Trichromatic Examination Patents (Class 356/406)
  • Patent number: 10090131
    Abstract: An electron-optical system for performing electron microscopy is disclosed. The system includes an electron beam source configured to generate a primary electron beam. The system includes a source lens, a condenser lens and an objective lens disposed along an optical axis. The system includes a first Wien filter disposed along the optical axis and a second Wien filter disposed along the optical axis. The first Wien filter and the second Wien filter are disposed between the source lens and the objective lens. The first Wien filter is configured to correct chromatic aberration in the primary beam. The system also includes a detector assembly configured to detect electrons emanating from the surface of the sample.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: October 2, 2018
    Assignee: KLA-Tencor Corporation
    Inventors: Xinrong Jiang, Christopher Sears
  • Patent number: 9819837
    Abstract: A color management system includes a measurement unit and a controller. The measurement unit measures a color difference between multiple colorimeters by using at least one detection color patch in accordance with colorimetry conditions used for the colorimeters. The controller generates, in a case where the color difference between the colorimeters is equal to or higher than a threshold for the detection color patch, a correction profile for correcting the color difference between the colorimeters.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: November 14, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Pauvi Sulistio, Shinya Takaishi
  • Patent number: 9729761
    Abstract: A color management system includes a memory and a controller. The memory stores a correction profile for a first medium, the correction profile being provided for correcting a difference between multiple colorimeters. The controller uses, as an evaluation index and on a basis of a result of colorimetry performed on a second medium that is different from the first medium, at least one of a color difference, a hue difference, or a lightness difference between the first medium and the second medium and uses the correction profile for the first medium as a correction profile for the second medium in a case where the evaluation index is equal to or lower than a corresponding one of thresholds.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: August 8, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shinya Takaishi, Pauvi Sulistio
  • Patent number: 9723784
    Abstract: A crop quality sensor, comprising an illumination source, an imaging device, and a processor executing application software. The illumination source is shone onto a crop sample, and an image is taken with the imaging device of the illuminated crop sample. The software executing on the processor is used to analyze the image to identify the outlines of individual kernels and to identify which of those outlines contain a specular highlight, indicative that the kernel is whole and unbroken, while the absence of such a specular highlight is indicative of a broken kernel.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: August 8, 2017
    Assignee: Appareo Systems, LLC
    Inventors: Marshall T. Bremer, Nicholas L. Butts
  • Patent number: 9568432
    Abstract: Apparatus and methods may provide for determining a value of chemical parameter. One or more light emitters may be positioned within a housing to emit light through an aperture of the housing. The emitted light may illuminate a color area of a structure that is separable from the housing, such as a test strip, a printed color reference, and so on. A color sensor may be positioned within the housing to capture reflected light and to convert the reflected light to an initial digitized color space that may be usable to determine a color shade of a color area. The reflected light may, for example, be captured independently at least of a dimension (e.g., predetermined size, shape, etc.) of the color area.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 14, 2017
    Assignee: Intel Corporation
    Inventors: Amit S. Baxi, Vincent S. Mageshkumar
  • Patent number: 9488519
    Abstract: The present invention provides a light beam measuring instrument that can securely receive light reflected by a sample. The light beam measuring instrument 1 includes an optical axis tilting mechanism 13 that includes a first tilting mechanism 131 and a second tilting mechanism 132. From the optical axis A1 of irradiation light beam emitted from a light beam source 112, the first tilting mechanism 131 tilts the optical axis A1 about the first tilting axis T1. The second tilting mechanism 132 tilts the optical axis A1 about the second tilting axis T2. The light beam measuring instrument 1 can receive the light reflected by the semiconductor chip C by means of operation of the optical axis tilting mechanism 13 even if the light reflected by the semiconductor chip C is tilted. Accordingly, this apparatus can securely perform measurement or inspection using the light beam.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: November 8, 2016
    Assignee: SAMCO INC.
    Inventors: Kiyoshi Hasegawa, Hiroshi Kawamura, Peter Wood
  • Patent number: 9417131
    Abstract: A toy playset with a colorimeter and method of calibration is provided. The colorimeter may include the combination of a microcontroller with multiple switchable output ports, a light source connected to three of the output ports, and a photo transistor for sensing reflected light. The colorimeter may include four different resistors, each of the resistors connected to a corresponding additional one of the output ports, with the four different resistors connected in parallel to the photo transistor. The colorimeter may be programmed to cycle through the resistors and select a calibration based on a low predefined voltage target for reflection from a black surface and a higher predefined voltage target for reflection from a white surface. The light source is a RGB light source having a tri-band wavelength light.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: August 16, 2016
    Assignee: Mattel, Inc.
    Inventors: Koon Cheong Wong, Yiu Keung Man
  • Patent number: 9327255
    Abstract: By situating a mixing pot in a junction of a first solution and a second solution or after the junction in a channel to temporarily retain these solutions, and situating an analysis sensor downstream from the mixing pot to detect the result of reaction of the first solution and second solution, heterogeneous solutions are mixed so as to react within the channel, and chemical analysis of one of the solutions is performed. According to this system, before the solutions have fully flowed through the remainder of the channel following the junction, the solutions are mixed uniformly at once by the turbulent and vortex flow generated within the mixing pot.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: May 3, 2016
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Naoko Ito, Shoichi Kanayama
  • Patent number: 9134173
    Abstract: A radiation failure inspecting method includes acquiring read data when a scanner reads a radiation surface of a radiation unit in a state where a reading surface of the scanner faces the radiation surface of the radiation unit and the radiation unit emits light; acquiring a value corresponding to a radiation energy of the light from the radiation unit by integrating the read data in a direction corresponding to a predetermined direction on the read data; and determining that a radiation failure occurs in the radiation unit when the value corresponding to the radiation energy of the light is equal to or less than a threshold value.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: September 15, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Mikito Nakajima
  • Publication number: 20150116714
    Abstract: An authenticating device is used for optically authenticating a testing area of a first surface of a valuable document. The valuable document defines a normal perpendicular to the first surface and a datum penetrating the normal and two sides of the valuable document. The datum and the first surface collectively define a first area and a second area adjacent to the first area. The authenticating device includes a first light emitting unit, a second light emitting unit, and a light receiving component. The first light emitting unit is arranged within the first area. The second light emitting unit is arranged within the first area. The light receiving component is arranged within the second area. The first light emitting unit and the second light emitting unit emit light to the testing area in sequence for authenticating the variable document.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: International Currency Technologies Corp.
    Inventors: Yi-Jen PAN, Terng-Chiong YOU, Hung-Fu WAN, Ling-Ta SU, Tien-Yuan CHIEN
  • Patent number: 8917394
    Abstract: In a color imaging system, multiple rendering devices are provided at different nodes along a network. Each rendering device has a color measurement instrument for calibrating the color presented by the rendering device. A rendering device may be a printer in which the measuring of color samples on a sheet rendered by the printer is provided by a sensor coupled to a transport mechanism which moves the sensor and sheet relative to each other, where the sensor provides light from the samples to a spectrograph. A rendering device may also be a display having a member supporting a color measuring instrument for receiving light from an area of the screen. The color measuring instruments provide for non-contact measurements of color samples rendered on a display or a sheet, and are self-calibrating by the use of calibration references.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 23, 2014
    Assignee: RAH Color Technologies LLC
    Inventor: Richard A. Holub
  • Patent number: 8885166
    Abstract: An analyzer for biochemical analysis includes a seat for receiving a recipient. A first light source and a second light source illuminate the recipient with a luminous radiation, respectively, in a first excitation band and in a second excitation band, including a first excitation wavelength and a second excitation wavelength of fluorophores of a first type and of a second type. A first image sensor and a second image sensor are oriented so as to receive light emitted by fluorophores contained in the recipient and are, respectively, provided with a first detection filter and a second detection filter, having, respectively, a first detection passband and a second detection passband, including, respectively, a first emission wavelength and a second emission wavelength of the fluorophores of the first type and of the second type.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 11, 2014
    Assignee: STMicroelectronics S.R.L.
    Inventors: Marco Angelo Bianchessi, Maria Eloisa Castagna, Federica Guerinoni, Alessandro Cocci
  • Patent number: 8867043
    Abstract: A method of determining optical properties of textured surfaces by irradiation of the surface to be investigated. At least part of the radiation irradiated onto the surface and reflected by the latter is detected by a detector device which permits a location-resolved evaluation of the radiation striking it. A first characteristic value from the radiation detected, characteristic of a texture of the surface is detected. A second characteristic value from the radiation detected, characteristic of a further optical property of the surface is detected. And, a result value is determined on the basis of the first characteristic value and the second characteristic value.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: October 21, 2014
    Assignee: BYK-Gardner GmbH
    Inventors: Peter Schwarz, Uwe Sperling
  • CA
    Publication number: 20140285806
    Abstract: The instant invention relates to methods and means for calibrating and matching colors and light. Some embodiments of the methods and means of the invention also incorporate additional functionality including, but not limited to communication, sensing, display and data processing elements. Various embodiments of the methods and means of the invention may be performed by and/or implemented in hardware, in software, by one or more entities, and/or by some combination of hardware, software and/or one or more entities.
    Type: Application
    Filed: March 16, 2014
    Publication date: September 25, 2014
    Inventor: Alfred M. Haas
  • Patent number: 8823937
    Abstract: Products and methods for identifying rock samples based on an average color value for each rock sample.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: September 2, 2014
    Assignee: Ellington & Associates, Inc.
    Inventors: William Eugene Ellington, Jr., Jacob Cecil Moore, Mark Alan Smith, Grigory Leonidovich Dubinsky
  • Patent number: 8780350
    Abstract: The present invention relates to a method of manufacturing an article having a fine concave-convex structure on a surface thereof, the structure having pores in which a pore interval is less than or equal to a wavelength of visible light, including: irradiating a surface of the article having the fine concave-convex structure on the surface, with light from an illumination device; capturing an image of reflected light from the surface of the article having the fine concave-convex structure on the surface using imaging device; acquiring color information from an image captured by the imaging device; and inspecting the article having the fine concave-convex structure based on the color information. According to the present invention, it is possible to easily inspect the depth of the pores of anodized alumina and the pitch between the pores, and to provide a method of manufacturing anodized alumina having a stable pore shape.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: July 15, 2014
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Mitsufumi Fukuyama, Yuji Matsubara
  • Publication number: 20140185048
    Abstract: The present invention provides a method for detecting a defect of a display panel and related defect detecting device. The method includes: utilizing lights having different colors to illuminate the display panel; obtaining a plurality of corresponding grey-scale diagrams when the lights illuminate the display panel; and determining whether the display panel has a defect. If the grey-scale diagrams indicate a grey-scale difference, determining that the display panel has a defect. In this way, the present invention is able to raise defect detecting ability for the display panel and prevent from missing the defects.
    Type: Application
    Filed: January 4, 2013
    Publication date: July 3, 2014
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventor: Yung-Yu Lin
  • Publication number: 20140152990
    Abstract: A hand-held measurement device for appearance analyses includes a measurement array which comprises a number of illumination means for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of colour in a locally resolved way. The spectral pick-up means and the locally resolving pick-up means are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction.
    Type: Application
    Filed: October 30, 2013
    Publication date: June 5, 2014
    Applicant: X-RITE EUROPE GMBH
    Inventors: Peter Ehbets, Beat Frick, Mark Wegmuller, Jorg Hunkemeier, Guido Niederer
  • Patent number: 8692996
    Abstract: A system and method for determining a state of a traffic signal. In one embodiment, a traffic signal state detector includes a lens, a color sensor, and a processor. The color sensor is configured to identify a plurality of colors of light directed to the color sensor by the lens, and a field of view of the color sensor is restricted based on dimensions of a traffic signal. The processor is coupled to the color sensor. The processor is configured to determine a color of light emitted by the traffic signal based on the colors of light identified by the color sensor.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: April 8, 2014
    Assignee: Mesa Engineering, Inc.
    Inventor: Clint A. Davis
  • Patent number: 8659762
    Abstract: An optical measuring element measures forces in at least one direction. The measuring element has a single-piece structure. There is an outside wall with notches introduced therein. Each notch defines parallel edges, and the notches define more or less elastically flexible zones in the structure and constitute the only connection between a first region and a second region of the structure. For optical distance measurements between the two regions of the structure, one or more optical fibers are each attached with one end thereof to a region of the structure such that reflective surfaces are located close to the ends. The reflective surfaces are firmly connected to another region. The optical fibers are disposed on the outside wall.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: February 25, 2014
    Assignee: Sensoptic SA
    Inventors: Axel Bertholds, Pere Llosas, Simon Henein
  • Patent number: 8603772
    Abstract: This invention provides a novel methods and devices for measurement of particle concentration or changes in particle concentration over a wide linear range. The invention comprises one or more radiation sources and one or more detectors contained in a housing which is interfaced to a medium containing particulate matter. The one or more radiation sources are directed into the medium, scattered or transmitted by the particulate matter, and then some portion of the radiation is detected by the one or more detectors. Methods for confining the measurement to a specific volume within the medium are described. Algorithms are provided for combining the signals generated by multiple source-detector pairs in a manner that results in a wide linear range of response to changes in particle concentration. In one embodiment the sensor provides non-invasive measurements of biomass in a bioreactor. In another embodiment an immersible probe design is described, which may be suited for one-time use.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: December 10, 2013
    Assignee: Bug Lab LLC
    Inventors: Martin P. Debreczeny, Jaime Romero, Ethan Petersen
  • Patent number: 8416413
    Abstract: Products and methods for identifying rock samples based on an average color value for each rock sample.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: April 9, 2013
    Inventors: William Eugene Ellington, Jr., Jacob Cecil Moore, Mark Alan Smith, Grigory Leonidovich Dubinsky
  • Patent number: 8325344
    Abstract: At least some aspects of the disclosure are directed towards densitometers and methods of determining optical density of printed images upon media. According to one example, an optical density determination apparatus includes a first light source configured to emit a first light beam in a first direction towards a substrate; a second light source configured to emit a second light beam in a second direction towards the substrate, the second direction being different than the first direction; a first sensor configured to sense light of the first light beam reflected from the substrate; a second sensor configured to sense light of the second light beam reflected from the substrate; and wherein the first and second sensors are configured to provide signals indicative of the light sensed by the first and second sensors and which are useable to determine optical density of the substrate.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 4, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael H. Lee, Daihua Zhang, Omer Gila, William D. Holland
  • Patent number: 8203713
    Abstract: A method and device to determine quantitatively the surface optical characteristics of an object of reference made up of a plurality of optically differentiable layers. The device includes lighting and image capture means, connected to analysing means which execute the method to obtain the parameters of the repair material components best fitting the optical characteristics of the dental environment of the subject under treatment. The result of the analysis through the method in the invention consists mainly in the identification of each one of the various materials which should constitute the different layers, as well as their respective thicknesses, and which are to lead to a dental repair with optimum optical characteristics. It is thus achieved that the repair be visually imperceptible, both under natural light and under ultraviolet light.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: June 19, 2012
    Assignee: Aplik, S.A.
    Inventors: Jaime Ramirez Mancilla, Rodrigo Rubio Aguilar, Daniel Serpell Carriquiry, Nicolas Slusarenko Fernandez, Guillermo Vidal Quevedo
  • Patent number: 8199324
    Abstract: The optical assemblies disclosed herein advantageously utilize a beamsplitting apparatus in association with either (i) the illumination path or (ii) the collection path of a color measurement instrument. For implementations involving the illumination path, the beamsplitting apparatus may be configured to spectrally divide one or more initial beams of light so as to emit a plurality of resultant beams of light, wherein the optical assembly is configured to illuminate a target using at least a first and a second of the plurality of resultant beams of light. Similarly, for implementations involving the collection path, the beamsplitting apparatus may be configured to spectrally divide light received from a target so as to emit a plurality of resultant beams of light, wherein the optical assembly is configured to detect at least a first and a second of the plurality of resultant beams of light.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: June 12, 2012
    Assignee: X-Rite, Inc.
    Inventors: Steven Henry Peterson, Harold VanAken
  • Patent number: 8159673
    Abstract: A light amount detector includes a light emitter, a light receiver, and a light amount detection unit. The light emitter emits light on a detection pattern formed on a detection surface of an image carrier. The light receiver detects diffused light reflected from the detection pattern. The light amount detection unit detects an amount of light received by the light receiver based on detection output of the light receiver. One of the light emitter and the light receiver is provided at a position directly opposite to the detection surface, such that a distribution of sensitivity of the light receiver detecting the diffused light is substantially symmetrical with respect to a detection output peak when the detection surface is substantially parallel to a hypothetical line connecting the light emitter with the light receiver.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: April 17, 2012
    Assignee: Ricoh Company, Ltd.
    Inventor: Katsuyuki Kitao
  • Patent number: 8082015
    Abstract: An embodiment of the invention includes a device, system and method for determining the characteristics of deep tissue. The novel method includes measuring blood flow rate and oxygenation characteristics of the tissue, and determining oxygen metabolism of the tissue as a function of the measure blood flow rate and measure oxygenation. The blood flow rate characteristics are measured as a function of light fluctuations caused by the tissue, while the oxygenation characteristics are measured as a function of transmission of light through the tissue with respect to the wavelength of light. The tissue may be layered tissue, for example, a portion of a brain. The tissue characteristics may be measured during times of varying levels of exercise intensity.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: December 20, 2011
    Assignee: The Trustees Of The University Of Pennsylvania
    Inventors: Arjun G. Yodh, Joel H. Greenberg, Guoqiang Yu, John A Detre, Turgut Durduran, Mark G. Burnett, Emile R. Mohler, III, Harry Quon, Stephen M. Hahn
  • Patent number: 8049892
    Abstract: A method includes receiving light from a material at a digital imaging device. The method also includes filtering the light into at least three spectral bands using a filter, where different regions of the filter pass different spectral bands. The method further includes measuring the light in each of the spectral bands and determining at least one color associated with the material using the measured light in the spectral bands. The different regions of the filter could include multiple masks (where each mask passes one of the spectral bands), different areas of a linear variable filter, and/or individual filters (where each individual filter passes one of the spectral bands). The digital imaging device could include a digital camera. The filter could be formed on a detector in the digital camera, and/or a component of the digital camera could be replaced with the filter.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: November 1, 2011
    Assignee: Honeywell International Inc.
    Inventors: Tarja T. Shakespeare, John F. Shakespeare
  • Patent number: 8045142
    Abstract: A polishing end point detection method is to detect a polishing end point of a workpiece having a multilayer structure. The method is performed by emitting a first light and a second light to a surface of the workpiece at a first angle of incidence and a second angle of incidence, respectively, receiving the first light and the second light reflected from the surface through a polarizing filter, performing a first analyzing process of analyzing a brightness and a saturation of the surface from the first light received, performing a second analyzing process of analyzing a brightness and a saturation of the surface from the second light received, and determining removal of the upper layer based on changes in the brightness and the saturation of the surface.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: October 25, 2011
    Assignee: Ebara Corporation
    Inventor: Toshifumi Kimba
  • Patent number: 8004668
    Abstract: A fluorescent color calibrator for calibrating RGB pixel values is provided. The fluorescent color calibrator includes a plurality of fluorogenic compounds adapted to fluoresce in a visible color spectrum; and a second plurality of fluorogenic compounds adapted to fluoresce in multiple visible gray spectrums. Also provided is a method for using the fluorescent color calibrator to standardize fluorescent colors when viewing with an RGB monitor.
    Type: Grant
    Filed: June 21, 2009
    Date of Patent: August 23, 2011
    Inventors: Jiuan-Jiuan Chen, Paul Messier
  • Publication number: 20110102809
    Abstract: An apparatus detecting the position of the functional layer of the electrode plate includes a first electrode plate sensor disposed at a side of a material to sense start points of electrode plates continuously formed on the material at uniform intervals, a second electrode plate sensor disposed at an other side of the material to sense a length of the electrode plate, a functional layer sensor provided behind the first electrode plate sensor and the second electrode plate sensor above a material traveling direction to sense position and length of the functional layer formed on the electrode by sensing a difference in color, and a controller feeding back a feedback result indicating whether the functional layer is correctly coated through values sensed by the first electrode plate sensor, the second electrode plate sensor, and the functional layer sensor.
    Type: Application
    Filed: July 2, 2010
    Publication date: May 5, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: So-Il MOON, Jae-Sang Hwang, Su-Hwan Kim
  • Patent number: 7933017
    Abstract: A method for characterizing a color reproduction device. A first output color measure responding to a first reference input color value is measured under normal measurement conditions. The measurement conditions are modified and a second output color measure responding to the first reference input color value is measured under the modified measurement conditions. A transformation rule, enabling transformation between the second output color measure and the first output color measure, is calculated from the first color value and the second color value. A first set of output color measures responding to a set of input color values is measured under modified measurement conditions, and the first set of output color measures is converted, using the transformation rule, to a second set of output color measures. A system and a control device are also provided.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: April 26, 2011
    Assignee: Thomson Licensing
    Inventors: Laurent Blondé, Sylvain Thiebaud, Julien Thollot
  • Publication number: 20110090503
    Abstract: An apparatus for detecting arc that can monitor inside of process chamber sensitively and promptly can be provided, and abnormal condition of plasma in process chamber can be detected. And, by installing RGB sensor portion independently or installing the RGB sensor portion in master board, flexibility in configuration can be provided.
    Type: Application
    Filed: May 3, 2010
    Publication date: April 21, 2011
    Inventors: Kang LEE, Sang Jeen HONG, Sang Youl LEE, Jong Hwan Ahn
  • Patent number: 7907780
    Abstract: A method for providing an intensity or brightness measurement using a digital image-capturing device comprising: selecting a target area within a field of view of the image-capturing device, the target area containing pixels; measuring the intensity or brightness of pixels in a target area; accumulating the intensity or brightness values of the pixels in the target area; and determining a pixel value representative of the intensity or brightness of the pixels in the target area. A device for making color measurements comprising an image-capture device, a processor or logic device, and a memory location for accumulating color data, and the processor or logic device is programmed to perform color measurements by accumulating the data for pixels located in the target area in memory, and determining a representative color value.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: March 15, 2011
    Assignee: Color Savvy Systems Limited
    Inventors: Christopher H. Pearson, Gary N. Bodnar, Karl F. Seibert, Ronald J. Duke
  • Patent number: 7898664
    Abstract: A method measures chromaticity values using a colorimeter to solve the drawbacks of conventional technologies, such as an inaccurate illuminant, the filter of color-matching function being difficult to be deposited and manufactured within a filter mod colorimeter, and using an expensive spectrometer within a spectrum mode colorimeter. The spectrometer and the filter of color-matching function is not needed, and an accurate chromaticity value of an object by using a multi-band illuminant illuminating the object and a power meter. Further, the multi-band illuminant can adjust the illumination condition of a standard illuminator under different color temperatures, and the chromaticity values of the object can be measured under different color temperatures. The accuracy of the measured chromaticity values is up to the level of the spectrum mode colorimeter, and the price is less than the spectrum mode colorimeter.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: March 1, 2011
    Assignee: National Central University
    Inventors: Tsung-Hsun Yang, Wei-Ping Lin
  • Patent number: 7899623
    Abstract: Methods and computer program products for evaluating and optimizing one or more markers for use in establishing a prognosis for a patient suffering from a disease are provided. More particularly, the methods include steps for systematically evaluating a number of features that may be extracted from an image of a body sample, such as a histological slide, that has been exposed to one or more biomarkers so as to establish a prognostic decision rule based on one or more of the extracted features such that the decision rule yields a prognosis that is optimally predictive of actual patient outcome. Thus, the methods and computer program products provided yield optimally predictive prognoses to assist clinicians in developing strategies for effective patient care management.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: March 1, 2011
    Assignee: TriPath Imaging, Inc.
    Inventors: Raphael Marcelpoil, Clark Merrill Whitehead, Timothy J. Fischer
  • Publication number: 20110043789
    Abstract: A method for marking and authenticating a security article, such as a banknote, a document, a ticket, a foil, a thread, a label, a card, or a commercial good, so as to provide for an easy authentication of said article by a machine, such as a currency acceptor, a ticket validator, or a hand-held authentication device. The security article is marked with a user-defined design, wherein said marking comprises dyes or pigments belonging to an extended, or hyperchromic color space which is not reproducible by commercially available, 4-color desktop reproduction equipment. The marking is authenticated by mathematically transforming crude spectral information to statistically independent hyper-color coordinates, and comparing selected hyper-color coordinates with corresponding reference values.
    Type: Application
    Filed: August 27, 2010
    Publication date: February 24, 2011
    Applicant: SICPA HOLDING S.A.
    Inventors: Pierre Degott, Claude-Alain Despland, Edgar Müller
  • Patent number: 7889919
    Abstract: An image processing system includes a photographing apparatus and a processing apparatus. The photographing apparatus includes LEDs for emitting light with characteristics of spectroscopic distributions varied in a visible light area, an image pick-up device unit which picks-up a subject image that is illuminated by the LEDs and is formed by an image pick-up optical system and which outputs an image signal, and a control unit. The control unit sequentially lights-on the LEDs upon an instruction for photographing a subject spectroscopic image being input from an operating switch, picks-up the image, and thus controls the operation for capturing subject spectroscopic images. The processing apparatus includes a calculating device which performs a desired image calculation based on the image signal.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: February 15, 2011
    Assignee: Olympus Corporation
    Inventors: Yasuhiro Komiya, Toru Wada, Osamu Konno, Takeyuki Ajito, Tomoyuki Nakamura
  • Publication number: 20100302440
    Abstract: Methods of optimizing the diameters of nanowire photodiode light sensors. The method includes comparing the response of nanowire photodiode pixels having predetermined diameters with standard spectral response curves and determining the difference between the spectral response of the photodiode pixels and the standard spectral response curves. Also included are nanowire photodiode light sensors with optimized nanowire diameters and methods of scene reconstruction.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 2, 2010
    Applicant: ZENA TECHNOLOGIES, INC.
    Inventor: Munib Wober
  • Patent number: 7830549
    Abstract: To perform a method for identifying color measuring strips having measuring areas on printed products, the color measuring strips are scanned with a color measuring instrument. The measured color values acquired by the color measuring instrument are stored in a computer and that the measured color values acquired are each assigned to a printing ink. A sequence formed in this way of printing inks is stored in the computer and then compared with color measuring strip types stored in the computer. The stored color measuring strip type having the greatest probability is then selected.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: November 9, 2010
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Werner Huber, Harald Bucher, Michael Steinle
  • Patent number: 7808617
    Abstract: A distance detecting arrangement employs at least two sensors having different ranges and resolutions of operation. Embodiments disclosed contemplate at least four modes of operation. In a first mode, only one sensor is employed. In a second mode, a longer range and lower resolution sensor is employed until a threshold value of distance is reached, at which point a shorter range and higher resolution sensor is employed. In a third mode, both the longer range and shorter range sensors are employed simultaneously. In a fourth mode, a low resolution profile is used to rescan the object with the high resolution sensor to provide a high resolution profile measurement. Embodiments facilitate the method disclosed by including a beam redirecting apparatus and preferably include a servo position system that can move the sensors and the object relative to each other.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: October 5, 2010
    Assignee: Quality Vision International, Inc.
    Inventors: Eric G. Gesner, David B. Kay
  • Patent number: 7778786
    Abstract: A method for estimating surface moisture content of wood chips for use in a pulp and paper production process comprises measuring chip surface moisture using an infrared surface moisture sensor, and adjusting a calibration of the surface moisture measured with a model using values of a set of optical parameters representing light reflection characteristics of the wood chips, to estimate their surface moisture content.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: August 17, 2010
    Assignee: Centre de Recherche Industrielle du Quebec
    Inventor: Feng Ding
  • Patent number: 7773224
    Abstract: A system (200) and method (800) for determining whether a sample object (203) has a color that is within a predetermined range is provided. The system (200) includes a light source (201) capable of projecting lights having different light wavelength spectrum upon the sample object (203). A controller (222) causes the light source (201) to project a first light wavelength spectrum upon the sample object (203), then another, then another, and so forth. While each light is projecting upon the object, a monochromatic image capture device (202) captures an image having luminous intensity information. The luminous intensity information, or a subset thereof selected by an image selection tool (232) is then compared to the statistical range, which is derived from a plurality of images taken of a reference object (403).
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 10, 2010
    Assignee: Motorola, Inc.
    Inventors: Fan He, Shumin Cheng, Michael Frenzer, Bin Jiang, Vahid Goudarzi
  • Patent number: 7768645
    Abstract: A miniature readhead is provided for photometric color detection using ambient light. The readhead is hand-held, including a superposed plate and tray. The tray receives sample media configured to react and to change color according to an amount of analyte in a sample. The plate is optically transmissive, so that ambient light is transmissible therethrough to the sample media indexed within the tray. An array of light detectors is disposed along the plate, including sets of detectors configured to detect light of at least three mutually distinct wavelengths reflected from the test areas. Light shields superposed with each of the light detectors selectively permit ambient light to pass to the tray, while substantially preventing ambient light from reaching the light detectors prior to reflecting from the test areas. The readhead may be incorporated into a photometric diagnostic instrument configured to analyze the reflections and derive a diagnosis value.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: August 3, 2010
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Juan F. Roman
  • Patent number: 7675621
    Abstract: A two-dimensional colorimeter includes: an image sensing section, having an image sensor constituted of a number of pixels arranged in a two-dimensional manner, for sensing an object image to be measured to acquire a two-dimensional image; a discriminator for discriminating whether a targeted color with respect to the two-dimensional image acquired by the image sensing section is to be corrected in terms of a pixel or pixels; and a calculator for performing a calculation to apply predetermined correction information corresponding to the color to be corrected to the two-dimensional image in terms of a pixel or pixels, based on a discrimination result by the discriminator.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: March 9, 2010
    Assignee: Konica Minolta Sensing, Inc.
    Inventors: Keizou Ochi, Masao Nakamuro
  • Patent number: 7659982
    Abstract: A quantitative evaluation of a color filter (10) in accordance with the capacity of said filter to restore hues comprises the use of a numerical color appearance model. Values of a perceptive attribute are calculated for hue samples (20), by simulating the observation of each of the samples through the filter (10) and without a filter. The values of the perceptive attribute correspond to the visual perception of the samples by an observer (40), and a deviation between the values with and without filter constitutes the result of the evaluation of the filter. Such a method makes it possible to quantitatively rank several color filters, and the ranking obtained corresponds to that which would be established by real observers evaluating the filters.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: February 9, 2010
    Assignee: Essilor International (Compagnie Generale d'Optique)
    Inventors: Gilles Baillet, Bernard Bourdoncle, Margalith Harrar, Françoise Vienot
  • Patent number: 7636163
    Abstract: A color measurement device includes an error detection function for color printing control. The color measurement device includes an optical measurement head, the optical measurement head being moveable linearly along a color bar region of a printing sheet, and being configured for making color measurements with respect to the color bar, and for detecting color measurement errors by determining whether such color measurements are being made at least in part with respect to regions of the printing sheet other than the color bar region. The optical measurement head may further include a pixel array for tracking a center trajectory of the color bar for purposes of detecting the color measurement errors, and a color measurement engine for purposes of making the color measurements with respect to the color bar. The color measurement device may further include a motion control element and a mechanical track to guide the optical measurement head along the color bar region.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: December 22, 2009
    Assignee: X-Rite, Inc.
    Inventors: Douglas V. Baker, Christopher Michael Winczewski, Olivier Calas, Jr.
  • Patent number: 7626728
    Abstract: Color reproducibility needs to be evaluated in consideration of the influence of homogeneity in page image. Hence, a first chart is formed from an image of a uniform density of a region to be evaluated, and data associated with the spectral reflectances of plural points on the first chart are input. Based on the data obtained from the first chart, color differences between a predetermined point and other points on the first chart are calculated. When the calculated color differences fall within a permissible range of heterogeneity of colors in the region, a second chart is formed from an image corresponding to a color target, and data associated with the spectral reflectances of plural points on the second chart are input. Color differences are calculated from the data obtained from the second chart and data associated with the spectral reflectance of the color target.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 1, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohisa Itagaki, Nobuatsu Sasanuma, Masami Tomita, Toshio Saishoji, Satoshi Takayama, Miyoko Hayashi
  • Patent number: 7616314
    Abstract: Methods and apparatuses for determining a color calibration for different spectral light inputs in an imaging apparatus measurement are disclosed herein. In one embodiment, for example, a method for determining a color calibration for different spectral light inputs in an imaging apparatus measurement can include creating a reference color calibration and a reference luminance scaling calibration for each of a plurality of colors. The method can also include measuring a reference gray value R, G, B for each color in an image measurement of the light source. The method can further include calculating an R, G, B gray value for a first pixel in each of three filtered image measurements. The method can then include calculating pixel ratio values from each of the three first pixel gray values and comparing the reference gray values to the pixel ratio values to determine which one or more reference gray values are closest to the pixel ratio values.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: November 10, 2009
    Assignee: Radiant Imaging, Inc.
    Inventors: Douglas Kreysar, Matthew Lekson, Gary Robert Pedeville
  • Patent number: 7599559
    Abstract: A method for providing an intensity or brightness measurement using a digital image-capturing device comprising: selecting a target area within a field of view of the image-capturing device, the target area containing pixels; measuring the intensity or brightness of pixels in a target area; accumulating the intensity or brightness values of the pixels in the target area; and determining a pixel value representative of the intensity or brightness of the pixels in the target area. A device for making color measurements comprising an image-capture device, a processor or logic device, and a memory location for accumulating color data, and the processor or logic device is programmed to perform color measurements by accumulating the data for pixels located in the target area in memory, and determining a representative color value.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: October 6, 2009
    Assignee: Color Savvy Systems Limited
    Inventors: Christopher H. Pearson, Gary Bodnar, Karl F. Seibert, Ronald J. Duke