Scattered Or Reflected Light Patents (Class 250/574)
  • Patent number: 11029241
    Abstract: Methods and apparatuses to detect particles in dense particle fields are described. A time varying signal is partitioned into a plurality of segments. Parameters are determined from the segments. The time varying signal is parsed into a plurality of individual particle signal components based on the plurality of parameters.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: June 8, 2021
    Assignee: Artium Technologies, Inc.
    Inventors: William D. Bachalo, Gregory A. Payne, Khalid Ibrahim, Michael J. Fidrich, Chad M. Sipperley
  • Patent number: 11024154
    Abstract: Devices, methods, and systems for a self-testing fire sensing device are described herein. One device includes an adjustable particle generator and a variable airflow generator configured to generate an aerosol density level, an optical scatter chamber configured to measure a rate at which the aerosol density level decreases after the aerosol density level has been generated, and a controller configured to compare the measured rate at which the aerosol density level decreases with a baseline rate, and determine whether the self-testing fire sensing device requires maintenance based on the comparison of the measured rate at which the aerosol density level decreases and the baseline rate.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: June 1, 2021
    Assignee: Honeywell International Inc.
    Inventors: Scott Lang, Michael Barson, Benjamin Wolf, Christopher Dearden
  • Patent number: 11016109
    Abstract: A diagnostic analyzer includes a rotating device, a first optical reader, and a second optical reader. The rotating device includes a first darkened compartment, a second darkened compartment, and an optical path along which the first darkened compartment and the second darkened compartment travel. The first optical reader is operable to read the first darkened compartment and the second optical reader is operable to read the second darkened compartment.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: May 25, 2021
    Assignee: ABBOTT LABORATORIES
    Inventor: Robert Luoma
  • Patent number: 11002659
    Abstract: An optical system for acquiring fast spectra from spatially channel arrays includes a light source for producing a light beam that passes through the microfluidic chip or the channel to be monitored, one or more lenses or optical fibers for capturing the light from the light source after interaction with the particles or chemicals in the microfluidic channels, and one or more detectors. The detectors, which may include light amplifying elements, detect each light signal and transducer the light signal into an electronic signal. The electronic signals, each representing the intensity of an optical signal, pass from each detector to an electronic data acquisition system for analysis. The light amplifying element or elements may comprise an array of phototubes, a multianode phototube, or a multichannel plate based image intensifier coupled to an array of photodiode detectors.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: May 11, 2021
    Assignee: CYTONOME/ST, LLC
    Inventors: John R. Gilbert, Edward Sinofsky, Manish Deshpande
  • Patent number: 10976201
    Abstract: The present disclosure provides for an apparatus for measuring optical properties of liquid samples. The apparatus includes a sample chamber and a spectrometer optically coupled with the sample chamber. One or multiple sources of electromagnetic radiation are positioned relative to the sample chamber to direct electromagnetic radiation through the sample chamber to measure the color, haze, and/or clarity of the sample. Also provided is a method for measuring optical properties of liquid samples, including inserting a cuvette containing a liquid sample into the sample chamber of the apparatus, and directing electromagnetic radiation from the one or more sources and through the sample to measure the color, haze, and/or clarity of the sample. The apparatus and methods may be used to analyze various samples, such as petroleum-based fluids, including fuels and lubricants.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: April 13, 2021
    Inventor: Ranzy Morgan, III
  • Patent number: 10962400
    Abstract: There is provided a measurement system that measures the volume of a drug solution that fills a needle-shaped recess of a mold. A measurement unit of the measurement system measures respective heights of a plurality of measurement points which are stored in a storage unit and are preset on a plane parallel to the mold, in a direction orthogonal to the plane. A surface shape calculation unit calculates a three-dimensional shape of the surface of the drug solution on the basis of the heights of the plurality of measurement points measured by the measurement unit. A volume calculation unit calculates the volume of the drug solution that fills the needle-shaped recess on the basis of the three-dimensional shape of the surface of the drug solution calculated by the surface shape calculation unit and the shape of the needle-shaped recess of the mold.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: March 30, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Murooka, Yi Hu, Yasutomo Goto
  • Patent number: 10962462
    Abstract: A particulate matter-sensing sensor assembly may include a housing in which an air flow passage through which air flowed thereinto from the outside thereof flows is formed, a fan motor internally disposed within the housing for flowing air into the air flow passage from the outside, a light source emitting light to allow light to intersect with air flowing into the air flow passage, and a light receiving sensor configured to receive light scattered by dust contained in air passing through the air flow passage, wherein the air flow passage is configured such that a region where air flows thereinto from the outside thereof has a cross-sectional area greater than that of a region where light emitted from the light source intersects with flowing air.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: March 30, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Dong-Won Yeon, Myung-Jun Kim, Sang-Ho Oh, Chae-Geun Lim, Jun-Ho Choi
  • Patent number: 10948408
    Abstract: A toroidal optical device can include a ring mirror defining a toroidal optical cavity symmetric about an axis and an optical coupler situated inside the toroidal optical cavity. The optical coupler can be situated to direct an input light first received from outside the toroidal optical cavity propagating inside the toroidal optical cavity, to multiply reflect from the ring mirror inside the toroidal optical cavity. A method includes producing one or more additional ring mirrors defining a toroidal optical cavity symmetric about a sagittal axis using a first ring mirror as a master form, and affixing an optical coupler inside the optical cavity to at least one of the one or more additional ring mirrors.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: March 16, 2021
    Assignee: Battelle Memorial Institute
    Inventors: Bruce E. Bernacki, Mark C. Phillips
  • Patent number: 10942106
    Abstract: An apparatus is provided for determining particle characteristics, in which a flow path is generated containing particles to be analyzed. A light detection system detecting light received from a measurement zone which has been scattered by the particles. A time duration for which a particle remains in the measurement zone is measured to determine an effective aerodynamic particle diameter and a peak detected received light intensity is measured to determine an effective optical particle diameter. A further particle parameter is also obtained relating to the shape and/or density of the particle. This approach enables more information than only a particle size to be obtained using a single-stage optical analysis system. The additional information may be used to characterize the particles more accurately.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: March 9, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Qiu Shi Zhang, Shuang Chen
  • Patent number: 10943449
    Abstract: A detection system for measuring one or more conditions within a predetermined area includes a fiber harness having at least one fiber optic cable for transmitting light, the at least one fiber optic cable defining a node arranged to measure the one or more conditions. A control system is operably coupled to the fiber harness such that scattered light associated with the node is transmitted to the control system, wherein the control system analyzes the scattered light to determine at least one of a presence and magnitude of the one or more conditions at the node. An optical enhancement device is operably connected to the fiber harness or to the control system to reduce interference sources transmitted from the node.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: March 9, 2021
    Assignee: CARRIER CORPORATION
    Inventors: Michael J. Birnkrant, Jennifer M. Alexander, Peter R. Harris
  • Patent number: 10935480
    Abstract: An optical-particle sensor head comprises an electromagnetic radiation source to transmit electromagnetic radiation toward the detection chamber; one or more baffles, between the light source and the detection chamber, to restrain a spread of the electromagnetic radiation from the electromagnetic radiation source; and at least two off-angle photo-sensors.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: March 2, 2021
    Assignee: AIRVIZ INC.
    Inventors: Illah Nourbakhsh, Dömötör Gulyás, Michael Taylor, Charles D. Litton
  • Patent number: 10935845
    Abstract: A backlight module and a display device are disclosed, and the backlight module includes: a light source component, a wavelength selection film, and a first light emitting film laminated in sequence. The light source component is configured to emit light of a first wavelength range, the wavelength selection film transmits the light of the first wavelength range and reflect at least light of a second wavelength range, the second wavelength range does not coincide with the first wavelength range, and the first light emitting film is configured to excite and emit blue light under an illumination of the light of the first wavelength range.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: March 2, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zewen Gao, Yutao Hao, Shubai Zhang, Haiwei Sun, Ming Zhai, Pei Qin, Shuo Wang
  • Patent number: 10935478
    Abstract: A particle detecting device is provided. The particle detecting device includes a base, a detecting element, a micro pump and a drive control board. The base includes a detecting channel, a beam channel and a light trapping region. The detecting element includes a microprocessor, a particle sensor and a laser transmitter. The particle sensor is disposed at an orthogonal position where the detecting channel intersects the beam channel. When the micro pump, the particle sensor and the laser transmitter are enabled under the control of the microprocessor, the gas outside the detecting channel is inhaled into the detecting channel. When the gas flows to the orthogonal position where the detecting channel intersects the beam channel, the gas is irradiated by the projecting light source from the laser transmitter, and projecting light spots generated are projected on the particle sensor for detecting the size and the concentration of suspended particles.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: March 2, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Chin-Chuan Wu, Chih-Kai Chen, Ching-Sung Lin, Chi-Feng Huang, Yung-Lung Han, Chun-Yi Kuo
  • Patent number: 10908064
    Abstract: Methods, apparatuses, and systems for detecting and classifying individual airborne biological and non-biological particles, in real time, based on particle size and polarized elastic scatter. Auto-fluorescence content may also be used along with particle size and polarized elastic scatter for further orthogonal classification. With polarized elastic scattering, the degree of linear or circular depolarization produced from particle morphology, refractive index, internal asymmetric structures and molecular optical activity can be used for classifying individual airborne particles. Alternatively, circular intensity differential scattering (CIDS) or linear intensity differential scattering (LIDS) can be used to discriminate individual particles.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 2, 2021
    Assignee: HAMILTON ASSOCIATES, INC.
    Inventor: David B. Silcott
  • Patent number: 10890516
    Abstract: Embodiments relate generally to systems and methods for detecting particulate matter in the air. A particulate matter sensor may comprise an airflow channel; a light source configured to pass light through the airflow channel; an airflow generator configured to generate airflow into the airflow channel; a waveguide configured to direct light from the light source after it passes through the airflow channel and scatters off of particulate matter within the airflow channel; a photodiode configured to receive light scattered by the waveguide; and a computing device coupled to the photodiode having a processor and a memory storing instructions which, when executed by the processor, determines a mass concentration of particles in the airflow channel based on an output of the photodiode.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 12, 2021
    Assignee: Honeywell International Inc.
    Inventors: Ouyang Yang, Lu Tian, Chen Feng, Lu Jinnan, Rui Hou, Tao Chen
  • Patent number: 10880005
    Abstract: A packaged integrated white light source configured for illumination and communication or sensing comprises one or more laser diode devices. An output facet configured on the laser diode device outputs a laser beam of first electromagnetic radiation with a first peak wavelength. The first wavelength from the laser diode provides at least a first carrier channel for a data or sensing signal.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: December 29, 2020
    Assignee: Soraa Laser Diode, Inc.
    Inventors: Melvin McLaurin, James W. Raring, Paul Rudy, Vlad Novotny
  • Patent number: 10875059
    Abstract: A method and apparatus for automated particulate extraction from solid parts is disclosed herein, which comprises a test tank (42) and a liquid cleaning medium (46) for washing a test part (48). The principle advantages offered by this invention include the ability to verify that the test tank (42) has met a required tank clean threshold (102) as specified by a percentage reduction of contaminants (78) through the use of a liquid quality sensor (76) which repeatedly measures the contamination level of a liquid cleaning medium (46) exiting the test tank (42). Type I and Type II sampling error are eliminated by verifying that the liquid cleaning medium (46) passing from the test tank (42) has measured contaminants (78) reaching both a maximum value (98) and then falling below a specified tank clean threshold (102) prior to ending the cleaning cycle.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: December 29, 2020
    Inventor: Nathaniel David Bauer
  • Patent number: 10871452
    Abstract: A system for detection and monitoring includes one or more light sources configured to emit light into a monitored space. At least one of the light sources is configured to emit a respective emission cone having a respective emission cone axis. One or more light sensing devices are configured to receive scattered light. At least one of the one or more light sensing devices defines a respective acceptance cone having a respective acceptance cone axis. The emission cone axis of the emission cone, and/or the acceptance cone axis of the light sensing device is angled toward the other. A processor is operatively connected to the at least one light sensing devices to evaluate the scattered light for the presence of particulates in the monitored space.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: December 22, 2020
    Assignee: Kidde Technologies, Inc.
    Inventors: David L. Lincoln, Jennifer M. Alexander, Michael J. Birnkrant, Peter R. Harris
  • Patent number: 10852233
    Abstract: A system for particulate detection and monitoring includes one or more light sources configured to emit light into a monitored space. The system includes at least two light sensing devices configured to receive scattered light. Respective sensing portions of the three two sensing devices share a common centerline axis. A processor is operatively connected to the two light sensing devices and is configured to evaluate the scattered light for presence of particulates in the monitored space.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: December 1, 2020
    Assignee: Kidde Technologies, Inc.
    Inventors: David L. Lincoln, Jennifer M. Alexander, Michael J. Birnkrant, Peter R. Harris
  • Patent number: 10837890
    Abstract: Provided is a particle measuring device and a particle measuring method for measuring a particle size with favorable accuracy. A flow cell (1) includes a flow passage (1a) of sample fluid. An irradiation optical system (3) irradiates, with light from a light source (2), the sample fluid in the flow passage (1a). An imaging unit (4) captures, from an extension direction of the flow passage (1a), an image of scattered light from the particle in a detection region in the flow passage (1a), the light passing through the detection region. A particle size specifying unit specifies a movement amount of the particle in a two-dimensional direction by Brownian motion based on multiple still images of a particle image captured at a predetermined frame rate by the imaging unit (4), thereby specifying the particle size of the particle from the movement amount in the two-dimensional direction.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 17, 2020
    Assignees: RION Co., Ltd., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kaoru Kondo, Takuya Tabuchi, Kazuna Bando, Haruhisa Kato, Yusuke Matsuura
  • Patent number: 10830643
    Abstract: In one implementation, a spectral microscope may comprise a substrate with a planar lens, the planar lens including a phase profile including an axial focus and an oblique focus, a light source to excite a signal of a particle among a plurality of particles, and a detector to receive light generated from the light source from the axial focus of the planar lens and a spectral color component of the excited signal of the particle from the oblique focus of the planar lens.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: November 10, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Francesco Aieta, Charles M. Santori, Anita Rogacs
  • Patent number: 10820863
    Abstract: An oximeter probe that takes into account tissue color (e.g., skin color or melanin content) to improve accuracy when determining oxygen saturation of tissue. Light is transmitted from a light source into tissue having melanin (e.g., eumelanin or pheomelanin). Light reflected from the tissue is received by a detector. A compensation factor is determined to account for absorption due to the melanin. The oximeter uses this compensation factor and determines a melanin-corrected oxygen saturation value.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: November 3, 2020
    Assignee: ViOptix, Inc.
    Inventors: Kate LeeAnn Bechtel, Kimberly Merritt Shultz, Alex Michael Margiott, George Edward Kechter
  • Patent number: 10799150
    Abstract: The invention relates to diagnosis in general and more specifically a system and a method for determining the presence of jaundice in newborn babies, also known as neonatal jaundice. A main objective of the present invention is to provide a simple system and method for determining the presence of jaundice. Particularly since most deaths due to jaundice occur in low-income countries, there is a large unmet need of simple, reliable and affordable technologies able to identify at-risk newborn. The objective is accomplished through receiving a depiction of skin from an RGB sensor, and then using either an optical diffusion model of the skin or Monte Carlo simulations to calculate the bilirubin concentration. A meta model of the optical diffusion model or Monte Carlo simulations can also be used. Colour calibration is also performed by e.g. thin-plate spline interpolation.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: October 13, 2020
    Assignee: PICTERUS AS
    Inventors: Gunnar Vartdal, Lise Lyngsnes Randeberg, Anders Aune, Aleksander Kringstad
  • Patent number: 10801940
    Abstract: A low energy particle detection device comprises alight source, multiple photodetectors positioned at different scattering angles, and a microcontroller for computing a total mass concentration of fine and ultrafine particles and a mass fraction of ultrafine particles to fine particles in an incoming air particle airflow based on the ratio of the readings from the multiple photodetectors. The optical particle detection device also can determine surface area concentration of the air particle sample and the associated lung deposited surface area (LDSA) to measure and improve estimates of air quality.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: October 13, 2020
    Assignee: AIRVIZ INC.
    Inventors: Illah Nourbakhsh, Michael Taylor, David Litton, Joshua Schapiro
  • Patent number: 10794832
    Abstract: A measurement device includes mechanical support elements (101-104) for supporting a sample well, other mechanical support elements (105-109) for supporting a measurement head (112) suitable for optical measurements, and a control system (111) configured to control the measurement head to carry out at least two optical measurements from at least two different measurement locations inside the sample well, where each measurement location is a center point of a capture range from which radiation is captured in the respective optical measurement. The final measurement result is formed from the results of the at least two optical measurements in accordance with a pre-determined rule. The use of the at least two optical measurements from different measurement locations reduces measurement variation in situations where the sample well (153) contains a piece (158) of sample carrier.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 6, 2020
    Assignee: WALLAC OY
    Inventor: Ville Laitala
  • Patent number: 10769938
    Abstract: The invention discloses a smoke detection method, which comprises the steps of: adjusting a detection period of a smoke alarm to be a rapid detection period when a smoke density is detected to meet a set density threshold; calculating a ratio of an electrical signal increment caused by a first transmitted signal to an electrical signal increment caused by a second transmitted signal; and increasing a smoke alarm threshold when smoke is judged not to be caused by a fire hazard based on the ratio. In the invention, different types of smoke can be identified and different alarm modes can be selected to solve the problem of a false alarm.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: September 8, 2020
    Assignee: SITERWELL ELECTRONICS CO., LIMITED
    Inventors: Dongfang Chen, Xingxing Huang, Qingqin Shi
  • Patent number: 10739244
    Abstract: A system and method monitor contaminants in fluid flowing in a structure, including contaminating particles that may be present in a fuel supplied through a pipe to a combustor of a gas turbine. The system includes a light source for projecting a light sheet on a cross-sectional area of the structure; an optical sensor for sensing particles passing through the light sheet; and a controller for controlling the light source and the sensor. A window can be formed in an outer wall of the structure, and the sensor disposed outside the structure to sense the passing particles via the window. The optical sensor acquires a monitoring image in which the particles passing through the light sheet are included, and the controller performs an image analysis on the acquired monitoring image and calculates whether contaminants are included in the fluid and a degree to which contaminants are included in the fluid.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: August 11, 2020
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Sang Jo Kim
  • Patent number: 10732088
    Abstract: Disclosed is a sheath delivery system that uses a continuous flow of sheath fluid into a pressurized internal reservoir that substantially matches the outflow of sheath fluid through the nozzle of a flow cytometer. A substantially constant level of the sheath fluid is maintained. If the sheath fluid level falls below a desired level, or goes above a desired level, a dampened control system is used to reach the desired level. In addition, air pressure in the pressurized internal container is controlled so that an external sheath container can be removed and refilled with additional sheath fluid without stopping the sheath delivery system 100. Differences in pressure are detected by a droplet camera, which measures the droplet breakoff point to determine the pressure of the sheath fluid in the nozzle.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: August 4, 2020
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Daniel Nelson Fox, Nathan Michael Gaskill-Fox
  • Patent number: 10728972
    Abstract: There is provided a light control circuit including a detected voltage generating circuit, a reference voltage generating circuit, an error amplifier, an NMOS driver and a light source. The detected voltage generating circuit outputs a detected voltage to a first input terminal of the error amplifier. The reference voltage generating circuit outputs a reference voltage to a second input terminal of the error amplifier. The NMOS driver changes a drive current of the light source according to an output of the error amplifier.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: July 28, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Kuan-Choong Shim, Gim-Eng Chew
  • Patent number: 10690583
    Abstract: The present technology provides a technology of improving measurement efficiency in microparticle measurement for optically measuring a characteristic of a microparticle. For this, in the present technology, there is provided a microparticle measuring device and the like provided with a detecting unit which detects light from a microparticle sent from one of a plurality of containers containing microparticles, and an information processing unit which controls to specify a feature amount related to a detection number in a certain time section on the basis of information detected by the detecting unit, determine that the feature amount is abnormal on the basis of a predetermined threshold, and finish detection for the one container.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: June 23, 2020
    Assignee: SONY CORPORATION
    Inventor: Katsutoshi Tahara
  • Patent number: 10682955
    Abstract: Embodiments of the disclosure provide a camera system for a vehicle and a sensing method using such a camera system. The camera system includes a plurality of cameras each configured with a different camera setting. The cameras collectively keep a predetermined image space in focus. The predetermined image space includes at least one object. The camera system further includes a controller. The controller is configured to receive image data captured by the plurality of cameras of the predetermined image space, and determine depth information of the at least one object based on the image data.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: June 16, 2020
    Assignee: BEIJING VOYAGER TECHNOLOGY CO., LTD.
    Inventors: Zafar Takhirov, Sen Hu
  • Patent number: 10677705
    Abstract: A particle detector, e.g. a smoke detector is described. In one form the detector includes a detection chamber and radiation source emitting a single beam of radiation. The detector also includes a radiation receiving system and an imaging system arranged to receive radiation from a common region of interest. Methods and systems for analysing the output of a particle detector are also disclosed.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 9, 2020
    Assignee: Garrett Thermal Systems Limited
    Inventors: Kate Cooper, Ronald Knox
  • Patent number: 10663184
    Abstract: An air conditioner including a first filter; a second filter located downstream of the first filter; a dust amount sensor located upstream of the first filter and having a hole through which dust passes, the dust amount sensor configured to transmit, per unit of time, each of a first total, which is an amount of dust in a first size range, and a second total, which is an amount of dust in a second size range smaller than the first size range, of the dust passing through the hole; and a controller configured to output a service signal for the first filter if the accumulated value of the first total transmitted from the dust amount sensor exceeds a first set value, and output a service signal for the second filter if the accumulated value of the second total transmitted from the dust amount sensor exceeds a second set value.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: May 26, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Jungmin Park, Hamin Jeon, Howon Son, Heejae Kim
  • Patent number: 10656106
    Abstract: In some embodiments, a system for collecting information from a sample includes a sample stage and one or more signal detectors. The sample stage includes a heating element, and the heating element is capable of heating at least a portion of the sample stage to at least 100 Celsius. The one or more signal detectors has a detection material with a silicon nitride window positioned between the detection material and the sample stage.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: May 19, 2020
    Assignee: EDAX, Incorporated
    Inventor: Patrick Paul Camus
  • Patent number: 10641623
    Abstract: An onboard detector includes a cable including plural electric wires and a sensor module provided at an end of the cable. The sensor module includes a sensor, a housing member and a molded article. The sensor includes a sensor main body including a detecting element and plural lead wires electrically connected to the electric wires. The housing member includes a joint housing portion that houses joints of the electric wires and the lead wires. The molded article includes molding resin that is molded so as to cover at least a portion of the housing member and so as not to come into contact with the sensor main body. The joint housing portion includes a wire holding wall holding the electric wires and a sensor holding wall holding the lead wires so as to hold the sensor.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: May 5, 2020
    Assignee: HITACHI METALS, LTD.
    Inventor: Yukio Ikeda
  • Patent number: 10625265
    Abstract: Provided herein are an optical test platform and corresponding method of manufacturing the same. The test platform may include a shell defining a cavity for receiving a sample tube, a first aperture, and a second aperture. The first aperture and the second aperture of the shell may each be configured to optically couple the cavity with an exterior of the shell. The test platform may further include a first window and a second window embedded in the shell. The first window may seal a first aperture and the second window may seal a second aperture. The first window and second window may each permit the optical coupling of the cavity with the exterior of the shell. The first window and the second window may be optically coupled via the cavity, and the shell may prohibit optical coupling between the first window and the second window through the shell.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: April 21, 2020
    Assignee: BIOMERIEUX, INC.
    Inventors: Jack R. Hoffmann, Jr., Gregory R. Maes, Jeffrey Edward Price, Jared Ian Bullock, Samuel B. Crandall, Jacky S. Yam, Christopher George Kocher, Walter J. Clynes
  • Patent number: 10621845
    Abstract: Provided is an alarm device which is attached to an installation surface of an installation object and has an installation surface side facing surface facing an installation surface, the alarm device including detection means for detecting smoke included in a gas, a casing accommodating the detection means, and guide means for guiding a gas into the casing.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: April 14, 2020
    Assignee: HOCHIKI CORPORATION
    Inventor: Tomohiko Shimazu
  • Patent number: 10610864
    Abstract: The present disclosure provides for a system and method of concentrating airborne particles, specifically toward the center of one or more intake channels of PM sensors. The invention provides a simple and cost effective device that, when used in conjunction with a MEMS PM sensor or the like, can increase the sensitivity of said device by orders of magnitude. An in-line MEMS PM concentrator uses a converging optical intensity field to concentrate particulate matter along the center of a longitudinal axis of a microchannel. More specifically, the concentrator is designed to bring in ambient air containing PM through a microchannel and concentrate the PM in the center of the microchannel using a converging optical intensity field within a confocal optical cavity.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: April 7, 2020
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Igor Paprotny, Omid Mahdavipour
  • Patent number: 10585029
    Abstract: An optical analysis device for determining particulate matter includes three light sources having different wavelengths, an apparatus for combining the three transmitted light beams on a common optical path, a measurement volume, an optical axis in the forward scattering direction defines the scattering angle 0°, a light absorption apparatus at 0° that absorbs unscattered light, and six detectors which are arranged at different specified angles which are as close as possible to 0° directly next to the light absorption apparatus, at a second scattering angle between 7° and 40°, at a third scattering angle between 41° and 70°, at a fourth scattering angle between 71° and 115°, at a fifth scattering angle between 116° and 145°, at a sixth scattering angle between 146° and 180°. A control and evaluation unit controls the light sources such that the scattered light is detected in a wavelength selective manner by the detectors.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: March 10, 2020
    Assignee: SICK ENGINEERING GMBH
    Inventors: Alexander Schladitz, Kai Klinder
  • Patent number: 10564085
    Abstract: A device and method for measuring precipitation, in particular snowfall or hail, which has a measuring chamber for receiving a precipitation particle, at least one light source for radiating the measuring chamber with light, and at least one sensor for sensing an intensity of the light radiating through the measuring chamber. At least two measurement areas, which are arranged one below the other, are provided in the measuring chamber, and the intensity of the light radiating through each of the measurement areas can be detected separately.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: February 18, 2020
    Assignee: KISTERS AG
    Inventors: Martin Löffler-Mang, Manuel Del Fabro
  • Patent number: 10554097
    Abstract: Hollow motor apparatuses and associated systems and methods for manufacturing the same are disclosed herein. In representative embodiment, a hollow motor apparatus includes a rotor assembly rotatable about a rotation axis, a stator assembly positioned adjacent to the rotor assembly and coaxially with the rotor assembly relative to the rotation axis, and a bearing assembly operably coupled to the rotor assembly. The rotor assembly has an inner portion around an opening configured to receive at least a portion of a payload. The bearing assembly is disposed outside the inner portion of the rotor assembly and is configured to maintain a position of the rotor assembly relative to the stator assembly.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: February 4, 2020
    Assignee: SZ DJI Technology Co., Ltd.
    Inventors: Huai Huang, Jin Zhao, Peng Wang, Xiaoping Hong, Zhenhao Zhou
  • Patent number: 10520414
    Abstract: Various embodiments include methods of reducing false-particle counts in a water-based condensation particle counter (CPC). One embodiment of a method includes delivering water into one or more wicks, sensing an excess volume of water delivered to the wicks, collecting the excess volume of water into a collection reservoir, and draining the excess volume of water from the collection reservoir. Other methods and apparatuses are disclosed.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: December 31, 2019
    Assignee: TSI Incorporated
    Inventors: Sreenath Avula, Richard Remiarz, George John Chancellor, Tyler Anderson, Daniel C. Bjorkquist, Robert Caldow, Sean Morell, Frederick R. Quant, Susanne V. Hering, Gregory S. Lewis
  • Patent number: 10520431
    Abstract: A particle analyzer is intended to accurately obtain an aspect ratio and a major axis length or a minor axis length of particles being dispersed in a dispersion medium.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: December 31, 2019
    Assignee: HORIBA, LTD.
    Inventor: Keijiro Sakuramoto
  • Patent number: 10488314
    Abstract: Various embodiments include methods of reducing false-particle counts in a water-based condensation particle counter (CPC). One embodiment of a method includes delivering water into one or more wicks, sensing an excess volume of water delivered to the wicks, collecting the excess volume of water into a collection reservoir, and draining the excess volume of water from the collection reservoir. Other methods and apparatuses are disclosed.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: November 26, 2019
    Assignee: TSI Incorporated
    Inventors: Sreenath Avula, Richard Remiarz, George John Chancellor, Tyler Anderson, Daniel C. Bjorkquist, Robert Caldow, Sean Morell, Frederick R. Quant, Susanne V. Hering, Gregory S. Lewis
  • Patent number: 10482740
    Abstract: A method for monitoring an area includes distributing, by a detector unit, light during a first instance of time in order to characterize the area based on first data associated with the first instance of time; distributing, by the detector unit, light during at least a second instance of time in order to obtain second data; comparing a first portion of the second data to at least one of: a second portion of the second data and the first data; and based on the comparison, signaling an alarm condition by the detector unit when an evolution in the second data is detected in an amount greater than a threshold.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 19, 2019
    Assignee: CARRIER CORPORATION
    Inventors: Hui Fang, Antonio M. Vincitore, Peter R. Harris, Jie Xi
  • Patent number: 10463324
    Abstract: A photon-counting system includes photon-counting detectors that output photon-counting signals to indicate a number of photons impinging on the photon-counting detectors. The system also includes analog-to-digital conversion circuits, which convert one of the photon-counting signals into a digital photon-counting signals, and a processor that processes the digital photon-counting signals to extract information from the photon-counting signals. The information extracted can include a photon-counting rate. An intelligent multiplexer that, based on the photon-counting rate, modifies interconnection of the photon-counting detectors and analog-to-digital conversion circuits and provides digital photon-counting signals for a selected set of the analog-to-digital converters to the processor.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: November 5, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Daniel Gagnon, Gin Chung Wang
  • Patent number: 10458977
    Abstract: The present invention relates to a method for determining the relief of the skin surface of a subject, and hence the degree of maturation of the said skin surface. Methods for identifying active agents, raw materials and formulation are also provided.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: October 29, 2019
    Assignee: LABORATOIRES EXPANSCIENCE
    Inventors: Nadege Lachman, Philippe Msika, Joachim Fluhr
  • Patent number: 10444174
    Abstract: A metal detection apparatus (9) is tested with a test device (7) having at least one test article (79), movable through a detection zone (60). The test article is moved through the detection zone along a first transfer axis (ca) and a first input signal is measured. A first threshold (th1) is determined, where an amplitude of the first input signal exceeds the first threshold (th1). Then, an identical test article is moved through the detection zone along a further transfer axis (ta; . . . ) and a further input signal is measured and a further threshold (th2; . . . ) is determined, where an amplitude of the further input signal exceeds the further threshold (th2; . . . ). The first or further threshold (th1; th2; . . . ) is selected in the signal processing path (4) whenever the test article is moved along the related transfer axis (ca; ta; . . . ).
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: October 15, 2019
    Assignee: Mettler-Toledo Safeline Ltd.
    Inventors: Daren Butterworth, Andrew Blackburn
  • Patent number: 10426361
    Abstract: A method and an apparatus for measuring a time-varying change in an amount of blood in a tissue include exciting a fluorescence agent in the blood, acquiring a time-varying light intensity signal during a pulsatile flow of the blood through the tissue volume, the pulsatile flow having a systolic and a diastolic phase resembling a conventional photoplethysmogram, and processing the acquired signal by applying a modified Beer-Lambert law to obtain the measurement of the time-varying change in the amount of blood in the tissue volume. The instantaneous molar concentration of the fluorescence agent is determined by utilizing a concentration-mediated change in a fluorescence emission spectrum of the fluorescence agent.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: October 1, 2019
    Assignee: NOVADAQ TECHNOLOGIES ULC
    Inventors: Robert W. Flower, Robert Anthony Stead, Arthur E. Bailey
  • Patent number: 10413986
    Abstract: A soldering device includes a detection sensor which can detect a liquid level height of molten solder inside a solder bath. It is determined whether or not a detection height which is the detected liquid level height is greater than or equal to a first set height which is arbitrarily set. In a case where the detection height is greater than or equal to the first set height, it is estimated that the amount of molten solder capable of performing a soldering work for a predetermined number or more of boards is stored in the solder bath. The amount of molten solder stored in the solder bath is estimated by multiplying a difference between a detection height which is the detected liquid level height of the molten solder and a second set height which is preset, by an area inside the solder bath in a horizontal direction.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: September 17, 2019
    Assignee: FUJI CORPORATION
    Inventors: Kazuya Degura, Satoru Otsubo