556 results about "Optical processing" patented technology

The invention relates to the technical field of optical machining surface shape simulation, in particular to a surface shape simulation calculation optimization method for a multi-mechanical-arm cooperative machining scene, and the method comprises the steps: planning a polishing region and a polishing track belonging to each mechanical arm according to the surface shape sampling size of a workpiece to be machined and the number and position of the mechanical arms for machining; and a residence point in the polishing track of each mechanical arm; the residence point of each mechanical arm is matched with the surface shape data of the workpiece to be machined, and the surface shape data corresponding to the residence point of each mechanical arm is determined; and finally, according to the surface shape data corresponding to the residence point of each mechanical arm and the removal function of the workpiece to be machined, final residence time distribution of each mechanical arm during machining is obtained through calculation. According to the method, a surface shape matching simulation calculation method is utilized, the secondary frequency superposition problem occurring during multi-mechanical-arm machining is effectively eliminated, and meanwhile residence time distribution with good smoothness can be obtained.

The invention relates to the technical field of optical processing, and provides a large-caliber monocrystalline silicon aspheric surface high-precision polishing method which is characterized by comprising the following steps: S10, obtaining full-caliber surface shape error distribution of a large-caliber monocrystalline silicon aspheric surface and mapping the full-caliber surface shape error distribution to a discrete grid; s20, constructing a residence time distribution optimization model and a polishing path planning optimization model, and outputting an optimal residence time distribution matrix and a polishing path sequence by taking the surface shape error parameters of the large-aperture monocrystalline silicon aspheric surface as input; s30, based on the optimal residence time distribution matrix and the polishing path sequence, the aspheric surface of the large-diameter monocrystalline silicon is polished; and S40, after each polishing cycle, the steps S10-S40 are repeated until the number of iterations is reached. According to the method, a closed-loop control method of time distribution-path planning-dynamic calibration is formed, so that the surface shape precision and efficiency of large-diameter aspheric surface polishing are remarkably improved.

The invention relates to the technical field of optical processing, in particular to a method for deciding polishing process parameters based on image quality indexes of a neural network. Comprising the steps of determining structure parameters of an optical system according to specific requirements; marking an optical element which needs to be subjected to process decision in the optical system, and recording historical processing data; an optical system is built, the marked optical element is placed in the optical system, actual image quality indexes are obtained through debugging, and the deterioration degree compared with ideal system image quality is collected; repeating the steps to obtain a data set; taking the image quality deterioration degree data set as input, taking the process parameters of the elements as output, and inputting the image quality deterioration degree data set and the process parameters into a modular convolutional neural network for training to obtain a prediction network model; and when an optical system element manufacturing task arrives, inputting the system type and the image quality deterioration degree allowance into the prediction network model to obtain polishing process parameters meeting the image quality deterioration degree allowance. The method has the advantages of quick decision, less calculation time and high understandability.

The subject matter described herein relates to various antenna element configurations, antenna array configurations, their operations including various systems and methods to generate modulated data for transmission by an RF antenna array via an optical processing engine. The subject matter includes optical processing engine structure and methods (e.g., modulating in the optical domain, MIMO and spatial modulation via RF beam formation, coherent transmission of RF signal components, coherent operation of spatially separate RF antenna arrays) that may be implemented with the various RF antenna array structures. In some examples, the system combines the virtues of digital, analog and optical processing to arrive at a solution for scalable, non-blocking, simultaneous transmission to multiple UE-s. Much of the system architecture is independent of the RF carrier frequency, and different frequency bands can be accessed easily and rapidly by tuning the optical source (TOPS). In some examples, multiple communication channels may be transmitted simultaneously to different locations. The transmitter may be formed by an array of optically fed antennas.

The invention relates to the technical field of optical processing, and discloses an imaging depth adjustable laser optical processing system, which comprises a laser emission unit, an optical conduction unit, a spectral domain optical coherence tomography imaging unit, a laser galvanometer scanning unit, an indication light imaging unit, an image processing display unit and a control unit, according to the spectral domain optical coherence tomography imaging system, time scanning of high output wavelength is realized by utilizing a wavelength scanning mode that the scanning telescopic rotating module drives the spectral domain optical coherence tomography imaging system, and position information or image information of a sample from the surface to the interior is provided in real time in combination with an image processing technology; the three-dimensional galvanometer scanning unit scans the position of a sample in real time and records the position and orientation information of a scanning point at the same time, real-time image information and different depths, widths and axial positions of the sample are scanned at the same time, the focusing depth and wavelength of an imaging laser beam and the focusing position and energy of the scanning laser beam are fed back and adjusted, and the laser beam is positioned to the sample for machining.

The invention discloses an optical machined part defect detection method based on an image technology, and belongs to the technical field of optical machined part detection, in the method, a defect edge in an image is extracted through a Canny edge detection algorithm, a defect area can be effectively separated from a background area, and a foundation is laid for subsequent feature extraction and defect recognition. The segmentation technology has the advantages that the contour of the defect can be accurately defined, and high detection precision can be kept even under the background of complex textures or uneven illumination. In addition, the non-maximum suppression and double-threshold detection mechanism of the Canny algorithm is helpful for reducing false detection and missing detection, and the detection reliability is improved. And extracting shape, texture and statistical features from the segmented defect region, wherein the features are keys for distinguishing different types of defects. Different types of defects can be effectively distinguished through feature extraction, and classification errors are reduced. The calculation amount of subsequent model training and recognition can be reduced, and the efficiency of the whole detection process is improved.

Optical patient monitoring systems are disclosed. The system may comprise an optical coupling system configured to transmit to and receive light signals from one or more locations on a subject; an optical processing system configured to generate optical data using the received light signals; and a computer programmed to receive the optical data; determine, using the optical data, at least one indicator of blood pressure; estimate an estimated blood pressure using the at least one indicator of blood pressure; and generate a report indicative of the estimated blood pressure. The at least one indicator of blood pressure comprises one or more of near-infrared spectroscopy (NIRS) data; photoplethysmography (PPG) data, diffuse correlation spectroscopy (DCS) data, speckle contrast optical spectroscopy (SCOS) data, speckleplethysmography (SPG) data, first derivative PPG data, second derivative PPG data, first derivative SPG data, second derivative SPG data, inflow (Fin) data, outflow (Fout) data, heart rate data, physiological data, and combinations thereof. Methods for estimating blood pressure are also disclosed.

The invention discloses a soil in-situ detection jet grouting remediation device and system.The soil in-situ detection jet grouting remediation device comprises a fluorescence spectrum analysis detection system which comprises a drill rod, an optical processing module, a signal module, a control module and a power module, and the optical processing module, the signal module, the control module and the power module are installed in a conical drill bit of the drill rod; and a high-pressure rotary jet grouting system is mounted in the drill rod. The detection system rapidly detects the physical and chemical properties of the polluted soil and transmits the physical and chemical properties to the control system through a data line of the control module, and the control system regulates the dosage according to the data and accurately injects and adds the drugs in real time.

The invention belongs to the field of advanced scientific devices integrating optics, quantum mechanics, atomic physics and a vacuum technology, and particularly relates to a glass vacuum cavity and a manufacturing method thereof.The manufacturing method includes the steps that the inner surfaces of window pieces are machined firstly, an inner working face with high surface shape precision can be obtained, and after the inner surfaces are machined, the four window pieces are plated with films, and the working faces are plated with antireflection films; the optical cement surface is plated with an optical cement auxiliary film, and the diffraction film is rubbed after the optical cement surface is plated with the film, so that the optical cement strength is ensured to be optimal. After every two of the four window sheets are subjected to optical cement deepening, the outer surfaces are processed, and when the outer surfaces are processed, the inner surfaces are protected, so that the quality of a film layer is not damaged. By means of the method that optical processing, film coating and optical cement deepening are conducted on the inner surface alternately, and then optical processing, film coating and optical cement deepening are conducted on the outer surface alternately, the glass vacuum cavity which is high in window piece surface shape precision, high in window piece parallel precision, high in combination strength and good in air tightness, and the film layer surface quality is not prone to pollution or damage can be machined.

The invention relates to a satellite information processing system and method based on photoelectric hybrid calculation. The satellite information processing system comprises a photoelectric hybrid calculation module, a photoelectric dual-channel transmission module and an information acquisition module, the photoelectric hybrid calculation module comprises an optical processing unit and an electric processing unit, the optical processing unit is used for realizing matrix operation of big data, and the electric processing unit is used for realizing other operations except the matrix operation of the big data; the photoelectric dual-channel transmission module adopts an electrical / optical dual-bus structure of an electrical bus and an optical transmission network, the electrical bus is used for transmitting and sharing low-speed and high-reliability data, and the optical transmission network is used for transmitting and sharing large-data-volume load data. Based on the technical advantages of high bandwidth, parallelism, low time delay, low loss, interference resistance, precise measurement and the like of the photon technology, and in combination with the technical advantages of control and the like of the electronic technology, high-speed data exchange and real-time data processing capability can be realized, so that the satellite-as-a-service efficiency is improved.

The invention discloses an optical quasi-three-dimensional space converter which can convert a three-dimensional space into a large number of fixed-position two-dimensional real images with different object image distance related parameters. The optical quasi-three-dimensional space converter comprises a zoom long-focus lens, a short-focus micro lens array and an object image distance related parameter regulator; one of the two lenses is used for receiving light from an object space and imaging the light into an intermediate image; one is used for converting the intermediate image into a virtual image or a real image of a three-dimensional space; the intermediate image horizontal turner turns the intermediate image left and right in the horizontal direction for real image space conversion; and the object image distance related parameter regulator is used for regulating the focal lengths of the zoom long-focus lens, the short-focus micro lens array and the pick-up lens and the relative positions of the lenses. The optical quasi-three-dimensional space converter can be used for a wide-field-of-view three-dimensional camera, a wide-field-of-view three-dimensional projector for naked eye observation, a three-dimensional optical processing machine, artificial eyes and the like.

Systems and methods are described for optical processing. According to some aspects an optical processing apparatus may include a pixelated photodiode array (PDA), each pixel in the PDA includes a radiation detector. The apparatus also includes a read out integrated circuit (ROIC) that includes a logic circuit and a plurality of switch elements. The plurality of switch elements being switchable between an armed state for arming its corresponding radiation detector and transmitting a signal received from the corresponding detector to the ROIC, and a disarmed state for disarming its corresponding detector and blocking transmittal of the signal, wherein in the armed state, the PDA is configured to detect an incoming optical signal and in the disarmed state, the PDA is configured to disregard the incoming optical signal. Moreover, the logic circuit controls a switch state of a selectable switch element associated with a radiation detector.

The invention relates to the technical field of optical processing, and provides a monocrystalline silicon aspherical lens and a numerical control polishing process thereof, a numerical control polishing machine is used for carrying out the main steps of rough polishing, fine polishing, fine trimming and the like, process parameters are adjusted according to the characteristics of monocrystalline silicon, and therefore the monocrystalline silicon aspherical lens with the diameter smaller than 320 mm can be polished. By means of a numerical control polishing machine tool, the optimized front surface type PV can reach 0.3 mu m or below, the surface smoothness can reach 40 / 20, and the method has reference significance for monocrystalline silicon aspherical lenses with the diameter of 320 mm or above.

The embodiment of the invention provides an optical chip, an optical device, a manufacturing method, an optical module and optical processing equipment, which are applied to the field of design and manufacturing of optical chips and optical devices. The optical chip comprises a crystal grain substrate, at least one 3D printing lens and a built-in optical processing device. A waveguide is arranged on the crystal grain substrate; a receding groove is formed in the outer surface of the crystal grain substrate. The at least one 3D printed lens includes an inner lens. The inner lens and the built-in light processing device are arranged in the receding groove, and the inner lens is coupled to the crystal grain substrate or the built-in light processing device. Wherein the inner lens is used for shaping an optical signal; and optical signals are transmitted with the waveguide and / or a built-in optical processing device. By means of the mode, a packaging coupling structure internally provided with an optical processing device and an optical chip can be omitted, the cost and the area overhead of the optical chip are reduced, the integration degree of the optical chip is improved, and low-cost and miniaturized development of optical devices can be greatly promoted.

The invention relates to the technical field of intelligent monitoring, in particular to an intelligent monitoring method and system based on multi-source perception of a compound eye array camera, radar and the like, the intelligent monitoring system comprises an intelligent monitoring system and a monitoring system, the monitoring system comprises a radar module and an array platform module, and the output end of the radar module is connected with the input end of a radar control module through a signal line. The output end of the array platform module is in signal connection with the input end of the optical processing module through a signal line, the radar control module is in bidirectional signal connection with the radar indication module through a signal line, and the output end of the radar control module is connected with the input end of the master controller module through a signal line. According to the intelligent monitoring method and system based on multi-source perception of the compound eye array camera, the radar and the like, white light imaging, a fog penetration function, infrared imaging and a radar guiding and tracking function are realized, and adverse effects caused by extreme weather can be overcome.

An optical module (200), comprising an optical processing component (500). The optical processing component (500) comprises: a first beam processing assembly (510); a second beam processing assembly (520), the second beam processing assembly (520) being arranged above the first beam processing assembly (510); a lens assembly (530) arranged at the light exit side of the first beam processing assembly (510) and the second beam processing assembly (520); and a deflecting prism (540) arranged at the light exit side of the lens assembly (530), wherein the deflecting prism (540) is provided with reflective surfaces (5411, 5421, 5431, 5441, 5451) at the reflection side thereof, the reflective surfaces (5411, 5421, 5431, 5441, 5451) are located on an output optical path of at least one of the first beam processing assembly (510) and the second beam processing assembly (520), and the reflective surfaces (5411, 5421, 5431, 5441, 5451) are configured to reflect light signals output by the first beam processing assembly (510) and / or the second beam processing assembly (520).

The invention relates to the technical field of optical processing, in particular to a method for calculating the processing residence time of a large-aperture optical element through a convolution gradient method, and the method comprises the steps: obtaining the surface shape residual error and a removal function of a to-be-processed workpiece according to the surface shape and the processing technology of the to-be-processed workpiece; a polishing track and polishing track parameters are set according to the surface shape sampling size of the workpiece to be machined; according to the surface shape residual error, the removal function and the polishing track, an objective function is determined, and iteration conditions are set based on the gradient of the objective function; and optimizing the target function by utilizing an iteration condition, and calculating to obtain the final residence time. According to the method, the original residual iteration condition is set as the gradient iteration condition, so that the calculation precision of the residence time is ensured, the calculation and optimization process of the residence time is accelerated, and the engineering period is shortened.

An optical processing apparatus includes: a combining element that combines a first optical path of a first light beam having a first wavelength and a second optical path of a second light beam having a second wavelength longer than the first wavelength; a condensing optical system having a positive refractive power and that condenses each of the first and second light beams from the combining element on a processing target object; and a correction optical system having a negative refractive power, the correction optical system is disposed on the first optical path at an entrance side of the combining element, one light beam of the first light beam and the second light beam is a light beam for processing the processing target object, the other light beam of the first light beam and the second light beam is a light beam for measuring the processing target object.

The invention discloses an imaging color and brightness meter with double-path spectrum correction and a light measurement method, which are used for meeting measurement requirements of different measurement environments and precision. The device comprises a shell, a control module, an internal spectrometer, an optical processing module, a rotary disc, a lens, a first optical fiber, a second optical fiber and a light splitting assembly, the wheel rotating disc and the light splitting assembly are both arranged on the shell, and the shell is provided with an interface. The interface is connected with the light splitting assembly through a first optical fiber, the internal spectrometer is connected with the light splitting assembly through a second optical fiber, and the interface is used for being connected with an external spectrometer; a shooting lens and a reflecting prism are arranged on the wheel rotating disc, and when the wheel rotating disc rotates until the shooting lens is coaxial with an incident light beam, the incident light beam reaches the light processing module through the shooting lens; when the wheel rotating disc rotates to the reflecting prism to be coaxial with the incident light beam, the incident light beam is reflected by the reflecting prism to form an emergent light beam coaxial with the light splitting assembly, and the light splitting assembly is used for introducing the emergent light beam into the first optical fiber and / or the second optical fiber.

The invention provides a photon calculation method, a photon calculation device and computer equipment. The method comprises the steps that first data are obtained, the first data comprise a plurality of first elements, and each first element represents a number; splitting each first element in the first data into a plurality of parts in the electronic domain; and in a photon domain, representing a plurality of parts after each first element of the first data is split by adopting an optical signal, and carrying out optical processing on the optical signal so as to represent calculation on the plurality of first elements.

The invention relates to the field of polishing machine tools, and discloses an asphalt grinding head and a polishing machine. The asphalt grinding head comprises a connecting disc, a grinding wheel, a driving device and a driving device, and a heating groove is formed in the top side of the connecting disc; the asphalt processing disc is detachably connected to the bottom side of the connecting disc; the bottom side of the heat insulation disc is detachably connected with a heating source, the heat insulation disc is detachably connected to the top side of the connecting disc, and the heating source is located in the heating groove. By heating and softening the asphalt processing disc, the phenomenon that a mirror surface is scratched due to the fact that the hardness of the asphalt processing disc is too high is effectively reduced; according to the asphalt processing disc, the smoothness of the asphalt processing disc on mirror polishing is improved, intermediate frequency errors generated in optical processing are further reduced, different asphalt processing discs and heating sources can be replaced according to the processing requirements of different workpieces, different use requirements are met, the whole body does not need to be directly replaced, and the universality is higher.

The invention relates to a mask defect detection system based on polarization transmission and reflection combination. The system comprises a laser; the first polarization beam splitter is used for carrying out polarization beam splitting on the laser beam to generate P polarized light and S polarized light; the transmission light path is used for performing optical processing and polarization state adjustment on the P polarized light and then projecting the P polarized light to a mask plate; the reflection light path is used for performing optical processing and polarization state adjustment on the S polarized light and then projecting the S polarized light to a mask plate; the imaging light path is used for imaging when the P polarized light is transmitted from the mask plate to obtain a transmission image, and imaging when the S polarized light is reflected from the mask plate to obtain a reflection image; and the storage and operation module is connected with the imaging light path and is used for storing and operating the transmission image and the reflection image so as to analyze whether the mask has defects or not. According to the invention, transmission and reflection dual-polarization light path imaging is adopted, and various mask plate defects can be simultaneously and effectively detected.

A computing system may be provided. The computing system may include an optical memory cavity configured to store signal pulses representing a current combination for a combinatorial optimization computation. The computing system may further include an optical processing cavity. The optical processing cavity may be configured to receive the signal pulses from the optical memory cavity, perform an all-optical 1-bit delay computation on the signal pulses to generate a feedback pulse for at least one signal pulse, and provide the feedback pulse to be coupled back to the optical memory cavity.

The invention relates to the technical field of optical machining, in particular to a magneto-rheological polishing polyhedral common body element integrated machining method which comprises the steps that S1, a known actual grating type track is decomposed into row coordinates according to longitudinal coordinate abrupt change points; s2, splitting each line of track into a first track segment of the main body mirror, a second track segment of the auxiliary body mirror and a second track segment of the main body mirror according to the diameter of a transition point circle; s3, determining the extension length of a transition point according to the length of the removal function of the magnetorheological equipment; s4 to S5 respectively extending the main body mirror, and inserting new points from the body mirror track segments; s6, calculating the z coordinate of each fragment by using a corresponding surface equation to obtain a three-dimensional coordinate; s7, splicing to generate a single-row ordered point sequence; and S8, combining all line tracks and rotating by an angle of-theta to obtain a final track. By means of the scheme, the problems that the multi-face common-body element is long in redundant time and low in efficiency in segmented machining, the edge reserving range of the transition area of the optical element is too large, the effective aperture is reduced, and the imaging quality of an optical system is affected due to the fact that joints of the transition area are not precisely machined are solved.

A real-time machine perception system and vehicles with real-time perception systems can be adapted for navigation in conflict zone environments and include an optical sensor and an optical processing component coupled to the optical sensor. The optical processing component can be configured to solve a non-linear control problem comprising solving a multi-vehicle merging or multi-vehicle synchronization problem. The optical processing component can perform optical processing on a signal from the optical sensor according to a deep learning algorithm having weights determined by solving the non-linear control problem.

A backlight module, including a back plate, and a colored light source plate, a first color conversion layer and a plurality of first optical processing layers, which are on the back plate and sequentially arranged away from the back plate; where the backlight module further comprises a second color conversion layer on at least a side, away from the back plate, of one of the plurality of first optical processing layers farthest from the back plate; an orthographic projection of the second color conversion layer on the first optical processing layer is in a peripheral edge region of the first optical processing layer; and the second color conversion layer is configured to convert monochromatic light emitted by the colored light source plate and incident into the second color conversion layer, into white light.

An optical computing system is applied to the field of optical processing, a first optical processing unit in a first optical processing array of the optical computing system is used for outputting a first optical signal according to first sub-data separated from first data, and the first optical signal indicates a bit of the first data, namely the first sub-data; a second optical processing unit in a second optical processing array of the optical computing system is used for outputting a second optical signal according to the first optical signal and second sub-data separated from the second data, the second sub-data is a bit of the second data, and the second optical signal indicates a product result of the first sub-data and the second sub-data. According to the invention, the power consumption and the device size required by the device can be reduced, and the packaging difficulty is reduced.

The invention relates to an SAR photoelectric processor phase error compensation method based on a Zernike polynomial, and the method comprises the steps: obtaining an SAR photoelectric processor to be subjected to phase error compensation, and employing the Zernike polynomial to express the modulation phase of a spatial light modulator in the SAR photoelectric processor; respectively calculating two-dimensional frequency domain phases of an ideal SAR echo signal and a non-ideal SAR echo signal of the SAR photoelectric processor, determining a focusing phase error, fitting the focusing phase error by adopting a Zernike polynomial, and evaluating focusing phase error (parameter) estimation performance; a plurality of Zernike coefficients are randomly generated for a Zernike polynomial, optimization of the Zernike coefficients is carried out by adopting a genetic algorithm, and the quality of the SAR image is used as a fitness value of the genetic algorithm until the Zernike coefficients meeting optimization conditions of the genetic algorithm are obtained and used for prediction of a modulation phase. Compared with the prior art, the two-dimensional frequency domain phase error can be effectively corrected, and a theoretical foundation is laid for an automatic focusing algorithm special for SAR optical processing.

An optical processing system comprises an Optical Fourier transform stage; and one or more photodetectors for receiving a reference optical signal to provide currents and / or voltages relating to the intensities and / or phases of the reference optical signal; the system further comprising an electronics feedback loop which feeds back the currents and / or voltages and modulates the intensities and / or phases of a subsequent optical signal.

The invention relates to the technical field of optical machining, in particular to a polishing surface roughness prediction method based on a robot flexible ball head tool, which comprises the following steps: firstly, establishing a microscopic contact model of the flexible ball head tool and a workpiece, and determining first pressure distribution of a contact area between the flexible ball head tool and the workpiece; vibration of the flexible ball head tool is converted into pressure fluctuation of the flexible ball head tool, total pressure distribution during machining is obtained, and then second pressure distribution is formed; in combination with the second pressure distribution and the relative speed model during machining of the flexible ball head tool, a material removal rate model during machining of the flexible ball head tool is obtained; performing path integration on the material removal rate model to obtain the surface height change of the workpiece in the machining process; and the surface roughness of the machined workpiece is obtained by combining the original surface height and the surface height change of the workpiece. According to the method, the quantitative relation between the vibration parameters and the surface roughness is disclosed, and a theoretical basis is provided for optimizing polishing process parameters and controlling the surface quality.