A dual-band scene simulator and its beam combining component

Abstract

The present invention provides a dual-band simulator beam combining component, comprising a body, the body is provided with a flange, a beam combining box is movably connected to the flange, a beam combining mirror is provided on the beam combining box, a mounting and positioning mechanism is provided on the mirror frame of the beam combining mirror, mirror frames are provided around the beam combining mirror, a translation mechanism is provided on the planes opposite to the flange and on the side of the beam combining box, the translation mechanism comprises a main translation stage and a secondary translation stage, a second simulator connecting plate is connected to the secondary translation stage, the second simulator connecting plate is connected to the first simulator connecting plate, the first simulator connecting plate is connected to the third simulator connecting plate, and the third simulator connecting plate is connected to the main translation stage. The present invention installs an independent simulator on the translation stage of the beam combining component, and adjusts the position of the translation stage so that the scene light projected by the simulator enters the corresponding device under test after being refracted or reflected by the beam combining mirror. The operation is simple, the method is practical, and the R&D cost and the R&D cycle are effectively reduced.

Description

Technical Field

[0001] The invention relates to the field of optical technology, and in particular to a dual-band scene simulator and a beam combining component thereof. Background Art

[0002] With the rapid development of optoelectronic imaging detection devices, infrared surveillance and other optoelectronic tracking and aiming equipment, multi-spectral fusion equipment has become the mainstream development direction due to its performance advantages. In the process of research and development, experiments, and acceptance, semi-physical simulation simulators have become key equipment for verifying equipment performance. The five-axis motion platform equipped with a simulator is a large-scale experimental equipment. There are few of them and many devices to be tested, which leads to tight experimental scheduling. Usually, for different equipment, due to the different position and spacing of the two optical axes, corresponding simulators need to be developed, which are not interchangeable with each other, resulting in duplicate construction and increasing the development cycle and cost. Therefore, developing simulators that can adapt to a variety of optical axis positions and spacings has become an important means for R&D units to reduce costs and R&D cycles.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0004] The object of the present invention is to provide a dual-band scene simulator and a beam combining component to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A dual-band scene simulator beam combining component comprises a main body, the main body is provided with a flange, a beam combining box is movably connected to the flange, a beam combining box is provided with a beam combining mirror, a mirror frame of the beam combining mirror is provided with a mounting and positioning mechanism, mirror frames are provided around the beam combining mirror, a translation mechanism is provided on the planes opposite to the flange and on the side surfaces of the beam combining box, the translation mechanism comprises a main translation stage and a secondary translation stage, a second simulator connecting plate is connected to the secondary translation stage, the second simulator connecting plate is connected to the first simulator connecting plate, the first simulator connecting plate is connected to the third simulator connecting plate, and the third simulator connecting plate is connected to the main translation stage.

[0007] Furthermore, the auxiliary translation platforms are divided into two parallel groups and together constitute the translation track of the second simulator connecting plate.

[0008] Furthermore, the translation track is made of stainless steel.

[0009] Furthermore, the auxiliary translation stage and the second simulator connecting plate, the second simulator connecting plate and the first simulator connecting plate, the first simulator connecting plate and the third simulator connecting plate, and the third simulator connecting plate and the main translation stage are all movably connected via screws.

[0010] Furthermore, the main translation stage is provided with a precision lead screw and an optical rod as guide rails.

[0011] Furthermore, the precision lead screw is arranged in the middle position of the two optical rods.

[0012] Furthermore, a digital ruler is provided on the main translation stage.

[0013] Furthermore, a cover plate is provided on the first simulator connecting plate to cover the light-through hole on the beam combining box.

[0014] Furthermore, the back side of the cover plate is covered with a layer of velvet light-absorbing material.

[0015] Furthermore, the dual-band scene segment simulator includes the above-mentioned dual-band simulator beam combining component.

[0016] Working principle of the present invention: The beam combining component of the scene simulator provided by the present invention can be accurately positioned by a translation stage, and the position of the independent simulator can be changed to adapt to different models of devices under test. When a visible light and infrared co-axial simulator is needed, the visible light scene simulator and the infrared scene simulator are respectively connected to the first simulator connecting plates of the two channels, and the track position is adjusted so that the two outgoing optical axes coincide with the optical axis of the device under test after being refracted and reflected by the beam combining mirror, thereby forming a composite simulator for the device under test with a co-axial light; when a visible light and infrared optical axis parallel simulator is needed, the visible light scene simulator and the infrared scene simulator are respectively connected to the first simulator connecting plates of the two channels, and the track position is adjusted so that the two outgoing optical axes coincide with the two optical axes of the device under test after being refracted and reflected by the beam combining mirror, thereby forming a composite simulator for the device under test with parallel optical axes.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention installs an independent simulator on the translation stage of the beam combining component, and adjusts the position of the translation stage so that the scene light projected by the simulator enters the corresponding device under test after being refracted or reflected by the beam combining mirror. The structure is novel, the method is simple, and the operability is strong; 2. The present invention effectively reduces the R&D cost and shortens the R&D cycle; 3. Devices under test with the same wavelength, different optical axis positions and spacings can be reused by changing the position of the independent simulator, and can be applied to different models of devices under test; 4. Devices under test with different wavelengths can be reused by replacing the beam combining mirror (material or coating) and the independent simulator; 5. Repeated use and adjustment are quick and convenient, with high precision, and there is no need to replace the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a beam combining component of a dual-band scene simulator of the present invention;

[0020] Figure 2 It is a schematic diagram of the component structure of a dual-band scene simulator beam combining assembly of the present invention;

[0021] Figure 3 It is a schematic diagram of the installation status of a dual-band scene simulator of the present invention.

[0022] In the figure: 1. flange, 2. beam combining box, 3. mirror frame, 4. first simulator connecting plate, 5. auxiliary translation stage, 6. second simulator connecting plate, 7. third simulator connecting plate, 8. main translation stage, 9. digital display scale, 10. beam combining mirror, 11. main body, 12. light hole, 13. cover plate, 14. precision lead screw, 15. optical rod, 16. visible light scene simulator, 17. infrared scene simulator. DETAILED DESCRIPTION

[0023] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0024] like Figure 1 As shown, a dual-band scene simulator beam combining component includes a main body 11, the main body 11 is provided with a flange 1, the flange 1 is movably connected with a beam combining box 2, the beam combining box 2 is provided with a beam combining mirror 10, the frame 3 of the beam combining mirror 10 is provided with an installation and positioning mechanism, the frame 3 is arranged around the beam combining mirror 10, and a translation mechanism is arranged on the planes opposite to the flange 1 and on the side surfaces of the beam combining box 2, the translation mechanism includes a main translation stage 8 and an auxiliary translation stage 5, the auxiliary translation stage 5 is connected with a second simulator connecting plate 6, the second simulator connecting plate 6 is connected to the first simulator connecting plate 4, the first simulator connecting plate 4 is connected to the third simulator connecting plate 7, and the third simulator connecting plate 7 is connected to the main translation stage 8.

[0025] The beam combining box 2 is the structural basis of the present invention, and is provided with mounting holes for connecting the flange 1, the main translation stage 8 and the auxiliary translation stage 5, and a mounting and positioning mechanism for the frame of the beam combining mirror 10. In order to increase reusability, a widened light hole 12 is provided.

[0026] According to the above content, the auxiliary translation stage 5 is divided into two parallel groups and together constitutes the translation track of the second simulator connecting plate 6. The translation track can adjust the position of the simulator.

[0027] According to the above content, the material of the translation track is stainless steel. The material of the translation track is stainless steel, which can ensure that the translation track has high precision, thin size, good rigidity and strong bearing capacity.

[0028] According to the above content, the auxiliary translation stage 5 and the second simulator connecting plate 6, the second simulator connecting plate 6 and the first simulator connecting plate 4, the first simulator connecting plate 4 and the third simulator connecting plate 7, and the third simulator connecting plate 7 and the main translation stage 8 are all movably connected by screws. The use of screw movably connected is simple to disassemble and convenient to maintain and use.

[0029] According to the above content, the main translation stage 8 is provided with a precision lead screw 14 and an optical rod 15 as guide rails.

[0030] According to the above content, the precision lead screw 14 is arranged in the middle position of the two optical rods 15 .

[0031] According to the above content, a digital ruler 9 is provided on the main translation stage 8. The main translation stage 8 can be driven by a handle or a stepping motor, and the accuracy can reach 0.01mm.

[0032] According to the above content, the first simulator connecting plate 4 is provided with a cover plate 13 to cover the light-through hole 12 on the beam combining box 2. The cover plate 13 can be widened to cover the widened light-through hole 12.

[0033] According to the above content, a layer of velvet light-absorbing material is coated on the back of the cover plate 13. The light-absorbing material is used to block stray light and reduce sliding friction resistance.

[0034] According to the above content, a dual-band scene simulator is provided, and the dual-band scene simulator includes the above-mentioned dual-band simulator beam combining component.

[0035] When a common optical axis simulator of visible light and infrared is needed, the visible light scene simulator and the infrared scene simulator are respectively connected to the first simulator connecting plates 4 of the two channels, and the parallel track positions are adjusted so that the two outgoing optical axes coincide with the optical axis of the device under test after refraction and reflection by the beam combiner, thereby forming a composite simulator for the device under test with a common optical axis; when a parallel optical axis simulator of visible light and infrared is needed, the visible light scene simulator and the infrared scene simulator are respectively connected to the first simulator connecting plates 4 of the two channels, and the parallel track positions are adjusted so that the two outgoing optical axes coincide with the two optical axes of the device under test after refraction and reflection by the beam combiner, thereby forming a composite simulator for the device under test with parallel optical axes.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual-band simulator beam combining component, characterized in that: The invention comprises a body (11), wherein the body (11) is provided with a flange (1), a beam combining box (2) is movably connected to the flange (1), a beam combining mirror (10) is provided on the beam combining box (2), a mounting and positioning mechanism is provided on the mirror frame (3) of the beam combining mirror (10), mirror frames (3) are arranged around the beam combining mirror (10), a translation mechanism is provided on the planes opposite to the flange (1) and on the side surfaces of the beam combining box (2), the translation mechanism comprises a main translation stage (8) and a secondary translation stage (5), a second simulator connecting plate (6) is connected to the second simulator connecting plate (6) and the first simulator connecting plate (4), the first simulator connecting plate (4) and the third simulator connecting plate (7), and the third simulator connecting plate (7) is connected to the main translation stage (8); The main translation stage (8) is provided with a digital scale (9), and the first simulator connection plate (4) is provided with a cover plate (13) for shielding the light-through hole (12) on the beam combining box (2), and the back of the cover plate (13) is covered with a layer of velvet light-absorbing material.

2. The dual-band simulator beam combining component according to claim 1, characterized in that: The auxiliary translation platforms (5) are divided into two parallel groups and together form a translation track of the second simulator connection plate (6).

3. The dual-band simulator beam combining assembly according to claim 2, characterized in that: The material of the above-mentioned translation rail is stainless steel.

4. The dual-band simulator beam combining component according to claim 1, characterized in that: The auxiliary translation platform (5) and the second simulator connection plate (6), the second simulator connection plate (6) and the first simulator connection plate (4), the first simulator connection plate (4) and the third simulator connection plate (7), and the third simulator connection plate (7) and the main translation platform (8) are all movably connected via screws.

5. The dual-band simulator beam combining component according to claim 1, characterized in that: The main translation stage (8) is provided with a precision lead screw (14) and a light rod (15) as guide rails.

6. The dual-band simulator beam combining assembly according to claim 5, characterized in that: The precision lead screw (14) is arranged at a middle position between the two optical rods (15).

7. A dual-band scene simulator, characterized in that: The dual-band scene simulator comprises the dual-band simulator beam combining component described in any one of claims 1-6.

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