79 results about "Optical scanners" patented technology

In a method for reading identification information inscribed in a wafer (14) in the form of an identification mark (16), at least one measuring beam (24; ML) of an optical measuring device (20; 110), comprising either an optical coherence tomograph (22) or a chromatic confocal distance sensor (110), scans an area (18) of the wafer (14) in which the identification mark (16) is inscribed. The identification mark (16) is recognized from measurement data generated from the scanning of the wafer (14). Based on the recognized identification mark (16), the identification information associated with it is determined.

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.

An ophthalmic apparatus includes an objective lens, an illumination optical system, an optical scanner, a light receiving optical system, and a pupil division member. The illumination optical system includes an illumination diaphragm with one or more openings formed at positions eccentric to an optical axis, and is configured to irradiate slit-shaped illumination light. The optical scanner is configured to deflect the illumination light to guide the deflected illumination light to the eye to be examined via the objective lens. The light receiving optical system is configured to guide returning light, that passes through the objective lens, of the illumination light from the eye to be examined to an image sensor. The pupil division member includes a photographic diaphragm with one or more openings formed at positions eccentric to an optical axis, and is configured to spatially separate optical paths of the illumination optical system and the light receiving optical system.

Method for imaging at least one beam (1) of electromagnetic radiation onto an object (2), wherein the beam (1) is deflected via its beam path (3) by an optical arrangement (4) by means of an optical scanner system (5) of the optical arrangement (4), comprising at least two optical scanners (6), at least twice with a predetermined and / or predefinable variable angle, each time changing the beam path (3) of the beam (1), and the beam (1) is not subject to refraction between each deflection, the beam (1) is also imaged onto the object (2) by means of an imaging optic (7) after its deflection, and a focus area (8) of the beam (1) is placed on and / or into the object (2) by means of the imaging optic (7).by means of the scanner system (5) at least one pivoting movement of a beam segment (9) of the beam (1) exiting the scanner system (5) is generated and the pivoting movement and / or at least a rotational movement (15) about the pivot point (10) causes a movement of the focus area (8) in at least one spatial direction (X, Y) perpendicular to the optical axis of the imaging optics (7), characterized in that during the pivoting movement the pivot point (10) of the beam segment (9) lies in the beam path (3) in the imaging optics (7) and beam shaping is imposed on the beam (1) via its beam path (3) by means of a beam shaping optic (16) by the optical arrangement (4), so that a focus area (8) extended in the direction of the beam path (3) is imaged on and / or in the object (2), which extends over at least a part of the dimension of the object (2) formed in the direction of the beam path (3).

The application provides a magnetocardiogram registration system and method based on optical scanning, and the system comprises a bed body registration module and a CT image registration module. The bed body registration module comprises a first arc-shaped marker and an L-shaped base, and the CT image registration module comprises a second arc-shaped marker which is consistent in shape with the first arc-shaped marker of the bed body registration module. Both the bed body registration module and the CT image registration module are made of non-magnetic photosensitive resin material. Before magnetocardiogram (MCG) acquisition, the two registration modules are digitized by using a handheld optical scanner. According to the bed body registration module, the sensor array coordinate system and the human body coordinate system are aligned. When CT scanning is performed, the image structure of the trunk part of a subject is obtained. According to the CT image registration module, the human body coordinate system and the CT coordinate system are aligned. Correspondingly, the application also provides a registration method corresponding to the system, which significantly improves the efficiency and accuracy of the MCG registration process and promotes the subsequent medical research and application of MCG.

The embodiment of the invention relates to an optical scanner. The optical scanner comprises a polarizing beam splitter, a wave plate and an optical phased array chip. Wherein the polarizing beam splitter is used for dividing incident light source light into first laser with a first polarization state and non-working light with a second polarization state, reflecting the first laser and transmitting the non-working light, and the first polarization state is different from the second polarization state. The wave plate is located on the reflection light-emitting side of the polarizing beam splitter and used for receiving the first laser and emitting second laser with a third polarization state different from the first polarization state and the second polarization state. And the optical phased array chip is used for receiving the second laser and emitting reference light, and the optical phased array chip is also used for changing the emitting angle of the reference light. The embodiment of the invention further relates to a laser detection system with the optical scanner and an automatic driving vehicle applying the laser detection system.

This invention relates to an instrument for cutting human or animal tissue, including an optical coupler. The cutting instrument includes - a femtosecond laser (1), - a shaping system (2) located downstream of the femtosecond laser (1) for forming a phase-modulated laser beam, - an optical scanner (4) located downstream of the shaping system (2), - an optical focusing system (5) located downstream of the optical scanner (4), and - a control unit (6) for controlling the shaping system (2), the optical scanner (4), and the optical focusing system (5). The instrument is characterized in that it further includes an optical coupler (3) between the femtosecond laser (1) and the shaping system (2), the optical coupler (3) including a photonic crystal fiber for filtering the phase-modulated laser beam (21) from the shaping system (2).

A method for upscaling an image includes executing a first subnetwork of an artificial neural network (ANN), with pixels of an image patch of the image as an input layer thereto, to yield (i) a first predicted image patch as an output layer of the first subnetwork and (ii) a first vector output by a source hidden layer of the first subnetwork. The method also includes executing a second subnetwork of the ANN, with pixels of the image patch as input thereto, to yield a second predicted image patch as an output of the second subnetwork, wherein executing the second subnetwork includes concatenating the first vector with the input to a receiving hidden layer of the second subnetwork to yield a concatenated vector. The method also includes determining an upscaled image patch as one of the first predicted image patch and the second predicted image patch.

This invention relates to ranging and triangulation in a multi-sensor scanner. An optical scanner uses a ranging phase to determine a range to a subject, in which a series of image frames is received that collectively contain a ranging spot captured as a reflection off a surface of the subject. The captured ranging spot is time-modulated according to a modulation pattern, and the series of image frames is processed based on the modulation pattern to identify the ranging spot, determining possible locations of the ranging spot within at least one image frame of the sequence. This is followed by a triangulation phase in which the possible locations of the ranging spot are processed to produce a range determination. In an optional implementation, whether the possible locations of the ranging spot are within a reasonable location is assessed based on different device-specific positional offsets in the image frames captured by different ones of a plurality of image capture devices.

The present disclosure relates to a system for reading a barcode independently of image resolution or scale of a captured barcode image. In one embodiment, the system includes an optical sensor and a processor. The optical scanner can scan a barcode, including a plurality of bars and spaces, into a scanned image. The processor can convert the scanned image into binary data. The processor can also calculate numbers of ones (1s) between zeros (0s) in the binary data and determine widths of one of i) each of the bars and ii) each of the spaces based on the calculated numbers of ones (1s). The processor can further calculate numbers of zeros (0s) between ones (1s) in the binary data and determine widths of the other one of i) each of the bars and ii) each of the spaces based on the calculated numbers of zeros (0s).

A flex weight sensing tray system for storing packaged medicine and regulated medical products for taking is disclosed. The system may include an integrated portable open-top tray, a platform having a weight sensing area and an optical scanner. The system may include computer readable instructions that cause a processor to store scanned information, authenticate user credentials, permit the user to enter a user selection to remove products from the tray, calculate a first weight and a second weight using the database and the one or more weight sensors, permit the user to obtain the products when it is determined that (a) the one or more serial numbers corresponds to the user selection and (b) a difference between the first weight and the second weight falls within a tolerance and update one or more product statuses in the database in order to track removal of items from the tray.

The present disclosure relates to a system for reading a barcode independently of image resolution or scale of a captured barcode image. In one embodiment, the system includes an optical sensor and a processor. The optical scanner can scan a barcode, including a plurality of bars and spaces, into a scanned image. The processor can convert the scanned image into binary data. The processor can also calculate numbers of ones (1s) between zeros (0s) in the binary data and determine widths of one of i) each of the bars and ii) each of the spaces based on the calculated numbers of ones (1s). The processor can further calculate numbers of zeros (0s) between ones (1s) in the binary data and determine widths of the other one of i) each of the bars and ii) each of the spaces based on the calculated numbers of zeros (0s).

The invention relates to a method for determining the weld penetration depth in a laser welding process, comprising the steps of: moving a laser beam and a workpiece (10) relative to each other along a feed direction to form a weld seam, and aligning a measuring beam of an optical coherence tomograph to a measuring position (16) on the workpiece (10) to determine the weld penetration depth. In this method, the movement of the laser beam and the workpiece relative to each other is superimposed with a periodic movement of the laser beam along a path of motion that extends at least in a transverse direction (Y) perpendicular to the feed direction (X), and the measuring beam is aligned to a measuring position (16.Y) on the workpiece (10) that is constant in the transverse direction (Y) perpendicular to the feed direction (X).

This analysis device comprises: an optical scanner that irradiates a prescribed position on one surface of an object to be measured and scans said position; a photodetector that detects light reflected from the prescribed position as a result of light irradiation and outputs a detection signal; and an optical scanner control unit that controls the optical scanner. The optical scanner control unit has: a high-speed response circuit that responds with a first time constant; a low-speed response circuit that responds with a second time constant greater than the first time constant; and a changeover switch for selecting either the high-speed response circuit or the low-speed response circuit.

An optical writing device includes: a light beam generator that emits a light beam; and an optical scanner that reflects the light beam emitted from the light beam generator and scans the light beam in a one-dimensional direction, the optical writing device variably controlling an amount of the light beam within a one-dimensional scan based on a light-amount unevenness correction value. The light-amount unevenness correction value when the optical writing device is reused is determined from specific information specific to the optical writing device and use information regarding use of the optical writing device.

A product label printing and inspection system comprising data processing means configured to control the printing of product labels, to control the acquisition and reception of images of the printed labels by image acquisition means such as an optical scanner, and to inspect the printed labels for defects, wherein each printed label conforms to a label format specification for that label, whereby the labels have a common layout and comprise information relating to the printed product located in one or more areas on the label, wherein the data processing means comprise a label inspection module in which a reference image of the label is provided and the inspection module is configured to cause the acquired image to be sequentially compared to the reference image in accordance with predetermined quality control indicators relating to the expected information content and location in the label areas, and wherein if the label does not conform, the label is flagged for review or rejection. The label format specification can be determined and / or stored in the form of an accessible file prior to the printing process. The label format specification can then be retrieved by the label printing and inspection system prior to the printing process using that label format. In one aspect of the invention, the label format specification can be used to provide instructions to be sent to the printer for printing of each label. Thereby, by assembling the specification for label area locations, area information and verification tools and optionally verification tool parameters, the reference image and its associated verification mask can be configured in real time.

The invention discloses a forming process and device for a rivet nut. The device comprises a cold heading forming mechanism, a die assembly, a lubricating oil supply system, a surface treatment module and an automatic control unit. The cold heading forming mechanism completes blank forming through a multi-stage stamping assembly, the die assembly comprises a pre-forming die, a finish machining die and a flange forming die, the lubricating oil supply system achieves uniform oil supply through an oil way distributor, and the surface treatment module improves the surface quality through a polishing wheel set and a deburring cutter. Preferably, the system further comprises an intelligent forming pressure distribution adjusting system, a self-adaptive temperature compensation system and an intelligent surface quality detection system, and pressure, temperature and surface quality are monitored and adjusted in real time through a pressure distribution sensor, a temperature sensor and an optical scanner. The forming efficiency, the finished product quality and the equipment stability are remarkably improved.

A laser surgical apparatus for performing treatment by irradiating a part to be treated by a variable pulsed laser beam is disclosed. This apparatus includes a laser source which emits variable waveform output of treatment laser beam pulses; a flexible beam delivery for delivering the treatment laser beam emitted from the laser source, the flexible beam delivery includes at the distal end automated optical scanner comprising of 2 moving mirrors; and a surgical instrument is connected to an end of the scanner and used for irradiating the treatment laser beam delivered therein to the treatment part. By having the ability to vary the laser's output pulse frequency, pulse width, and pulse energy, multiple tissue effects can be achieved using one laser surgical apparatus.

The invention relates to an optical scanner for detecting objects in a monitoring area, comprising a two-dimensional scanner, a light transmitter for emitting a pulsed beam of light into the monitoring area, a detector for detecting light pulses reflected from an object in the monitoring area, and a continuously rotatable rotating mirror for pivoting the direction of transmission of the beam of light over a polar angle, a continuously rotatable rotor on which at least the light transmitter, the detector, and the rotating mirror are arranged for pivoting the direction of transmission of the beam of light over an azimuthal angle, a stator relative to which the rotor is rotatable about an axis of rotation, and a control and evaluation unit.The optical scanner is characterized by the fact that an optical separation device is arranged between the light transmitter and the detector to suppress optical crosstalk from the light transmitter to the detector, and by a device for contactless transmission of data and energy between the rotor and the stator.

To highly accurately and smoothly perform failure analysis according to an analysis method.SOLUTION: The analysis device 1 includes the optical scanner 26 that irradiates a predetermined position on one surface of the measurement object MO with light and scans the position, the light detector 13 that detects the light reflected at the predetermined position according to the irradiation of the light and outputs a detection signal, and the optical scanner control unit 50 that controls the optical scanner 26. The optical scanner control unit 50 includes a high-speed response circuit 501 that responds with a first time constant, a low-speed response circuit 502 that responds with a second time constant larger than the first time constant, and a changeover switch 503 that selects one of the high-speed response circuit 501 and the low-speed response circuit 502.SELECTED DRAWING: Figure 3

The invention relates to a method for reading identification information inscribed into a wafer (14) in the form of an identification marking (16), in which method at least one measuring beam (24; ML) of an optical measuring device (20; 110), which comprises either an optical coherence tomograph (22) or a chromatic confocal distance sensor (110), scans a region (18) of the wafer (14) into which the identification marking (16) is inscribed. The identification marking (16) is recognised from measurement data generated during scanning of the wafer (14). Identification information associated with the recognised identification marking (16) is determined on the basis of said recognised identification marking.

Method for calibrating a device (14) for measuring the thickness (d) of an opaque object (10), wherein the device comprises a first OCT sensor (20) having a first optical coherence tomograph (22), a first scanning device (26) and a first collecting optic (38), and a second OCT sensor (20') having a second optical coherence tomograph (22'), a second scanning device (26') and a second collecting optic (38'), wherein the first OCT sensor (20) is arranged along a z-direction relative to the second OCT sensor (20') such that the first collecting optic (38) is arranged coaxially to the second collecting optic (38'), and wherein the method comprises the following steps: a) the first optical coherence tomograph (22) generates a measuring light beam (24); b) the first scanning device (26) is controlled such that the measuring light beam (24) is focused into a first location (70), where there is no opaque object at the location (70); c) the second scanning device (26') is controlled so that it scans an area around the first location (70) so that the measuring light beam (24) generated in step a) is directed at least temporarily by the second scanning device (26') onto a detector (56') of the second OCT sensor (20'); d) taking into account intensity signals measured by the detector (56') in step c), a first coordinate system used by the first OCT sensor (20) is aligned with a second coordinate system used by the second OCT sensor (20'); e) From the comparison in step d), a correction rule is generated, according to which points in the first coordinate system can be uniquely and reversibly assigned to points in the second coordinate system.

A method for loading at least one transport unit (13) with packages (2) is described and shown. In order to avoid damage to the parcels due to shipment of the parcels into the transport unit, it is proposed that the parcels (2) are sequentially scanned with an optical scanner (7); acquiring, by the evaluation unit (11), at least one stability parameter by means of an image taken by the optical scanner (7) for each parcel (2); the evaluation unit (11) assigns a stability score to each parcel (2) on the basis of the at least one stability parameter; and shipping the parcels (2) to different locations in the at least one transport unit (13) according to the respective stability scores.

This invention provides a system and method for performing item detection at the point of sale. [Solution] In one exemplary embodiment, the method is performed by a POS system device having a terminal station device and a bagging station device. The terminal station device includes an optical scanner. The bagging station device includes a bagging area. Furthermore, the POS system device is operably coupled to an optical sensor device having a field of view including an area around the POS system device, and the POS area has a set of POS sub-regions. The method includes the step of applying an artificial intelligence model to a set of interaction object tracking characteristics to enable the determination that one of the set of detected objects has been transported to a POS sub-region associated with the bagging area without being scanned.

A method for loading at least one transport unit with packages is described and illustrated. In order to prevent damage to packages as a result of loading the packages into a transport unit, it is provided that the packages are scanned one after another with an optical scanner, that at least one stability parameter for each package is determined based on the images of the optical scanner by an evaluation unit, that the evaluation unit assigns a stability score to each package based on the at least one stability parameter, and that the packages are loaded into different locations in the at least one transport unit depending on the respective stability scores.

The application provides a SERF atomic magnetometer and a head nuclear magnetic resonance image automatic registration method, comprising the following steps: obtaining three-dimensional information of a subject's head based on an optical scanner, and dividing the scanning point cloud into two parts of a helmet and a face; performing coarse registration on the helmet model and the helmet point cloud based on an FPFH descriptor, performing fine registration by using an ICP algorithm, and determining the position and direction of the sensor on the three-dimensional scanning data; performing coarse registration on the face point cloud and the head nuclear magnetic resonance image based on face symmetry information, performing fine registration by using an ICP algorithm, and converting the sensor position and direction information to the nuclear magnetic resonance image coordinate system. The registration algorithm realized by the application has the characteristics of automation, high precision and high efficiency, greatly simplifies the registration process, is convenient for medical staff to use, and promotes the medical application of brain magnetism.

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.

To provide a distance and velocity measurement apparatus that can be adopted preferably in a LiDAR or a sensor for a robot, wherein the apparatus can prevent deterioration of SN ratio even in a case where an object in an external environment vibrates. A LiDAR 20 according to the present embodiment includes a first laser apparatus 1a, a second laser apparatus 1b, a polarization-maintaining type optical fiber 2, a WDM filter 6, an optical fiber coupler 3a, an optical amplifier 11, an input / output unit 4, an optical scanner 5, a second optical fiber coupler 3b, a balanced photodetector 7, and a square-law detector 9. Further, a delay line 10 composed of a polarization-maintaining optical fiber is provided on the local port 2b. The first laser apparatus 1a includes a device for generating a first laser light having a first wavelength and a first chirp rate in an interior thereof, and the second laser apparatus 1b includes a device for generating a second laser light having a second wavelength that differs from the first wavelength and a second chirp rate that differs from the first chirp rate.

The application discloses an aluminum profile machining precision optimization method and system. The method comprises the following steps: obtaining an aluminum profile cross-section target contour; collecting aluminum profile cross-section actual contour point cloud data and preprocessing; calculating the profile error AP of the component contour; using the long short-term memory network algorithm model LSTM combined with the attention mechanism to predict the error trend and obtain the predicted error; calculating the process parameter compensation amount according to the predicted error; and obtaining the final applied process parameter according to the process parameter compensation amount and the basic process parameter set value. The application adopts an optical scanner to non-contact online scanning to obtain complete contour point cloud data, combines B-spline curve fitting with normal distance accurate calculation of profile error, realizes comprehensive collection of contour data and accurate quantization of error, can control the tolerance in a smaller range, and meets the strict requirements of high-end applications such as chip heat sinks, automobile anti-collision beams and precision guide rails on size precision and shape precision.

An ophthalmic apparatus includes an objective lens, an illumination optical system, an optical scanner, an imaging optical system, and a pupil division member. The illumination optical system includes an illumination diaphragm with one or more illumination openings, and is configured to irradiate slit-shaped illumination light. The optical scanner is configured to deflect the illumination light to guide the deflected illumination light to the eye to be examined. The imaging optical system is configured to guide returning light of the illumination light from the eye to be examined to an image sensor. The pupil division member includes a photographic diaphragm with one or more photographing openings, and is configured to spatially separate optical paths of the illumination optical system and the imaging optical system. The illumination openings and the photographing openings are formed so that a pupil separation amount becomes greater than a predetermined center ghost occurrence suppression threshold.