66 results about "Primary mirror" patented technology

The invention relates to the technical field of optical precision interference measurement, in particular to a correction method for projection distortion detection of a primary mirror of a dynamic interferometer and a related product, and the method comprises the steps: obtaining a first coordinate and a second coordinate; determining a zero distortion point; obtaining an ideal imaging point set and an actual mapping point set after system projection through ray tracing; fitting to obtain a distortion function representing the distortion of the optical system; performing point-by-point correction on a phase diagram obtained by interference measurement, mapping pixel coordinates of the phase diagram into workpiece coordinates, obtaining interference measurement data corresponding to the actual surface of the primary mirror, and completing distortion correction; according to the method for correcting the surface shape projection distortion during interference measurement of the high-precision primary mirror of the large-aperture dynamic interferometer, the problem that in the process of assembling, repairing and developing the large-aperture Twyman type dynamic interferometer, the projection distortion effect of a detection system causes the loss of an accurate matching relation between a workpiece coordinate system and a detection coordinate system is solved.

The application relates to a mounting and adjusting method of a device provided with an array optical system, and belongs to the technical field of mounting and adjusting methods of optical system devices, and solves the problem of complex mounting and adjusting process of the existing optical system device. The mounting and adjusting method of the device provided with the array optical system comprises an array optical system and an assembly frame suitable for the array optical system; the mounting and adjusting method of the device provided with the array optical system comprises the following specific steps: S1, fixing the image inverting lens structure member to a supporting flange plate; S2, fixedly connecting one end of a connecting support rod with the supporting flange plate; S3, contact connecting the other end of the connecting support rod with an imaging main mirror structure member; and S4, after the imaging main mirror structure member is finely adjusted and the whole optical system can present a clear image, the mounting and adjusting are completed. The application solves the problem of complex mounting and adjusting process of the existing optical system device.

The invention discloses an optical telescope primary mirror assembly and an anti-backlash close-fitting method thereof. The primary mirror assembly comprises a telescope primary mirror, a primary mirror mounting seat, a central mandrel, a pressing ring and a plurality of copper sheets. The primary mirror mounting seat is coaxially connected with the central mandrel through a screw and a positioning pin; the primary mirror of the telescope is embedded in the primary mirror mounting seat, and the central spindle penetrates through the central through hole of the primary mirror to finish coarse positioning of the primary mirror in the primary mirror mounting seat. A plurality of equal-thickness copper sheets are inserted into a circular gap between the central mandrel and the central through hole of the primary mirror at equal intervals, so that accurate positioning of the primary mirror in the primary mirror mounting seat is completed while the gap is eliminated. And a ball fastener is screwed into the threaded through hole in the side wall of the central mandrel, and the head of the fastener abuts against the corresponding copper sheet to realize interference fit. According to the design method, the assembled primary mirror assembly can be completely stable, the stress in all directions is uniform, the extrusion stress can be well conducted after the gravity posture is changed, and the good surface precision of the primary mirror is maintained.

A Cassegrain mirror 10 that can be easily detached from a microscope without requiring optical adjustment comprises: a Cassegrain mirror body 2 having a main mirror 22, a sub-mirror 24, a housing 26 that holds the main mirror 22 and the sub-mirror 24, and a barrel 32 that is provided on the outer side of the housing 26 and forms an optical path to a central hole 28; a slider 4 having a through-hole 42 sized to allow a gap to form when the barrel 32 is fitted therein, and an adjustment screw 46 for adjusting the position of the barrel 32 fitted in the through-hole 42; and a stage 6 configured such that the Cassegrain mirror body 2 can be attached to and detached from the stage 6 together with the slider 4. A through-hole 62 communicating with the through-hole 42 of the slider is formed in the stage 6. Shapes for positioning the slider 4 at a prescribed position with respect to the stage 6 by sliding the slider 4 in a prescribed direction once the slider 4 has been brought into contact with the surface of the stage 6 are respectively formed in the slider 4 and the stage 6.

This invention relates to an array optical system, an apparatus equipped with an array optical system, and an assembly and adjustment method, belonging to the field of optical imaging, and solves the problems of small field of view and large front-end diameter in existing optical systems. An array optical system includes an imaging primary mirror and an image-rotating mirror group; the primary mirror is used to transmit visible light rays to form a primary imaging visible light real image plane, and the image-rotating mirror group is used to transmit visible light rays to form a secondary imaging visible light real image plane. This invention solves the problems of small field of view and large front-end diameter in existing optical systems.

The utility model relates to the technical field of telescopes, in particular to an all-air air conditioning system for thermal control of a telescope dome. The all-air air conditioning system for thermal control of the telescope dome comprises a shell; the air return assembly is arranged in the shell, the air return assembly is provided with a first air return pipe, and the first air return pipe is communicated with the main mirror chamber; the air supply assembly is arranged in the shell, the air supply assembly is provided with a fresh air pipe and an air supply pipe, the fresh air pipe is communicated with the outside, and the air supply pipe is communicated with the main mirror chamber; the temperature control assembly is arranged in the shell, the temperature control assembly communicates with the fresh air pipe and the air supply pipe, and the temperature control assembly is used for heating or refrigerating air in the air supply pipe; and the detection assembly comprises sensors arranged in the main mirror chamber, the air supply pipe and the outside, and the sensors are connected with the temperature control assembly so as to transmit detected temperature information to the temperature control assembly. The air return assembly, the air supply assembly and the temperature control assembly are integrated in the shell, and the whole air conditioning system is simple in structure and convenient to control.

A large-aperture reflective zoom and laser communication integrated camera is disclosed, relating to the fields of optoelectronic imaging and laser communication technology. It addresses the technological gap where liquid zoom lenses cannot be applied to large-aperture RC systems, and the problem of relying on additional components for integrated visible light imaging and laser communication, making it difficult to balance lightweight design and high performance. The camera consists only of a primary mirror, a liquid zoom lens array, a grating film, a visible light detector, and an infrared detector. The front of the liquid zoom lens integrates a multi-layer liquid zoom lens array, with each layer having a different focal length. Independent drive circuits electrically control and adjust each lens layer to eliminate aberrations and adjust the focal length for optical systems of different apertures. The grating film on the back exhibits high reflectivity to visible light and high transmittance to 1550nm laser light, enabling visible light to form an RC structure imaging optical path, while the laser light is transmitted to complete communication. This invention can be widely applied in aerospace, aviation, and ground observation scenarios.

This invention relates to an optical system assembly frame, a device for assembling an optical system, and an assembly and adjustment method, belonging to the field of optical imaging devices, and solves the problem of complex structures in existing optical system devices. The assembly frame includes an imaging primary mirror structure, an image-rotating lens structure, a support flange, and a connecting rod; one end of the connecting rod is fixedly connected to the support flange by a fixing bolt, and the other end of the connecting rod is connected to the imaging primary mirror structure by an adjusting screw; the image-rotating lens structure is screwed to the support flange. This invention achieves a simple structure for the optical system assembly frame.

The application provides a telescope main mirror protection device, which comprises a support frame, a protection cover plate hinged to the support frame on one side of a mirror surface, the protection cover plate comprising a first cover plate and a second cover plate arranged in a folding manner, a driving mechanism connected to the protection cover plate, the driving mechanism being capable of controlling the first cover plate and the second cover plate to rotate, so that the first cover plate and the second cover plate are unfolded to cover the main mirror surface or are folded to expose the main mirror surface, and the first cover plate and the second cover plate are arranged in a folding manner on one side of the mirror surface when the telescope is not used, so that the structure of the protection device is more compact, the volume occupied by the protection device is reduced, and the driving mechanism can drive the protection cover plate to be unfolded or folded, so that the user does not need to manually unfold or fold the large-sized protection cover plate.

The invention provides a rotating arc ultra-light compact space remote sensing concave mirror device aiming at the pain points that an earth observation space telescope is difficult to deploy due to a large aperture, high in cost and inconvenient to transport, an integrated double-fan-shaped paraboloid primary mirror is taken as a core, and two fan-shaped sub-mirrors are symmetrically divided based on a complete paraboloid mirror of 10m or above; a stable-shape, high-temperature-resistant and low-temperature-resistant high-performance ceramic material including ultrahigh-modulus silicon carbide is adopted, water-based colloidal forming is used as a core process, and a'thickness gradient + honeycomb 'lightweight design is matched, so that the weight is reduced by more than 40%, and the surface precision reaches lambda / 50; a mainstream rocket fairing is adapted through vertical storage, a mirror body does not need a folding mechanism, a view field is complemented by means of coaxial rotation, fan-shaped scanning equivalent view field distortion generated by rotation of a double-fan-shaped primary mirror is accurately corrected through a ground AI image restoration system, 0.1 m-level and higher ground resolution and wide-view-field collaborative observation is achieved, and the system is simple in structure and convenient to use. The device has the advantages of being sufficient in rigidity, high in reliability and adaptive to the space environment, and meets the requirements of accurate measurement and wide coverage of earth observation.

The application discloses a high-performance three-mirror compact range antenna measurement system based on NURBS, combines a non-uniform rational B-spline curve surface fitting algorithm with a terahertz three-mirror compact range design, gives a new application of the non-uniform rational B-spline modeling technology according to electromagnetic background and aperture field distribution of a terahertz frequency band, realizes shape conversion of a beam aperture section from a circular shape to a square shape, takes into account the advantages of the B-spline, can realize free distribution of a grid, obtains a shaped surface of a compact range aperture meeting requirements, and solves the adaptation problem of the non-uniform rational B-spline in the shaping surface design process of the three-mirror compact range. In addition, in the process of the three-mirror compact range design, a good energy mapping condition is explored, the energy attenuation relationship function of the edge of a quiet zone is optimized by adjusting light and a propagation path, the energy dispersion problem caused by diffraction of light at the edge of a primary mirror is further solved, and the performance of the whole three-mirror compact range system is improved.

The application discloses a kind of patch mirror translation error correction methods for extended target, belong to optical imaging technical field.The method for realizing of the present application is: for the optical system of the block type primary mirror of having one piece reference mirror and one piece mirror to be adjusted, to any extended target imaging;Establish the relationship between the reciprocal of the power spectral density of image at the secondary peak position of optical transfer function under wideband spectrum illumination and the translation error of mirror to be adjusted, solve the translation error of mirror to be adjusted using the relationship;Adjust the translation of mirror to be adjusted;Repeat the process of calculating the translation error of mirror to be adjusted until the translation of mirror to be adjusted meets the threshold requirement;For the block type primary mirror optical system containing multiple mirrors, adjust the translation of mirror one by one in turn until all mirrors are adjusted, and the translation error correction is complete.The present application has the advantages of large dynamic range, few iteration times and fast convergence speed, and is suitable for on-orbit translation error correction of telescope with block type primary mirror.

The present application relates to a kind of diffraction polarization imaging systems, including two major modules of diffraction imaging system, focal plane detector, wherein the diffraction imaging system includes a diffraction primary mirror and a set of Schupmann achromatic structure.Target radiation light passes through front aperture and diffraction primary mirror, then after diffraction primary mirror Schupmann achromatic lens group is used to correct chromatic aberration of light emitted by diffraction primary mirror, and converging lens is used to converge into the focal plane polarization detector.Light can be detected by focal plane detector to 0 °, 45 °, 90 °, 135 ° polarization image, and polarization degree and polarization angle image can be solved by Stokes vector method.The above-mentioned diffraction polarization imaging system uses a diffraction primary mirror, a set of Schupmann achromatic structure and a focal plane detector, four different angle polarization images are obtained simultaneously by one-time exposure, the number of imaging system lenses is greatly reduced, and the cost and complexity of the system are reduced.

The invention discloses an electronic following type laser unit which comprises a rotating disc, a transmitting / receiving end, a substrate, a transmitting / receiving control panel, a rack and a driver. The rotating disc is driven by an azimuth driver to rotate by 360 degrees, and a central hole is provided with a connecting device with a shaping unit; the transmitting / receiving end comprises a primary mirror, a reflecting mirror, a pitching driver and a substrate, and the pitching driver drives the primary mirror to deflect. The mm laser emission heads / detectors on the substrate are arranged in a circumferential array, the installation shaft of the concave spherical substrate device faces the center of the sphere, and the plane substrate is provided with the spherical lens. The transmitting / receiving control panel controls the device to be lightened / operated to form a dynamic array rotating around the axis of the shaping unit, the arrangement direction is matched with the deflection angle of the primary mirror, efficient scanning can be realized without mechanically rotating the array, the structure is reliable, and the device is suitable for airspace detection and other scenes.

The utility model discloses a device for synchronously fixing and locking the side surface of a primary mirror of a reflecting telescope. The device comprises a primary mirror holding claw, a synchronous locking ring, a locking screw, a locking device bottom plate, a locking device fixing screw and a primary mirror bottom plate, according to the device, rotation of the synchronous locking ring is converted into axial thrust on the side edge of the primary mirror, the primary mirror holding claw is pushed to gradually press the primary mirror, the contact face and pressure of the primary mirror holding claw and the primary mirror holding claw are increased at the same time, and it is ensured that the side edge of the primary mirror is pressed and fixed in a face contact mode while the primary mirror is pushed to the center of an optical axis. Compared with a traditional primary mirror side face locking mode, the problems of primary mirror eccentricity, complex installation and debugging and the like caused by stress concentration and asynchronous multi-point adjustment of a traditional device are solved.

The invention discloses a high-precision surface shape detection supporting device for a large-aperture optical element, which solves the problem that the supporting force of an existing surface shape detection supporting device for an optical primary mirror to the optical primary mirror is difficult to ensure to be equal everywhere, and specifically comprises a supporting base, an azimuth mechanism, a pitching mechanism and a lifting mechanism, the lifting mechanism is arranged on the azimuth mechanism, and the lifting end is connected with a to-be-tested optical element; the azimuth mechanism is rotationally arranged on the supporting base and used for driving the lifting mechanism to rotate in the circumferential direction; and the pitching mechanism is arranged on the supporting base, is rotatably connected with the azimuth mechanism and is used for adjusting the pitching angles of the azimuth mechanism and the lifting mechanism. According to the surface type detection supporting device, azimuth adjustment, pitching adjustment, lifting adjustment and mutual superposition of the azimuth adjustment, the pitching adjustment and the lifting adjustment of the installation plane of the optical element to be detected can be achieved, and flatness adjustment can be better guaranteed.

This invention discloses a compact common-aperture three-band infrared optical system, comprising an infrared optical system body, a short-wave infrared imaging component, a mid-wave infrared imaging component, and a long-wave infrared imaging component. The infrared optical system body is sequentially arranged along the light incident direction with a Cassegrain afocal system, a secondary beam-shrinking structure, a first dichroic mirror, a second dichroic mirror, a short-wave infrared imaging component, a mid-wave infrared imaging component, and a long-wave infrared imaging component. All imaging components on the infrared optical system body are arranged in the axial space behind the primary mirror. The two dichroic separations achieve optical path separation, eliminating the need for complex folding and reflection structures, significantly reducing volume and weight, providing strong adaptability, simple processing and assembly, all-weather multi-feature detection, and simultaneously acquiring reflection features, high-temperature features, and room-temperature thermal radiation features, thereby improving target recognition rate.

The utility model provides a novel optical axis adjusting device. The novel optical axis adjusting device comprises a main lens base, an auxiliary lens cage, a main lens body and a main lens barrel, the primary mirror base comprises a bottom plate, a sealing plate, a primary mirror tray, a primary mirror lantern ring, a primary mirror pressing ring, a tightness adjusting ring, a plurality of holding claws and a plurality of adjusting knobs, the sealing plate is arranged on one face of the bottom plate, the adjusting knobs are connected with the primary mirror tray, the primary mirror body is arranged on the primary mirror tray, the primary mirror lantern ring is arranged on the outer side of the primary mirror body in a sleeving mode, and the holding claws are arranged on the primary mirror lantern ring. The tightness adjusting ring is located on the outer side of the multiple holding claws, and the primary mirror pressing ring is arranged on the side, away from the primary mirror tray, of the primary mirror body. The main lens barrel is sleeved on the outer side of the main lens body, and the auxiliary lens cage is arranged on the outer side of the main lens barrel. The holding claws tightly hold the periphery of the primary mirror body, the situation that the primary mirror body is damaged due to collision caused by a certain movement range is avoided, the primary mirror tray is adjusted through the adjusting knob, then the primary mirror body is indirectly adjusted, overall adjustment is easy and convenient, and convenience is well improved.

The invention relates to a spliced mirror adjusting method and device based on equal inclination interference, belongs to the technical field of large-aperture optical mirror surfaces, and solves the problems of complex system, environment sensitivity, poor real-time performance and the like of the existing spliced mirror co-phase detection method. The method comprises the following steps: installing an adjusting device at a theoretical curvature center position of a primary mirror of the large-aperture optical system; ideal spherical waves emitted by the point light source are divided into two paths through the optical splitter, wherein one path enters the large-aperture optical system reflector and is reflected back to the optical splitter; the other path of light enters the plane mirror through the lens group and is reflected back to the optical splitter; the two paths of reflected light are subjected to equal inclination interference at the optical splitter; and after the number of the equal-inclination interference fringes is extracted through the detection terminal, the position of each splicing mirror in the primary mirror of the large-aperture optical system is adjusted until the number of the equal-inclination interference fringes is minimum. The device is simple in principle, compact in structure and high in environment robustness, and a reliable means is provided for rapid and high-precision real-time co-phase adjustment of the spliced mirror.

The utility model discloses a rapid assembling and adjusting device for a space beam combining reflector group. The rapid assembling and adjusting device comprises a helium-neon laser (1), a total reflection mirror (2) with a center hole, a rotary table simulation mechanism (3), a reflector diaphragm (4), an autocollimator (5), an internal diaphragm (6), a beam combining box (7) and a primary mirror (8). A helium-neon laser (1), a total reflection mirror (2) with a center hole and an internal diaphragm (6) are coaxially installed on the rotary table simulation mechanism (3) from top to bottom. The rotary table simulation mechanism (3) is arranged at the center of the top surface of the beam combining box (7); the primary mirror (8) is arranged in the beam combining box (7) and is positioned right below the internal diaphragm (6); the mirror surface of the primary mirror (8) is provided with a reflector diaphragm (4); and the autocollimator (5) is erected outside the beam combining box (7), and the emergent light of the autocollimator (5) is consistent with the reflected light path of the primary mirror (8). According to the utility model, the autocollimator is adopted to replace laser of different wavebands, is not limited by the adjustment of the target wavebands, is suitable for the adjustment of the combined space beam combining system, and is wide in application range and strong in practicability.

The invention discloses a vertical installation, adjustment, support and detection integrated system for a large-aperture space reflector. The vertical installation, adjustment, support and detection integrated system comprises a primary mirror chamber, a primary mirror, a statically determinate support assembly, a locking support assembly and a test assembly, statically-determinate supporting of the primary mirror is achieved through the statically-determinate supporting assembly. In the testing stage, one end of the locking and supporting assembly is bonded with the back of the primary mirror, the other end of the locking and supporting assembly is connected with a primary mirror chamber through the testing assembly, and the primary mirror surface shape is tested in the gravity unloading state; in the launching stage, one end of the locking and supporting assembly is bonded with the back of the primary mirror, and the other end is fixedly connected with the primary mirror chamber; when the active section is launched, the locking and supporting assembly is locked, the primary mirror is supported in an auxiliary mode, after injection, the locking and supporting assembly is unlocked, and the locking and supporting assembly is separated from a mirror chamber of the primary mirror. According to the invention, gravity unloading is carried out on the primary mirror in the test stage, the gravity influence is reduced, and the in-orbit surface shape precision is simulated; auxiliary support is provided in the active section, and the vibration resistance of the primary mirror is improved; and unlocking is carried out after injection, thereby realizing static support of the reflector and ensuring the stability of the in-orbit surface shape.

This utility model discloses an easily adjustable visual inspection lens assembly, specifically relating to the field of lens technology. It includes a visual camera lens, with a main lens body slidably connected to one end of the lens. An adjustment and switching structure is provided at the top of the outer wall of the main lens body. The adjustment and switching structure includes a connecting block fixedly mounted at the top of the outer wall of the main lens body, a switching mirror fixedly connected to the top of the connecting block, a rotating rod fixedly connected to one side of the connecting block, and a sleeve block rotatably connected to the outer wall of the rotating rod. The sleeve block is fixedly connected to the visual camera lens. This utility model employs an adjustment and switching structure where a rotating cap drives the rotating rod to rotate, which in turn drives the connecting block to rotate the switching mirror. The positions of the switching mirror and the main lens body are swapped, allowing the switching mirror to fit and protect the right end of the visual camera lens. This maintains the normal operation of the visual camera lens while also enabling cleaning of the main lens body.

This application relates to the field of optical system design technology, and discloses a design method, device, and electronic device for an optical telescope based on a stitched primary mirror. The method includes: determining the current aspherical surface parameters of aspherical stitched sub-mirrors in different layers of the optical system according to the optical system constraints of the stitched primary mirror; iteratively optimizing the current aspherical surface parameters according to a pre-constructed comprehensive evaluation function; obtaining optimized aspherical surface parameters of the aspherical stitched sub-mirrors in different layers that satisfy the design requirements of the comprehensive evaluation function within the target field of view; and the best-fit sphere corresponding to the optimized aspherical surface parameters; and outputting the optimization results. This invention can reduce the manufacturing difficulty and cost of the stitched sub-mirrors, avoid the introduction of complex aberration correction optical elements, and ensure the versatility, multifunctionality, and scalability of the overall system.

A snapshot spatial dimension spectral polarization integrated imaging system and a design method thereof are provided. An objective lens generate an image of a target on a DMD; the DMD is disposed on a focal plane of the objective lens and connected to the computer; the computer controls an encoding matrix loaded on the DMD to encode information; the light is reflected to the primary mirror after being encoded, and then is reflected by the primary mirror to the convex grating for dispersion; the light is then reflected to the third mirror; an encoded image is produced on the micro polarizer array detector; polarization channel coding is completed; the micro polarizer array detector is connected to the computer; and the computer resolves compressive spectral polarization image based on spectral polarization coding data cube obtained on a target surface of the micro polarizer array detector.

This invention discloses a pose calibration device for a surface shape detection equipment, belonging to the field of precision optical measurement technology. Its purpose is to solve the technical problem of low pose monitoring accuracy in existing surface shape detection equipment. The fiber optic connector assembly outputs a laser beam provided by a laser control assembly. The laser beam passes sequentially through a No. 2 reflecting mirror assembly, a beam splitter assembly, and a No. 1 reflecting mirror assembly before being incident on a beam splitter assembly. The reflected light from the beam splitter assembly passes through a collimating and expanding primary mirror before being incident on the device under test. The laser beam reflected by the device under test passes through the collimating and expanding primary mirror before being incident on the beam splitter assembly and split into a transmitted beam and a reflected beam. The transmitted beam passes through a No. 5 reflecting mirror assembly and a No. 4 reflecting mirror assembly before being incident on a projection screen assembly, forming a light spot image. The coordinates of the light spot image are detected by a pose monitoring camera assembly. The reflected beam passes through a No. 1 reflecting mirror assembly, a beam splitter assembly, a No. 3 reflecting mirror assembly, and an aperture assembly before entering a diffraction light spot acquisition camera assembly.

This invention discloses a lightweight structure for a laser-radio integrated communication payload for microsatellites, belonging to the field of satellite payload lightweighting technology. The invention includes a mirror body and a substrate. Multiple honeycomb holes are evenly distributed on the back of the mirror body, and triangular ribs are provided at the intersections of these holes. A support ring is fitted to the outer edge of the mirror body, and three positioning holes and nine mounting holes are evenly distributed on the outer surface of the support ring. By evenly distributing hexagonal honeycomb holes on the back of the mirror body, the weight of the mirror body is significantly reduced. By using novel lightweight materials for the mirror body, substrate, and support, the thermal stability of the primary mirror structure is improved while maintaining structural rigidity. This reduces surface distortion while significantly compressing the weight of the primary mirror structure, achieving further optimization compared to traditional lightweighting solutions. This results in the optimization of the satellite payload structure for extreme lightweighting, ultra-stable thermal performance, and high dynamic rigidity.

The utility model discloses a superlens light splitting imaging system, the optical elements of which comprise two biconvex lenses, an aspheric reflector bent towards the light incident direction and a reflective plane dispersion superlens, and the aperture diaphragm of the system is arranged at the reflective plane dispersion superlens. After passing through the entrance slit, incident light is transmitted, passes through the first biconvex lens and is reflected by the aspheric reflector, and reflected light enters the reflective plane dispersion super lens, enters the aspheric reflector after being split by the reflective plane dispersion super lens, is reflected by the aspheric reflector and reaches the detector through the second biconvex lens. The primary mirror of the spectroscopic imaging system provided by the utility model adopts a free-form surface shape, and the reflection-type plane dispersion super lens with a square titanium dioxide nano-column unit structure with a sub-wavelength scale is used as a spectroscopic element, so that the spectroscopic imaging system has the advantages of high spatial and spectral resolution, small system size and the like, can be used in the fields of hyperspectral detection of unmanned aerial vehicles and the like, and has wide application prospects. The application prospect is wide.

A motion tracker arrangement for motion tracking of a body part of a subject in a scanning scene of a scanner, comprising a mirror arrangement with at least one primary mirror; an imaging arrangement with at least one imaging device; and a computer system. The mirror arrangement is adapted for redirecting light reflected from a target surface region of the subject. The imaging arrangement is adapted to receive light reflected by the mirror arrangement towards the imaging arrangement, wherein the redirected light comprises at least two portions of light representing at least a part of the target surface region. The imaging arrangement is adapted for recording consecutive digital images of the light portions and for generating and transmitting consecutive image data sets representing the digital images to the computer system. The respective portions of light have different travelling paths. The computer system is configured for processing the image data sets and for generating 3D data representing at least a portion of the target surface region.

The invention relates to the technical field of computational optical imaging, in particular to a diffraction and light field fused hyperspectral imaging system and method. The system adopts a snapshot structure in which a diffraction optical channel and a panchromatic imaging channel are parallel; the diffractive optical channel acquires aliasing spectrum light field information including space and angle information through the axial dispersion characteristic of the diffractive primary mirror and the light field imaging component; and the panchromatic imaging channel synchronously acquires a high-spatial-resolution panchromatic image. The method comprises the following steps of: performing depth estimation on aliasing spectrum light field information by using a panchromatic image as spatial structure prior to obtain a scene depth map; determining the position of a refocusing plane according to the scene depth map and diffraction dispersion characteristics, carrying out digital refocusing, and generating a fuzzy spectrum slice; and finally, by taking the panchromatic image as a spatial constraint, decoupling and reconstructing a hyperspectral data cube through joint deconvolution operation. According to the invention, a mechanical scanning link is eliminated, and the system stability and the imaging efficiency are obviously improved.