With Aperture Mask Patents (Class 356/310)
  • Patent number: 10699506
    Abstract: An imaging system (200) for imaging and generating a measure of authenticity of an object (10) comprises a dispersive imaging arrangement (30) and an image sensor arrangement (60). They are positioned so that, when electromagnetic radiation (20) from the object (10) illuminates the dispersive imaging arrangement (30), the radiation splits out in different directions into at least a non-dispersed part (40) and a dispersed part (50), and those are imaged by the image sensor arrangement (60). The imaging system (200) is configured to then generate a measure of authenticity of the object (10) depending at least on a relation between the imaged dispersed part, the imaged non-dispersed part, and reference spectral information. The invention also relates to imaging methods, computer programs, computer program products, and storage mediums.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: June 30, 2020
    Assignee: SICPA HOLDINGS SA
    Inventors: Jean-Luc Dorier, Xavier-C├ędric Raemy, Todor Dinoev, Edmund Halasz
  • Patent number: 10670512
    Abstract: The Intrinsic Hyper-Spectral Flow Cytometer (IHSFC) and its associated methodology, improves current flow cytometry by eliminating the need of associated hardware-based elements currently used for spectral data detection. The (IHSFC), rather than using narrow band lasers to excite or interrogate the analytes, the flow stream is excited by a wide wavelength range beam. The raw data generated by the (IHSFC) are as follows; forward light scatter, right angle light scatter, coherent spectral data and non-coherent spectral data. The intrinsic fluorescent spectral components are extracted from the coherent and non-coherent spectral data.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: June 2, 2020
    Assignee: Center for Quantitative Cytometry
    Inventors: Abraham Schwartz, Frank Mandy
  • Patent number: 10365218
    Abstract: Systems and methods for hyperspectral imaging are described. In one implementation, a hyperspectral imaging system includes a sample holder configured to hold a sample, an illumination system, and a detection system. The illumination system includes a light source configured to emit excitation light having one or more wavelengths, and a first set of optical elements that include a first spatial light modulator (SLM), at least one lens, and at least one dispersive element. The illumination system is configured to structure the excitation light into a predetermined two-dimensional pattern at a conjugate plane of a focal plane in the sample, spectrally disperse the structured excitation light in a first lateral direction, and illuminate the sample in an excitation pattern with the one or more wavelengths dispersed in the first lateral direction.
    Type: Grant
    Filed: May 27, 2017
    Date of Patent: July 30, 2019
    Assignee: VERILY LIFE SCIENCES LLC
    Inventors: Charles Santori, Supriyo Sinha, Cheng-Hsun Wu, James Higbie, Seung Ah Lee
  • Patent number: 10215636
    Abstract: An imaging device according to an aspect of the present disclosure is provided with: a light source that, in operation, emits pulsed light including components of different wavelengths; an encoding element that has regions each having different light transmittance, through which incident light from a target onto which the pulsed light has been irradiated is transmitted; a spectroscopic element that, in operation, causes the incident light transmitted through the regions to be dispersed into light rays in accordance with the wavelengths; and an image sensor that, in operation, receives the light rays dispersed by the spectroscopic element.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: February 26, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Toshiya Fujii, Takamasa Ando
  • Patent number: 10162244
    Abstract: A device is disclosed that includes a comparator and a configurable heater. The comparator is configured to compare a transmission phase of a light transmitted in a photonic component with a reference phase to generate a phase difference. The configurable heater is disposed with respect to the photonic component and includes a plurality of heater segments, wherein a number of the heater segments in operation is trimmable based on the phase difference.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 25, 2018
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hui-Yu Lee, Jui-Feng Kuan
  • Patent number: 10018817
    Abstract: Embodiments of the invention provide an imaging system and method using adaptive optics and optimization algorithms for imaging through highly scattering media in oil reservoir applications and lab-based petroleum research. Two-/multi-photon fluorescence microscopy is used in conjunction with adaptive optics for enhanced imaging and detection capabilities in scattering reservoir media. Advanced fluorescence techniques are used to allow for super-penetration imaging to compensate for aberrations both in and out of the field of interest, extending the depth at which pore geometry can be imaged within a rock matrix beyond the current capability of confocal microscopy. The placement of a Deformable Mirror or Spatial Light Modulator for this application, in which scattering and index mismatch are dominant aberrations, is in an optical plane that is conjugate to the pupil plane of the objective lens in the imaging system.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: July 10, 2018
    Assignees: ARAMCO SERVICES COMPANY, SAUDI ARABIAN OIL COMPANY, TRUSTEES OF BOSTON UNIVERSITY
    Inventors: Thomas Bifano, Shannon L. Eichmann, Bennett B. Goldberg, Mazen Kanj, Hari P. Paudel, William Shain
  • Patent number: 9989410
    Abstract: A photo-detector device may include a substrate having a bottom surface. The photo-detector device may further include a photocell secured to the bottom surface of the substrate. The photo-detector device may further include a metallic block having a top portion secured to a bottom surface of the substrate to enclose the photocell, wherein an opening is formed within the metallic block that extends from the top portion of the metallic block to a bottom portion of the metallic block to form an aperture for light to travel through the metallic block to the photocell. The photo-detector device may further include a member insertable into the metallic block to vary an open area of the aperture.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 5, 2018
    Assignee: Heraeus Noblelight America LLC
    Inventors: Keith Andrew Helms, Timothy Allan Dombkowski, James Robert Elliott
  • Patent number: 9810521
    Abstract: A displacement detection apparatus capable of stably and accurately detecting the amount of displacement. The length of a polarization maintaining fiber for transmitting the light from a light source to a displacement detector is set not to be equal to a length obtained by dividing, by the wavelength of the light source, a product of an even integral multiple of a length, which is obtained by multiplying twice the length of a resonator by the refractive index of the resonator, and a beat length obtained by a difference between the propagation constants of two polarization modes. Alternatively, the length of the polarization maintaining fiber is set to be larger than a length, which is obtained by dividing, by the wavelength of the light source, a product of a coherence length and a beat length obtained from a difference between the propagation constants of two polarization modes.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: November 7, 2017
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Akinori Suzuki, Masayuki Niiya, Kenji Matsushita, Terukazu Nishida, Hideaki Tamiya, Kayoko Taniguchi
  • Patent number: 9658149
    Abstract: Optical computing devices containing one or more integrated computational elements may be used to produce two or more detector output signals that are computationally combinable to determine a characteristic of a sample. The devices may comprise a first integrated computational element and a second integrated computational element, each integrated computational element having an optical function associated therewith, and the optical function of the second integrated computational element being at least partially offset in wavelength space relative to that of the first integrated computational element; an optional electromagnetic radiation source; at least one detector configured to receive electromagnetic radiation that has optically interacted with each integrated computational element and produce a first signal and a second signal associated therewith; and a signal processing unit operable for computationally combining the first signal and the second signal to determine a characteristic of a sample.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: May 23, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Robert Freese, Christopher Michael Jones, David Perkins, Michael Simcock, William Soltmann
  • Patent number: 9645450
    Abstract: Exemplary embodiments of the invention relate to an alignment apparatus including a source unit providing an electromagnetic signal, a receiving unit detecting the provided electromagnetic signal, and a polarization element positioned between the source unit and the receiving unit and having a transmissive axis fixed in a predetermined direction. A substrate may be positioned between the source unit and the receiving unit, and may be formed with a polarizer including a plurality of metal lines with a minute linear pattern. The luminance or intensity of the electromagnetic signal may be detected by the receiving unit while rotating the substrate.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: May 9, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hyuk Chang, Hi Kuk Lee, Cha-Dong Kim, Sang Hyun Yun, Jung-In Park, Chang Hoon Kim, Ki Beom Lee
  • Patent number: 9575162
    Abstract: A method for increasing resolution of an image formed of received light from an illuminated spot includes measuring a y vector for measurement kernels A1 to AM, where M is a number of the measurement kernels, measuring the y vector including programming a programmable N-pixel micromirror or mask located in a return path of a received reflected scene spot with a jth measurement kernel Aj of the measurement kernels A1 to AM, measuring y, wherein y is an inner product of a scene reflectivity f(?,?) with the measurement kernel Aj for each range bin ri, wherein ? and ? are azimuth and elevation angles, respectively, repeating programming the programmable N-pixel micromirror or mask and measuring y for each measurement kernel A1 to AM, and forming a reconstructed image using the measured y vector, wherein forming the reconstructed image includes using compressive sensing or Moore-Penrose reconstruction.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: February 21, 2017
    Assignee: HRL Laboratories, LLC
    Inventor: Yuri Owechko
  • Patent number: 9546949
    Abstract: Optical computing devices including a light source that emits electromagnetic radiation into an optical train extending from the light source to a detector, a substance arranged in the optical train and configured to optically interact with the electromagnetic radiation and produce sample interacted radiation, a processor array arranged in the optical train and including a plurality of ICE arranged on a substrate and configured to optically interact with the electromagnetic radiation. The detector receives modified electromagnetic radiation generated through optical interaction of the electromagnetic radiation with the substance and the processor array. A weighting device is coupled to one or more of the ICE to optically apply a weighting factor to the modified electromagnetic radiation prior to being received by the detector, wherein the detector generates an output signal indicative of a characteristic of the substance based on beams of modified electromagnetic radiation.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 17, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Neal G. Skinner
  • Patent number: 9445010
    Abstract: Optical apparatus includes an image sensor and objective optics, which are configured to collect and focus optical radiation over a range of wavelengths along a common optical axis toward a plane of the image sensor. A dispersive element is positioned to spread the optical radiation collected by the objective optics so that different wavelengths in the range are focused along different, respective optical axes toward the plane.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: September 13, 2016
    Assignee: APPLE INC.
    Inventors: Alexander Shpunt, Niv Gilboa, Haim Bezdin
  • Patent number: 9377613
    Abstract: A method and system for spectral demultiplexing of fluorescent species, such as quantum dots, conjugated with a biological tissue. The process of demultiplexing involves a non-liner regression based on curve-fitting of estimated spectra of the quantum dots and confidence intervals describing the parameters of such fitting curve for typical quantum dots.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: June 28, 2016
    Assignee: VENTANA MEDICAL SYSTEMS, INC.
    Inventors: Pascal Bamford, Michael Otter, Ronald T. Kurnik
  • Patent number: 9212948
    Abstract: Techniques for hyperspectral imaging using a spatial light modulator having a plurality of pixels, including encoding electromagnetic radiation incident a first pixel at a first location and a second pixel at a second location into a first modulated signal having a first modulation frequency and a second modulated signal having a second modulation frequency, the first modulation frequency being different than the second modulation frequency. A sum of intensities of at least the first modulated signal and the second modulated signal is measured at a plurality of optical frequencies and a transform is applied to the sum to obtain an intensity of electromagnetic radiation incident each of the first location and the second location for each of the plurality of optical frequencies.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: December 15, 2015
    Assignee: The Trustees Of Columbia University In The City Of New York
    Inventor: Dirk R. Englund
  • Patent number: 9183771
    Abstract: A projector configured to provide higher resolution output without increasing pixel resolution in a light modulator is disclosed. The projector may introduce an optical element between a light modulator and an imaging lens. The optical element may provide pixel sharing of a target image. The pixel sharing may be produced by, for example, making smaller copies of pixels. Selected copies of pixels may be passed to the imaging lens to display an output image with selected areas of higher density pixels.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: November 10, 2015
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Aditi Majumder, Behzad Sajadi, Gopi Meenakshisundaram
  • Patent number: 9182278
    Abstract: Featured is a spectral analysis method and a wide spectral range spectrometer including a source of electromagnetic radiation and an optical subsystem configured to disperse radiation into a plurality of wavelengths. A pixilated light modulator receives the radiation wavelengths and is configured to direct one or more selective wavelengths to a sample.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 10, 2015
    Assignee: SciAps, Inc.
    Inventor: David Day
  • Patent number: 9074990
    Abstract: An exemplary optical computing device includes an electromagnetic radiation source that optically interacts with a sample having a characteristic of interest, a first integrated computational element arranged within a primary channel to optically interact with the electromagnetic radiation source and produce a first modified electromagnetic radiation, wherein the first integrated computational element is configured to be positively or negatively correlated to the characteristic of interest, a second integrated computational element arranged within a reference channel to optically interact with the electromagnetic radiation source and produce a second modified electromagnetic radiation, wherein the second integrated computational element is configured to correlated to the characteristic of interest with an opposite sign relative to the first integrated computational element, and a first detector arranged to generate a first signal from the first modified electromagnetic radiation and a second signal from the s
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 7, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Robert Freese, Christopher Michael Jones, David Perkins, Michael Simcock, William Soltmann
  • Patent number: 8941046
    Abstract: Optical computing devices are disclosed. One exemplary optical computing device includes an electromagnetic radiation source configured to optically interact with a sample and first and second integrated computational elements arranged in primary and reference channels, respectively. The first and second integrated computational elements produce first and second modified electromagnetic radiations, and a detector is arranged to receive the first and second modified electromagnetic radiations and generate an output signal corresponding to the characteristic of the sample.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 27, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Robert Freese, Christopher Michael Jones, David Perkins, Michael Simcock, William Soltmann
  • Patent number: 8928879
    Abstract: A device for detecting gas concentrations includes a movable coded filter. An optical element is positioned to receive gas filtered light and spectrally separate the gas filtered light. A photo detector is positioned to receive the spectrally separated light through slits in the moveable coded filter to provide an AC signal representative of a selected gas.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: January 6, 2015
    Assignee: Honeywell International Inc.
    Inventors: Daniel Youngner, Bernard S. Fritz, Yue Liu, James A. Cox
  • Patent number: 8928880
    Abstract: An apparatus for detecting gas concentrations includes a coded filter to oscillate proximate a resonant frequency. A photo detector is positioned below the coded filter such that the coded filter selectively blocks light that is directed at the photo detector. Optics are positioned to project spectral information on to the coded filter. A processor analyzes a signal received from the photo detector. The processor is adapted to weight a harmonic attic signal.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: January 6, 2015
    Assignee: Honeywell International Inc.
    Inventors: Daniel Youngner, Yue Liu, Lisa Lust
  • Publication number: 20140268132
    Abstract: An optical emission spectroscopic (OES) instrument includes a spectrometer, a processor and an adjustable mask controlled by the processor. The adjustable mask defines a portion of an analytical gap imaged by the spectrometer. The instrument automatically adjusts the size and position of an opening in the mask, so the spectrometer images an optimal portion of plasma formed in the analytical gap, thereby improving signal and noise characteristics of the instrument, without requiring tedious and time-consuming manual adjustment of the mask during manufacture or use.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Inventor: Mark A. HAMILTON
  • Patent number: 8780345
    Abstract: One aspect of the invention provides a spatially-selective disk including a plurality of holes arranged such that a matrix having a plurality of rows, each row having elements corresponding to a fraction of a pixel in a viewing window projected onto the disk that is backed by a hole at a distinct rotational position of the disk, has linearly independent rows. Another aspect of the invention provides a spectrometry device including: a disk having one or more holes; a motor configured to rotate the disk; one or more beam-shaping optics arranged to map one or more spectral components of radiation of interest onto a plurality of locations on the disk; and a receiver positioned to capture the one or more spectral components passing through the one or more holes as the disk is rotated.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: July 15, 2014
    Assignee: The University of Memphis Research Foundation
    Inventors: Orges Furxhi, Eddie L. Jacobs
  • Publication number: 20140104609
    Abstract: An optical emission spectroscopic (OES) instrument includes a spectrometer, a processor and an adjustable mask controlled by the processor. The adjustable mask defines a portion of an analytical gap imaged by the spectrometer. The instrument automatically adjusts the size and position of an opening in the mask, so the spectrometer images an optimal portion of plasma formed in the analytical gap, thereby improving signal and noise characteristics of the instrument, without requiring tedious and time-consuming manual adjustment of the mask during manufacture or use.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Applicant: Thermo Scientific Portable Analytical Instruments
    Inventor: Mark A. HAMILTON
  • Patent number: 8629984
    Abstract: A system and a method for real-time processing and monitoring, the system including a light source to provide an illumination light and a calibration light are provided. The system includes an optical element to separate the illumination light and the calibration light; an optical element to direct the illumination light to a sample; an optical element to direct the calibration light to a first detector and a second detector; an optical element to collect light backscattered from the sample; an optical element to separate light backscattered from the sample into a first scattered light portion and a second scattered light portion; an optical element to direct the first scattered light portion through at least one multivariate optical element to the first detector; and an optical element to direct the second scattered light portion to the second detector.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: January 14, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Robert P. Freese, David L. Perkins
  • Patent number: 8614790
    Abstract: An optical inspection system for inspecting a patterned sample located in an inspection plane includes an illumination unit defining an illumination path, and a light collection unit defining a collection path, each path having a certain angular orientation with respect to the inspection plane. The illumination unit comprises an illumination mask located in a first spectral plane with respect to the inspection plane and the light collection unit comprises a collection mask located in a second spectral plane with respect to the inspection plane being conjugate to the first spectral plane. Arrangements of features of the first and second patterns are selected in accordance with a diffraction response from said patterned sample along a collection channel defined by the angular orientation of the illumination and collection paths.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: December 24, 2013
    Assignee: Applied Materials Israel, Ltd.
    Inventors: Yoav Berlatzky, Ido Kofler, Doron Meshulach, Kobi Barkan
  • Patent number: 8606426
    Abstract: A system includes a displacement sensor, an actuator connected to the displacement sensor, and a feedback unit. The displacement sensor is configured to measure at least one of a relative position and a relative orientation between the displacement sensor and the target object. The feedback unit receives a signal from the displacement sensor related to the measured relative position or relative orientation and controls the actuator to move the displacement sensor on the basis of variations in the received signal arising due to a change in environmental conditions.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: December 10, 2013
    Assignee: Academia Sinica
    Inventors: Ing-Shouh Hwang, En-Te Hwu, Hans Ulrich Danzebrink, Hartmut Illers
  • Patent number: 8599374
    Abstract: A hyperspectral imaging system and a method are described herein for providing a hyperspectral image of an area of a remote object (e.g., scene of interest). In one aspect, the hyperspectral imaging system includes at least one optic, a rotatable disk (which has at least one spiral slit formed therein), a spectrometer, a two-dimensional image sensor, and a controller. In another aspect, the hyperspectral imaging system includes at least one optic, a rotatable disk (which has multiple straight slits formed therein), a spectrometer, a two-dimensional image sensor, and a controller. In yet another aspect, the hyperspectral imaging system includes at least one optic, a rotatable drum (which has a plurality of slits formed on the outer surface thereof and a fold mirror located therein), a spectrometer, a two-dimensional image sensor, and a controller.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 3, 2013
    Assignee: Corning Incorporated
    Inventors: Lovell Elgin Comstock, II, Richard Lynton Wiggins, Kenneth Smith Woodard
  • Patent number: 8553222
    Abstract: The present invention enables snap-shot spectral imaging of a scene at high image generation rates. Light from the scene is processed through an optical system that comprises a coded-aperture. The optical system projects a plurality of images, each characterized by only one of a plurality of spectral components, onto a photodetector array. The plurality of images is interspersed on the photodetector array, but no photodetector receives light characterized by more than one of the plurality of spectral components. As a result, computation of the spatio-spectral datacube that describes the scene is simplified. The present invention, therefore, enables rapid spectral imaging of the scene.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: October 8, 2013
    Assignees: Duke University, Applied Quantum Technologies
    Inventors: David Jones Brady, Scott Thomas McCain, Andrew David Portnoy
  • Patent number: 8527226
    Abstract: An apparatus for modulating an incident beam includes a body that is non-transmissive and rotatable about an axis perpendicular to a surface of the body. The body has a first set of features including transmissive features with respect to the incident beam along a first radial path at a first radial distance from the axis and a second set of features including data storage features along a second radial path at a second radial distance from the axis. The apparatus also includes a reference sensor disposed over a first position along the second radial path. In the apparatus. the radial distances are different and the numbers of transmissive features and data storage features are relatively prime. When the body is rotating, the first set of features modulate the incident beam and the reference sensor generates a reference signal based on the data storage features traversing the first position.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: September 3, 2013
    Assignee: Vanderbilt University
    Inventor: Jesse Shaver
  • Publication number: 20130083315
    Abstract: Devices, systems and methods facilitate analyzing, identifying and sorting particles in fluids, including cytometry devices and techniques. The described techniques can be used in a variety of applications such as in chemical or biological testing and diagnostic measurements. One exemplary flow cytometry device includes a channel that is capable of conducting a fluid containing at least one particle and also capable of allowing light be transmitted to and from the channel. The flow cytometry device also includes a lens that is positioned between the channel and a color filter. The lens directs at least a portion of light transmitted from the channel to the color filter. The color filter includes a plurality of zones, where each zone is adapted to allow transmission of only a particular spectral range of light. The flow cytometry device further includes a detector configured to receive the light that is transmitted through the color filter.
    Type: Application
    Filed: August 23, 2012
    Publication date: April 4, 2013
    Inventors: Yu-Hwa Lo, Sung Hwan Cho, Jose Morachis, Will Alaynick, Kendall Chuang, Nam Kim
  • Publication number: 20130027700
    Abstract: An apparatus for detecting gas concentrations includes a coded filter to oscillate proximate a resonant frequency. A photo detector is positioned below the coded filter such that the coded filter selectively blocks light that is directed at the photo detector. Optics are positioned to project spectral information on to the coded filter. A processor analyzes a signal received from the photo detector. The processor is adapted to weight a harmonic attic signal.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Applicant: Honeywell International Inc.
    Inventors: Daniel Youngner, Yue Liu, Lisa Lust
  • Patent number: 8358418
    Abstract: A method of real-time processing and monitoring comprises the steps of blending a material of interest (e.g., an active pharmaceutical material), with a secondary material, (e.g., an excipient), illuminating the blended materials with light, reflecting light carrying information about the blended materials through at least one multivariate optical element (148) and detecting said light with a first detector (152), detecting a deflected portion of the information carrying light with a second detector (156), and determining in real-time at least one selected property of the blended materials based on the detector outputs.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: January 22, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael L. Myrick, Robert P. Freese, Ryan J. Priore, John C. Blackburn, Jonathan H. James, David L. Perkins
  • Publication number: 20120320376
    Abstract: Spectrally filtering at least one input beam includes dispersing spectral components of at least one input beam at different respective angles in a spectral plane; changing at least some of the angles of the propagation axes of the dispersed spectral components so that the maximum angular separation among the propagation axes of the spectral components changes; receiving a plurality of the dispersed spectral components incident on a reflective surface at a location at which the central rays of each of the spectral components are incident at different points on the reflective surface; and tilting the reflective surface to select at least one and fewer than all of the received spectral components to be directed to a selected output path.
    Type: Application
    Filed: July 16, 2012
    Publication date: December 20, 2012
    Inventors: Christopher S. Koeppen, Steven E. Parks
  • Publication number: 20120307239
    Abstract: A device for detecting gas concentrations includes a movable coded filter. An optical element is positioned to receive gas filtered light and spectrally separate the gas filtered light. A photo detector is positioned to receive the spectrally separated light through slits in the moveable coded filter to provide an AC signal representative of a selected gas.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 6, 2012
    Applicant: Honeywell International Inc.
    Inventors: Daniel Youngner, Bernard S. Fritz, Yue Liu, James A. Cox
  • Patent number: 8248601
    Abstract: An optical mask positioned on a scintillator array. The optical mask includes a reflective layer. One or more windows can be positioned on the surface of optical mask.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: August 21, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: James L. Corbeil, Nan Zhang
  • Patent number: 8229294
    Abstract: A camera includes a lens and a sensor. A dynamic mask is arranged at an aperture plane between the lens and the sensor, and a static mask is arranged immediately adjacent to the sensor. Angular, temporal or spatial variations in light rays acquired of a scene by the sensor are mapped to individual pixels of the sensor.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: July 24, 2012
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Amit Kumar Agrawal, Ashok Veeraraghavan
  • Publication number: 20120105844
    Abstract: The present invention enables snap-shot spectral imaging of a scene at high image generation rates. Light from the scene is processed through an optical system that comprises a coded-aperture. The optical system projects a plurality of images, each characterized by only one of a plurality of spectral components, onto a photodetector array. The plurality of images is interspersed on the photodetector array, but no photodetector receives light characterized by more than one of the plurality of spectral components. As a result, computation of the spatio-spectral datacube that describes the scene is simplified. The present invention, therefore, enables rapid spectral imaging of the scene.
    Type: Application
    Filed: December 30, 2011
    Publication date: May 3, 2012
    Applicant: APPLIED QUANTUM TECHNOLOGIES, INC.
    Inventors: David Jones Brady, Scott Thomas McCain, Andrew David Portnoy
  • Patent number: 8144321
    Abstract: According to one embodiment of the present invention, a system for encoding an optical spectrum includes a dispersive element, a digital micromirror device (DMD) array, a detector, and a controller. The dispersive element receives light from a source and disperses the light to yield light components of different wavelengths. The digital micromirror device (DMD) array has micromirrors that modulate the light to encode an optical spectrum of the light. The detector detects the light that has been modulated. The controller generates an intensity versus time waveform representing the optical spectrum of the detected light.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: March 27, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Walter M. Duncan, James N. Malina, Rajeev Ramanath
  • Patent number: 8140272
    Abstract: Systems and methods for unmixing spectroscopic data using nonnegative matrix factorization during spectrographic data processing are provided according to various embodiments. In an embodiment, a method of processing spectrographic data may include receiving optical absorbance data associated with a sample and iteratively computing values for component spectra using nonnegative matrix factorization. The values for component spectra may be iteratively computed until optical absorbance data is approximately equal to a Hadamard product of a pathlength matrix and a matrix product of a concentration matrix and a component spectra matrix. The method may also include iteratively computing values for pathlength using nonnegative matrix factorization, in which pathlength values may be iteratively computed until optical absorbance data is approximately equal to a Hadamard product of the pathlength matrix and the matrix product of the concentration matrix and the component spectra matrix.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: March 20, 2012
    Assignee: Nellcor Puritan Bennett LLC
    Inventor: Steven E. Pav
  • Patent number: 8073268
    Abstract: Methods for coded aperture imaging, and processing the data from coded aperture imaging are taught. Several snapshots of an image are acquired, each using a different coded aperture array. The several snapshots are combined together with appropriate weightings to form a single equivalent frame as are the aperture functions for the coded aperture arrays used. Combining several frames of data can improve the signal to noise ratio of the decode image and increase the resolution of the image. Preferably a balanced weighting system is used and image reconstruction is performed by inverting the covariance matrix formed by the covariance of the signals from a number of estimated trial points. Using a balanced weighting system reduces the covariance matrix to a diagonal or near diagonal matrix with a corresponding reduction in computational load. The techniques also reduces additive noise.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: December 6, 2011
    Assignee: Qinetiq Limited
    Inventor: Philip Edward Haskell
  • Patent number: 8068680
    Abstract: The present invention relates to processing of coded aperture images. Multiple frames of data acquired by the coded aperture imaging system, each with a different coded aperture array, are processed to form an image. The processing incorporates the constraints that the image solution must be positive and that the solution should be zero outside an expected image region. In one embodiment image enhancement may involve dividing the processed image into image regions having a spatially invariant point spread function and solving an inverse problem for each image region to reduce image blurring.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: November 29, 2011
    Assignee: Qinetiq Limited
    Inventors: Christopher William Slinger, Geoffrey Derek De Villiers, Douglas Alan Payne
  • Patent number: 7944557
    Abstract: Method and apparatus for analyzing radiation using analyzers and encoders employing the spatial modulation of radiation dispersed by wavelength or imaged along a line.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: May 17, 2011
    Assignee: Guidedwave, Inc
    Inventor: Thomas W. Hagler
  • Patent number: 7890280
    Abstract: A method and system for determining a physical property as a function of position. A data series including data point from one or more channels is obtained by frequency modulation continuous wave. A number of data points correspond to Nda different values of frequency of modulation. One or more processing steps are performed including at least part of said primary data series to obtain at least one secondary data series comprising N (N>Nda) data points from the values of frequency of modulation. The secondary data series from frequency domain is transformed to obtain at least one back scattering curve in space domain, and optionally the back scattering curve(s) to one or more physical properties as a function of position.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: February 15, 2011
    Assignee: LIOS Technology GmbH
    Inventor: Martin Fomme
  • Publication number: 20100321686
    Abstract: The disclosure provides a device for optical spectrometry, wherein the reference beam and the measuring beam between the deflector and the detector input, in particular between the deflector output and the detector or between a device connecting the optical paths and the detector exhibit the same (the identical) etendue and the same (the identical) optical axis.
    Type: Application
    Filed: June 7, 2010
    Publication date: December 23, 2010
    Applicant: CARL ZEISS MICROIMAGING GMBH
    Inventors: Nico Correns, Felix Kerstan, Doris Jochmann, Werner Hoyme, Hans-Juergen Dobschal, Marcel Seeber, Lutz Freytag
  • Publication number: 20100284003
    Abstract: An optical emission spectroscopic (OES) instrument includes a spectrometer, a processor and an adjustable mask controlled by the processor. The adjustable mask defines a portion of an analytical gap imaged by the spectrometer. The instrument automatically adjusts the size and position of an opening in the mask, so the spectrometer images an optimal portion of plasma formed in the analytical gap, thereby improving signal and noise characteristics of the instrument, without requiring tedious and time-consuming manual adjustment of the mask during manufacture or use.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 11, 2010
    Inventor: Mark A. Hamilton
  • Publication number: 20100253941
    Abstract: The present invention enables snap-shot spectral imaging of a scene at high image generation rates. Light from the scene is processed through an optical system that comprises a coded-aperture. The optical system projects a plurality of images, each characterized by only one of a plurality of spectral components, onto a photodetector array. The plurality of images is interspersed on the photodetector array, but no photodetector receives light characterized by more than one of the plurality of spectral components. As a result, computation of the spatio-spectral datacube that describes the scene is simplified. The present invention, therefore, enables rapid spectral imaging of the scene.
    Type: Application
    Filed: April 10, 2009
    Publication date: October 7, 2010
    Applicants: APPLIED QUANTUM TECHNOLOGIES, INC., DUKE UNIVERSITY
    Inventors: David Jones Brady, Scott Thomas McCain, Andrew David Portnoy
  • Patent number: 7773218
    Abstract: Embodiments of the present invention relate to systems and methods for spectral imaging. Electromagnetic energy emanating from an object is passed through a first dispersive element, a coded aperture, and a second dispersive element to a detector plane. A wavelength-dependent shift is created by the first dispersive element. The coded aperture modulates the image emanating from the first dispersive element. The wavelength-dependent shift is removed from the modulated image by the second dispersive element producing a wavelength-independent image measured by the detector. A spectral image of the object is calculated from the measured image, a wavelength-dependent shift of the first dispersive element, the code of the coded aperture, and a wavelength dependent shift of the second dispersive element. A spectral image can be calculated from measurements obtained in a single time step and from a number of measurements that is less than the number of elements in the spectral image.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: August 10, 2010
    Assignee: Duke University
    Inventors: David J. Brady, Michael E. Gehm
  • Publication number: 20100118300
    Abstract: A cylindrical illumination confocal spectroscopy system has a fluidic device having a fluid channel defined therein, an objective lens unit arranged proximate the fluidic device, an illumination system in optical communication with the objective lens unit to provide light to illuminate a sample through the objective lens unit, and a detection system in optical communication with the objective lens unit to receive at least a portion of light that passes through the objective lens unit from the sample. The illumination system includes a beam-shaping lens unit constructed and arranged to provide a substantially planar illumination beam that subtends across, and is longer than, a lateral dimension of the fluid channel, the substantially planar illumination beam having a diffraction limited thickness in a direction substantially orthogonal to the lateral dimension of the fluid channel.
    Type: Application
    Filed: November 4, 2009
    Publication date: May 13, 2010
    Applicant: The Johns Hopkins University
    Inventors: Tza-Huei Wang, Kelvin J. Liu
  • Publication number: 20100103412
    Abstract: Since a spectroscopic module (1) has a plate-shaped body section (2), the spectroscopic module can be reduced in size by reducing the thickness of the body section (2). Moreover, since the body section (2) is plate-shaped, the spectroscopic module (1) can be manufactured, for example, by using a wafer process. More specifically, by providing lens sections (3), diffraction layers (4), reflection layers (6) and light detecting elements (7) in a matrix form on a glass wafer which becomes many body sections (2) and dicing the glass wafer, many spectroscopic modules (1) can be manufactured. This enables easy mass production of spectroscopic modules (1).
    Type: Application
    Filed: June 5, 2008
    Publication date: April 29, 2010
    Applicant: Hamamatsu Photonics K.K.
    Inventors: Katsumi Shibayama, Helmut Teichmann, Takafumi Yokino, Tomofumi Suzuki, Dietmar Hiller, Ulrich Starker