Multispectral common-aperture integrated optical system of photoelectric load

Abstract

A multispectral common-aperture integrated optical system of photoelectric load belongs to the technical field of optical engineering, and solves the problems that the existing system cannot evaluate the imaging performance by channels and the long period of assembly, adjustment and test. The system comprises: a coaxial two-reflection afocal optical configuration, light of a target scene is split after passing through the coaxial two-reflection afocal optical system and a fast mirror, and enters a mid-wave infrared channel, a long-wave infrared channel, a visible light channel and a laser receiving channel respectively. The four channels are integrated together through the coaxial two-reflection afocal system and a beam splitter, which greatly simplifies the optical path, and the coaxial two-reflection afocal system and the imaging system of each channel can independently perfect the imaging, independently assemble and adjust each channel, evaluate the imaging performance of each channel, and finally perform overall splicing, which can greatly reduce the difficulty and cost of assembly and adjustment. The application can provide functions of optical search reconnaissance, target identification tracking and target indication positioning for a warplane, and realize all-weather and all-time information acquisition.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical engineering, and in particular to a multi-spectral common-aperture integrated photoelectric load optical system. BACKGROUND

[0002] The photoelectric load equipped on advanced warplanes is mainly used to provide functions such as optical search reconnaissance, target identification tracking and target indication positioning for warplanes. The information amount obtained by a single waveband optical system is limited, and cannot fully meet the needs of battlefield situation awareness or emergency disaster relief. Compound imaging using the detection advantages of laser, visible light, medium wave infrared and long wave infrared wavebands can improve the detection capability and accuracy of the load, and realize all-weather and all-time information acquisition. Therefore, multi-spectral integrated imaging has become the focus of photoelectric load research.

[0003] The multi-spectral optical system adopts a common-aperture mode, which can effectively improve the action distance and compress the system volume. The existing multi-spectral common-aperture integrated optical system usually adopts an overall design idea in the design, that is, the common optical system and the relay system of each waveband meet the design requirements as a whole. In this design, the common optical system and the relay system of each waveband cannot independently achieve perfect imaging effect, therefore, the imaging performance evaluation of the optical system can only be carried out after the overall adjustment and testing. When the number of optical elements in the multi-spectral integrated optical system is large, especially when the number of coaxial mirrors or off-axis mirrors increases, the overall adjustment and testing work will face great challenges, which will not only prolong the development cycle of the optical system, but also increase the development cost. SUMMARY

[0004] In order to solve the problems in the background art, the present application provides a multi-spectral common-aperture integrated photoelectric load optical system, which integrates laser, visible light, medium wave infrared and long wave infrared wavebands through a common front coaxial two-mirror afocal system and a beamsplitter, greatly simplifying the optical path; and the front coaxial two-mirror afocal system and the imaging system of each channel can independently image, and each channel can be independently adjusted and tested, and finally the whole is spliced, reducing the adjustment and testing difficulty.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] The present application provides a multi-spectral common-aperture integrated photoelectric load optical system, which comprises a reflective beamsplitting system, a medium-long wave common lens assembly, a long wave infrared channel, a medium wave infrared channel, a visible-laser common lens assembly, a visible light channel and a laser receiving channel.

[0007] The medium-long wave common lens assembly is a common assembly of the long wave infrared channel and the medium wave infrared channel.

[0008] The visible light-laser shared lens assembly is used as a shared assembly of a visible light channel and a laser receiving channel.

[0009] The reflective light splitting system, the middle wave-long wave shared lens assembly and the long wave infrared channel constitute a long wave infrared optical system.

[0010] The reflective light splitting system, the middle wave-long wave shared lens assembly and the middle wave infrared channel constitute a middle wave infrared optical system.

[0011] The reflective light splitting system, the visible light-laser shared lens assembly and the visible light channel constitute a visible light optical system.

[0012] The reflective light splitting system, the visible light-laser shared lens assembly and the laser receiving channel constitute a laser receiving optical system.

[0013] The reflective light splitting system is used for reflecting light of a target scene multiple times and splitting the light into a middle wave-long wave spectrum and a visible light-laser spectrum.

[0014] The middle wave-long wave shared lens assembly is used for guiding the middle wave-long wave spectrum into a middle wave infrared channel and a long wave infrared channel respectively.

[0015] The visible light-laser shared lens assembly is used for guiding the visible light-laser spectrum into a visible light channel and a laser receiving channel respectively.

[0016] Further, the reflective light splitting system comprises a primary mirror, a secondary mirror, a fast mirror, a light splitting mirror and a folded mirror.

[0017] Light of a target scene is incident on the primary mirror, the secondary mirror is arranged on a reflection light path of the primary mirror, the fast mirror is arranged on a reflection light path of the secondary mirror, the light splitting mirror is arranged on a reflection light path of the fast mirror, the light splitting mirror is used for splitting the light into a middle wave-long wave spectrum and a visible light-laser spectrum, and is further used for guiding the visible light-laser spectrum into a visible light channel and a laser channel respectively through a visible light-laser shared lens assembly, the folded mirror is arranged on a reflection light path of the light splitting mirror and is used for guiding the middle wave-long wave spectrum into a middle wave infrared channel and a long wave infrared channel respectively through a middle wave-long wave shared lens assembly.

[0018] Further, the primary mirror, the secondary mirror and the fast mirror jointly constitute a coaxial two-mirror afocal system, which is used for light collection and compression of a beam aperture and perfects central field of view imaging; and the coaxial two-mirror afocal system can be independently adjusted and installed.

[0019] Further, the fast mirror and the light splitting mirror are both arranged at an inclination of 45° to an optical axis.

[0020] The fast mirror shared by the four channels is used for compensating for a visual axis shaking caused by external disturbance.

[0021] The four-channel shared beamsplitter is used for transmitting visible light and laser spectrum and reflecting middle wave infrared and long wave infrared spectrum.

[0022] Further, the long wave infrared channel includes, in sequence along an optical path, a middle wave-long wave shared lens assembly, a long wave first mirror, a long wave first lens, a long wave second lens, a long wave second mirror, a long wave third lens, a long wave fourth lens, and a long wave detector.

[0023] The middle wave-long wave shared lens assembly includes, in sequence along an optical path, a middle wave-long wave first shared lens, a middle wave-long wave second shared lens, a middle wave-long wave third shared lens, a middle wave-long wave fourth shared lens, and a middle-long wave beamsplitter.

[0024] The long wave infrared spectrum sequentially passes through middle wave-long wave first shared lens refraction, middle wave-long wave second shared lens refraction, middle wave-long wave third shared lens refraction, middle wave-long wave fourth shared lens refraction, middle-long wave beamsplitter reflection, long wave first mirror reflection, long wave first lens refraction, long wave second lens refraction, long wave second mirror reflection, long wave third lens refraction, long wave fourth lens refraction, and finally enters the long wave detector for long wave infrared channel imaging.

[0025] Further, the middle wave infrared channel includes, in sequence along an optical path, a middle wave-long wave shared lens assembly, a middle wave first mirror, a middle wave first lens, a middle wave second mirror, a middle wave second lens, a middle wave third lens, and a middle wave detector.

[0026] The middle wave infrared spectrum sequentially passes through middle wave-long wave first shared lens refraction, middle wave-long wave second shared lens refraction, middle wave-long wave third shared lens refraction, middle wave-long wave fourth shared lens refraction, middle-long wave beamsplitter reflection, middle wave first mirror reflection, middle wave first lens refraction, middle wave second mirror reflection, middle wave second lens refraction, middle wave third lens refraction, and finally enters the middle wave detector for middle wave infrared channel imaging.

[0027] Further, the long wave infrared channel and the middle wave infrared channel both adopt a two-time imaging structure, both set an entrance pupil at an exit pupil position of a coaxial two-mirror afocal system, and the exit pupil positions are matched with a cold light stop of the long wave detector and the middle wave detector, respectively.

[0028] Further, the visible light channel includes, in sequence along an optical path, a visible light-laser shared lens assembly, a visible light first lens, a visible light filter, a visible light mirror, and a visible light detector.

[0029] The visible light-laser shared lens assembly comprises, in sequence along an optical path, 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 beamsplitter.

[0030] The visible spectrum sequentially passes through the visible light-laser first shared lens, the visible light-laser second shared lens, the visible light-laser third shared lens, the visible light-laser fourth shared lens, the visible light-laser fifth shared lens, the visible light-laser beamsplitter, the visible light first lens, the visible light filter, the visible light reflector, and finally is incident on the visible light detector to form an image in the visible light channel.

[0031] Further, the laser receiving channel comprises, in sequence along an optical path, the visible light-laser shared lens assembly, a laser first lens, a laser filter, and a laser receiving sensor.

[0032] The laser spectrum sequentially passes through the visible light-laser first shared lens, the visible light-laser second shared lens, the visible light-laser third shared lens, the visible light-laser fourth shared lens, the visible light-laser fifth shared lens, the visible light-laser beamsplitter, the laser first lens, the laser filter, and finally is incident on the laser receiving sensor to receive an echo signal in the laser receiving channel.

[0033] Further, the visible light channel and the laser channel both adopt a one-time imaging structure.

[0034] Further, the main reflector is a parabolic surface, and the secondary reflector is a parabolic surface.

[0035] Further, the middle-wave infrared channel can be imaged alone.

[0036] Further, the long-wave infrared channel can be imaged alone.

[0037] Further, the visible light channel can be imaged alone.

[0038] The present application has the following advantages:

[0039] 1. The application discloses a kind of multi-spectral common-aperture integrated photoelectric load optical systems, adopt coaxial two-reflection afocal optical configuration, the light of target scene is split after passing through coaxial two-reflection afocal system and beamsplitter, respectively into mid-wave infrared channel, long-wave infrared channel, visible light channel and laser receiving channel.Four channels are integrated together by the way of sharing front group coaxial two-reflection afocal system and beamsplitter, greatly simplify optical path, greatly compress optical system volume, and front group coaxial two-reflection afocal system and the imaging system of each channel can be separately perfected imaging, can be individually adjusted each channel, evaluate the imaging performance of each channel, finally carry out overall splicing, can greatly reduce the difficulty and cost of adjustment, shorten development cycle.

[0040] 2, the application realizes the integrated design of multi-spectral common-aperture optical system by coaxial two-reflection afocal system and beamsplitter, and the coaxial two-reflection afocal system is simple in structure, and the central field of view can be perfectly imaged, and can be individually adjusted, to reduce the difficulty of adjustment.

[0041] 3, the four channels of the application share fast mirror to realize boresight stabilization, and the sensor boresight shaking caused by external disturbance is corrected by swing scanning, to keep the boresight stable.

[0042] 4, the mid-wave infrared channel and the long-wave infrared channel of the application both adopt secondary imaging structure, and the visible light channel and the laser receiving channel both adopt primary imaging structure, which greatly simplifies the optical path, reduces the number of lenses in each channel, and improves the system transmittance.

[0043] The application integrates the detection advantages of laser, visible light, mid-wave infrared and long-wave infrared spectrum, and can provide optical search reconnaissance, target identification tracking and target indication positioning functions for warplanes, to realize all-weather and all-time information acquisition. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of specific embodiments or prior art. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0045] Figure 1 It is a kind of multi-spectral common-aperture integrated photoelectric load optical system optical path schematic diagram described in the application;

[0046] Figure 2 It is a kind of long-wave infrared channel optical system optical path schematic diagram in the specific embodiments of the application;

[0047] Figure 3 It is a kind of mid-wave infrared channel optical system optical path schematic diagram in the specific embodiments of the application;

[0048] Figure 4 The optical path schematic diagram of the visible light channel optical system in the embodiment of the present application is shown in the following figure.

[0049] Figure 5 The optical path schematic diagram of the laser receiving channel optical system in the embodiment of the present application is shown in the following figure.

[0050] In the figure, 1 represents a primary mirror, 2 represents a secondary mirror, 3 represents a fast mirror, 4 represents a beam splitter, 5 represents an axicon mirror, 6 represents a first common lens for middle and long wavelengths, 7 represents a second common lens for middle and long wavelengths, 8 represents a third common lens for middle and long wavelengths, 9 represents a fourth common lens for middle and long wavelengths, 10 represents a middle-long wavelength beam splitter, 11 represents a first long wavelength mirror, 12 represents a first long wavelength lens, 13 represents a second long wavelength lens, 14 represents a second long wavelength mirror, 15 represents a third long wavelength lens, 16 represents a fourth long wavelength lens, 17 represents a long wavelength detector, 18 represents a first middle wavelength mirror, 19 represents a first middle wavelength lens, 20 represents a second middle wavelength mirror, 21 represents a second middle wavelength lens, 22 represents a third middle wavelength lens, 23 represents a middle wavelength detector, 24 represents a first common lens for visible light and laser, 25 represents a second common lens for visible light and laser, 26 represents a third common lens for visible light and laser, 27 represents a fourth common lens for visible light and laser, 28 represents a fifth common lens for visible light and laser, 29 represents a visible light-laser beam splitter, 30 represents a first visible light lens, 31 represents a visible light filter, 32 represents a visible light mirror, 33 represents a visible light detector, 34 represents a first laser lens, 35 represents a laser filter, and 36 represents a laser receiving sensor. DETAILED DESCRIPTION

[0051] In the following description, the specific implementation details (such as optical path structure, operation flow, optical path reflection principle and example parameters) provided by the specification regarding “a multispectral common-aperture integrated photoelectric payload optical system” are fundamentally intended to be illustratively explained rather than limitatively defined, and are intended to help those skilled in the art to thoroughly understand the principles and implementation of the present application; however, those skilled in the art should understand that these details only represent one of the possible implementation manners, and the core idea of the present application can be realized through other technical means or alternative schemes without departing from the spirit and essence thereof, and the omission of the details of conventional experimental methods and devices in the specification is to avoid redundant information from interfering with the understanding of the innovative points, which does not mean that these commonly known technologies are not required in implementation, and those skilled in the art should be able to supplement and use them based on their professional knowledge.

[0052] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. The following embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application.

[0053] In an embodiment, a multi-spectral common-aperture integrated photoelectric payload optical system is provided, which comprises a reflective light splitting system, a middle-long wave common lens assembly, a long wave infrared channel, a middle wave infrared channel, a visible laser common lens assembly, a visible light channel, and a laser receiving channel.

[0054] The middle-long wave common lens assembly is used as a common assembly of the long wave infrared channel and the middle wave infrared channel.

[0055] The visible laser common lens assembly is used as a common assembly of the visible light channel and the laser receiving channel.

[0056] The reflective light splitting system, the middle-long wave common lens assembly, and the long wave infrared channel constitute a long wave infrared optical system.

[0057] The reflective light splitting system, the middle-long wave common lens assembly, and the middle wave infrared channel constitute a middle wave infrared optical system.

[0058] The reflective light splitting system, the visible laser common lens assembly, and the visible light channel constitute a visible light optical system.

[0059] The reflective light splitting system, the visible laser common lens assembly, and the laser receiving channel constitute a laser receiving optical system.

[0060] The reflective light splitting system is used for reflecting light of a target scene multiple times and dividing the light into a middle-long wave spectral band and a visible laser spectral band.

[0061] The middle-long wave common lens assembly is used for guiding the middle-long wave spectral band into the middle wave infrared channel and the long wave infrared channel, respectively.

[0062] The visible laser common lens assembly is used for guiding the visible laser spectral band into the visible light channel and the laser receiving channel, respectively.

[0063] The multi-spectral common-aperture integrated photoelectric payload optical system disclosed in the embodiment greatly simplifies the optical path, greatly compresses the volume of the optical system, and the imaging systems of the respective channels can independently complete imaging, and the respective channels can be independently adjusted and evaluated, and finally, the whole is spliced, which can greatly reduce the adjustment difficulty and cost and shorten the development cycle.

[0064] Embodiment two, in combination Figure 1 The embodiment is a further limitation of the multispectral common-aperture integrated optical system of the payload of the first embodiment, and the reflection light splitting system is further limited in the embodiment, which specifically includes:

[0065] As shown in Figure 1 The reflection light splitting system includes a primary mirror 1, a secondary mirror 2, a fast mirror 3, a light splitting mirror 4, and a folded mirror 5.

[0066] The light of the target scene is incident on the primary mirror 1, the secondary mirror 2 is arranged on the reflection light path of the primary mirror 1, the fast mirror 3 is arranged on the reflection light path of the secondary mirror 2, the light splitting mirror 4 is arranged on the reflection light path of the fast mirror 3, the light splitting mirror 4 is used to split the light into a medium-wave-long-wave spectral band and a visible-laser spectral band, and is also used to guide the visible-laser spectral band into a visible light channel and a laser channel through a visible-laser common lens assembly, respectively, and the folded mirror 5 is arranged on the reflection light path of the light splitting mirror 4 and is used to guide the medium-wave-long-wave spectral band into a medium-wave infrared channel and a long-wave infrared channel through a medium-wave-long-wave common lens assembly.

[0067] Further, in actual application, the primary mirror 1, the secondary mirror 2, and the fast mirror 3 are further limited, which specifically includes:

[0068] The primary mirror 1, the secondary mirror 2, and the fast mirror 3 are collectively designed as a coaxial two-mirror afocal system, which is used for light collection and compression of the beam aperture and perfect imaging of the central field of view; and the coaxial two-mirror afocal system can be individually adjusted and installed to reduce the difficulty of adjustment.

[0069] Further, in actual application, the fast mirror 3 is further limited, which specifically includes:

[0070] The fast mirror 3 is placed at an angle of 45° with the optical axis, and the four channels share the fast mirror 3, which is used to compensate for the shaking of the visual axis caused by external disturbances.

[0071] Further, in actual application, the light splitting mirror 4 is further limited, which specifically includes:

[0072] The light splitting mirror 4 is placed at an angle of 45° with the optical axis, and the light splitting mirror 4 is used to transmit the visible light and laser spectral bands and reflect the medium-wave infrared and long-wave infrared spectral bands.

[0073] Further, in actual application, the primary mirror 1 and the secondary mirror 2 are further limited, which specifically includes that the primary mirror 1 has a parabolic surface, and the secondary mirror 2 has a parabolic surface.

[0074] In the embodiment, the primary mirror 1 and the secondary mirror 2 can both be made of microcrystalline glass.

[0075] It can be seen that the multi-spectral common-aperture integrated optical system of the present embodiment is provided, which realizes the common-aperture integration design of laser spectrum, visible spectrum, medium-wave infrared spectrum and long-wave infrared spectrum through coaxial two-reflection afocal system (primary mirror 1, secondary mirror 2 and fast mirror 3) and beamsplitter 4, effectively improves the all-weather and all-time information acquisition capability of the photoelectric payload, and reduces the volume of the optical system.

[0076] It can also be seen that the long-wave infrared channel and the medium-wave infrared channel share the primary mirror 1, the secondary mirror 2, the fast mirror 3, the beamsplitter 4 and the folded mirror 5, and the visible light channel and the laser receiving channel share the primary mirror 1, the secondary mirror 2, the fast mirror 3 and the beamsplitter 4, and the four channels do not share the transmission lens group, which is convenient for correcting chromatic aberration and aberration of each waveband, and effectively improves the transmittance.

[0077] It can also be seen that the four-channel common fast mirror 3 of the present embodiment can correct the sensor view axis shaking caused by external disturbance and maintain the stability of the view axis.

[0078] It can also be seen that the beamsplitter 4 of the present embodiment can transmit the visible light and laser spectrum, medium-wave infrared and long-wave infrared spectrum, so that the four spectrum bands enter the long-wave infrared channel, the medium-wave infrared channel, the visible light channel and the laser receiving channel respectively.

[0079] It can also be seen that the present embodiment adopts 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 beamsplitter, and 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 through the way of sharing the front coaxial two-reflection afocal system and the beamsplitter, which greatly simplifies the optical path, greatly compresses the volume of the optical system, and the front coaxial two-reflection afocal system and the imaging system of each channel can be separately perfected for imaging, each channel can be separately adjusted, the imaging performance of each channel can be evaluated, and finally the whole is spliced, which can greatly reduce the adjustment difficulty and cost, and shorten the development cycle.

[0080] Embodiment three, in combination Figure 2 The present embodiment is a further limitation of the multi-spectral common-aperture integrated optical system of any one of the above embodiments, and in the present embodiment, the long-wave infrared channel and the medium-wave-long-wave common lens assembly are further limited, specifically including:

[0081] As shown in Figure 2 The long-wave infrared channel includes, in sequence along the optical path, a medium-wave-long-wave common lens assembly, a long-wave first mirror 11, a long-wave first lens 12, a long-wave second lens 13, a long-wave second mirror 14, a long-wave third lens 15, a long-wave fourth lens 16 and a long-wave detector 17;

[0082] As Figure 2 shown, the mid-wave to long-wave shared lens assembly includes, in sequence along the optical path, a mid-wave to long-wave first shared lens 6, a mid-wave to long-wave second shared lens 7, a mid-wave to long-wave third shared lens 8, a mid-wave to long-wave fourth shared lens 9, and a mid-long-wave beamsplitter 10.

[0083] The long-wave infrared spectrum sequentially passes through the mid-wave to long-wave first shared lens 6, the mid-wave to long-wave second shared lens 7, the mid-wave to long-wave third shared lens 8, the mid-wave to long-wave fourth shared lens 9, the mid-long-wave beamsplitter 10, the long-wave first mirror 11, the long-wave first lens 12, the long-wave second lens 13, the long-wave second mirror 14, the long-wave third lens 15, the long-wave fourth lens 16, and finally enters the long-wave detector 17 to form a long-wave infrared channel image.

[0084] Further, in actual application, the long-wave infrared channel is further limited, specifically including:

[0085] The long-wave infrared channel adopts a two-time imaging structure, controls the entrance pupil to be at the exit pupil position of the coaxial two-mirror afocal system, and matches the exit pupil position with the cold light stop of the long-wave detector 17, so as to realize 100% cold light stop efficiency.

[0086] In this embodiment, the mid-wave to long-wave shared lens material can be made of germanium material, zinc selenide material, and zinc sulfide, and the long-wave channel lens material can be made of germanium material, zinc selenide material, and IRG206 material, thereby reducing the processing difficulty and saving the production cost.

[0087] Embodiment four, in combination Figure 3 This embodiment is a further limitation of the multi-spectral shared-aperture integrated optoelectronic payload optical system of any one of the above embodiments. In this embodiment, the mid-wave infrared channel is further limited, specifically including:

[0088] As Figure 3 shown, the mid-wave infrared channel includes, in sequence along the optical path, a mid-wave to long-wave shared 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.

[0089] The middle wave infrared spectrum is sequentially refracted by a middle wave-long wave first shared lens 6, a middle wave-long wave second shared lens 7, a middle wave-long wave third shared lens 8, a middle wave-long wave fourth shared lens 9, a middle-long wave spectroscope 10, a middle wave first reflector 18, a middle wave first lens 19, a middle wave second reflector 20, a middle wave second lens 21, a middle wave third lens 22, and finally incident on a middle wave detector 23 to perform middle wave infrared channel imaging.

[0090] Further, in actual application, the middle wave infrared channel is further limited, specifically including:

[0091] The middle wave infrared channel adopts a two-imaging structure, and the entrance pupil is controlled at the exit pupil position of the coaxial two-reflection afocal system, and the exit pupil position is matched with the cold light stop of the middle wave detector 23, so as to realize 100% cold light stop efficiency.

[0092] In the embodiment, the middle wave-long wave shared lens material can be made of germanium material, zinc selenide material and zinc sulfide, and the middle wave channel lens material can be made of silicon material and germanium material, thereby reducing the processing difficulty and saving the production cost.

[0093] Embodiment four, in combination Figure 4 The embodiment is a further limitation of the multi-spectrum shared-aperture integrated photoelectric load optical system according to any one of the above embodiments. In the embodiment, the visible light channel and the visible light-laser shared lens assembly are further limited, specifically including:

[0094] As shown in Figure 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 arranged in sequence along the light path;

[0095] As shown in Figure 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 arranged in sequence along the light path;

[0096] The visible light spectrum sequentially passes 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 beam splitter 29, the visible light first lens 30, the visible light filter 31, the visible light reflector 32, and finally is incident on the visible light detector 33 to form an image in the visible light channel.

[0097] Further, in actual application, the visible light channel is further limited, specifically including:

[0098] The visible light channel adopts a one-time imaging structure, the lens material can be combined with flint glass and crown glass, the number of lenses is small, and the system transmittance is high.

[0099] Embodiment five, in combination Figure 5 This embodiment is a further limitation of the multi-spectrum shared-aperture integrated optical system of any one of the above embodiments. In this embodiment, the laser receiving channel is further limited, specifically including:

[0100] As shown in Figure 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 arranged in sequence along the light path;

[0101] The laser spectrum sequentially passes 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 beam splitter 29, the laser first lens 34, the laser filter 35, and finally is incident on the laser receiving sensor 36 to receive the echo signal in the laser receiving channel.

[0102] Further, in actual application, the laser receiving channel is further limited, specifically including:

[0103] The laser receiving channel adopts a one-time imaging structure, the lens material can be combined with flint glass and crown glass, the number of lenses is small, and the system transmittance is high.

[0104] Embodiment six, in combination Figures 1 to 5To illustrate the embodiment, the multi-spectral common-aperture integrated photoelectric load optical system according to the above embodiment provides a specific multi-spectral common-aperture integrated photoelectric load optical system, which comprises a primary mirror 1, a secondary mirror 2, a fast mirror 3, a beam splitter 4, a folded mirror 5, a long-wave infrared channel, a medium-wave infrared channel, a visible light channel, and a laser receiving channel; light of a target scene is incident on the primary mirror 1, the secondary mirror 2 is arranged on the reflected light path of the primary mirror 1, the fast mirror 3 is arranged on the reflected light path of the secondary mirror 2, the beam splitter 4 is arranged on the reflected light path of the fast mirror 3, the beam splitter 4 is used to divide the light into a medium-wave-long-wave spectral band and a visible light-laser spectral band, the folded mirror 5 is arranged on the reflected light path of the beam splitter 4, and is used to guide the medium-wave-long-wave spectral band into the medium-wave infrared channel and the long-wave infrared channel, respectively, and the visible light-laser spectral band passes through the beam splitter 4 and enters the visible light channel and the laser channel, respectively;

[0105] The long-wave infrared channel comprises, in sequence along the light path, a medium-wave-long-wave first common lens 6, a medium-wave-long-wave second common lens 7, a medium-wave-long-wave third common lens 8, a medium-wave-long-wave fourth common lens 9, a medium-long-wave beam splitter 10, a long-wave first mirror 11, a long-wave first lens 12, a long-wave second lens 13, a long-wave second mirror 14, a long-wave third lens 15, a long-wave fourth lens 16, and a long-wave detector 17, the long-wave infrared spectral band passes through the medium-wave-long-wave first common lens 6, the medium-wave-long-wave second common lens 7, the medium-wave-long-wave third common lens 8, the medium-wave-long-wave fourth common lens 9 in sequence, is reflected by the medium-long-wave beam splitter 10, is reflected by the long-wave first mirror 11, is refracted by the long-wave first lens 12, is refracted by the long-wave second lens 13, is reflected by the long-wave second mirror 14, is refracted by the long-wave third lens 15, is refracted by the long-wave fourth lens 16, and finally is incident on the long-wave detector 17 to form an image of the long-wave infrared channel;

[0106] The medium-wave infrared channel comprises, in sequence along the light path, the medium-wave-long-wave first common lens 6, the medium-wave-long-wave second common lens 7, the medium-wave-long-wave third common lens 8, the medium-wave-long-wave fourth common lens 9, the medium-long-wave beam splitter 10, a medium-wave first mirror 18, a medium-wave first lens 19, a medium-wave second mirror 20, a medium-wave second lens 21, a medium-wave third lens 22, and a medium-wave detector 23, the medium-wave infrared spectral band passes through the medium-wave-long-wave first common lens 6, the medium-wave-long-wave second common lens 7, the medium-wave-long-wave third common lens 8, the medium-wave-long-wave fourth common lens 9 in sequence, is refracted by the medium-long-wave beam splitter 10, is reflected by the medium-wave first mirror 18, is refracted by the medium-wave first lens 19, is reflected by the medium-wave second mirror 20, is refracted by the medium-wave second lens 21, is refracted by the medium-wave third lens 22, and finally is incident on the medium-wave detector 23 to form an image of the medium-wave infrared channel;

[0107] The visible light channel includes visible light-laser first shared lens 24, visible light-laser second shared lens 25, visible light-laser third shared lens 26, visible light-laser fourth shared lens 27, visible light-laser fifth shared lens 28, visible light-laser beam splitter 29, visible light first lens 30, visible light filter 31, visible light mirror 32 and visible light detector 33 arranged in sequence along the light path, and the visible light spectrum is refracted by visible light-laser first shared lens 24, visible light-laser second shared lens 25, visible light-laser third shared lens 26, visible light-laser fourth shared lens 27, visible light-laser fifth shared lens 28, reflected by visible light-laser beam splitter 29, refracted by visible light first lens 30, refracted by visible light filter 31, reflected by visible light mirror 32 and finally incident on visible light detector 33 for visible light channel imaging.

[0108] The laser receiving channel includes visible light-laser first shared lens 24, visible light-laser second shared lens 25, visible light-laser third shared lens 26, visible light-laser fourth shared lens 27, visible light-laser fifth shared lens 28, visible light-laser beam splitter 29, laser first lens 34, laser filter 35 and laser receiving sensor 36 arranged in sequence along the light path, and the laser spectrum is refracted by visible light-laser first shared lens 24, visible light-laser second shared lens 25, visible light-laser third shared lens 26, visible light-laser fourth shared lens 27, visible light-laser fifth shared lens 28, refracted by visible light-laser beam splitter 29, refracted by laser first lens 34, refracted by laser filter 35 and finally incident on laser receiving sensor 36 for laser receiving channel echo signal reception.

[0109] As shown in Figure 1 , the long-wave infrared channel and the medium-wave infrared channel share the main mirror 1, the secondary mirror 2, the fast mirror 3, the beam splitter 4 and the folded mirror 5, and the long-wave infrared channel optical system and the medium-wave infrared channel optical system are respectively shown in Figure 2 and Figure 3 ; the visible light channel and the laser receiving channel share the main mirror 1, the secondary mirror 2, the fast mirror 3 and the beam splitter 4, and the visible light channel optical system and the laser receiving channel optical system are respectively shown in Figure 4 and Figure 5 ;

[0110] Further, the long-wave infrared channel and the medium-wave infrared channel share the main mirror 1, the secondary mirror 2, the fast mirror 3, the beam splitter 4 and the folded mirror 5, and the visible light channel and the laser receiving channel share the main mirror 1, the secondary mirror 2, the fast mirror 3 and the beam splitter 4, and the four channels do not share the transmission lens group, which is convenient for correcting chromatic aberration and aberration of each waveband, and effectively improves the transmittance.

[0111] The primary mirror 1, the secondary mirror 2 and the fast mirror 3 are designed as a coaxial two-mirror afocal system for light collection and compression of the beam aperture, perfect imaging of the central field of view, and independent assembly and adjustment, thereby reducing the difficulty of assembly and adjustment.

[0112] The base materials of the primary mirror 1 and the secondary mirror 2 can be microcrystalline glass or silicon carbide, the primary mirror 1 has a parabolic surface, and the secondary mirror 2 has a parabolic surface.

[0113] The fast mirror 3 is placed at an angle of 45° to the optical axis, and the four channels share the fast mirror 3, which corrects the shaking of the sensor visual axis caused by external disturbances through swing scanning, thereby maintaining the stability of the visual axis.

[0114] The beam splitter 4 is placed at an angle of 45° to the optical axis, the beam splitter 4 transmits the visible light and laser spectrum and reflects the mid-wave infrared and long-wave infrared spectrum, and the four spectrum bands enter the mid-wave infrared channel, the long-wave infrared channel, the visible light channel and the laser receiving channel respectively.

[0115] The base material of the beam splitter 4 is selected to be a material that transmits visible light and laser spectrum, and the front and rear surfaces are respectively coated with a beam splitting film and an anti-reflection film.

[0116] The fold mirror 5 is placed at an angle of 45° to the optical axis, and the mid-wave infrared channel and the long-wave infrared channel share the fold mirror 5 to realize the folding of the optical path.

[0117] The base material of the fold mirror 5 can be quartz or H-K9L, and the surface is coated with a reflective film.

[0118] The long-wave infrared channel adopts a two-image structure, the entrance pupil is set to be at the exit pupil position of the coaxial two-mirror afocal system, and the exit pupil position is matched with the cold light stop of the long-wave detector 17 to realize 100% cold light stop efficiency.

[0119] The mid-wave infrared channel adopts a two-image structure, the entrance pupil is set to be at the exit pupil position of the coaxial two-mirror afocal system, and the exit pupil position is matched with the cold light stop of the mid-wave detector 23 to realize 100% cold light stop efficiency.

[0120] The visible light channel adopts a one-image structure, and the reasonable matching of high refractive index, low dispersion optical elements and low refractive index, high dispersion optical elements solves the correction of chromatic aberration and secondary spectrum of the optical system, the number of lenses used is small, and the system transmittance is high.

[0121] The laser receiving channel adopts a one-image structure, and the number of lenses used is small, and the system transmittance is high.

[0122] In summary, the multi-spectral common-aperture integrated optical system of the present embodiment adopts coaxial two-mirror afocal optical configuration. The light of a target scene is split by a coaxial two-mirror afocal system and a beam splitter after entering the system, and enters a mid-wave infrared channel, a long-wave infrared channel, a visible light channel and a laser receiving channel respectively. The four channels are integrated together by sharing the coaxial two-mirror afocal system and the beam splitter, which greatly simplifies the optical path, greatly compresses the volume of the optical system, and the coaxial two-mirror afocal system and the imaging system of each channel can be separately perfected for imaging, each channel can be separately adjusted, the imaging performance of each channel can be evaluated, and finally the whole system can be spliced, which greatly reduces the difficulty and cost of adjustment and shortens the development cycle.

[0123] Further, the coaxial two-mirror afocal system and the beam splitter are used to realize the integrated design of the multi-spectral common-aperture optical system. The coaxial two-mirror afocal system has a simple structure and can perfectly image the central field of view, and can be separately adjusted to reduce the difficulty of adjustment.

[0124] Further, the coaxial two-mirror afocal system and the beam splitter are used to realize the integrated design of the multi-spectral common-aperture optical system. The coaxial two-mirror afocal system has a simple structure and can perfectly image the central field of view, and can be separately adjusted to reduce the difficulty of adjustment.

[0125] Further, the coaxial two-mirror afocal system and the beam splitter are used to realize the integrated design of the multi-spectral common-aperture optical system. The coaxial two-mirror afocal system has a simple structure and can perfectly image the central field of view, and can be separately adjusted to reduce the difficulty of adjustment.

[0126] As can be seen, the multi-spectral common-aperture integrated optical system of the present embodiment integrates the detection advantages of laser, visible light, mid-wave infrared and long-wave infrared spectral bands, and can provide functions such as optical search reconnaissance, target identification tracking and target indication positioning for a warplane, and realize all-weather and all-time information acquisition.

[0127] In the seventh embodiment, the multi-spectral common-aperture integrated optical system of the above-mentioned embodiments is described in detail in combination with specific parameters.

[0128] The multi-spectral common-aperture integrated optical system of the present embodiment has a long-wave infrared optical system with a focal length of 450 mm, which is suitable for a cooled long-wave infrared detector with a resolution of 640x512, a pixel pitch of 25 μm x 25 μm and a cold shield F number of F2; a mid-wave infrared optical system with a focal length of 720 mm, which is suitable for a cooled mid-wave infrared detector with a resolution of 1280x1024, a pixel pitch of 12 μm x 12 μm and a cold shield F number of F4; a visible light optical system with a focal length of 1080 mm, which is suitable for a visible light detector with a resolution of 5120x4096 and a pixel pitch of 4.5 μm x 4.5 μm; and a laser receiving optical system with a field of view angle of 2 mrad.

[0129] The primary mirror 1, the secondary mirror 2 and the fast mirror 3 in the embodiment are designed as a coaxial two-mirror afocal system, used for light collection and compression of the beam aperture, perfect imaging of the central field of view, and can be independently adjusted to reduce the difficulty of adjustment;

[0130] In the embodiment, the primary mirror 1 is preferably a parabolic mirror made of microcrystalline glass, and the secondary mirror 2 is preferably a parabolic mirror made of microcrystalline glass;

[0131] In the embodiment, the fast mirror 3 is preferably placed at an angle of 45° to the optical axis, and four channels share the fast mirror 3, which is used to compensate for the shaking of the visual axis caused by external disturbances.

[0132] In the embodiment, the beamsplitter 4 is preferably placed at an angle of 45° to the optical axis, made of H-K9L, with a thickness of 10 mm, and the front and rear surfaces are respectively coated with beamsplitting film and antireflection film, transmitting 0.6 μm~0.9 μm and 1.064 μm, and reflecting 3.7 μm~4.8 μm and 7.7 μm~9.5 μm;

[0133] In the embodiment, the long-wave beamsplitter 10 is preferably placed at an angle of 45° to the optical axis, made of silicon, with a thickness of 10 mm, and the front and rear surfaces are respectively coated with beamsplitting film and antireflection film, transmitting 3.7 μm~4.8 μm, and reflecting 7.7 μm~9.5 μm;

[0134] In the embodiment, the visible light-laser beamsplitter 29 is preferably placed at an angle of 45° to the optical axis, made of H-K9L, with a thickness of 10 mm, and the front and rear surfaces are respectively coated with beamsplitting film and antireflection film, transmitting 1.064 μm, and reflecting 0.6 μm~0.9 μm;

[0135] In the embodiment, the fold mirror 5 is preferably placed at an angle of 45° to the optical axis, and both are made of H-K9L and coated with 3.7 μm~4.8 μm and 7.7 μm~9.5 μm high reflection film;

[0136] In the embodiment, the long-wave first mirror 11 and the long-wave second mirror 14 are both preferably placed at an angle of 45° to the optical axis, and both are made of H-K9L and coated with 7.7 μm~9.5 μm high reflection film;

[0137] In the embodiment, the middle-wave first mirror 18 and the middle-wave second mirror 20 are both preferably placed at an angle of 45° to the optical axis, and both are made of H-K9L and coated with 3.7 μm~4.8 μm high reflection film;

[0138] In the embodiment, the visible light mirror 32 is preferably placed at an angle of 45° to the optical axis, and both are made of H-K9L and coated with 0.6 μm~0.9 μm high reflection film;

[0139] The first, second, third and fourth common lenses for middle and long wavelengths 6, 7, 8 and 9 in the embodiment are preferably made of germanium, zinc selenide and zinc sulfide;

[0140] The first, second, third and fourth lenses for long wavelengths 12, 13, 15 and 16 in the embodiment are preferably made of germanium, zinc selenide and I RG206;

[0141] The first, second and third lenses for middle wavelengths 19, 21 and 22 in the embodiment are preferably made of silicon and germanium;

[0142] The first, second, third, fourth, fifth common lenses for visible light and laser 24, 25, 26, 27 and 28, and the first lens for visible light 30 and the first lens for laser 34 in the embodiment are preferably made of flint glass and crown glass.

[0143] In the embodiment, the specific parameters of the lenses in the long-wave infrared optical system are shown in Table 1.

[0144] Table 1

[0145]

[0146] In the embodiment, the aspheric coefficients used in the long-wave infrared optical system are shown in Table 2.

[0147] Table 2

[0148]

[0149] The aspheric surfaces mentioned above are all even aspheric surfaces, and their expressions are as follows:

[0150]

[0151] In the expressions, h is the distance from the vertex of the aspheric surface to the point on the aspheric surface along the optical axis, is the sag of the aspheric surface at the position with a height of h from the vertex of the aspheric surface, is the radius of curvature, is the conic coefficient, , , , is the aspheric coefficient.

[0152] In the embodiment, the specific parameters of the lenses in the middle-wave infrared optical system are shown in Table 3.

[0153] Table 3

[0154]

[0155] In the present embodiment, the aspherical coefficients used in the middle-wave infrared optical system are shown in Table 4:

[0156] Table 4

[0157]

[0158] The aspherical surfaces mentioned above are all even aspherical surfaces, and their expressions are as follows:

[0159]

[0160] In the expression, h is the height of the aspherical surface along the optical axis direction, and is the distance vector height of the aspherical surface at the position of height h from the vertex of the aspherical surface, is the radius of curvature, is the conic coefficient, , , , , is the aspherical coefficient.

[0161] In the present embodiment, the specific parameter data of each lens in the visible light optical system are shown in Table 5:

[0162] Table 5

[0163]

[0164] In the present embodiment, the specific parameter data of each lens in the laser receiving optical system are shown in Table 6:

[0165] Table 6

[0166]

[0167] In the above description, the terms "first", "second", etc. are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0168] In the above description, it should also be understood that, when used in the present specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or sets thereof.

[0169] The technical solutions of the present application are described in further detail through several specific embodiments above, in order to highlight the advantages and benefits of the technical solutions provided by the present application. However, the above several specific embodiments are not used as a limitation to the present application, and any reasonable changes and improvements, reasonable combinations and equivalent replacements of the embodiments, etc. based on the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A multi-spectral common aperture integrated optoelectronic payload optical system, characterized in that: It includes a reflection spectrometer system, a medium-wave and long-wave shared lens assembly, a long-wave infrared channel, a medium-wave infrared channel, a visible light and laser shared lens assembly, a visible light channel, and a laser receiving channel; The medium-wave-long-wave common lens assembly serves as a common assembly for the long-wave infrared channel and the medium-wave infrared channel; The visible light-laser shared lens assembly serves as a shared component for the visible light channel and the laser receiving channel; The reflection spectroscopic system, the medium-wave and long-wave common lens assembly, and the long-wave infrared channel constitute the long-wave infrared optical system; The reflection spectroscopic system, the medium-wave and long-wave common lens assembly, and the medium-wave infrared channel constitute the medium-wave infrared optical system; The reflective spectroscopic system, the visible light-laser common lens assembly, and the visible light channel constitute a visible light optical system; The reflection spectroscopic system, the visible light-laser common lens assembly, and the laser receiving channel constitute a laser receiving optical system; The reflective spectroscopic system is used to reflect the light of the target scene multiple times and divide it into the medium-wave-long-wave spectrum and the visible light-laser spectrum; The medium-wave and long-wave common lens assembly is used to direct the medium-wave and long-wave spectrum bands into the medium-wave infrared channel and the long-wave infrared channel respectively; The visible light-laser common lens assembly is used to direct the visible light-laser spectrum into the visible light channel and the laser receiving channel respectively; The reflective spectroscopic system comprises a primary reflector (1), a secondary reflector (2), a fast reflector (3), a spectroscope (4) and a folding mirror (5); Light from a target scene is incident on a main reflector (1); a secondary reflector (2) is provided on the reflected light path of the main reflector (1); a quick reflector (3) is provided on the reflected light path of the secondary reflector (2); a beam splitter (4) is provided on the reflected light path of the quick reflector (3); the beam splitter (4) is used to split the light into a medium-wave-long-wave spectrum segment and a visible light-laser spectrum segment, and is also used to guide the visible light-laser spectrum segment into a visible light channel and a laser channel respectively through a visible light-laser common lens assembly; a folding mirror (5) is provided on the reflected light path of the beam splitter (4) and is used to guide the medium-wave-long-wave spectrum segment into a medium-wave infrared channel and a long-wave infrared channel respectively through the medium-wave-long-wave common lens assembly.

2. The multi-spectral common aperture integrated optoelectronic payload optical system according to claim 1, characterized in that: The primary reflector (1), the secondary reflector (2) and the fast reflector (3) together form a coaxial two-mirror afocal system for collecting light and compressing the beam aperture, and improving the imaging of the central field of view; and the coaxial two-mirror afocal system can be independently adjusted.

3. The multi-spectral common aperture integrated optoelectronic payload optical system according to claim 2, characterized in that: The fast mirror (3) and the beam splitter (4) are both placed at an angle of 45° to the optical axis; The fast reflection mirror (3) shared by the four channels is used to compensate for the visual axis shaking caused by external disturbances; The four-channel common spectroscope (4) is used for transmitting visible light and laser spectrum and reflecting mid-wave infrared and long-wave infrared spectrum.

4. The multi-spectral common aperture integrated optoelectronic payload 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 reflector (11), a long-wave first lens (12), a long-wave second lens (13), a long-wave second reflector (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 optical path. The medium-wave-long-wave shared lens assembly 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 optical path. The long-wave infrared spectrum is sequentially refracted by the medium-wave-long-wave first shared lens (6), refracted by the medium-wave-long-wave second shared lens (7), refracted by the medium-wave-long-wave third shared lens (8), refracted by the medium-wave-long-wave fourth shared lens (9), reflected by the medium-long-wave spectroscope (10), reflected by the long-wave first reflector (11), refracted by the long-wave first lens (12), refracted by the long-wave second lens (13), reflected by the long-wave second reflector (14), refracted by the long-wave third lens (15), refracted by the long-wave fourth lens (16), and finally incident on the long-wave detector (17) for long-wave infrared channel imaging.

5. The multi-spectral common aperture integrated optoelectronic payload optical system according to claim 4, characterized in that: The medium-wave infrared channel comprises a medium-wave-long-wave common lens assembly, a medium-wave first reflector (18), a medium-wave first lens (19), a medium-wave second reflector (20), a medium-wave second lens (21), a medium-wave third lens (22) and a medium-wave detector (23) which are sequentially arranged along the optical path. The medium-wave infrared spectrum is sequentially refracted by the medium-wave-long-wave first shared lens (6), refracted by the medium-wave-long-wave second shared lens (7), refracted by the medium-wave-long-wave third shared lens (8), refracted by the medium-wave-long-wave fourth shared lens (9), refracted by the medium-long-wave spectroscope (10), reflected by the medium-wave first reflector (18), refracted by the medium-wave first lens (19), reflected by the medium-wave second reflector (20), refracted by the medium-wave second lens (21), refracted by the medium-wave third lens (22), and finally incident on the medium-wave detector (23) for medium-wave infrared channel imaging.

6. The multi-spectral common aperture integrated optoelectronic payload optical system according to claim 5, characterized in that: Both the long-wave infrared channel and the medium-wave infrared channel adopt a secondary imaging structure, and both set the entrance pupil at the exit pupil position of the coaxial two-mirror afocal system, and the exit pupil position is matched with the cold aperture of the long-wave detector (17) and the medium-wave detector (23) respectively.

7. The multi-spectral common aperture integrated optoelectronic payload optical system according to claim 1, characterized in that: The visible light channel comprises a visible light-laser common 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. The visible light-laser common lens assembly comprises a first visible light-laser common lens (24), a second visible light-laser common lens (25), a third visible light-laser common lens (26), a fourth visible light-laser common lens (27), a fifth visible light-laser common lens (28), and a visible light-laser spectroscope (29), which are sequentially arranged along the optical path. The visible light spectrum is sequentially refracted by a first visible light-laser common lens (24), a second visible light-laser common lens (25), a third visible light-laser common lens (26), a fourth visible light-laser common lens (27), a fifth visible light-laser common lens (28), reflected by a visible light-laser spectroscope (29), refracted by a first visible light lens (30), refracted by a visible light filter (31), reflected by a visible light reflector (32), and finally incident on a visible light detector (33) for visible light channel imaging.

8. The multi-spectral common aperture integrated optoelectronic payload optical system according to claim 7, characterized in that: 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) which are sequentially arranged along the optical path. The laser spectrum is sequentially refracted by the first visible light-laser common lens (24), the second visible light-laser common lens (25), the third visible light-laser common lens (26), the fourth visible light-laser common lens (27), the fifth visible light-laser common lens (28), the visible light-laser spectroscope (29), the first laser lens (34), the laser filter (35), and finally enters the laser receiving sensor (36) for receiving the laser receiving channel echo signal.

9. The multi-spectral common aperture integrated optoelectronic payload optical system according to claim 8, characterized in that: Both the visible light channel and the laser channel adopt a one-time imaging structure.

Images