707 results about "Telescope" patented technology

The invention discloses a star map registration method based on a remote optical image, relates to the technical field of image processing, and solves the problems that the existing method is multi-oriented to a single telescope, most of the single telescope is aligned at a star point level, and the robustness is insufficient when parallax, distortion, optical difference and background pollution exist in remote multi-station imaging. The method comprises the following steps: acquiring a remote star map and extracting a star point centroid; angular distance calculation and triangle construction; registering the centroids of the star points in the whole image; performing similarity transformation and homography estimation; and carrying out sub-pixel refinement and full image registration. According to the invention, dual registration of star point centroids and pixel coordinates can be realized for star maps shot by a plurality of telescopes in different places, and meanwhile, a high-quality registration reference can be provided for subsequent three-dimensional information acquisition of a space target and identification and positioning of the space target.

The invention discloses a telescope parameter efficient optimization method and system based on a Bayesian algorithm and a fluctuation optical TTL coupling noise calculation model, and aims to solve the problem that a fluctuation optical high-precision calculation module is used for improving TTL coupling noise calculation precision in an existing telescope parameter optimization method. And due to frequent calling of a high-time-consumption module, the optimization time is sharply increased, and the efficient design requirement of a space gravitational wave detection task is difficult to meet. According to the method, on the basis of the principle of a Bayesian optimization algorithm, potential optimal to-be-evaluated telescope parameters are searched through an agent model, a collection function and the optimization function of Zermarkes software; and calculating TTL coupling noise of the telescope to be evaluated by combining a light field propagation calculation method based on a wave optics theory with a light field-phase resolving method, carrying out iterative optimization on telescope parameters, and outputting optimal TTL coupling noise and optimal telescope optical parameters.

The invention belongs to the technical field of telescope manufacturing, and discloses a large-view-field telescope optical system which is characterized in that a first objective lens, a second objective lens, a third objective lens, a focusing lens, a semi-pentaprism, a roof prism, a first eyepiece lens, a second eyepiece lens and a third eyepiece lens are sequentially designed from the object side to the image side in the optical axis direction. According to the optical system, only the ten lenses have diopters, the requirement for the field of view of 6.7 degrees under the 8-fold condition is met, and the exit pupil distance reaches 22.6 mm.

The invention discloses an intelligent telescope scenery image acquisition and processing system based on artificial intelligence, which relates to the technical field of image communication and comprises a multi-telescope collaborative acquisition and fusion module, a distributed networking module, a content perception compression and transmission module, a feature encryption isolation module and a terminal-cloud collaborative communication module. According to the invention, through an integrated architecture design of multi-mirror collaborative acquisition fusion, distributed networking, content awareness compression transmission, feature encryption isolation and end-cloud collaborative communication, full-process collaborative optimization of scenery image acquisition, transmission, encryption and end-cloud interaction is realized. The integrity of image acquisition, the adaptability of transmission, the security of data and the efficiency of end-cloud collaboration can be remarkably improved, so that the problem that links of acquisition, transmission, encryption and end-cloud collaboration in an existing intelligent telescope image acquisition and processing system are split can be solved; therefore, the technical problems of poor image quality, low transmission efficiency, large data safety hidden trouble and poor terminal-cloud interaction adaptability are solved.

The invention discloses a planetary atmospheric trace gas spectrum telemetering and in-situ fusion detection system and method, and belongs to the technical field of deep space exploration. The detection system has a telemetering mode and an in-situ detection mode, and comprises a telescope module, a laser light source module, a heterodyne spectrum telemetering module, an in-situ absorption spectrum module, a gas sampling and enriching module and a signal acquisition, processing and control module. In the on-orbit stage, a heterodyne spectrum telemetering module is adopted, and a laser light source and sunlight signals are subjected to frequency mixing for atmospheric component telemetering; and after the detector enters an atmospheric descending section, the in-situ absorption spectrum module performs in-situ absorption spectrum measurement by utilizing the detection light of the same laser light source. By performing space-time fusion and joint inversion on the data acquired in the two modes, coherent detection from large-range general survey to fixed-point detailed survey is realized, the problems of load separation of telemetering and in-situ detection and difficulty in data fusion are solved, and the detection efficiency, the data consistency and the integration level of the system are greatly improved.

The invention discloses a sighting point track measuring method of a sighting telescope. The method comprises the following steps: acquiring at least one sighting scene image comprising a light spot position on a target; for each aiming scene image in the at least one aiming scene image, intercepting a region of interest in each aiming scene image according to the proportion of the light spot pixel number in each aiming scene image to obtain at least one region of interest; and determining the aiming point track according to the at least one region of interest and the firing action of the shooting body. According to the method, the region of interest is dynamically determined according to the proportion of the number of light spot pixels in the first aiming scene image, precise matching with target features can be self-adapted, further, row-column accumulation operation is performed on pixels higher than the proportion, background interference is effectively inhibited, track core features are reserved, and meanwhile, the accuracy of the target features is improved. And the redundant calculation amount is greatly reduced.

The invention discloses a large-aperture telescope shafting angle detection method based on an arc grating encoder. The method comprises the following steps of: tensioning and mounting a linear grating ruler along the circumference of a shaft system turntable to form an arc grating body; n reading heads are uniformly arranged along the circumference of the rotation direction of the shaft system, the rotation position information of the shaft system is read, the effective range of the arc grating is calculated and converted into angle information, and the resolution of the arc grating is calculated; installing a full-circle grating, obtaining the detected shafting rotation position information, comparing the detected shafting rotation position information with the arc grating angle detection information, and verifying the correctness of the position information obtained by the arc grating. The arc grating is used for replacing an angle measurement grating, the measuring range and the resolution of the arc grating can be accurately obtained, the correctness of information obtained by the arc grating is verified through the concentric-shaft full-circle grating, the closed-loop effect does not exist, the machining difficulty is low, meanwhile, the length of the grating ruler can be selected according to the rotation range of a shaft system, and the measurement precision is high. And the installation and adjustment difficulty is reduced.

The invention discloses a space-based double-satellite asynchronous detection multi-target correlation positioning system and method, the system comprises space-based optical satellites and a central processing unit, each space-based optical satellite is equipped with a large-view-field optical electro-telescope, and the large-view-field optical electro-telescope is used for carrying out image acquisition on a space target; and the central processing unit comprises a computer, the computer is in communication connection with the space-based optical satellite, and an image processing module, an angle measurement data generation module, a data association module and a target positioning module are integrated in the computer. According to the characteristics of space-based double-star asynchronous observation, a complete process from image processing, angle measurement data generation, time series data association to final positioning is designed, and the method is particularly suitable for monitoring and positioning a large number of space non-cooperative moving targets; by introducing time registration and sequence geometric consistency judgment, the association problem caused by asynchronous double-star observation time is effectively solved, and the accuracy and robustness of data association in a multi-target scene are improved.

The invention discloses a wide-temperature-range adaptive medium-wave infrared slit-free spectrometer, and solves the technical problems that the energy consumption of the slit-free spectrometer is high and the size and the weight are difficult to miniaturize due to the fact that an integral refrigeration method needs to depend on large refrigeration equipment in the prior art, and the imaging quality of the slit-free spectrometer is seriously deteriorated due to a local refrigeration method. Comprising a front telescope system group, a light splitting system group, a plane mirror, a relay system group and a refrigeration type detector optical system group which are sequentially arranged along the propagation direction of an object space imaging light beam. The movable distance of the detector is set in the range, so that the slit-free spectrometer adapts to the change of the temperature gradient of the first temperature interval and the second temperature interval in the range, and the imaging quality is high.

The invention discloses a telescope installation and adjustment method, device and equipment and a medium, and relates to the technical field of optical installation and adjustment, and the method comprises the steps: obtaining an ideal wave surface diagram of a telescope to be installed and adjusted at a target field point through optical simulation software, and adding a plurality of misalignment amounts to the optical simulation software, extracting a plurality of corresponding maladjustment wavefront diagrams at the target view field point; according to the plurality of misalignment amounts and the plurality of misaligned wavefront diagrams, determining wavefront diagram sensitivities corresponding to the plurality of misalignment amounts, and combining the wavefront diagram sensitivities to obtain a wavefront diagram sensitivity matrix; an interferometer is used for collecting an actually-measured wave surface diagram of the telescope to be installed and adjusted at the target view field point, and wave surface diagram variable quantities caused by a plurality of misalignment quantities are determined through the actually-measured wave surface diagram and the ideal wave surface diagram; and based on the wave surface diagram variable quantity and the wave surface diagram sensitivity matrix, establishing a relationship between the target misalignment quantity vector and the actually measured wave surface diagram so as to determine the target misalignment quantity vector, and carrying out adjustment operation on the telescope to be adjusted according to the target misalignment quantity vector.

The invention relates to the technical field of space telescope calibration, in particular to a telescope pointing calibration method based on optical fiber interconnection, which comprises the following steps: providing reference light beams in different directions, enabling each lens to correspondingly receive the reference light beams by adjusting the lens pointing, splitting the reference light beams received by the lenses through an optical splitter, and obtaining a split beam; one beam is aligned and corrected through a camera, and the other beam is coupled into an optical fiber to record direction information; the calibration light beams are reversely emitted by the optical fiber through the optical switch and are emitted by the lens, each reference light beam in the known direction is reproduced, a reference light field is formed, the telescope to be calibrated is placed in the reference light field, the miss distance of each calibration light beam in the known direction on the mirror surface of the telescope to be calibrated is measured, and the pointing error is calculated and corrected according to the miss distance. The optical fiber network is used for establishing the unique mapping relation between the space direction and the optical fiber channel, miss distance measurement is carried out through dynamic time-sharing reproduction, and the problems of mechanical accumulative errors and the like existing in a traditional mechanical calibration method are solved.

A work platform includes a plank which telescopes to a desired width. The work platform includes a first leg assembly rotatably attached adjacent to a first end of the plank. The work platform includes a second leg assembly rotatably attached adjacent to a second end of the plank. The work platform includes a first linkage attached to a first leg of the first leg assembly. The first linkage may be a first hook or a first strap assembly for securing the work platform to a first support structure. A method for using a work platform. A method for producing a work platform.

The invention relates to the technical field of ocean detection equipment, and particularly provides an ocean laser radar system and a seawater multi-parameter detection method. The system comprises a laser emission subsystem, an optical receiving subsystem and a signal acquisition and control subsystem. The laser emission subsystem can emit multi-wavelength pulse laser to seawater; the optical receiving subsystem adopts a double-receiving telescope structure, respectively receives scattering and fluorescence signals with different properties, and realizes multi-channel signal separation through light splitting, light filtering and polarization light splitting elements; and the signal acquisition and control subsystem realizes synchronous acquisition and processing of multi-channel data. The system can synchronously invert water optical parameters, water particulate matter depolarization ratio and color ratio, chlorophyll concentration, suspended load concentration and other multi-parameter profiles, and is suitable for marine environment unattended monitoring of a fixed platform and a mobile platform.

An optical system of binoculars includes a first object biconvex lens of positive focal power, a second object meniscus lens of negative focal power, a third object meniscus lens of positive focal power, a fourth object meniscus lens of negative focal power, a half pentaprism, a roof prism, a first eyepiece biconcave lens of negative focal power, a second eyepiece biconvex lens of positive focal power, a third eyepiece biconvex lens of positive focal power, a fourth eyepiece meniscus lens of negative focal power, and a fifth eyepiece meniscus lens of positive focal power. These are sequentially arranged along an optical axis direction from an object side to an observation side. When focusing, the fourth object lens moves along the optical axis direction. The binoculars include an exit pupil diameter range of 3.5 mm-4.5 mm, an exit pupil distance range of 15-18 mm, and a field angle range of 6°-6.5°.

The invention belongs to the technical field of telescope manufacturing, and discloses a small-caliber large-view-field telescope optical system which is characterized in that an objective lens first lens, an objective lens second lens, an objective lens third lens, a focusing lens, a semi-pentaprism, a roof prism, an eyepiece first lens, an eyepiece second lens and an eyepiece third lens are sequentially arranged from the object side to the image side in the optical axis direction. According to the optical system, a large field of view of 6.7 degrees can be realized under the condition of 10 times.

The application discloses a disk medium high-energy ultra-short pulse laser regenerative amplifier based on CPA technology, comprising: a femtosecond laser seed light source for providing femtosecond seed light; a chirped Bragg fiber grating for expanding the femtosecond seed light into nanosecond laser pulses; an optical coupling input and output device for coupling input of the nanosecond laser pulses and coupling output of the nanosecond laser pulses after amplification processing; a regenerative amplification laser cavity for regenerative amplification processing of the coupled-in nanosecond laser pulses; the optical coupling input and output device comprises a fiber coupling collimation module, an optical isolator, a first 1 / 2 wave plate and a thin film polarizer; the regenerative amplification laser cavity comprises a Pockels cell, a second 1 / 2 wave plate, a first reflection module, a second reflection module, a first telescope module, a second telescope module, a first disk gain medium, a second disk gain medium and a third reflection module; the regenerative amplifier can realize high-repetition-frequency and high-pulse-energy laser pulse output.

An illumination system 700 having a first and second telescope each comprising a respective array of micro-lenses 604, 606 and 704, 706 which are optically coupled to form respective arrays of micro-l

1. Name of the product in this design: Binoculars (1937). 2. Purpose of this design: for civilian sightseeing. 3. The key design elements of this product are the combination of shape, pattern, and color. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The design for which protection is sought includes color.

Improved systems and methods for optical communications are provided that have reduced size, weight, and power use. Such system and methods can find, use between satellites or other distant systems that are in significant relative motion. Such embodiments include the use of a diamagnetically levitated magnetic actuator or other actuator to control the orientation of an optical phased array (OPA), thereby aiming the array at distant target systems. An OPA has reduced size and mass relative to traditional telescopes, providing similar beam apertures while having reduced size, weight, and cost of the OPA and associated actuators. The actuator allows the OPA to omit, or to include fewer, phase shifter elements than previous steerable OPA telescopes, reducing complexity', cost, and power requirements.

This invention discloses a design method for a plane-multiplying relay structure of a wide-spectrum, wide-swath hyperspectral imaging telescope, relating to the field of optical design technology. The method includes establishing a model for realizing a controllable aberration-multiplying relay structure. This model consists of four closely related parts: field segmentation, plane multiplication, telecentricity adjustment, and field curvature / distortion adjustment. Based on this model, the interrelationships between the number of field segmentations, plane multiplication rate, image-side telecentricity adjustment, field curvature / distortion adjustment, and relay structure parameters of the hyperspectral imaging system are clarified. Based on these parameter relationships, a design method for the initial relay structure is further proposed. Using the plane-multiplying relay structure of this invention, wide-spectrum, wide-swath hyperspectral imaging is achieved, breaking through the technical bottleneck of traditional telescopes' difficulty in connecting multiple large-field-of-view spectrometers and large-scale detectors.

The invention relates to the technical field of optical instruments, and provides a dimple telescope system based on a double-phase regulation and control super lens and a design method thereof, and the dimple telescope system comprises an objective lens, an eyepiece, a first super lens and a second super lens. The first super lens is arranged at the imaging plane position of the objective lens, is a local phase modulation type super lens and is used for implementing local phase modulation on an imaging area; and the second super lens is arranged at the pupil entrance plane position of the eyepiece, is a continuous phase type super lens, and is used for performing phase compensation and wavefront matching on the wavefront passing through the eyepiece. According to the invention, the double-phase collaborative design of the image plane local phase modulation superlens and the entrance pupil plane continuous phase compensation superlens is introduced into the Galileo telescope system, so that the unification of local high-resolution fovea imaging in the view field and the stability of the full-view-field image quality is realized on the premise of not changing the original optical path structure; and the aberration interference problem caused by local modulation of a single super lens is avoided.

The utility model relates to the technical field of optical lens processing, and discloses a telescope lens gluing and pressurizing device which comprises a moving block, the moving block is slidably arranged on a transverse screw rod in a threaded mode, and a pressurizing assembly comprises a hemispherical block, a two-way screw rod, a pressurizing plate, an arc-shaped frame and a pressurizing frame. The two-way screw rod is rotatably arranged on the mounting box, the two pressurizing plates are installed at the upper end and the lower end of the two-way screw rod in a threaded mode respectively, the four arc-shaped frames are slidably arranged at the four corners of the pressurizing frame respectively, and the pressurizing frame is fixedly arranged at the bottom of the pressurizing plate on the upper side; the bidirectional lead screw drives the hemispherical block and the pressurizing frame to move relatively at the same time, the part, exposed on the top surface of the mounting box, of the hemispherical block is used for supporting lenses with different curvatures, the pressurizing frame is matched with the arc-shaped frame to fit and press the curvature of the top surface of the lens, errors caused by insufficient edge pressure are avoided, and the lenses are glued more tightly.

The invention discloses a telescope main reflection surface shape real-time evaluation and on-demand adjustment integration method. An adjustment reference attitude and a reference temperature field are used as error zero points, and the whole process is calculated based on relative quantity. A gravity deformation database, a three-dimensional Chebyshev (or Legendre) temperature basis function unit response deformation database and a temperature control actuator unit temperature change influence matrix database are established offline. Regular least square fitting is performed on temperature sensor data on line to obtain a temperature coefficient, linear combination is performed to obtain relative displacement caused by temperature, the relative displacement and relative displacement caused by gravity are superposed to form relative node coordinates, and a reference surface is fitted to output a surface shape relative RMS. And solving quadratic programming based on first-order linearization under temperature upper and lower limits and smoothness constraint to obtain an actuator temperature increment instruction, and issuing the actuator temperature increment instruction, thereby realizing closed-loop compensation without online thermal-structural coupling and absolute morphology measurement.

The utility model relates to the technical field of single-tube telescopes, and discloses a portable single-tube telescope, the single-tube telescope adopts a supporting integrated structure arrangement, a protective cover structure is installed and connected by using a telescopic support arm structure, the structure is simple, the layout is compact, the structural volume is small after the single-tube telescope is stored, and the single-tube telescope is convenient to carry. The cover structure is composed of a connecting frame seat and a protective turning cover, the protective turning cover is installed on the front portion of the connecting frame seat in an overturning mode through cooperation of a rotating shaft support and a limiting clamping block limiting fixed shaft, when the device is held and used, the supporting arm does not need to be unfolded, the objective lens can be opened only through overturning, and holding use and fixed-point supporting work of the device are completed; the protective flip cover serves as a bottom support structure, fixed-point placement supporting of the telescope body can be achieved through matched supporting of the flip supporting arm and the telescopic supporting arm, the telescope body can meet different work use requirements of movable holding and fixed-point placement, and the use flexibility and the work scene applicability of the device are greatly improved.

The invention relates to a holding arrangement (24) for a telescope (10), which is designed in particular for optical communication in space, in which a solar filter (16) is held in an opening (28) of a housing (20) of the telescope (10), through which light used for optical communication can shine into the housing (20), wherein a damping device (26) with at least one damping element is provided, by means of which the solar filter (16) is supported radially and axially against the housing (20) and vibration-damped.

The embodiment of the invention provides a method and a device for suppressing a false alarm of a ground-based telescope for observing a fixed star, and a medium, and the method comprises the steps: analyzing a constructed false alarm data set; and characteristic coefficient data such as a fixed star speed approaching coefficient, a fixed star speed direction approaching coefficient, a fixed star eccentricity approaching coefficient, a fixed star phase angle approaching coefficient and a broken frame penalty coefficient corresponding to the false alarm result are determined, and fixed star false alarm in the detection result is identified in combination with a PSO-SVM identification algorithm. According to the method, the problem that a fixed star and a space target cannot be distinguished by adopting the same threshold value in different scenes in space target detection, and then false alarm is caused is solved, the detection accuracy of the fixed star false alarm is improved, and the fixed star false alarm in false alarm data is effectively inhibited.

Mitigation of erosive effects of atomic oxygen encountered by telescope systems deployed in low earth orbit (LEO is effected by providing an array of multiple very small projections on the interior surface of an open-ended tubular metering shell extending forwardly from a mirror to be protected. The projections are made of material that is geometrically configured to deflect AO atoms one or more times within the shell at angles that ultimately direct the atoms away from the mirror surface and back out through the forward end of the shell.

To provide highly reliable lens image stabilization units and image-stabilized telescopes. [Solution] The lens vibration isolation unit comprises a position limiting cover and a lens vibration isolation structure mounted inside the position limiting cover. The position limiting cover comprises a bottom cover 20 and an end cover 10 connected to the bottom cover, and both the bottom cover and the end cover are provided with through holes corresponding to the position of the vibration isolation lens in the lens vibration isolation structure. The lens vibration isolation structure comprises a main control circuit board 45 and a movable unit 41 to which a vibration isolation lens 47 is attached. The main control circuit board is fixedly connected to the bottom cover and is provided with through holes corresponding to the vibration isolation lens. The movable unit is connected to the bottom cover via a tension spring 30 so as to separate the movable unit from the main control circuit board and so as to allow the movable unit to move relative to the main control circuit board. The vibration-isolating telescope has the advantages of high vibration isolation accuracy, compact size, and excellent cost performance, as it is equipped with a lens vibration isolation unit.

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

The invention discloses a double-barrel low-light telescope and a use method thereof, and relates to the technical field of telescopes, the double-barrel low-light telescope comprises a first lens barrel and a second lens barrel, the first lens barrel and the second lens barrel are rotatably connected through a sleeve assembly, a shaft rod assembly is connected with the sleeve assembly, a locking assembly is arranged on the sleeve assembly, and the locking assembly locks and limits the shaft rod assembly. And the locking assembly is arranged on the shaft rod assembly, and the locking assembly is matched with the sleeve assembly to lock and limit the first lens cone and the second lens cone. According to the invention, the first lens cone, the second lens cone, the sleeve assembly, the shaft rod assembly, the locking assembly and the locking assembly are used in cooperation, and the sleeve assembly, the shaft rod assembly and the locking assembly can be stably installed between the first lens cone and the second lens cone, so that the first lens cone and the second lens cone are used in a combined manner, and the locking assembly is extruded. Therefore, the first lens cone and the second lens cone can be quickly split, and the first lens cone and the second lens cone can be independently used.