Triangulation Ranging To A Point With One Projected Beam Patents (Class 356/3.01)
  • Patent number: 11454534
    Abstract: A method of optical and microwave synergistic retrieval of aboveground biomass, the method including: 1) obtaining an observation value of aboveground biomass (AGB) of a sample plot; 2) pre-processing laser radar (LiDAR) data, optical remote sensing data and microwave remote sensing data covering a research region, to yield crown height model (CHM) data, surface reflectance data and a backscattering coefficient, respectively; 3) extracting different LiDAR variables, extracting a plurality of optical characteristic vegetation indexes, and extracting a plurality of microwave characteristic variables; 4) establishing a multiple stepwise linear regression model of the biomass; 5) taking the biomass value of the LiDAR data coverage region as a training set and a verification sample set, and selecting samples for modeling and verification; 6) screening out the optical and microwave characteristic variables; and 7) constructing an optical model, a microwave model, and an optical and microwave synergistic model of AG
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: September 27, 2022
    Assignee: WUHAN UNIVERSITY
    Inventors: Zhenfeng Shao, Linjing Zhang
  • Patent number: 11448758
    Abstract: The invention relates to a method for optical distance measurement which includes the steps of emitting measurement pulses by a transmission unit and receiving measurement pulses reflected by an object by a receiver unit to identify objects within a field of view of the receiver unit. A background signal is received by receiver elements and the intensity of the background signal is determined for each receiver element, wherein the determined intensities of the background signal are compared in order to identify objects not identified by the measurement within the field of view of the receiver unit. At least one region of minimal intensity of the background signal is established within an intensity image of the field of view of the receiver unit. The region of minimal intensity is assigned a masking in the field of view, the masking originating from an object not identified by the measurement.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: September 20, 2022
    Assignee: Ibeo Automotive Systems GmbH
    Inventor: Özgür Püskül
  • Patent number: 11428784
    Abstract: A measuring appliance for performing distance measurements to an object, with an optical transmitter channel, an optical reception channel, a reference light path and an evaluation device, wherein the optical transmitter channel comprises a transmitter unit and an optical outlet element and the optical reception channel comprises an optical inlet element and a reception unit. The measuring appliance facilitates distance measurements over a measurement light path to the object and back again and over a reference light path. An attenuation device renders a desired signal attenuation attainable in the reference light path. The reference light path is laid out in such a way that it receives laser measurement radiation prior to the passage through the optical outlet element, guides said laser radiation without contact with the surroundings to the attenuation device and forwards an attenuated portion to the reception unit through the optical inlet element.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: August 30, 2022
    Assignee: HEXAGON TECHNOLOGY CENTER GMBH
    Inventors: Jürg Hinderling, Simon Bestler, Reto Stutz, Rainer Wohlgenannt
  • Patent number: 11422264
    Abstract: There is provided an optical remote sensing system including: an emission channel mount having mounted thereto input ends of an array of emission fiber channels; a beam steering device configured to scan a light beam from a light source across the input ends of the array of emission fiber channels; a plurality of sensor portions, each sensor portion configured to be exposed to a corresponding scene and having connected thereto: an output end of a corresponding emission fiber channel of the array of emission fiber channels; and an input end of a corresponding first collection fiber channel of an array of first collection fiber channels; a first photodetector arranged to detect the backscattered light beams that propagated through the array of first collection fiber channels for sensing a property with respect to the corresponding scenes associated with the plurality of sensor portions; and a fiber channel hub configured for the array of emission fiber channels and the array of first collection fiber channels t
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: August 23, 2022
    Assignee: Nanyang Technological University
    Inventors: Ehsan Mihankhah, Danwei Wang
  • Patent number: 11383807
    Abstract: An observation unit (30) for underwater deployment on/in a submerged earth layer (12) or structure. The unit comprises a housing (32), a light source (36), an underwater imaging device (40), a processor device (44), and a communication device (35). The housing supports the underwater observation unit relative to the submerged layer or structure. The light source is fixed to the housing, and configured to emit light into the unit's surroundings. The imaging device is attached to the housing, and configured to acquire image data of a second light source located within a FOV of the camera that covers the surroundings of the unit. The processor device is configured to determine positional data of the second light source relative to the imaging device, from the image data. The communication device is configured to transmit the positional data to another underwater observation unit, an underwater vehicle, or an underwater processing station.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: July 12, 2022
    Inventors: Arnoud Marc Jongsma, Dennis Van Weeren, Aris Lubbes
  • Patent number: 11375886
    Abstract: Optical fiber waveguide for communicating electromagnetic radiation pulsed by an emitter in an endoscopic imaging system. A system includes an emitter for emitting pulses of electromagnetic radiation and an endoscope comprising an image sensor for sensing reflected electromagnetic radiation. The system includes a waveguide communicating the pulses of electromagnetic radiation from the emitter to the endoscope. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises a laser mapping pattern.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: July 5, 2022
    Inventors: Joshua D. Talbert, Donald M. Wichern
  • Patent number: 11223808
    Abstract: A device, system and method for generating a mapping of projector pixels to camera pixels and/or object positions using alternating patterns is provided. A device controls a projector to project, while a camera acquires frames thereof, in a sequence: alternating patterns; and structured light patterns, the alternating patterns comprising first and second predetermined patterns projected before and/or after the structured light patterns. The device determines, using the frames as coordinated with the alternating patterns, one or more functions relating respective indices of the alternating patterns and the frames, on one or more of a camera pixel-by-pixel basis and a camera scan-line-by-scan-line basis. The device generates, and stores at a memory, a mapping of projector pixels to one or more of camera pixels and positions on an object in the overlapping fields-of-view, based on relating the frames with the structured light patterns using the one or more functions.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 11, 2022
    Assignee: CHRISTIE DIGITAL SYSTEMS USA, INC.
    Inventors: Chad Faragher, Randy Spruyt
  • Patent number: 11187803
    Abstract: A system and a method are disclosed including a dual laser measurement device (DLMD) coupled with a mobile computing device to measure dimensions of a building or other structure, calculate other quantities based on the measured dimensions, select building construction or finishing material, order the material, and save the list of the measured dimensions and ordered materials in a data storage device. All steps of this process from measurement to ordering material may be performed using a DLMD app running on the mobile computing device.
    Type: Grant
    Filed: January 23, 2021
    Date of Patent: November 30, 2021
    Inventor: Michael H. Panosian
  • Patent number: 11125876
    Abstract: A LiDAR system and a method for ascertaining a system state of a LiDAR system, includes an optical source, a mirror, a partially transparent element, a detector array and an evaluation unit. The optical elements of the LiDAR system are arranged so that a component of the light beam is reflected by the partially transparent element onto the detector array. The evaluation unit is configured to receive a detector signal from the detector array, which describes a dimension, shape and/or position of the second component of the light beam projected on the detector array, and to ascertain from the detector signal a system state of the LiDAR system.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: September 21, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Siegwart Bogatscher, Reiner Schnitzer
  • Patent number: 11080995
    Abstract: A number of roadway sensing systems are described herein. An example of such is an apparatus to detect and/or track objects at a roadway with a plurality of sensors. The plurality of sensors can include a first sensor that is a radar sensor having a first field of view that is positionable at the roadway and a second sensor that is a machine vision sensor having a second field of view that is positionable at the roadway, where the first and second fields of view at least partially overlap in a common field of view over a portion of the roadway. The example system includes a controller configured to combine sensor data streams for at least a portion of the common field of view from the first and second sensors to detect and/or track the objects.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 3, 2021
    Assignee: Image Sensing Systems, Inc.
    Inventors: Chad Stelzig, Kiran Govindarajan, Cory Swingen, Roland Miezianko, Nico Bekooy
  • Patent number: 10983196
    Abstract: A laser scanner comprising a distance measuring light projecting unit for emitting at least two distance measuring lights at a known deflection angle with respect to a projecting optical axis, a distance measuring unit for receiving at least two reflected distance measuring lights and performing a distance measurement, respectively, an optical axis deflector for deflecting optical axes of the distance measuring lights and the reflected distance measuring lights at the same deflection angle in the same direction, a projecting direction detecting module for deflecting a deflection angle and a deflecting direction by the optical axis deflector, and an arithmetic control module, wherein the arithmetic control module performs a two-dimensional scanning with the distance measuring lights, draws at least two loci on a plane to be measured, and measures the plane to be measured along at least the two loci substantially at the same time by the distance measuring unit.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: April 20, 2021
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Patent number: 10948481
    Abstract: The invention relates to a device (1) and a method for determining the action of active ingredients on nematodes and other organisms in aqueous tests.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: March 16, 2021
    Assignee: BAYER AKTIENGESELLSCHAFT
    Inventors: Franco Fois, Michael Harnau, Klaus Ochmann
  • Patent number: 10909702
    Abstract: An imaging part 120 receives the light that is reflected from the measurement target, and a plurality of pieces of pattern image data are generated. Height data is generated on the basis of the plurality of pieces of the pattern image data. Green light, blue light, and red light are successively emitted from the light sources 111 to 113, and are reflected from the pattern generating part 118, and uniform light of the green light, uniform light of the blue light, and uniform light of the red light are successively projected onto the measurement target. The imaging part 120 receives the uniform light reflected by the measurement target, and a plurality of pieces of texture image data are successively generated. The plurality of pieces of the texture image data are synthesized, whereby color texture image data is generated.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: February 2, 2021
    Assignee: KEYENCE CORPORATION
    Inventor: Shuhei Ono
  • Patent number: 10895727
    Abstract: A microscope has a fiducial mask and fiducial lens generating a collimated mask image onto a beam splitter which directs the optical image to an objective lens where it is directed to an optical discontinuity formed by the change of index of refraction of the inner surface of a fluidic channel. Reflected optical energy is directed through the objective lens, the beam splitter, and a detector lens to a detector. A focused image forms when an inner surface of the fluidic channel is a focal distance from the objective lens, providing for imaging of fluorescent labels at the inner surface of the fluidic channel.
    Type: Grant
    Filed: October 19, 2019
    Date of Patent: January 19, 2021
    Inventors: James Che, Diping Che
  • Patent number: 10885363
    Abstract: The technology described in this document can be embodied in a method that includes a method for preventing access to a secure system based on determining a captured image to be of an alternative representation of a live person. The method includes illuminating a subject with structured light using a light source array comprising multiple light sources disposed in a predetermined pattern, capturing an image of the subject as illuminated by the structured light, and determining that the image includes features representative of the predetermined pattern. The method also includes, responsive to determining that the image includes features representative of the predetermined pattern, identifying the subject in the image to be an alternative representation of a live person. The method further includes responsive to identifying the subject in the image to be an alternative representation of a live person, preventing access to the secure system.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: January 5, 2021
    Assignee: ADVANCED NEW TECHNOLOGIES CO., LTD.
    Inventors: Yash Joshi, Srikanth Parupati
  • Patent number: 10884310
    Abstract: Portable apparatus for identifying and mitigating defects in electronic devices disposed on substrates or windows are disclosed herein. Such defects can be visually perceived by the end user. The substrates or windows may include flat panel displays, photovoltaic windows, electrochromic devices, and the like, particularly electrochromic windows.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: January 5, 2021
    Assignee: View, Inc.
    Inventors: Robert T. Rozbicki, Bruce Baxter, Trevor Frank
  • Patent number: 10852128
    Abstract: A shape measuring apparatus includes a first light source, a second light source, an optical system, an image capturer, and a controller. The first light source emits visible light. The second light source emits measurement light used in a measurement. The optical system emits the visible light and the measurement light at the same position on a work piece. The image capturer captures an image of the measurement light reflected by the work piece. The controller is configured to cause the emission of the visible light onto the work piece with the first light source when determining a measurement position, and to control the emission of the measurement light onto the work piece with the second light source when making the measurement.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: December 1, 2020
    Assignee: MITUTOYO CORPORATION
    Inventors: Masaoki Yamagata, Kentaro Nemoto, Eisuke Moriuchi, Tadashi Iwamoto
  • Patent number: 10823559
    Abstract: A measuring device for triangulation measurement comprises a light transmitter for emitting illuminating light; a transmitting optical system, which directs the illuminating light in a plurality of light strips to an object; a light receiver for generating a measurement image of the object by measuring of light thrown back from illuminated object areas; and an evaluation unit for determining form or position information of the object based on the measurement image. According to the invention, for the assignment of which area in the measurement image belongs to which light strip, the transmitting optical system is designed so that it directs the illuminating light in differently formed light strips to the object. In addition a corresponding method for triangulation measurement is described.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: November 3, 2020
    Assignee: Pepperl+Fuchs SE
    Inventors: Christoph Blankenburg, Hendrik Steinmann
  • Patent number: 10797460
    Abstract: Systems and methods are described that relate to a scanning laser system configured to emit laser light and an interlock circuit communicatively coupled to the scanning laser system. The interlock circuit may carry out certain operations. The operations include, as the scanning laser system emits laser light into one or more regions of an environment around the scanning laser system, determining a respective predicted dosage amount for each region based on the emitted laser light. The operations further include detecting an interlock condition. The interlock condition includes a predicted dosage amount for at least one region being greater than a threshold dose. In response to detecting the interlock condition, the operations include controlling the scanning laser system to reduce a subsequent dosage amount in the at least one region.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: October 6, 2020
    Assignee: Waymo LLC
    Inventor: Mark Shand
  • Patent number: 10739439
    Abstract: A laser positioning system includes a laser scanner, a first positioning tag, a second positioning tag, and a processing unit. The laser scanner is disposed on a mobile carrier and is for emitting a light beam to a positioning board and receiving a plurality of reflected light spot signals generated by the light beam reflected from the positioning board. The first positioning tag and the second positioning tag are for reflecting the light beam to generate a first positioning signal and a second positioning signal to the laser scanner. The processing unit is for finding information of positions of the light beam projected on the first positioning tag and the second positioning tag, and filtering the reflected light spot signals to define a reference coordinate for the processing to calculate relative positions of the laser scanner and the positioning board according to the reference coordinate.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: August 11, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chun-Te Wu, Chieh-Chih Wang, Chung-Hsun Wang
  • Patent number: 10740870
    Abstract: A method and apparatus are provided for creating a floor plan from a spherical image. A spherical format is created of an image obtained by a camera, wherein the spherical format has a centre that corresponds to the position from which the image was obtained by the camera, and wherein a first surface represented in the image had a first orientation and was at a first distance from the camera when the image was obtained. A plurality of selected points are obtained in the spherical format, each defined by spherical coordinates consisting of a yaw angle and a pitch angle defining a line from the centre. A plane is identified that has the first orientation and that is at the first distance from the centre of the sphere. For each of the selected points, a location in a Cartesian coordinate system is identified where the line from the centre of the sphere to the selected point intersects with the first plane, two of the axes of the Cartesian coordinate system being parallel to the first plane.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: August 11, 2020
    Assignee: EYESPY360 LIMITED
    Inventor: Peter Vassilev Sedeffow
  • Patent number: 10732279
    Abstract: A method for identifying an obstacle (O) in the laser beam (F) of a lidar system includes: commanding the transmission of a laser beam (F); and receiving a lidar signal (S) corresponding to the reflection of the beam (F) on a diffuser present in the beam (F). The detection method further includes: evaluating a set of first parameters of the lidar signal, the set of first parameters including at least an amplitude and a duration, a first detection moment being defined for the lidar signal (S), the duration being defined at each moment as the time elapsed since the first detection moment; identifying an obstacle (O) present in the beam (F) when the amplitude is greater than a first threshold and the duration is greater than a second threshold; and decreasing the power of the beam (F).
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: August 4, 2020
    Assignee: THALES
    Inventors: Jean-Pierre Schlotterbeck, Philippe Rondeau
  • Patent number: 10725179
    Abstract: Some embodiments of the invention include a coordinate measuring machine for detecting the position and alignment of a spatially movable measuring aid. The coordinate measuring machine may include a retroreflector; a base; a support, which is fixed on the base rotatably about a first rotation axis; a beam directing unit, which is fixed to the support rotatably about a second rotation axis substantially orthogonal to the first rotation axis; means for detecting a rotation angle of the support relative to the base; and means for detecting a rotation angle of the beam directing unit relative to the support. In some embodiments, the beam directing unit comprises a laser emission and reception optical unit and a first optical distance measuring unit having at least one first distance measuring device for measuring the distance to a retroreflector of the measuring aid by means of a first measurement radiation.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: July 28, 2020
    Assignee: LEICA GEOSYSTEMS AG
    Inventors: Burkhard Böckem, Thomas Lüthi, Simon Fuchs
  • Patent number: 10656274
    Abstract: Embodiments use holographic projection in augmented reality to visualize a building in 3D and show, as a holographic figure, the position of personnel in the building. In some embodiments, a user can “tap” on a holographic figure to view data on that person, such as skin temperature, room temperature, heart rate, etc.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: May 19, 2020
    Assignee: Intergraph Corporation
    Inventors: Andrew James England, Laura Beth Ezzell, Thomas Overfield, Renz Angelo Santos, Edward Michael Sieja, Charles Carlton Barnes
  • Patent number: 10620303
    Abstract: A distance measurement device controls an emission direction of a laser beam in a light projection device and a reception direction of a laser beam in a light reception device, obtains a reception intensity of the laser beam received by the light reception device, determines whether or not the laser beam received by the light reception device is a laser beam reflected by a target of distance measurement on the basis of a reception direction of the laser beam, a period of time between when the light projection device emits the laser beam and when the light reception device receives the laser beam, a reception intensity of the laser beam, and determination information, and calculates a distance to the target in a case when the laser beam received by the light reception device is the laser beam reflected by the target.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: April 14, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Takeshi Morikawa, Koichi Tezuka, Jun Kawai, Koichi Iida
  • Patent number: 10571569
    Abstract: A method of imaging a scene includes generating a temporally varying optical intensity pattern from at least one continuous wave (CW) light beam. The method also includes illuminating at least one portion of the scene with the temporally varying optical intensity pattern so as to cause a photon to scatter or reflect off the at least one portion of the scene. The photon reflected or scatted from the at least one portion of the scene is detected using a single-photon detector. Based on the temporally varying optical intensity pattern and a time of flight of the photon detected, a distance between the single-photon detector and the at least one portion of the scene is estimated.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: February 25, 2020
    Assignee: Massachusetts Institute of Technology
    Inventors: Juan C. Montoya, Antonio Sanchez-Rubio, Harold C. Payson, Robert E. Hatch, Richard Heinrichs, Dale G. Fried
  • Patent number: 10556305
    Abstract: Provided are methods and systems for aligning multiple parts using simultaneous scanning of features of different parts and using feature-based coordinate systems for determining relative positions of these. Specifically, a feature-based coordinate system may be constructed using one or more critical dimensions between features of different parts. The scanner may be specifically positioned to capture each of these critical dimensions precisely. The feature-based coordinate system is used to compare the critical dimensions to specified ranges. The position of at least one part may be adjusted based on results of this comparison using, for example, a robotic manipulator. The process may be repeated until all critical dimensions are within their specified ranges. In some embodiments, multiple sets of features from different parts are used such that each set uses its own feature-based coordinate system. The part adjustment may be performed based on the collective output from these multiple sets.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: February 11, 2020
    Assignee: The Boeing Company
    Inventors: Byungwoo Lee, Michael Yee-Chih Wang
  • Patent number: 10527725
    Abstract: Embodiments describe a solid state electronic scanning LIDAR system that includes a scanning focal plane transmitting element and a scanning focal plane receiving element whose operations are synchronized so that the firing sequence of an emitter array in the transmitting element corresponds to a capturing sequence of a photosensor array in the receiving element. During operation, the emitter array can sequentially fire one or more light emitters into a scene and the reflected light can be received by a corresponding set of one or more photosensors through an aperture layer positioned in front of the photosensors. Each light emitter can correspond with an aperture in the aperture layer, and each aperture can correspond to a photosensor in the receiving element such that each light emitter corresponds with a specific photosensor in the receiving element.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: January 7, 2020
    Assignee: Ouster, Inc.
    Inventors: Angus Pacala, Mark Frichtl
  • Patent number: 10515559
    Abstract: In general, certain embodiments of the present disclosure provide a detection and avoidance system for a vehicle. According to various embodiments, the detection and avoidance system comprises an imaging unit configured to obtain a first image of a field of view at a first camera channel. The first camera channel filters radiation at a wavelength, where one or more objects in the field of view do not emit radiation at the wavelength. The detection and avoidance system further comprises a processing unit configured to receive the first image from the imaging unit and to detect one or more objects therein, as well as a notifying unit configured to communicate collision hazard information determined based upon the detected one or more objects to a pilot control system of the vehicle. Accordingly, the pilot control maneuvers the vehicle to avoid the detected objects.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: December 24, 2019
    Assignee: The Boeing Company
    Inventors: Aaron Y. Mosher, Charles B. Spinelli, Morgan E. Cook
  • Patent number: 10514375
    Abstract: The invention relates to a device (1) and a method for determining the action of active ingredients on nematodes and other organisms in aqueous tests.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: December 24, 2019
    Assignee: Bayer Aktiengesellschaft
    Inventors: Franco Fois, Michael Harnau, Klaus Ochmann
  • Patent number: 10508910
    Abstract: An optical module includes a carrier, a light source disposed on an upper side of the carrier, an optical sensor disposed on the upper side of the carrier, and a housing disposed on the upper side of the carrier over the light source and the optical sensor. The housing defines a first aperture exposing at least a portion of the light source and a second aperture exposing at least a portion of the optical sensor. An outer sidewall of the housing includes at least one singulation portion adjacent to the upper side of the carrier and perpendicular to the upper side of the carrier.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: December 17, 2019
    Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventors: Ying-Chung Chen, Hsun-Wei Chan, Lu-Ming Lai, Kuang-Hsiung Chen
  • Patent number: 10495734
    Abstract: Provided is a position locating instrument for a position locating method in which position locating instruments that transmit and receive light beams are arranged in series connection. The position locating instruments reduce error factors and improve measurement accuracy by providing all or some of necessary position and attitude parameters. The position locating instrument has at least one light emission port through which light from a wavelength-changeable light source is emitted; and at least one light receiving port that receives light emitted or reflected by an adjacent position locating instrument. The light emitted from the light emission port has a fanlike pattern and has an emission angle varying, as a monotonic function of a wavelength of the light, in a direction perpendicular to a direction in which the light spreads in the fanlike pattern.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: December 3, 2019
    Assignee: NTT ADVANCED TECHNOLOGY CORPORATION
    Inventors: Shogo Yagi, Fumio Saito, Kazunori Naganuma, Eiichi Sugai, Tohru Kodaira, Akira Sawaguchi, Hideki Hagino, Takeshi Watanabe, Noriyuki Ishidu, Hiizu Takemura
  • Patent number: 10444359
    Abstract: Embodiments describe a solid state electronic scanning LIDAR system that includes a scanning focal plane transmitting element and a scanning focal plane receiving element whose operations are synchronized so that the firing sequence of an emitter array in the transmitting element corresponds to a capturing sequence of a photosensor array in the receiving element. During operation, the emitter array can sequentially fire one or more light emitters into a scene and the reflected light can be received by a corresponding set of one or more photosensors through an aperture layer positioned in front of the photosensors. Each light emitter can correspond with an aperture in the aperture layer, and each aperture can correspond to a photosensor in the receiving element such that each light emitter corresponds with a specific photosensor in the receiving element.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: October 15, 2019
    Assignee: Ouster, Inc.
    Inventors: Angus Pacala, Mark Frichtl
  • Patent number: 10429495
    Abstract: A Lidar system is provided. The Lidar system comprises: a set of light sources configured to emit a plurality of light beams; a set of optical fiber elements, wherein each of the set of light sources is optically coupled to a first end of one or more optical fiber elements from the set of optical fiber elements; and at least one mounting unit comprising a structure configured to receive a second end of the set of optical fiber elements at one or more directions thereby affecting a direction of the plurality of light beams individually.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: October 1, 2019
    Assignee: HESAI PHOTONICS TECHNOLOGY CO., LTD.
    Inventors: Rui Wang, Xuezhou Zhu, Na Li, Jiasheng Li, Hongguang Wang, Shaoqing Xiang, Yifan Li
  • Patent number: 10401496
    Abstract: An optoelectronic module operable to collect distance data via a time-of-flight mode and a time-of-flight-triangulation mode includes an illumination assembly and an imaging assembly. The imaging assembly includes at least one demodulation pixel operable to determine distance to an object via a time-of-flight mode and a time-of-flight-triangulation mode. Multi-path distance inaccuracies can be mitigated in some implementations.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: September 3, 2019
    Assignee: ams Sensors Singapore Pte. Ltd.
    Inventor: Bernhard Buettgen
  • Patent number: 10360693
    Abstract: The present disclosure provides a high resolution structured light system that is also capable of maintaining high throughput. The high resolution structured light system includes one or more image capture devices, such as a camera and/or an image sensor, a projector, and a blurring element. The projector is configured to project a binary pattern so that the projector can operate at high throughput. The binary projection pattern is subsequently filtered by the blurring element to remove high frequency components of the binary projection pattern. This filtering smoothes out sharp edges of the binary projection pattern, thereby creating a blurred projection pattern that changes gradually from the low value to the high value. This gradual change can be used by the structured light system to resolve spatial changes in the 3D profile that could not otherwise be resolved using a binary pattern.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: July 23, 2019
    Assignee: Cognex Corporation
    Inventors: Aaron Wallack, John Filhaber, George Costigan
  • Patent number: 10295656
    Abstract: A Lidar system is provided. The Lidar system may comprise: a plurality of light sources configured to emit a plurality of light beams, the plurality of light sources are mounted to a first mounting apparatus comprising a cooling feature; a plurality of optical fiber elements, and each of the plurality of light sources is optically coupled to an input end of one or more optical fiber elements from the plurality of optical fiber elements; and a second mounting apparatus comprising at least one mounting unit coupled to an emitting end of the plurality of optical fiber elements, and the at least one mounting unit is configured to control an output direction of the plurality of light beams individually, and a distribution pattern of the plurality of light beams emitted from the emitting end of the plurality of optical fiber elements.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: May 21, 2019
    Assignee: HESAI PHOTONICS TECHNOLOGY CO., LTD.
    Inventors: Jiasheng Li, Hongguang Wang, Shaoqing Xiang
  • Patent number: 10288734
    Abstract: A sensing method, including: emitting a signal beam; sampling the reflected signal at a sensor with a field of view larger than the signal beam; and determining a surface parameter based on the bright and dark regions associated with the sampled signal.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: May 14, 2019
    Assignee: Robert Bosch Start-Up Platform North America, LLC, Series 1
    Inventors: Audrey Steever, Sarah Osentoski, Kaijen Hsiao, Michael Beebe, Jason John Umhoefer, Karen Marie Ahle, Todd Louis Harris, David L. Klein, Nick C. Leindecker
  • Patent number: 10215857
    Abstract: The invention relates to a depth sensor module and depth sensing method. The depth sensor module and method is adapted to include a light detector part and emitting part with a least two light sources spatially offset in the direction of the triangulation baseline. In some of the embodiments, the pixel field of the image sensor in the light detector part consists of time-of-flight pixels. Depth measurements derived by triangulation can be used to calibrate depth maps generated by the time-of-flight measurements.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: February 26, 2019
    Assignee: ams Sensors Singapore Pte. Ltd.
    Inventors: Thierry Oggier, Mathias Deschler, Stéphane Kaloustian
  • Patent number: 10197668
    Abstract: Laser radar systems include focusing optical systems having a retroreflector such as a corner cube that is translatable with respect to an objective lens. The retroreflector provides a selected retardance to an interrogation optical beam that is directed to a target as well as to a returned portion of the interrogation optical beam that is directed to a detection system. Typically, an input linearly polarized interrogation beam is returned by the retroreflector as a circularly polarized beam that is directed to the target. Returned beam portions from the target are coupled by the retroreflector to a detection system in a linear polarization that is orthogonal to that of the input linearly polarized optical beam. The retroreflector produces state of polarization changes based on retardance associated with total internal reflection from coated or uncoated optical surfaces. Retroreflector surfaces that are not to introduce retardance are coated with suitable zero or low retardance coatings.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: February 5, 2019
    Assignee: Nikon Corporatin
    Inventor: Daniel Gene Smith
  • Patent number: 10194129
    Abstract: A method of taking pictures for generating three-dimensional image data is disclosed. The method includes continuously illuminating a target object with an environmental light; using an image sensor to receive the light reflected from the target object to generate a first electrical image signal; illuminating the target object with an active light generated from an active light source unit during the period of exposure by the environmental light; using the same image sensor to receive another reflected light to generate a second electrical image signal; using an image processing unit to receive the first and second electrical image signals, convert the first electrical image signal to a two-dimensional image data, and subtract the first electrical image signal from the second electrical image signal to generate three-dimensional depth data; and combining the two-dimensional image data and the three-dimensional depth data to generate the three-dimensional image data.
    Type: Grant
    Filed: December 18, 2011
    Date of Patent: January 29, 2019
    Assignee: CHIH-CHING DEPTH X DEEP DIMENSIONS CO.
    Inventors: Wen-Chin Chang, Tien-Hsiang Chen, Chin-Chien Chang
  • Patent number: 10184793
    Abstract: A measuring device for triangulation measurement comprises a light transmitter for emitting illuminating light; a transmitting optical system for directing the illuminating light in a light pattern in the direction of an object; a light receiver for recording an image; a control and evaluation unit, which determines, in a measurement mode, form or position information of the object based on a measurement image of the light receiver. According to the invention the control and evaluation unit can change over between the measurement mode and a data reading mode, wherein the control and evaluation unit, in the data reading mode, evaluates the image with respect to encoded parameter data, and, in a subsequent measurement mode, uses the parameter data read in this way. In addition, a corresponding method for triangulation measurement is described.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: January 22, 2019
    Assignee: Pepperl + Fuchs GmbH
    Inventors: Christoph Blankenburg, Armin Hornberger, Tim Weis
  • Patent number: 10175356
    Abstract: A laser detection and ranging device for detecting an object under a water surface, the laser detection and ranging device having a laser transmitter being configured to modulate a laser beam by a binary pseudo-random coding sequence to obtain a modulated laser beam, and to transmit the modulated laser beam towards the water surface, a laser detector for detecting a reflected laser beam, the reflected laser beam forming a reflected version of the transmitted laser beam, and a processor for detecting the object under the water surface upon the basis of the reflected laser beam.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: January 8, 2019
    Assignees: LADAR LIMITED, HJELMSTAD AS
    Inventor: Jens Hjelmstad
  • Patent number: 10126882
    Abstract: A touch-sensitive apparatus operates by light frustration (FTIR) and comprises a light transmissive panel that defines a front surface and a rear surface, light emitters optically connected to the panel so as to generate light that propagates by total internal reflection inside the panel, and light detectors optically connected to the panel so as to define a grid of propagation paths inside the panel between pairs of light emitters and light detectors. Each of said light emitters is a VCSEL array, each said VCSEL array including a plurality of VCSELs driven in parallel to collectively form one light emitter. Preferably, each light detector is optically connected to the panel via an angular filter, tailored to pass light to the detector in an angular range in which the emitters operate.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: November 13, 2018
    Assignee: FlatFrog Laboratories AB
    Inventor: Ola Wassvik
  • Patent number: 10119815
    Abstract: A binocular with an integrated rangefinder consisting of two tubes with observation channels, the optical systems of which include a Schmidt-Pechan prism reversion system with at least half-pentagonal prism and a Schmidt roof prism is provided. The laser transmitter of the transmitted infrared beam path is arranged in the first tube in parallel with the first observation channel towards the observed object and, furthermore, the display with an illuminated reticle and light beam is accommodated in the first tube, which, after passing through the integration display prism and the second separation layer on the reflective wall of the half-pentagonal prism and through the reversion system, is integrated into the first observation channel of the first tube.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: November 6, 2018
    Assignee: MEOPTA—OPTIKA, S.R.O.
    Inventors: Vojt{hacek over (e)}ch Mrlík, Zden{hacek over (e)}k Lo{hacek over (s)}{hacek over (t)}ák
  • Patent number: 10116920
    Abstract: A method of balancing colors of three-dimensional (3D) points measured by a scanner from a first location and a second location. The scanner measures 3D coordinates and colors of first object points from a first location and second object points from a second location. The scene is divided into local neighborhoods, each containing at least a first object point and a second object point. An adapted second color is determined for each second object point based at least in part on the colors of first object points in the local neighborhood.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: October 30, 2018
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Joachim E. Vollrath, Martin Ossig
  • Patent number: 10094925
    Abstract: A multispectral lidar system includes a laser configured to emit a pulse of light including a first wavelength, scanner configured to direct the emitted pulse of light in accordance with a scan pattern, a receiver including a first detector and a second detector, and a controller. The first detector is configured to detect the emitted pulse of light scattered by a remote target, and the second detector is configured to detect light scattered or emitted by the remote target and including a second wavelength. The scanner provides, at any point in time, a fixed spatial relationship between the fields of view over which the light with the first wavelength and the second wavelength is received. A controller can determine a distance to the remote target and use this distance to modify a measurement of the property of the remote target based on the light detected by the second detector.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: October 9, 2018
    Assignee: LUMINAR TECHNOLOGIES, INC.
    Inventor: Joseph G. LaChapelle
  • Patent number: 10083531
    Abstract: A physical quantity distribution calculation program for visualizing a physical quantity distribution in a target space is disclosed. The program causes the computer to perform processes of: based on positional information on a plurality of grid points and physical quantities obtained respectively at the plurality of grid points by the numerical analysis, grouping the grid points into groups of neighboring grid points having the same physical quantity; and determining the physical quantity to be visualized by each of a plurality of pixels which are fewer than the grid points, the determining process includes; extracting at least one group including at least one of grid points corresponding to the pixel, identifying the group including the largest number of grid points among the extracted groups, and determining that the physical quantity at the grid points belonging to the identified group is the physical quantity to be visualized by the pixel.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: September 25, 2018
    Assignee: FUJITSU LIMITED
    Inventor: Eiji Ohta
  • Patent number: 10067232
    Abstract: A location estimation system for use with an autonomous lawn mowing robot, comprises a plurality of synthetic surfaces positioned with respect to a mowable space in an environment, a radiation source coupled to the lawn mowing robot, a detector coupled to the lawn mowing robot and configured to detect radiation reflected by objects in the environment, and a controller configured to controllably direct radiation from the radiation source to scan the environment, and to vary at least one of an output power of the directed radiation and a scan rate of the directed radiation, as a function of detected radiation reflected from one or more of the synthetic surfaces.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: September 4, 2018
    Assignee: iRobot Corporation
    Inventors: Mike Halloran, Jamie Milliken, Travis Pierce, Eric Charles Peters
  • Patent number: 10055979
    Abstract: A number of roadway sensing systems are described herein. An example of such is an apparatus to detect and/or track objects at a roadway with a plurality of sensors. The plurality of sensors can include a first sensor that is a radar sensor having a first field of view that is positionable at the roadway and a second sensor that is a machine vision sensor having a second field of view that is positionable at the roadway, where the first and second fields of view at least partially overlap in a common field of view over a portion of the roadway. The example system includes a controller configured to combine sensor data streams for at least a portion of the common field of view from the first and second sensors to detect and/or track the objects.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: August 21, 2018
    Assignee: Image Sensing Systems, Inc.
    Inventors: Chad Stelzig, Kiran Govindarajan, Cory Swingen, Roland Miezianko, Nico Bekooy