Portable laser target simulator

Abstract

A portable laser target simulator belongs to the technical field of optical imaging equipment. The present invention includes a shell, a three-piece optical lens, a pitch and steering adjustment device, a laser light source, a collimator and an aperture diaphragm. The three-piece optical lens is installed on the right side wall of the shell, and the laser light source is installed inside the shell through the pitch and steering adjustment device. The pitch and steering adjustment device on the front side of the laser light source is also installed with a collimator and an aperture diaphragm in sequence. The laser light beam emitted by the laser light source passes through the collimator, aperture diaphragm and three-piece optical lens in sequence. The purpose of research and development is to solve the problems of traditional laser target simulators, such as cumbersome operation, poor mobility, small application range, and difficulty in adapting to special test scenarios such as production and outdoor with limited installation conditions. Compared with traditional simulators, the present invention has a higher degree of integration and adopts an integrated design to combine the laser light source and the control box into one. It is small in size, light in weight, simple to operate, easy to move, and more practical.

Description

Technical Field

[0001] The invention relates to a portable laser target simulator and belongs to the technical field of optical imaging equipment. Background Art

[0002] The laser target simulator is an important component of the hardware-in-the-loop simulation system for laser-guided weapons. It provides a stable laser target for the electro-optical system under test and plays an important role in the R&D and testing process.

[0003] Traditional laser target simulators use industrial computers as their communication core and must be used in conjunction with a two-dimensional turntable to provide laser targets in different orientations for the optoelectronic system under test. The optical axis of the laser target simulator must pass through the intersection of the two axes of the two-dimensional turntable, and the entrance pupil center of the optoelectronic system under test must also be placed at the intersection of the two axes. This results in a large and expensive test system, which usually requires a specific site to be installed in a fixed laboratory. This is cumbersome to operate, has poor mobility, and a small range of application. It is difficult to adapt to special test scenarios such as production and outdoor testing with limited installation conditions.

[0004] Therefore, it is urgent to propose a new type of portable laser target simulator to solve the above technical problems. Summary of the Invention

[0005] The purpose of developing this invention is to address the problems of traditional laser target simulators, such as cumbersome operation, poor mobility, limited application range, and difficulty adapting to special testing scenarios such as production and outdoor installation with limited installation conditions. A brief overview of the invention is given below to provide a basic understanding of certain aspects of the invention. It should be understood that this overview is not an exhaustive overview of the invention. It is not intended to identify key or important parts of the invention, nor is it intended to limit the scope of the invention.

[0006] The technical solution of the present invention:

[0007] A portable laser target simulator includes a shell, a three-piece optical lens, a pitch and steering adjustment device, a laser light source, a collimator and an aperture diaphragm. The three-piece optical lens is installed on the right side wall of the shell, and the laser light source is installed inside the shell through the pitch and steering adjustment device. The pitch and steering adjustment device on the front side of the laser light source is also equipped with a collimator and an aperture diaphragm in sequence. The laser beam emitted by the laser light source passes through the collimator, aperture diaphragm and three-piece optical lens in sequence.

[0008] Preferably: the three-piece optical lens includes a first optical lens, a second optical lens, a third optical lens, a lens barrel, a spacer and a threaded pressure ring. The lens barrel is fixedly installed on the side wall of the shell. The first optical lens, the second optical lens and the third optical lens are installed in the lens barrel from left to right. The first optical lens, the second optical lens and the third optical lens are fixed between adjacent ones by spacers. The right end of the lens barrel is threaded with a threaded pressure ring, and the right side wall of the threaded pressure ring is in contact with the left side of the first optical lens.

[0009] Preferably: the pitch steering adjustment device includes a bracket, a pitch frame, a pitch adjustment motor, a pitch seat, a pitch axis, a pitch encoder, an azimuth frame, an azimuth adjustment motor, an azimuth seat, an azimuth axis, an azimuth encoder, a laser light source mounting seat and a laser light source pressure plate, the pitch adjustment motor and the pitch seat are symmetrically installed on the left and right sides of the bracket, one end of the pitch frame is fixedly connected to the output end of the pitch adjustment motor, the other end of the pitch frame is rotatably connected to the pitch seat through the pitch axis, the pitch encoder is fixedly installed on the right side of the pitch seat, the azimuth adjustment motor and the azimuth seat are symmetrically installed on the upper and lower sides of the pitch frame, one end of the azimuth frame is fixedly connected to the output end of the azimuth adjustment motor, the other end of the azimuth frame is rotatably connected to the azimuth seat through the azimuth axis, the azimuth encoder is fixedly installed on the bottom of the azimuth seat, the laser light source mounting seat is fixedly installed on the azimuth frame, the laser light source is fixedly installed on the laser light source mounting seat through the laser light source pressure plate, and the collimator and aperture diaphragm are fixedly installed on the laser light source mounting seat in front of the laser light source in sequence.

[0010] Preferably: it also includes a touch-controlled all-in-one machine, an industrial control board, a rechargeable lithium battery and an electrical connector. The touch-controlled all-in-one machine, the industrial control board, the rechargeable lithium battery and the electrical connector are all fixedly mounted on the shell. The industrial control board is connected to the external power supply through the electrical connector. The laser light source, the touch-controlled all-in-one machine, the rechargeable lithium battery, the pitch adjustment motor, the pitch encoder, the azimuth adjustment motor and the azimuth encoder are all connected to the industrial control board.

[0011] Preferably, the lens cover is further included, and the lens cover is clamped on the right side of the three-piece optical lens.

[0012] The present invention has the following beneficial effects:

[0013] 1. When the present invention is used, the laser target simulator is directly connected to the photoelectric system to be measured, which is easy to operate, can be used in various occasions, and does not occupy space;

[0014] 2. The pitch and steering adjustment device of the present invention can rotate independently in both pitch and azimuth, providing a field of view with a pitch and azimuth angle range of ±15°. The exit pupil position remains unchanged during movement, providing a stable laser target for the photoelectric system under test in special environments such as laboratories and outdoors.

[0015] 3. Compared with traditional simulators, this invention has a higher degree of integration. It adopts an integrated design to integrate the laser light source and the control box into one. It is small in size, light in weight, simple to operate, easy to move, and more practical.

[0016] 4. The present invention controls and adjusts the laser light source parameters through the industrial control board, so that the light intensity is adjustable and the output light pulse simulation is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a portable laser target simulator of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the portable laser target simulator of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the pitch and steering adjustment device of the present invention;

[0020] Figure 4 is an optical schematic diagram of a portable laser target simulator of the present invention;

[0021] In the figure: 0-laser beam, 1-housing, 2-three-piece optical lens, 3-pitch steering adjustment device, 4-laser light source, 5-collimator, 6-aperture diaphragm, 7-touch screen all-in-one machine, 8-industrial control board, 9-rechargeable lithium battery, 10-electric connector, 11-lens cover, 21-first optical lens, 22-second optical lens, 23-third optical lens, 24-lens barrel, 25-spacer, 26-threaded pressure ring, 31-bracket, 32-pitch frame, 33-pitch adjustment motor, 34-pitch seat, 35-pitch axis, 36-pitch encoder, 37-azimuth frame, 38-azimuth adjustment motor, 39-azimuth seat, 310-azimuth axis, 311-azimuth encoder, 312-laser light source mounting seat, 313-laser light source pressure plate. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0023] The connections mentioned in the present invention are divided into fixed connections and detachable connections. The fixed connection refers to a non-detachable connection, including but not limited to conventional fixed connection methods such as hem connection, rivet connection, adhesive connection, and welding connection. The detachable connection refers to but not limited to conventional detachable connection methods such as threaded connection, snap connection, pin connection, and hinge connection. When the specific connection method is not clearly specified, it is assumed that at least one connection method can always be found among the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example, a welded connection is selected for a fixed connection, and a hinge connection is selected for a detachable connection.

[0024] Specific implementation method 1: Combination Figure 1-Figure 4 To describe this embodiment, the portable laser target simulator of this embodiment includes a shell 1, a three-piece optical lens 2, a pitch and steering adjustment device 3, a laser light source 4, a collimator 5, an aperture diaphragm 6 and a lens cover 11. The three-piece optical lens 2 is installed on the right side wall of the shell 1, and the laser light source 4 is installed inside the shell 1 through the pitch and steering adjustment device 3. The pitch and steering adjustment device 3 on the front side of the laser light source 4 is also installed with a collimator 5 and an aperture diaphragm 6 in sequence. The aperture diaphragm 6 has a through hole for the laser light beam 0 to pass through. The laser light beam 0 emitted by the laser light source 4 passes through the collimator 5, the aperture diaphragm 6 and the three-piece optical lens 2 in sequence, and finally couples into the photoelectric system under test at the exit pupil position. The lens cover 11 is clamped on the right side of the three-piece optical lens 2.

[0025] The three-piece optical lens 2 includes a first optical lens 21, a second optical lens 22, a third optical lens 23, a lens barrel 24, a spacer 25 and a threaded pressure ring 26. The lens barrel 24 is fixedly mounted on the side wall of the housing 1. The first optical lens 21, the second optical lens 22 and the third optical lens 23 are sequentially mounted in the lens barrel 24 from left to right. The first optical lens 21, the second optical lens 22 and the third optical lens 23 are fixed between adjacent ones by the spacer 25. The right end of the lens barrel 24 is threadedly fitted with a threaded pressure ring 26. At the same time, the right side wall of the threaded pressure ring 26 is fitted with the left side of the first optical lens 21. The spacer 25 plays an isolating role and the threaded pressure ring 26 plays a locking role. The lens barrel 24 is a barrel-shaped structure that passes through from left to right, and the diameter of the opening on the right side is smaller than the diameter of the third optical lens 23. The purpose is to cooperate with the threaded pressure ring 26 to play a tightening and fixing role.

[0026] like Figure 4As shown in the optical schematic diagram, the laser light source 4 emits a laser beam 0, which is collimated into parallel light by the collimator 5 and then passes through the aperture diaphragm 6 to make the laser beam 0 emitted by the laser light source 4 become a fine laser beam with a diameter of Φ0.3 mm; under the action of the pitch and steering adjustment device 3, the laser light source 4 takes the aperture center of the aperture diaphragm 6 as the rotation center, and makes independent movements in the pitch and azimuth directions, and the rotation angle gradually rotates from 0° to ±15°, and finally couples into the photoelectric system under test at the exit pupil position through a lens group formed by coupling the first optical lens 21, the second optical lens 22 and the third optical lens 23, that is, a three-piece optical lens 2.

[0027] The pitch steering adjustment device 3 includes a bracket 31, a pitch frame 32, a pitch adjustment motor 33, a pitch seat 34, a pitch axis 35, a pitch encoder 36, an azimuth frame 37, an azimuth adjustment motor 38, an azimuth seat 39, an azimuth axis 310, an azimuth encoder 311, a laser light source mounting seat 312 and a laser light source pressure plate 313. The pitch adjustment motor 33 and the pitch seat 34 are symmetrically mounted on the left and right sides of the bracket 31. One end of the pitch frame 32 is fixedly connected to the output end of the pitch adjustment motor 33. The other end of the pitch frame 32 is rotatably connected to the pitch seat 34 through the pitch axis 35. The right side of the pitch seat 34 is fixedly mounted with a The pitch encoder 36, the azimuth adjustment motor 38 and the azimuth seat 39 are symmetrically installed on the upper and lower sides of the pitch frame 32, one end of the azimuth frame 37 is fixedly connected to the output end of the azimuth adjustment motor 38, and the other end of the azimuth frame 37 is rotatably connected to the azimuth seat 39 through the azimuth axis 310. An azimuth encoder 311 is fixedly installed on the bottom of the azimuth seat 39, and a laser light source mounting seat 312 is fixedly installed on the azimuth frame 37. The laser light source 4 is fixedly installed on the laser light source mounting seat 312 through the laser light source pressure plate 313. The collimating mirror 5 and the aperture diaphragm 6 are fixedly installed on the laser light source mounting seat 312 on the front side of the laser light source 4 in sequence.

[0028] When performing pitch motion adjustment, the pitch adjustment motor 33 works, driving the pitch frame 32 to rotate the pitch angle on the bracket 31. The pitch encoder 36 located on the right side of the pitch seat 34 is aligned with the right side of the pitch axis 35, which can monitor the motion data in real time and provide feedback.

[0029] When performing azimuth motion adjustment, the azimuth adjustment motor 38 works, driving the azimuth frame 37 to rotate the azimuth angle on the pitch frame 32. The azimuth encoder 311 located below the azimuth frame 37 is aligned with the bottom of the azimuth axis 310, which can monitor the motion data in real time and provide feedback.

[0030] The independent rotational movement of the laser light source 4 in pitch and azimuth makes the field of view angle of this embodiment reach ±15°, and the rotational movement process has no effect on the exit pupil position, that is, when the laser light source 4 rotates in pitch and azimuth, the exit pupil position always remains unchanged.

[0031] It also includes a touch-controlled all-in-one machine 7, an industrial control board 8, a rechargeable lithium battery 9 and an electrical connector 10. The touch-controlled all-in-one machine 7, the industrial control board 8, the rechargeable lithium battery 9 and the electrical connector 10 are all fixedly mounted on the housing 1. The industrial control board 8 is connected to the external power supply through the electrical connector 10. The laser light source 4, the touch-controlled all-in-one machine 7, the rechargeable lithium battery 9, the pitch adjustment motor 33, the pitch encoder 36, the azimuth adjustment motor 38 and the azimuth encoder 311 are all connected to the industrial control board 8. The purpose of setting the rechargeable lithium battery 9 is that the device can It uses alternating current and can also be used portable after charging. The light source parameters of the laser light source 4 are adjusted through the industrial control board 8, so that the light intensity of the laser beam 0 can be adjusted and the output light pulse simulation is better. The industrial control board 8 realizes human-computer interaction through the touch-screen all-in-one machine 7. The operation signal is input to the industrial control board 8 through the touch-screen all-in-one machine 7. The industrial control board 8 can control the adjustment of the laser light source 4, the touch-screen all-in-one machine 7, the rechargeable lithium battery 9, the pitch adjustment motor 33, the pitch encoder 36, the azimuth adjustment motor 38 and the azimuth encoder 311, etc. and obtain and process data.

[0032] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be permuted and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutations and combinations. Therefore, the present invention will no longer describe the technical solutions after permutations and combinations one by one, but it should be understood that the technical solutions after permutations and combinations have been disclosed by the present invention.

[0033] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. Portable laser target simulator, characterized by: The invention comprises a housing (1), a three-piece optical lens (2), a pitch steering adjustment device (3), a laser light source (4), a collimator (5) and an aperture diaphragm (6), wherein the right side wall of the housing (1) is provided with the three-piece optical lens (2), the laser light source (4) is provided inside the housing (1) via the pitch steering adjustment device (3), the pitch steering adjustment device (3) on the front side of the laser light source (4) is further provided with a collimator (5) and an aperture diaphragm (6) in sequence, and the laser light beam (0) emitted by the laser light source (4) passes through the collimator (5), the aperture diaphragm (6) and the three-piece optical lens (2) in sequence, and finally is coupled into the photoelectric system to be measured at the exit pupil position; The three-piece optical lens (2) comprises a first optical lens (21), a second optical lens (22), a third optical lens (23), a lens barrel (24), a spacer (25) and a threaded pressing ring (26); the lens barrel (24) is fixedly mounted on the side wall of the housing (1); the first optical lens (21), the second optical lens (22) and the third optical lens (23) are sequentially mounted in the lens barrel (24) from left to right; the first optical lens (21), the second optical lens (22) and the third optical lens (23) are fixed to each other by the spacer (25); the right end of the lens barrel (24) is threadedly fitted with a threaded pressing ring (26); and the right side wall of the threaded pressing ring (26) is in contact with the left side of the first optical lens (21); The pitch steering adjustment device (3) comprises a bracket (31), a pitch frame (32), a pitch adjustment motor (33), a pitch seat (34), a pitch axis (35), a pitch encoder (36), an azimuth frame (37), an azimuth adjustment motor (38), an azimuth seat (39), an azimuth axis (310), an azimuth encoder (311), a laser light source mounting seat (312) and a laser light source pressure plate (313). The pitch adjustment motor (33) and the pitch seat (34) are symmetrically mounted on the left and right sides of the bracket (31), one end of the pitch frame (32) is fixedly connected to the output end of the pitch adjustment motor (33), the other end of the pitch frame (32) is rotatably connected to the pitch seat (34) via the pitch axis (35), and the right side of the pitch seat (34) is fixed. A pitch encoder (36) is installed, and an azimuth adjustment motor (38) and an azimuth seat (39) are symmetrically installed on the upper and lower sides of the pitch frame (32), one end of the azimuth frame (37) is fixedly connected to the output end of the azimuth adjustment motor (38), and the other end of the azimuth frame (37) is rotatably connected to the azimuth seat (39) through an azimuth axis (310). An azimuth encoder (311) is fixedly installed on the bottom of the azimuth seat (39), and a laser light source mounting seat (312) is fixedly installed on the azimuth frame (37). The laser light source (4) is fixedly installed on the laser light source mounting seat (312) through a laser light source pressure plate (313), and the collimator (5) and the aperture stop (6) are fixedly installed on the laser light source mounting seat (312) on the front side of the laser light source (4) in sequence. The invention also includes a touch-control all-in-one machine (7), an industrial control board (8), a rechargeable lithium battery (9) and an electrical connector (10), wherein the touch-control all-in-one machine (7), the industrial control board (8), the rechargeable lithium battery (9) and the electrical connector (10) are all fixedly mounted on the housing (1), the industrial control board (8) is connected to an external power source via the electrical connector (10), and the laser light source (4), the touch-control all-in-one machine (7), the rechargeable lithium battery (9), the pitch adjustment motor (33), the pitch encoder (36), the azimuth adjustment motor (38) and the azimuth encoder (311) are all connected to the industrial control board (8); and further includes a lens cover (11), which is mounted on the right side of the three-piece optical lens (2).

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