser spot size can be kept at about 50cm in the range of 550m-1000m, the laser blinding interference function is realized, and the fourth lens is used for emitting the laser beam, and the uniformity of the emitted laser beam is good. (2) The size of the laser output beam can be changed with the type of the laser light source, different types of laser light sources can be selected to output laser beams of different sizes at different distances. (3) The third lens is installed and fixed in the adjusting lens barrel, and the zoom adjustment is realized by the driving assembly, the angle sensor assembly and the limiting assembly. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The optical system diagram of the continuous laser zoom system in the embodiment of the present application at 50m; Figure 2 The optical system diagram of the continuous laser zoom system in the embodiment of the present application at 500m; Figure 3 The optical system diagram of the continuous laser zoom system in the embodiment of the present application at 1000m; Figure 4 The overall structure sectional view of the continuous laser zoom system in the embodiment of the present application; Figure 5 The front view of the continuous laser zoom system in the embodiment of the present application; Figure 6 The rear view of the continuous laser zoom system in the embodiment of the present application; Figure 7 The gear sleeve structure diagram of the continuous laser zoom system in the embodiment of the present application.

[0014] In the figure: 1, laser light source, 2, first lens, 3, second lens, 4, third lens, 5, fourth lens, 6, laser fixing seat, 7, front lens assembly, 71, front lens barrel, 72, spacer ring, 73, right end compression ring, 8, rear lens assembly, 81, rear compression ring, 82, rear lens barrel, 9, adjusting lens assembly, 91, compression ring, 92, cam shaft, 93, adjusting lens barrel, 10, gear sleeve, 101, gear, 102, curved slot, 103, magnetic steel slot, 11, limiting ring, 12, driving assembly, 121, driving gear, 122, driving motor, 123, motor base, 13, angle sensor assembly, 131, round magnetic steel, 132, sensor, 14, limiting assembly, 141, limiting switch, 142, limiting jacking rod. DETAILED DESCRIPTION

[0015] In order to make the content and advantages of the present application more clear and apparent, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Reference Figures 1-7 A continuous laser zoom system with focusing damage and blinding interference function is provided with, in the direction from left to right along the optical axis, in order: A laser light source 1: the laser light source 1 is fixed in a laser fixing seat 6; A front lens assembly 7: composed of a front lens barrel 71, a first lens 2 and a second lens 3 accommodated therein, a spacer ring 72 for spacing the first lens 2 and the second lens 3, and a right end compression ring 73 for compression and fixed.

[0017] An adjusting lens assembly 9: composed of an adjusting lens barrel 93, a third lens 4 accommodated therein, and a compression ring 91 for compression and fixed.

[0018] A rear lens assembly 8: composed of a rear lens barrel 82, a fourth lens 5 accommodated therein, and a rear compression ring 81 for compression and fixed.

[0019] The first lens 2 and the second lens 3 are fixedly placed relative to the position of the laser light source 1. The third lens 4 is adjustable relative to the position of the laser light source 1. The light beam emitted by the laser light source is adjusted by the third lens after passing through the first lens and the second lens, and the fourth lens emits the laser beam after being zoomed by the third lens.

[0020] The total focal length of the laser zoom system lens is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, and the focal length of the fourth lens is f4, which satisfy the following relationships: 0.2≤|f1 / f|≤0.3; 0.08≤|f2 / f|≤0.2; 0.1≤|f3 / f|≤0.2; 0.2≤|f4 / f|≤0.4.

[0021] In this embodiment, the left surface of the first lens is S1, the right surface is S2, the left surface of the second lens is S3, the right surface is S4, the left surface of the third lens is S5, the right surface is S6, the left surface of the fourth lens is S7, the right surface is S8, and the image surface is IMA; the curvature radius of the four lenses is defined as "+" for left bending and "-" for right bending, and the specific parameters of each lens satisfy the following requirements:

[0022] The first lens is a positive lens, the second lens is a negative lens, the third lens is a negative lens, and the fourth lens is a positive lens. The first lens, the second lens, and the third lens are all spherical lenses, and one surface of the fourth lens is an even aspheric surface. In this embodiment, the surface S8 of the fourth lens is an even aspheric surface, which satisfies the following expression: .

[0023] wherein Z represents the sag of the even aspheric surface along the optical axis direction at a height of r, c represents the curvature of the surface vertex, k represents the conic coefficient, and a4, a6, and a8 represent high-order aspheric coefficients.

[0024] The aspheric coefficients of the surface S8 of the fourth lens are k=-3.094, a4=3.441E-07, a6=-7.0399E-09, and a8=2.6217E-12.

[0025] The focal length of the optical system satisfies the following conditions: |f1 / f|=0.2; |f2 / f|=0.14; |f3 / f|=0.14; and |f4 / f|=0.32.

[0026] Referring to Figure 4 and Figure 7 , the laser fixing seat 6 is installed at the end of the front lens barrel 71, the gear sleeve 10 and the limiting ring 11 are installed outside the front lens barrel, three independent and uniformly distributed curved grooves 102 and magnetic steel grooves 103 are arranged on the gear sleeve 10, the limiting ring 11 is fixed with the front lens barrel 71 through threads, the limiting ring limits the axial displacement of the gear sleeve 10 and allows the gear sleeve to rotate around the front lens barrel, ensuring that the gear sleeve can rotate around the front lens barrel without jamming. The front lens assembly 7 and the rear lens assembly 8 are matched through the hole shaft (H6 / g5) to ensure that the entire optical axis is consistent, and are connected through threads to adjust the optical spacing and fix.

[0027] Referring to Figure 6 , the drive assembly 12 is fixed on the limiting ring 11, the drive assembly is composed of a drive gear 121, a drive motor 122, and a motor base 123, the drive gear 121 is installed on the output shaft of the drive motor 122 through interference fit, the drive motor is fixedly installed on the motor base 123, the motor base is fixedly installed on the limiting ring 11, and the drive gear 121 is adapted with the gear 101 on the gear sleeve.

[0028] Referring to Figure 5 , the angle sensor assembly 13 is also included, the angle sensor assembly is composed of a circular magnetic steel 131 and a sensor 132, the circular magnetic steel is fixed in the magnetic steel groove 103 of the gear sleeve, and the centering accuracy is high. The sensor 132 is fixed on the front lens barrel 71 and is used for detecting the rotation angle of the gear sleeve 10, so that the rotation angle of the gear sleeve can be accurately detected. ​

[0029] Referring to Figure 6 Further comprising a limiting assembly 14, which is composed of two limiting switches 141 and a limiting top rod 142. The limiting switches are fixed on the front lens barrel 71, and the limiting top rod is fixed on the gear sleeve 10, which is located between the two limiting switches to limit the over-rotation of the driving assembly and prevent the motor from being stuck and burned out.

[0030] The small gap adjustment lens barrel 93 is installed in the front lens barrel 71, and a camshaft 92 is arranged on the outer periphery of the adjustment lens barrel, and a curved groove is matched with the camshaft. When the gear sleeve is rotated, the curved groove drives the camshaft to move axially, and then drives the adjustment lens barrel to slide forward and backward to realize focusing, which not only ensures the stability of the system optical axis but also can move forward and backward without jamming.

Claims

1. A continuous laser zoom system with focusing damage and blinding interference functions, characterized in that, Along the optical axis from left to right, the following are arranged sequentially: Laser source: The laser source is fixed in a laser mounting base; Front lens assembly: consists of a front lens barrel, a first lens and a second lens housed therein, a spacer for separating the first lens and the second lens, and a right end retaining ring for clamping and fixing. Adjustable lens assembly: consists of an adjustable lens barrel, a third lens housed therein, and a clamping ring for pressing and fixing; Rear lens assembly: consists of a rear lens barrel, a fourth lens housed therein, and a rear pressure ring for clamping and fixing; The first and second lenses are fixedly positioned relative to the laser source; the third lens is adjustable relative to the laser source; the laser beam emitted by the laser source is zoomed by the third lens after passing through the first and second lenses, and the fourth lens emits the zoomed laser beam from the third lens. The total focal length of the lenses in the laser zoom system is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, and the focal length of the fourth lens is f4, satisfying the following relationship: 0.2 ≤ |f1 / f| ≤ 0.3; 0.08 ≤ |f² / f| ≤ 0.2; 0.1 ≤ |f³ / f| ≤ 0.2; 0.2≤|f4 / f|≤0.

4.

2. The continuous laser zoom system with focusing damage and blinding interference functions according to claim 1, characterized in that, A gear sleeve and a limiting ring are installed on the outside of the front lens barrel. The gear sleeve has three independent and evenly distributed curved grooves and a magnetic groove. The limiting ring is fixed to the front lens barrel by threads. The limiting ring restricts the axial displacement of the gear sleeve and allows the gear sleeve to rotate around the front lens barrel.

3. The continuous laser zoom system with focusing damage and blinding interference functions according to claim 2, characterized in that, The limiting ring is fixedly provided with a driving component, which consists of a driving gear, a driving motor and a motor base. The driving gear is mounted on the output shaft of the driving motor by interference fit, the driving motor is fixedly mounted on the motor base, and the motor base is fixedly mounted on the limiting ring.

4. The continuous laser zoom system with focusing damage and blinding interference functions according to claim 2, characterized in that, It also includes an angle sensor assembly, which consists of a circular magnet and a sensor. The circular magnet is fixed in the magnet groove of the gear sleeve, and the sensor is fixed on the front mirror barrel for detecting the rotation angle of the gear sleeve.

5. The continuous laser zoom system with focusing damage and blinding interference functions according to claim 2, characterized in that, It also includes a limiting assembly, which consists of two limit switches and a limiting rod. The limit switches are fixed on the front mirror barrel, and the limiting rod is fixed on the gear sleeve, which is used to limit the over-position rotation of the drive assembly.

6. The continuous laser zoom system with focusing damage and blinding interference functions according to claim 2, characterized in that, The adjustable lens barrel with a small gap is installed inside the front lens barrel, and a camshaft is provided on the outer periphery of the adjustable lens barrel, with a curved groove cooperating with the camshaft.

7. The continuous laser zoom system with focusing damage and blinding interference functions according to claim 1, characterized in that, The first lens is a positive lens, the second lens is a negative lens, the third lens is a negative lens, and the fourth lens is a positive lens; the first lens, the second lens, and the third lens are all spherical lenses, and one surface of the fourth lens is an even-order aspherical surface.

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