Patents Examined by Shawn Decenzo
  • Patent number: 10444004
    Abstract: The phase shift interferometer is configured to measure the shapes of measurement objects by acquiring a plurality of images of interference fringes while shifting the phases of the interference fringes. The interference fringes are provided with a phase difference of 90° relative to each other utilizing polarization of light. Images of the interference fringes are captured by two respective cameras while, in accordance with a conventional phase shift method, mechanically displacing a reference surface or a reference optical path to shift the phases. The phases of the interference fringes are calculated independently from the respective images acquired by the cameras and an average of the two phase calculation results is calculated.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: October 15, 2019
    Inventor: Kazuhiko Kawasaki
  • Patent number: 10444113
    Abstract: A method of measuring crosstalk of a multicore fiber, the method including capturing an emitted light pattern at an end portion of a dummy fiber and obtaining a correlation data between a power of the light incident on the dummy fiber and the emitted light pattern, irradiating one core of the multicore fiber with a light through the dummy fiber, and measuring a power of a reference light emitted from the core, capturing a crosstalk light emitted from a different core different from the core on which the light is incident under a state where the reference light is masked, and estimating a power of the crosstalk light from a captured data of the crosstalk light and the correlation data, and calculating the crosstalk from the power of the reference light and the power of the crosstalk light.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 15, 2019
    Assignee: FUJIKURA LTD.
    Inventors: Shota Saito, Katsuhiro Takenaga
  • Patent number: 10444074
    Abstract: A method and a system are provided to measure transmittance or reflectance of a color specimen by using a transformation matrix obtained from the measurement values of a series of known transmittance or reflectance calibration color standards and multiple flashes from different illumination sources. A color spectrum can be determined with reduced error by calculating the reflectance spectra of an object using measurement matrices obtained under at least two illuminants and the transformation matrix.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 15, 2019
    Assignee: DATACOLOR INC.
    Inventors: Zhiling Xu, Hong Wei, Taeyoung Park
  • Patent number: 10436709
    Abstract: A device for calibrating an in-line sensor is disclosed, including a housing having a first aperture and a second aperture arranged along an optical path extending through the housing, a first filter and a second filter disposed within the housing such that the filters are moveable from an operating position to a calibration position. In the calibration position the filters are arranged in the optical path and the housing includes a connection adjacent each of the first aperture and the second aperture, the connection structured to enable the housing to be reversibly attached to a flow cell, a detector and a light source of an in-line sensor.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: October 8, 2019
    Assignee: Endress+Hauser Conducta Inc.
    Inventors: Iouri Kompaniets, Budi Komala, Paul Mark Gonda Cacha
  • Patent number: 10436614
    Abstract: An example system includes a photo detector and a phase detector. The photo detector may detect a facet of a rotating mirror, the rotating mirror having at least two facets. The phase detector may detect a phase of a motor driving rotation of the rotating mirror. The example system may also include a processor to determine a phase relationship between the facet detected by the photo detector and the phase of the motor detected by the phase detector.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 8, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Dan Rothenbuhler
  • Patent number: 10433730
    Abstract: An optical coherence tomographic image generation apparatus includes: a probe including a two-dimensional scanning mechanism therein reflecting a beam incident from one of sides of the probe while a position of the beam is shifted by time-division drive; an optical unit that detects an optical coherent light created by interference between the reference beam and scattered light returned by reflection from the measuring object irradiated through the probe with the measurement beam to generate an optical coherent tomographic image from the detection signal of the coherent light acquired in a time base in one of first or second operation modes. In the first operation mode, scanning is performed parallel on an optical irradiation plane at the measuring object in a first direction. In the second operation mode, scanning is performed parallel on the optical irradiation plane at the measuring object in a second direction orthogonal with the first direction.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: October 8, 2019
    Assignee: The Yoshida Dental Manufacturing Company, Ltd.
    Inventor: Hideo Kakuma
  • Patent number: 10429171
    Abstract: A sensor for a vibration imaging system is provided. The sensor includes a transmitter configured to project an array of laser beams onto a surface of an object such that neighboring beams in the array of laser beams are frequency shifted relative to each other, an interferometer configured to mix radiations reflected from neighboring points on the surface of the object such that the radiations from neighboring points interfere with one another, a photodetector array configured to produce output signals representative of the interfering beams, a demodulator configured to demodulate the output signals, and a computing device configured to calculate a deformation profile for the object based on the demodulated output signals.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: October 1, 2019
    Inventor: Aranchuk Vyacheslav
  • Patent number: 10429246
    Abstract: The panoramic-reconstruction temporal imaging (PARTI) system is a single-shot optical waveform measurement apparatus that achieves scalable record length and sub-picosecond resolution simultaneously for ultrafast non-repetitive waveform characterization, in analogy with the wisdom of stitching multiple mosaic images to achieve larger-field-of-view in the spatial domain. It consists of a high-fidelity optical buffer, a low-aberration time magnifier and synchronization-control electronics. For specific measurement circumstances, the PARTI system can also be carried out based on a passive optical buffer, which reduces the system complexity. The PARTI system is configured for real-time single-shot characterization of non-repetitive optical dynamic waveform that evolves over a time scale much larger than that of its ultrafast temporal details, i.e., optical dynamics with large time-bandwidth product.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: October 1, 2019
    Assignee: The University of Hong Kong
    Inventors: Kenneth Kin Yip Wong, Bowen Li
  • Patent number: 10429291
    Abstract: Disclosed is a system and method for characterizing optical filters in a flow cytometer and optionally checking the operation of detectors in the flow cytometer. In some embodiments, the system may utilize an LED board having an opening through which the fluorescence and side scatter beams, rays, or images pass and light emitting diodes around the opening that emit light having different spectral profiles. The different spectral profiles allow the system to identify the optical filters that are placed in the flow cytometer, to verify detector operation, to assist in instrumentation troubleshooting, and to provide a quantitative reference for detector comparison.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: October 1, 2019
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Daniel Nelson Fox, Susan Hunter
  • Patent number: 10420895
    Abstract: A data collection device for attachment to an injection device, such as an injector pen, includes a sensor arrangement to detect movement of a movable component of the injection device relative to the data collection device during delivery of a medicament by the injection device, and a processor arrangement configured to, based on said detected movement, determine a medicament dosage administered by the injection device. The processor arrangement may monitor the time that has elapsed since the medicament dosage was administered, and control a display to show the mediacament dosage and elapsed time to provide a memory aid to the user. In an example embodiment, the sensor arrangement includes an optical encoder and the movable component includes a plurality of light barrier formations. The movable component may be a number sleeve that provides a visual indication of a dose programmed into the injection device.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: September 24, 2019
    Assignee: Sanofi-Aventis Deutschland GMBH
    Inventors: Frank Erbstein, Paul Richard Draper, Robert Frederick Veasey, David Aubrey Plumptre, Joseph Butler
  • Patent number: 10422700
    Abstract: In order to align the various components of an instrument, the beam produced by a spectrally-controlled light source is aligned with the optical axis of the instrument and the first component is placed at its predetermined position along the optical axis. Then, configuring the spectral modulation of the source such that one surface of the component is used as the reference surface, the spectrum of the source is modulated so as to produce a correlogram formed by reflections from the reference surface and from the other surface of the optical component. The correct alignment of the component is determined by adjusting its position so as to cause the correlogram to conform to the bullseye configuration that meets predetermined design parameters. The procedure is repeated with each other component of the instrument, the alignment of each component being based on interference fringes created independently of other components.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: September 24, 2019
    Inventor: Artur Olszak
  • Patent number: 10422734
    Abstract: Method of characterizing particles suspended in a fluid dispersant by light diffraction, comprising: obtaining measurement data from a detector element, the detector element being arranged to measure the intensity of scattered light; identifying a measurement contribution arising from light scattered by inhomogeneities in the dispersant; processing the measurement data to remove or separate the measurement contribution arising from light scattered by inhomogeneities in the dispersant; calculating a particle size distribution from the processed measurement. The detector element is one of a plurality of detector elements from which the measurement data is obtained. The detector elements are arranged to measure the intensity of scattered light at a plurality of scattering angles, the plurality of scattering angles distributed over a plurality of angles about an illumination axis.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: September 24, 2019
    Assignee: Malvern Panalytical Limited
    Inventors: Rhys Poolman, David Stringfellow, Nigel Lightfoot, Jason Cecil William Corbett
  • Patent number: 10416290
    Abstract: The present disclosure relates to systems and methods that facilitate light detection and ranging operations. An example transmit block includes at least one substrate with a plurality of angled facets. The plurality of angled facets provides a corresponding plurality of elevation angles. A set of angle differences between adjacent elevation angles includes at least two different angle difference values. A plurality of light-emitter devices is configured to emit light into an environment along the plurality of elevation angles toward respective target locations so as to provide a desired resolution and/or a respective elevation angle. The present disclosure also relates to adjusting shot power and a shot schedule based on the desired resolution and/or a respective elevation angle.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: September 17, 2019
    Assignee: Waymo LLC
    Inventors: Benjamin Ingram, Pierre-Yves Droz, Luke Wachter, Scott McCloskey, Blaise Gassend, Gaetan Pennecot
  • Patent number: 10416391
    Abstract: The ends of sensing and interrogating multicore fibers are brought into proximity for connection in a first orientation with one or more cores in the sensing fiber being paired up with corresponding one or more cores in the interrogating fiber. Optical interferometry is used to interrogate at least one core pair and to determine a first reflection value that represents a degree of alignment for the core pair in the first orientation. The relative position is adjusted between the ends of the fibers to a second orientation. Interferometry is used to interrogate the core pair and determine a second reflection value that represents a degree of alignment for the core pair in the second orientation. The first reflection value is compared with the second reflection value, and an aligned orientation is identified for connecting the sensing and interrogating fibers based on the comparison.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 17, 2019
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Mark Froggatt, Eric Sanborn, Jeffrey Lacroix
  • Patent number: 10416081
    Abstract: Optical systems and methods for spectroscopy are described. The optical system may be particularly suitable for Raman spectroscopy and includes a multispectral excitation source, designed to emit monochromatic excitation radiation successively at at least two different excitation wavelengths along a common beam axis; an elongated flow volume with a longitudinal axis, designed to direct a particle flow along the longitudinal axis; an excitation beam path, designed to irradiate the monochromatic excitation radiation into the flow volume at a first position and the second position that are located in the flow volume and the first position is spaced apart from the second position; and a detection device, designed to wavelength-selectively filter and detect a portion of a radiation scattered from the first position at a first filter wavelength and to wavelength-selectively filter and detect a portion of a radiation scattered from the second position at a second filter wavelength.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: September 17, 2019
    Assignee: Forschungsverbund Berlin e.V.
    Inventors: Bernd Sumpf, Martin Maiwald
  • Patent number: 10416005
    Abstract: An optical fiber interrogator for interrogating optical fiber that includes fiber Bragg gratings (“FBGs”). The interrogator includes a light source operable to emit phase coherent light, amplitude modulation circuitry optically coupled to the light source and operable to generate pulses from the light, and control circuitry communicatively coupled to the amplitude modulation circuitry that is configured to perform a method for interrogating the optical fiber. The method includes generating a pair of light pulses by using the amplitude modulation circuitry to modulate light output by the light source without splitting the light.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 17, 2019
    Assignee: Hifi Engineering Inc.
    Inventors: Brian H. Moore, Walter Jeffrey Shakespeare, Phillip William Wallace, Viet Hoang, Tom Clement
  • Patent number: 10416040
    Abstract: Characterizing a first OLTS includes connecting a first test cable directly to a second power meter of the first OLTS, connecting the first test cable to a second test cable, and connecting the second test cable directly to a connection port of a second OLTS. The method also includes determining a first characterization power of the first OLTS by measuring an optical power of light transmitted from a light source of the second OLTS with the second power meter of the first OLTS. The method further includes disconnecting a first test cable from the second power meter of the first OLTS, connecting the first test cable directly to a connection port of the first OLTS, and determining a second characterization power of the first OLTS by measuring an optical power of light transmitted from the light source of the second OLTS with the first power meter of the first OLTS.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: September 17, 2019
    Assignee: AFL Telecommunications LLC
    Inventors: Scott Prescott, Bin Liu
  • 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: 10408739
    Abstract: A water quality sensor includes a housing including a light transmissive bucket mounted in an electrical washing appliance and a light transmissive inner barrel mounted in the bucket, an actuation module mounted in the inner barrel for detecting a water quality of a washing solution in the electrical washing appliance. Thus, if the bucket is cracked during manufacturing or due to a collision, the actuation module can still be well protected by the inner barrel, so that the washing solution in the electrical washing machine does not directly flow into and contact with the actuation module to cause an accidental short circuit of the circuit substrate of the actuation module, improving the water resistance and service life of the water quality sensor.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: September 10, 2019
    Assignee: SOLTEAM OPTO, INC.
    Inventors: Chun-Yen Wu, Fu-Min Liang, Cheng-Ting Wu, Chia-Hao Chang, Chin-Feng Chen
  • Patent number: 10412286
    Abstract: A multicamera imaging system includes multiple imaging subsystems. Each subsystem includes imaging optics, an optical filter, an optional shutter, a digital imaging sensor, and an analog-to-digital converter. After optional scaling, image displacement, keystone and other corrections, the captured images are aligned to result in a multi-layer registered image. Illumination metrics of individual pixels of the registered image are then calculated. The spatial distribution of the optical illumination properties of planar objects are measured, including colorimetric, photometric, radiometric, and spectroradiometric characterization and calibration of digital image displays and radiant scenes.
    Type: Grant
    Filed: March 31, 2018
    Date of Patent: September 10, 2019
    Inventors: Timothy Moggridge, Chad Greene