Using Plural Photocells Patents (Class 356/343)
  • Patent number: 11385177
    Abstract: A sensor analysis computer device for analyzing particulate matter is provided. The computer device includes at least one memory and at least one processor in communication with the at least one memory. The computer device is in communication with a sensor configured to measure particulate matter. The at least one processor is programmed to store a plurality of parameter data for the sensor including a calibration factor, receive a plurality of sensor data from the sensor, determine a present calibration factor based on the plurality of parameter data and the plurality of sensor data, determine an updated calibration factor for the sensor based on the present calibration factor and the plurality of parameter data, and transmit the updated calibration factor to the sensor, wherein the sensor is configured to adjust subsequent sensor data based on the updated calibration factor.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: July 12, 2022
    Assignee: Washington University
    Inventors: Pratim Biswas, Jiayu Li
  • Patent number: 11338578
    Abstract: An inspection module is disclosed for inspecting a droplet from an ink jet head. The inspection module includes a sensor located under the ink jet head and measuring a distance between the droplet and the sensor in real time; a variable lens changing an operating distance based on the measured distance of the sensor; and a camera for capturing an image of the droplet. The inspection module further includes a droplet inspecting part inspecting the droplet image captured by the camera.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: May 24, 2022
    Assignee: SEMES CO., LTD.
    Inventors: Kwangsup Kim, Dongok Ahn, Junho Oh, Ji Hoon Yoo, Myeong Jun Lim
  • Patent number: 11079277
    Abstract: The present invention provides a spectral imaging apparatus and method featuring in that spectra are obtained from the captured photographs for composition analysis. In addition, the environment can be protected by using to the spectral imaging device and method. Furthermore, a true color photo can also be obtained.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: August 3, 2021
    Assignee: National Taiwan University
    Inventor: Ching-Fuh Lin
  • Patent number: 10948352
    Abstract: In one embodiment, a diagnostic system for biological samples is disclosed. The diagnostic system includes a diagnostic instrument, and a portable electronic device. The diagnostic instrument has a reference color bar and a plurality of chemical test pads to receive a biological sample. The portable electronic device includes a digital camera to capture a digital image of the diagnostic instrument in uncontrolled lightning environments, a sensor to capture illuminance of a surface of the diagnostic instrument, a processor coupled to the digital camera and sensor to receive the digital image and the illuminance, and a storage device coupled to the processor. The storage device stores instructions for execution by the processor to process the digital image and the illuminance, to normalize colors of the plurality of chemical test pads and determine diagnostic test results in response to quantification of color changes in the chemical test pads.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: March 16, 2021
    Assignee: HEALTHY.IO LTD.
    Inventor: Bernard Burg
  • Patent number: 10859371
    Abstract: A substrate inspection apparatus is disclosed. The substrate inspection apparatus includes: a first light source configured to radiate an ultraviolet light onto a coated film of a substrate, the coated film being mixed with fluorescent pigments; a first light detector configured to capture fluorescence generated from the coated film onto which the ultraviolet light is radiated, and to obtain a two-dimensional (2D) image of the substrate; a processor configured to derive one region among a plurality of regions of the substrate based on the 2D image; a second light source configured to radiate a laser light onto the one region; and a second light detector configured to obtain optical interference data generated from the one region by the laser light, wherein the processor is configured to derive a thickness of the coated film of the one region based on the optical interference data.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: December 8, 2020
    Assignee: KOH YOUNG TECHNOLOGY INC.
    Inventors: Young Joo Hong, Deok Hwa Hong, Min Kyu Kim, Jeong Hun Choi
  • Patent number: 10823548
    Abstract: A substrate inspection apparatus is disclosed. The substrate inspection apparatus includes: a first light source configured to radiate an ultraviolet light onto a coated film of a substrate, the coated film being mixed with fluorescent pigments; a first light detector configured to capture fluorescence generated from the coated film onto which the ultraviolet light is radiated, and to obtain a two-dimensional (2D) image of the substrate; a processor configured to derive one region among a plurality of regions of the substrate based on the 2D image; a second light source configured to radiate a laser light onto the one region; and a second light detector configured to obtain optical interference data generated from the one region by the laser light, wherein the processor is configured to derive a thickness of the coated film of the one region based on the optical interference data.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 3, 2020
    Assignee: KOH YOUNG TECHNOLOGY INC.
    Inventors: Young Joo Hong, Deok Hwa Hong, Min Kyu Kim, Jeong Hun Choi
  • Patent number: 10786186
    Abstract: Disclosed is a non-invasive biometric sensor including a light source, an organic photodetector, and a detector. The light source is configured to irradiate light in a desired (and/or alternatively predetermined) wavelength range to a body part. The organic photodetector is configured to sense the light in the desired (and/or alternatively predetermined) wavelength range in response to the light in the desired (and/or alternatively predetermined) range being transmitted through the body part. The detector is configured to determine biomedical information of the body part based on an amount of the light sensed by the organic photodetector.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: September 29, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Joon Heo, Kyung Bae Park, Takkyun Ro, Kwang Hee Lee, Dongseon Lee, Yong Wan Jin, Moon Gyu Han
  • Patent number: 10585047
    Abstract: The invention provides a method and a system of checking a procedure for the optical inspection of glass containers (12), characterized by a procedure for the optical recognition of a control mark (42) of a control container having optical properties of transformation spectral such that: the transformation of the spectral intensity distribution between the incident (LRi) and return (LRr) recognition lights, by the mark (42), is different from that caused by interaction with a marking portion free of any mark (46); the transformation of the spectral intensity distribution between the incident (LIi) and return (LIr) inspection lights, by the mark, is not different, inside at least one useful portion of the inspection spectral band (BSI), from that caused by interaction with a marking portion free of any mark (46).
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: March 10, 2020
    Assignee: TIAMA
    Inventor: Bernard Lopez
  • Patent number: 10551311
    Abstract: A method of determining an absorption or turbidity coefficient of a liquid involves storing a set of data describing a plurality of droplets or other discrete bodies of liquid of different shapes, sizes and absorption or turbidity coefficients. Each body is captured as a combination of a measurable transmission parameter obtained by modelling the interaction of light with a drop, and of one or more dimensional measurements selected from lengths, areas and volumes. The absorption or turbidity coefficient is indicated also. By measuring the transmission of light through a real body of liquid, and making measurements allowing the droplet to be specified, the absorption or turbidity coefficient associated with a droplet giving rise to the same behaviour in transmitting light can be identified from the data set.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: February 4, 2020
    Inventors: Stephen Smith, Norman McMillan, Martina O'Neill, Sven Riedel, John Hammond
  • Patent number: 10473579
    Abstract: An inspection apparatus includes a light source. A first measurement unit is configured to receive light from the light source and direct it to a first measurement object. A second measurement unit is configured to receive the light from the light source and direct it to a second measurement object. An inspection unit is configured to receive a first optical signal provided from the first measurement unit and inspect the first measurement object using the first optical signal, and to receive a second optical signal provided from the second measurement unit and inspect the second measurement object using the second optical signal. A measurement position selection unit is configured to alternately enable the inspection of the two measurement units by adjusting an angle of a reflection mirror.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: November 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-Heung Ahn, Young Duk Kim, Sang Gil Park, Jun Bum Park, Yoichiro Iwa, Byeong Hwan Jeon
  • Patent number: 10434790
    Abstract: Apparatus to detect droplets and methods for detecting droplets are described. The apparatus comprise a light emitter and a light detector. The light emitter is to emit light along an optical axis, the light having a spatial intensity distribution profile with a peak that is non-coincident with the optical axis. The light detector is located relative to the light emitter such that, in use, the peak of the spatial intensity distribution profile is incident on the light detector.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 8, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jose Francisco Bravo de Vega, Francisco Gomez, Jordi Bas
  • Patent number: 10295468
    Abstract: The present invention relates to a fluorescent image system capable of generating white light by mixing three monochromatic lights, i.e. red, green and blue monochromatic lights, having a narrow band wavelength, instead of white light of constant wavelength; providing a fluorescent image-use light source that generates a mixed light by adding a fluorescent excitation light source suitable for fluorescent substances; and photographing a general image and fluorescent image simultaneously with the light sources.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 21, 2019
    Assignee: NATIONAL CANCER CENTER
    Inventors: Seok Ki Kim, Sung Chun Kim, Sun Up Park
  • Patent number: 10241020
    Abstract: Atmospheric particle detectors having a hybrid measurement cavity and light baffle are provided. In one aspect, an atmospheric particle detector includes: an optical measurement cavity; a light baffle attached to the optical measurement cavity, wherein the light baffle is configured to i) permit unobstructed airflow into the optical measurement cavity and ii) block ambient light from entering the optical measurement cavity; a photodetector on a first side of the optical measurement cavity; a retro reflector on a second side of the optical measurement cavity opposite the photodetector, and a light source configured to produce a light beam that passes through the optical measurement cavity without illuminating the photodetector. A method for particle detection using the atmospheric particle detector is also provided.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: March 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Josephine B. Chang, Hendrik F. Hamann, Ramachandran Muralidhar, Theodore G. van Kessel, Jun Song Wang
  • Patent number: 10234386
    Abstract: A nephelometer for determining the turbidity of a body of fluid in which a light beam is directed as an angled beam through the body and two light detectors measure the intensity of light scatter at two points in the beam. The two measurements are divided and scaled, and then the result is logarithmically amplified and displayed as the turbidity.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: March 19, 2019
    Inventors: Hannu Harjunmaa, Enni Harjunmaa
  • Patent number: 10091491
    Abstract: A depth image generation method is provided. The depth image generation method may include emitting light of different modulation frequencies to an object; detecting the light of the different modulation frequencies reflected from the object; and generating a depth image related to a distance to the object using the light of the different modulation frequencies.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: October 2, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Ouk Choi
  • Patent number: 10060846
    Abstract: Aspects and embodiments of the instant disclosure provide a particle and/or intracellular organelle alignment agent for a particle analyzer used to analyze particles contained in a sample. An exemplary particle and/or intracellular organelle alignment agent includes an aqueous solution, a viscosity modifier, and/or a buffer. Embodiments also encompass systems, compositions, and methods for analyzing a sample containing particles. Parrticles such as blood cells can be categorized and counted by a digital image processor. A digital microscope camera can be directed, for example using certain focusing techniques, into a flowcell defining a symmetrically narrowing flowpath in which the sample stream flows in a ribbon flattened by flow and viscosity parameters between layers of sheath fluid. Blood cell images can be collected and analyzed using dynamic range extension processes and systems.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: August 28, 2018
    Assignee: Iris International, Inc.
    Inventors: Bart J. Wanders, Gregory A. Farrell, Thomas H. Adams, Warren Groner, Xiaodong Zhao, Brett Jordan, Jack Cremins, Carol Quon
  • Patent number: 10049467
    Abstract: A medical image reconstruction system and method for correcting a CT image such that the CT image is located at the center of a three-dimensional (3D) space in order to overcome an error that would otherwise be formed due to an inaccurate position of a patient during Obtaining CT images. After the 3D spatial positions of a 3D medical image are corrected using 3D medical image data, a trajectory of a dental arch is detected. A two-dimensional (2D) medical image is created from the 3D medical image through automatic reconstruction on the basis of the detected trajectory of the dental arch.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: August 14, 2018
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Se Yeol Im, Tae Woo Kim, Dong Wan Seo, Sung Il Choi, Tae Hee Han
  • Patent number: 9933350
    Abstract: Atmospheric particle detectors having a hybrid measurement cavity and light baffle are provided. In one aspect, an atmospheric particle detector includes: an optical measurement cavity; a light baffle attached to the optical measurement cavity, wherein the light baffle is configured to i) permit unobstructed airflow into the optical measurement cavity and ii) block ambient light from entering the optical measurement cavity; a photodetector on a first side of the optical measurement cavity; a retro reflector on a second side of the optical measurement cavity opposite the photodetector, and a light source configured to produce a light beam that passes through the optical measurement cavity without illuminating the photodetector. A method for particle detection using the atmospheric particle detector is also provided.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: April 3, 2018
    Assignee: International Business Machines Corporation
    Inventors: Josephine B. Chang, Hendrik F. Hamann, Ramachandran Muralidhar, Theodore G. van Kessel, Jun Song Wang
  • Patent number: 9863811
    Abstract: In one embodiment, a diagnostic system for biological samples is disclosed. The diagnostic system includes a diagnostic instrument, and a portable electronic device. The diagnostic instrument has a reference color bar and a plurality of chemical test pads to receive a biological sample. The portable electronic device includes a digital camera to capture a digital image of the diagnostic instrument in uncontrolled lightning environments, a sensor to capture illuminance of a surface of the diagnostic instrument, a processor coupled to the digital camera and sensor to receive the digital image and the illuminance, and a storage device coupled to the processor. The storage device stores instructions for execution by the processor to process the digital image and the illuminance, to normalize colors of the plurality of chemical test pads and determine diagnostic test results in response to quantification of color changes in the chemical test pads.
    Type: Grant
    Filed: August 15, 2015
    Date of Patent: January 9, 2018
    Assignee: SCANADU INCORPORATED
    Inventor: Bernard Burg
  • Patent number: 9750413
    Abstract: Diffuse optical tomography systems and methods are described herein. In a general embodiment, the diffuse optical tomography system comprises a plurality of sensor heads, the plurality of sensor heads comprising respective optical emitter systems and respective sensor systems. A sensor head in the plurality of sensors heads is caused to act as an illuminator, such that its optical emitter system transmits a transillumination beam towards a portion of a sample. Other sensor heads in the plurality of sensor heads act as observers, detecting portions of the transillumination beam that radiate from the sample in the fields of view of the respective sensory systems of the other sensor heads. Thus, sensor heads in the plurality of sensors heads generate sensor data in parallel.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: September 5, 2017
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: John V. Sandusky, Todd A. Pitts
  • Patent number: 9702806
    Abstract: Aspects and embodiments of the instant disclosure provide a particle and/or intracellular organelle alignment agent for a particle analyzer used to analyze particles contained in a sample. An exemplary particle and/or intracellular organelle alignment agent includes an aqueous solution, a viscosity modifier, and/or a buffer. Embodiments also encompass systems, compositions, and methods for analyzing a sample containing particles. Particles such as blood cells can be categorized and counted by a digital image processor. A digital microscope camera can be directed, for example using certain focusing techniques, into a flowcell defining a symmetrically narrowing flowpath in which the sample stream flows in a ribbon flattened by flow and viscosity parameters between layers of sheath fluid. Blood cell images can be collected and analyzed using dynamic range extension processes and systems.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: July 11, 2017
    Assignee: Iris International, Inc.
    Inventors: Bart J. Wanders, Gregory A. Farrell, Thomas H. Adams, Warren Groner, Xiaodong Zhao, Brett Jordan, Jack Cremins, Carol Quon
  • Patent number: 9655193
    Abstract: Disclosed are methods and apparatus for lighting control. Reduced intensity light output is provided from one or more light sources (100, 300, 400) based on user proximity. Providing reduced intensity light output from the light sources based on user proximity may facilitate user interaction with a user interface (140, 340, 440) that enables control of the light sources and/or additional light sources. For example, the reduced intensity light output may make viewing of and/or interaction with the user interface more pleasant that non-reduced intensity light output.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: May 16, 2017
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Bram Knaapen, Tim Dekker
  • Patent number: 9625371
    Abstract: Spectral information may be employed in process control and/or quality control of goods and articles. Spectral information may be employed in process control and/or quality control of media, for example financial instruments, identity documents, legal documents, medical documents, financial transaction cards, and/or other media, fluids for example lubricants, fuels, coolants, or other materials that flow, and in machinery, for example vehicles, motors, generators, compressors, presses, drills and/or supply systems. Spectral information may be employed in identifying biological tissue and/or facilitating diagnosis based on biological tissue.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: April 18, 2017
    Assignee: Visulant, Inc.
    Inventors: Thomas A. Furness, III, Brian T. Schowengerdt, Ross D. Melville, Nicholas E. Walker, Bradley E. Sparks
  • Patent number: 9581546
    Abstract: Radiation is irradiated by an irradiation device at a pre-set angle of incidence with respect to the surface onto the surface to be investigated, and the radiation scattered and/or reflected by this surface arrives at a radiation detector device arranged at a pre-set detection angle with respect to the surface and having an image-recording unit which records black-and-white images, wherein this radiation detector device permits a spatially resolved detection of the radiation reaching it. The irradiation device directs radiation in a first wavelength range onto the surface and the image-recording unit records a first spatially resolved image of this radiation scattered and/or reflected from the surface and the irradiation device directs radiation in a second wavelength range onto the surface and the image-recording unit records a second spatially resolved image of this radiation scattered and/or reflected from the surface.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: February 28, 2017
    Assignee: BYK-GARDNER GMBH
    Inventors: Peter Schwarz, Uwe Sperling
  • Patent number: 9417176
    Abstract: A laser beam (4) is guided onto or through a sample (1) which while exposed to the laser is scanned by means of a digital scanner (2). The apparatus for performing this method comprises a laser light source (3) and a digital scanner (2).
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: August 16, 2016
    Inventor: Tudor Arvinte
  • Patent number: 9377481
    Abstract: Methods, detectors and systems detect particles and/or measure particle properties.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: June 28, 2016
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Paul S Greenberg, David G Fischer
  • Patent number: 9228878
    Abstract: This disclosure describes systems, methods, and apparatus for remotely monitoring an elevation, or change in elevation, of a fluid surface, such as that of molten sapphire. The remote monitoring can be performed by measuring positions of a pair of reflected laser beams off the fluid surface as detected on an imaging sensor. As the surface elevation falls, the positions of the pair of reflected laser beams move relative to each other, and this positional change can be converted into a change in the fluid surface elevation.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: January 5, 2016
    Assignee: Advanced Energy Industries, Inc.
    Inventors: Thomas Haw, Gary Kercheck
  • Patent number: 9134230
    Abstract: A microbial detection apparatus is provided. The apparatus includes a parabolic reflector. A light source is configured to direct a beam of light toward the focal point of the parabolic reflector. A fluid flow tube passes through the focal point of the parabolic reflector, such that the light beam path and the flow tube intersect at the focal point of the parabola. The fluid flow tube is configured to contain a flow of fluid. A first detector is included for detecting fluorescence light emitted from microbes within the fluid passing through the flow tube. A second detector is included for detecting Mie scattered light from particles within the fluid passing through the flow tube.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: September 15, 2015
    Assignee: INSTANT BIOSCAN, LLC
    Inventor: Jianping Jiang
  • Patent number: 8994940
    Abstract: Disclosed is a fine particle measurement apparatus including a light condensing unit that condenses irradiated light irradiated to a sample flow where fine particles pass through and directly propagates the light without scattering, and scattered light scattered by the fine particles to an optical receiver divided into a plurality of regions; a position controller that controls the relative positions of members of an optical path; and a control unit that detects positions of condensing spots of the irradiated light and the scattered light based on signal intensities of each region of the optical receiver, and controls the position controller such that the positions of the condensing spots of the irradiated light and the scattered light match with each other.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: March 31, 2015
    Assignee: Sony Corporation
    Inventors: Suguru Dowaki, Shingo Imanishi, Gakuji Hashimoto, Shunpei Suzuki
  • Patent number: 8994942
    Abstract: An interference object is identified in a scatter volume of an optical fire detector, which operates according to the scattered light principle. To achieve a higher level of interference protection using a simple structure in a compact fire detector, a common scatter volume is used instead of separate scatter volumes.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: March 31, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Walter Vollenweider
  • Publication number: 20150077737
    Abstract: The device described herein monitors air quality continuously using a plurality of sensors. The device continuously records the sensor measurements and makes the measurements available to a user though a server based platform. The device further analyzes the sensor data to detect hazards and uses the plurality of sensor measurements to further characterize the hazards and to decrease instances of false alarms.
    Type: Application
    Filed: August 8, 2014
    Publication date: March 19, 2015
    Inventors: Mark Belinsky, Justin Alvey
  • Publication number: 20150056710
    Abstract: Simultaneous Multiple Sample Light Scattering systems and methods can be used to for polymer stability testing and for applying stressors to polymer or colloid solutions including heat stress, ultrasound, freeze/thaw cycles, shear stress and exposure to different substances and surfaces. among others, that create a polymer stress response used to characterize the polymer solution and stability.
    Type: Application
    Filed: August 20, 2014
    Publication date: February 26, 2015
    Applicants: ADVANCED POLYMER MONITORING TECHNOLOGIES, INC., THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
    Inventors: Wayne Frederick Reed, Michael Felix Drenski, Alex Wayne Reed
  • Patent number: 8958067
    Abstract: A light scattering particle counter that improves the signal-to-noise ratio by attenuating the high frequency noise component while suppressing the attenuation of the signal component by irradiating a sample fluid with a laser beam La to form a particle detection area, detecting a particle with a multi-channel light detecting element that receives scattered light Ls from a particle passing through the particle detection area, and with low pass filters having time constants ?c, ?m, ?e that are set to depend on beam diameter of the laser beam La and flow velocity of the fluid which flows through each divided area, to count particles in the sample fluid.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: February 17, 2015
    Assignee: Rion Co., Ltd.
    Inventors: Masaki Shimmura, Takehiro Imai, Takuya Tabuchi
  • Patent number: 8958066
    Abstract: There is provided an optical analysis technique enabling identification of a kind of light-emitting particle corresponding to a signal on a time series light intensity data or identification of a signal corresponding to light-emitting particles other than a particle to be observed in an optical measurement using a confocal microscope or a multiphoton microscope. The inventive optical analysis technique measures simultaneously and separately intensities of lights of two or more wavelength bands from a light detection region in a sample solution containing light-emitting particles of two or more kinds to generate time series light intensity data of the respective wavelength bands; detects signals simultaneously generated on the time series light intensity data of at least two wavelength bands; and identifies the simultaneously generated signals as signals of a light-emitting particle of at least one specific kind.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: February 17, 2015
    Assignee: Olympus Corporation
    Inventors: Takuya Hanashi, Tetsuya Tanabe, Mitsushiro Yamaguchi, Hidetaka Nakata
  • Patent number: 8947662
    Abstract: This invention, methods and apparatus for biomedical agent multi-dimension measuring and analysis, provide the multi-dimension measuring of the biomedical agents, cells, molecules, any and all explosive and hazardous agents, aerosol, airborne particles, liquid/fluid contaminations/particles, gas particles, etc. in order to recognize the multi-dimension size of the particles, select and sort them by their multi-dimension measurements, and count the particles in each sorted group. An improved apparatus for biomedical agent multi-dimension measuring and analysis comprises at least two light (laser) beam sources and at least two light detection means respectively located in the chamber. Also, the improved apparatus includes the amplifying, processing and control means providing distinguish and imaging of the particles/biomedical agents by their multi-dimensions, thereby, providing more precise agent grouping for analysis and counting.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: February 3, 2015
    Inventors: Ann Rachel Yufa, Aleksandr Leybovich Yufa
  • Patent number: 8941830
    Abstract: Systems and methods are described for measuring a tissue parameter such as % StO2 in a tissue sample. One such method includes receiving first and second scattered light intensity signals at unique locations on a selected region of tissue from light injected into the region of tissue from a light source to identify a measured light attenuation data value. An electronic data store can be accessed that includes simulated light attenuation data determined from a mathematical tissue model at discrete points over a range of two or more tissue parameters, where the simulated light attenuation data are a function of one or more temperature-dependent light source spectra. The tissue parameter in the tissue sample can be determined by selecting a closest match between the measured light attenuation data and the simulated light attenuation data. An electronic signal representative of the determined tissue parameter can be sent to an output register.
    Type: Grant
    Filed: March 25, 2012
    Date of Patent: January 27, 2015
    Assignee: Hutchinson Technology Incorporated
    Inventor: Roger Schmitz
  • Publication number: 20140362377
    Abstract: A hemispherical scanning optical scatterometer and method for its use for measuring scattered radiation, with a reflected scatter measurement laser, and/or a transmitted scatter measurement laser, an array of optical detectors, a computer controlled system to rotate the array of optical detectors, an electronic system, a computer interface and a computer for processing the signal.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 11, 2014
    Applicant: ScatterMaster LLC
    Inventors: Eric Hegstrom, John Clyde Stover
  • Patent number: 8908178
    Abstract: A method involves obtaining a first beam image on a focal plane of a first camera and a second beam image on a focal plane of a second camera from light scattered by ambient atmospheric aerosols in the path of a laser beam. First and second projected beam images are formed, representing the respective first and second beam images in the projected scenes of the respective first and second cameras. First and second ambiguity planes are then formed from the respective first and second projected beam images. An intersection of the first and second ambiguity planes is then determined, identifying the position of the laser beam. A source of the laser beam is then determined, along with a camera-source plane. A beam elevation angle with respect to this plane is then determined, as well as beam azimuth angles with respect to lines between the respective camera and the source.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: December 9, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Frank E. Hanson, Charles S. Bendall
  • Publication number: 20140354990
    Abstract: The invention provides a method for measuring light scattered on a sample in a medium, in particular a fluid medium, that comprises the following steps: providing a rotatably arranged measuring cell with a substantially circular cross-section in a plane perpendicular to the axis of rotation for receiving the medium and the sample, rotating the measuring cell, preferably at least once by substantially 360°, about the axis of rotation, in particular by means of a drive, emitting a laser beam by means of a laser onto the sample located within the measuring cell in the plane perpendicular to the axis of rotation at different angles of rotation of the measuring cell, the measuring cell maintaining its position in the direction of the axis of rotation, detecting scattered light signals by means of at least two detectors arranged in a circle and concentrically to the centre of rotation of the measuring cell and fixed within set, different angular ranges at different angles of rotation of the measuring cell, and dete
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Inventor: Roland Welz
  • Patent number: 8876569
    Abstract: The embodiments of the present invention disclose a vacuum cell-assembling device and a cell-assembling method. The vacuum cell-assembling device comprises: an upper substrate, a signal processing apparatus, and a lower substrate provided opposite to the upper substrate, wherein the upper substrate is provided with a light-emitting apparatus thereon, and the lower substrate is provided a photosensitive receiving element array thereon, and the photosensitive receiving element array is connected with the signal processing apparatus, and the signal processing apparatus is adapted for converting the electrical signals from the photosensitive receiving element array to a liquid crystal diffusion-simulation image.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: November 4, 2014
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventors: Bingyu Chen, Huan Tang, Tingze Dong, Ying Liu
  • Publication number: 20140293273
    Abstract: Disclosed herein is an optical measuring device including: a light applying section configured to apply exciting light to a sample flowing in a channel; and a scattered light detecting section configured to detect scattered light generated from the sample irradiated with the exciting light on the downstream side of the sample in the traveling direction of the exciting light; the scattered light detecting section including a scattered light separating mask for separating the scattered light into a low numerical aperture component having a numerical aperture not greater than a specific value and a high numerical aperture component having a numerical aperture greater than the specific value; a first detector for detecting the low numerical aperture component; and a second detector for detecting the high numerical aperture component.
    Type: Application
    Filed: June 11, 2014
    Publication date: October 2, 2014
    Applicant: Sony Corporation
    Inventors: Shunpei Suzuki, Shingo Imanishi, Gakuji Hashimoto, Suguru Dowaki
  • Publication number: 20140285802
    Abstract: [Subject] To offer a light scattering particle counter that improves the SN ratio by sufficiently attenuating the high frequency noise component while suppressing the attenuation of the signal component. [Means for Solving the Problems] A light scattering particle counter which irradiates a laser beam La to a sample fluid and forms a particle detection area 13, a multi-channel light detecting element receives scattered light Ls from a particle passing through the particle detection area and detects the particle, the time constants ?c, ?m, ?e of the low pass filters F1, F2, F3, F4, F5 are set depending on the beam diameter of the laser beam La and the flow velocity of the fluid which flows through each divided area.
    Type: Application
    Filed: November 5, 2013
    Publication date: September 25, 2014
    Applicant: Rion Co., Ltd.
    Inventors: Masaki SHIMMURA, Takehiro IMAI, Takuya TABUCHI
  • Publication number: 20140268144
    Abstract: An airborne, gas, or liquid particle sensor with multiple particle sensor blocks in a single particle counter. Each sensor would sample a portion of the incoming airstream, or possibly a separate airstream. The various counters could be used separately or in concert.
    Type: Application
    Filed: March 15, 2014
    Publication date: September 18, 2014
    Applicant: Particles Plus, Inc.
    Inventor: David PARISEAU
  • Publication number: 20140268079
    Abstract: A particle counter may include a housing having an inlet, an outlet, and a window therebetween. The inlet and the outlet may be configured such that a fluid can be flowed therethrough. A plurality of light sources may be arranged outside the housing to provide lights of different wavelengths into the housing through the window. Sensors may be provided outside the housing to detect fractions of the lights scattered by a bubble and/or a particle in the fluid. A control part may be configured to monitor intensities of the lights detected by the sensors and to analyze a difference in intensity between the scattered lights, thereby distinguishing the particles from the bubbles in the fluid.
    Type: Application
    Filed: November 15, 2013
    Publication date: September 18, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinho KIM, Jiyoung KIM, Jeong-In YOON, Kwangshin LIM
  • Patent number: 8773660
    Abstract: The invention refers to an arrangement and a method for determining a longitudinal position of a stopper for sealing a compartment of a translucent medicament container for a liquid medicament (M). The arrangement comprises a circular light source and a photo sensitive sensor, wherein either the light source or the sensor is laterally arrangeable next to the medicament container extending over at least part of the length of the medicament container, and wherein the respective other of the light source and the sensor is arrangeable in a circular manner around a head of the medicament container. The light source is arranged to emit light into the medicament container. The light is scattered by the medicament or medicament container and detected by the sensor. The sensor is connected to a processor unit for detecting the position of the stopper).
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: July 8, 2014
    Assignee: Sanofi—Aventis Deutschland GmbH
    Inventors: Christian Pommereau, Anke Liewald, Nils Basso, Thomas Nagel, René Richter, Robert Witt
  • Patent number: 8773661
    Abstract: A sheathless flow cytometry system is disclosed wherein a fluid containing particles of interest is illuminated in the sensing region with a light source. Light resulting from the interaction of the particles with the illumination is received by a lens, and focused toward a field stop having an aperture comprising relatively large end portions and a relatively small center portion. Light deflectors are disposed over the relatively large end portions of the aperture. The system is arranged such that light from particles in focus in the sensing region is focused on the relatively small center portion of the aperture. Peripheral detectors receive light from the light deflectors, and a center light detector receives light passing through the center portion. The detector signals may be used to identify which of the detector signals correspond to particles in focus as they passed through the sensing region.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: July 8, 2014
    Assignee: University of Washington
    Inventor: Jarred E. Swalwell
  • Patent number: 8760652
    Abstract: An apparatus for measuring the light scattering properties of a sample in a liquid medium, wherein the liquid medium with the sample is illuminated by a laser beam in a measuring cell transversely to the direction of filling the liquid medium in the measuring cell or transversely to the flow direction of the liquid medium within the measuring cell, comprising a laser, a cylindrical measuring cell, a first inner aperture system, a second outer aperture system and at least two detectors, wherein the detectors are arranged outside of the second outer aperture system so that they collect the light scattered on the sample within set, different angle ranges, wherein the first inner aperture system and the second outer aperture system are formed and arranged circularly and concentrically around the axis of the measuring cell. Use of the apparatus and a method that makes use of the apparatus are also disclosed.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: June 24, 2014
    Assignee: Postnova Analytics GmbH
    Inventors: Dietheim Fröse, Roland Welz
  • Patent number: 8760651
    Abstract: A smoke detector (1) includes: a light emitting section (6); a light receiving section (7); a smoke detecting section (12), the smoke detector (1) being configured to detect smoke or the like in a manner that the light receiving section (7) receives, via a light transmissive member (11), scattered light generated when light emitted from the light emitting section (6) is scattered in the smoke detecting section (12) due to particles of the smoke or the like; and a test light source (22) provided for detecting light receiving sensitivity of the light receiving section. The smoke detector (1) is further configured to detect a reduction in the light receiving sensitivity of the light receiving section (7) through detection of an increase in received light intensity of test light, which is emitted from the test light source (22) and is received by the light receiving section (7).
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 24, 2014
    Assignee: Nohmi Bosai Ltd.
    Inventors: Kenichi Kato, Takashi Ito
  • Patent number: 8705040
    Abstract: An apparatus and method for determining characteristics of particles, by measuring characteristics which are related to the velocity of the particles. Particle size distribution is determined from motion of the particles in an acceleration field, or from Brownian motion of the particles. Zeta potential and particle mobility are determined by measuring velocity related characteristics of charged particles in an electric field. Particle velocity characteristics are determined by measuring dynamic properties of light, which is scattered by the particles. A light source illuminates the particles. Scattered light, from the particles, is mixed with light, from the light source, onto at least one light detector. The detector produces a signal, which is indicative of velocity related characteristics of the particles. The velocity characteristics are also determined by measuring light scattered from particles moving through an illumination pattern, with a periodic intensity structure.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: April 22, 2014
    Inventor: Michael Trainer
  • Patent number: 8699028
    Abstract: A cell/particle analyzing device includes a light-emitting unit, a light-diverting unit, a first receiving unit and a second receiving unit. The light-emitting unit generates a first light beam. The light-diverting unit is connected to the light-emitting unit and has an input end, a bidirectional transceiving end and an output end. The input end receives the first light beam generated by the light-emitting unit. The bidirectional transceiving end transmits the first light beam generated by the light-emitting unit and receives a second light beam. The output end outputs the second light beam. The first receiving unit is connected to the output end of the light-diverting unit and receives the second light beam. The second receiving unit is aligned with the bidirectional transceiving end.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: April 15, 2014
    Assignee: National Pingtung University of Science and Technology
    Inventors: Yao-Nan Wang, Lung-Ming Fu, Chang-Hsien Fu, Chien-Hsiung Tsai