Requiring Scanning Of A Source Beam Patents (Class 356/3.09)
  • Patent number: 11636621
    Abstract: Embodiments facilitate the calibration of cameras in a live action scene using fixed cameras and drones. In some embodiments, a method configures a plurality of reference cameras to observe at least three known reference points located in the live action scene and to observe one or more reference points associated with one or more moving cameras having unconstrained motion. The method further configures the one or more moving cameras to observe one or more moving objects in the live action scene. The method further receives reference point data in association with one or more reference cameras of the plurality of reference cameras, where the reference point data is based on the at least three known reference points and the one or more reference points associated with the one or more moving cameras.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: April 25, 2023
    Assignee: UNITY TECHNOLOGIES SF
    Inventors: Dejan Momcilovic, Jake Botting
  • Patent number: 11600022
    Abstract: Embodiments facilitate the calibration of cameras in a live action scene using drones. In some embodiments, a method configures a plurality of reference cameras to observe at least one portion of the live action scene. The method further configures one or more moving cameras having unconstrained motion to observe one or more moving objects in the live action scene and to observe at least three known reference points associated with the plurality of reference cameras. The method further receives reference point data in association with the one or more moving cameras, where the reference point data is based on the at least three known reference points. The method further computes a location and an orientation of each moving camera of the one or more moving cameras based on one or more of the reference point data and one or more locations of one or more reference cameras of the plurality of reference cameras.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: March 7, 2023
    Assignee: UNITY TECHNOLOGIES SF
    Inventors: Dejan Momcilovic, Jake Botting
  • Patent number: 10852396
    Abstract: Examples relate to a turntable peripheral for three dimensional (3D) scanning. In some examples, 3D scan data of a real-world object is obtained while the object is rotated by the turntable peripheral. Positioning commands are sent to the turntable peripheral to rotate the object. The 3D scan data is collected while the turntable peripheral is in an untilted and/or tilted position.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: December 1, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Bradley Short, Jinman Kang, Stephen George Miller, Jordi Morillo Peres, Eric Monsef, Ben Wynne, Matthew Leck, Daniel Jordan Kayser, Eddie Licitra, Christopher S Tanner
  • Patent number: 10200683
    Abstract: Devices and methods are described herein for providing foveated image projection. In general, at least one source of laser light is used to generate a laser beam, and scanning mirror(s) that reflect the laser beam into a pattern of scan lines. The source of light is controlled to selectively generate projected image pixels during a first portion of the pattern of scan lines, and to selectively generate depth mapping pulses during a second portion of the pattern of scan lines. The projected image pixels generate a projected image, while the depth mapping pulses are reflected from the surface, received, and used to generate a 3-dimensional point clouds that describe the measured surface depth at each point. Thus, during each scan of the pattern both a projected image and a surface depth map can be generated, with the surface depth map used to modify some portion of the projected pixels.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 5, 2019
    Assignee: Microvision, Inc.
    Inventors: P. Selvan Viswanathan, Jari Honkanen, Douglas R. Wade, Bin Xue
  • Patent number: 9958383
    Abstract: An active illumination range camera that acquires a range and a picture image of a scene and provides a reflectance for a feature in the scene responsive to a distance for the feature provided by the range image, a registered irradiance for the feature provided by the picture image and registered irradiance for a region of a calibration surface corresponding to the feature provided by an image of the calibration surface acquired by the range camera.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: May 1, 2018
    Assignee: Microsoft Technology Licensing, LLC.
    Inventors: Michael Anthony Hall, Kameron Rausch, Abdelrehim Ahmed, Beibei Cheng, Ben Walker, Jonathan Hoof, Daniel Kennett
  • Patent number: 9869549
    Abstract: A robotic laser-pointing apparatus has an instrument center, a first rotation axis, a second rotation axis, and a pointing axis, with the first rotation axis, the second rotation axis and the pointing axis in a known relationship to the instrument center. A laser source provides a pointing-laser beam along the pointing axis. A pointing drive system aims the laser beam by rotating the pointing axis about the instrument center in response to a pointing-direction control. Focusing optics having a focusing-optics drive serve to focus the pointing-laser beam in response to a focusing-optics control. A processor, responsive to target-position information, generates the pointing-direction control and the focusing-optics control. Some embodiments include an electronic-distance-measurement system having a measurement beam. Some embodiments provide for compensation of aiming errors of the pointing-laser beam and the measurement beam.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 16, 2018
    Assignee: Trimble AB
    Inventors: Christian Graesser, Robert Miller, Mikael Nordenfelt
  • Patent number: 9606237
    Abstract: A spatially coded structured light is generated by an array of laser diodes (1) in order to perform structured light triangulation. The laser diodes (1a-c) are VCSEL, where the light is emitted in the direction perpendicular to the semiconductor wafer surface. Plural such laser diodes (1a-c) are integrated monolithically to form an array (1). The position of the individual laser diodes in the array is coded spatially to form a non-regular unique pattern. The light output by the lasers is projected by a refractive or diffractive optical system (2) into the space to be monitored to form the structured light pattern. An object (5) to be investigated may be illuminated by the VCSEL array (1) and a camera (3) captures the frames. A processing unit (4) controls the power of VCSEL (1a-c) and processes the data from the camera (3).
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: March 28, 2017
    Assignee: IEE International Electronics & Engineering S.A.
    Inventors: Norbert Herschbach, Jean-Luc Kaiser
  • Patent number: 9551575
    Abstract: A laser scanner includes a light emitter that generates a modulated light beam for measuring distance and red, blue, and green lights for capturing colors. The beam is collimated and directed to an object point with a steering mirror. Reflected light from the object point is directed by the steering mirror onto scanner optics. The reflected light is directed to an optical receiver that sends the first light in a first path and the second, third and fourth lights in a second path to a color receiver. The first light is demodulated to determine distance to the target. The second, third, and fourth lights are separated and measured to determine three color values. The color values are combined with the measured distance value to determine a color 3D coordinate for the object point.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: January 24, 2017
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Robert E. Bridges, Reinhard Becker
  • Patent number: 9234843
    Abstract: A monitoring system 100 comprising a material transport system 104 providing for the transportation of a substantially planar material 102, 107 through the monitoring zone 103 of the monitoring system 100. The system 100 also includes a line camera 106 positioned to obtain multiple line images across a width of the material 102, 107 as it is transported through the monitoring zone 103. The system 100 further includes an illumination source 108 providing for the illumination of the material 102, 107 transported through the monitoring zone 103 such that light reflected in a direction normal to the substantially planar surface of the material 102, 107 is detected by the line camera 106. A data processing system 110 is also provided in digital communication with the line camera 106.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: January 12, 2016
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Bhushan Sopori, Przemyslaw Rupnowski, Michael Ulsh
  • Patent number: 9197790
    Abstract: An optical scanning projection module includes a scanning light component including a plurality of sub light sources and at least one light-splitting element, a main light reflective element, a scanning element and a photosensitive element. Sub light beams of the sub light sources are converged to form a main light beam. One of the sub light beams travels to the light-delivering element to form a partial reflective light beam and a partial penetrating light beam. With a scanning manner, the partial reflective light beam or the partial penetrating light beam is reflected by the scanning element to be an inspection light, and the main light beam is reflected by the scanning element to be a projection light. The photosensitive element outputs a sensing signal according to the inspection light. Thus, the optical scanning projection module controls the operation of the scanning light component according to the sensing signal.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: November 24, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ming-Chieh Chou, Han-Wei Su, Yao-Hui Lee, Yu-Jen Wang
  • Patent number: 9057610
    Abstract: A robotic laser-pointing apparatus has an instrument center, a first rotation axis, a second rotation axis, and a pointing axis, with the first rotation axis, the second rotation axis and the pointing axis in a known relationship to the instrument center. A laser source provides a pointing-laser beam along the pointing axis. A pointing drive system aims the laser beam by rotating the pointing axis about the instrument center in response to a pointing-direction control. Focusing optics having a focusing-optics drive serve to focus the pointing-laser beam in response to a focusing-optics control. A processor, responsive to target-position information, generates the pointing-direction control and the focusing-optics control. Some embodiments include an electronic-distance-measurement system having a measurement beam. Some embodiments provide for compensation of aiming errors of the pointing-laser beam and the measurement beam.
    Type: Grant
    Filed: March 9, 2013
    Date of Patent: June 16, 2015
    Assignee: Trimble A.B.
    Inventors: Christian Graesser, Robert Miller, Mikael Nordenfelt
  • Patent number: 8970827
    Abstract: A fast spatial light modulator based on a linear MEMS ribbon array enables a depth capture system to operate in structured light and time-of-flight modes. Time-of-flight depth information may be used to phase unwrap structured light depth information. Combined structured light and time-of-flight systems offer precise depth resolution over a wide range of distances.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: March 3, 2015
    Assignee: Alces Technology, Inc.
    Inventors: David M Bloom, Matthew A Leone
  • Patent number: 8958056
    Abstract: A triangulation light sensor includes at least one light transmitter for transmitting a light signal into a detection zone, a light receiver having a plurality of receiver elements for receiving light from the detection zone reflected diffusely and/or specularly, and a reception optics arranged between the detection zone and the light receiver in the beam path, with the position of a light spot produced on the light receiver in a triangulation direction by the reflected light resulting in dependence on the distance of the object. The reception optics includes at least one multisegmented lens element having a plurality of lens segments with mutually spaced apart optical axes in the triangulation direction and at least one freeform lens element or one diffractive-optical element having a multisegmented lens element having a plurality of lens segments with optical axes spaced apart from one another in the triangulation direction.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: February 17, 2015
    Assignee: Sick AG
    Inventors: Friedhelm Wiethege, Gerhard Merettig
  • Publication number: 20140340668
    Abstract: The present invention relates to an apparatus for measuring a distance, the apparatus including a light transmitter including a light source configured to emit a light, and a collimator lens configured to emit a light by converting the light emitted from the light source to a collimation light, and a light receiver including a first mirror configured to reflect the collimation light emitted from the collimator lens to an object, a lens configured to concentrate a light reflected or dispersed from the object to a spot, and a photo-detector configured to form a spot concentrated with light on the lens, wherein an optical axis of the light source matches a rotation shaft of the photo-detector, the light transmitter is fixed and the light receiver rotates about the optical axis of the light source.
    Type: Application
    Filed: October 21, 2011
    Publication date: November 20, 2014
    Inventors: Gyeongeon Lee, Sungjin Cho, Sunghoon Cha, Hyunjoon Kim
  • Patent number: 8891066
    Abstract: In the method for geo-referencing of optical remote sensing images of an area of the earth's surface, the geo-referencing is corrected based on an SAR image which is geo-referenced.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: November 18, 2014
    Assignee: Deutsches Zentrum für Luft- und Raumfahrt e.V.
    Inventors: Richard Bamler, Peter Reinartz, Sahil Suri
  • Patent number: 8860929
    Abstract: A laser rangefinder includes a scanning laser emitter emitting a narrow laser beam, a controller in communication with the scanning laser emitter and configured to control the scanning laser emitter to emit the laser beam to scan a preset range in a preset manner, a laser detector positioned adjacent to the scanning laser emitter and configured to capture an image of a spot formed by the laser beam reflected off an object; and a processor in communication with the controller and the laser detector. The processor is configured to obtain an angle that the laser beam is tilted and process the image to obtain position coordinates of the spot in the image. The processor is further configured to calculate a distance from the laser rangefinder to the object based upon the angle and the position coordinates of the spot.
    Type: Grant
    Filed: August 26, 2012
    Date of Patent: October 14, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chen-Yu Yu
  • Patent number: 8803055
    Abstract: A volumetric error compensation measurement system and method are disclosed wherein a laser tracker tracks an active target as the reference point. The active target has an optical retroreflector mounted at the center of two motorized gimbals to provide full 360 degree azimuth rotation of the retroreflector. A position sensitive detector is placed behind an aperture provided at the apex of the retroreflector to detect the relative orientation between the tracker laser beam and the retroreflector by measuring a small portion of the laser beam transmitted through the aperture. The detector's output is used as the feedback for the servo motors to drive the gimbals to maintain the retroreflector facing the tracker laser beam at all times. The gimbals are designed and the position of the retroreflector controlled such that the laser tracker always tracks to a pre-defined single point in the active target, which does not move in space when the gimbals and/or the retroreflector makes pure rotations.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: August 12, 2014
    Assignee: Automated Precision Inc.
    Inventors: Kam C. Lau, Yuanqun Liu, Guixiu Qiao, Liangyun Xie
  • Patent number: 8788154
    Abstract: A construction machine control system comprises a laser surveying instrument for projecting N-shaped beams in rotary irradiation, a construction machine operated within a predetermined range of the N-shaped beams, and an elevation angle detecting unit. The construction machine comprises a working mechanical unit for carrying out construction operation, a machine control device for controlling the working mechanical unit, and at least three beam detectors disposed at known positions with respect to reference position of the construction machine. The beam detectors detect the three fan beams and output result of photodetection. The elevation angle detecting unit obtains elevation angles of each of the beam detectors with respect to the laser surveying instrument based on result of photodetection of three fan beams from the beam detectors. The machine control device is configured to control tilting of the working mechanical unit based on the elevation angle obtained.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 22, 2014
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Raymond M. O'Connor, Kaoru Kumagai, Jun-ichi Kodaira
  • Patent number: 8786835
    Abstract: A multifunctional detector for emitting and receiving optical signals in order to determine the presence, location, and range movement of a player within a field of regard is disclosed. The detector generally includes a laser module operable for emitting an optical signal; an optional fiber optical delay line; a microcontroller/processor; a faceted scanning mirror pattern having multiple facets with each facet being tilted downward to allow for unique depressions for reflecting and scattering optical signals emitted by the laser module; a spinner/motor for driving and rotating the faceted mirror pattern; an optional combiner for separating emitted optical signals from the laser module or combining reflected optical signals from an reflective source; and a transceiver with an integrated APD receiver for receiving reflected optical signals combined from the combiner and transmitting reflected optical signal data to a central controller or other players. A method of using the detector is also disclosed.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: July 22, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: Pete F. Reardon, Steve Preston, Kevin E. Keene, Wayne P. Parades
  • Patent number: 8743346
    Abstract: The present invention provides an inexpensive range image sensor and etc. A range image sensor comprises diffractive optical elements and on which are formed diffractive gratings that change a traveling direction of incident parallel light so that in a coordinate space defined by a xyz-axis, the incident parallel light is split into split beams, and angles formed by the x-axis and line segments determined by projected light spots formed by the split beams on a predetermined projection plane intersecting the z-axis become predetermined angles. Furthermore, the range image sensor is provided with a distance determining unit for determining distances to the projected light spots on the basis of the tilting with respect to the x-axis of the line segments determined by the projected light spots formed on the object by the split beams.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: June 3, 2014
    Assignee: Casio Computer Co., Ltd.
    Inventor: Hideaki Inoue
  • Patent number: 8736820
    Abstract: Disclosed is apparatus for distinguishing between ground and an obstacle for autonomous mobile vehicle, comprising an upper 2D laser radar 1, a lower 2D laser radar 2, and a processing unit 10, the processing unit 10 comprising a distance data receiving part 11, an inclination calculating part 12, a ground and obstacle determining part 13, and a transmitting part. Also disclosed is a method for distinguishing between ground and an obstacle for autonomous mobile vehicle by using the apparatus for distinguishing between ground and an obstacle for autonomous mobile vehicle of claim 1, in which the detected object is determined as an obstacle when the actual inclination (g) of the detected object is larger than the reference inclination, and as ground when the actual inclination (g) of the detected object is smaller than the reference inclination.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: May 27, 2014
    Assignee: Agency for Defense Development
    Inventors: Tok Son Choe, Jeong Sook Chae, Yong Woon Park, Jun Kim
  • Patent number: 8724089
    Abstract: A method for building a fast scan system is provided in which a scanner moves the scan sensors faster than scanners of the prior art, even though the total distance that the scan sensors move longer. The scan system includes (a) a scan sensor that measures the scan target by moving around it, and (b) a data processing system that calculates a parameter of the scan target from the collected data. The scan sensor, which has a limited sensing bandwidth, is moved along multiple paths along the target at a scan speed that is faster than the scan speed determined by the scan sensor bandwidth, so as to obtain a clear signal directly from the scan sensor output. The target is then recovered from the scan output using a compressed sampling data recovery data processing method.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: May 13, 2014
    Inventor: Wensheng Hua
  • Patent number: 8724093
    Abstract: A division line depicted on a road is detected. A beam-formed electromagnetic wave is repetitively at intervals transmitted toward the road viewed from a vehicle to scan in the vehicle width direction. Each beam-formed electromagnetic wave is radiated to a radiation area on the road, and the radiation areas made by transmitting the beam-formed electromagnetic wave a plurality of times virtually produces a scan area on the road. Every beam-formed electromagnetic wave, distance data indicative of a distance between a division line on the road and the vehicle is measured based on information about a reflected electromagnetic wave. The distance data measured is received to detect the division line based on characteristics of changes in a sequence of the distance data produced by mapping the received distance data in a scanning order of the beam-formed electromagnetic wave.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: May 13, 2014
    Assignee: DENSO CORPORATION
    Inventors: Hiroshi Sakai, Hideaki Tanaka
  • Patent number: 8724094
    Abstract: An apparatus and method for recognizing presence of an object is provided, the apparatus and method are mounted on or implemented a vehicle. In the apparatus and method, by scanning a beam-shaped electromagnetic wave, data showing reflection intensities of reflected waves and distances between the vehicle and objects outside the vehicle are obtained. Based on the detected data, characteristics presented by frequency distributions of the distances and intensity frequency distributions of the refection intensities obtained in multiple rows in a field of view in the height direction of the vehicle. The characteristics depend on an angle of the electromagnetic wave to a road on which the vehicle travels. It is determined that the characteristics are obtained from the road when the characteristics meet predetermined requirements.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: May 13, 2014
    Assignee: DENSO CORPORATION
    Inventors: Takayuki Miyahara, Takashi Ogawa
  • Patent number: 8681317
    Abstract: A target equipped with a reflector can be tracked in a measuring system including a laser tracker. The reflector is tracked by means of a tracking unit in a normal tracking mode and by means of a surveying device in an extraordinary tracking mode. A capturing unit having a detection range lying between the detection ranges of the tracking unit and of the surveying device is also present. If the target cannot be detected by the tracking unit but can be detected by the capturing unit, the orientation of the tracking unit is controlled according to a measurement by the capturing unit. If the target can then be detected by the tracking unit, a transition to the normal tracking mode is initiated. If the target can be detected only by the surveying device, the orientation of the tracking unit is controlled according to a measurement of the surveying device.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: March 25, 2014
    Assignee: Leica Geosystems AG
    Inventors: Daniel Moser, Joel Martin, Konrad Von Arb
  • Patent number: 8654314
    Abstract: The system includes a rotary turret platform for aiming of a high power laser beam. The system further includes a turret payload device coupled to the rotary turret platform. The system further includes an off-axis telescope coupled to the turret payload, having an articulated secondary mirror for correcting optical aberrations, and configured to reflect the high power laser beam to a target through a first of at least two conformal windows. The system further includes an illuminator beam device configured to actively illuminating the target to generate a return aberrated wavefront through the first of the at least two conformal windows. The system further includes a coarse tracker coupled to the turret payload, positioned parallel to and on an axis of revolution of the off-axis telescope, and configured to detect, acquire, and track the target through the second of the at least two conformal windows.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: February 18, 2014
    Assignee: Raytheon Company
    Inventors: William B. King, John D. Isker, Chaunchy F. Mckearn, Eric J. Griffin
  • Publication number: 20140046589
    Abstract: A measuring system for determining 3D coordinates of measurement points on an object surface which has a scanning apparatus for measuring the measurement points on the object surface and for determining inner measurement point coordinates in an inner scanning coordinate system. Furthermore, a referencing arrangement for producing referencing information for referencing the inner measurement point coordinates in the outer object coordinate system and an evaluation unit for determining the 3D coordinates of the measurement points in the outer object coordinate system on the basis of the inner measurement point coordinates and the referencing information are provided such that the inner measurement point coordinates are in the form of 3D coordinates in the outer object coordinate system. The scanning apparatus is in this case carried in an unmanned, controllable, automotive air vehicle.
    Type: Application
    Filed: April 13, 2012
    Publication date: February 13, 2014
    Applicant: HEXAGON TECHNOLOGY CENTER GMBH
    Inventors: Bernhard Metzler, Knut Siercks
  • Publication number: 20130308117
    Abstract: An apparatus and method for correcting errors in measurement of three-dimensional coordinates of a retroreflector by a coordinate measurement device is provided. The method includes measuring a plurality of first angles, a plurality of first and second displacements along an axis, sending a beam of light to the retroreflector target, measuring two angles and a distance to the retroreflector, and determining the three-dimensional coordinates of the retroreflector.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 21, 2013
    Applicant: FARO TECHNOLOGIES, INC.
    Inventor: Robert E. Bridges
  • Patent number: 8576402
    Abstract: A system for optical navigation includes a light source and an imaging system. The light source illuminates a navigation surface. The navigation surface reflects light from the light source. The imaging system is located approximately within a path of the reflected light. The imaging system includes a lens, a mask, and an image sensor. The lens receives reflected light from the navigation surface. The lens focuses a specular portion of the reflected light to a focus region. The mask is located at approximately the focus region. The mask filters out substantially all of the specular portion of the reflected light and passes at least some of a scatter portion of the reflected light outside of the focus region. The image sensor generates a navigation signal based on the scattered portion of the light that passes outside the focus region and is incident on the image sensor.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: November 5, 2013
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventor: Omid Momtahan
  • Publication number: 20130286375
    Abstract: A laser rangefinder includes a scanning laser emitter emitting a narrow laser beam, a controller in communication with the scanning laser emitter and configured to control the scanning laser emitter to emit the laser beam to scan a preset range in a preset manner, a laser detector positioned adjacent to the scanning laser emitter and configured to capture an image of a spot formed by the laser beam reflected off an object; and a processor in communication with the controller and the laser detector. The processor is configured to obtain an angle that the laser beam is tilted and process the image to obtain position coordinates of the spot in the image. The processor is further configured to calculate a distance from the laser rangefinder to the object based upon the angle and the position coordinates of the spot.
    Type: Application
    Filed: August 26, 2012
    Publication date: October 31, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHEN-YU YU
  • Patent number: 8548619
    Abstract: A maintenance system for an assembly comprises a storage medium containing an as-built computer-aided design model of the assembly, a displaying means for displaying the as-built computer-aided design model, a metrology device for measuring a location of at least one characteristic of the assembly and creating as-built data regarding the location, and a replacing means for replacing a part of the assembly with a replacement part. The replacing means determines the location for the replacement part on the assembly by analyzing the as-built computer-aided design model and the data created by the metrology device.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: October 1, 2013
    Assignee: The Boeing Company
    Inventor: Michael C. Richey
  • Patent number: 8404301
    Abstract: The invention relates to a control method for producing ground markings (M), with a reference beam generator (4) for determining a reference plane, a reception of the reference beams by means of an optical detector (3), wherein the position of an application unit (2) for the marking substance can be derived relative to the reference plane by using the received reference beams, a derivation of the orientation relative to the reference plane, and a control of an application of the marking substance to produce ground markings (M) according to the orientation. According to the method, the intensity in the solid angle covered by the reference beam is varied in time during the production of the marking.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: March 26, 2013
    Assignee: Leica Geosystems AG
    Inventor: Klaus Schneider
  • Patent number: 8405884
    Abstract: A scanner including: a transparent plate; a light emitting unit that emits light to an object on the transparent plate; a sensor to form an image of the object; a focusing lens unit that is arranged on a light path between the transparent plate and the sensor, to focus light from the object onto the sensor; and a controller to determine whether a foreign substance is disposed in the light path, using the image, calculates a position of the foreign substance, and corrects the image on the basis of the calculated position of the foreign substance.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-kyung Hong, Jonghyon Yi
  • Patent number: 8287136
    Abstract: A display apparatus is provided which, when projecting a video onto a curved surface of an object for display, can realize an undistorted display of the video. The measuring means outputs the distance information representing the distance to the object. Based on the distance information produced by the measuring means, the curved surface contour is detected with high precision. According to at least the detected curved surface contour distortions, pixels of the display image are unevenly rearranged to correct the video information before it is output. This arrangement realizes an undistorted display of video when the video is projected onto the curved surface of the object.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: October 16, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Tomoki Kobori, Satoshi Ouchi, Koji Hirata, Hidehiro Ikeda, Kazuo Shikita
  • Patent number: 8284483
    Abstract: A method for acquiring signals in laser scanning microscopy, includes the steps of: moving a focused optical excitation beam relative to an object to be measured so that the focus point of the beam follows a predetermined path in the space of the object; and acquiring optical measurement signals along the path according to at least one acquisition parameter; characterized in that the path of the excitation beam is determined so as to substantially minimize the variations of the optical properties of at least one portion of the environments crossed by the excitation beam between consecutive acquisitions, and in that at least one acquisition parameter among the acquisition parameters is modulated during the movement of the excitation beam. A device for implementing the method is also described.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: October 9, 2012
    Assignee: Ecole Polytechnique
    Inventors: Emmanuel Jean-Marc Beaurepaire, Israel Veilleux, Nicolas Olivier, Delphine Malvina Daniele Marie Debarre, Jean-Louis Martin
  • Publication number: 20120105821
    Abstract: A target equipped with a reflector can be tracked in a measuring system including a laser tracker. The reflector is tracked by means of a tracking unit in a normal tracking mode and by means of a surveying device in an extraordinary tracking mode. A capturing unit having a detection range lying between the detection ranges of the tracking unit and of the surveying device is also present. If the target cannot be detected by the tracking unit but can be detected by the capturing unit, the orientation of the tracking unit is controlled according to a measurement by the capturing unit. If the target can then be detected by the tracking unit, a transition to the normal tracking mode is initiated. If the target can be detected only by the surveying device, the orientation of the tracking unit is controlled according to a measurement of the surveying device.
    Type: Application
    Filed: June 14, 2010
    Publication date: May 3, 2012
    Applicant: LEICA GEOSYSTEMS AG
    Inventors: Daniel Moser, Joel Martin, Konrad Von Arb
  • Publication number: 20120044326
    Abstract: The invention relates to a laser scanner device (1) having a laser beam emission apparatus (2) which is designed to emit at least one laser beam (3) in an emission area, having a mirror (4), which is arranged at least partially in the emission area, and having a receiving apparatus which is designed to receive reflections of the laser beam (3). The laser scanner device (1) has a first drive device (10, 40), a first kinematic chain (11, 12, 13, 16, 17, 18, 42) which can be moved by the first drive device (10, 40), a second drive device (20, 41) and a second kinematic chain (21, 22, 23, 26, 27, 28, 43) which can be moved by the second drive device (20, 41), wherein the mirror (4) is connected to the first and to the second kinematic chain and can be scanned in mutually independent coordinate directions (X, Y) via the first and the second kinematic chain.
    Type: Application
    Filed: January 27, 2011
    Publication date: February 23, 2012
    Inventors: Steffen Michaelis, Stefan Krause
  • Patent number: 8116853
    Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: February 14, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Douglas P. Hart, Federico Frigerio, Davide M. Marini
  • Patent number: 8115908
    Abstract: While position measurement of an edge position of a thermal shield takes place in a short time with high working efficiency, the edge position can be measured accurately without variation. First determination takes place while a distance is measured with a first scanning interval. When a change in a measured distance which can be determined as the edge position is determined as a result, an optical scanning position is returned by a predetermined amount reversely to the scanning direction (or reversely to the scanning direction), and while laser beam is scanned again from the returned optical scanning position, second determination takes place while measuring the distance with a second scanning interval shorter than the first scanning interval.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: February 14, 2012
    Assignee: Sumco Techxiv Corporation
    Inventors: Toshio Hayashida, Ayumi Kihara, Naoji Mitani
  • Patent number: 8000181
    Abstract: A beam irradiation device includes a light source for emitting laser light, an actuator for displacing a propagation direction of the laser light in accordance with a control signal, and a scan expansion lens for increasing a swing width of the laser light to be generated by the actuator. A spectral element is arranged between the actuator and the scan expansion lens. The spectral element allows at least a part of the laser light to be incident from the actuator to transmit, and reflects at least a part of the laser light to be incident from the scan expansion lens. The beam irradiation device further includes a light detector for receiving the laser light to be reflected on the spectral element to output an electrical signal.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: August 16, 2011
    Assignees: SANYO Electric Co., Ltd., SANYO Optec Design Co., Ltd.
    Inventor: Masato Yamada
  • Publication number: 20100165321
    Abstract: While position measurement of an edge position of a thermal shield takes place in a short time with high working efficiency, the edge position can be measured accurately without variation. First determination takes place while a distance is measured with a first scanning interval. When a change in a measured distance which can be determined as the edge position is determined as a result, an optical scanning position is returned by a predetermined amount reversely to the scanning direction (or reversely to the scanning direction), and while laser beam is scanned again from the returned optical scanning position, second determination takes place while measuring the distance with a second scanning interval shorter than the first scanning interval.
    Type: Application
    Filed: August 25, 2008
    Publication date: July 1, 2010
    Inventors: Toshio Hayashida, Ayumi Kihara, Naojl Mitani
  • Patent number: 7679725
    Abstract: A laser scanner apparatus is disclosed herein for measuring the geometry and physical dimensions of one or more objects in a specified location or platform. The specified location or platform is within a range less than a predetermined maximum object distance. The laser scanner includes a waveform generator that generates a predetermined reference waveform to an analog laser that provides an modulated laser beam responsive to the reference waveform, an optical scanning system which 1) transmits and scans the object with the modulated laser light beam and 2) includes a means for receiving reflected the modulated laser light from the surface of an object on the platform or specified location, an avalanche photo-detector positioned to receive the processed modulated light from the optical processing system, and convert energy in the incident light into an amplitude-modulated range signal, a mixer is provided to down-convert the frequency of the range signal into a lower (LF) frequency.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: March 16, 2010
    Inventors: Dean Greenberg, David Lilly
  • Publication number: 20100053591
    Abstract: A encoded image projection system (100) is configured to determine the proximity of the system to a projection surface (106). The encoded image projection system (100) includes a light encoder (105) that scans a non-visible light beam (115) on the projection surface (106) selectively when scanning visible light to create an image. A detector (118) is then configured to receive reflections of the non-visible light beam (115) from the projection surface (106). A control circuit (120) is configured to determine the distance (124) between the projection surface (106) and the system from, for example, intensity data or location data received from the detector (118). Where the distances (124) are below a threshold, the control circuit (120) can either reduce the output power of the system or turn the system off.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 4, 2010
    Applicant: MICROVISION, INC.
    Inventors: Gregory T. Gibson, Joshua M. Hudman, Margaret K. Brown, Christian Dean DeJong
  • Patent number: 7450251
    Abstract: Systems and techniques for laser metrology. A system may include a laser source and a fanning apparatus configured to generate a fanned laser beam. The fanned laser beam may be scanned across the surface of an object, and may reflect off a plurality of targets positioned on the surface. A position detection module may determine a position of the metrology targets based on the reflected beam.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: November 11, 2008
    Assignee: The Boeing Company
    Inventors: Ketao Liu, Peter J. Sedivec, Douglas Bender, Gregory S. Becker, John Y. Liu, Richard W. Guthrie, Mark A. Lundgren
  • Patent number: 7411660
    Abstract: A laser straight ruler having a main body and a beam scanner installed on the main body. A laser beam is scanned to form a beam spot on an object. A position sensing device receives a laser beam reflected by the object and senses a position of the beam spot. A signal processing unit drives the beam scanner and processes a signal of the position sensing device. A display displays a change in a distance between the main body and the object and data including a measured distance value from the signal processing unit. An input portion inputs data including adjustment of a scanning width of the beam spot and sets start and end positions of the measured distance. A straight distance of the object is measured or the beam spot having a scanning width corresponding to a measured distance or a predetermined distance is projected to the object.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: August 12, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-chul Cho, Seok-mo Chang
  • Patent number: 7339148
    Abstract: A scanning optical microscope including: a light source; a lens for altering the cross-sectional shape aspect ratio of a beam of light emitted from the light source; at least one lens for converging beams of light of different cross-sectional shape aspect ratio to create a linear light; a first light modulation member able to impart shade to the converged linear light; a lens that can form the light to which the shade has been imparted as a parallel light; a scanning member that can alter the angle of illumination; a lens for focusing the light to which the shade has been imparted; an objective lens for projecting the light to which the shading has been imparted to a sample body; and a lens for imaging the reflected light from the sample body or the light generated by the sample body on to a sensor.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: March 4, 2008
    Assignee: Olympus America Inc.
    Inventors: Yoshihiro Kawano, Kiyoshi Koike
  • Patent number: 7333181
    Abstract: A Sensor Chip Assembly (SCA) contains a focal plane array constructed as a semiconductor chip sandwich. One slice contains an array of PSDs made from IR sensitive semiconductor material, and the other slice contains Trans Impedance Amplifiers (TIAs)—and associated on-chip signal processing elements from an electronic semiconductor material. The SCA resembles those made for pixelized imaging IR SCA focal planes, but the configuration and implementation of which is for a PSD focal plane array. The use of these techniques assures that the PSD focal plane array possesses the required attributes. Interconnect technology is widely available from most IR fabrication houses to connect the IR array with the TIA circuits.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: February 19, 2008
    Assignee: Oceanit Laboratories, Inc.
    Inventors: Basil H. Scott, Randy Wolfshagen, Jeff Buck
  • Patent number: 7230724
    Abstract: An improved three-dimensional (3D) measuring apparatus for scanning an object and a measurement head of a measuring apparatus and a method for using the measuring apparatus for scanning an object.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: June 12, 2007
    Assignee: Specialty Minerals (Michigan) Inc.
    Inventors: Hannu Ensio Jokinen, Stefan Kirchhoff, Christoph Carlhoff
  • Patent number: 6947820
    Abstract: The present invention provides a solution that enables a single rotary laser apparatus to control more than one construction machines so that the construction machines can simultaneously level the terrain up or down to different elevations, respectively.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: September 20, 2005
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Fumio Ohtomo, Hayashi Kunihiro
  • Patent number: 6927862
    Abstract: A three-dimensional shape and color detecting apparatus that detects a three-dimensional shape of an object and a color thereof is provided with an illuminating system that emits light to illuminate the object, and a light receiving device that receives a reflected component of the light from the object. In this structure, the illuminating system is configured to emit the light from a surface having a predetermined area to the object.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: August 9, 2005
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Takeo Iwasaki