213 results about "Optical probing" patented technology

The invention discloses an infrared long-distance spatial adjacent target super-resolution method, and the method comprises the steps: S1, analyzing the imaging characteristics of an optical detection system of a long-distance target and the imaging characteristics of multiple spatial adjacent targets, carrying out the imaging modeling of a point target, and generating a simulation image data set; s2, initializing an input simulation image based on linear mapping; s3, adopting a sparse reconstruction algorithm to realize infrared space adjacent target super-resolution modeling, and constructing a deep expansion network framework; s4, enabling the initialized image to sequentially pass through each stage of the deep expansion network; and S5, constructing a GPU training environment, setting a configuration file training model of a data loader, a model and an evaluator, applying the trained model to a test set, generating a high-resolution image, extracting target coordinate information through post-processing, inputting the target coordinate information into the evaluator, obtaining an evaluation index based on an infrared long-distance space adjacent target, and calculating an average detection rate.

The invention relates to the technical field of optical detection, in particular to an asymmetric spherical cylindrical surface optical multi-pass cell and a calculation method thereof. The invention provides an asymmetric spherical and cylindrical surface optical multi-pass pool, which comprises a spherical reflector and a cylindrical reflector, and the spherical reflector and the cylindrical reflector are both concave reflection, are oppositely arranged and are coaxial; at least one of the two reflectors is provided with a light hole. According to the invention, Lissajous light spot pattern distribution can be realized without rotating the reflector, the utilization rate of the mirror surface is high, and long optical path can be realized. And the relative rotation angle of the two reflectors in the optical axis direction can be kept, the stability of light spot patterns is guaranteed, namely the stability of the light reflection and propagation space path is guaranteed, and therefore the light absorption efficiency is improved.

The invention discloses a wafer high-precision alignment mechanism, and relates to the technical field of semiconductor manufacturing and packaging, the wafer high-precision alignment mechanism comprises a casing and a vertical box integrally and fixedly connected to the upper part of the rear side of the casing, a cantilever is fixedly connected to the center of the upper part of the front side of the vertical box, and a detection mechanism for performing optical detection on a wafer is arranged between the cantilever and the upper wall of the casing. A circular movable hole is formed in the upper wall of the machine shell, the central axis of the movable hole is located on the central axis face of the cantilever, and an alignment mechanism used for adjusting the position of the wafer is arranged in the movable hole. By arranging the cleaning assembly and adopting a closed-loop design combining blowing and suction, the invention has the following remarkable beneficial effects: firstly, the structure forms an air curtain barrier with directional flow through the synergistic effect of positive-pressure blowing and negative-pressure suction, not only can dust on the mirror surface of the optical probe be continuously removed, but also pollutants can be actively discharged from the inside of equipment, so that the cleaning efficiency is greatly improved; the secondary pollution is fundamentally avoided, and the thoroughness and reliability of cleaning are greatly improved.

The embodiment of the invention provides a small target dynamic anti-interference identification method and system based on standard-loaded multi-sensor fusion, and the method comprises the steps: collecting multi-source data of a port channel through a standard-loaded optical detection terminal, a millimeter-wave radar and an AIS device; performing visual enhancement and radar anti-interference processing on the multi-source data, and extracting a small target recognition result based on the image and the radar; aligning a multi-source identification result with AIS data under a unified space-time reference, and completing multi-source data trajectory association at an edge computing node by adopting a joint probability data interconnection algorithm optimized by a mahalanobis distance; and predicting the target trajectory at the cloud and feeding back the target trajectory to the edge node for optimization association, and integrating a result to output a small target dynamic identification and tracking result. According to the method, through cooperative processing of visual enhancement and radar anti-interference, and in combination with a cloud-side cooperative fusion architecture, the accuracy and robustness of small target identification in a low visual environment are effectively improved, and the problems of missing detection and false detection of a traditional single sensor in a complex scene are solved.

The invention relates to a method for establishing a spectrum library, a method and device for monitoring thickness and polishing equipment. The method for establishing the spectrum library comprises the following steps: acquiring an actually measured energy reflectivity spectrum of a sample wafer based on an optical detection module, acquiring a first electric field reflectivity of incident light of the optical detection module on an interface between the grinding liquid and a first grinding layer of the target sample wafer and a second electric field reflectivity of the incident light on an interface between the first grinding layer and a first substrate layer of the target sample wafer; based on the first electric field reflectivity, the second electric field reflectivity, the wavelength of the incident light, the refractive index of the incident light on the grinding layer and the thickness of the grinding layer, establishing a theoretical total electric field reflectivity model; obtaining a theoretical energy reflectivity model based on the theoretical total electric field reflectivity model; based on the theoretical energy reflectivity model, theoretical energy reflectivity spectrums corresponding to different grinding layer thicknesses are calculated to generate a spectrum library. According to the invention, the efficiency of establishing the spectrum library can be improved, and meanwhile, a finer spectrum library can be obtained.

The invention discloses a submarine cable detection and inspection method and system based on optomagnetic fusion. The method comprises the following steps: S1, respectively acquiring magnetic detection data and optical detection data through a magnetic sensing module and a camera module; s2, a data resolving transmission module establishes an identification framework for the preprocessed detection data and generates a result set; the data resolving and transmitting module performs probability assignment on the two identification frameworks according to a D-S evidence theory method, and confidence intervals are obtained respectively; the data resolving and transmitting module calculates the similarity between the two pieces of evidence, and if the similarity is lower than a preset threshold value, the result set is updated; s3, the data resolving and transmitting module fuzzifies the confidence interval and the result set according to a preset fuzzy rule to obtain a fuzzy set and confidence coefficients of the two kinds of detection data; and S4, a data solution transmission module carries out data fusion according to the confidence coefficients of the two kinds of detection data to obtain a final detection result. According to the invention, seamless integration of two kinds of data is realized, and the detection precision and efficiency are significantly improved.

The invention provides an inertial navigation aided navigation positioning method and system, and the method comprises the steps: calculating the coordinate of each navigation satellite in an ECEF coordinate system according to the satellite ephemeris of a satellite navigation system; according to the navigation satellite coordinate and the inertial navigation system positioning result, the azimuth angle and the pitch angle of the navigation satellite relative to the optical detection equipment under the ENU coordinate system are solved, and the navigation satellite is tracked; acquiring star maps collected by the optical detection equipment, matching the star maps through a star map recognition algorithm, resolving a coordinate transformation matrix between two continuous frames of star maps, and recognizing fixed stars and satellites in the star maps based on the transformation matrix; converting the identified fixed star in the field of view into an ECEF coordinate system, calculating an observation angular distance between the fixed star and the satellite, and calculating a satellite observation vector in the ECEF coordinate system according to the observation angular distance; and performing error correction on the positioning result of the inertial navigation system based on the satellite observation vector. Through the scheme, the positioning precision of the inertial navigation system can be improved, and the influence of interference deception signals is reduced.

The invention discloses an anti-strong-light polarization detection analysis device and method based on dual polarization modulation, and relates to the field of optical detection, and the device comprises a dual polarization modulation imaging system and an analysis system. The dual-polarization modulation imaging system is arranged on a light path where a measured target is located, and the dual-polarization modulation imaging system is connected with the analysis system; the dual-polarization modulation imaging system is used for acquiring to-be-modulated light rays of a detected target received from different detection angles, performing rotation polarization filtering on the to-be-modulated light rays of the detected target at different detection angles twice, and acquiring to-be-analyzed data at different detection angles; the analysis system is used for analyzing and screening the to-be-analyzed data at different detection angles to obtain a target image; according to the invention, effective inhibition of strong light is realized through the dual-polarization modulation imaging system, the analysis system analyzes and screens the images after dual-polarization filtering at different detection angles, a high-quality target image is obtained, and the accuracy and reliability of a detection result are improved.

The invention discloses a low-altitude conduction air monitoring anti-fusion perception and control method and system, and belongs to the technical field of target detection and tracking, and the method comprises the steps: obtaining the active position report information of an aircraft, obtaining an active detection data set, carrying out the time-space correlation matching, and generating a to-be-recognized target set; calling high-definition optical detection equipment to track a target, fusing pre-acquired real-time meteorological environment data to enhance the tracking process, generating enhanced target feature data to perform target attribute recognition, and when a target attribute recognition result is an illegal target, performing target attribute recognition by combining the real-time meteorological environment data and a preset knockdown area. And generating a self-adaptive countering decision instruction, and driving countering equipment to execute countering operation. According to the method, the active report information and the active detection data are fused to identify the target, and the real-time meteorological data are combined to carry out feature enhancement and self-adaptive countering decision means, so that the low-altitude illegal target can be identified and handled in an all-weather and high-precision manner.

The application discloses an infrared long-distance space adjacent target super-resolution method, wherein the method comprises the following steps: S1, analyzing the imaging characteristics of a long-distance target optical detection system and the imaging characteristics of space adjacent multiple targets, modeling point target imaging, and generating a simulation image dataset; S2, initializing the input simulation image based on linear mapping; S3, realizing infrared space adjacent target super-resolution modeling by adopting a sparse reconstruction algorithm, and constructing a deep unfolding network framework; S4, sequentially passing the initialized image through each stage of the deep unfolding network; S5, constructing a GPU training environment, setting a data loader, a model and an evaluator configuration file, training the model, applying the trained model to a test set, generating a high-resolution image, extracting target coordinate information by post-processing and inputting the target coordinate information into the evaluator, obtaining evaluation indexes based on infrared long-distance space adjacent targets, and calculating an average detection rate.

An optical detection device with a protection function comprises a main control unit which is in communication connection with an optical detection module and an unmanned aerial vehicle deployment unit, and the main control unit is configured to process and display target information and receive a control instruction; dynamic parameters of an external target are obtained through an optical detection module, and an unmanned aerial vehicle interception instruction is generated; the optical detection module is configured to actively scan a target area and obtain space parameters of a target; the light beam guiding mechanism is used for dynamically adjusting the laser emission direction and the optical imaging view field. The unmanned aerial vehicle deployment unit comprises an unmanned aerial vehicle storage mechanism and a launching mechanism; and the communication module realizes real-time data interaction between the main control unit and the unmanned aerial vehicle. According to the device, on the basis of the function of detecting and tracking multiple targets at the same time, the unmanned aerial vehicles are launched through the unmanned aerial vehicle storage unit, and the multiple unmanned aerial vehicles can be guided to track and strike multiple flying targets.

The invention relates to the technical field of optical detection, in particular to a photoelectric pod multi-optical-axis consistency detection device and method and a calibration method. A photoelectric pod multi-optical-axis consistency detection device comprises a detector, a two-dimensional displacement table, a first spectroscope, a second spectroscope, a first lens cone, a second lens cone, a cross target and a collimator. The collimator, the first lens cone and the detector are connected in sequence; in the first lens barrel, a second spectroscope is mounted at the end close to the detector, and a first spectroscope is mounted at the end close to the collimator, so that the pod to be detected is in light path connection with the second spectroscope; the outer wall of the first lens cone close to the collimator is connected with one end of the second lens cone through a pipeline; wherein the cross target is provided with a light source; the outer wall of the first lens barrel close to the detector end is connected with the two-dimensional displacement table. According to the invention, software compensation after measurement of deviation angles of the visible detector, the infrared detector and each optical axis of laser is realized, the dependence on a high-precision mechanical structure is reduced, and the manufacturing cost is reduced.

The acousto-optic combined underwater target autonomous searching and positioning method comprises the following steps: establishing an underwater target searching platform based on an underwater unmanned vehicle; pre-establishing an underwater target detection model on the underwater target searching platform; inputting a given target type, a task area and a target quantity into a task decision system; the task decision-making system firstly identifies information transmitted from the sonar system; the task decision system identifies information transmitted from the optical camera system; the task decision-making system judges the suspicious target object; the underwater unmanned vehicle continues to search or return voyage on the given target type, task area and target number, or acousto-optic combination is carried out in a return voyage target detection mode, and sonar detection and optical detection are combined far and near, and large-range preliminary screening and approaching recognition confirmation are combined; the underwater target searching efficiency is improved, the detection and discovery capability is also improved, and the problems of low searching efficiency, difficult positioning and the like are solved.

The invention provides an inter-satellite laser communication system based on visual positioning assisted link establishment and a link establishment method. The system comprises a laser communication machine which comprises a processor and an optical head and is used for realizing laser link establishment and laser communication; the optical detection camera, the rotary table and the sensing positioning module form a visual positioning subsystem which is used for observing and positioning a passive end target, namely a communication opposite end satellite; the measurement and control data transmission module is used for receiving data and instructions from the ground and sending satellite telemetry data; and the satellite service management module is used for realizing task management and control management of a load single machine. The inter-satellite laser communication link establishment method is suitable for inter-satellite laser communication link establishment of satellites in orbit, especially inter-satellite laser communication link establishment in under-communication and high-dynamic scenes. By using visual positioning assistance, the dependence on a ground station and external data can be reduced, the laser link establishment time is shortened, the use scene is expanded, and the stability and robustness of a satellite laser communication system are enhanced.

The invention relates to the technical field of atmospheric environment monitoring and optical detection, in particular to an aerosol vertical profile correction method and device for aerosol scattering coefficient and laser radar combined observation, and the method comprises the steps: S1, collecting echoes according to an integral window, and obtaining distance correction echoes; s2, collecting a height scattering coefficient greater than or equal to 2, and aligning the height scattering coefficient with a distance correction echo grid / time; s3, background deduction, resolution matching and invalid height elimination are carried out to obtain preprocessed echoes; s4, generating an initial scattering coefficient profile; s5, identifying layered boundary division layer intervals; s6, establishing a correction factor model for each layer, adding overlap compensation to the near earth, and introducing a system constant; s7, taking the consistency of the total height of the theoretical echo and the preprocessed echo as a target, taking the consistency of multi-height scattering coefficients as a constraint, and carrying out joint solving to obtain correction factor distribution; and S8, outputting a correction profile, boundary information and a parameter set. According to the method, system constants and overlap compensation are solved by preprocessing echo layering scale gradient correction factors through combination of full-height consistency and two-height actual measurement constraints, and a correction profile is stabilized.

The application discloses an intelligent early warning method and system based on multi-source data fusion, relates to the technical field of early warning management, and comprises the following steps: acquiring hydrological time sequence data, underwater acoustic voice time sequence data and optical detection time sequence data of a target monitoring area, and generating a first trigger signal; in response to the first trigger signal, obtaining preliminary judgment attribute data and sound source positioning data; based on the sound source positioning data, acquiring updated image data sequence and updated turbidity data sequence; comparing the updated turbidity data sequence with a first turbidity threshold, and determining a target detection path from a plurality of preset detection paths according to a comparison result; correlatively analyzing first fine detection data or second fine detection data with real-time updated hydrological time sequence data, and generating trend deduction data; and based on the first fine detection data or the second fine detection data and the trend deduction data, generating hierarchical early warning result data and outputting the same. The application has the effect of improving early warning efficiency.

The invention discloses an optical-ultrahigh frequency combined sensing GIS partial discharge monitoring system and method. The system comprises an ultrahigh frequency detection unit, an optical detection unit and a signal composite output unit, wherein the ultrahigh frequency detection unit and the optical detection unit are arranged in parallel; the ultrahigh-frequency detection unit is used for detecting ultrahigh-frequency electromagnetic signals in the GIS cavity; the optical detection unit comprises a large-view-field optical lens, an optical conduction assembly and a photoelectric converter which are connected in sequence; the large-view-field optical lens is formed by combining a plurality of aspherical lenses, and the large-view-field optical lens is used for converging optical signals in the GIS cavity; the optical conduction assembly comprises an optical fiber bundle which is used for receiving and conducting optical signals; the photoelectric converter comprises a silicon photomultiplier tube or a photomultiplier tube, and is used for converting a weak optical signal into an electric signal; the signal composite output unit is respectively connected with the ultrahigh frequency detection unit and the optical detection unit, and the signal composite output unit is used for outputting signals of the ultrahigh frequency detection unit and the optical detection unit.

The present application discloses a fast quantum magnetic measurement method and device based on multi-layer perception, which relates to the field of electrical quantum sensing. It includes: constructing a mixed distribution function model to be trained and its training set; based on the training set, training the mixed distribution function model to be trained to obtain a mixed distribution function model; performing microwave variable frequency scanning within a preset microwave sweep frequency range, recording the fluorescence intensity of the diamond NV color center corresponding to different microwave frequencies, and recording the points between the falling edge point of the first deviation from the fluorescence intensity peak and the rising edge point of the first deviation from the fluorescence intensity trough as valid points; based on the microwave frequency value corresponding to the valid point and the mixed distribution function model, fitting the mixed distribution function of the magnetic field to be measured; obtaining the frequency value of the trough position in the mixed distribution function of the magnetic field to be measured, and calculating the magnetic field intensity to be measured. This solves the problem that the existing optical detection magnetic resonance technology cannot meet the demand for high sampling rate of the power system in terms of sampling rate.

The application provides a transmission type optical cryogenic probe station, which mainly comprises a vacuum cavity and a detection frame, the vacuum cavity is provided with a flange opening for light transmission; the detection frame is mainly designed by embedding a bearing and a sample supporting plate, the sample supporting plate is controlled by a motor to rotate by any number of turns, and a sample groove is designed in the form of a through hole to ensure that light can pass through the sample groove. The application realizes transmission type optical detection, when the detection sample needs to be replaced during the detection process, the detection sample can be replaced by only controlling the sample supporting plate to rotate, without manually changing the probe position, without re-performing the complicated processes of rewarming, back pressure, vacuumizing and cooling, thereby greatly reducing the complexity of the detection process and shortening the detection time.

The present application provides a state switching circuit, a photoelectric detection array, and an optical detection system. The state switching circuit includes: a resistive voltage dividing circuit that leads out a first output terminal from at least one voltage dividing point among the resistors in the line between the voltage supply terminal and the ground terminal; the resistive voltage dividing circuit includes at least one first controllable switch located in the line, which is used to be in a corresponding switch state according to the received external control signal and the applied voltage, so as to form a voltage dividing signal at the first output terminal; a second controllable switch of the voltage output circuit is coupled to the first output terminal, and is used to be in a corresponding switch state according to the voltage supplied by the power supply terminal and the voltage dividing signal, so as to control the output of the second output terminal, and output a state switching signal to the photodetector coupled to the second output terminal to control the working state of the photodetector. The solution of the present application can reduce the static power consumption, and can cooperate with the optimization solution to simplify the circuit structure and optimize the circuit area and power consumption.

The present application relates to the field of optical sensing technology, and provides a transparent tomographic imaging method based on an edge convex lens array, which receives an incident light source at a first end face to generate a first light signal, and the first light signal is transmitted along the first end face to a circumferential side face. The first light signal is encoded by a convex lens array structure arranged at the circumferential side face, and at least one group of second light signals is obtained after encoding. The second light signal is sensed by at least one optical detection module. The optical detection module transmits the second light signal to a signal reconstruction module for tomographic reconstruction to obtain a third light signal. The present application also discloses a sensing device. The method and the sensing device can transfer the sampling and encoding process of the light signal from a plane to an edge region of an imaging plane, realize angle-related optical encoding of the in-plane propagating light signal, and obtain an imaging result through tomographic reconstruction. Thus, the technical problems of limited transparency and limited resolution in the existing transparent imaging scheme are overcome.

The invention discloses an absolute value encoder of an optomagnetic dual-detection module collaborative layout structure, and relates to the technical field of position detection, the encoder enables an optical coded disc and a magnetic ring to be coaxially installed on a mechanical base, and an optical detection subsystem and a magnetic detection subsystem are collaboratively arranged around a detected rotating shaft; collecting a magnetic initial position on a calibration platform by taking an optical absolute position as a reference, and storing a magnetic compensation mapping and a signal quality threshold value into a nonvolatile memory; in the operation period, the signal processing unit obtains an optical absolute position and a compensated magnetic position, the sampling state is divided into a normal state, an optical degradation state, a magnetic interference state and a two-way abnormal state according to the position difference value and the optical and magnetic signal quality, and the optical absolute position or the compensated magnetic position is selected to be output accordingly. And a frozen position or a safe position is output in a double-path abnormal state, and a health state field is attached, so that integration of position measurement, self-diagnosis and function safety is realized.

The utility model discloses a device for optically detecting a sample, which structurally comprises a cabinet, a detection platform, a mechanical platform, an analyzer and a base platform, the detection platform is mounted at the upper end of the cabinet, the cabinet is fixedly embedded at the upper end of the base platform, the mechanical platform is mounted at the upper end of the cabinet, the analyzer is fixedly embedded at the upper end of the mechanical platform, and the detection platform is positioned right below the analyzer. The bottom of the sample is in contact with the top point of the triangular block in the supporting structure, so that the upper end of the triangular block extrudes the bottom of the lens sample under the elastic force of the rubber block, easy sliding during contact is prevented, inclination caused by gaps generated by dust particles on a contact surface due to an overlarge contact surface is avoided, and the influence on the horizontal state of the lens sample is prevented; a transmission plate is pulled, the transmission plate is loosened under the elastic force of a spring and then is pressed downwards, the upper side of the outer end of the lens sample is extruded, and a mutual supporting effect is formed by the extrusion and the supporting of a middle supporting structure of the lens sample, so that the effect of fixing the lens sample is achieved, and the lens sample is prevented from vibrating when the horizontal plate moves.

An optical detection and tracking device for a target includes a control board, a frame, a turntable, an optical camera, and a light-transmitting cover. The turntable is driven by an azimuth motor to achieve 360° horizontal rotation, and the optical camera is driven by a pitch motor to achieve pitch scanning. The control board can switch between scanning mode-1 and tracking mode-2. In scanning mode-1, the azimuth and pitch motors rotate continuously or in steps, driving the optical camera's field of view to detect the target. In tracking mode-2, the azimuth and pitch motors are deflected to keep the target within the optical camera's field of view. The device obtains the target's projected distance by constructing an X / Y coordinate system within the field of view angle α, and drives the motors to deflect based on the difference, offsetting the target towards the center of the field of view to achieve tracking. Furthermore, a single scanning frame or multiple nested scanning frames can be constructed within the field of view, and offset signals are triggered by the scanning frame boundaries to achieve progressive and precise tracking. This device can automatically keep the target centered in the field of view, providing a basis for laser ranging and strong light illumination, and is adaptable to different optical structure designs.

An in-cavity wafer centering system and a working method thereof, the in-cavity wafer centering system comprising: a main cavity; a wafer clamping platform located in the main cavity, a surface of the wafer clamping platform being adapted to place a wafer; a plurality of displacement holes penetrating through the wafer clamping platform; a plurality of ejectors respectively located in the displacement holes, the ejectors being adapted to reciprocate in the displacement holes, so that a top head of the ejectors changes between a position higher than an upper surface of the wafer clamping platform and a position lower than the upper surface of the wafer clamping platform; a plurality of optical positioning units, each optical positioning unit comprising: an optical detection component; an optical receiving component, the optical detection component being adapted to emit detection light to the optical receiving component, the detection light being adapted to partially irradiate an edge of the wafer in the main cavity; a correction unit, the correction unit being adapted to correct a position of the wafer according to light information obtained by the optical receiving component. The in-cavity wafer centering system can accurately position the wafer in the main cavity, and improve process repeatability.

The invention discloses a laboratory mouse calcium imaging wireless monitoring method, system and monitoring device.The method comprises the steps that an optical detection structure is arranged beside a laboratory mouse intracranial calcium indicator marking area, and a fluorescence signal is captured; constructing a calcium imaging original data mapping model, and converting the fluorescence signal into initial calcium imaging data; pure calcium imaging data are obtained through adaptive filtering and noise reduction, and lightweight compression is carried out based on time sequence periodic characteristics; packaging transmission data through a low-power-consumption wireless transmission model of a plurality of groups of preset independent channels; after the external receiving terminal decompresses, visual information is generated through a calcium imaging reduction model; the system and the equipment correspond to the method, and are integrated with an optical detection structure, a signal processor, a wireless transmitter and other core components; the device thoroughly gets rid of the constraint of a long optical fiber, is miniaturized, low in power consumption, resistant to interference and good in biological compatibility, guarantees the accuracy of monitoring data and experimental continuity, and is suitable for related research of brain activities of laboratory mice.

The invention discloses an atmospheric background radiation modeling simulation method and device for air optical detection, and belongs to the field of optical simulation. The method comprises the following steps: determining whether a detection scene is a cloud scene or not according to whether the detection scene has a cloud layer or not; if yes, generating a target three-dimensional cloud field by adopting a particle system; according to the initial environment parameters, respectively establishing a first lookup table of the radiance of the clear sky scene about the detector height and the pixel line-of-sight zenith angle, and establishing a second lookup table of the radiance and the transmittance of each segment path of the cloud scene about the detector height and the detection line-of-sight zenith angle; determining air data in all the detected pixel data according to the periodic height and the visual geometric information of the detector; and searching a lookup table of a corresponding scene according to the air data, and determining a radiance value used for generating a radiance image in front of a mouth. According to the invention, complex air optical visual simulation can be realized.

The long-distance infrared detection system with full entrance pupil fill factor and laminated array structure belongs to the field of optical detection technology. The prior art has complex structure and weak receiving light intensity. From the direction of incident infrared light to the direction of outgoing light, the front laminated lens array, the rear laminated lens array, the array rear stop and the rear lens group are arranged along the optical axis in sequence; the front laminated lens array and the rear laminated lens array are each composed of n*n sub-lenses a and sub-lenses b which are laminated; the cross sections of the sub-lenses a and the sub-lenses b are all square; the front laminated lens array and the rear laminated lens array form a lens array group, the entrance pupil of the lens array group is located at the incident mirror surface of the front laminated lens array, and the exit pupil of the lens array group overlaps with the position of the array rear stop; the front laminated lens array can be radially misaligned with the optical axis by ±Δ1, and the array rear stop is misaligned in the direction opposite to the misalignment direction of the front laminated lens array by ±Δ2. The present application can be used for searching and identifying infrared targets in the civil field.