Multiband photoelectric aiming system

Abstract

The utility model relates to a multiband photoelectric aiming system, and belongs to the technical field of photoelectric systems, the multiband photoelectric aiming system comprises a small-view-field optical channel, the small-view-field optical channel comprises a common-aperture primary and secondary mirror assembly, a first spectroscope, and a television sensor, a medium-wave infrared sensor and a short-wave infrared sensor which are used for receiving emergent beams of the first spectroscope; and a field-of-view switching reflector group is arranged between the large-field-of-view optical channel and the small-field-of-view optical channel, and the field-of-view switching reflector group is used for switching an incident beam of the large-field-of-view optical channel into the small-field-of-view optical channel, so that the television sensor, the medium-wave infrared sensor and the short-wave infrared sensor can receive the incident beam of the large-field-of-view optical channel. According to the multiband photoelectric aiming system, compatibility of large and small view fields can be achieved, part of light paths and sensors are shared, the size envelope is effectively reduced, and miniaturization integration of multiple bands can be achieved by flexibly combining the photoelectric platform structure configuration.

Description

Technical Field

[0001] The present application relates to the technical field of optoelectronic systems, and in particular to a multi-band optoelectronic aiming system. Background Art

[0002] The multi-band optoelectronic aiming system uses a variety of professional means such as optics, structure, circuit, servo, etc. to achieve the systematic integration of multi-band detection, measurement and guidance loads, and realize miniaturization, intelligence and multi-function. Generally, there are two types of aperture forms: the aperture form uses an independent optical channel for each sensor, and the common aperture form uses a common optical channel for multiple sensors.

[0003] Conventional divided-aperture optoelectronic systems have the characteristics of simple structure, but are limited by the payload size and space constraints brought about by the optoelectronic platform configuration. It is generally difficult to achieve a large optical aperture in multiple bands, which makes it difficult to further improve the system capabilities. Although a single common-aperture form can achieve the integration of some bands, it is difficult to take into account both large and small fields of view and multiple transmitting and receiving channels.

[0004] Therefore, it is necessary to study and improve the existing structure and provide a multi-band optoelectronic aiming system in order to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above-mentioned deficiencies or one of the deficiencies, the embodiments of the present application provide a multi-band optoelectronic aiming system, which can achieve compatibility between large and small fields of view, share part of the optical path and sensors, effectively reduce the volume envelope, and make it possible to flexibly combine the optoelectronic platform structure configuration to realize the miniaturized integration of multiple bands.

[0006] The embodiment of the present application provides a multi-band optoelectronic aiming system, comprising:

[0007] A small field of view optical channel, comprising a common aperture primary and secondary mirror assembly, a first beam splitter, and a television sensor, a medium-wave infrared sensor, and a short-wave infrared sensor for receiving a light beam emitted from the first beam splitter;

[0008] A large field of view optical channel is provided with a field of view switching reflector group between it and the small field of view optical channel. The field of view switching reflector group is used to cut the incident light beam of the large field of view optical channel into the small field of view optical channel, so that the television sensor, the medium-wave infrared sensor and the short-wave infrared sensor can receive the incident light beam of the large field of view optical channel.

[0009] In some embodiments, the common aperture primary and secondary mirror assembly includes a primary mirror and a secondary mirror arranged coaxially;

[0010] The reflecting surface of the primary mirror is concave and a central opening is provided on the primary mirror. The reflecting surface of the secondary mirror is convex. The primary mirror is used to reflect the incident light beam once, and the secondary mirror is used to reflect the incident light beam after the first reflection for a second time, so that the incident light beam after the second reflection is emitted from the central opening of the primary mirror to the first beam splitter.

[0011] In some embodiments, the large field of view optical channel includes a first optical channel for receiving visible light and near infrared, the field of view switching reflector group includes a first reflector arranged in the first optical channel, and a first switching mirror arranged between the first reflector and the first beam splitter, and the first switching mirror can fold the reflected light beam of the first reflector or fold the outgoing light beam of the first beam splitter by changing the rotation angle.

[0012] In some embodiments, a first fast-reflection mirror for calibrating the optical axis is arranged between the first switching mirror and the television sensor, and a filter group is arranged between the first fast-reflection mirror and the television sensor, and the filter group includes a visible light filter and a near-infrared filter that can be switched on the optical path.

[0013] In some embodiments, the large field of view optical channel includes a second optical channel for receiving medium-wave infrared, the field of view switching reflector group includes a second reflector disposed in the second optical channel, and a second switching mirror disposed between the second reflector and the first beam splitter, and the second switching mirror can fold the reflected light beam of the second reflector or fold the outgoing light beam of the first beam splitter by changing the rotation position;

[0014] A second fast reflection mirror for calibrating the optical axis is arranged between the second switching mirror and the medium-wave infrared sensor.

[0015] In some embodiments, the small field of view optical channel also includes a laser receiver and a second beam splitter arranged between the laser receiver and the first beam splitter, the second beam splitter is used to further split the outgoing light beam of the first beam splitter, and the laser receiver and the short-wave infrared sensor are used to receive the outgoing light beam of the second beam splitter.

[0016] In some embodiments, the large field of view optical channel includes a third optical channel for receiving short-wave infrared, the field of view switching reflector group includes a third reflector arranged in the third optical channel, and a third switching mirror arranged between the third reflector and the second beam splitter, and the third switching mirror can fold the reflected light beam of the third reflector or fold the outgoing light beam of the second beam splitter by changing the rotation position.

[0017] In some embodiments, a laser emission channel is further included, wherein the laser emission channel includes a first laser emitter and a second laser emitter, and a third beam splitter for combining the first laser emitter and the second laser emitter into a combined beam and outputting the combined beam.

[0018] In some embodiments, the laser emission channel is further provided with a fourth reflector for reflecting the light beam emitted by the third beam splitter, and a beam expander lens group for expanding the light beam reflected by the fourth reflector.

[0019] In some embodiments, the large field of view optical channel includes a first optical channel, a second optical channel, and a third optical channel, and the first optical channel, the second optical channel, and the third optical channel are each provided with a converging lens group for converging and collimating an incident light beam.

[0020] The beneficial effects of the technical solution provided by this application include:

[0021] The embodiment of the present application provides a multi-band optoelectronic aiming system, since the small field of view optical channel includes a common aperture primary and secondary mirror assembly, a first beam splitter, and a television sensor, a medium-wave infrared sensor, and a short-wave infrared sensor for receiving an output light beam from the first beam splitter;

[0022] The optical axes of the large field of view optical channel and the small field of view optical channel are parallel to each other. A field of view switching reflector group is arranged between the large field of view optical channel and the small field of view optical channel. The field of view switching reflector group is used to cut the incident light beam of the large field of view optical channel into the small field of view optical channel so that the television sensor, the medium-wave infrared sensor and the short-wave infrared sensor can receive the incident light beam of the large field of view optical channel.

[0023] Therefore, the small field of view optical channel can receive visible light, near infrared, medium wave infrared and short wave infrared through television sensors, medium wave infrared sensors and short wave infrared sensors, realizing the integration of multiple optical bands. At the same time, the field of view switching reflector group can achieve compatibility between large and small fields of view, and share some optical paths and sensors, which can effectively reduce the volume envelope and make it possible to flexibly combine the optoelectronic platform structure configuration to realize the miniaturization integration of multiple bands. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of the principle of an optoelectronic aiming system according to an embodiment of the present application;

[0026] Figure 2 This is a layout diagram of the apertures of each channel of the optoelectronic aiming system according to an embodiment of the present application.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 10. Small field of view optical channel; 11. Secondary mirror; 12. Primary mirror; 121. Central opening; 13. First beam splitter; 14. TV sensor; 15. Medium wave infrared sensor; 16. Short wave infrared sensor; 17. Second beam splitter; 18. Laser receiver;

[0029] 20. first optical channel; 21. first reflecting mirror; 22. first switching mirror; 23. first fast-reflecting mirror; 24. filter group; 25. converging lens group;

[0030] 30. second optical channel; 31. second reflecting mirror; 32. second switching mirror; 33. second fast-reflecting mirror;

[0031] 40. third optical channel; 41. third reflecting mirror; 42. third switching mirror;

[0032] 50. Laser emission channel; 51. First laser emitter; 52. Second laser emitter; 53. Third beam splitter; 54. Fourth reflector; 55. Beam expansion lens group. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] In order to solve the above-mentioned deficiencies or one of the deficiencies, the embodiments of the present application provide a multi-band optoelectronic aiming system, which can achieve compatibility between large and small fields of view, share part of the optical path and sensors, effectively reduce the volume envelope, and make it possible to flexibly combine the optoelectronic platform structure configuration to realize the miniaturized integration of multiple bands.

[0035] See also Figure 1 and Figure 2 As shown, the embodiment of the present application provides a multi-band optoelectronic aiming system, comprising:

[0036] A small field of view optical channel 10, which includes a common aperture primary and secondary mirror assembly, a first beam splitter 13, and a television sensor 14, a medium-wave infrared sensor 15, and a short-wave infrared sensor 16 for receiving a light beam emitted from the first beam splitter 13;

[0037] A field of view switching reflector group is arranged between the large field of view optical channel and the small field of view optical channel 10. The field of view switching reflector group is used to cut the incident light beam of the large field of view optical channel into the small field of view optical channel 10, so that the television sensor 14, the medium-wave infrared sensor 15 and the short-wave infrared sensor 16 can receive the incident light beam of the large field of view optical channel.

[0038] The multi-band optoelectronic aiming system of the embodiment of the present application can receive visible light, near infrared, medium-wave infrared and short-wave infrared through the common aperture primary and secondary mirror components and the first spectroscope 13. Visible light and near infrared share a common television sensor 14 for reception, the medium-wave infrared sensor 15 corresponds to receiving medium-wave infrared, and the short-wave infrared sensor 16 corresponds to receiving short-wave infrared, thereby realizing the integration of multiple optical bands.

[0039] At the same time, the field of view switching reflector group can achieve compatibility between large and small fields of view, and share some optical paths and sensors, which can effectively reduce the volume envelope and is not limited by the payload size space constraints brought by the optoelectronic platform configuration. It makes it possible to flexibly combine the optoelectronic platform structure configuration to achieve miniaturized integration of multiple bands.

[0040] In this embodiment, the small field of view optical channel 10 is a common aperture channel, which adopts a cassette common aperture form, covering long-focus large-aperture medium-wave infrared, long-focus large-aperture visible light / near-infrared, and short-wave infrared. The incident light is divided into three optical paths of 0.4 to 0.9um, 0.9 to 1.7um, and 3 to 5um through the common aperture primary and secondary mirror components and the first beam splitter 13, which are received by the television sensor 14, the short-wave infrared sensor 16 and the medium-wave infrared sensor 15 respectively.

[0041] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, wherein the co-aperture primary and secondary mirror assembly of the multi-band optoelectronic aiming system comprises a primary mirror 12 and a secondary mirror 11 which are coaxially arranged;

[0042] The reflecting surface of the primary mirror 12 is concave and a central opening 121 is provided on the primary mirror 12. The reflecting surface of the secondary mirror 11 is convex. The primary mirror 12 is used to reflect the incident light beam once, and the secondary mirror 11 is used to reflect the incident light beam after the first reflection for a second time, so that the incident light beam after the second reflection is emitted from the central opening 121 of the primary mirror 12 to the first beam splitter 13.

[0043] The primary mirror 12 and the secondary mirror 11 of the embodiment of the present application are coaxially arranged, the reflecting surface of the primary mirror 12 is concave, the reflecting surface of the secondary mirror 11 is convex, and a central opening 121 is provided on the primary mirror 12. The concave surface of the primary mirror 12 and the convex surface of the secondary mirror 11 cooperate with each other to converge the incident light of the small field of view optical channel 10 and emit it from the central opening 121 of the primary mirror 12 to the first beam splitter 13, so that the first beam splitter 13 can divide it into three optical paths, which are received by the television sensor 14, the medium-wave infrared sensor 15 and the short-wave infrared sensor 16 respectively.

[0044] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, wherein a large field-of-view optical channel of the multi-band optoelectronic aiming system includes a first optical channel 20 for receiving visible light and near-infrared light, a field-of-view switching reflector group includes a first reflector 21 arranged in the first optical channel 20, and a first switching mirror 22 arranged between the first reflector 21 and the first beam splitter 13, and the first switching mirror 22 can fold the reflected light beam of the first reflector 21 or fold the outgoing light beam of the first beam splitter 13 by changing the rotation angle.

[0045] The first optical channel 20 of the embodiment of the present application can receive visible light and near infrared light. The field of view switching reflector includes a first reflector 21 and a first switching mirror 22. When the first switching mirror 22 is rotated to be parallel to the first reflector 21, the visible light and near infrared light entering the first optical channel 20 can be folded twice by 90 degrees and then merged into the small field of view optical channel 10, so that they are received by the television sensor 14.

[0046] When it is necessary to switch back to the small field of view optical channel 10 , the first switching mirror 22 is rotated and reset so that the first switching mirror 22 can fold the visible light and near infrared light separated by the first beam splitter 13 by 90 degrees so that they can be received by the television sensor 14 .

[0047] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, in which a first quick-reflection mirror 23 for calibrating the optical axis is arranged between the first switching mirror 22 and the television sensor 14 of the multi-band optoelectronic aiming system, and a filter group 24 is arranged between the first quick-reflection mirror 23 and the television sensor 14, and the filter group 24 includes a visible light filter and a near-infrared filter that can be switched on the optical path.

[0048] The first fast mirror 23 of the embodiment of the present application is used for adjusting and calibrating the optical axis. The filter group 24 includes a visible light filter and a near-infrared filter. By switching the visible light filter and the near-infrared filter on the optical path, filtering of visible light or near-infrared can be achieved, which facilitates the television sensor 14 to separately receive visible light or near-infrared.

[0049] In this embodiment, the incident light is divided into three optical paths of 0.4 to 0.9 um, 0.9 to 1.7 um, and 3 to 5 um by cooperating with the common aperture primary and secondary mirror assembly and the first beam splitter 13; wherein the 0.4 to 0.9 um optical path is switched between the large and small fields of view through the first switching mirror 22, and reaches the front end of the TV sensor 14 through the first fast mirror 23;

[0050] Visible light (0.4 to 0.7um) and near infrared (0.7 to 0.9um) can be switched through a filter device. Large and small fields of view as well as visible light and near infrared bands share a TV sensor 14. The first fast mirror 23 can adjust and calibrate the visible light and near infrared optical axes.

[0051] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, wherein a large field of view optical channel of the multi-band optoelectronic aiming system comprises a second optical channel (30) for receiving medium-wave infrared, a field of view switching reflector group comprises a second reflector (31) arranged in the second optical channel (30), and a second switching mirror (32) arranged between the second reflector (31) and the first beam splitter (13), and the second switching mirror (32) can fold the reflected light beam of the second reflector (31) or fold the outgoing light beam of the first beam splitter (13) by changing the rotation position;

[0052] A second fast reflection mirror (33) for calibrating the optical axis is arranged between the second switching mirror (32) and the medium-wave infrared sensor (15).

[0053] The second optical channel 30 of the embodiment of the present application is used to receive medium-wave infrared. The field-of-view switching reflector includes a second reflector 31 and a second switching mirror 32. When the second switching mirror 32 is rotated to be parallel to the second reflector 31, the medium-wave infrared entering the second optical channel 30 can be folded twice by 90 degrees and then merged into the small-field-of-view optical channel 10, so that it can be received by the medium-wave infrared sensor 15.

[0054] When it is necessary to switch back to the small field of view optical channel 10 , the second switching mirror 32 is rotated and reset so that the second switching mirror 32 can fold the medium-wave infrared separated by the first beam splitter 13 by 90 degrees so that it can be received by the television sensor 14 .

[0055] In this embodiment, the incident light is divided into three optical paths of 0.4 to 0.9 um, 0.9 to 1.7 um, and 3 to 5 um through the cooperation of the common aperture primary and secondary mirror assembly and the first beam splitter 13; among them, the 3 to 5 um optical path is switched between the large and small fields of view through the second switching mirror 32, and reaches the front end of the medium-wave infrared sensor 15 through the second fast reflection mirror 33. The large and small fields of view share one medium-wave infrared sensor 15, and the second fast reflection mirror 33 can realize the adjustment and calibration of the medium-wave infrared optical axis.

[0056] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, wherein the small field of view optical channel 10 of the multi-band optoelectronic aiming system also includes a laser receiver 18, and a second beam splitter 17 arranged between the laser receiver 18 and the first beam splitter 13, the second beam splitter 17 is used to split the outgoing light beam of the first beam splitter 13 again, and the laser receiver 18 and the short-wave infrared sensor 16 are used to receive the outgoing light beam of the second beam splitter 17.

[0057] The small field of view optical channel 10 of the embodiment of the present application also includes a laser receiver 18, that is, the laser receiving channel shares part of the optical path of the small field of view optical channel 10 to realize laser reception. Specifically, the incident light is divided into three optical paths of 0.4 to 0.9um, 0.9 to 1.7um, and 3 to 5um through the cooperation of the common aperture primary and secondary mirror assembly and the first beam splitter 13; among which, the 9 to 1.7um optical path is divided into a laser band that can be received by the laser receiver 18 (covering the typical application bands of 1.064 and 1.57um) and a short-wave infrared that can be received by the short-wave infrared sensor 16 through the third beam splitter 53.

[0058] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, wherein the large field of view optical channel of the multi-band optoelectronic aiming system includes a third optical channel 40 for receiving short-wave infrared, the field of view switching reflector group includes a third reflector 41 arranged in the third optical channel 40, and a third switching mirror 42 arranged between the third reflector 41 and the second beam splitter 17, and the third switching mirror 42 can fold the reflected light beam of the third reflector 41 or fold the outgoing light beam of the second beam splitter 17 by changing the rotation position.

[0059] The third optical channel 40 of the embodiment of the present application is used to receive short-wave infrared, and the field of view switching reflector includes a third reflector 41 and a third switching mirror 42. When the third switching mirror 42 is rotated to be parallel to the third reflector 41, the short-wave infrared entering the third optical channel 40 can be folded twice by 90 degrees and then merged into the small field of view optical channel 10, so that it can be received by the short-wave infrared sensor 16;

[0060] When it is necessary to switch back to the small field of view optical channel 10 , the third switching mirror 42 is rotated and reset so that the third switching mirror 42 can fold the short-wave infrared separated by the second beam splitter 17 by ninety degrees so that it can be received by the short-wave infrared sensor 16 .

[0061] In this embodiment, the incident light is divided into three optical paths of 0.4 to 0.9um, 0.9 to 1.7um, and 3 to 5um through the cooperation of the common aperture primary and secondary mirror assembly and the first beam splitter 13; among them, the 9 to 1.7um optical path is divided into a laser receiving channel (covering the typical application bands of 1.064 and 1.57um) and a short-wave infrared channel through the third beam splitter 53. The short-wave infrared is switched between the large and small fields of view through the switching mirror 3 and reaches the front end of the short-wave infrared sensor 16. The large and small fields of view share one short-wave infrared sensor 16.

[0062] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, which also includes a laser emission channel 50, the laser emission channel 50 includes a first laser emitter 51 and a second laser emitter 52, and a third beam splitter 53 that combines the first laser emitter 51 and the second laser emitter 52 for output.

[0063] The laser emission channel 50 of the embodiment of the present application may include laser irradiation emission and laser indication emission, such as the first laser emitter 51 (which can emit 0.8um band) and the second laser emitter 52 (which emits 1.064um and 1.57um dual bands) can be combined and output through the third beam splitter 53. Furthermore, the laser emission channel 50 can extend the optical path according to needs, such as designing it to pass through the rotating axis system of the optoelectronic platform to achieve the installation of a high-power laser.

[0064] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, in which a fourth reflector 54 for reflecting the outgoing light beam of the third beam splitter 53 and a beam expanding lens group 55 for expanding the reflected light beam of the fourth reflector 54 are also provided in the laser emission channel 50 of the multi-band optoelectronic aiming system.

[0065] The laser emission channel 50 of the embodiment of the present application is also provided with a fourth reflector 54, which can fold the outgoing light beam of the third beam splitter 53 by 90 degrees, shorten the laser emission channel 50, further reduce the volume envelope, and can be flexibly arranged in combination with the structure configuration of the optoelectronic platform. In addition, a beam expansion lens group 55 is also provided in the laser emission channel 50 to expand the outgoing light beam.

[0066] In some alternative embodiments: See Figure 1 and Figure 2 As shown, an embodiment of the present application provides a multi-band optoelectronic aiming system, wherein the large field-of-view optical channel of the multi-band optoelectronic aiming system includes a first optical channel 20, a second optical channel 30 and a third optical channel 40, and the first optical channel 20, the second optical channel 30 and the third optical channel 40 are each provided with a converging lens group 25 for converging and collimating an incident light beam.

[0067] The large field of view optical channel of the embodiment of the present application includes a first optical channel 20, a second optical channel 30 and a third optical channel 40, which are arranged around the small field of view optical channel 10, and the small field of view optical channel 10 receives optical bands covering visible light, near infrared, medium-wave infrared and short-wave infrared;

[0068] The first optical channel 20 corresponds to the visible light near-infrared large field of view channel, the second optical channel 30 corresponds to the medium-wave infrared large field of view channel, and the third optical channel 40 corresponds to the short-wave infrared large field of view channel. The first optical channel 20, the second optical channel 30 and the third optical channel 40 are all provided with a converging lens group 25, which can converge and collimate the incident light beam.

[0069] In summary, the present application aims to provide a novel multi-band optoelectronic aiming system, which can flexibly combine the optoelectronic platform structure configuration to realize the miniaturized integration of multiple bands, and take into account the requirements of large and small fields of view, long viewing distance, active and passive transmitting and receiving channels, etc., and can realize large-caliber and long-viewing distance detection, identification, tracking and positioning.

[0070] The optical bands to be integrated include visible light (0.4 to 0.7um), near infrared (0.7 to 0.9um), short-wave infrared (0.9 to 1.7um), and medium-wave infrared (3 to 5um). In addition to covering conventional passive reconnaissance and detection, it also integrates active laser indication bands (0.8um), non-human eye-safe ranging illumination bands (1.064um), and human eye-safe ranging illumination bands (1.57um). It can greatly enrich the system functions of conventional reconnaissance and aiming optoelectronics.

[0071] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0072] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0073] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A multi-band optoelectronic aiming system, characterized in that: include: A small field of view optical channel (10), comprising a common aperture primary and secondary mirror assembly, a first beam splitter (13), and a television sensor (14), a medium-wave infrared sensor (15), and a short-wave infrared sensor (16) for receiving an output light beam from the first beam splitter (13); A large field of view optical channel is provided with a field of view switching reflector group between the large field of view optical channel and the small field of view optical channel (10), and the field of view switching reflector group is used to cut the incident light beam of the large field of view optical channel into the small field of view optical channel (10), so that the television sensor (14), the medium-wave infrared sensor (15) and the short-wave infrared sensor (16) can receive the incident light beam of the large field of view optical channel.

2. The multi-band optoelectronic aiming system according to claim 1, characterized in that: The common aperture primary and secondary mirror assembly comprises a primary mirror (12) and a secondary mirror (11) which are coaxially arranged; The reflection surface of the primary mirror (12) is a concave surface and a central opening (121) is also provided on the primary mirror (12); the reflection surface of the secondary mirror (11) is a convex surface; the primary mirror (12) is used to reflect an incident light beam once, and the secondary mirror (11) is used to reflect the incident light beam after the primary reflection twice, so that the incident light beam after the secondary reflection is emitted from the central opening (121) of the primary mirror (12) to the first beam splitter (13).

3. The multi-band optoelectronic aiming system according to claim 1, characterized in that: The large field of view optical channel comprises a first optical channel (20) for receiving visible light and near infrared light, the field of view switching reflector group comprises a first reflector (21) arranged in the first optical channel (20), and a first switching mirror (22) arranged between the first reflector (21) and a first beam splitter (13), the first switching mirror (22) being able to fold a reflected light beam of the first reflector (21) or fold an outgoing light beam of the first beam splitter (13) by changing a rotation angle.

4. The multi-band optoelectronic aiming system according to claim 3, characterized in that: A first fast-reflection mirror (23) for calibrating the optical axis is arranged between the first switching mirror (22) and the television sensor (14), and a filter group (24) is arranged between the first fast-reflection mirror (23) and the television sensor (14), wherein the filter group (24) comprises a visible light filter and a near-infrared filter that can be switched on the optical path.

5. The multi-band optoelectronic aiming system according to claim 1, characterized in that: The large field of view optical channel comprises a second optical channel (30) for receiving medium-wave infrared, the field of view switching reflector group comprises a second reflector (31) arranged in the second optical channel (30), and a second switching mirror (32) arranged between the second reflector (31) and the first beam splitter (13), the second switching mirror (32) being capable of folding a reflected light beam of the second reflector (31) or folding an outgoing light beam of the first beam splitter (13) by changing a rotation position; A second fast reflection mirror (33) for calibrating the optical axis is arranged between the second switching mirror (32) and the medium-wave infrared sensor (15).

6. The multi-band optoelectronic aiming system according to claim 1, characterized in that: The small field of view optical channel (10) further comprises a laser receiver (18) and a second beam splitter (17) arranged between the laser receiver (18) and the first beam splitter (13), wherein the second beam splitter (17) is used to split the outgoing light beam of the first beam splitter (13) again, and the laser receiver (18) and the short-wave infrared sensor (16) are used to receive the outgoing light beam of the second beam splitter (17).

7. The multi-band optoelectronic aiming system according to claim 6, characterized in that: The large field of view optical channel comprises a third optical channel (40) for receiving short-wave infrared, the field of view switching reflector group comprises a third reflector (41) arranged in the third optical channel (40), and a third switching mirror (42) arranged between the third reflector (41) and the second beam splitter (17), and the third switching mirror (42) can fold the reflected light beam of the third reflector (41) or fold the outgoing light beam of the second beam splitter (17) by changing the rotation position.

8. The multi-band optoelectronic aiming system according to claim 1, characterized in that: The invention also comprises a laser emission channel (50), wherein the laser emission channel (50) comprises a first laser emitter (51) and a second laser emitter (52), and a third beam splitter (53) for combining the first laser emitter (51) and the second laser emitter (52) for output.

9. The multi-band optoelectronic aiming system according to claim 8, characterized in that: The laser emission channel (50) is also provided with a fourth reflector (54) for reflecting the light beam emitted by the third beam splitter (53), and a beam expansion lens group (55) for expanding the light beam reflected by the fourth reflector (54).

10. The multi-band optoelectronic aiming system according to claim 1, characterized in that: The large-field-of-view optical channel comprises a first optical channel (20), a second optical channel (30) and a third optical channel (40), wherein each of the first optical channel (20), the second optical channel (30) and the third optical channel (40) is provided with a converging lens group (25) for converging and collimating an incident light beam.

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