For Flaws Or Imperfections Patents (Class 356/430)
  • Patent number: 10302488
    Abstract: An optical slit device that combines microelectromechanical design techniques, semiconductor laser technology, and micro-optics to provide a spectrometer entrance slit on a semiconductor substrate with integrated calibration light sources, which integrated light enters the entrance slit and is transmitted down the same optical path as a light source under test and by which the spectrometer can be wavelength calibrated in situ is disclosed.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: May 28, 2019
    Assignee: Ocean Optics, Inc.
    Inventor: Kirk Clendinning
  • Patent number: 9933373
    Abstract: A glass sheet acquisition and positioning mechanism and associated method are utilized in an in-line glass sheet optical inspection system. The mechanism includes an exterior support frame mounted in proximity to one of the glass sheet processing system conveyors, and an interior support frame operably connected to the exterior support frame such that the interior support frame may be selectively positioned from its first orientation to a second orientation whereby the retained glass sheet is positioned between the camera and the screen at a preselected position. The interior support frame is also operably connected to the exterior support frame to provide for positioning of the interior support frame to a third orientation in which the glass sheet is released from the interior support frame for continued movement on the conveyor. An in-line glass sheet optical inspection system incorporating the glass sheet acquisition and positioning mechanism is also disclosed.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: April 3, 2018
    Assignee: GLASSTECH, INC.
    Inventors: Michael J. Vild, Stephen D. Snyder, Jr.
  • Patent number: 9898074
    Abstract: Mapping apparatus includes a transmitter, which emits a beam comprising pulses of light, and a scanner, which is configured to scan the beam, within a predefined scan range, over a scene. A receiver receives the light reflected from the scene and to generate an output indicative of a time of flight of the pulses to and from points in the scene. A processor is coupled to control the scanner so as to cause the beam to scan over a selected window within the scan range and to process the output of the receiver so as to generate a 3D map of a part of the scene that is within the selected window.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 20, 2018
    Assignee: APPLE INC.
    Inventors: Alexander Shpunt, Raviv Erlich
  • Patent number: 9620046
    Abstract: A method of detecting a defect in an organic light-emitting display device includes: preparing an organic light-emitting display device including an organic light-emitting display panel which includes a plurality of pixels, where each of the pixels includes a driving transistor which operates in a saturation region or a transition region based on a potential difference between a source and a drain thereof and outputs a driving current, and an organic light-emitting diode which emits light based on the driving current; providing a plurality of voltages to the organic light-emitting display panel to operate the driving transistor in the transition region, and determining whether the organic light-emitting display device is defective based on an image, which is displayed on the organic light-emitting display panel based on data applied thereto.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: April 11, 2017
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventor: Bong Sub Song
  • Patent number: 9224197
    Abstract: A system and method are provided for employing a unique optical roll scanning technique, scheme or process for detecting and identifying periodic surface defects associated with rolls usable in image production devices. An apparatus is provided for mounting the roll to implement an inspection technique that facilitates forming an image of a surface of the roll by rotating the roll through an entire cycle above a full width scanner device. The formed image of the surface of the scanned roll is filtered and analyzed particularly by applying a Fourier analysis technique, and/or by subjecting the filtered image data to a series of fast Fourier transforms (FFTs), potentially including 2D FFTs. The analysis process allows detected periodic defects in the formed image of the surface of the roll under analysis to be characterized by a magnitude of a response in a spatial frequency domain.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: December 29, 2015
    Assignee: Xerox Corporation
    Inventor: Christopher Jensen
  • Patent number: 9194831
    Abstract: A thermographic test method locally resolves detection and identification of defects near the surface in a test object. A surface area of the test object is heated up. A series of thermographic images following one after another at a time interval is recorded within a heat propagation phase, each image representing a local temperature distribution in a surface region of the test object recorded by the image. Positionally correctly assigned temperature profiles are determined from the images, each positionally correctly assigned temperature profile being assigned to the same measuring region of the test object surface. Variations over time of temperature values are determined from the temperature profiles for a large number of measuring positions of the measuring region. These variations are evaluated on the basis of at least one evaluation criterion indicative of the heat flow in the measuring region.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: November 24, 2015
    Assignee: Institut Dr. Foerster GmbH & Co. KG
    Inventors: Gerhard Traxler, Werner Palfinger
  • Patent number: 9019500
    Abstract: A system for differentiating between oil spots and non-oil spots in a wrapped article comprising a web and a wrapped material. The system includes a heat source that applies heat to a wrapped article for a predetermined amount of time when the wrapped article is placed in a sample area on a surface that is arranged at a predetermined distance away from a heating element of the heat source; and a light source that provides backlighting to the web of the wrapped article when the web has been separated from the wrapped material and placed on a viewing surface of the light source. A method for differentiating between oil spots and non-oil spots in wrapped articles and a field test kit are also provided.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 28, 2015
    Assignee: Altria Client Services Inc.
    Inventors: Narendra K. Meruva, Christopher B. McFarlane, Jennifer H. Smith
  • Patent number: 9013697
    Abstract: A band detection sensor includes LEDs configured to radiate detection light onto one side of a web, photodiodes configured to receive the detection light reflected by the web and output a detection signal corresponding to the detection light, and a discrimination section configured to discriminate bands on the web on the basis of the detection signal from the photodiodes, wherein the discrimination section includes a rise discriminating criterion indicating a rate of rise of the detection signal and generates a band signal indicative of the presence of a band when change of the detection signal fulfills the rise discriminating criterion.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: April 21, 2015
    Assignee: Japan Tobacco Inc.
    Inventors: Shinzo Kida, Takafumi Izumiya
  • Patent number: 8760667
    Abstract: The present invention relates to a method and a device for the detection of a substrate edge in a printing machine comprising a substrate transport unit that defines a substrate transport path (8). In this method, at least one light value of a first section of a sensor line (10) and a dark value of a second section of the sensor line are determined, and a threshold value is calculated based thereon. When the threshold value on one pixel is exceeded and the threshold value on another pixel is not reached, it is possible to calculate a position of the substrate edge. The device comprises a light source arrangement (5) for generating diffuse light, and comprises a sensor line for the detection of light from the light source arrangement.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: June 24, 2014
    Assignee: Eastman Kodak Company
    Inventors: Thomas Jacobsen, Wolfgang Kuphaldt, Joerg Zessin
  • Patent number: 8654333
    Abstract: A surface inspection apparatus includes a light source for applying a detection laser beam to a film sample. A light receiver has plural photomultiplier tubes arranged in a width direction of the film sample, for receiving output light reflected by the film sample. A defect detector detects a defect on the film sample according to an output signal output by each of the photomultiplier tubes. A sensitivity corrector sets sensitivity of the photomultiplier tubes to process an output of the light receiver for output noise suppression. Specifically, the sensitivity corrector determines a set sensitivity of the photomultiplier tubes by correcting a sensitivity characteristic thereof for abnormality detection, to keep a sensitivity difference between the photomultiplier tubes as small as a predetermined value or less. Furthermore, plural light valves upstream from the light receivers are controlled by the sensitivity corrector for their transmittance.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: February 18, 2014
    Assignee: Fujifilm Corporation
    Inventors: Bungo Shigeta, Ippei Takahashi
  • Patent number: 8593635
    Abstract: Web supports (30, 32, 34, 36, 38, 330, 332, 334, 336, 338, 340) form a first web path (46, 48, 346, 348) in which a web is presented opposite to a camera (26, 326) and an alternative second web path (46, 48, 346, 348) in which the web (230) is overturned prior to being presented opposite to the camera (26, 326).
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: November 26, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Paul C. Ray, Madhu Babu, Nadeem E. Khan, Raul A. Sumera, Robert W. Braun
  • Patent number: 8506758
    Abstract: A method for guiding web patching, using a re-reeler, in connection with a paper machine and an off-line coating machine, in which method a defect map of the web is created on the paper machine, to show deviations some of which are shown on the coating machine, using selected criteria, to the operator, the deviations being patched using the re-reeler, guided by the defect map and preset patching rules. On the coating machine, the virtual location of the selected deviations is monitored through the coating machine and if a possible web break occurs, a deviation is localized relative to the web break, and on the basis of this monitoring, feedback is provided to the patching rules of the re-reeler, in order to optimize them.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: August 13, 2013
    Assignee: Metso Automation Oy
    Inventor: Hannu Ruuska
  • Patent number: 8428686
    Abstract: A system and method for monitoring a physiological parameter includes a garment that includes a fabric that exhibits both a light transmission property and a light reflection property. The amount of light transmitted through the fabric relative to the amount of light reflected by the fabric changes when the fabric stretches in response to motion, such as the motion induced by physiological activity (e.g., heart rate). The system includes at least one source of radiation having wavelength(s) in the range of 400 to 2200 nanometers and at least one detector responsive to such incident radiation. The source and detector are associated with the fabric such that the reception of incident radiation by the detector is directly affected by a change in the amount of light transmitted through the fabric relative to the amount of light reflected by the fabric when the fabric stretches.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: April 23, 2013
    Assignee: Textronics, Inc.
    Inventors: Chia Kuo, George W. Coulston
  • Patent number: 8405831
    Abstract: Methods and systems for indicating the displacement of a flexible web are described. An elongated, flexible web includes an integral scale having scale features configured to modulate energy directed towards the web. A transport mechanism provides relative movement between the web relative to a transducer. The transducer detects energy modulated by the scale features and generates a signal indicting a continuous web displacement based on the modulated energy.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: March 26, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Daniel H. Carlson, Dale L. Ehnes, Daniel S. Wertz, Luis A. Aguirre, Levent Biyikli, Alan B. Campbell
  • Patent number: 8345246
    Abstract: A running yarn line inspection method inspects yarn lines running in parallel in the same surface. The running yarn line inspection method is provided with a first illumination means and a line sensor for imaging the yarn lines on the side of the first surface of the running surface of the yarn lines and a second illumination means on the side of the second surface, and comprises a data processing means which processes data obtained by the line sensor and a recording means which records data processed by the data processing means with time.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: January 1, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Kazuhisa Miyahara, Kouji Kagitani, Hiroki Nakajima
  • Patent number: 8145291
    Abstract: A garment and system includes a monitoring fabric that exhibits a light reflection property and substantially no light transmission property when the fabric is illuminated with light having wavelength(s) in the range of 400 to 2200 nanometers. The amount of useful light reflected by the fabric into an aperture of acceptance defined with respect to an imaginary axis extending from the fabric relative to the amount of light lost to the aperture of acceptance detectably changes when the fabric stretches in response to motion, as the motion induced by physiological activity (e.g., heart rate). The system includes at least one radiation source and at least one radiation detector, with the detector disposed in the aperture of acceptance.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: March 27, 2012
    Assignee: Textronics, Inc.
    Inventor: George W. Coulston
  • Patent number: 8131008
    Abstract: Methods, apparatuses, and systems for image-based measurement and inspection of pre-engineered structural components, such as building trusses and wall panels. A system can include: a light source; a camera; a first memory storage; a second memory storage; and a processing unit configured to (i) detect a characteristic of the structural component, (ii) compare the characteristic to a corresponding characteristic of at least one reference data, and (iii) indicate a result of the comparison. A method can include: causing a light source to illuminate a portion of the structural component, receiving a reflection of the light source from the illuminated portion of the structural component, and storing data corresponding to the intensity of the reflection; comparing the stored data to at least one reference data; and indicating a result of the comparison.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: March 6, 2012
    Assignee: Building Component Verification Systems, Inc.
    Inventors: Cyril Robert Thompson, Steven Corley
  • Patent number: 8115929
    Abstract: A system for detecting the lateral movement of thread includes an optical device configured to emit an optical signal. The optical device includes a resonant cavity. The system further includes a driver configured to drive the optical signal. A mechanical guide is configured to receive a moving thread that scatters the optical signal such that a portion of the optical signal is reflected back into the resonant cavity of the optical device; causing a change in the optical signal. An optical detector is configured to detect the changed optical signal. Lateral movement detection circuitry is configured to detect lateral movements such as vibrations.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: February 14, 2012
    Assignee: Finisar Corporation
    Inventors: Jimmy A. Tatum, James K. Guenter, Andre Lalonde
  • Patent number: 8078307
    Abstract: A defect testing apparatus for testing defects of optical film sheet-shaped product of an optical displaying apparatus, which includes a defect detecting means for detecting defects of a monolayer body and/or a laminate body constituting the sheet-shaped product in a state in which a protective layer on a surface of the sheet-shaped product is not disposed and defect information preparing means for preparing defect information which is information related to the defects detected by the defect detecting means, and the defect information is used for producing the sheet-shaped product provided in a roll form or in separate sheets.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: December 13, 2011
    Assignee: Nitto Denko Corporation
    Inventor: Hiromichi Ohashi
  • Patent number: 8069859
    Abstract: A wrapping paper inspection apparatus includes a nozzle arranged in a wrapping-paper discharge path, in which wrapping paper is wound and continuously discharged, for wetting one side of the wrapping paper with a liquid; an image pickup section for irradiating light to the wrapping paper wetted with the liquid by the nozzle, detecting light transmitted through or reflected from the wrapping paper, and generating an image signal; and a wrapping paper inspection section for determining defects in wrapping paper portions applied or affixed with a low flame spread material, from the image signal generated by the image pickup section, to thereby inspect such defects easily and reliably. This inspection apparatus can be mounted to a tobacco wrapping machine.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: December 6, 2011
    Assignee: Japan Tobacco Inc.
    Inventors: Keisuke Minami, Tsuyoshi Futamura
  • Publication number: 20110242537
    Abstract: A surface inspection apparatus includes a light source for applying a detection laser beam to a film sample. A light receiver has plural photomultiplier tubes arranged in a width direction of the film sample, for receiving output light reflected by the film sample. A defect detector detects a defect on the film sample according to an output signal output by each of the photomultiplier tubes. A sensitivity corrector sets sensitivity of the photomultiplier tubes to process an output of the light receiver for output noise suppression. Specifically, the sensitivity corrector determines a set sensitivity of the photomultiplier tubes by correcting a sensitivity characteristic thereof for abnormality detection, to keep a sensitivity difference between the photomultiplier tubes as small as a predetermined value or less. Furthermore, plural light valves upstream from the light receivers are controlled by the sensitivity corrector for their transmittance.
    Type: Application
    Filed: March 24, 2011
    Publication date: October 6, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: BUNGO SHIGETA, IPPEI TAKAHASHI
  • Patent number: 7989769
    Abstract: Thermographic imaging equipment is incorporated directly into cabinets housing electrical switchgear to provide for dedicated, nearly continuous monitoring of the contained equipment. A mechanical scanning technique may allow low-cost sensors to provide essentially continuous thermographic monitoring. Dedicated thermal imaging equipment allows automatic analysis through predefined temperature threshold maps.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: August 2, 2011
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: David D. Brandt, David L. Jensen
  • Patent number: 7986410
    Abstract: This invention relates to a method for detecting a tear in a fibrous web in a drying section of a machine for producing the fibrous web, whereby the fibrous web is passed through the drying section by way of at least one dryer fabric, whereby the tear is detected by at least one optical web tear detection device, which includes at least one luminous source and one detector, and whereby a cut-off apparatus for the fibrous web is directly or indirectly activated by the web tear detection device. The optical web tear detection device is operated over an extended wave length range in order to detect a tear in the fibrous web reliably. In addition, the invention relates to an apparatus for performing the inventive method.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: July 26, 2011
    Assignee: Voith Patent GmbH
    Inventors: Armin Bauer, Dietmar Üblacker
  • Patent number: 7978328
    Abstract: A course material that is applied to a substrate during fabrication of a composite item is inspected by a system that includes a vision assembly. The vision assembly includes an area light, a line generator, a sensor, and an image processor. The area light illuminates an area of the course material. The line generator generates a line of illumination across the area. The sensor captures an image of the area. The image processor analyzes the image. The image processor is configured to identify debris on the course material in response to the area light being activated and the image processor is configured to identify placement aberrations in response to the line generator being activated.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: July 12, 2011
    Assignee: The Boeing Company
    Inventors: Roger W. Engelbart, Reed Hannebaum, Tim Pollock
  • Patent number: 7901096
    Abstract: The invention is directed to a method for illuminating an object and projecting its image on a ground glass screen. Optical comparators conventionally use incandescent illumination, either mercury arc or halogen. The use of an array of high intensity LED devices, provides many options for packaging the required optical components used in comparators.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: March 8, 2011
    Assignee: Dorsey Metrology International
    Inventor: Peter Donald Klepp
  • Patent number: 7889907
    Abstract: A system for inspecting a composite material laid onto a substrate by a lamination machine. An imaging assembly attached to a rear portion of a delivery head of the machine obtains an image of at least a portion of the laid material beneath the imaging assembly. A processor inspects the image to detect a flaw. This system can provide an image of laid tape obtained close to a tape compaction point and can be implemented as a retrofit or as original equipment in lamination machines.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: February 15, 2011
    Assignee: The Boeing Company
    Inventors: Roger W Engelbart, Reed Hannebaum, Brian S Hensley, Timothy T Pollock, Samuel D Orr
  • Patent number: 7847943
    Abstract: A sensor is provided that measures web caliper using optical and magnetic measuring devices. The optical measuring devices may employ a confocal chromatic aberration method to accurately determine the distance to the moving web and the magnetic devices may be ferrite core coil and target. Means of stabilizing a moving web are included for improving dynamic measurement accuracy.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: December 7, 2010
    Assignee: ABB Ltd.
    Inventors: Ake Hellstrom, Rambod Naimi, Michael O'Hora
  • Patent number: 7839547
    Abstract: An inspection apparatus includes a light source unit which irradiates illumination light onto a hologram of a medium from a predetermined direction at which diffraction light from the hologram is obtained, a first light receiving member which receives the diffraction light from the hologram, a second light receiving member which receives transmitted part of illumination light irradiated onto the hologram, having passed through the medium, and an identification processing unit which identifies authenticity of the hologram from the diffraction light received by the first light receiving member and identifies a defect of the hologram from the transmitted light received by the second light receiving member.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: November 23, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Junji Miura, Takahisa Nakano
  • Patent number: 7783103
    Abstract: A defect detecting device includes: a block generating section dividing an inspection image in which a defective region will be detected into a plurality of blocks; an intra-block sum calculating section calculating an intra-block sum for each of the blocks generated by the block generating section, the intra-block sum being a sum of pixel data for pixels in that block; and a statistical processing section and a defect determining section determining whether there exists a defective region by determining through statistical processing whether the intra-block sums have an outlier. Accordingly, the device determines whether there is a defective region in a digital image quickly and using small circuitry.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: August 24, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshimasa Kuchii, Hideyuki Ichihara
  • Patent number: 7773225
    Abstract: A device for the optical analysis, including two-dimensional, of a thread or yarn (F) fed to a textile machine, said device comprising at least one light emitter element (3, 4) and at least one receiver element (5), said emitter element (3, 4) generating a light signal which strikes said thread (F) before being sensed by the receiver element (5) which, based on this sensing, defines a characteristic of the thread (F) such as its movement or its stoppage, a dimensional defect or another dimensional characteristic, between said light emitter element (3, 4) and said receiver element (5), there being interposed light transparent means (6) which are encountered by the light signal after it has interacted with the thread (F), and which act as a thread guide.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: August 10, 2010
    Inventor: Tiziano Barea
  • Patent number: 7755749
    Abstract: An apparatus inspecting a superconducting wire includes: a blue LED emitting light in a direction normal to a front surface of a superconducting wire to illuminate the front surface; a red LED emitting light in a direction forming an angle with the direction normal to the front surface of the superconducting wire to illuminate the front surface; a color line sensor mainly receiving light reflected by the superconducting wire, and mainly receiving light diffused by the superconducting wire; and a computer accumulating and outputting a quantity of light received by the color line sensor. The apparatus can inspect with high sensitivity whether the superconducting wire has a defect or not.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: July 13, 2010
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Shinichi Kobayashi, Noritsugu Hamada
  • Patent number: 7746463
    Abstract: Disclosed are an apparatus for inspecting defect of a rubbing cloth and a rubbing apparatus with the same. The apparatus for inspecting defect of the rubbing cloth includes a housing surrounding the periphery of the rubbing cloth, a transfer unit connected to the upper portion of the housing for transferring the housing along a length direction of a rubbing roll, an illumination unit installed at one side in the housing for illuminating the rubbing cloth, and a camera unit installed at the other side in the housing to correspond to the illumination unit on the basis of the rubbing roll. The apparatus for inspecting defect of the rubbing cloth can rapidly and precisely detect the defect of the rubbing cloth by using the illumination unit and the camera unit.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: June 29, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Yong-Chul Yoo
  • Publication number: 20100157301
    Abstract: A running yarn line inspection method inspects yarn lines running in parallel in the same surface. The running yarn line inspection method is provided with a first illumination means and a line sensor for imaging the yarn lines on the side of the first surface of the running surface of the yarn lines and a second illumination means on the side of the second surface, and comprises a data processing means which processes data obtained by the line sensor and a recording means which records data processed by the data processing means with time.
    Type: Application
    Filed: April 25, 2008
    Publication date: June 24, 2010
    Applicant: Toray Industries ,Inc.
    Inventors: Kazuhisa Miyahara, Kouji Kagitani, Hiroki Nakajima
  • Patent number: 7725152
    Abstract: A garment and system includes a monitoring fabric comprising a first plurality of reflective yarns knitted or woven with a second plurality of stretchable yarns. The fabric exhibits both a light transmission property and a light reflection property. The amount of light transmitted through the fabric relative to the amount of light reflected by the fabric changes when the fabric stretches in response to motion, such as the motion induced by physiological activity (e.g., heart rate). The system includes at least one source of radiation having wavelength(s) in the range of 400 to 2200 nanometers and at least one detector responsive to such incident radiation. The source and detector are associated with the fabric such that the reception of incident radiation by the detector is directly affected by a change in the amount of light transmitted through the fabric relative to the amount of light reflected by the fabric when the fabric stretches.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: May 25, 2010
    Assignee: Textronics, Inc.
    Inventors: Chia Chyuan Kuo, George W. Coulston
  • Publication number: 20100117010
    Abstract: The present invention relates to a system for measuring wrinkles on a web in an R2R process. The system includes a laser generation device (100) for projecting a laser beam, emitted in a linear shape, onto a surface of a web (200), which is stopped or moving. A camera (300) captures a band of light, formed when the laser beam generated by the laser generation device (100) is projected onto the surface of the web (200), and transmitting image data of the captured light band. A measurement device (400) calculates coordinates of an arbitrary location on the web (200) on a basis of the image data transmitted from the camera (300), processes an image of the light band on a basis of the calculated coordinates, and displays the processed image. Accordingly, the results of reliable wrinkle measurement are provided for a web in an R2R process.
    Type: Application
    Filed: June 20, 2008
    Publication date: May 13, 2010
    Applicant: Konkuk University Industrial Cooperation Corp.
    Inventors: Sung Lim Ko, Dong Keun Shin, Hoang Minh To, Kee Hyun Shin
  • Patent number: 7715897
    Abstract: A garment and system includes a monitoring fabric that exhibits a light reflection property and substantially no light transmission property when the fabric is illuminated with light having wavelength(s) in the range of 400 to 2200 nanometers. The amount of useful light reflected by the fabric into an aperture of acceptance defined with respect to an axis extending from the fabric relative to the amount of light lost to the aperture of acceptance detectably changes when the fabric stretches in response to motion, as the motion induced by physiological activity (e.g., heart rate). The system includes at least one radiation source and at least one radiation detector, with the detector disposed in the aperture of acceptance.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: May 11, 2010
    Assignee: Textronics, Inc.
    Inventor: George W. Coulston
  • Patent number: 7684033
    Abstract: In an apparatus at a spinning preparatory plant for detecting foreign objects, for example, pieces of cloth, tapes, string, pieces of sheeting and the like, in fibre material, the fibre material is transportable in an air flow through a fibre transport duct or a feed chute and an optical sensor system is associated with the duct or chute, the wall surfaces of which have at least one transparent region through which the sensor system detects the fibre-air flow. To permit the at least one transparent region to be kept clean in a simple manner during operation, and to permit an unobstructed detection of the foreign objects, the transparent region projects into the fibre-air flow and the fibre-air flow is able to flow along the transparent region in force-applying contact therewith.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: March 23, 2010
    Assignee: Trützschler GmbH & Co. KG
    Inventors: Guido Engels, Franz Nohr, Konrad Temburg
  • Publication number: 20100045988
    Abstract: The invention relates to a method for finding holes, and other related defects and measuring characteristics of sheets of industrial material. Optical detections systems are constantly plagued by intense ambient light and challenged in accuracy. The invention exhibits a defect detection method and means that is resistant to intense ambient light and is capable of inspecting sheets of material (410, 510, 610, 710) continuously, without integration of long periods. In the invention, synchronous detection between the optical transmitters and receivers is utilised. The invention is applicable for inspecting and measuring materials like paper, metal, rubber, plastic, aluminium foil, copper foil, film, coated metal sheet or any other sheet-like material that could run on a production line. The invention is also applicable for finding special defects like holes, pinholes, scratches, spots, cracks, edge faults, streaks, surface faults or any other conceivable defects.
    Type: Application
    Filed: August 27, 2009
    Publication date: February 25, 2010
    Applicant: SR-INSTRUMENTS OY
    Inventors: Iiro HIETANEN, Heimo Keranen, Seppo Pyorret
  • Patent number: 7619740
    Abstract: Microgloss is a novel two-dimensional representation of how light is reflected from a target surface area. Systems and methods for measuring the microgloss can yield data for characterizing the reflective properties of a variety of products for which surface appearance is important. These products include paper, plastics, metals, and ceramics. Microgloss characteristics can be used as parameters for controlling the supercalendering process in papermaking. Microgloss characteristics can be used in conjunction with standard gloss to classify products.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: November 17, 2009
    Assignee: Honeywell International Inc.
    Inventor: Reijo Kuusela
  • Patent number: 7605921
    Abstract: A method for finding holes, and other related defects and measuring characteristics of sheets of industrial material. Optical detections systems are constantly plagued by intense ambient light and challenged in accuracy. The invention exhibits a defect detection method and apparatus that is resistant to intense ambient light and is capable of inspecting sheets of material (410, 510, 610, 710) continuously, without integration of long periods. In the invention, synchronous detection between the optical transmitters and receivers is utilized. The invention is applicable for inspecting and measuring materials like paper, metal, rubber, plastic, aluminum foil, copper foil, film, coated metal sheet or any other sheet-like material that could run on a production line. The invention is also applicable for finding special defects like holes, pinholes, scratches, spots, cracks, edge faults, streaks, surface faults or any other conceivable defects.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: October 20, 2009
    Assignee: SR-Instruments Oy
    Inventors: Iiro Hietanen, Heimo Keranen, Seppo Pyorret
  • Patent number: 7599052
    Abstract: A defect marking device includes a flaw inspection device which has a plurality of light-receiving parts that identify reflected lights coming from an inspection plane of a metal strip under two or more of optical conditions different from each other; a signal processing section that judges the presence/absence of surface flaw on the inspection plane based on a combination of reflected light components identified under these optical conditions different from each other; and a marking device which applies marking that indicates information relating to the flaw on the surface of the metal strip.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: October 6, 2009
    Assignee: NKK Corporation
    Inventors: Mitsuaki Uesugi, Shoji Yoshikawa, Masaichi Inomata, Tsutomu Kawamura, Takahiko Oshige, Hiroyuki Sugiura, Akira Kazama, Tsuneo Suyama, Yasuo Kushida, Shuichi Harada, Hajime Tanaka, Osamu Uehara, Shuji Kaneto, Masahiro Iwabuchi, Kozo Harada, Shinichi Tomonaga, Shigemi Fukuda
  • Publication number: 20090237664
    Abstract: This invention relates to a method for detecting a tear in a fibrous web in a drying section of a machine for producing the fibrous web, whereby the fibrous web is passed through the drying section by way of at least one dryer fabric, whereby the tear is detected by at least one optical web tear detection device, which includes at least one luminous source and one detector, and whereby a cut-off apparatus for the fibrous web is directly or indirectly activated by the web tear detection device. The optical web tear detection device is operated over an extended wave length range in order to detect a tear in the fibrous web reliably. In addition, the invention relates to an apparatus for performing the inventive method.
    Type: Application
    Filed: March 18, 2008
    Publication date: September 24, 2009
    Inventors: Armin Bauer, Dietmar Ublacker
  • Patent number: 7593106
    Abstract: A dual sided sheet surface property sensor has the capability to simultaneously measure both sides of a moving sheet at the same location of the sheet on the top and bottom surfaces of the sheet. The energy directed to each side of the sheet may include UV, visible light, infrared, radio frequency, microwave, broadband, or X-ray. The sensor has a source and associated detector on each side of the moving sheet and each source provides energy at a different modulation frequency and the associated detector is responsive only to that frequency.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: September 22, 2009
    Assignee: ABB Ltd.
    Inventor: Ake Arvid Hellstrom
  • Patent number: 7551284
    Abstract: Disclosed are a method and a device for optically monitoring a running natural fiber strand. According to the invention, a light signal is sent onto the fiber strand and is emitted once again at a different point of the fiber strand surface, is received by a detector, and is evaluated so as to determine a foreign matter, thereby allowing light-guiding foreign matters to be distinguished from the non-light-guiding natural fibers.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: June 23, 2009
    Assignee: Saurer GmbH & Co. KG
    Inventor: Gerald Berger
  • Patent number: 7542821
    Abstract: A conversion control system is described that includes a database to store data defining a set of rules and an interface to receive local anomaly information from a plurality of different analysis machines associated with a plurality of manufacturing process lines that perform a plurality of operations on a web of material, and each of the manufacturing process lines includes position data for a set of regions on the web containing anomalies. The system also includes a computer that registers the position data of the local anomaly information for the plurality of manufacturing process lines to produce aggregate anomaly information. The system further includes a conversion control engine that applies the rules to the aggregate anomaly information to determine which anomalies represent actual defects in the web for a plurality of different products.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: June 2, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Steven P. Floeder, Kenneth G. Brittain, James A. Masterman, Carl J. Skeps
  • Patent number: 7495766
    Abstract: In accordance with the present application, a method and system is provided for measuring an amount of surface material on a wire. A section of the wire and a beam generating device configured to generate a high energy beam are placed in a positional relationship with each other. The relationship permits a high energy beam generated from the beam generating device to impinge upon a location on the section of the wire. A reflected beam from the high energy beam is reflected from the section of the wire and is detected by a detector positioned at a location to receive the reflected beam. The beam received by the detector is investigated to determine the characteristics of the surface material on the wire.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: February 24, 2009
    Assignee: Linccln Global, Inc.
    Inventors: Kevin Butler, André J. Sommer
  • Publication number: 20090002707
    Abstract: Disclosed are a method and a device for optically monitoring a running natural fiber strand. According to the invention, a light signal is sent onto the fiber strand and is emitted once again at a different point of the fiber strand surface, is received by a detector, and is evaluated so as to determine a foreign matter, thereby allowing light-guiding foreign matters to be distinguished from the non-light-guiding natural fibers.
    Type: Application
    Filed: January 14, 2005
    Publication date: January 1, 2009
    Applicant: Saurer Gmbh & Co. KG
    Inventor: Gerald Berger
  • Publication number: 20090002686
    Abstract: An apparatus for detecting residual oxide or scale present on a metal surface following pickling or mechanical processing of the metal surface to remove scale makes use of laser light that is reflected off of the metal surface, a reflection detector that detects the absolute reflectivity and polarization of the reflecting laser light, a roughness measurement sensor, and a computerized control system that uses combinations of the information from the three sensors to provide an indication of the scale remaining on the metal surface.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Applicant: THE MATERIAL WORKS, LTD.
    Inventors: Kevin C. Voges, Stuart H. Critchley, Victor Wasyl Chupil
  • Patent number: 7460233
    Abstract: The devices, systems and methods may continuously detect surface characteristics of a sample surface at a tilt. The exemplary system may have a conveying device for moving a sample surface, a light source for reflecting a beam of light off the sample surface, and a light detector with a light detection surface for continuous light detection. A lens may be used to reflect the beam of light from the sample surface and focus the beam of light on the light detection surface of the light detector. The area of the beam of light at the point of focus on the light detection surface may be unequal to the light detection surface. A reference analyzer may be used to determine the optical surface based on a comparison of the reflected light received with known reflected light values for known sample surfaces.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: December 2, 2008
    Assignee: Honeywell International Inc.
    Inventor: Reijo Kuusela
  • Patent number: 7453571
    Abstract: A calibration standard, for calibrating lateral or angular dimensional measurement systems, is provided. The standard may include a first substrate spaced from a second substrate. The standard may be cross-sectioned in a direction substantially perpendicular or substantially non-perpendicular to an upper surface of the first substrate. The cross-sectioned portion of the standard may form a viewing surface of the calibration standard. The standard may include at least one layer disposed between the first and second substrates. The layer, or a feature etched into the first or second substrate or a feature etched into the layer may have a traceably measured thickness or may be oriented at a traceably measured angle with respect to the viewing surface. A thickness or angle of the layer or other feature may be traceably measured using any technique for calibrating a measurement system with a standard reference material traceable to a national testing authority.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: November 18, 2008
    Assignee: KLA-Tencor Corporation
    Inventors: Marco Tortonese, Jerry Prochazka, Ellen Laird, Pat Brady, René M. Blanquies