69 results about "Astronomical telescopes" patented technology

The invention provides a space terahertz telescope pointing calibration method, medium and equipment, and belongs to the technical field of astronomical telescope observation, and the method comprises the steps: obtaining observation sampling point frequency spectrum data of a large sampling interval based on an OTF observation mode; based on the rough calibration model, processing the spectrum data of the large sampling spacing, and determining a preliminary deviation between a TS electric axis and an optical axis; carrying out OTF observation of small sampling spacing under the condition of initial deviation information and obtaining corresponding spectrum data; processing the spectrum data of the small sampling spacing based on a fine calibration model to obtain fine deviation of a terahertz electric axis and an optical axis; and under the condition of fine deviation, TS pointing precision verification is carried out. The implementation of the method provides a feasible solution for the actual demand of CSST TS in-orbit calibration, and effectively supports the calibration processing of CSST TS scientific observation data.

This invention relates to a clamping fixture for processing astronomical telescope lenses, comprising: a mounting base, a mounting hole on the left side of the mounting base, a mounting groove on the right side of the mounting base, a threaded hole on the upper left side of the mounting base, and an insertion hole on the upper left side of the mounting base, wherein a limiting ring is fixedly installed inside the insertion hole. This clamping fixture for processing astronomical telescope lenses, by setting a clamping plate, inserts the clamping plate into the lens hole during lens processing, placing the lens on the right side of the clamping base, with the outer edge of the lens inside the limiting groove. At this time, the iron piece at the left end of the clamping plate is then attracted to the clamping post, thereby fixing the lens by a permanent magnet. Using magnets makes installation and removal more convenient, and the attraction is firm, preventing easy shaking and not affecting the normal processing of the lens, making it more convenient to use.

The invention discloses a high-precision control method for optical parameters of an off-axis spliced sub-lens of a primary lens of a large astronomical telescope, and belongs to the field of advanced optical manufacturing and detection. According to the method, precise adjustment of a detection light path is achieved through different diffraction function areas of computer generated holography (CGH), and high-precision control over the curvature radius and the off-axis amount of an off-axis sub-mirror is achieved by combining distance measurement of a laser tracker and angle measurement of a theodolite. The method specifically comprises three stages of inspection light path coarse adjustment, fine adjustment and light path parameter measurement and processing, optical element space attitude adjustment is guided through a diffraction reference point of the CGH, and finally off-axis sub-mirror surface shape and optical parameter information are obtained. According to the invention, the problem of installation and adjustment precision in the detection of the large off-axis aspheric reflector can be effectively solved, and reliable technical support is provided for the manufacturing of the primary mirror and the spliced secondary mirror of the astronomical telescope.

The utility model relates to the technical field of visual displacement monitoring, and provides an astronomical telescope bracket for remote visual displacement monitoring, which comprises an adapter plate assembly, a rotating fulcrum, a lifting sliding table assembly, a rotating sliding table assembly and a bottom plate which are sequentially arranged from top to bottom, the adapter plate assembly is hinged to the lifting sliding table assembly through a rotating fulcrum. The two sets of rotating fulcrums and the two sets of lifting sliding table assemblies are arranged at intervals in the length direction of the adapter plate assembly. The lifting sliding table assemblies are in one-to-one correspondence with the rotating fulcrums; the rotary sliding table assembly is connected between the lifting sliding table assembly and the bottom plate; and the bottom plate is used for realizing connection with a mounting position. According to the utility model, through the cooperation of the two groups of rotating fulcrums and the lifting sliding table assembly, the precise adjustment of the pitching angle of the astronomical telescope is realized, and the stability of the astronomical telescope in the pitching direction is improved; 360-degree precise adjustment in the horizontal direction is achieved through the rotary sliding table assembly, the imaging precision is ensured, and the requirement for engineering practicability is met.

The application belongs to the technical field of telescope manufacturing, and discloses an astronomical telescope objective lens optical system with an ultra-long working distance, which is characterized in that: an objective lens first lens, an objective lens second lens, an objective lens third lens, an objective lens fourth lens and an objective lens fifth lens are sequentially arranged along the optical axis direction from the object side to the image side; the focal length of the optical system is 450.175 mm, the entrance pupil diameter is 90 mm, the field of view is 3.488°, the F number is 5, the total length of the optical system is 428.58 mm, and the working distance is 224.38 mm.

The invention discloses a horizon astronomical telescope pointing error correction method based on machine learning. The method comprises the following steps: recording fixed star data; constructing a telescope rack pointing model, calculating a model coefficient, performing coarse correction on a new observation target, accumulating observation data, and preprocessing the observation data; training the preprocessed training set data by using an XGBoost regression model, predicting condition parameters of a new observation target by using a trained error prediction model to obtain normalized azimuth angle deviation and elevation angle deviation predicted values of the new observation target, and carrying out reverse normalization processing on the predicted values to obtain an actual rack deviation angle; and superposing the rough correction deviation angle and the actual rack deviation angle to serve as a final offset to be injected into a telescope rack tracking program so as to realize correction of a pointing error. According to the invention, the pointing error can be within a very small range, and the pointing precision of the horizon telescope can be effectively improved.

The utility model provides a moving balance structure of a heavy objective lens moving focusing type astronomical telescope, which relates to the technical field of astronomical telescope devices and comprises an objective lens barrel, a rack, a focusing seat, a focusing barrel, a rear seat, a shell and a supporting seat. The orthographic projection, corresponding to the optical axis of the objective lens barrel, of the rack is installed on the bottom wall of the objective lens barrel in the axial direction, the focusing base is in a sleeve shape and coaxially installed on the outer wall of the interface side of the objective lens barrel, the focusing barrel is installed at the bottom of the focusing base, a gear is installed in the focusing barrel and meshed with the rack, and the two ends of the gear are connected with a bearing and a focusing wheel installed at the end of the focusing barrel respectively. The rear seat is installed on the outer side of the objective lens barrel and coaxially connected with the focusing seat and the shell, the supporting seat is coaxially installed on the outer wall of the front side of the objective lens barrel and connected with the front end of the shell, and the problem that a traditional heavy objective lens moving focusing type astronomical telescope is not smooth in focusing can be solved.

According to the invention, glass is replaced by transparent plastic materials such as transparent resin with very good light transmission to manufacture large and ultra-large objective lens convex lenses, so that large and ultra-large telescopes can be easily manufactured.

1. The name of the design product: toy (astronomical telescope 2). 2. The use of the design product: toy for children to play. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: combined state perspective view 1.

The utility model relates to the technical field of astronomical telescopes, in particular to a large-aperture high-precision Cassegrain catadioptric astronomical telescope, which comprises a lens cone, a primary reflector, a secondary reflector and a light-transmitting tube, the primary reflector and the secondary reflector are respectively arranged on two sides in the lens cone, the light-transmitting tube is arranged along the axial direction of the lens cone, the light-transmitting tube and the secondary reflector are coaxially arranged, and the primary reflector and the secondary reflector are coaxially arranged. The light-transmitting pipe is provided with a light path channel which is through along the axial direction of the light-transmitting pipe; and the focusing tube is arranged on the light transmission tube in a sleeving manner, and the focusing tube can slide in the axial direction relative to the light transmission tube. According to the large-aperture high-precision Cassegrain catadioptric astronomical telescope provided by the utility model, the axial movement of the main reflector is realized by driving the focusing screw shafts which are symmetrical on the two sides through the synchronous belt, so that the stress is balanced, and the inner wall of the focusing tube is attached to the outer wall of the light-transmitting tube, so that the focusing tube linearly moves by taking the light-transmitting tube as a guide, and the focusing effect is improved. And imaging drift is not easy to occur during focusing.

The invention discloses a telescope real-time control method and system based on a synchronous time service and memory sharing mechanism, the core of the method is to construct a hard real-time, high-synchronization and low-delay distributed control system for a telescope platform, and the method specifically comprises the following steps: constructing a real-time computing platform; constructing a high-precision time synchronization system; constructing a global shared memory network; defining and initializing a shared memory data area; the deterministic control logic based on the unified time reference is realized; and deploying a watchdog and a health monitoring mechanism. The method has a wide application prospect in the field of precise motion control of astronomical telescopes and the like. According to the method, the problems of poor real-time performance and low synchronization precision caused by network delay, clock asynchronization and process scheduling uncertainty of an existing telescope control system are solved.

1. The name of the design product: astronomical telescope. 2. The use of the design product: the design product is used for observing space stars, celestial bodies or distant scenes. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

This application provides a transient source identification method, apparatus, device, storage medium, and program product, which can be applied to the field of astronomical information technology. The method includes: projecting an acquired observation image onto a HEALPix grid at the target level to obtain multiple tiles; performing pixel-by-pixel difference between tiles at the same location and reference tiles, identifying at least one tile from the multiple tiles whose average difference pixel value is greater than a preset average value as the difference tile, where the average difference pixel value represents the average difference between the tile and the corresponding reference tile; based on the coordinates of the difference tiles, using spatial indexing to obtain all image blocks covering the difference tiles and determining transient source candidates, wherein all image blocks come from various types of astronomical telescopes; and performing photometry on the image blocks corresponding to the transient source candidates to determine the target transient source. This method can quickly and accurately identify transient sources.

The application discloses a method for solving the misalignment of an astronomical telescope optical system based on a de-polarization coefficient, and the steps of the method comprise the following steps: 1) defining the misalignment of the telescope optical system, and selecting an image point on an image plane of the telescope optical system; 2) obtaining a Mueller matrix and a de-polarization coefficient at different image points of the telescope optical system; and 3) iteratively optimizing and solving the misalignment of the optical system by using a particle swarm optimization algorithm. The misalignment of the telescope optical system is solved by using the de-polarization coefficient of the telescope optical system through the iterative optimization mode by using the particle swarm optimization algorithm, the misalignment of the optical system can be quickly obtained, and thus the misalignment of the telescope optical element can be corrected, and the image quality is improved.

The utility model provides an astronomical lens vibration fixture, relates to astronomical telescope production device technical field, including bottom plate, spacing block, support rod, press plate and fastening bolt, said bottom plate is provided with connecting hole, said spacing block is installed on the bottom plate in parallel interval to form a plurality of spacing group, every two adjacent spacing block constitutes one spacing group, and the fastening bolt is fixed on the bottom plate. The supporting rods are lead screws which are evenly and vertically installed on the bottom plate, the pressing plate is movably installed on the supporting rods and is opposite to the bottom plate, the fastening bolts are installed on the supporting rods above the pressing plate, and the problem that a vibration table of a traditional vibrator does not have a clamp for fixing an astronomical lens so that the lens can be rigidly connected with the vibration table can be solved.

The utility model discloses a reflection type astronomical telescope, which relates to the technical field of astronomical telescopes and comprises a lens cone, a main lens bracket and a movable frame arranged at one end of the lens cone and coaxially arranged on the inner side of the main lens bracket, a main lens is arranged on the movable frame, a plurality of elastic rings are arranged on the inner wall of the movable frame, and a plurality of first adjusting screw rods are arranged on the main lens bracket in a threaded penetrating manner. One end of each first adjusting screw rod is connected with the corresponding elastic ring; the pair of glasses has the beneficial effects that the angle of the movable frame is independently adjusted through the four first adjusting screw rods arranged on the main glasses frame, and the pointing direction of the main lens is accurately adjusted; three second adjusting screws of the auxiliary mirror bracket independently adjust the angle of the auxiliary mirror seat and accurately adjust the direction of the auxiliary mirror, and the two are matched to accurately align the optical axes of the main mirror and the auxiliary mirror, so that clear imaging is facilitated; the operation mode is simple and convenient, and the observation effect can be effectively improved.

The utility model provides a kind of unattended astronomical observatory data collection system, it includes: manned base, field data collection node, astronomical telescope array, data transfer device between astronomical telescope array and field data collection node carries out data transmission, with the liftable communication platform with optical fiber that field data collection node and manned base are communicated simultaneously connection.The system of the utility model replaces traditional wireless unmanned aerial vehicle by the liftable communication platform of optical fiber tethering, or it is used in cooperation with data transmission line, four-foot mobile platform, can stably establish data communication link in the area of complex terrain, without unmanned aerial vehicle frequent take-off and landing, overcome endurance problem, greatly reduce artificial dependence, improve system stability, security and data transmission efficiency, meet the continuous data collection needs of field astronomical observatory under unattended state, especially applicable to long-period observation task, high security data transmission demand field astronomical observatory environment.

The utility model provides an equatorial telescope adjusting device, which is arranged between a support frame and a telescope and comprises a connecting seat and an elevation angle adjusting component, the connecting base is connected to the supporting frame. The elevation angle adjusting assembly comprises a first elevation angle seat, a second elevation angle seat and a fine adjusting structure, the first elevation angle seat is rotatably connected to the connecting seat, and the rotating axis of the first elevation angle seat is horizontally arranged so that the relative elevation angle between the first elevation angle seat and the connecting seat can be adjusted; the second elevation angle seat is connected with the telescope, the second elevation angle seat is rotatably connected to the first elevation angle seat, and the rotation axis of the second elevation angle seat is horizontally arranged; the two ends of the fine adjustment structure are rotatably connected to the first elevation angle seat and the second elevation angle seat respectively, and the two ends of the fine adjustment structure can be relatively close to or far away from each other to adjust the relative elevation angle between the second elevation angle seat and the first elevation angle seat, so that the angle of the telescope can be adjusted quickly and accurately, the calibration operation of the astronomical telescope is simplified, and the calibration efficiency of the astronomical telescope is improved. And the control efficiency is improved.

A diffractive optic reflex sight (DORS) is provided for aiming devices in which a virtual image, such as a reticle, is produced and appears in the distance of a user's view when looking through the reflex sight. A light source illuminates a diffractive optical element (DOE) that includes a modulation pattern that generates a patterned illuminations corresponding with the virtual image. A reflective image combiner then reflects the patterned illumination so that the virtual image appears in the distance of the viewer's view. The DORS optical design system is mechanically and optically stable for precision aiming across a range of environmental conditions and in different use scenarios or applications including use in rapidly changing temperatures, varying light conditions, and a wide range of user proficiencies. The DORS optical design system is a readily manufacturable aiming and sighting device for a wide range of applications from handguns to astronomical telescopes.

The invention discloses a stretchable super-structure lens with an adjustable focus and high infrared band focusing efficiency based on a particle swarm optimization algorithm. The stretchable metamaterial lens is composed of periodic structures, each periodic structure comprises a substrate (1), and a plurality of metamaterial lens basic unit structures (2) are stacked on the substrates (1). The substrate (1) is made of a stretchable material PDMS, and the meta-lens basic unit structure (2) is made of a GaN material. The super-structure lens is simple in structure, simple in preparation process and low in material cost, the super-structure lens achieves the stretchable effect with the period ranging from 450 nm to 650 nm within the wave band of 780 nm to 880 n, the obtained focal lengths are 50.38 microns, 69.05 microns, 88.45 microns, 107.34 microns and 130.03 microns respectively, and the expected target focal length can be well achieved. Under the wave band of 780 nm to 880 nm, incident light of different wavelengths can be concentrated on one point, the super-structure lens shows good focusing performance, the super-structure lens can reach the focusing efficiency of 60% or above within the wave band of 780 nm to 880 nm, and the super-structure lens has a great progress space compared with an existing stretchable super-structure lens; the focus-adjustable stretchable super-structure lens provides an effective method for application of stretchable devices, and provides a new direction for design of future super-structure lenses, such as application in next-generation three-dimensional imaging, holographic projection and astronomical telescope systems.

1. The name of the design product: astronomical telescope. 2. The use of the design product: the product design is used for astronomical telescope. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. The name of the design product: astronomical telescope. 2. The use of the design product: for observing the starry sky and can take pictures. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: Design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The application relates to the technical field of mirror surface detection, in particular to an automatic detection device for a large-aperture reflecting astronomical telescope lens, which is used for detecting the imaging quality of a main mirror and comprises a workbench, an interferometer, a secondary mirror, a display, a positioning frame, a wedge block, a sliding seat and a lifting plate. The interferometer is installed on the inner bottom surface of the workbench, and the emission window of the interferometer faces directly upwards. The positioning frame is slidably connected to the workbench, and the positioning frame is coaxial with the emission window of the interferometer. The number of the wedge blocks is plural, and the wedge blocks are connected above the positioning frame. The sliding seat is rotationally connected to the workbench. The lifting plate is slidably connected to the sliding seat. The main mirror is driven to slide along the self axis, and the concave side edge of the main mirror is clamped by the inclined surface, so that the main mirror is aligned with the light source, and the accuracy of the imaging quality detection result of the main mirror is improved.

The utility model discloses telescopic mirror barrel nested structure of astronomical telescope, including front mirror barrel and rear mirror barrel, the downside interval fixed of front mirror barrel has two mounting plates, and the front end outside of two mounting plates is rotatablely connected with a connecting frame, and the middle part of connecting frame is equipped with adjusting mechanism with rear mirror barrel, and the rear end of connecting frame is detachably fixedly connected with two mounting plates, and adjusting mechanism includes the pivot rotatablely connected in the middle part of connecting frame, and the end of pivot is equipped with adjusting part, and the middle part is equipped with gear, and the downside of rear mirror barrel is fixed with the rack of gear cooperation, and the middle part of mounting plate is equipped with the avoidance slot for the pivot and gear, when the utility model needs to fine tune the length of telescopic mirror barrel, the rear end of connecting frame is fixed with mounting plate, then can adjust through adjusting mechanism, when needing faster and large amplitude telescopic mirror barrel length adjustment, thereby makes gear and rack separate, then can push and pull rear mirror barrel to adjust telescopic mirror barrel length, convenient and fast.

The utility model discloses an off-axis star guider, an astronomical telescope star guiding assembly and an astronomical telescope. The off-axis star guider comprises a connecting main body, a focusing device and a light path coupler, the focusing device is fixedly connected with the connecting main body, the light path coupler is movably matched with the connecting main body and the focusing device, the light path coupler is provided with a first connecting structure, and the first connecting structure is used for being detachably connected with a star guide camera. According to the astronomical telescope guide star assembly provided by the embodiment of the utility model, the focusing device is used as a part of the off-axis guide star device, can be used for focusing a guide star camera and can also be used for accurately adjusting the position of the prism or the reflector, and when the focusing device is used for adjusting the position of the prism or the reflector, the focusing effect is good. The off-axis star guider can be operated without being detached from a telescope and other equipment, other extra tools are not needed, the off-axis star guider is convenient to use, and the position of a prism or a reflector can be accurately known.

1. The name of the design product: astronomical telescope. 2. The use of the design product: multifunctional astronomical telescope for observing space stars, celestial bodies or distant scenes. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The application discloses a ground-layer adaptive optical system error analysis method, and relates to the technical field of astronomical telescopes adaptive optics, which is characterized in that: a first structure function of residual wavefront generated by un-compensated atmospheric turbulence error is calculated; a second structure function of residual wavefront generated by instrument error of the ground-layer adaptive optical system is calculated; the first structure function and the second structure function are linearly superposed to obtain a total performance structure function of the ground-layer adaptive optical system; a long-exposure optical transfer function is calculated according to the total performance structure function, and Fourier transform is performed on the long-exposure optical transfer function to obtain a point spread function of the ground-layer adaptive optical system; wherein the point spread function is used for analyzing error and performance of the ground-layer adaptive optical system.

The invention discloses an automatic focusing method for an optical fiber identification camera of a multi-target optical fiber spectrum astronomical telescope. The automatic focusing method comprises the following steps: 1) shooting an optical fiber light spot original picture of a set area on a focal plane of the multi-target optical fiber spectrum astronomical telescope by using the optical fiber identification camera; after the focusing ring is rotated anticlockwise for a single step length T, the original picture of the optical fiber light spot in the set area on the focal plane is shot again; 2) matching the center of gravity of the optical fiber light spots to obtain a plurality of matched light spots; respectively extracting each matched light spot and pixels around the matched light spots as light spot areas, normalizing the two light spot areas to 0-255 gray values, and then storing the two light spot areas as jpg pictures as jpg picture pairs of the same matched light spot; 3) inputting the jpg picture pair matched with the light spot into the deep learning model to predict the defocusing state of the camera, and outputting a defocusing amount, and 4) controlling a focusing assembly of the camera to rotate according to the defocusing amount to complete the focusing of the camera.

The invention discloses an astronomical telescope ground testing method, device and equipment and a medium, and relates to the field of space optical system ground testing, and the method comprises the steps: correcting a point source array image and a dark field image sequence; superposing the corrected dark field image sequence to generate a dark field image; deducting a dark field image from the corrected point source array image, and performing connected domain analysis on the image after deducting the dark field image based on the standard deviation of the dark field image to obtain a first connected domain and a second connected domain; removing the first connected domain from the image from which the dark field image is deducted to obtain a target point source array image; extracting a corresponding image block from the target point source array image according to the second connected domain, performing two-dimensional Gaussian fitting on the image block, determining a point spread function based on a fitting result, and generating a coordinate array by using a center coordinate corresponding to the point spread function; and extracting a target image block from the target point source array image according to the coordinate array, and completing the ground test of the astronomical telescope by using the target image block.

The utility model provides an astronomical telescope adapter ring dismounting structure, relates to the astronomical telescope accessory device technology field, and comprises an adapter ring and a handle, the front end of the adapter ring is provided with an astronomical telescope main lens interface, the rear end of the adapter ring is provided with a camera interface, the end portion of the camera interface is provided with a group of symmetrically arranged bayonets, the handle is in an I shape, and the handle is provided with a clamping groove. According to the adapter ring, the problems that the hand screwing part of a traditional adapter ring is too thin, and when the adapter ring is replaced, the adapter ring is difficult to detach can be solved.