CN120630477B - A multi-spectral common aperture integrated optoelectronic payload optical system - Google Patents
A multi-spectral common aperture integrated optoelectronic payload optical systemInfo
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Abstract
A multi-spectrum common-aperture integrated photoelectric load optical system belongs to the technical field of optical engineering and solves the problems that the existing system cannot evaluate imaging performance in a split channel mode and has long adjustment test period. The system comprises a coaxial two-reflection afocal optical configuration, wherein light rays of a target scene are split through the coaxial two-reflection afocal optical system and the fast reflector and respectively enter a medium-wave infrared channel, a long-wave infrared channel, a visible light channel and a laser receiving channel. The four channels are integrated together in a mode of sharing the coaxial two-reflection afocal system and the spectroscope, so that an optical path is greatly simplified, the coaxial two-reflection afocal system and the imaging system of each channel can be used for independently completing imaging, each channel can be independently assembled and adjusted, the imaging performance of each channel is evaluated, and finally, integral splicing is carried out, so that the assembling and adjusting difficulty and cost can be greatly reduced. The invention can provide functions of optical searching reconnaissance, target identification tracking, target indication positioning and the like for the fighter plane, and realize all-weather and all-day information acquisition.
Description
Technical Field
The invention relates to the technical field of optical engineering, in particular to a multispectral common-aperture integrated photoelectric load optical system.
Background
The photoelectric load of advanced fighter is mainly used for providing the fighter with the functions of optical searching and reconnaissance, target identification and tracking, target indication and positioning and the like. The information quantity obtained by the optical system with a single wave band is limited, and the requirements of battlefield situation awareness, emergency disaster relief and the like cannot be completely met. The detection advantages of laser, visible light, medium-wave infrared and long-wave infrared spectrum bands are utilized to carry out composite imaging, so that the detection capability and precision of the load can be improved, and all-weather and all-day information acquisition is realized. Thus, multispectral integrated imaging becomes an important point for photoelectric load research.
The multi-spectral optical system adopts a common aperture mode, so that the acting distance can be effectively increased, and the volume of the system can be effectively reduced. The existing multispectral common-aperture integrated optical system generally adopts an overall design thought when in design, namely the shared optical system and the relay system in each spectrum meet the design requirement as a whole. In such a design, the shared optical system and each spectrum relay system cannot independently realize a perfect imaging effect, and therefore, the imaging performance evaluation of the optical system can only be performed after the whole adjustment is completed. When the number of optical elements in the multi-spectrum integrated optical system is large, especially the number of on-axis reflectors or off-axis reflectors is increased, the whole assembly and adjustment test work faces a great challenge, so that the development period of the optical system can be prolonged, and the development cost can be increased.
Disclosure of Invention
The invention aims to solve the problems in the background technology, and provides a multi-spectral band common-aperture integrated photoelectric load optical system, which integrates laser, visible light, medium-wave infrared and long-wave infrared spectral bands together in a mode of sharing a front group coaxial two-reflection afocal system and a spectroscope, so that the optical path is greatly simplified, the front group coaxial two-reflection afocal system and an imaging system of each channel can be independently imaged, each channel can be independently assembled and adjusted, and finally, integral splicing is carried out, and the assembling and adjusting difficulty is reduced.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The invention provides a multispectral common-aperture integrated photoelectric load optical system, which comprises a reflection beam-splitting system, a medium-wavelength shared lens assembly, a long-wavelength infrared channel, a medium-wavelength infrared channel, a visible light-laser shared lens assembly, a visible light channel and a laser receiving channel, wherein the reflection beam-splitting system is arranged on the optical system;
the medium-wavelength shared lens component is used as a shared component of a long-wavelength infrared channel and a medium-wavelength infrared channel;
the visible light-laser shared lens component is used as a shared component of a visible light channel and a laser receiving channel;
the reflection beam-splitting system, the medium-wavelength shared lens component and the long-wavelength infrared channel form a long-wavelength infrared optical system;
the reflection beam-splitting system, the medium wave-wavelength shared lens component and the medium wave infrared channel form a medium wave infrared optical system;
The reflection light splitting system, the visible light-laser sharing lens assembly and the visible light channel form a visible light optical system;
the reflection beam splitting system, the visible light-laser shared lens assembly and the laser receiving channel form a laser receiving optical system;
The reflection light splitting system is used for reflecting light rays of a target scene for multiple times and dividing the light rays into a medium wave-long wave spectrum band and a visible light-laser spectrum band;
The medium-wavelength shared lens component is used for respectively guiding the medium-wavelength spectrum into the medium-wavelength infrared channel and the long-wavelength infrared channel;
the visible light-laser shared lens component is used for guiding the visible light-laser spectrum into the visible light channel and the laser receiving channel respectively.
Further, the reflection and light splitting system comprises a main reflector, a secondary reflector, a quick reflector, a spectroscope and a folding axis mirror;
The light of the target scene is incident to the main reflector, the secondary reflector is arranged on the reflecting light path of the main reflector, the quick reflector is arranged on the reflecting light path of the secondary reflector, the spectroscope is arranged on the reflecting light path of the quick reflector and is used for dividing the light into a middle wave-long wave spectrum and a visible light-laser spectrum, the spectroscope is also used for respectively guiding the visible light-laser spectrum into a visible light channel and a laser channel through the visible light-laser shared lens assembly, and the folding axis mirror is arranged on the reflecting light path of the spectroscope and is used for respectively guiding the middle wave-long wave spectrum into the middle wave infrared channel and the long wave infrared channel through the middle wave-long wave shared lens assembly.
Further, the main reflector, the secondary reflector and the quick reflector form a coaxial two-reflection afocal system together, the coaxial two-reflection afocal system is used for receiving light and compressing the caliber of a light beam, the central view field is perfect to image, and the coaxial two-reflection afocal system can be independently assembled and adjusted.
Further, the quick reflection mirror and the spectroscope are both inclined 45 degrees with the optical axis;
the four-channel shared quick reflection mirror is used for compensating visual axis shake caused by external disturbance;
The spectroscope shared by four channels is used for transmitting visible light and laser spectrum and reflecting medium-wave infrared and long-wave infrared spectrum.
Further, the long-wave infrared channel comprises a medium-wave and long-wave shared lens assembly, a long-wave first reflecting mirror, a long-wave first lens, a long-wave second reflecting mirror, a long-wave third lens, a long-wave fourth lens and a long-wave detector which are sequentially arranged along the direction of the light path;
the medium-wavelength shared lens component comprises a medium-wavelength first shared lens, a medium-wavelength second shared lens, a medium-wavelength third shared lens, a medium-wavelength fourth shared lens and a medium-wavelength spectroscope which are sequentially arranged along the direction of the light path;
the long-wave infrared spectrum band sequentially passes through the refraction of the middle-wave first common lens, the refraction of the middle-wave second common lens, the refraction of the middle-wave third common lens, the refraction of the middle-wave fourth common lens, the reflection of the middle-wave spectroscope, the reflection of the long-wave first reflecting mirror, the refraction of the long-wave first lens, the refraction of the long-wave second lens, the reflection of the long-wave second reflecting mirror, the refraction of the long-wave third lens, the refraction of the long-wave fourth lens and finally the incidence to the long-wave detector for long-wave infrared channel imaging.
Further, the medium wave infrared channel comprises a medium wave-long wave shared lens assembly, a medium wave first reflecting mirror, a medium wave first lens, a medium wave second reflecting mirror, a medium wave second lens, a medium wave third lens and a medium wave detector which are sequentially arranged along the direction of the light path;
The middle wave infrared spectrum band sequentially passes through middle wave-long wave first common lens refraction, middle wave-long wave second common lens refraction, middle wave-long wave third common lens refraction, middle wave-long wave fourth common lens refraction, middle wave spectroscope refraction, middle wave first reflector reflection, middle wave first lens refraction, middle wave second reflector reflection, middle wave second lens refraction, middle wave third lens refraction and finally enters the middle wave detector to image a middle wave infrared channel.
Furthermore, the long-wave infrared channel and the medium-wave infrared channel both adopt secondary imaging structures, the entrance pupil is arranged at the exit pupil position of the coaxial two-reflection afocal system, and the exit pupil position is respectively matched with cold diaphragms of the long-wave detector and the medium-wave detector.
Further, the visible light channel comprises a visible light-laser shared lens component, a visible light first lens, a visible light filter, a visible light reflector and a visible light detector which are sequentially arranged along the direction of the light path;
the visible light-laser shared lens component comprises a visible light-laser first shared lens, a visible light-laser second shared lens, a visible light-laser third shared lens, a visible light-laser fourth shared lens, a visible light-laser fifth shared lens and a visible light-laser spectroscope which are sequentially arranged along the direction of the light path;
The visible spectrum segment is refracted by the first common lens, the second common lens, the third common lens, the fourth common lens, the fifth common lens, the spectroscope, the first lens, the filter, the reflector and finally incident to the light detector for imaging the visible light channel.
Further, the laser receiving channel comprises a visible light-laser shared lens component, a laser first lens, a laser filter and a laser receiving sensor which are sequentially arranged along the direction of the light path;
The laser spectrum is refracted by the first common lens, the second common lens, the third common lens, the fourth common lens, the fifth common lens, the spectroscope, the first lens, the filter and the receiving sensor to receive the echo signal.
Further, the visible light channel and the laser channel all adopt a primary imaging structure.
Further, the primary mirror surface is a paraboloid, and the secondary mirror surface is a paraboloid.
Further, the medium wave infrared channel can be imaged alone.
Further, the long-wave infrared channels described above may be imaged separately.
Further, the visible light channels described above may be imaged separately.
The beneficial effects of the invention are as follows:
1. the invention discloses a multispectral common-aperture integrated photoelectric load optical system, which adopts a coaxial two-reflection afocal optical configuration, and light rays of a target scene are split after passing through the coaxial two-reflection afocal optical system and a spectroscope and respectively enter a medium-wave infrared channel, a long-wave infrared channel, a visible light channel and a laser receiving channel. The four channels are integrated together in a mode of sharing the front group coaxial two-reflection afocal system and the spectroscope, so that the optical path is greatly simplified, the volume of the optical system is greatly reduced, the front group coaxial two-reflection afocal system and the imaging system of each channel can be independently used for perfect imaging, each channel can be independently assembled and adjusted, the imaging performance of each channel is evaluated, and finally, the integral splicing is carried out, so that the assembling difficulty and the cost are greatly reduced, and the development period is shortened.
2. The invention realizes the integrated design of the multi-spectrum common-aperture optical system through the coaxial two-reflection afocal system and the spectroscope, and the coaxial two-reflection afocal system has simple structure and perfect imaging of the central view field, can be independently assembled and adjusted, and reduces the assembling and adjusting difficulty.
3. The four channels share the quick reflection mirror to realize stable visual axis, and the sensor visual axis is rocked caused by external disturbance through swaying correction, so that the stability of the visual axis is maintained;
4. the medium-wave infrared channel and the long-wave infrared channel of the invention adopt a secondary imaging structure, the visible light channel and the laser receiving channel adopt a primary imaging structure, the optical path is greatly simplified, the number of lenses of each channel is small, and the system transmittance is high;
the invention integrates the detection advantages of laser, visible light, medium-wave infrared and long-wave infrared spectrum bands, can provide functions of optical searching and reconnaissance, target identification and tracking, target indication and positioning and the like for a fighter plane, and realizes all-weather and all-day information acquisition.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings needed in the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-band common aperture integrated optical system for photoelectric loading according to the present invention;
FIG. 2 is a schematic view of an optical path of a long-wave infrared channel optical system according to an embodiment of the present invention;
FIG. 3 is a schematic view of an optical path of a medium-wave infrared channel optical system according to an embodiment of the present invention;
FIG. 4 is a schematic view of an optical path of a visible light channel optical system according to an embodiment of the present invention;
fig. 5 is a schematic view of an optical path of an optical system of a laser receiving channel according to an embodiment of the present invention.
Wherein 1 represents a primary mirror, 2 represents a secondary mirror, 3 represents a fast mirror, 4 represents a spectroscope, 5 represents a folding axis mirror, 6 represents a medium wave-long wave first common lens, 7 represents a medium wave-long wave second common lens, 8 represents a medium wave-long wave third common lens, 9 represents a medium wave-long wave fourth common lens, 10 represents a medium wave spectroscope, 11 represents a long wave first reflecting mirror, 12 represents a long wave first lens, 13 represents a long wave second lens, 14 represents a long wave second reflecting mirror, 15 represents a long wave third lens, 16 represents a long wave fourth lens, 17 represents a long wave detector, 18 represents a medium wave first reflecting mirror, 19 represents a medium wave first lens, 20 represents a medium wave second reflecting mirror, 21 represents a medium wave second common lens, 22 represents a medium wave third lens, 23 represents a medium wave detector, 24 represents a visible light-laser first common lens, 25 represents a visible light-laser second common lens, 26 represents a visible light-third common lens, 27 represents a fourth common lens, 28 represents a visible light-laser light detector, 35 represents a visible light mirror, 35 represents a visible light sensor, 35 represents a first common lens, 35 represents a visible light filter, and 35 represents a light.
Detailed Description
In the following description, specific implementation details (such as optical path structure, operation flow, optical path reflection principle and example parameters) of the "a multi-band common aperture integrated optical load system" are provided herein for illustrative purposes and not for limiting purposes, so as to help a person skilled in the art to thoroughly understand the principles and implementations of the present invention, however, it should be clear to those skilled in the art that these details only represent one of possible implementations, and the core concept of the present invention may be implemented completely by other technical means or variants that are not described in detail without departing from the spirit thereof, and the descriptions of conventional experimental methods and apparatus details known in the art are omitted in this specification to avoid the redundant information interfering with the understanding of the innovative points, which does not mean that these known techniques are not required for implementation, and that the person should be able to self-supplement the application based on the expert knowledge.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. The following embodiments will assist those skilled in the art in further understanding the invention, but do not limit the invention in any way. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the invention.
The first embodiment provides a multi-spectrum common-aperture integrated photoelectric load optical system, which comprises a reflection and light splitting system, a medium-wavelength shared lens assembly, a long-wavelength infrared channel, a medium-wavelength infrared channel, a visible light-laser shared lens assembly, a visible light channel and a laser receiving channel;
the medium-wavelength shared lens component is used as a shared component of a long-wavelength infrared channel and a medium-wavelength infrared channel;
the visible light-laser shared lens component is used as a shared component of a visible light channel and a laser receiving channel;
the reflection beam-splitting system, the medium-wavelength shared lens component and the long-wavelength infrared channel form a long-wavelength infrared optical system;
the reflection beam-splitting system, the medium wave-wavelength shared lens component and the medium wave infrared channel form a medium wave infrared optical system;
The reflection light splitting system, the visible light-laser sharing lens assembly and the visible light channel form a visible light optical system;
the reflection beam splitting system, the visible light-laser shared lens assembly and the laser receiving channel form a laser receiving optical system;
The reflection light splitting system is used for reflecting light rays of a target scene for multiple times and dividing the light rays into a medium wave-long wave spectrum band and a visible light-laser spectrum band;
The medium-wavelength shared lens component is used for respectively guiding the medium-wavelength spectrum into the medium-wavelength infrared channel and the long-wavelength infrared channel;
the visible light-laser shared lens component is used for guiding the visible light-laser spectrum into the visible light channel and the laser receiving channel respectively.
The multi-spectrum common-aperture integrated photoelectric load optical system disclosed by the embodiment greatly simplifies the optical path by integrating and sharing components, greatly compresses the volume of the optical system, can independently complete imaging of the imaging systems of the channels, can independently assemble and tune the channels, evaluates the imaging performance of the channels, and finally performs integral splicing, thereby greatly reducing the assembling and tuning difficulty and cost and shortening the development period.
A second embodiment is described with reference to fig. 1, and the present embodiment is further defined by a multi-band common-aperture integrated optical load system according to the first embodiment, where the reflection spectroscopic system is further defined by the present embodiment, and specifically includes:
As shown in fig. 1, the reflection and light splitting system comprises a main reflector 1, a secondary reflector 2, a quick reflector 3, a spectroscope 4 and a folding axicon 5;
The light of the target scene is incident to the main reflector 1, the secondary reflector 2 is arranged on the reflecting light path of the main reflector 1, the quick reflector 3 is arranged on the reflecting light path of the secondary reflector 2, the spectroscope 4 is arranged on the reflecting light path of the quick reflector 3 and is used for dividing the light into a middle wave-long wave spectrum and a visible light-laser spectrum, the spectroscope 4 is also used for respectively guiding the visible light-laser spectrum into a visible light channel and a laser channel through the visible light-laser shared lens component, and the folding axis mirror 5 is arranged on the reflecting light path of the spectroscope 4 and is used for respectively guiding the middle wave-long wave spectrum into the middle wave infrared channel and the long wave infrared channel through the middle wave-long wave shared lens component.
Further, in practical application, the main mirror 1, the secondary mirror 2 and the quick-reflecting mirror 3 are further limited, and specifically include:
The main reflector 1, the secondary reflector 2 and the quick reflector 3 are designed into a coaxial two-reflection afocal system together and are used for receiving light and compressing the caliber of a light beam, the central view field is perfect to image, and the coaxial two-reflection afocal system can be independently assembled and adjusted, so that the assembling and adjusting difficulty is reduced.
Further, in practical application, the quick reflection mirror 3 is further limited, and specifically includes:
the quick reflection mirror 3 is placed at an angle of 45 degrees to the optical axis, and the four channels share the quick reflection mirror 3 and are used for compensating visual axis shake caused by external disturbance.
Further, in practical application, the splitter 4 is further defined, and specifically includes:
the spectroscope 4 is placed at an angle of 45 degrees to the optical axis, and the spectroscope 4 is used for transmitting visible light and laser spectrum and reflecting medium-wave infrared and long-wave infrared spectrum.
Further, in practical application, the primary reflector 1 and the secondary reflector 2 are further limited, and specifically include that the primary reflector 1 is parabolic and the secondary reflector 2 is parabolic.
In this embodiment, the materials of the primary mirror 1 and the secondary mirror 2 may be microcrystalline glass.
It can be seen that, according to the multi-spectrum and common-aperture integrated photoelectric load optical system provided by the embodiment, the coaxial two-reflection afocal system (the main reflector 1, the secondary reflector 2 and the quick reflector 3) and the spectroscope 4 are used for realizing the common-aperture integrated design of the laser spectrum, the visible spectrum, the medium-wave infrared spectrum and the long-wave infrared spectrum, so that the all-weather and all-day information acquisition capability of the photoelectric load is effectively improved, and the volume of the optical system is reduced.
It can be seen that the long-wave infrared channel and the medium-wave infrared channel in this embodiment share the main reflector 1, the secondary reflector 2, the quick reflector 3, the spectroscope 4 and the folding axicon 5, the visible light channel and the laser receiving channel share the main reflector 1, the secondary reflector 2, the quick reflector 3 and the spectroscope 4, and the four channels do not share the transmission lens group, so that chromatic aberration and aberration can be corrected in each wave band, and transmittance can be effectively improved.
It can be seen that the four channels of the four-channel shared fast reflection mirror 3 in this embodiment can correct the shake of the visual axis of the sensor caused by external disturbance, and keep the stability of the visual axis.
It can be seen that the present embodiment can transmit the visible light and the laser spectrum band, and the mid-wave infrared and the long-wave infrared spectrum band through the spectroscope 4, so that the four spectrum bands respectively enter the long-wave infrared channel, the mid-wave infrared channel, the visible light channel and the laser receiving channel.
It can also be seen that the present embodiment adopts a coaxial two-reflection afocal optical configuration, and the light of the target scene is split after passing through the coaxial two-reflection afocal system and the spectroscope, and then enters the medium-wave infrared channel, the long-wave infrared channel, the visible light channel and the laser receiving channel respectively. The four channels are integrated together in a mode of sharing the front group coaxial two-reflection afocal system and the spectroscope, so that the optical path is greatly simplified, the volume of the optical system is greatly reduced, the front group coaxial two-reflection afocal system and the imaging system of each channel can be independently used for perfect imaging, each channel can be independently assembled and adjusted, the imaging performance of each channel is evaluated, and finally, the integral splicing is carried out, so that the assembling difficulty and the cost are greatly reduced, and the development period is shortened.
A third embodiment is described with reference to fig. 2, and the present embodiment is further defined by a multi-band common aperture integrated optical load system according to any one of the above embodiments, where the long-wavelength infrared channel and the mid-wavelength shared lens assembly are further defined, and specifically includes:
As shown in fig. 2, the long-wave infrared channel includes a medium-long-wave common lens assembly, a long-wave first reflecting mirror 11, a long-wave first lens 12, a long-wave second lens 13, a long-wave second reflecting mirror 14, a long-wave third lens 15, a long-wave fourth lens 16 and a long-wave detector 17, which are sequentially arranged along the light path direction;
As shown in fig. 2, the mid-wavelength shared lens assembly includes a first mid-wavelength shared lens 6, a second mid-wavelength shared lens 7, a third mid-wavelength shared lens 8, a fourth mid-wavelength shared lens 9, and a long-mid beam splitter 10, which are sequentially arranged along the light path;
The long-wave infrared spectrum band is refracted through the intermediate-wave-long-wave first common lens 6, the intermediate-wave-long-wave second common lens 7, the intermediate-wave-long-wave third common lens 8, the intermediate-wave-long-wave fourth common lens 9, the intermediate-wave spectroscope 10, the long-wave first reflecting mirror 11, the long-wave first lens 12, the long-wave second lens 13, the long-wave second reflecting mirror 14, the long-wave third lens 15, the long-wave fourth lens 16 and finally enters the long-wave detector 17 for long-wave infrared channel imaging.
Further, in practical application, the long-wave infrared channel is further defined, which specifically includes:
The long-wave infrared channel adopts a secondary imaging structure, the entrance pupil is controlled at the position of the exit pupil of the coaxial two-reflection afocal system, and the position of the exit pupil is matched with the cold diaphragm of the long-wave detector 17, so that 100% cold diaphragm efficiency is realized.
In the embodiment, the medium-wavelength and long-wavelength shared lens material can be made of germanium material, zinc selenide material and zinc sulfide, and the long-wavelength channel lens material can be made of germanium material, zinc selenide material and IRG206 material, so that the processing technology difficulty is reduced, and the production and manufacturing cost is saved.
A fourth embodiment is described with reference to fig. 3, and the present embodiment is further defined by a multispectral common-aperture integrated optical load system according to any one of the above embodiments, where the medium-wave infrared channel is further defined by the present embodiment, and specifically includes:
as shown in fig. 3, the mid-wave infrared channel includes a mid-wave-wavelength common lens assembly, a mid-wave first mirror 18, a mid-wave first lens 19, a mid-wave second mirror 20, a mid-wave second lens 21, a mid-wave third lens 22, and a mid-wave detector 23, which are sequentially arranged along the light path;
The mid-wave infrared spectrum band is refracted through the mid-wave-wavelength first common lens 6, the mid-wave-wavelength second common lens 7, the mid-wave-wavelength third common lens 8, the mid-wave-wavelength fourth common lens 9, the mid-wavelength spectroscope 10, the mid-wave first reflector 18, the mid-wave first lens 19, the mid-wave second reflector 20, the mid-wave second lens 21, the mid-wave third lens 22 and finally enters the mid-wave detector 23 for mid-wave infrared channel imaging.
Further, in practical application, the medium wave infrared channel is further defined, which specifically includes:
The intermediate wave infrared channel adopts a secondary imaging structure, the entrance pupil is controlled to be arranged at the position of the exit pupil of the coaxial two-reflection afocal system, and the position of the exit pupil is matched with the cold diaphragm of the intermediate wave detector 23, so that 100% cold diaphragm efficiency is realized.
In the embodiment, the medium-wavelength shared lens material can be made of germanium material, zinc selenide material and zinc sulfide, and the medium-wavelength channel lens material can be made of silicon material and germanium material, so that the processing technology difficulty is reduced, and the production and manufacturing cost is saved.
A fourth embodiment is described with reference to fig. 4, and the present embodiment is further defined by a multi-band common aperture integrated optical load system according to any one of the above embodiments, where the visible light channel and the visible light-laser common lens assembly are further defined, and specifically includes:
As shown in fig. 4, the visible light channel includes a visible light-laser shared lens assembly, a visible light first lens 30, a visible light filter 31, a visible light reflector 32 and a visible light detector 33, which are sequentially arranged along the direction of the light path;
As shown in fig. 4, the visible light-laser shared lens assembly includes a visible light-laser first shared lens 24, a visible light-laser second shared lens 25, a visible light-laser third shared lens 26, a visible light-laser fourth shared lens 27, a visible light-laser fifth shared lens 28, and a visible light-laser spectroscope 29, which are disposed in order along the light path;
The visible spectrum segment is refracted by the first common lens 24, the second common lens 25, the third common lens 26, the fourth common lens 27, the fifth common lens 28, the beam splitter 29, the first lens 30, the filter 31, the mirror 32 and finally incident to the light detector 33 for imaging the visible light channel.
Further, in practical application, the visible light channel is further defined, which specifically includes:
The visible light channel adopts a primary imaging structure, the lens material can be made of flint glass and crown glass, the number of lenses is small, and the transmittance of the system is high.
A fifth embodiment is further defined by describing the present embodiment with reference to fig. 5, where the present embodiment is a multispectral common-aperture integrated optical load system according to any one of the above embodiments, and the present embodiment further defines the laser receiving channel, and specifically includes:
As shown in fig. 5, the laser receiving channel includes a visible light-laser shared lens assembly, a laser first lens 34, a laser filter 35 and a laser receiving sensor 36, which are sequentially arranged along the light path;
The laser spectrum is refracted by the first common lens 24, the second common lens 25, the third common lens 26, the fourth common lens 27, the fifth common lens 28, the beam splitter 29, the first lens 34, the filter 35 and finally enters the laser receiving sensor 36 for receiving the echo signal of the laser receiving channel.
Further, in practical application, the laser receiving channel is further defined, and specifically includes:
the laser receiving channel adopts a primary imaging structure, the lens material can be made of flint glass and crown glass, the number of lenses is small, and the transmittance of the system is high.
In a sixth embodiment, referring to fig. 1 to 5, the present embodiment is described with reference to the present embodiment, and a multi-band common aperture integrated optical load system according to the foregoing embodiment, where the present embodiment provides a specific multi-band common aperture integrated optical load system, and the multi-band common aperture integrated optical load system includes a main mirror 1, a secondary mirror 2, a fast mirror 3, a beam splitter 4, a beam splitter 5, a long-wave infrared channel, a medium-wave infrared channel, a visible light channel, and a laser receiving channel, where light of a target scene is incident on the main mirror 1, a secondary mirror 2 is disposed on a reflection light path of the main mirror 1, a fast mirror 3 is disposed on a reflection light path of the secondary mirror 2, a beam splitter 4 is disposed on a reflection light path of the fast mirror 3, and the beam splitter 4 is disposed on a reflection light path of the beam splitter 4 and is used for guiding the medium-wavelength band into the medium-wave infrared channel and the long-wave infrared channel, and the visible light-band visible light-beam splitter 4 is transmitted into the visible light channel and the laser channel, respectively;
The long-wave infrared channel comprises a medium-long-wave first shared lens 6, a medium-long-wave second shared lens 7, a medium-long-wave third shared lens 8, a medium-long-wave fourth shared lens 9, a medium-long-wave spectroscope 10, a long-wave first reflecting mirror 11, a long-wave first lens 12, a long-wave second lens 13, a long-wave second reflecting mirror 14, a long-wave third lens 15, a long-wave fourth lens 16 and a long-wave detector 17 which are sequentially arranged along the direction of a light path, the long-wave infrared spectrum is sequentially refracted by the medium-long-wave first shared lens 6, refracted by the medium-wave second shared lens 7, refracted by the medium-long-wave third shared lens 8, refracted by the medium-long-wave fourth shared lens 9, reflected by the medium-long-wave spectroscope 10, reflected by the long-wave first reflecting mirror 11, refracted by the long-wave first lens 12, refracted by the long-wave second lens 13, reflected by the long-wave second reflecting mirror 14, refracted by the long-wave third lens 15, refracted by the long-wave fourth lens 16 and finally refracted by the long-wave detector 17;
The mid-wave infrared channel comprises a mid-wave-wavelength first common lens 6, a mid-wave-wavelength second common lens 7, a mid-wave-wavelength third common lens 8, a mid-wave-wavelength fourth common lens 9, a mid-wave beam splitter 10, a mid-wave first reflecting mirror 18, a mid-wave first lens 19, a mid-wave second reflecting mirror 20, a mid-wave second lens 21, a mid-wave third lens 22 and a mid-wave detector 23 which are sequentially arranged along the direction of the light path, wherein the mid-wave infrared spectrum sequentially passes through the refraction of the mid-wave-wavelength first common lens 6, the refraction of the mid-wave-wavelength second common lens 7, the refraction of the mid-wave-wavelength third common lens 8, the refraction of the mid-wavelength fourth common lens 9, the refraction of the mid-wavelength beam splitter 10, the reflection of the mid-wave first reflecting mirror 18, the refraction of the mid-wave first lens 19, the reflection of the mid-wave second reflecting mirror 20, the refraction of the mid-wave second lens 21, the refraction of the mid-wave third lens 22 and the refraction of the mid-wave detector 23 for final incidence of the mid-wave infrared channel;
The visible light channel comprises a visible light-laser first shared lens 24, a visible light-laser second shared lens 25, a visible light-laser third shared lens 26, a visible light-laser fourth shared lens 27, a visible light-laser fifth shared lens 28, a visible light-laser spectroscope 29, a visible light first lens 30, a visible light filter 31, a visible light reflecting mirror 32 and a visible light detector 33 which are sequentially arranged along the direction of the light path, and the visible light spectrum section is sequentially refracted by the visible light-laser first shared lens 24, the visible light-laser second shared lens 25, the visible light-laser third shared lens 26, the visible light-laser fourth shared lens 27, the visible light-laser fifth shared lens 28, the visible light-laser spectroscope 29, the visible light first lens 30, the visible light filter 31, the visible light reflecting mirror 32 and finally enters the visible light detector 33 for imaging the visible light channel;
The laser receiving channel comprises a visible light-laser first shared lens 24, a visible light-laser second shared lens 25, a visible light-laser third shared lens 26, a visible light-laser fourth shared lens 27, a visible light-laser fifth shared lens 28, a visible light-laser spectroscope 29, a laser first lens 34, a laser filter 35 and a laser receiving sensor 36 which are sequentially arranged along the direction of the light path, and the laser spectrum is sequentially refracted through the visible light-laser first shared lens 24, the visible light-laser second shared lens 25, the visible light-laser third shared lens 26, the visible light-laser fourth shared lens 27, the visible light-laser fifth shared lens 28, the visible light-laser spectroscope 29, the laser first lens 34, the laser filter 35 and finally enters the laser receiving sensor 36 for receiving the echo signals of the laser receiving channel.
As shown in fig. 1, the long-wave infrared channel and the medium-wave infrared channel share a main reflector 1, a secondary reflector 2, a quick reflector 3, a spectroscope 4 and a folding axicon 5, the long-wave infrared channel optical system and the medium-wave infrared channel optical system are respectively shown in fig. 2 and 3, the visible light channel and the laser receiving channel share the main reflector 1, the secondary reflector 2, the quick reflector 3 and the spectroscope 4, and the visible light channel optical system and the laser receiving channel optical system are respectively shown in fig. 4 and 5;
further, the long-wave infrared channel and the medium-wave infrared channel share the main reflector 1, the secondary reflector 2, the quick reflector 3, the spectroscope 4 and the folding axicon 5, the visible light channel and the laser receiving channel share the main reflector 1, the secondary reflector 2, the quick reflector 3 and the spectroscope 4, and the four channels do not share the transmission lens group, so that chromatic aberration and aberration can be corrected conveniently for each wave band, and the transmittance is effectively improved;
The main reflector 1, the secondary reflector 2 and the quick reflector 3 are designed into a coaxial two-reflection afocal system, and are used for receiving light and compressing the caliber of the light beam, the central view field is perfect for imaging, and the primary reflector, the secondary reflector and the quick reflector can be independently adjusted, so that the adjustment difficulty is reduced;
the substrate materials of the primary reflector 1 and the secondary reflector 2 can be microcrystalline glass or silicon carbide, the surface type of the primary reflector 1 is a paraboloid, and the surface type of the secondary reflector 2 is a paraboloid;
the quick reflection mirror 3 is placed at an angle of 45 degrees to the optical axis, the four channels share the quick reflection mirror 3, and the visual axis of the sensor shakes caused by external disturbance through swaying correction, so that the stability of the visual axis is maintained;
The spectroscope 4 is obliquely arranged at 45 degrees with the optical axis, the spectroscope 4 transmits visible light and laser spectrum, reflects middle-wave infrared and long-wave infrared spectrum, and enters a middle-wave infrared channel, a long-wave infrared channel, a visible light channel and a laser receiving channel respectively;
the substrate material of the spectroscope 4 is selected to be a material transmitting visible light and laser spectrum, and the front surface and the rear surface are respectively plated with a spectroscope film and an antireflection film;
The folding axicon 5 is placed at an angle of 45 degrees to the optical axis, and the folding axicon 5 is shared by the medium-wave infrared channel and the long-wave infrared channel to realize folding of the optical path;
the substrate material of the folding axicon 5 can be quartz or H-K9L, and the surface is plated with a reflecting film;
the long-wave infrared channel adopts a secondary imaging structure, the entrance pupil is controlled to be arranged at the position of the exit pupil of the coaxial two-reflection afocal system, and the position of the exit pupil is matched with the cold diaphragm of the long-wave detector 17 so as to realize 100% cold diaphragm efficiency;
the medium wave infrared channel adopts a secondary imaging structure, the entrance pupil is controlled to be arranged at the position of the exit pupil of the coaxial two-reflection afocal system, and the position of the exit pupil is matched with the cold diaphragm of the medium wave detector 23 to realize 100% cold diaphragm efficiency;
The visible light channel adopts a primary imaging structure, adopts reasonable collocation of a high-refractive-index and low-dispersion optical element and a low-refractive-index and high-dispersion optical element, solves the chromatic aberration and the correction of a secondary spectrum of an optical system, and has the advantages of less number of lenses and high system transmittance;
The laser receiving channel adopts a one-time imaging structure, the number of used lenses is small, and the system transmittance is high.
In summary, the multi-spectral band common-aperture integrated photoelectric load optical system provided in this embodiment adopts a coaxial two-reflection afocal optical configuration, and light rays of a target scene are split by the coaxial two-reflection afocal system and the spectroscope and enter the medium-wave infrared channel, the long-wave infrared channel, the visible light channel and the laser receiving channel respectively. The four channels are integrated together in a mode of sharing the front group coaxial two-reflection afocal system and the spectroscope, so that the optical path is greatly simplified, the volume of the optical system is greatly reduced, the front group coaxial two-reflection afocal system and the imaging system of each channel can be independently used for perfect imaging, each channel can be independently assembled and adjusted, the imaging performance of each channel is evaluated, and finally, the integral splicing is carried out, so that the assembling difficulty and the cost are greatly reduced, and the development period is shortened.
Furthermore, the integrated design of the multi-spectral-band common-aperture optical system is realized through the coaxial two-reflection afocal system and the spectroscope, the coaxial two-reflection afocal system has a simple structure, the central view field is perfect for imaging, and the coaxial two-reflection afocal system can be independently assembled and adjusted, so that the assembling and adjusting difficulty is reduced.
Further, the four channels share the quick reflection mirror to realize stable visual axis, and the visual axis of the sensor shakes caused by external disturbance through swaying correction, so that the stability of the visual axis is maintained;
Further, the medium-wave infrared channel and the long-wave infrared channel both adopt a secondary imaging structure, the visible light channel and the laser receiving channel both adopt a primary imaging structure, the light path is greatly simplified, the number of lenses of each channel is small, and the system transmittance is high;
It can be seen that the multi-spectrum common-aperture integrated photoelectric load optical system in the embodiment integrates the advantages of laser, visible light, medium-wave infrared and long-wave infrared spectrum detection, can provide functions of optical searching and reconnaissance, target identification and tracking, target indication and positioning and the like for a fighter plane, and achieves all-weather and all-day information acquisition.
The seventh embodiment specifically describes the multi-spectrum common-aperture integrated photoelectric load optical system described in the above embodiment by combining specific parameters;
The multi-spectral band common aperture integrated photoelectric load optical system is applicable to a refrigeration type long-wave infrared detector with the resolution of 640 multiplied by 512, the pixel spacing of 25 mu m multiplied by 25 mu m and the F2 of a cold screen, a middle-wave infrared optical system with the focal length of 720mm, the resolution of 1280 multiplied by 1024, the pixel spacing of 12 mu m multiplied by 12 mu m and the F4 of the cold screen, a visible light optical system with the focal length of 1080mm, the resolution of 5120 multiplied by 4096, the pixel spacing of 4.5 mu m multiplied by 4.5 mu m and the visual angle of 2mrad of a laser receiving optical system;
in the embodiment, the main reflector 1, the secondary reflector 2 and the quick reflector 3 are designed into a coaxial two-reflection afocal system, and are used for receiving light and compressing the caliber of a light beam, the central view field is perfect for imaging, and the primary reflector, the secondary reflector and the quick reflector can be independently adjusted, so that the adjustment difficulty is reduced;
in the embodiment, the surface type of the preferable main reflector 1 is a paraboloid, the material is microcrystalline glass, the surface type of the preferable secondary reflector 2 is a paraboloid, and the material is microcrystalline glass;
in this embodiment, the preferable fast reflecting mirror 3 is disposed inclined 45 ° to the optical axis, and the four channels share the fast reflecting mirror 3 for compensating the visual axis shake caused by external disturbance.
In the embodiment, the spectroscope 4 is preferably placed at an angle of 45 degrees to the optical axis, the material is H-K9L, the thickness is 10mm, the front surface and the rear surface are respectively plated with a spectroscope film and an antireflection film, the transmission is 0.6-0.9 mu m and 1.064 mu m, and the reflection is 3.7-4.8 mu m and 7.7-9.5 mu m;
in the embodiment, the optimized medium-long wave spectroscope 10 is placed at an inclination angle of 45 degrees with the optical axis, silicon is adopted as a material, the thickness is 10mm, a light-splitting film and an antireflection film are respectively plated on the front surface and the rear surface, the transmission is 3.7-4.8 mu m, and the reflection is 7.7-9.5 mu m;
in the embodiment, the preferable visible light-laser spectroscope 29 is placed at an angle of 45 degrees with the optical axis, the material is H-K9L, the thickness is 10mm, the front surface and the rear surface are respectively plated with a spectroscope and an antireflection film, the transmission is 1.064 mu m, and the reflection is 0.6 mu m-0.9 mu m;
In the embodiment, the preferable folding axicon 5 is placed at an inclination angle of 45 degrees with the optical axis, H-K9L is adopted as the material, and a high reflection film with a thickness of 3.7-4.8 mu m and a thickness of 7.7-9.5 mu m is plated;
In the embodiment, the preferable long-wave first reflecting mirror 11 and the preferable long-wave second reflecting mirror 14 are both inclined 45 degrees with the optical axis, H-K9L is adopted as the material, and a high reflecting film of 7.7-9.5 mu m is plated;
In the embodiment, the preferred medium wave first reflecting mirror 18 and the medium wave second reflecting mirror 20 are both inclined 45 degrees with the optical axis, H-K9L is adopted as the material, and a high reflecting film of 3.7-4.8 mu m is plated;
in the embodiment, the preferable visible light reflector 32 is placed at an inclination angle of 45 degrees with the optical axis, H-K9L is adopted as the material, and 0.6-0.9 mu m high reflection film is plated;
the preferred intermediate-wavelength first common lens 6, intermediate-wavelength second common lens 7, intermediate-wavelength third common lens 8 and intermediate-wavelength fourth common lens 9 in this embodiment are made of germanium material, zinc selenide material and zinc sulfide material;
the long-wave first lens 12, the long-wave second lens 13, the long-wave third lens 15 and the long-wave fourth lens 16 which are preferable in the present embodiment are made of germanium material, zinc selenide material and IRG206 material;
The intermediate wave first lens 19, the intermediate wave second lens 21, and the intermediate wave third lens 22, which are preferable in the present embodiment, are each made of a silicon material and a germanium material;
in the present embodiment, the visible light-laser first common lens 24, the visible light-laser second common lens 25, the visible light-laser third common lens 26, the visible light-laser fourth common lens 27, the visible light-laser fifth common lens 28, the visible light first lens 30, and the laser first lens 34 are preferably made of flint glass and crown glass.
In the present embodiment, specific parameter data of each lens in the long-wave infrared optical system is shown in table 1;
TABLE 1
In the present embodiment, the aspherical coefficients used in the long-wave infrared optical system are shown in table 2;
TABLE 2
The aspherical surfaces mentioned in the above lenses are even aspherical surfaces, and the expression thereof is as follows:
In the formula, Is aspheric and has a height in the direction of the optical axisAt the time of the position of (c), the distance vector from the apex of the aspheric surface is high,In the form of a radius of curvature,Is a coefficient of a cone which is a coefficient of a cone,、、Is an aspherical coefficient.
In this embodiment, specific parameter data of each lens in the mid-wave infrared optical system is shown in table 3;
TABLE 3 Table 3
In the present embodiment, the aspherical coefficients used in the mid-wave infrared optical system are shown in table 4:
TABLE 4 Table 4
The aspherical surfaces mentioned in the above lenses are even aspherical surfaces, and the expression thereof is as follows:
In the middle of Is aspheric and has a height in the direction of the optical axisAt the time of the position of (c), the distance vector from the apex of the aspheric surface is high,In the form of a radius of curvature,Is a coefficient of a cone which is a coefficient of a cone,、、Is an aspherical coefficient;
in the present embodiment, specific parameter data of each lens in the visible light optical system is shown in table 5;
TABLE 5
In the present embodiment, the specific parameter data of each lens in the laser receiving optical system is shown in table 6;
TABLE 6
The above description the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In the description above, it should also be understood that the term "comprises/comprising" when used in this specification and the appended claims is taken to specify the presence of stated features, integers, steps, operations, elements, and/or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The technical solution provided by the present invention is described in further detail through several specific embodiments, so as to highlight the advantages and benefits of the technical solution provided by the present invention, however, the above specific embodiments are not intended to be limiting, and any reasonable modification and improvement, reasonable combination of embodiments, equivalent substitution, etc. of the present invention based on the spirit and principle of the present invention should be included in the scope of protection of the present invention.
Claims (9)
1. The multi-spectral band common aperture integrated photoelectric load optical system is characterized by comprising a reflection light splitting system, a medium wave-long wave shared lens assembly, a long wave infrared channel, a medium wave infrared channel, a visible light-laser shared lens assembly, a visible light channel and a laser receiving channel;
the medium-wavelength shared lens component is used as a shared component of a long-wavelength infrared channel and a medium-wavelength infrared channel;
the visible light-laser shared lens component is used as a shared component of a visible light channel and a laser receiving channel;
the reflection beam-splitting system, the medium-wavelength shared lens component and the long-wavelength infrared channel form a long-wavelength infrared optical system;
the reflection beam-splitting system, the medium wave-wavelength shared lens component and the medium wave infrared channel form a medium wave infrared optical system;
The reflection light splitting system, the visible light-laser sharing lens assembly and the visible light channel form a visible light optical system;
the reflection beam splitting system, the visible light-laser shared lens assembly and the laser receiving channel form a laser receiving optical system;
The reflection light splitting system is used for reflecting light rays of a target scene for multiple times and dividing the light rays into a medium wave-long wave spectrum band and a visible light-laser spectrum band;
The medium-wavelength shared lens component is used for respectively guiding the medium-wavelength spectrum into the medium-wavelength infrared channel and the long-wavelength infrared channel;
the visible light-laser shared lens component is used for respectively guiding the visible light-laser spectrum into the visible light channel and the laser receiving channel;
The reflection and light splitting system comprises a main reflecting mirror (1), a secondary reflecting mirror (2), a quick reflecting mirror (3), a spectroscope (4) and a folding axis mirror (5);
The light of the target scene is incident to the main reflector (1), the secondary reflector (2) is arranged on the reflecting light path of the main reflector (1), the quick reflector (3) is arranged on the reflecting light path of the secondary reflector (2), the spectroscope (4) is arranged on the reflecting light path of the quick reflector (3), the spectroscope (4) is used for dividing the light into a middle wave-long wave spectrum and a visible light-laser spectrum, the visible light-laser spectrum is further used for respectively guiding the visible light-laser spectrum into a visible light channel and a laser channel through the visible light-laser shared lens assembly, and the folding shaft mirror (5) is arranged on the reflecting light path of the spectroscope (4) and used for respectively guiding the middle wave-long wave spectrum into the middle wave infrared channel and the long wave infrared channel through the middle wave-long wave shared lens assembly.
2. The multi-spectral band common-aperture integrated photoelectric load optical system according to claim 1 is characterized in that a main reflector (1), a secondary reflector (2) and a quick reflector (3) form a coaxial two-reflection afocal system together, the coaxial two-reflection afocal system is used for receiving light and compressing light beam caliber, the central view field is perfect and imaging, and the coaxial two-reflection afocal system can be independently installed and adjusted.
3. The multi-spectral band common-aperture integrated photoelectric load optical system according to claim 2, wherein the fast reflecting mirror (3) and the spectroscope (4) are both inclined 45 degrees to the optical axis;
The four-channel shared quick reflection mirror (3) is used for compensating visual axis shake caused by external disturbance;
the spectroscope (4) shared by four channels is used for transmitting visible light and laser spectrum and reflecting medium-wave infrared and long-wave infrared spectrum.
4. A multi-band common aperture integrated optoelectric load optical system according to claim 3, characterized in that the long wave infrared channel comprises a medium wave-long wave common lens assembly, a long wave first reflecting mirror (11), a long wave first lens (12), a long wave second lens (13), a long wave second reflecting mirror (14), a long wave third lens (15), a long wave fourth lens (16) and a long wave detector (17) which are arranged in sequence along the light path direction;
The medium wave-long wave shared lens component comprises a medium wave-long wave first shared lens (6), a medium wave-long wave second shared lens (7), a medium wave-long wave third shared lens (8), a medium wave-long wave fourth shared lens (9) and a medium-long wave spectroscope (10) which are sequentially arranged along the direction of a light path;
The long-wave infrared spectrum band sequentially passes through the refraction of a medium-wave and long-wave first common lens (6), the refraction of a medium-wave and long-wave second common lens (7), the refraction of a medium-wave and long-wave third common lens (8), the refraction of a medium-wave and long-wave fourth common lens (9), the refraction of a medium-and long-wave spectroscope (10), the reflection of a long-wave first reflecting mirror (11), the refraction of a long-wave first lens (12), the refraction of a long-wave second lens (13), the reflection of a long-wave second reflecting mirror (14), the refraction of a long-wave third lens (15), the refraction of a long-wave fourth lens (16) and finally the incidence of the long-wave infrared spectrum band to a long-wave detector (17) for long-wave infrared channel imaging.
5. The multi-spectral band common aperture integrated optoelectric load optical system of claim 4, wherein the mid-wave infrared channel comprises a mid-wave-wavelength common lens assembly, a mid-wave first mirror (18), a mid-wave first lens (19), a mid-wave second mirror (20), a mid-wave second lens (21), a mid-wave third lens (22) and a mid-wave detector (23) arranged in order along the path of the light;
The middle wave infrared spectrum band is sequentially refracted through a middle wave-long wave first common lens (6), a middle wave-long wave second common lens (7), a middle wave-long wave third common lens (8), a middle wave-long wave fourth common lens (9), a middle-long wave spectroscope (10), a middle wave first reflecting mirror (18), a middle wave first lens (19), a middle wave second reflecting mirror (20), a middle wave second lens (21), a middle wave third lens (22) and finally enters a middle wave detector (23) for middle wave infrared channel imaging.
6. The multi-spectral band common-aperture integrated photoelectric load optical system according to claim 5, wherein the long-wave infrared channel and the medium-wave infrared channel both adopt secondary imaging structures, the entrance pupil is arranged at the exit pupil position of the coaxial two-reflection afocal system, and the exit pupil position is respectively matched with cold diaphragms of the long-wave detector (17) and the medium-wave detector (23).
7. The multi-spectral band common aperture integrated optoelectric loading optical system of claim 1, wherein the visible light channel comprises a visible light-laser shared lens assembly, a visible light first lens (30), a visible light filter (31), a visible light reflector (32) and a visible light detector (33) which are sequentially arranged along the light path direction;
The visible light-laser shared lens assembly comprises a visible light-laser first shared lens (24), a visible light-laser second shared lens (25), a visible light-laser third shared lens (26), a visible light-laser fourth shared lens (27), a visible light-laser fifth shared lens (28) and a visible light-laser spectroscope (29) which are sequentially arranged along the direction of the light path;
The visible spectrum segment is sequentially refracted through a visible light-laser first common lens (24), a visible light-laser second common lens (25), a visible light-laser third common lens (26), a visible light-laser fourth common lens (27), a visible light-laser fifth common lens (28), a visible light-laser spectroscope (29), a visible light first lens (30), a visible light filter (31), a visible light reflecting mirror (32) and finally enters a visible light detector (33) for visible light channel imaging.
8. The multi-band common aperture integrated optoelectric load optical system of claim 7, wherein the laser receiving channel comprises a visible light-laser common lens assembly, a laser first lens (34), a laser filter (35) and a laser receiving sensor (36) sequentially arranged along the path direction;
The laser spectrum is sequentially refracted through a visible light-laser first common lens (24), a visible light-laser second common lens (25), a visible light-laser third common lens (26), a visible light-laser fourth common lens (27), a visible light-laser fifth common lens (28), a visible light-laser spectroscope (29), a laser first lens (34), a laser filter (35) and finally enters a laser receiving sensor (36) for receiving a laser receiving channel echo signal.
9. The multi-band common-aperture integrated photoelectric loading optical system according to claim 8, wherein the visible light channel and the laser channel both adopt a primary imaging structure.
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