73 results about "Optical scanning" patented technology

A mirror device includes a mirror portion, a pair of first support portions, a pair of movable frames, a pair of second support portions, a drive portion having a plurality of piezoelectric actuators, a fixed frame, a pair of connecting portions connecting the drive portion and the fixed frame, and a piezoelectric sensor that generates a signal corresponding to swing of the mirror portion around the first axis or the second axis. The piezoelectric sensor is electrically isolated from the plurality of piezoelectric actuators. The plurality of piezoelectric actuators and the piezoelectric sensor are each formed of an upper electrode, a piezoelectric film, and a lower electrode. The upper electrodes of the plurality of piezoelectric actuators are connected in common via a first metal wire. The lower electrode of the piezoelectric sensor is connected to a second metal wire that is electrically isolated from the first metal wire.

A fundus imaging device has a fixation optical system, an OCT optical system, an imaging optical system, and a controller. The controller is configured to acquire a focus evaluation value based on a slit image formed by slit-shaped illumination light on a two-dimensional imaging element of the imaging optical system in a case where an optical scanner of the imaging optical system deflects in a predetermined direction. The controller is configured to perform diopter correction control of the OCT optical system by driving a first focus adjustment unit of the OCT optical system based on the focus evaluation value.

Embodiments of the present disclosure relate to an optical scanning system, a laser radar and a vehicle. The optical scanning system includes a polarization converter, a polarization beam splitter, a phase delay element, and a scanning element. The polarization converter is configured to receive a first light having a first polarization state and a second light having a second polarization state and emit a third light having the second polarization state. The polarization beam splitter is configured to reflect the third light. The phase delay element is configured to receive the third light and emit a fourth light. The scanning element is configured to receive the fourth light and emit a fifth light. The phase delay element is further configured to convert the fifth light into a scanning light having the first polarization state, and the polarization beam splitter is further configured to transmit the scanning light.

To provide an optical scanning device that can accurately adjust lens distortion with a simple configuration. [Solution] The optical scanning device comprises an fθ lens for focusing light onto an object to be irradiated, a housing section having an opening for housing the fθ lens, a cover section that closes the opening of the housing section and allows light emitted from the fθ lens to pass through, and an adjustment section that adjusts the amount of rotation of the fθ lens around a pivot axis extending along the thickness direction of the fθ lens. The adjustment section includes a head protruding outward from the side wall of the housing section and a screw section extending from the head along a first direction toward the fθ lens through the side wall, and has a male screw member that rotates the fθ lens by moving the tip of the screw section along the first direction in response to the rotation of the head. The cover section protrudes so as to abut against the outer circumference of the head and has an arm section that generates a click sensation in the head in response to the rotation of the head.

Provided is a swing control device for an optical scanning device, wherein the swing control device swings, around a swing axis, a movable member provided with a reflection mirror for scanning measurement light on the surface thereof. A monitor light receiving element, which irradiates a monitor light reflection member provided on the rear surface of the movable member with monitor light and receives the reflected monitor light, is configured with a one-dimensional image sensor disposed in a direction intersecting the swing axis. The swing control device comprises a swing control unit that controls the swing of the movable member on the basis of the swing characteristics of the movable member detected on the basis of the peak position of the monitor light detected by the one-dimensional image sensor. In the monitor light reflection member, a high reflectance region having a high reflectance and a low reflectance region having a reflectance lower than that of the high reflectance region are formed along the direction intersecting the swing axis, and the area SA of the high reflectance region is set to be smaller than the area SB of the low reflectance region.

The present invention relates to an optical scanning antenna (10) comprising: - a light source (12) generating a beam, - a dividing unit (14) that divides the generated beam into N sub-beams, - a control unit (16) for controlling the relative phase of the N sub-beams, - an integrated photonic circuit (11) comprising a set of extractors (34), the extractors (34) being arranged in a first two-dimensional periodic array, each extractor (34) being able to extract one respective sub-beam from a plane of the integrated photonic circuit (11), - an array of lenses (20) arranged in a second two-dimensional periodic array, the first array and second array having the same arrangement, and - a movement unit (22) allowing the first array and the second array to be moved with respect to each other.

This invention proposes a high-dynamic real-time yaw rate adjustment and image shift compensation optical scanning imaging method and device, belonging to the field of optical remote sensing technology. It solves the technical problem of ensuring the quality of satellite on-orbit imaging. The method includes: using a combined imaging mode of vertical orbit scanning with a tilting mirror and pitch return to perform high-dynamic vertical orbit wide-area scanning imaging, determining the satellite imaging motion law, and establishing a high-precision multi-coordinate system object-image geometric mapping and image shift calculation model to calculate the variation law of image shift compensation parameters; measuring satellite orbit information, attitude information, and camera optical axis pointing information through a high-precision sensor, predicting the camera optical axis motion law using filtering, and substituting it into the image shift calculation model to obtain the line frequency; and achieving graded yaw rate adjustment through fixed yaw rate adjustment, curve fitting, and adjustment of the installation angle. This invention is applied to optical remote sensing satellites with high-dynamic vertical orbit wide-area scanning imaging, achieving on-orbit image shift compensation imaging that balances wide-area coverage and high resolution.

The application provides an optical scanning system, which comprises a polarization converter, a polarization beam splitter, a phase delay element and a scanning element. The polarization converter receives first light with a first polarization state and second light with a second polarization state, and is configured to convert the polarization state of the first light into the second polarization state and to emit the first light and the second light together as third light with the second polarization state. The polarization beam splitter receives and reflects the third light. The phase delay element is configured to receive the third light and emit fourth light with a third polarization state. The scanning element is configured to receive the fourth light and emit fifth light with a fourth polarization state towards the phase delay element, and is further configured to change the emission angle of the fifth light. The fifth light emitted from the scanning element is converted into scanning light with the first polarization state by the phase delay element, and the polarization beam splitter is configured to transmit and emit the scanning light. The application further provides a laser radar using the optical scanning system and a vehicle.

We provide a compact, portable AI-based diagnostic scan and analysis device that improves healthcare delivery in diverse clinical and emergency settings. [Solution] The portable AI-based diagnostic scan analysis device 100 includes a system initialization interface 101 and a power control and startup hardware module 102 for establishing operational readiness and controlled power distribution. The diagnostic scan interface hardware module 103 acquires image, biosignal, or optical scan data, and the user input and parameter selection hardware module 104 enables the setting of diagnostic parameters. System safety is ensured by the error detection and safety monitoring hardware module 105, after which the scan is initiated by the scan execution trigger hardware module 106. Diagnostic information is presented by the data display and status interface hardware module 107, and processed by the active diagnostic processing hardware module 108 by executing an artificial intelligence algorithm.

Optically Scanned Antenna and System Comprising Such an Antenna The present invention relates to an optically scanned antenna (10) comprising: - a light source (12) generating a beam, - a beam splitter unit (14) dividing the generated beam into N sub-beams, - a control unit (16) for the relative phase of the N sub-beams, - an integrated photonic circuit (11) comprising an array of extractors (34), the extractors (34) being arranged in a first two-dimensional periodic grating, each extractor (34) being adapted to extract a respective sub-beam from a plane of the integrated photonic circuit (11), - a lens array (20) arranged in a second two-dimensional periodic grating, the first and second gratings having the same arrangement, and - a displacement unit (22) for displacing the first and second gratings relative to each other. Figure for the abstract: Figure 1

This invention provides a test data analysis method and server for circuit board testing. The method first acquires the electrical signal response waveform sequence and regional optical scanning image of each test point on the circuit board. Next, it distinguishes the response characteristics of the data, generating a set of directional markers for each point. Then, it calls a pre-set multi-path exploration model to independently mine the marker set, generating a signal waveform depth characterization map and an optical image local structure characterization map corresponding to each directional path. Based on these maps, it performs cross-path feature comparison, filters out the dominant feature evolution paths, and constructs their path feature association maps. Finally, it determines the type and location distribution of defects based on these maps and generates test optimization instructions containing point identifiers and timing adjustment identifiers to guide the test equipment to dynamically adjust the test process. This invention achieves in-depth analysis of circuit board test data and adaptive optimization of the test process.

An optical scanning device (12) includes a casing (12a), a transmissive member (52), a linear member (54), a drive portion (55), guide rails (61), a pair of cleaning holders (511), a cleaning member (53), a detecting portion (56), and a control section (90). The control section (90) controls driving of the drive portion (55). The control section (90) performs control so that, during execution of a cleaning mode, upon detection by the detecting portion (56) that one of the pair of cleaning holders (511) has reached one end of a movement path of the one of the pair of cleaning holders (511), an outward operation is started, and upon detection by the detecting portion (56) that the other of the pair of cleaning holders (511) has reached one end of a movement path of the other of the pair of cleaning holders (511), a homeward operation is started.

In projectors, the goal is to achieve a balance between color gamut and brightness while reducing color breakup. [Solution] The projector comprises a first light source device that emits first-color light, a first liquid crystal panel having multiple lines, and a first optical scanning device that scans the first-color light along the column direction. In each of the multiple subframes included in one frame, voltages corresponding to different color data are written for each line, from the first line to the last line, and the first-color light is scanned from the first line to the last line. During the period in which voltages corresponding to red data are written, red light is emitted from the first light source device as first-color light. During the period in which voltages corresponding to green data are written, green light is emitted from the first light source device as first-color light. During the period in which voltages corresponding to blue data are written, blue light is emitted from the first light source device as first-color light.

A saffron stem extractor device is provided. The device is comprised of a saffron stem extractor device designed to facilitate the harvesting of saffron stems from crocus flowers while the flowers remain attached to their bulbs. The device comprises a cutting mechanism configured to sever saffron stems with minimal disruption, wherein the cutting mechanism may include a laser system directed by at least one redirecting element such as a mirror or optical scanner, or a mechanical blade system adapted to various cutting geometries. A vacuum tube composed of a transparent material is used to encase the saffron stems prior to cutting, while a vacuum motor generates negative pressure to extract the severed threads into a collection chamber. A viewing element such as a digital camera or optical magnifier is included for precise visual targeting and is wirelessly linked to a smart device mounted to the apparatus for real-time imaging feedback.

This application relates to the field of optical measurement technology, and in particular to a thickness detection method and a non-contact optical scanning system, comprising: acquiring a two-dimensional characterization image of the sample to be measured; determining an effective detection area; planning a detection path; acquiring raw thickness data of multiple feature sampling points along the detection path; identifying candidate anomalies among the feature sampling points, wherein candidate anomalies are feature sampling points whose spatial change rate exceeds a set threshold; after identifying candidate anomalies, a first correction process can be executed, including: performing region segmentation on the two-dimensional characterization image to generate an attribute mask for distinguishing regions with different physical properties; extracting local neighborhood attribute features of the corresponding positions of candidate anomalies in the attribute mask; correcting the attributes of candidate anomalies; and filtering the raw thickness data of multiple feature sampling points based on the corrected attributes to generate the thickness of the sample to be measured. This application can demonstrate extremely high efficiency in high-precision measurement and large-scale automated production.

Various embodiments are presented for a method of wide-field self-referenced interference for OCT imaging, that allows for a focus on the cornea over a large diameter while reducing the number of artifacts in the signal. To accomplish this, the method includes operating a super luminescent diode to emit a light, using that light to illuminate an interferometer, collimating the light, and coupling the collimated light to an optical scanner and lens to produce a probing beam. The method also includes directing the beam through the lens onto the anterior corneal surface of the cornea and creating an incident angle between the probing beam and the anterior corneal surface. Finally, the method includes using the lens to ensure the beam is perpendicular to the corneal surface with the incident angle at less than two degrees, focusing from the center to the periphery of the corneal surface, aligning the beam with the reflective corneal surface to generate a self-referencing signal, and using the self-referencing signal to generate self-referenced interference. The self-referenced interference is detected with a spectrometer to generate a high-resolution image of the cornea over a large diameter while reducing the number of reflection artifacts experienced in typical OCT system. Additionally, a hybrid dual-path and self-referenced imaging method is disclosed in which an optical shutter in the reference arm enables sequential acquisition of conventional OCT and localized self-reference apex imaging, followed by fusion into a composite artifact-free OCT image.

The present application relates to wafer detection technical field, especially to the annular scanning device and rotating sample stage for wafer defect detection.The annular scanning device includes mounting frame, detection structure and lofting structure;The detection structure includes detection cover;The detection cover is provided with annular track and illumination assembly;The optical scanning detection assembly is arranged on the annular track;Two ends of the optical scanning detection assembly are provided with detection piece one, and the middle part is provided with detection piece two;The lofting structure includes lofting cylinder;Lofting station is arranged on the lofting cylinder;The positioning cleaning frame is arranged on the lofting cylinder.The present application realizes the partition synchronous scanning of wafer through the cooperation of annular track in detection structure and multi-degree-of-freedom optical scanning assembly and active topography compensation rotating sample stage in lofting structure.Not only the high efficiency, dead angle free defect capture is achieved by annular motion path, but also the precision of new material detection is improved through real-time topography sensing and focus tracking of sample stage.

The application relates to the field of artificial intelligence medical technology and discloses an early esophageal cancer screening method and system based on artificial intelligence, which comprises the following steps: preparing an obtained esophageal epithelial cell sample of a subject into a single-layer cytological smear, generating an original digital pathology image through optical scanning; extracting independent cells therefrom, calculating local spatial moment parameters of the independent cells; determining the geometric principal axis direction and stretching degree of the independent cells based on the local spatial moment parameters; judging whether the stretching degree exceeds the length-width ratio benchmark constant of normal esophageal squamous epithelial cells, if yes, applying a local two-dimensional affine transformation to the independent cells along the geometric principal axis direction to offset the mechanical stretching deformation caused by sampling, and generating calibrated cell image data; inputting the calibrated cell image data into an artificial intelligence classification module, extracting cell pathological features based on a deep convolutional neural network, and outputting a screening diagnosis result. The application offsets cell deformation interference and improves screening accuracy.

An image forming apparatus includes an image forming section, an optical scanning device, an image density sensor, and a control unit. The optical scanning device scans the surface of the image carrying member with light emitted from light sources to form an electrostatic latent image. The control unit can perform light amount calibration to adjust the exposure amount of the light scanning device based on the density of a reference image detected by the image density sensor. The reference image used for light amount calibration has a dot pattern in which as many individual dots as there are light sources are arrayed at regular intervals in the main scanning direction. The dot pattern is formed repeatedly in the main and sub scanning directions. The dots forming the dot pattern are arranged at different positions in the sub scanning direction to be displaced in units of pixels from each other.

Systems and devices for correcting a periodic signal includes receiving index light detection data from an optical scanner, determining a bias error of a moveable mirror in optical scanner based on the index light detection data, determining a phase shift error of the moveable mirror based on the index light detection data, and determining an amplitude error of the moveable mirror based on the index light detection data.

The application discloses a kind of semiconductor chip full life cycle continuous detection method and device, it is related to chip detection field, including, obtain the electromagnetic radiation signal of monitoring chip under chaotic operation mode, construct electromagnetic radiation baseline atlas by topological signal processing, according to electromagnetic radiation baseline atlas, using chaotic sensor real-time acquisition electromagnetic signal and working condition parameter, and carry out nonlinear frequency spectrum difference analysis and generate dynamic electromagnetic anomaly index, according to the comparison result of dynamic electromagnetic anomaly index and preset chaotic threshold value triggers intelligent early warning mechanism, control chip enters self-organizing diagnostic mode and establishes holographic optical reflection benchmark map;The holographic optical reflection benchmark map of the present application is coupled with electromagnetic anomaly and optical scanning closely by phase space reconstruction, accurately identifies the topological interaction of collaborative defect cluster, eliminates the problem of positioning error amplification.

This invention discloses an early warning system and method for peritoneal dialysis infection. The early warning system includes a disposable test card and a detection device. The disposable test card has a sample inlet, a sampling chamber, a reaction chamber, and an observation window that are sequentially fluid-connected. The reaction chamber is pre-filled with a lyophilized metabolic catalytic medium, which includes a concentrated substrate, a metabolic activator, and a signal indicator. The detection device has a housing and a temperature control unit, a photoelectric detection unit, a signal processing unit, and a display unit installed within the housing. The temperature control unit controls the ambient temperature of the reaction chamber during a catalytic incubation period. The photoelectric detection unit periodically performs dynamic optical scanning of the observation window during the catalytic incubation period to obtain a time-series detection signal. The signal processing unit assesses the infection risk based on the time-series detection signal.

The application discloses a PCB and an automatic double-rejection marking system and method thereof, comprising an AOI detection module, an OK plate conveying station, a scrap PCB shunting mechanism, an MES system, a laser marking module, a copper sticker attaching mechanism and an automatic shunting module. The AOI detection module determines whether the PCB is scrapped through high-resolution optical scanning and local electrical property detection; the MES system is connected with the AOI detection module and the shunting mechanism in data, and automatically generates a scrap serial number and records data. The laser marking module ablates characters on the scrap PCB according to the scrap serial number, forming a permanent visual mark that cannot be erased; the copper sticker attaching mechanism attaches a copper sticker beside the characters, forming an electrical short circuit, and realizing automatic failure of electrical property testing. The application solves the problems of unstable ink marking, easy cleaning and tampering, and high false marking rate, and completely eliminates the risk of mixed flow of scrap boards through visual permanent marking and electrical isolation double protection.

By stacking multiple metalens with their microstructure surfaces facing inward, this provides a metalenx that protects fragile microstructure surfaces and suppresses the impact of defects caused by pillar shape errors on optical performance. [Solution] The metalens of the present invention is a metalens having a microstructure surface on which a plurality of microstructures are continuously formed on the light-transmitting surface, and the refractive index for the light is adjusted by the density of the microstructures, wherein the metalens has a plurality of microstructure surfaces, the two outermost of the microstructure surfaces are arranged to face each other, and the metalens is formed integrally such that a base layer is positioned outside the microstructure surfaces, sandwiching the microstructure surfaces.

The application relates to the technical field of image processing, and discloses a smoothing processing method and device of an image, an imaging equipment and a storage medium. The method comprises the following steps: acquiring ultrasonic scanning data and optical scanning data; determining a correlation coefficient weight and a distance weight between the ultrasonic scanning data and the optical scanning data based on the ultrasonic scanning data and the optical scanning data; and performing smoothing processing on the ultrasonic scanning data and the optical scanning data based on the correlation coefficient weight and the distance weight, so as to generate a multi-mode image for ultrasonic scanning and optical coherence tomography. Through the technical scheme, the loss of image features is avoided, the display grain feeling and line feeling of the multi-mode image are reduced, and the imaging quality of the multi-mode image is improved to the maximum extent.

The present application relates to the technical field of submersible sewage pump maintenance, and particularly relates to a submersible sewage pump device with an intelligent water flushing module and a control method thereof, which comprises a pump shell, a pump body, an impeller and a controller, the outer wall of the pump shell is provided with a lateral discharge pipe, and an external discharge pipe is fixedly assembled at the opening position outside the lateral discharge pipe. The submersible sewage pump device with the intelligent water flushing module and the control method thereof are characterized in that a bottom branch pipe is welded and fixed at the lower end of the external discharge pipe, an electrically-controlled flushing head is movably assembled at the opening position of the lower end of the bottom branch pipe, and an electrically-controlled lifting flow guide seat is movably assembled at the opening position of the upper end of the bottom branch pipe. The optical probe on the bottom surface of the bottom suction pipe is used for multi-angle detection, AI technology is used for optical scanning and identification of the bottom deposits, so as to determine the accumulation state of the bottom deposits, accurately control the water flushing flow and angle, and improve the flushing efficiency.