Patents Examined by Maurice Smith
  • Patent number: 10281256
    Abstract: An agile optical imaging system for optical coherence tomography imaging using a tunable source comprising a wavelength tunable VCL laser is disclosed. The tunable source has long coherence length and is capable of high sweep repetition rate, as well as changing the sweep trajectory, sweep speed, sweep repetition rate, sweep linearity, and emission wavelength range on the fly to support multiple modes of OCT imaging. The imaging system also offers new enhanced dynamic range imaging capability for accommodating bright reflections. Multiscale imaging capability allows measurement over orders of magnitude dimensional scales. The imaging system and methods for generating the waveforms to drive the tunable laser in flexible and agile modes of operation are also described.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: May 7, 2019
    Assignees: THORLABS, INC., PRAEVIUM RESEARCH, INC.
    Inventors: Alex Ezra Cable, Vijaysekhar Jayaraman, James Jiang, Benjamin Potsaid
  • Patent number: 10253346
    Abstract: A Raman spectroscopy based system and method for examination and interrogation provides a method for rapid and cost effective screening of various protein-based compounds such as bacteria, virus, drugs, and tissue abnormalities. A hand-held spectroscope includes a laser and optical train for generating a Raman-shifting sample signal, signal processing and identification algorithms for signal conditioning and target detection with combinations of ultra-high resolution micro-filters and an imaging detector array to provide specific analysis of target spectral peaks within discrete spectral bands associated with a target pathogen.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: April 9, 2019
    Assignees: Seraph Biosciences, Inc., Wayne State University
    Inventors: Gregory William Auner, Charles Shanley, Michelle Brusatori, Tara Twomey, David Sant
  • Patent number: 10240979
    Abstract: A pulse generator generates high voltage discharge pulses in a manner that may be controlled and monitored. Pulse generator operation may be monitored to measure characteristics associated with pulse generator operation and to produce pulse generator data representative of those characteristics. Pulse generator operation may be monitored by monitoring the discharge pulses produced by the pulse generator and/or the charging of energy storage elements within the pulse generator in preparation for a subsequent discharge pulse. The pulse generator data may be used, for example, to identify pulse generator wear or degradation, to identify problems with pulse generator operation, and/or to control pulse generator operation for improved performance. The pulse generator may also be configured and controlled to generate a high-voltage initiation pulse to initiate a subsequent discharge pulse while being contained within a relatively small form factor.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: March 26, 2019
    Assignee: Cascodium Inc.
    Inventors: Patrick J. Cobler, Scott A. Rhodes, Paul D. Butler, Neal R. Butler, Michael R. Dynok
  • Patent number: 10228235
    Abstract: A device for measuring a gap and a step between two panels is disclosed. The device includes a laser radiating unit for emitting laser beam over a first panel and a second panel and in a first linear pattern across a gap between a first panel and a second panel. The device further includes a lighting unit for emitting a non-laser light beam over a first panel and a second panel and in a second linear pattern overlapping the first pattern across the gap between the first and the second panel. The system further comprises a camera for capturing images of the first linear pattern of laser and the second linear pattern of non-laser light projected over the first panel and the second panel. The system analyzes at least one image captured from the camera and estimates a width of the gap between the first and second panels.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: March 12, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Sangkyu Park
  • Patent number: 10222336
    Abstract: A system includes an illumination source, a detector and a processor. The detector acquires spectral measurements of a sample under test under at least one varying condition. The processor processes the measurements to generate at least one spectral representation that includes Raman spectra and at least one spectral representation that includes non-Raman spectra.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 5, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Huei Pei Kuo, Zhiyong Li, Shih-Yuan Wang, Alexandre M Bratkovski, Steven Barcelo, Ansoon Kim, Gary Gibson, Mineo Yamakawa
  • Patent number: 10215558
    Abstract: A rotation angle measuring device includes a light source for generating a first light beam with a first polarization direction and a second light beam with a second polarization direction; a first beam splitter for splitting the first light beam and the second light beam to generate a third light beam and a fourth light beam; an image sensor for sensing a first interference pattern generated by the first and second light beams passing through a first displacement measurement module, and sensing a second interference pattern generated by the third and fourth light beams passing through a second displacement measurement module; and a processing unit for calculating two displacement values at two different positions on a measured object according to the first and second interference patterns, in order to further calculate a rotation angle of the rotation angle measuring device relative to the measured object along a first axis.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: February 26, 2019
    Assignee: NOPORVIS CO., LTD.
    Inventors: Wei-Hung Su, Hui-Hung Lin, Kuo-Kai Hung, Chun-Neng Chan, Lu-Yu Wang
  • Patent number: 10215633
    Abstract: A miniature spectrometer comprises an input port, a light sensor, a miniature diffraction optical grating, an optical grating accommodation slot, a cushion, and an affixing plate. The miniature spectrometer may further comprise a waveguide device, and the optical grating accommodation slot is positioned in a space defined by an opening of the waveguide device. The input port receives an optical signal which proceeds in the waveguide device. The miniature diffraction optical grating separates the optical signal into numerous spectral components to be projected onto the light sensor. The cushion is stacked on the miniature diffraction optical grating, with both disposed in the optical grating accommodation slot. The affixing plate is disposed on the waveguide device to apply a compressing force on the cushion to affix the miniature diffraction optical grating in the optical grating accommodation slot.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: February 26, 2019
    Inventor: Cheng-Hao Ko
  • Patent number: 10215621
    Abstract: The present technology relates a transformer condition monitoring system including a light source configured to produce an emitted light beam. A plurality of optical sensors are configured to be positioned at a plurality of separate locations on a transformer, receive the light beam from the light source, and generate product light beams from the emitted light beam. A detector is positioned to receive the product light beams from the optical sensors and is configured to measure intensity values of the product light beams for each of the optical sensors. A computing device is coupled to the detector and includes a processor coupled to a memory. The processor executes programmed instructions stored in the memory to determine, based on the measured intensity values for the product light beams for the optical sensors, at least a displacement value, a current value, and a voltage value for the transformer.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 26, 2019
    Assignee: Micatu Inc.
    Inventors: Michael Oshetski, Atul Pradhan
  • Patent number: 10215700
    Abstract: A cancer-related substance in blood or a biological sample can be detected in a selective manner, so it becomes possible to determine the occurrence of cancer by observation of fluorescent image of a crystal of the censor related substance or a coagulated state of the crystal on a plasmonic chip. In addition, the state of chemical modification of a histone tail can be determined by a Raman spectrum analysis. Furthermore, the location of the cancer-related substance aggregated on a substrate cannot be determined with naked eyes. Then, as a second aspect of the present invention, a method for diagnosing a cancer disease is provided, said method being characterized by firstly identifying the location of the region of a crystal by observing fluorescent image on a microscope, and then irradiating the crystal, with laser beam to analyze with respect to the chemical modification of a histone tail and a remodeling factor.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: February 26, 2019
    Assignee: MYTECH CO., LTD.
    Inventors: Yuki Hasegawa, Katsuyuki Hasegawa
  • Patent number: 10215629
    Abstract: The present invention discloses a handheld optical radiation meter and a correction method thereof. The handheld optical radiation meter has a photometric measurement module, a spectral measurement module and a screen. The spectral quantities of the spectral measurement module are employed to correct the spectral mismatch error of the photometric measurement module. With simple configuration, the present invention can realize high accuracy photometry and chromaticity measurement within a wide-span dynamic range, and has the characteristics of complete test functions, high measurement accuracy, convenient operation, low cost, etc.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: February 26, 2019
    Assignee: EVERFINE PHOTO-E-INFO CO., LTD.
    Inventor: Jiangen Pan
  • Patent number: 10217653
    Abstract: A substrate-treating apparatus according to an example embodiment of the inventive concepts includes a support unit on which a substrate is loaded, an optical measurement unit providing light to the substrate to obtain image data and checking whether the substrate is abnormal or not, based on the image data, and a control unit controlling the support unit and the optical measurement unit. The control unit processes the image data transmitted from the optical measurement unit. The control unit includes an interlock control part performing an interlock operation interrupting a process performed on the substrate if an abnormal signal is detected from the image data.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dongseok Baek, Jin Shin, Sungman Kim
  • Patent number: 10215689
    Abstract: A derivative spectroscopy system for achieving a tunable resolution of 2 nm or less in resolving spectral components of an input optical signal is provided so as to estimate derivative spectra of the input optical signal based on the resolved spectral components. In the system, a first dispersive-element structure spectrally decomposes the input optical signal into subband signals. A second dispersive-element structure receives part or all of the subband signals and spectrally decomposes the received subband signals to plural spectral components. A material having a temperature-variant refractive index is used to build the second dispersive-element structure, enabling a shift of center wavelength of each spectral component as small as 2 nm of less upon changing a temperature of the second dispersive-element structure.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: February 26, 2019
    Assignee: Hong Kong Applied Science and Technoloy Research Institute Company Limited
    Inventors: Jiaqi Wang, Chun Zhang, Wei Mong Tsang
  • Patent number: 10215640
    Abstract: The present invention discloses a method for performing color measurement using a standard light source color matching observation box. The method comprises: arranging a halogen tungsten lamp and a light filter in the color matching observation box for cooperation, wherein the light ray of the halogen tungsten lamp emits a main body radiation light ray through the light filter; arranging a plurality of narrow-wave LED light sources of different light-emitting wavelengths to emit a compensation light ray; mixing the main body radiation light ray and the compensation light ray in the color matching observation box into a mixed light ray that uniformly simulates a standard D illuminant; and performing a color measurement on a measured object in the color matching observation box by the mixed light ray.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: February 26, 2019
    Assignee: WENZHOUJIAYI INSTRUMENTS CO., LTD
    Inventors: Jiayi Qiu, Changjun Li, Guolin Lei, Jianda Shi, Yingsheng Zhan
  • Patent number: 10215839
    Abstract: Embodiments herein disclose a pose detection device for a movable body and a location-based supplemental service providing system. The pose detection device includes a first polarization unit and a second polarization unit positioned to have transmission axis difference values different from each other, wherein the first polarization unit and the second polarization unit receiving light emitted from a polarized light source located beyond and apart from the first polarization unit and the second polarization unit. Further, the pose detection device includes a first illuminometer measures positioned below the first polarization unit and a second illuminometer positioned below the second polarization unit.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: February 26, 2019
    Assignee: Polariant, Inc.
    Inventors: Hyouk Jang, Hyeon Gi Jeon, Youngjae Choi
  • Patent number: 10215557
    Abstract: Disclosed are a distance image acquisition apparatus and a distance image acquisition method capable of acquiring a distance image with satisfactory accuracy based on a first pattern projected from a host apparatus even in a case where patterns of structured light having the same shape are projected simultaneously from the host apparatus and another apparatus.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: February 26, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Hiroaki Takao, Takeshi Misawa, Takeshi Kamiya, Tomonori Masuda, Koudai Fujita
  • Patent number: 10215551
    Abstract: An agile optical imaging system for optical coherence tomography imaging using a tunable source comprising a wavelength tunable VCL laser is disclosed. The tunable source has long coherence length and is capable of high sweep repetition rate, as well as changing the sweep trajectory, sweep speed, sweep repetition rate, sweep linearity, and emission wavelength range on the fly to support multiple modes of OCT imaging. The imaging system also offers new enhanced dynamic range imaging capability for accommodating bright reflections. Multiscale imaging capability allows measurement over orders of magnitude dimensional scales. The imaging system and methods for generating the waveforms to drive the tunable laser in flexible and agile modes of operation are also described.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: February 26, 2019
    Assignees: Praevium Research, Inc., Thorlabs, Inc.
    Inventors: Benjamin Michael Potsaid, James Yi Jiang, Vijaysekhar Jayaraman, Scott Barry, Anjul M. Davis Loiacono, Alex Ezra Cable
  • Patent number: 10215630
    Abstract: According to various embodiments, a Raman spectroscopy method is provided for reduction of background fluorescence signal. The method may utilize a high speed optical chopper configured to periodically interrupt the laser light beam between the laser light source and the sample; and using the high speed optical chopper to provide a synchronized time-gated optical window for receiving mostly Raman signal while rejecting most or some of the fluorescence signal transmitted from the sample in response to the laser light beam before reaching the sensor.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: February 26, 2019
    Assignee: EINST TECHNOLOGY PTE LTD
    Inventors: Wee Lee Tok, Eddie Khay Ming Tan
  • Patent number: 10215641
    Abstract: A color measuring apparatus includes a measurement assembly which includes at least one illumination assembly for applying substantially parallel illumination light to a measurement spot of a measurement object and a pick-up assembly for capturing the measurement light radiated back from the measurement spot in an observation direction and for converting the same into corresponding electrical signals. The illumination assembly includes at least two illumination subassemblies which illuminate the measurement spot from different illumination sub-directions near a first preset nominal illumination direction, each with preferably parallel illumination light. By the illumination from different illumination sub-directions slightly deviating from the nominal illumination direction, angular errors of the illumination assembly can be compensated for in a simple manner.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: February 26, 2019
    Assignee: X-Rite Switzerland GmbH
    Inventor: Beat Frick
  • Patent number: 10215639
    Abstract: A non-paraxial Talbot spectrometer includes a transmission grating to receive incident light. The grating period of the transmission grating is comparable to the wavelength of interest so as to allow the Talbot spectrometer to operate outside the paraxial limit. Light transmitted through the transmission grating forms periodic Talbot images. A tilted detector is employed to simultaneously sample the Talbot images at various distances along a direction perpendicular to the grating. Spectral information of the incident light can be calculated by taking Fourier transform of the measured Talbot images or by comparing the measured Talbot images with a library of intensity patterns acquired with light sources having known wavelengths.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: February 26, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Erika Ye, Amir H. Atabaki, Ningren Han, Rajeev Jagga Ram, William F. Herrington
  • Patent number: 10215635
    Abstract: Aspects of blending data detected by a monochromator over multiple wavelength ranges is described herein. In one embodiment, the monochromator includes a diffraction grating, a grating drive motor that rotates the diffraction grating to provide, by diffraction of broadband light, first dispersed wavelengths of light and second dispersed wavelengths of light, a detector that detects a first reflection from the first dispersed wavelengths of light and a second reflection from the second dispersed wavelengths of light, and processing circuitry that blends data values from the first reflection and data values from the second reflection together to provide a spectrum of combined data values. By blending data detected over multiple ranges, measurements of relatively high precision and quality can be provided over a wider spectral range.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: February 26, 2019
    Assignee: WESTCO SCIENTIFIC INSTRUMENTS, INC
    Inventors: Jerome J. Workman, Jr., Tushar Saraf, Thomas Andrew Bennett, John Glaberson