Fluent Material In Optical Path Patents (Class 250/573)
  • Patent number: 10807440
    Abstract: A dual-passage air quality detection device includes a housing, an air quality detection module, a fan, and a main control PCB (printed circuit board). The air quality detection module includes two passages, two laser modules and two photodiodes therein. The fan includes two fans. One of the passages is communicated with the inside of the vehicle, and the other of the passages is communicated with the outside of the vehicle to form two independent air passages for detection. Each of the passages corresponds to one fan for independent sampling, not affecting each other.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: October 20, 2020
    Assignee: MAXMAC SHANGHAI AUTOMOTIVE ELECTRONIC CO., LTD.
    Inventors: Yangxin Lin, Changping Lin, Minsong Lin
  • Patent number: 10782225
    Abstract: The present invention is one that makes it possible to facilitate the assembly of an optical measurement cell, as well as shorten optical path length without taking account of handling of a spacer, and an optical measurement cell 2 including a pair of light transmitting plates 21 and 22 respectively having opposite surfaces 21a and 22a facing each other and containing test liquid X between the pair of opposite surfaces 21a and 22a of the pair of light transmitting plates 21 and 22. In addition, one 21a of the opposite surfaces 21a and 22a is formed with a spacer film 25 that contacts with the other opposite surface 22a to define the distance between the pair of opposite surfaces 21a and 22a.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: September 22, 2020
    Assignee: HORIBA, LTD.
    Inventors: Tetsuji Yamaguchi, Toshikazu Yurugi, Makoto Nagura, Takashi Kimba, Tetsuya Mori
  • Patent number: 10741035
    Abstract: The integrated smoke detection device comprises a carrier (1), a light source (2) arranged on or above the carrier, a light receiver (3) arranged on or above the carrier at a distance from the light source, and a polarizing member (7) arranged on or above the carrier, the light source emitting radiation (a, b) into the polarizing member. The polarizing member is configured to have a boundary surface (11) that linearly polarizes a reflected portion (d) of the radiation emitted by the light source, and an exit surface (12) that allows the reflected portion (d) to exit the polarizing member.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: August 11, 2020
    Assignee: ams AG
    Inventors: Harald Etschmaier, Nobuyoshi Hiramatsu, Olesia Synooka
  • Patent number: 10741036
    Abstract: A smoke detector comprising: a first light source, configured to generate first light beam; a second light source, configured to generate second light beam; a light receiver, configured to respectively generate a first and a second original light detecting signal in response to the first light beam and the second light beam, wherein an energy conversion efficiency of the light receiver at the first wavelength is different from an energy conversion efficiency of the light receiver at the second wavelength; a signal adjusting circuit, configured to amplify the second original light detecting signal to generate a second light detecting signal; and a driving and determining circuit, configured to determine signal intensities of the first original light detecting signal and the second light detecting signal.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: August 11, 2020
    Assignee: Sercomm Corporation
    Inventors: Meng-Chien Chiang, Cheng-Jeng Chou
  • Patent number: 10718502
    Abstract: There is provided an illuminated guy rope system comprising: a light source assembly; a guy rope assembly operably fastened to the light source assembly wherein the guy rope assembly comprises at least one fibre-optic cable and wherein the light source assembly comprises a light source and an optic interface configured to shine light via the fibre-optic cable.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: July 21, 2020
    Assignee: PUP GROUP PTY LTD
    Inventor: Paul Pap
  • Patent number: 10695501
    Abstract: Embodiments described herein generally relate to devices, systems and methods for measuring a volume or number of doses remaining in a drug delivery device that is used for delivering a dose to a patient. In some embodiments, a dose measurement system for measuring the liquid volume in a container includes a light guide disposed and configured to reflect electromagnetic radiation toward the container. The dose measurement system also includes a light guide disposed and configured to emit electromagnetic radiation into the light guide. A plurality of sensors are located in the apparatus that are optically coupleable to the light guide and are disposed and configured to detect the electromagnetic radiation emitted by at least a portion of the light guide. The apparatus also includes a processing unit configured to receive data representing the portion of the detected electromagnetic radiation from each of the plurality of sensors.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: June 30, 2020
    Assignee: Common Sensing Inc.
    Inventors: Kevin Sihlanick, Richard Whalley, Matthew Legrand, James White, Jeffrey Carothers
  • Patent number: 10670525
    Abstract: The present disclosure provides a portable device for controlling an alcoholic beverage that includes a single light source emitting a monochromatic excitation light beam of a wavelength between 350 and 650 nanometers, a beam splitter to reflect the light beam, a focus and collection lens, and a positioning device to orient the light beam along a direction substantially normal to an outer surface of the container. The positioning device positions the outer surface of the container at a predetermined distance from the focus lens. The device includes a filtering device for filtering fluorescence radiation captured by the focus lens to eliminate wavelengths shorter than or equal to the wavelength of the light beam. A spectrometer module produces a signal corresponding to the measured spectrum of the fluorescence radiation and an analysis module compares the measured spectrum to a reference spectrum.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: June 2, 2020
    Assignees: PERNOD RICARD, CNRS—DIRECTION DE L'INNOVATION ET DES RELATIONS AVEC LES ENTREPRISES (DIRE), Universite de Bordeaux, INSTITUT POLYTECHNIQUE DE BORDEAUX
    Inventors: Pascal Brunerie, Katia Gouret, Benoit Fil, Stephane Verger, Jean-Luc Bruneel, Francois Guillaume, Caroline Bruneel Delhaye
  • Patent number: 10670514
    Abstract: A sensor is provided for detecting and characterizing particles in a fluid. The sensor has a microfluidic channel for receiving the fluid sample, an acoustic transducer module configured to generate a standing wave for concentrating the particles in a region of the microfluidic channel; an optical detection module configured to detect optical signals scattered by the particles upon illuminating the region of the fluid sample with a light source; and a data processing module configured to characterize the particles of the fluid sample based on the optical signals using a classifier.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: June 2, 2020
    Assignee: Water Optics Technology Pte. Ltd.
    Inventors: Ai Qun Liu, Lei Lei, Wei Huang, Shahnawaz Pukkeyil Shamsuddin
  • Patent number: 10661109
    Abstract: A method for detecting an event in or around a building. The method includes recording a baseline signal characteristic that characterizes a wireless signal transmitted between devices in or around the building during a baseline time period and recording a second signal characteristic that characterizes the wireless signal during a second time period after the baseline time period. An event in or around the building is detected in response to a determination that the second signal characteristic is abnormal relative to the baseline signal characteristic, the event degrading the wireless signal during the second time period. An alarm is triggered in response to detecting the event.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: May 26, 2020
    Assignee: Johnson Controls Technology Company
    Inventors: Craig E. Trivelpiece, Robert C. Hall, Jr., Timothy C. Gamroth
  • Patent number: 10655408
    Abstract: A method for analyzing particles that may include collecting an image of a substrate including a size tracer and a plurality of particles thereon; processing the collected image; and outputting a particle analysis of at least a portion of the plurality of particles. In some instances the particles analyzed may be particles involved in wellbore operations.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: May 19, 2020
    Assignee: Schlumberger Technology Corporation
    Inventor: Dina Goloshchapova
  • Patent number: 10645378
    Abstract: A method and apparatus for characterizing a pixel of an image sensor is provided. The apparatus includes a narrowband, temporally incoherent, temporally stable illumination source. The narrowband light source generates a spatially coherent illumination beam. A variable optical attenuator attenuates the illumination beam resulting in an attenuated beam that does not alter the uniformity of the illumination. A focal plane integrator projects, expands, and homogenizes the attenuated beam to illuminate a focal plane of a sensor. Image sequences are collected to generate statistics for characterizing the sensor.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: May 5, 2020
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Aaron Hendrickson, Gary Lohman
  • Patent number: 10641639
    Abstract: A liquid level sensing system provides a removable reservoir incorporating a reflective surface that can be interrogated by a stationary optical sensor in a receptacle receiving the removable reservoir. The optical sensor may detect the presence of the liquid within the reservoir without connection to the reservoir simplifying the process of making the reservoir removable while still allowing sensing of its contents. By aligning the optical axis with the insertion axis of the reservoir sensitive optical alignment problems are minimized.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 5, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Davide Bordignon, Marco Sclip
  • Patent number: 10620130
    Abstract: In a measurement device for measuring fine particulate matter in at least one volume of air for a vehicle, particularly for a motor vehicle, having at least one laser light source, having at least one calibration device assigned to the laser light source, and having at least one measurement chamber, it is provided according to the invention that the at least one laser light source is assigned to at least two measurement chambers, the measurement chambers are formed by segments of air handling ducts to direct the air volumes to be tested, and at least one optical receiving device is assigned to each measurement chamber.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: April 14, 2020
    Assignee: HELLA GMBH & CO. KGAA
    Inventors: Thomas Niemann, Uwe Roeben
  • Patent number: 10613028
    Abstract: Provided are an optical cavity 100 for a gas sensor which has a space therein and a gas sensor using the optical cavity, in which in the space of the optical cavity 100, an elliptical reflective surface 133, which constitutes a part of an ellipse (133, 133a) and reflects the light emitted from a position of one focal point F1 of the ellipse to concentrate the light on the other focal point F2 of the ellipse, is formed, a hyperbolic reflective surface, which constitutes a part of a hyperbola (135a, 135b) having one focal point that coincides with the other focal point of the ellipse, and reflects the light, which is reflected by the elliptical reflective surface and concentrated on the other focal point of the ellipse, to concentrate the light on the other focal point f2 of the hyperbola, is formed, and a hyperbola centerline B-B?, which connects one focal point of the hyperbola and the other focal point of the hyperbola, is inclined toward a side opposite to the elliptical reflective surface by a predetermine
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 7, 2020
    Assignee: ELT SENSOR CORP.
    Inventors: Ihn Lee, Donghwan Kim
  • Patent number: 10571438
    Abstract: At least one baseline structural interrogation of a physical structure is performed in one or more corresponding baseline conditions of the structure. The one or more baseline conditions are stored, and one or more current conditions are sensed. It is determined whether a difference between the one or more current conditions and the one or more baseline conditions satisfies at least one threshold deviation criterion. A current structural interrogation of the structure is performed in response to determining that the difference between the one or more current conditions and the one or more baseline conditions satisfies the least one threshold deviation criterion. An indication that the at least one threshold deviation criterion is not satisfied is output in response to determining that that the difference between the one or more current conditions and the one or more baseline conditions does not satisfy the at least one threshold deviation criterion.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: February 25, 2020
    Assignee: Simmonds Precision Products, Inc.
    Inventors: Arthur Berenbaum, Travis Gang, Peter J. Carini
  • Patent number: 10559877
    Abstract: An apparatus includes a camera lens assembly and a printed circuit board attached to said camera lens assembly. The camera lens assembly may be configured to provide a forward view through a windshield of a vehicle. The printed circuit board generally comprises an antenna, a ground plane, and an image sensor. The antenna is generally disposed on a front surface of the printed circuit board. The ground plane may be disposed either on the front surface or within a layer of the printed circuit board. The image sensor is generally mounted on a back surface of the printed circuit board. The camera lens assembly is generally configured to focus an image of the forward view through the windshield on the image sensor.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 11, 2020
    Assignee: VEONEER US INC.
    Inventor: Bernard DeMersseman
  • Patent number: 10514299
    Abstract: Systems and methods for detecting trace gases utilize a resonance optical cavity and one, two or more coherent light sources coupled to the cavity through one or more cavity coupling mirrors, whereby two or more optical cavities may share the same gas volume.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 24, 2019
    Assignee: LI-COR, Inc.
    Inventor: Serguei Koulikov
  • Patent number: 10495509
    Abstract: An arrangement for measuring process variables of a medium. The arrangement includes a housing embodied for accommodating a measuring apparatus for determining the physical and/or chemical process variable(s), wherein arranged in the housing is at least one window and at least the window contacts the medium, and wherein an oscillatory transducer is provided for transmitting sound waves, characterized in that the window is connected rigidly with the housing, the oscillatory transducer is arranged in a peripheral module having a module housing. The peripheral module is so arranged that the oscillatory transducer transmits the sound waves toward the window, wherein the sound waves pass through the module housing at an exit area, and the peripheral module is so arranged that medium is located in the region of the window and exit area.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: December 3, 2019
    Assignee: Endress+Hauser Conducta GmbH+Co. KG
    Inventors: Benjamin Bertsch, Matthias Grossmann, Thilo Kratschmer
  • Patent number: 10495532
    Abstract: The optical fiber sensing method of the present invention includes steps of: joining heat shrinkable tubes to two ends of a sensing segment of an optical fiber; coupling a fixing element on the heat shrinkable tube below the sensing segment; detachably connecting at least one floating element to the fixing element; placing the floating element into a fluid; and providing an input signal to the sensing segment and generating an output signal after the input signal is processed by the sensing segment, wherein the tensile force applied to the sensing segment would change with variation of the buoyant force upon the floating element, resulting in change of the output signal. Accordingly, the optical fiber sensing method has numerous advantages, including rapid on-site construction, recyclability of components and changeability of design parameters.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: December 3, 2019
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventor: Zheng-Kuan Lee
  • Patent number: 10493204
    Abstract: An aspirator syringe comprising a blood-detecting spectrometer. The syringe may accommodate a standard drug cartridge and may provide manual or automatic movement of a plunger for aspiration and injection. Indicator lights may signal the presence or absence of blood in an aspirate within a drug cartridge. The syringe may also include a detector to read a color of a band on a standard drug cartridge in order to identify a drug.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: December 3, 2019
    Assignee: Imam Abdulrahman bin Faisal University
    Inventor: Saud Abdullah A. Almoumen
  • Patent number: 10480975
    Abstract: The mass flow rate of milk flowing in a pipe in pulsed milk slugs is determined by sampling a signal from a microphone indicative of sonic signals produced by the milk flow. A microprocessor applies a Fast Fourier Transform to the sampled signal to produce the frequency domain of the sampled signal. The microprocessor computes the average energy value of the sampled signal in a relevant frequency band during consecutive monitoring periods. The average energy values are inserted into a calibration equation to convert the average energy value to a mass flow rate. The total mass flow of milk flowing through the pipeline during a period T1-T2 is determined by integrating the determined mass flow rate of milk from T1-T2. Disengagement of a milking cluster from the animal teats during milking is determined when the monitored microphone signal transitions to a continuous relatively high energy noise signal indicative of air.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: November 19, 2019
    Assignee: DAIRYMASTER
    Inventors: John Gerard Daly, Edmond Patrick Harty, Christopher Kinsella
  • Patent number: 10471198
    Abstract: The invention relates to a blood treatment device comprising an attachment unit 7 for attaching a functional unit 1 intended for single use for carrying out the blood treatment. The blood treatment device according to the invention is characterised by a monitoring unit 8 for monitoring the operability and/or the operating state of the functional unit 1, which functional unit comprises at least one light transmitter 17A, 18A and at least one light receiver 17B, 18B. The light transmitter and light receiver are arranged in the monitoring unit 8 according to the invention on one side of the functional unit 1. The arrangement of the light transmitter and light receiver on the same side has the advantage that the monitoring unit 8 can be integrated into the attachment unit 7 of the blood treatment device without any major structural modifications.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: November 12, 2019
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Daniel Gerlach, Jurgen Hacker, Joachim Noack, Peter Scheunert
  • Patent number: 10465846
    Abstract: A monitoring device of an oil flow mixed with air, including a tubular element coupled with at least one first and one second photoelectric sensor that emit a radiation along a first and a second optical line respectively, the tubular element being at least partially transparent to the radiation, the first and the second photoelectric sensor being mounted on the tubular element so that the first and the second optical line are mutually angled.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: November 5, 2019
    Assignee: DROPSA S.P.A.
    Inventor: Walter Divisi
  • Patent number: 10466173
    Abstract: A new liquid flow cell assembly for light scattering measurements is disclosed which utilized a floating manifold system. The assembly operates with minimal stacked tolerances by aligning the cell to the windows within a manifold and independently aligning the cell to the read head directly. This configuration enables the ability to replace the flow cell or the flow cell/manifold assembly within a light scattering instrument without the need to realign the flow through elements with the light scattering illumination source while still maintaining reproducible, quality data. Some embodiments employ wide bore cells which enable the measurement of process analytic technology (PAT) including online monitoring of reactions.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: November 5, 2019
    Assignee: WYATT TECHNOLOGY CORPORATION
    Inventors: David Rahmlow, Matthew Greenstreet, Shiladitya Sen
  • Patent number: 10466226
    Abstract: A measuring device can be used under high pressure and can measure impurity particles contained in a hydraulic oil with high accuracy. A flow path hole opening on two facing surfaces of a housing has flat side surfaces. A cavity opens on the side surface, and a cavity opens on the side surface. Light emitted from a light irradiating section irradiates a hydraulic oil flowing in the flow path hole, via a cell disposed in the cavity in a direction substantially orthogonal to a center axis. Light passing through the hydraulic oil is received by a light receiving section via a cell disposed in the cavity opening on the side surface.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 5, 2019
    Assignee: YAMASHIN-FILTER CORP.
    Inventor: Daichi Shigemaru
  • Patent number: 10416059
    Abstract: A high pressure high temperature spinning drop tensiometer is capable of measuring interfacial tension under varied pressure and temperature conditions, which simulates those present in real petroleum reservoir. Measuring interfacial tension under real petroleum reservoir condition enables a selection of surfactants and other materials for adjusting the interfacial tension to be desired value for optimizing the enhanced oil recovery. The present invention mainly includes a pressure vessel comprising a pair of sight glasses. Two immiscible sample fluids are contained in a glass tube, which is carried by a tube holder rotated by a motor. A microscope and a light source sit on each side of sight glasses for analyzing the drop shape of the sample fluids under varied pressure and temperature conditions.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: September 17, 2019
    Inventor: Hongfeng Bi
  • Patent number: 10408812
    Abstract: The present disclosure is directed to a method of altering chemical properties of an in-process resin used with a 3D printing apparatus. The method includes monitoring the in-process resin using an imaging spectrometer, comparing the in-process resin and a model using one or more spectrums from the imaging spectrometer, and diluting the in-process resin with a diluting resin.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: September 10, 2019
    Assignee: General Electric Company
    Inventors: Stephanie Lynn DePalma, Michael Joseph O'Brien, Brittany Nicole Potter
  • Patent number: 10302762
    Abstract: An electric apparatus comprises a foreign matter detection panel arranged inside a casing and configured to detect contact of foreign matter. The electric apparatus comprises a detection controller which receives a signal outputted from the foreign matter detection panel and judges whether or not foreign matter is in contact with a surface of the foreign matter detection panel. The foreign matter detection panel includes a substrate, a transmitter which generates a surface acoustic wave on the substrate. The foreign matter detection panel includes a reflection array which reflects the surface acoustic wave in a predetermined direction and a receiver which receives the surface acoustic wave which has propagated along the substrate.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: May 28, 2019
    Assignee: FANUC CORPORATION
    Inventor: Kazuyasu Mizusawa
  • Patent number: 10261020
    Abstract: Systems and methods are used to couple an optical sampling probe to a port in a single-use bioreactor bag for in-process monitoring. A combination of re-useable and disposable components maintain precision while reducing costs. A disposable barb with an integral window, received by the port of the reaction vessel, is coupled to a re-useable optic component with a focusing lens. A separate focus alignment tool is used to set the lens position to a precise focal point before placement of the optic component into the barb. The fixture includes a window to simulate the window in a barb component, a target with a known spectral signature, and a probe head coupled to a spectral analyzer. The axial position of the lens is adjusted with respect to the spacer component to maximize the spectral signature from a sample target, whereupon the spacer component is bonded to the lens mount.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: April 16, 2019
    Assignee: Kaiser Optical Systems Inc.
    Inventors: James M. Tedesco, Joseph B. Slater
  • Patent number: 10215699
    Abstract: Embodiments relate to systems and methods for providing airflow within a particulate matter sensor. A particulate matter sensor may comprise an air duct, a light source configured to pass light through the air duct, a extender connected to the light source configured to dissipate thermal energy generated by the light source, and to generate a updraft of airflow into the air duct, a photodetector located in the air duct, and a computing device coupled to the photodetector. The computing device has a processor and a memory storing instructions which, when executed by the processor, determines a mass concentration of particles in the air duct based on an output of the photodetector.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: February 26, 2019
    Assignee: Honeywell International Inc.
    Inventors: Kevin Cai, Ouyang Yang, Anna Liu
  • Patent number: 10189632
    Abstract: A handheld aerosol-generating device may include an emitter configured to emit light, a sensor configured to receive light, and an aerosol chamber configured to hold an aerosol. The emitter may emit light into the aerosol chamber. The sensor may receive light from the aerosol chamber and measure at least one wavelength of the spectrum of the received light. Direct measurement of parameters, and/or the presence, of the aerosol in the aerosol chamber may be enabled, where the direct measurement of parameters of the aerosol in the aerosol chamber may enable optimal operation of an aerosol-generating system that may be the handheld aerosol-generating device.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: January 29, 2019
    Assignee: Altria Client Services LLC
    Inventor: Michel Bessant
  • Patent number: 10179570
    Abstract: The present invention relates to a total reflection type rain sensor using a mirror, which is attached to a glass of a vehicle to detect raindrops falling onto the glass of the vehicle and outputs a signal capable of controlling speed and cycle of a wiper of the vehicle according to the amount and falling frequency of raindrops detected.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: January 15, 2019
    Assignees: ACCENDO MOTION RESEARCH CO., LTD, DREAMTECH CO., LTD
    Inventors: Young-Ho Kim, Jin Sang Lee, Yong Pyo Hong, Nam Joon Yoo
  • Patent number: 10173639
    Abstract: The seat belt indicator light is a supervisory system monitors a seat belt reminder signal within a vehicle. The seat belt indicator light comprises a visual indicator, a control system, and a communication system. The visual indicator monitors the seat belt reminder signal and illuminates the externally visible signal when the seat belt reminder signal is illuminated. The logic module monitors and logs status of the seat belt reminder signal while the vehicle is in operation. The communication system provides remote and local wireless communication services between the control system and an appropriate authority.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: January 8, 2019
    Inventor: Christopher Baumann
  • Patent number: 10151617
    Abstract: A method for monitoring an oil level in a machine includes transmitting a light beam into an optical system to be reflected or refracted to a receiver to generate a reception signal. The light beam is emitted at a set transmission power, and an oil deficiency is recognized when the reception signal exceeds a predefined level value. The transmission power of the light beam is settable between a minimum and a maximum transmission power, and contamination of the optical system is analyzed by: (a) the transmitter transmits a first light beam at the maximum transmission power to generate a first reception signal, and (b) analyzing the difference between the first reception signal and a second reception signal generated by a light beam at less than the maximum transmission power, the magnitude of the difference representing a measure of the degree of contamination of the optical system.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: December 11, 2018
    Assignee: KRIWAN INDUSTRIE-ELEKTRONIK GMBH
    Inventors: Christian Ellwein, Christoph Leja, Franz Stoll
  • Patent number: 10144027
    Abstract: A hand cleaning liquid dispenser including a fluid level gauging mechanism with a plurality, preferably three or more, vertically spaced optical sensors located closely adjacent an external of a side wall of the reservoir to each receive electromagnetic radiation transmitted through the side wall from within the reservoir with the electromagnetic radiation sensed originating from an emitter directing the electromagnetic radiation preferably through the reservoir downwardly.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: December 4, 2018
    Inventors: Heiner Ophardt, Rainer Duske, Sascha Korthauer, Michael Stephan
  • Patent number: 10113964
    Abstract: An optical detection apparatus for measuring detection chambers of a specimen cartridge includes: a light source unit including light sources which are arranged along a scan line on which the detection chambers are aligned to be scanned, and configured to emit light rays to the detection chambers; and an optical detector configured to detect the light rays having passed through corresponding detection chambers disposed on the scan line. The light sources include main wavelength light sources which are used for measuring samples disposed in the detection chambers, and a sub-wavelength light source which is used for correcting a measuring error.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: October 30, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeong-bae Yeo, Hyun-soo Jang
  • Patent number: 10083630
    Abstract: A device for monitoring the position of a plunger member slidingly engaged with a main body of a syringe includes a housing structured to be selectively coupled to the main body in a readily removable manner and a monitoring system disposed at least partially on or in the housing. The monitoring system is structured to detect the absolute position of the plunger member with respect to the main body in a manner which does not require any mechanical linkage with the plunger member.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: September 25, 2018
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Joseph Thomas Samosky, Christopher James Siviy, Michael Joseph Randazzo, Raymond James Van Ham, Ahmed Ismail Kashkoush, Zhannetta Vyacheslavovna Gugel, Shi Tong Liu
  • Patent number: 10019621
    Abstract: A communication system and a method of identifying a target vehicle using application software on a mobile device. The method includes the steps of receiving at the mobile device a wireless signal transmitted from a transmitter at the target vehicle, wherein the wireless signal is received using an imaging detector in the mobile device; identifying that the target vehicle is a source of the wireless signal based on characteristics of the wireless signal; and in response to the identification, displaying to a user on a display of the mobile device an indication of an identity of the target vehicle.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: July 10, 2018
    Assignee: General Motors LLC
    Inventor: Richard L. Elswick
  • Patent number: 10012548
    Abstract: A passive infrared sensor having a radiation capture component may be housed within a sensor device. The device may also house radiation emission components, such as light emitting diodes, in proximity to the capture component. Electronic circuitry within the device may generate a signal that causes the emission components to emit radiation that includes wavelengths in the infrared spectrum. The infrared radiation may be captured at the capture component. Characteristics of a signal generated by the capture component may be compared to test characteristics. Based on this comparison, it may be determined that the passive infrared sensor is not operating properly.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: July 3, 2018
    Assignee: Google LLC
    Inventors: Evan Witty, Andrew Dai
  • Patent number: 10006858
    Abstract: A portable environment quality monitor having an enclosure to enclose and protect the monitor from an environment and for attaching to a user's clothing or jewelry. The enclosure includes a controlled airflow intake for receiving air from the environment in which the monitor is worn for forming an airflow sampling path and for laminarizing the airflow in the sampling path. A sensor, having a sensing region that directs the laminar airflow into the sensing region. A processor is connected to a light scattering aerosol spectrometer (LSAS) that is configured to receive, process and translate photodiode current peaks into particle counts and sizes detected in the air. The processor is also coupled to a memory for storing data corresponding to the particle counts and sizes detected in the environment. The processor further includes an interface to communicate with a host for allowing a user to monitor and track environment conditions.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: June 26, 2018
    Inventors: Kevin R. Hart, Taylor Cooper, Vlad Lavrovsky, Justin Lam
  • Patent number: 9959748
    Abstract: The system and method provide for the monitoring and trending the rate at which fire detection devices get dirty. This information is used to determine which devices are clogged or getting clogged and to establish that the chambers are open to air flow because they are accumulating dirt over time. Air flow through the detection chamber is proven using this analysis. Further self-testing is also employed for the fire detection devices by including modules that simulate the smoke interference with the light. This can be accomplished in two ways. In one example, light from the chamber light source can be reflected toward the scattered light photodetector to simulate alarm conditions. In another example, an additional chamber light source can be added to the detection chamber that can generate light to simulate alarm conditions.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 1, 2018
    Assignee: Tyco Fire & Security GmbH
    Inventor: Anthony Philip Moffa
  • Patent number: 9952135
    Abstract: A portable, stand-alone microfluidic interrogation device including a microprocessor and a touch-screen display. The touch-screen display can receive one or more user input to select a particular particle interrogation procedure, and subsequently show interrogation results. A microfluidic path extending through the interrogation device includes alignment structure that defines an interrogation zone in which particles carried in a fluid are urged toward single-file travel. Operable alignment structure may define sheath-, or non-sheath fluid flow. Desirably, a portion of the alignment structure is removable from the device in a tool-free procedure. The device may operate under the Coulter principle, and/or detect Stokes' shift phenomena, and/or other optically-based signal(s).
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: April 24, 2018
    Assignee: E. I. Spectra, LLC
    Inventor: Harold E. Ayliffe
  • Patent number: 9910028
    Abstract: Disclosed is a point of care sepsis assay comprising a disposable assay cartridge with a sample inlet for a blood sample, a filter to isolate blood plasma, a source of multivalent cations to cause a turbidity change in the plasma sample and a transparent window to measure the change in turbidity and the use of said assay in the diagnosis of sepsis.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 6, 2018
    Assignee: Sepsis Limited
    Inventor: Anthony Nicholls
  • Patent number: 9891166
    Abstract: Fiber optic sensors include sensor regions in which an optical phase is modulated by an analyte to be detected. A long period fiber grating (LPG) is coupled to a coating that is arranged to selectively interact with the analyte. The resulting phase change is detected based on a transmission spectrum associated with the LPG so that analyte is detected and quantified. A plurality of such sensors is distributed along a fiber to form a sensor array that can be situated to detect analyte at a plurality of discrete regions.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: February 13, 2018
    Inventors: Peter M. Wild, Thomas M. Fyles, David A. Risk, David A. Sinton, Bo Bao, Luis Melo, Martin B. G. Jun, Geoff Burton
  • Patent number: 9891155
    Abstract: A system for measuring soil constituents having coulter comprising an electromagnetic radiation detector, a source of electromagnetic radiation, and a window transparent to electromagnetic radiation, the source emits radiation through said window to the soil, and the detector receives radiation through said window, reflected from the soil. Typically the source is broad band so the detector provides continuous spectra over the range. The source may be quasimonochromatic to provide Raman scattering, which will also provide continuous spectra over the range. These spectra can be subjected to multivariate analysis and compared to spectra of known constituents to identify the presence and concentration of these constituents.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: February 13, 2018
    Assignee: 7108789 Manitoba Inc.
    Inventors: Erik Eising, David A. Prystupa
  • Patent number: 9845073
    Abstract: With a sensor device for recording moisture on a window pane with a transmitter and a receiver and an optical unit arranged between the transmitter and the receiver, wherein the optical unit includes an optical input unit facing the transmitter, an optical output unit facing the receiver and a coupling-in and coupling-out region on the side of the window pane, the coupling-in and coupling-out region is optically separated from the optical input unit and the optical output unit such that the electromagnetic waves emitted by the transmitter are refracted. A particularly compact constructional design is achieved thereby.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: December 19, 2017
    Assignee: HELLA KGAA HUECK & CO.
    Inventor: Alexander Gohmann
  • Patent number: 9816808
    Abstract: The invention relates to a measuring device for acquiring surface data and/or interfaces of a workpiece to be processed by a laser processing device. The laser processing device comprises a laser source and a processing head which is configured to provide at least one high-energy processing beam, in particular a laser beam. The laser source and the processing head are interconnected by an optical fiber and the measuring device comprises a scanning device configured as an optical coherence tomograph for surface scanning and/or interface scanning of the workpiece. The optical fiber which interconnects the laser source and the processing head forms a component of the scanning device.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: November 14, 2017
    Assignee: LESSMÜLLER LASERTECHNIK GMBH
    Inventors: Eckhard Lessmüller, Christian Truckenbrodt
  • Patent number: 9778239
    Abstract: This invention relates to a method for analyzing a liquid when inside a container in order to detect counterfeiting or adulteration of the liquid, the container being at least partially transparent to visible light.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: October 3, 2017
    Assignee: University of Leicester
    Inventor: George William Fraser
  • Patent number: 9719138
    Abstract: This invention provides substrates for use in various applications, including single-molecule analytical reactions. Methods for propagating optical energy within a substrate are provided. Devices comprising waveguide substrates and dielectric omnidirectional reflectors are provided. Waveguide substrates with improved uniformity of optical energy intensity across one or more waveguides and enhanced waveguide illumination efficiency within an analytic detection region of the arrays are provided.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: August 1, 2017
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Cheng Frank Zhong, Paul Lundquist, Mathieu Foquet, Jonas Korlach, Hovig Bayandorian
  • Patent number: 9709547
    Abstract: A sensor unit is disclosed for determining properties of a lubricant; for example, a lubricating grease in a rolling bearing. A machine element may include the sensor unit and a machine assembly may include the machine element. The sensor unit includes a sensor housing having a window which can be aligned to the lubricant. A transmitter for emitting electromagnetic radiation through the window and a receiver for receiving electromagnetic radiation which passes through the window are located in the sensor housing. Evaluating electronics arranged in the sensor housing are electrically connected at least to the receiver. The evaluating unit is designed to generate at least one digital sensor signal. The sensor unit further includes an electrical connection, which is led through the sensor housing and electrically connected to the evaluating electronics in the sensor housing.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: July 18, 2017
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Martin Kram, Thomas Drescher, Stephan Neuschaefer-Rube, Andreas Bill