Abstract: The present invention relates to a light detecting and ranging (LiDAR) device for obtaining information on a distance from an object using laser light.

Abstract: Provided are a beam scanning device and a system including the beam scanning device. The beam scanning device includes: a spatial light modulator configured to modulate a phase of a light for a corresponding pixel of a plurality of pixels; and a phase mask including a support plate arranged in an output direction of the light that is output from the spatial light modulator and a plurality of nanostructures arranged on the support plate differently for each of the plurality of pixels to control the phase of the light.

Abstract: A display assembly monitors movements in a waveguide assembly and corrects for aberrations in image light caused by the monitored movements. For example, an artificial reality headset may include a display assembly that monitors for changes in shape or displacement of waveguide assemblies that generate three dimensional images for display with a real world environment. The display assembly includes movement sensors (e.g., piezoelectric movement sensors) coupled to the waveguide assembly. The movement sensors monitor the movement of the waveguide assembly and provide the monitored movement to a display controller that generates instructions for correcting aberrations in the image light.

Abstract: A component mounting device includes a mounting head that mounts a component at a mounting position on a substrate, and a control unit that determines a mounting state of another component mounted in advance around the mounting position based on height information of a region around the mounting position.

Abstract: An apparatus for use in inspecting a wire segment is provided. The apparatus includes a guide tube sized to receive the wire segment, and an array of mirrors positioned about the guide tube. Each mirror in the array is oriented such that a reflection of the wire segment in the array of mirrors forms a circumferential view of at least a portion of the wire segment, and such that the reflection from each mirror is within a field of view from a single vantage point.

Abstract: A system and method for a bistatic coherent LIDAR system with lasers locked to a reference. Utilizing atomic absorption lines to lock the frequency for the bistatic system provides an absolute reference, as each of the lasers in the bistatic system would have the same frequency to within the linewidth of the frequency reference. Each laser may also be additionally locked to an optical cavity for increased frequency stability. Not only does such a system provide essentially an infinite aperture, it also reduces laser power requirements because the detector platforms could be much closer to the target than the platform that contains the laser.

Abstract: A computer numerically controlled machine may include a source of electromagnetic energy. A beam of electromagnetic energy from the source may be delivered to a destination such as, for example, a material positioned in a working area of the computer numerically controlled machine. The beam of electromagnetic energy may be susceptible to interferences while traveling from the source to the destination. The computer numerically controlled machine may include a beam detector configured detect an interference of the beam by measuring a power of the beam of electromagnetic energy at a location between the source and the destination. An interference of the beam may be detected if the power of the beam is less than a threshold value. A controller at the computer numerically controlled machine may perform one or more actions in response to the beam detector detecting the interference of the beam of electromagnetic energy.

Abstract: An image reading apparatus includes a document feeder, a reading unit configured to read an image of a document fed by the document feeder, a facing member positioned to face the reading unit via a document feeding path, and a detection processing unit configured to perform area detection processing for detecting an area of the document with respect to a read image obtained by the reading unit. The facing member includes a white portion and a gray portion. The reading unit selectively performs normal reading for reading the image of the document with the white portion of the facing member as a background and auto-crop reading for reading the image of the document with the gray portion of the facing member as the background. The detection processing unit performs the area detection processing only in the auto-crop reading.

Abstract: An electrically scanned array antenna device applied to a millimeter wave imaging system is provided. The electrically scanned array antenna device comprises an adjustable light source for outputting an optical signal with an adjustable wavelength; an electro-optical modulation module; an optocouple; a time delay module for performing optical delay of different duration on each modulated signal, and correspondingly changing the duration of the optical delay according to the wavelength of the optical signal to obtain modulated signals of different phases; an optical detector; and an array antenna. The millimeter wave is loaded on the optical signal with an adjustable wavelength to obtain a modulated signal; the modulated signal is divided into multiple signals; time delay of different duration is performed on each signal; and millimeter wave signals of different phases are obtained after demodulation and are simultaneously transmitted to scan an object to be measured.

Abstract: A laser scanner in which scanning data and logging data are only stored in an internal data memory which can be exchanged in a simple manner.

Abstract: A mirror assembly has one or more axes of motion and includes a mirror that is movable and forms an acute angle with a plane orthogonal to its axis of motion. The mirror assembly may include a first reflective mirror surface in the incoming optical path that is movable and forms an acute angle with a plane orthogonal to its axis of motion, and a second reflective mirror surface in the outgoing optical path that is movable and forms an acute angle with a plane orthogonal to its axis of motion and is moveable in a linear translation to scan the mirror in the interferometer in a way to generate a normal interferogram.

Abstract: A scan driving device includes a waveform generator that generates a sawtooth driving waveform having a rise period in which a signal level rises, and a fall period in which the signal level falls, and a driving circuit that drives an optical scanning device, that resonates at a natural resonant frequency thereof, by a sawtooth driving voltage waveform corresponding to the sawtooth driving waveform. A time width of one of the rise period and the fall period is shorter than the other of the rise period and the fall period, and is an integer multiple of an inverse number of the natural resonant frequency.

Abstract: The invention relates to a method for scanning microscopy wherein a specimen is scanned simultaneously with a plurality of illumination spots of an excitation light. The light emitted by one specimen location irradiated with one illumination spot is detected independently of the light emitted by another specimen location illuminated with another illumination spot. A microscopic image of the specimen can be compiled from the emitted light detected for the different specimen locations. The method provides that the intensities of the different illumination spots are set independently of one another, and in that the illumination spots are guided over the specimen one after another in a scan line. The invention additionally relates to a scanning microscope.

Abstract: A system may include a micro-electro-mechanical systems (MEMS) mirror and a MEMS driver circuit. The MEMS driver circuit may obtain a plurality of items of monitoring information associated with the MEMS mirror. The plurality of items of monitoring information may include at least one of sensor information received from one or more sensors associated with the MEMS mirror, or operation information received from a controller associated with the system. The MEMS driver circuit may determine a state of the MEMS mirror based on the plurality of items of monitoring information. The MEMS driver circuit may adapt a mirror control parameter, associated with controlling the MEMS mirror, based on the state of the MEMS mirror.

Abstract: Techniques are described for imaging a sample where the techniques include acquiring a raster scan image of the sample, providing light from a light source, directing the light into a plurality of different light beam paths at different times, providing light in each of the plurality of light beam paths through an objective lens to the sample, and providing light in each of the plurality of beams to different locations within the sample. Fluorescence emission light from the sample is detected in response to excitation by light in each of the plurality of light beam paths, where the detected fluorescence emission light corresponds to fluorescence intensity projections of the sample with low mutual coherence, and an image of the sample is generated based on the detected fluorescence emission light and based on the raster scan image.

Abstract: A scanning optical system, includes a mirror unit having a first mirror surface and a second mirror surface which incline to a rotation axis; and a light projecting system having a light source. A light flux emitted from the light source is reflected on the first mirror surface of the mirror unit, thereafter, reflected on the second mirror surface, and then, projected so as to scan in a main scanning direction onto an object in accordance with rotation of the mirror unit. The light flux emitted from the second mirror surface becomes a plurality of spot lights on the object side, and the plurality of spot lights are arranged along a direction intersecting with the main scanning direction.

Abstract: Disclosed herein is an electronic device that includes a peak detection circuit configured to receive a mirror sense signal from an oscillating mirror and to generate peak information for a mirror period as a function thereof. The electronic device includes a mirror control circuit that estimates an opening angle of the oscillating mirror as a function of the peak information, generates a control signal for the oscillating mirror as a function of the estimated opening angle, and resets the peak detection circuit at an end of the mirror period.

Abstract: A light module (1) which comprises preferably at least three laser diodes (2a, 2b, 2c) that emit light in a visible wavelength range, a respective collimating device (3a, 3b, 3c) per laser diode, a beam combination device (4) for combining the emitted light of the individual laser diodes (2a, 2b, 2c), a beam-shaping device (5) for shaping the combined beam, and at least one emitter (6) for generating non-visible light, in particular an IR laser diode. The emitter (6) is arranged in such a way that the emitted non-visible light is not guided through at least one of the beam combination device (4) or the beam-shaping device (5).

Abstract: An image reading apparatus according to an embodiment includes an image reading unit that generates reference data by reading a reference surface and generates image data by reading a sheet. A reference plate includes the reference surface for generating the reference data for shading correction of the image reading unit and a background surface for background of a sheet to be read to generate the image data. A control unit controls the positions of the image reading unit and the reference plate to be at a first position relative to each other when the reference data is to be generated and at a second position relative to each other when the image data is to be generated. The second position is different from the first position. A shading correction unit performs the shading correction in the image reading unit based on the generated reference data.

Abstract: A method comprises operating a remote sensing vehicle comprising a host bus platform and a variable pitch instrument platform movably coupled to the host bus platform in at least one degree of freedom. The method comprises establishing a pointing position and scanning a target surface with the variable pitch instrument platform. The variable pitch instrument platform is dynamically movable relative to the host bus platform to vary the pointing position of the variable pitch instrument platform, thereby decoupling payload pointing from the host bus platform. Thus, payload data collection is independent of attitude control of the host bus platform. A method is provided of varying ground-sample-distance (GSD) value with a remote sensing vehicle. A remote sensing vehicle comprises a host bus platform and a variable pitch instrument platform for scanning or data collection of a target surface, and an dynamic coupling device (e.g.

Abstract: A clock signal generator includes an optic mirror rotatable to scan an incident light beam in a first direction, a grid plate including a plurality of grid arrays arranged in a second direction different from the first direction, wherein light reflected from the optic mirror is selectively passed through when the light beam is scanned on the grid plate in the first direction, the grid array being offset in the first direction by a particular distance with respect to an adjacent grid array, a light detector configured to detect a light passing through the grid arrays, and a pixel clock generator configured to generate a clock signal based on detection signals received from the light detector.

Abstract: The invention relates to a sensor for the recognition of images on surfaces of objects in relative motion with regard to the sensor, especially for reading optical codes and/or characters and/or symbols on a surface of an object, comprising a plurality of sensor lines, each adapted to render line images in a temporal sequence, wherein the sensor is arranged to combine a plurality of line images of said sensor lines to yield a line image of the sensor, wherein each of said plurality of line images was captured by a different one of said sensor lines and at least some of said plurality of line images were captured at different points in time. The invention also relates to a corresponding method for the recognition of an image on a surface of an object and to a system for the acquisition of images on a surface of a moving target, comprising a conveyor for carrying target objects and a sensor as described above.

Abstract: Provided is a microscope provided with: a scanner that scans an excitation beam coming from a light source; an objective optical system that focuses the scanned excitation beam onto a sample and that collects fluorescence generated at individual scanning positions in the sample; a detector that detects the collected fluorescence; a light blocking member that is disposed between the detector and the system and that partially blocks the collected fluorescence; a switching portion that switches the positional relationship between the member and a light-focusing point of the excitation beam in the sample between an optically conjugate positional relationship, in which an in-focus fluorescence generated at the light-focusing point passes through the member, and a non-conjugate positional relationship, in which the in-focus fluorescence is blocked by the member; and a computing portion that computes a difference between fluorescence signals acquired by the detector in the two positional relationships.

Abstract: A scanning microscopy system includes a photodetector and a scanning optical system that irradiates light onto a plurality of spots on an observed object to scan the observed object such that a positional relationship between an image of the observed object and the photodetector is maintained. The scanning optical system includes a confocal plate in which a plurality of apertures are placed in order in an intermediate image plane situated between the observed object and the photodetector and that includes a lens array having a plurality of lens elements that cover the plurality of apertures. The lens array individually demagnifies intermediate images of the plurality of spots that are formed or that have been formed in the plurality of apertures such that each of the plurality of spots is projected onto the photodetector at a magnification lower than a magnification at which the observed object is projected onto the photodetector.

Abstract: An ultra-wide band microwave based personnel/passenger screening system, and in particular, a system for material specific detection, uses non-ionizing radiation in which focused beams of low intensity microwave radiation are projected in rapid succession at an individual as they walk through a portal.

Abstract: An image display apparatus includes an image light generator that generates video light modulated based on a video signal, a light diffracting section (first diffractive optical element) that diffracts the video light outputted from the image light generator, a light sweeper (optical scanner) that spatially scans the video light, and a reflector including a light diffracting section (second diffractive optical element) that diffracts the video light scanned by the light sweeper, and the light diffracting section (first diffractive optical element) is provided on an optical path between the image light generator and the light sweeper. The light diffracting section (first diffractive optical element) preferably has a fixed interval between interference fringes, and the light diffracting section (second diffractive optical element) preferably has portions where intervals between interference fringes differ from each other.

Abstract: An image display device includes a lens array, and a scanner to two-dimensionally scan the lens array with a light beam for image display, in which each of lenses of the lens array includes a convex surface with different curvatures in two directions orthogonal to the optical axis of the lens and to each other.

Abstract: A cable identification system is provided. The cable identification system includes a cable sleeve with some predetermined unique properties. The cable sleeve is adapted to receive a cable therein. The cable includes one or more electrical conductors therein. The cable identification system further includes a portable measuring device configured to detect the predetermined unique properties of the cable sleeve when positioned adjacent the cable at any point along the cable.

Abstract: A computer program product including machine executable instructions stored on machine readable media for implementing a method for controlling color reproduction during manufacture of fabric for a garment is provided. The method includes: obtaining appearance information descriptive of the appearance desired for the fabric; obtaining color profile information for a device that generated the appearance information; updating the appearance information with the color profile information; selecting parts information descriptive of the geometry of at least one part of the garment and applying the updated appearance information to provide updated parts information; and storing the updated parts information for reference during the manufacture. A system and a method are described.

Abstract: A customizable chamber spectral response is described which can be used at least to tailor chamber performance for wafer heating, wafer cooling, temperature measurement, and stray light. In one aspect, a system is described for processing a treatment object having a given emission spectrum at a treatment object temperature which causes the treatment object to produce a treatment object radiated energy. The chamber responds in a first way to the heating arrangement radiated energy and in a second way to the treatment object radiated energy that is incident thereon. The chamber may respond in the first way by reflecting the majority of the heat source radiated energy and in the second way by absorbing the majority of the treatment object radiated energy. Different portions of the chamber may be treated with selectively reflectivity based on design considerations to achieve objectives with respect to a particular chamber performance parameter.

Abstract: There is provided a method for determining a need for a change in a pixel density requirement due to changing light conditions. The pixel density requirement specifies a pixel density which enables identification of an object in images captured by a camera. The method comprises receiving and monitoring (S02) a camera setting which is indicative of a light condition to which the camera is subjected and which affects the quality of images captured by the camera, and determining (S06) that there is a need for a change in the pixel density requirement upon detection (S04) of a change in the camera setting. The camera setting includes at least one of a gain and an exposure time used by the camera when capturing images.

Abstract: An electronic device includes a photodetector, a notification light emitter, and a determination component. The photodetector detects reflected light of light from a projection device within a detection region, the projection device projecting the light in a projection region on a projection surface. The notification light emitter emits on the projection surface two notification lines of visible wavelength that approach each other towards the photodetector. The determination component determines that the projection region is at least partially located outside the detection region based on a detection result of the photodetector. The determination component further determines that an edge of the projection region that is located closest to the photodetector is substantially parallel to a line segment that connects ends of the two notification lines.

Abstract: A method is provided for monitoring at least one yarn quality parameter and/or a parameter of a sensor by an electronic cleaner of yarn by means of an optical detector comprising a sensor with one or two rows of individual optical elements. The individual optical elements provide at their outputs an analog signal proportional to the intensity of its irradiation, the value of which is monitored during each measurement cycle. In the first and/or the second row of optical elements of the sensor, for each monitored parameter, individual optical elements of the sensor, are selected constituting an active zone for monitoring a particular parameter. The number of the optical elements in one active zone in one row is lower than the overall number of the optical elements in the corresponding row, and the output analog signal of the individual optical elements of the corresponding active zone is included in the evaluation of the particular parameter.

Abstract: A method for capturing hyperspectral images using a regular color camera. In the method, the camera takes multiple images of a scene, with the camera oriented differently for each image. For a camera carried by an aircraft or spacecraft, this allows hyperspectral imaging without the cost or weight of a hyperspectral camera.

Abstract: A lithographic apparatus comprising a support structure constructed to support a patterning device, the patterning device being capable of imparting an EUV radiation beam with a grating in its cross-section to form a patterned EUV radiation beam, and a projection system configured to project the patterned EUV radiation beam onto a target portion of the substrate, wherein the support structure is provided with a grating comprising a series of first reflective portions which alternates with a series of second reflective portions, the second reflective portions having a reflectivity which is less than the reflectivity of at least part of the first reflective portions and which is greater than zero.

Abstract: A method for image correction and image projection apparatus using the same are provided, where the image projection apparatus scans a projection light beam on a projection plane to form an image. The image correction method includes the following steps. A plurality of projection points of the projection light beam on the projection plane are sampled to define a projection coordinate system. An image projection area is defined on the projection coordinate system. The projection light beam is moved to scan on the projection plane and projected to the projection points sequentially. Whether the projection point is located in the image projection area is determined. When the projection point is located in the image projection area, a corrected image information is provided to the projection point.

Abstract: There are disclosed a laser projector configured to project an image to a back side of a screen and to detect a touch input, comprising a light source configured to irradiate at least one of red, green and blue lights, an infrared light emitting device configured to emit an infrared light to the screen, a light synthesis system configured to synthesize image information comprising color information for each pixel with the light irradiated from the light source so as to emit the synthesized light, a scanner configured to project the synthesized light toward the screen for each pixel, a detector configured to detect an infrared light reflected by an object approaching the screen, and a controller configured to control operations of the light source, the infrared light emitting device and the scanner and to recognize touch input based on the information detected by the detector, such that the laser projector that may perform the projection of the image to the screen and the touch recognition simultaneously may b

Abstract: Optical scanning systems and methods of controlling a resonant scanning mirror are disclosed. A rotatable mirror may oscillate about a rotation axis in response to a drive signal. A reference source may provide a reference light beam directed to the rotatable mirror. A reference detector may be disposed to receive the reference light beam reflected from the rotatable mirror twice during each oscillation of the rotatable mirror. A controller may set both an amplitude and a frequency of the drive signal based on an output of the reference detector.

Abstract: Disclosed are an image defect detection device, method and an imaging unit capable of reliably detecting image defect, such as stripe unevenness or scratches, even if a comparatively inexpensive and low resolution imaging unit is used. An image reading unit has a plurality of read pixels arranged in a second direction intersecting a first direction and reads an image recorded on a recording medium by a single-pass recording head, which is relatively moved in the first direction. A birefringent plate shifts and duplexes the image at least in the second direction by performing birefringence of image light of the image. The birefringent plate makes the width of image defect in the second direction on the read pixels greater than the pitch of the read pixels. A detection unit which detects image defect included in the image and extended in the first direction based on the reading result of the image.

Abstract: Devices for providing protection against intrusion in order to protect at least one electronic component. One example of the device includes an enclosure, surrounding the electronic component, which is proof against a specific type of radiation, and at least one piece of equipment selected from a receiver and a transmitter of radiation of that specific type, which is arranged inside the enclosure and substantially tuned to another piece of equipment that is complementary and disposed outside the enclosure. The device also includes a detection module suitable for detecting an intrusion if at least one receiver receives radiation of that specific type.

Abstract: The present invention relates to a method of obtaining multiple images with a spatially varying periodic fringe pattern produced by a digital light projector that is spatially and temporally synchronized to the rolling shutter exposure of a two-dimensional pixel array detector. Two or more images obtained with phase-shifted spatial fringe patterns are combined to form a composite image with the spatial fringes and other unwanted scattered light removed.

Abstract: A device and process for positioning individual particles on a substrate is proposed. The device is equipped with at least one particle source which isolates particles of a defined material, with a focusing unit with an entry window facing the particle source and an exit window facing away from the particle source, with a substrate holder to hold the substrate, wherein the focusing unit guides the particles entering through its entry window into defined positions on the substrate, with at least one deflection unit arranged between the particle source and the focusing unit with an entry window facing the particle source and an exit window on the deflector unit facing away from the particle source, wherein the deflector unit preconditions the particles entering through its entry window before they reach the focusing unit.

Abstract: According to an embodiment, an image forming apparatus includes an optical scanning apparatus. A housing cover of the optical scanning apparatus includes a light blocking member. The light blocking member blocks stray light of a laser beam emitted from the optical scanning apparatus or blocks a laser beam having a possibility to be the stray light among the laser beams emitted from the optical scanning apparatus.

Abstract: A radiographic image reading device includes a reading unit configured to photoelectrically read photostimulated luminescence light produced from a storage phosphor sheet illuminated with excitation light, the storage phosphor sheet, at which a radiographic image is stored, being scanned by a scanning unit using the excitation light; and a control unit configured to control the reading unit so as to cause the reading unit, in a case of reading at a first resolution, to read with excitation light at a first scanning speed and a first intensity and, in a case of reading at a second resolution that is a higher resolution than the first resolution, to read with excitation light at a second scanning speed that is slower than the first scanning speed and a second intensity that is smaller than the first intensity.

Abstract: A beam profiler which can determine whether or not a laser beam can be suitably output at a lower cost. The beam profiler is provided with a partial reflecting mirror, light receiving parts, and laser intensity sensors which are individually attached to the light receiving parts. The light receiving parts include a first light receiving part which receives a first region which includes an optical axis of the laser beam in a laser irradiation region of the laser beam and a second light receiving part which is insulated heat-wise from the first light receiving part and which receives a second region of a laser irradiation region which is different from the first region.

Abstract: An image sensor module includes: a sensor IC having light receivers arranged in a main scanning direction; a lens unit configured to form an image on the sensor IC with light transferred from a read target; a first light source unit having a first output surface extending along the main scanning direction and outputting a first linear light extending along the main scanning direction from the first output surface toward the read target, the first output surface being placed at a position spaced apart from the lens unit in a sub-scanning direction; and a second light source unit having a second output surface extending along the main scanning direction and outputting a second linear light extending along the main scanning direction from the second output surface toward the read target, the second output surface being placed between the lens unit and the first output surface in the sub-scanning direction.

Abstract: A laser scanning indicia reading apparatus (1000) comprises one or more adjustable aperture assemblies (2024) for adjusting the diameter of a laser beam and adjustable lens assemblies (2026) for adjusting the distance of a laser beam waist (W).

Abstract: A metrology apparatus includes first (21) and second (22) radiation sources which generate first (iB1) and second (iB2) illumination beams of different spatial extent and/or angular range. One of the illumination beams is selected, e.g. according to the size of target to be measured. The beam selection can be made by a tillable mirror (254) at a back-projected substrate plane in a Kohler illumination setup.

Abstract: Exemplary embodiments of apparatus, systems and methods can be provided for providing at least one electro-magnetic radiation to at least one sample. For example, a plurality of wave-guiding arrangements can be provided which are configured to (i) provide the electro-magnetic radiation(s), and (ii) at a point of emission of each of the wave guiding arrangements, cause a phase of each of the electro-magnetic radiation(s) to have a predetermined value. The exemplary apparatus can be part of a probe. Further the exemplary apparatus can include an interferometric arrangement provided in communication with the probe and/or be part of the probe.

Abstract: An rotation angle of a crank arm is calculated on the basis of a period of time in which a recording material is detected or a period of time in which the recording material is not detected and an end position of the recording material is calculated from the calculated rotation angle, so that detection of the end position of the recording material can be started regardless of a stop position of a sensor and the end position of the recording material can be accurately detected without using a dedicated drive source or member to reciprocate the sensor.