53 results about "Optical space" patented technology

A three-dimensional microscopic imaging apparatus (10) and an imaging method therefor. A lighting source module (100) is used for emitting excitation light; filtering and focusing is performed on the excitation light; the light that has been subjected to filtering and focusing is amplified at a preset amplification factor, and relaying processing is performed on the amplified excitation light, such that excitation light that has been subjected to first relaying is obtained; a scanning module (200) deflects on the basis of a first voltage signal the excitation light that has been subjected to first relaying, relays the deflected excitation light to an objective lens (12) to obtain excitation light that has been subjected to second relaying, focuses to a target sub-field of view the excitation light that has been subjected to the second relaying, so as to excite a sample in the target sub-field of view, collects a fluorescence signal emitted from the sample, and introduces the fluorescence signal into an imaging module (300); and the imaging module (300) is used for performing optical spatial spectrum multiplexing imaging on the basis of spatial spectrum information of the fluorescence signal, and recording an optical spatial spectrum multiplexing imaging result by means of a camera (19).

The invention provides a ferromagnetic artificial neuron film and application thereof. The ferromagnetic artificial neuron film comprises a transparent substrate and a ferromagnetic heterojunction constructed on the transparent substrate, the ferromagnetic heterojunction comprises a ferromagnetic alloy layer, a heavy metal layer and an anti-oxidation layer. Nonlinear spin oscillation of the ferromagnetic artificial neuron film is excited through femtosecond laser, terahertz radiation with intensity nonlinear response is directly generated, and the ferromagnetic artificial neuron film serves as an artificial neuron of a space optical neural network. The activation function response meeting the performance requirement of the artificial neuron can be effectively generated without introducing the regulation and control of an external magnetic field, and a better artificial neuron function facing the optical space neural network is realized.

The invention relates to a method for carrying out a cleaning process for the internal cleaning of a container (10), in the course of which a cleaning fluid is sprayed against the inner wall of the container (10) in a periodically repeated jet pattern by means of a jet cleaner inserted into the interior of the container (10) with a nozzle head rotating about a main axis of rotation, wherein distance measurement values ​​(Dn) are recorded by means of an optical distance meter (30) and output to a control unit. The invention is characterized in that, for monitoring the cleaning process, the optical distance meter (30) is statically directed into the interior of the container (10) and the distance measurement values ​​(Dn) are continuously recorded during the spraying process and output to the control unit, which continuously calculates monitoring values ​​from them by averaging and compares them with a stored reference value.

The invention discloses a full-dimensional photon spin Hall space differential imaging method. The method comprises the following steps: inputting an arbitrary polarization state light field into a first lens for Fourier transform to obtain a frequency domain light field; inputting the frequency domain light field into a half-wave geometric phase liquid crystal polarization grating for polarization separation to obtain first left-hand circularly polarized light and first right-hand circularly polarized light; and inputting the first left-handed circularly polarized light and the first right-handed circularly polarized light into a quarter-wave geometric phase liquid crystal polarization grating and a second lens, respectively performing polarization separation and inverse Fourier transform to obtain an airspace light field, and inputting the airspace light field into a polarizer for polarization analysis to obtain a differential image. According to the invention, optical differential effects of three dimensions of amplitude, phase and polarization can be effectively generated by a photon spin Hall effect, and full-dimension optical space differential processing of an image is realized.

The invention discloses a reflective beam-combining visual field splicing system, a multi-path laser scanning beam-combining system and a laser scanning microscope, and relates to the technical field of microscopic imaging instruments, the reflective beam-combining visual field splicing system comprises at least one reflective beam-combining subunit, and the reflective beam-combining subunit comprises a relay lens group and an adjustable reflector; the relay lens group comprises two 4f systems, pupil conjugate planes of starting points of the 4f systems are different, and a focus conjugate plane exists in an internal optical space between the two 4f systems; the adjustable reflecting mirror is arranged in the internal optical space, receives and reflects the light beam from the first light path, and meanwhile allows the light beam from the second light path to pass through without blocking; wherein the first light path light beam reflected by the adjustable reflecting mirror and the straight-through second light path light beam are subjected to beam combination visual field splicing on a focal point conjugate surface, and are converged on the same pupil conjugate surface. According to the reflection-type beam-combining view splicing system, the light path structure can be simplified, and the transmission loss of laser energy is reduced.

A space-based optical space target detection method fusing track information comprises the following steps: acquiring an image spot position of a point target in a star map of a current position by using a space-based optical camera, and determining a candidate target set according to different motion characteristics of a fixed star and a space target; determining the center-of-mass coordinate and pixel range of the candidate target under the image plane coordinate system according to the orientation of the optical camera, converting the center-of-mass coordinate and pixel range into the sight angle and range under the satellite body coordinate system, carrying out inter-frame trajectory association on the obtained star map sequence, updating the space target library according to trajectory information, and outputting a space target detection result. And repeating the steps to traverse all star maps.

The invention provides an ultra-short and ultra-strong laser pulse measuring device and an optical time-space coupling distortion measuring and data processing method based on the device. The device comprises an ultra-short and ultra-strong pulse laser system to be measured, an attenuation module, a beam splitter, a spectral phase measurement unit, a reflector, a micro-lens array, a binary intensity coding plate, a lens, a precision displacement platform, a dispersion element, an imaging lens and a CCD (Charge Coupled Device). The device and the method can be applied to quantitative measurement of ultrashort pulse light space-time coupling distortion.

[Problem] To control according to the requirements of various communication services and transmit information via an appropriate communication network. [Solution] The present invention comprises: a line measurement unit 11 which measures line measurement information when performing line control based on line route information and line parameters for transmitting and receiving communication service data to and from an optical space communication device 2 which performs optical space communication via one or a plurality of lines mounted on a non-terrestrial node group and an optical ground station, on the basis of a service request and line measurement information on a plurality of lines, received from the non-terrestrial node group; a position calculation unit 13 which calculates position information on the non-terrestrial node group; a line parameter calculation unit 10 which calculates line route information and line parameters on the basis of the position information, a service request, and line measurement information; a line control unit 12 which controls a line on the basis of the line route information and the line parameters, for the optical space communication device 2; and a line information communication unit 14 which communicates the service request, the line measurement information, the line route information, and the line parameters with the non-terrestrial node group.

The application relates to a resource allocation method of a full-optical space division multiplexing elastic optical network, and belongs to the technical field of optical network communication. The method comprises the steps of fiber core grouping and spectrum partitioning, fiber core selection and L-shaped frequency block allocation. The fiber core grouping and spectrum partitioning step divides a seven-core optical fiber into three groups, divides an in-group priority area, and sets a grouping partition weight coefficient. The fiber core selection step arranges the fiber cores in descending order according to the fiber core weight values according to the frequency slot usage, the link length and the number of overlapping frequency slots between the fiber cores on a path, selects the fiber core with the maximum weight value as a transmission fiber core, the L-shaped frequency block allocation step obtains an L-shaped frequency block set satisfying the connection type limitation and the crosstalk threshold limitation according to the remaining unallocated frequency blocks and the frequency block allocation limitation condition, and selects the L-shaped frequency block with the maximum weight value as a transmission frequency block by using an L-shaped frequency block weight calculation formula. The application can balance the number of idle slice machines at each node on the network and guarantee efficient transmission of service requests.

The invention relates to the technical field of cooling of optical equipment in a high-energy laser system, in particular to a water-cooling optical mirror bracket, which is characterized in that an annular or spiral annular water channel matched with the circumferential heat dissipation characteristic of a lens is arranged in a mirror bracket body, and two ends of the water channel are communicated with the outside through connecting ports in the side wall of the mirror bracket. Coolant flows through the water channel to efficiently take away heat. The design does not need an additional water cooling plate, reduces the weight of the mirror bracket, saves the optical space, can be compatible with various coolants such as liquid and gas, is adaptive to the temperature range from the liquid nitrogen temperature to 600 DEG C and the pressure environment from low vacuum to 10 atmospheric pressures, and can be made of alloys such as aluminum, steel and copper. The machining modes comprise 3D printing, casting, friction welding and the like, and the method is suitable for spectacle frames with different thicknesses. The design is uniform in cooling, can guarantee the optical property of the lens and stable light spot quality, and is wide in application range.

An optical space communication device includes a transmitter for transmitting a first signal for optical axis alignment with another optical space communication device including a reflector, the first signal being modulated using a first spreading code, and a receiver for detecting, from a received optical signal, a reflected signal of the first signal reflected by a reflector of the other optical space communication device using the first spreading code, and detecting, from a received optical signal, a second signal for optical space communication transmitted from the other optical space communication device using a second spreading code different from the first spreading code.

To provide an optical space communication system that efficiently enables data transmission even when a packet loss occurs in concealed packets.SOLUTION: In a system 1 for performing optical space communication between a transmitting device 3 and a receiving device 5, the transmitting device includes an encryption unit that encrypts data using an encryption key to obtain encrypted data, a packet generation unit that adds information regarding the data size of the encrypted data, data identification information, and information regarding the encryption key to the encrypted data to generate an optical space communication packet, and a packet transmitting unit that transmits the optical space communication packet to the receiving device, and the receiving device includes a packet receiving unit that receives the optical space communication packet, and a decryption unit that decrypts the encrypted data using information regarding the encryption key included in the optical space communication packet.SELECTED DRAWING: Figure 1

[Problem] To provide an optical space communication system where data can be efficiently transmitted even when packet loss has occurred in a concealed packet. [Solution] Provided is a system for implementing optical space communication between a transmission device and a reception device. The transmission device comprises: an encryption unit that encrypts data by using an encryption key, thereby obtaining encrypted data; a packet generation unit that adds, to the encrypted data, information related to the data size of the encrypted data, identification information of the data, and information related to the encryption key, and generates a packet for optical space communication; and a packet transmission unit that transmits the packet for optical space communication to the reception device. The reception device comprises: a packet reception unit that receives the packet for optical space communication; and a decryption unit that decrypts the encrypted data by using the information that is related to the encryption key and is included in the packet for optical space communication.

Provided is a novel optical space communication apparatus which is capable of inferring a hindrance factor to communication carried out with laser light. An optical space communication apparatus includes light receiving sections that each receive laser light and at least one processor, the at least one processor carrying out: a measurement process of measuring light receiving states of laser light at the respective light receiving sections; a determination process; and an inference process of inferring, based on the light receiving states of laser light, a hindrance factor to communication carried out with laser light.

The invention relates to a high-temporal-spatial-resolution large-volume three-dimensional microscopic imaging device and method, and the device comprises an exciting light generation module which is used for generating strip-shaped illumination exciting light; the scanning module is used for determining a fluorescence signal emitted by the sample and performing de-scanning on the fluorescence signal to generate a de-scanned fluorescence signal; the imaging module is used for carrying out optical spatial multiplexing imaging on the spatial frequency spectrum information of the fluorescence signals after de-scanning, traversing all the strip-shaped sub-view fields according to corresponding multi-view angle imaging results, and generating imaging results of all the strip-shaped sub-view fields under different imaging view angles; and the reconstruction module is used for reconstructing imaging results of all the strip-shaped sub-view fields under different imaging view angles so as to determine three-dimensional reconstruction images of all the strip-shaped sub-view fields, and splicing the three-dimensional reconstruction images of all the strip-shaped sub-view fields so as to generate a three-dimensional microscopic image of the target large view field. Therefore, the problem that large-volume and high-temporal-spatial-resolution three-dimensional microscopic imaging and the like are difficult to realize in related technologies is solved.

The application belongs to the technical field of photonic artificial micro-nano structure design and image processing, and discloses an optical spatial differential device for target extraction, a reverse design method and application. The method comprises the following steps: setting a target transfer function according to the functional requirement of an optical device; establishing an optimization model according to the design parameters of a super surface, the design parameters being dielectric constant distribution, and performing certain constraint and binary processing on the design parameters in each iteration process; judging whether the loss function converges or not, outputting an optimization scheme if the loss function converges, and otherwise, performing gradient calculation and continuing the next iteration optimization process. The optical spatial differential device is based on the diffraction optical angular spectrum theory and the Fourier transform property, directly acts on an incident light field image, realizes spatial frequency regulation of the light field image in the wave vector space, and thus achieves the purpose of processing the image in the optical domain. The obtained patterns of the application can be directly applied to a double photopolymerization 3D printing technology, so as to prepare a sample.

The invention discloses a load effect prediction method and device, a medium and a product, and relates to the technical field of semiconductor etching. The load effect prediction method comprises the steps that an optical space image corresponding to a first neighborhood of a to-be-predicted graph and a partial graph distribution density image corresponding to a second neighborhood are acquired, to-be-simulated etching input information of the to-be-predicted graph is determined, and the coverage range of the second neighborhood is larger than that of the first neighborhood; and inputting the to-be-simulated etching input information into a pre-trained etching prediction model to obtain an etching simulation result of the to-be-predicted graph under the action of the load effect. By inputting the optical space image into the etching prediction model, the etching prediction model can capture the characteristics related to the optical proximity effect affecting etching from the optical space image, then the initial condition of etching is predicted, a more accurate etching simulation result is obtained according to the predicted initial condition of etching, and the etching simulation accuracy is improved. And the accuracy of load effect prediction is improved from the side.

The utility model discloses AR dynamic interactive device based on holographic projection technique, including interactive device ontology, the upper portion of interactive device ontology is provided with main projection mouth, and the upside of main projection mouth is installed with compound projection support mechanism, and compound projection support mechanism includes the chassis, and the fixed setting of chassis has acrylic sheet, and the top fixed mounting of acrylic sheet has the positioning frame. This AR dynamic interactive device based on holographic projection technique, and the upper and lower sides of four acrylic sheets are fixedly provided with positioning frame and chassis respectively, form a stable holographic projection curtain wall, will not happen " collapse waist " condition, avoid destroying the symmetry light path required for holographic projection, guarantee holographic projection work normal progress, and four acrylic sheets are combined together and show the pyramid shape, can accurate construction meet the optical space of holographic projection principle, make the light form symmetrical reflection in it, let the observer can clearly see the complete three -dimensional holographic image from multiple angles.

The invention relates to the technical field of laser fault detection, and discloses a laser light path protection and fault rapid positioning method and device, and a medium. The method comprises the following steps: arranging a thermosensitive optical path optical sensor and a space optical sensor at a preset node of a laser; laser power is gradually increased, and light path optical data and corresponding power are bound and stored to preset power after light emitting; controlling the laser to stop light and acquire the initial temperature, gradually increasing the power, acquiring the temperature at preset time after light emission, calculating the temperature increment and the accumulated increment, and stopping light and cooling until the power reaches a preset value after each time of storage; and reading sensor data, calculating actual power and performing early warning. According to the invention, the temperature-sensitive sensor, the optical path optical sensor, the space optical sensor and the control panel are deployed, early warning is carried out by two parameters of power difference and temperature increment, quick response can be realized, device / optical fiber burnout can be avoided, the maintenance cost is reduced, and large-scale integrated equipment is prevented from downtime due to laser fault.

The invention relates to a rongeur, which comprises a fixed handle, fixing the forceps handles; a movable handle; a movable clamp handle; the rongeur further comprises a navigation terminal, and the navigation terminal comprises an optical positioning system which comprises an optical reference frame; the electromagnetic positioning system comprises a first electromagnetic sensor and a second electromagnetic sensor; the navigation system is used for re-establishing the first coordinate position and the second coordinate position in the electrical space coordinate system in the optical space coordinate system, and calculating and displaying the adjusting angles of the movable clamp mouth and the fixed clamp mouth according to the reference coordinate position and the re-established first coordinate position; and the occlusion depth of the movable jaw and the fixed jaw is calculated and displayed according to the re-established second coordinate position. The problem that the adjusting angles of the movable jaw and the fixed jaw of the rongeur are difficult to obtain can be solved, and the problem that the occlusion depth of the movable jaw and the fixed jaw is difficult to accurately obtain can be effectively solved.

A telecommunication system is based on spatial multiplexing of optical cables and uses optical space connected modulation (OSCM) to establish optical telecommunication links, where multiple optical communication channels are established with a single optical system. The system comprises: An OSCM transmitter system (1), a communication channel (11), and an OSCM receiver system (2). The OSCM transmitter system (1) includes a data input port (3), an OSCM modulator system (4), a generic light source (8), and an optical transmitter system (10). The OSCM modulator system (4) includes a processor system (5), and a spatial modulator (7). The OSCM receiver system (2) includes an optical receiver system (12), and an OSCM demodulator system (14). The OSCM demodulator system (14) includes an image sensor (13) and a processor system (15). The system allows multiple transmission channels to be formed using a single optical system.

The invention discloses a mixed reality space registration method, apparatus and device, and a storage medium. The method comprises the steps of obtaining a plurality of mark coordinates of a reflective mark arranged on a probe tool in an optical space, and determining a first point cloud coordinate set in an optical positioning space; acquiring a second point cloud coordinate set in the virtual space, and performing coarse registration and alignment on the optical positioning space and the virtual space based on the first feature point cloud coordinate and the second feature point cloud coordinate of the preset feature point; and determining an initial fine registration error and an initial fine registration error weight according to a first point cloud coordinate set coarse registration conversion result and a second point cloud coordinate set in the coarse registration result, and performing iterative fine registration alignment on the optical positioning space and the virtual space based on the initial fine registration error and the initial fine registration error weight. A final precise registration conversion matrix is obtained; and determining a mixed reality space registration result based on the final fine registration conversion matrix, so that the efficiency and accuracy of mixed reality space registration can be improved.

The application provides a measurement method and system of optical spatial coherent structure based on Poisson bright spot experiment. The method does not have requirements on statistical characteristics of random light field, and can accurately calculate the coherent structure in real time only by shooting three groups of light intensity. In addition, the system does not need additional reference light path, and can cope with severe environmental conditions.

An optical space communications transmission and reception terminal includes: an optical transceiver to convert transmission data into a transmission optical signal modulated at a symbol rate synchronized with a transmission clock signal and output it, and generate received data from a reception optical signal; an intensity modulation unit to generate an intensity-modulated transmission optical signal; a transmission clock source to supply a transmission clock signal; a fiber coupling unit) to output the intensity-modulated transmission optical signal as collimated light and couple the input optical signal to an optical fiber; an optical fiber amplifier to amplify the optical signal coupled to the optical fiber; a tracking mirror to output the optical signal to the fiber coupling unit and output the transmission optical signal to space; and an angle sensor to output a clock signal extracted from the optical signal divided by a beam splitter to the optical transceiver.

The invention discloses a portable optical space-time standard measurement system, and relates to the technical field of integrated navigation, the portable optical space-time standard measurement system comprises a bottom plate, a first frame, a second frame and a third frame, the first frame is sleeved in the second frame, and the second frame is sleeved in the third frame; a three-axis digital accelerometer is mounted in the first frame; a three-axis optical fiber gyroscope is mounted on the second frame; an intelligent navigation computer module and a power conversion module are mounted on the third frame; a top plate is arranged above the second frame, and a power supply module and a binocular vision module are installed on the top plate. Through the arrangement of the invention, the unique module arrangement is adopted to form a multi-layer mutual-embracing type cube space structure in which the modules are distributed in a crossed and staggered manner, so that the limited space can be fully utilized, and the overall volume of the system is greatly reduced.

The invention relates to the technical field of medical artificial intelligence, and discloses a diopter detection method, device and equipment and a storage medium, and the method comprises the steps: carrying out the quality judgment of a multi-angle eye image sequence, obtaining a qualified image, carrying out the pupil positioning and region extraction of the qualified image through a pupil detection model, and obtaining a diopter detection result; and outputting a fixed-size area image taking the pupil as the center, and processing the fixed-size area image and the physiological features of the user through a diopter prediction model to obtain a diopter detection result. According to the method, the image reliability is ensured through quality judgment, the fixed-size regional image of the qualified image and the physiological features of the user are fused, the problem that the image features are separated from clinical data in a traditional method is solved, the diopter prediction model constructed by combining the optical imaging principle and the self-attention mechanism is adopted for vision prediction, and the accuracy of vision prediction is improved. Therefore, misjudgment of a general attention mechanism on the optical space relation is avoided, and limitation of fixed parameters of existing equipment is broken through.

This invention is related to two-stage optical packet switch fabrics for TE (terabit Ethernet)-based HPCNs (high performance computing networks). The main features of the invented optical switch architecture are the following: (1) it can support thousands of TE links; (2) it has a low signal power loss and requires no optical amplifiers; (3) it can switch WDM packets simultaneously without using wavelength converters.The patent application presents various embodiments of the two-stage switch architecture. In one embodiment, the first stage comprises K N×N (N inputs and N outputs) AWGs and the second stage comprises N K×K OSSes (optical space switches). This results in a port count of KN. Each input can transmit N wavelengths and a total of KN2 packets can pass through the switch fabric simultaneously without blocking. The switch fabric is named AS for the technologies used in the two stages. Currently 32×32 AWGs are available. This allows an AS switch fabric to support more than a couple of thousands TE links easily.In another embodiment, the first stage comprises N K×K OSSes and the second stage comprises K N×N AWGs. It is named SA for the same reason given above. Similar to the first embodiment, the total number of source and destination ports supported by an SA switch fabric equals KN, and KN2 packets can be transmitted simultaneously through the switch fabric. All the features and advantages of the AS architecture are inherited by the SA architecture.In still another embodiment, two AS or SA switch fabrics are used in parallel to construct a switching system capable of handling any kind of unbalanced traffic loads. A port processor for keeping a bounded delay, for processing and re-sequencing packets in such a switching system is also presented in this patent application.

The invention relates to a quantitative phase imaging device (1) comprising:-an optical imaging system (3) for imaging an object (14) in an image plane,-a light source (2) for emitting optical radiation (I) onto a Fourier plane (C) of the optical imaging system,-an optical spatial filter (4) in the Fourier plane (C), the invention relates to an optical imaging system comprising:-an optical imaging system comprising a minimum attenuation region (41) and a maximum attenuation region (42),-a wavefront sensor (5) for measuring the intensity and phase of optical radiation passing through the optical imaging system in an image plane to quantify the phase caused by an object, where at least part of the optical radiation has interacted with the object, the light source, the optical imaging system and the optical spatial filter are such that the optical radiation (I) is focused in a maximum attenuation region when the object is not present.

The invention relates to an MIMO (Multiple Input Multiple Output) system for sea-air transboundary mass laser communication, and belongs to the related fields of sea-air transboundary communication and blue laser communication. The system comprises an FPGA, a power divider, an LD driving module, an LD transmitting module, a PMT receiving module, a PMT detection module and a data acquisition card. The FPGA is used for converting an analog signal into a digital electric signal; the power divider divides an electric signal output by the FPGA into three paths of same electric signals; the LD driving module is used for adjusting the electric signal output by the signal sending module and coupling the direct current signal; the LD transmitting module is used for collimating and transmitting laser carrying signals; the LD receiving module is used for receiving the signal light beam and performing optical space filtering; the PMT detection module is used for converting an optical signal into an electric signal; and the data acquisition card is used for acquiring and storing electric signals in real time. According to the embodiment, the light spot coverage area is increased through the LDs, the strength of received signals is increased through the PMTs, the stability of cross-sea-air communication is high, on the basis, the FPGA and the data acquisition card are adopted for signal receiving and transmitting, and the real-time performance of the system is improved.

The application discloses a kind of space division optical switching method and system based on optical mode label, the method with optical mode structure distribution characteristics as label (bridge), through optical wavefront phase multi-plane transformation, realize the arbitrary interconnection between multiple input ports / modes and multiple output ports / modes, the optical mode is various space mode, for example, Hermite-Gaussian, Laguerre-Gaussian, vortex, linear polarization, vector and so on mode;The multi-plane transformation can be loaded on spatial light modulator, for the light of each input port / mode is modulated according to the wavefront phase of space / mode phase distribution Multi-level (multiple) transformation, so that the light of each space port / mode is transformed to the space port / mode needed.The system structure is simple, can match various input / output interface, supports wide spectrum communication, compatible with wavelength division multiplexing system, can be used to constitute super large multi-dimensional optical switching system.