For Light Transmission Or Absorption Patents (Class 356/432)
  • Patent number: 11170343
    Abstract: In general, a computer-implemented method is described for receiving one or more requests to generate a medical study, retrieving from one or more data repositories one or more medical study instruments, receiving a selection of a particular medical study instrument to use in the medical study, generating by one or more computers a list of one or more research collaborators invited to review the medical study, and generating by one or more computers a list of one of more participants invited to join the medical study.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: November 9, 2021
    Assignee: Universal Research Solutions, LLC
    Inventors: Otho Raymond Plummer, Ali Adel Hussam
  • Patent number: 11140939
    Abstract: Sensor assisted head mounted displays for welding are disclosed. Disclosed example head mounted devices include an optical sensor, an augmented reality controller, a graphics processing unit, and a semi-transparent display. The optical sensor collects an image of a weld environment. The augmented reality controller determines a simulated object to be presented in a field of view, a position in the field of view, and a perspective of the simulated object in the field of view. The graphics processing unit renders the simulated object based on the perspective to represent the simulated object being present in the field of view and in the weld environment. The display presents the rendered simulated object within the field of view based on the position. At least a portion of the weld environment is observable through the display and the lens when the display is presenting the rendered simulated object.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: October 12, 2021
    Assignee: Illinois Tool Works Inc.
    Inventor: Christopher Hsu
  • Patent number: 11093841
    Abstract: A hierarchy of agents is constructed from a set of agents. Each agent in the hierarchy is trained to answer a question according to a corresponding corpus associated with the agent, which contains a portion of knowledge about a subject-matter. The question is submitted to a first subset of agents, the agents in the first subset occupying a first level in the hierarchy. From a first agent in the first subset, a first answer is propagated to a second agent in a second subset of agents, the first agent computing the first answer using a first portion of knowledge about the subject-matter. to form a first morphed answer, a second answer is added to the first answer, the second answer being computed by the second agent using a second portion of knowledge about the subject-matter. The morphed answer is produced in response to the question.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: August 17, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Aaron K. Baughman, Gray F. Cannon, Stephen C. Hammer, Craig M. Trim
  • Patent number: 11079314
    Abstract: According to exemplary practice of the present invention, a probe laser beam is aligned with a position detector and is spatially/geometrically related to a pump laser beam. A temperature gradient is produced in a medium by the pump beam. Since an increase or decrease in the temperature of the medium is related to an increase or decrease in the refractive index of the medium, position sensing of the deflection of the probe beam relative to the pump beam indicates whether the medium is heating or cooling.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: August 3, 2021
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Ross S. Fontenot, Veerendra K. Mathur, John H. Barkyoumb
  • Patent number: 11041184
    Abstract: A mycobacteriophage capable of delivering an auto-luminescent element includes luxCDABE genes for auto-luminescence of a host bacterium. The auto-luminescent element is located on a transposon, and can be randomly inserted into the host genome with the transposon. The mycobacteriophage can be used for rapid detection of a live host bacterium in a sample and detection of sensitivity of the host bacterium to a drug or drug combination.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 22, 2021
    Assignee: Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences
    Inventors: Tianyu Zhang, Zhiyong Liu
  • Patent number: 11035728
    Abstract: Interleaved data acquisition in optical spectroscopy is used to provide interference correction for time-varying interference. Measurements at a reference frequency are used to provide an estimate of the interference. These reference measurements are interleaved with the remaining measurements in order to provide estimates of the interference vs. time at relevant times. The interference being corrected can be spectrally structured or unstructured.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: June 15, 2021
    Assignee: Picarro, Inc.
    Inventors: Chris W. Rella, Hongbing Chen, Derek Gregory Fleck, John A. Hoffnagle, James Ian Lee, Gerald Thomas Sorensen, Sze Meng Tan
  • Patent number: 11019998
    Abstract: A fundus camera displays guide information on a display panel which can be viewed by a testee to guide the testee to adjust a relative position of the fundus camera and a tested eyeball of the testee to a determined position. Therefore, the testee can use the above-mentioned fundus camera to self-shoot fundus images with better image quality. A method for self-shooting fundus is also disclosed.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 1, 2021
    Assignee: MEDIMAGING INTEGRATED SOLUTION, INC.
    Inventors: Yu-Tsung Lee, Yung-En Kuo
  • Patent number: 11022429
    Abstract: A multi-mode approach for real-time inspection of structural components may be applied to rapid, wide area measurement of thickness of thick plate-like structures using full-field multi-mode response measurement and analysis. The approach may allow estimation of thickness from full-field multi-mode response to single-tone ultrasonic excitation in thick plates. The approach may utilize wavenumber information across all available wave modes in order to make wavenumber spectroscopy sensitive to changes in thickness for a broader range of nominal initial thicknesses.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 1, 2021
    Assignee: Triad National Security, LLC
    Inventors: Nicholas D. Stull, Eric Brian Flynn, Matthew David Mascarenas
  • Patent number: 11006868
    Abstract: Devices, systems, and methods for distinguishing tissue types are described herein. Such devices and systems may use dual polarization, conformal filters to acquire image data from target tissues and a processor to create an image in which the contrast between tissues has been enhanced.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: May 18, 2021
    Assignee: CHEMIMAGE TECHNOLOGIES LLC
    Inventors: Shona Stewart, Serena Augustine, Jeffrey Cohen, Ryan Priore
  • Patent number: 10989703
    Abstract: An electro-optical stimulation and recording system is disclosed, including a substrate and a plurality of wells coupled to the substrate. The system also includes at least one electrode set disposed proximate a respective one of the plurality of wells, wherein the electrode set comprises at least one electrode configured to collect an electric signal associated with at least a portion of the respective well. The system also includes a light-emitting element set corresponding to a respective one of the wells and configured to deliver optical stimulation to at least a portion of the respective well.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: April 27, 2021
    Assignee: Axion BioSystems, Inc.
    Inventors: Isaac Perry Clements, Amanda Jervis Preyer, Swaminathan Rajaraman, Daniel Christopher Millard, James David Ross
  • Patent number: 10952488
    Abstract: Sensor assisted head mounted displays for welding are disclosed. Disclosed example head mounted devices include an optical sensor, an augmented reality controller, a graphics processing unit, and a semi-transparent display. The optical sensor collects an image of a weld environment. The augmented reality controller determines a simulated object to be presented in a field of view, a position in the field of view, and a perspective of the simulated object in the field of view. The graphics processing unit renders the simulated object based on the perspective to represent the simulated object being present in the field of view and in the weld environment. The display presents the rendered simulated object within the field of view based on the position. At least a portion of the weld environment is observable through the display and the lens when the display is presenting the rendered simulated object.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: March 23, 2021
    Assignee: ILLINOIS TOOL WORKS
    Inventor: Christopher Hsu
  • Patent number: 10953397
    Abstract: A system may comprise a voltage upconverter, a universal serial bus (USB) connector to receive an input voltage from a USB port on a computing device, and a microfluidic diagnostic chip communication link to electrically couple the voltage upconverter to a microfluidic diagnostic chip wherein the voltage upconverter is to convert the input voltage to be received by the USB connector to an output voltage sufficient to drive a pump on the microfluidic diagnostic chip. A diagnostic system may comprise a microfluidic diagnostic chip comprising a pump and a voltage upconverter to receive an input voltage from a universal serial bus (USB) port of a computing device and to convert the input voltage into an output voltage that powers activation of the pump.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: March 23, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Melinda M. Valencia, Sirena Lu, Chantelle Elizabeth Domingue, Jeremy Sells
  • Patent number: 10942152
    Abstract: The defect inspection device is provided with a sound wave excitation unit for exciting a sound wave having a time waveform represented by a continuous periodic function to a prescribed position on the surface of an object to be measured, a displacement amount measurement unit for measuring a periodically varying displacement amount generated by the propagation of the sound wave from the prescribed position through the surface at at least three different phases of the periodic variation, and a periodic function acquisition unit for determining a periodic function expressing the periodic variation of the physical quantity on the basis of the displacement amount at the at least three different phases.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: March 9, 2021
    Assignee: Shimadzu Corporation
    Inventors: Takahide Hatahori, Yuya Nagata, Kenji Takubo
  • Patent number: 10928317
    Abstract: An apparatus related method for measuring a property of a target material. The system may include a pump device that generates a pump beam. A modulation device may receive the pump beam and generate a modulated pump beam by modulating an intensity amplitude of the pump beam, which may be directed to the target material. A probe device may generate a probe beam, which is directed to the target material. A part of the probe beam may be reflected off of the target material, and has similar frequency characteristic as the modulated pump beam. A detection device may detect the reflected probe beam and produce a signal. An analyzing device may receive the signal and calculate the target material property by comparing the modulated frequency characteristics of the signal to those of the pump beam. At least one of the pump and the probe beams may be infrared light.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: February 23, 2021
    Assignee: University of Virginia Patent Foundation
    Inventors: Brian M. Foley, John T. Gaskins, Patrick E. Hopkins
  • Patent number: 10928311
    Abstract: A method and system for rapid, label free nanoscale chemical imaging and tomography (3D) with multiplexing for speed, and engineered coherent illumination and detection to achieve 3-D resolution at twice the Abbe limit. A sample undergoes photo-thermal heating using a modulated infrared light source and the resulting probe beam modulation is measured with one or more visible laser probes. Varying the infrared wavelength results in a spectrum which characterizes the chemical composition of the sample. Optionally, inelastically scattered light generated as a result of the probe beam interacting with the sample is collected simultaneously to yield additional chemical information.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: February 23, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Robert Furstenberg, Tyler Huffman, Chris Kendziora, R. Andrew McGill
  • Patent number: 10924088
    Abstract: An optical pulse to voltage signal converter may include a photodetector, a front end-circuit, and a signal processor. The front-end circuit may include a tunable loading network configured to convert a stream of current pulses from the photodetector into a stream of input voltage signals, at least one tunable voltage source configured to generate at least one stream of signals with at least one select voltage, and at least one amplifier coupled to the at least one tunable voltage source. The at least one amplifier may be configured to compare the stream of input voltage signals and the at least one stream of signals with the at least one select voltage to generate at least one stream of output voltage signals with a select duty-cycle phase and duty-cycle resolution. The amplifier may be further configured to output the at least one stream of output voltage signals to the signal processor.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: February 16, 2021
    Assignee: Rockwell Collins, Inc.
    Inventor: Han Chi Hsieh
  • Patent number: 10902578
    Abstract: According to one embodiment, an inspection system includes an illuminator, an imager, and a processor. The illuminator irradiates light into an interior of a hole. The imager acquires a first image by imaging the interior of the hole where the light is irradiated. The processor detecting a blockage of at least a portion of the hole based on a luminance of the hole inside the first image.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: January 26, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroaki Kuwahara, Manabu Watanabe
  • Patent number: 10884160
    Abstract: A stick-on deep body thermometer includes a light emitting unit emitting detection light, a first scattering portion scattering the detection light passing a light-transmissive lower exterior body, a first adhesive layer that is adhesive, light-transmissive, and stuck on the lower exterior body, where the detection light scattered by the first scattering portion enters, a second scattering portion scattering detection light propagating in the first adhesive layer, a light receiving unit receiving detection light scattered by the second scattering portion, passing the lower exterior body, and incident thereon, and a contact state determination unit determining the stick-on deep body thermometer and a living body surface are in contact when a light receiving amount of the detection light is under a predetermined value, and determining they are not in contact when the light receiving amount of the detection light is not under the predetermined value.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: January 5, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Toru Shimuta
  • Patent number: 10859443
    Abstract: A method and apparatus for automatically measuring and storing a various measured values of an item, or a sequence of measured values of one or more item(s) suitable for single-handed use by a user. In particular, the present invention relates to a mobile computing device with one or more sensors for determining when to measure and record a particular value of one or more items. The mobile computing device may automatically measure the values based on sensing a change in the temperature value or through using proximity as detected by one or more onboard sensors. Additionally, the mobile computing device may automatically measure the values based on coming within range of an external proximity device. In response to automatically measuring the values, the measured values are stored along with additional information for record keeping purposes.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: December 8, 2020
    Assignee: Squadle, Inc.
    Inventors: Le Zhang, William K. Chen
  • Patent number: 10837897
    Abstract: There is disclosed a system and method for measuring the polarization of light which utilizes a spatially-varying polarization beam. This measurement is analyzed and improved using novel imaging methods and image processing methods on a digital signal processing (DSP) system to determine the polarization of light. Various embodiments are described which can measure light polarization, determine polarizing material distributions, determine the optical rotary dispersion of samples, and determine the circular dichroism of samples. In certain embodiments, the binding constants and binding activity of molecular samples can be achieved. Given its reduced complexity and size, the system may be configured to be portable such that the system may be used in various applications outside of a lab setting.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: November 17, 2020
    Inventors: Shahid Abbas Haider, Alexander Sheung Lai Wong, Farnoud Kazemzadeh
  • Patent number: 10816457
    Abstract: A spectrometric probe for sampling of bulk material and automatic sampler for sampling bulk material, which allows to obtain the composition parameters of the material to be sampled directly, avoiding the extraction and transfer of samples that shall be examined in external sections under the observation and analysis of trained and specialized personnel, thus optimizing operation times and reducing related costs.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: October 27, 2020
    Assignees: TECNOCIENTIFICA, S.A., ING. JORGENSEN & ASOC.
    Inventor: Gustavo Daniel Caneda
  • Patent number: 10809182
    Abstract: Methods and systems for imaging precision ellipsometry of a sample are provided. The method includes shining a source of linearly polarised light on a surface of the sample wherein light reflected off the surface of the sample has elliptic polarisation. The method further includes converting polarisation of the light reflected off the surface of the sample into linear polarisation suitable for a polarisation modulator by a retarder and oscillating a polarisation modulator to measure the polarisation rotation of the polarised light passing through the retarder. In addition, the method includes synchronising acquisition of images of the light from the retarder with oscillations of the polarisation modulator to acquire first array images during positive half-periods of oscillations of the polarisation modulator and to acquire second array images during negative half-periods of the oscillations of the polarisation modulator.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 20, 2020
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Nikolai Leopoldovich Yakovlev, Brian Liau
  • Patent number: 10802403
    Abstract: A method for the microlithographic production of microstructured components, includes: providing a wafer, to which a photoresist is applied at least partly; providing a mask having structures to be imaged; providing a projection exposure apparatus having an illumination unit and a projection lens; exposing the photoresist by projecting at least one part of the mask onto a region of the photoresist with the aid of the projection exposure apparatus; and ascertaining a deviation between a structure property of the structures produced on the exposed wafer from a predefined desired structure property. Ascertaining includes: determining at least one property of a light field used for exposing the photoresist applied to the wafer. The method further includes aftertreating the wafer on the basis of the ascertained deviation, and chemically developing the after treated wafer.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: October 13, 2020
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Michael Patra
  • Patent number: 10788368
    Abstract: Disclosed here is a system including a multi-wavelength integrated light source having one or more heaters. The system can comprise a substrate including a light source section, the heater(s), and a plurality of sections. The sections can include multiple materials, where the material for a given section can be based on one or more targeted criteria. For example, one section can have a targeted criteria of being optically transparent. Another section can have a targeted criteria of providing mechanical support, and another section can have a targeted criteria of being a thermal insulator. In some instances, openings in the substrate can be formed and filled with one or more materials to form a window (e.g., a section having a targeted criteria of being optically transparent) and a thermal isolator (e.g., a section having a targeted criteria of being thermally insulating).
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: September 29, 2020
    Assignee: Apple Inc.
    Inventors: Jason Pelc, Mark Alan Arbore
  • Patent number: 10761039
    Abstract: Method for a non-destructive and image forming examination of a sample (1) by means of a heat flow thermography method where the examination consists of evaluating the presence of any gradients in heat flow velocity at respective depth distances from a surface of the sample (1), comprising exciting the sample (1) by means of periodic heat pulses P1 from at least one excitation source, and capturing thermal image sequences of a thermal flow originating from the heat pulses by at least one infrared camera (5), implementing relative time delays ?t between a starting point of imaging of the respective image sequences and a starting point of the periodic excitation, combining all captured image sequences to a resulting image sequence in which all images are arranged in a correct time sequence, and extracting from the resulting image sequence an indication of the existence and depth distance of a heat flow velocity transition from a surface of the sample.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: September 1, 2020
    Assignee: DCG Systems GmbH
    Inventors: Hans Heissenstein, Peter Stolz, Raiko Meinhardt-Wildegger
  • Patent number: 10754013
    Abstract: A method for controlling an emitted light output of a light source of an optical sensor system, in which a portion of the emitted light output is represented in an electrical signal, a characteristic variable of the signal representing a pulse energy of an emitted light pulse is determined, and a control signal for the light source is provided using the characteristic variable and a setpoint value of the characteristic variable.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: August 25, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Kai Worms, Ernst Kretzek, Timo Knecht
  • Patent number: 10739229
    Abstract: A system for measuring an absorption coefficient of a doped optical fiber may include: a laser source configured to transmit laser light at a selectable wavelength; a single-mode optical fiber including an end configured to splice to the doped optical fiber; two or more multimode fibers at a side of the doped optical fiber, spaced apart along the side of the doped optical fiber, configured to collect spontaneous emissions from the side of the doped optical fiber; and/or a photodiode or power meter connected to the two or more multimode fibers. A method for measuring an absorption coefficient of a doped optical fiber may include: collecting, from a side of the doped optical fiber, an emission spectrum using two or more multimode fibers; and/or calculating the absorption coefficient form using the emission spectrum and McCumber theory.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: August 11, 2020
    Inventors: Mostafa Peysokhan, Arash Mafi
  • Patent number: 10739193
    Abstract: An electric circuit for a microscope includes a lock-in amplifier. The lock-in amplifier has an input for an input signal, an input for a reference signal, an output for an output signal and a bandwidth filter configured such that a low bandwidth frequency value and/or a high bandwidth frequency value is variably settable. A dynamic bandwidth controller is configured to receive at least one parameter of a current setting of the microscope as an input, and to control the low bandwidth frequency value and/or the high bandwidth frequency value of the lock-in amplifier as a function of the at least one parameter of the current setting of the microscope.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: August 11, 2020
    Assignee: LEICA MICROSYSTEMS CMS GMBH
    Inventor: Vishnu Vardhan Krishnamachari
  • Patent number: 10718673
    Abstract: A fiber-based thermal property probe is disclosed. In embodiments, the thermal property probe is a modulated optical reflectance system and includes a pump beam source configured to transmit a pump beam through a pump fiber, the pump beam configured to heat a sample and the pump fiber having a pump fiber sample end. The fiber-based thermal property probe further includes a probe beam source configured to transmit a probe beam through a probe fiber, the probe beam configured to measure the temperature of the sample and the probe fiber having a probe fiber sample end. Additionally, the system includes a ferrule configured to hold the pump fiber sample end and the probe fiber sample end at a fixed, known separation distance from each other.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: July 21, 2020
    Assignee: Utah State University
    Inventors: Austin Fleming, Charles Folsom, Colby Jensen, Heng Ban
  • Patent number: 10718931
    Abstract: A confocal inspection system can optically characterize a sample. An objective lens, or separate incident and return lenses, can deliver incident light from a light source to the sample, and can collect light from the sample. Confocal optics can direct the collected light onto a detector. The system can average the incident light over multiple locations at the sample, for example, by scanning the incident light with a pivotable mirror in the incident and return optical paths, or by illuminating and collecting with multiple spaced-apart confocal apertures. The system can average the collected light, for example, by directing the collected light onto a single-pixel detector, or by directing the collected light onto a multi-pixel detector and averaging the pixel output signals to form a single electronic signal. Averaging the incident and/or return light can be advantageous for structured or inhomogeneous samples.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: July 21, 2020
    Assignee: Apple Inc.
    Inventors: Mark Alan Arbore, Matthew A. Terrel, Edward L. Hull
  • Patent number: 10705014
    Abstract: An image diagnosis apparatus determines an effective pulse based on a pulse signal corresponding to the rotation of an imaging core from a pulse signal corresponding to an A line indicating a period of a light source and switches the polarization state of light transmitted from an optical transceiver according to the effective pulse. According to the effective pulse, the image diagnosis apparatus acquires a signal of interference light between the light received by the optical transceiver and reference light.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: July 7, 2020
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Masayuki Sakamoto, Isao Mori
  • Patent number: 10682061
    Abstract: A photoacoustic remote sensing system (PARS) for imaging a subsurface structure in a sample has an excitation beam configured to generate ultrasonic signals in the sample at an excitation location; an interrogation beam incident on the sample at the excitation location, a portion of the interrogation beam returning from the sample that is indicative of the generated ultrasonic signals; an optical system that focuses at least one of the excitation beam and the interrogation beam with a focal point that is below the surface of the sample; and a detector that detects the returning portion of the interrogation beam.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: June 16, 2020
    Assignee: illumiSonics Inc.
    Inventors: Parsin Haji Reza, Roger Zemp
  • Patent number: 10684457
    Abstract: A microscope apparatus 10 includes a detection optical system 12 that captures light from a sample S and an illumination optical system 11 that radiates an illumination light onto the sample S. The illumination optical system 11 includes a cylindrical lens 5 that has a power in a first-axis direction and does not have a power in a second-axis direction that is perpendicular to the first-axis direction, a cylindrical lens 6 that has a power in the second-axis direction and does not have a power in the first-axis direction, and a scanner 4 that scans the illumination light in a width direction. The illumination optical system 11 is configured such that the first-axis direction is the width direction described above, and the cylindrical lenses 5 and 6 are arranged posterior to the scanner 4.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: June 16, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Masahito Dohi, Yoshihiro Shimada
  • Patent number: 10670874
    Abstract: An optical computed tomography system for comprehensive end-to-end verification of the delivered dose in phantoms is described. The optical computed tomography system includes a light source that emits light; a detector; and a light-collimating tank arranged between the light source and the detector. The light-collimating tank itself includes a transparent substrate having a recessed region formed therein; an incident light surface formed on the transparent substrate; and an exit light surface formed on the transparent substrate opposite the incident light surface and shaped to focus light toward a focal region located outside of the transparent substrate. In some configurations, the incident light surface is shaped to collimate light impinging on the incident light surface into parallel rays that pass through the tank towards the exit light surface.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: June 2, 2020
    Assignee: Duke University
    Inventors: Mark Oldham, Devin Miles
  • Patent number: 10670772
    Abstract: An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500° C. in chemically aggressive and harsh environments that impose stress, strain and vibrations. A plasmonic metamaterial or metasurface, engineered to have a specific spectral and angular response, exhibits optical reflection characteristics that are altered by varying physical environmental conditions including but not limited to temperature, surface chemistry or elastic stress, strain and other types of mechanical load. The metamaterial or metasurface comprises a set of ultra-thin structured layers with a total thickness of less than tens of microns that can be deployed onto surfaces of devices operating in harsh environmental conditions. The top interface of the metamaterial or metasurface is illuminated with a light source, either through free space or via an optical fiber, and the reflected signal is detected employing remote detectors.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 2, 2020
    Assignee: Purdue Research Foundation
    Inventors: Urcan Guler, Alexander V. Kildishev, Krishnakali Chaudhury, Shaimaa Azzam, Esteban E. Marinero-Caceres, Harsha Reddy, Alexandra Boltasseva, Vladimir M Shalaev
  • Patent number: 10668226
    Abstract: A flow sensor is provided to enable volumetric dose data to be acquired automatically by sampling flow rates of insulin measured by a flow sensor exposed to a flow manifold though which the insulin flows. The flow sensor preferably connects to a standard insulin pen on one end, and to a standard pen needle on the other end. Particular geometries and algorithms are utilized to accommodate the unique requirements of insulin flow determination during an injection event.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: June 2, 2020
    Assignee: BECTON, DICKINSON AND COMPANY
    Inventors: Gary Searle, Andrew Burke, Peter Costello, Kenneth Focht, Francis L. Ross
  • Patent number: 10663400
    Abstract: Disclosed is a humidity detector, which includes a light emitting part, a light receiving part and a humidity detecting part. The light emitting part and the light receiving part are positioned at two sides of the humidity detecting part along a first direction, and light emitted by the light emitting part is received by the light receiving part after passing through the humidity detecting part. The humidity detecting part includes a light transmittance adjustable part and a humidity sensitive deformation part, the humidity sensitive deformation part is configured to deform along with the change of the ambient humidity, and the light transmittance adjustable part is configured to change the transmittance to the light under the deformation effect of the humidity sensitive deformation part.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: May 26, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Lin Zhu
  • Patent number: 10644801
    Abstract: A proactive and non-obtrusive channel probing scheme is provided to accurately predict channel power, gain, and optical signal to noise ratio (OSNR) without disrupting the existing connections. In one example, using a probe signal with 5 ?s pulse duration in a single-hop network, rapid wavelength switching is achieved with power excursions less than or equal to 0.2 dB for different loading configurations.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: May 5, 2020
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: Daniel Kilper, Weiyang Mo, Houman Rastegarfar, Mariya A. Bhopalwala
  • Patent number: 10578555
    Abstract: Disclosed is an acoustic resonance spectrometry system for analysing a sample, which includes an optical pump-probe device adapted to generate a pump beam and a probe beam, the pump beam being consisted of a series of ultra-short pump light pulses having a repetition frequency in the spectral domain of the gigahertz, the pump beam being directed towards an optoacoustic transducer to generate a periodic grating of coherent acoustic phonons in the sample, the probe beam being directed towards the sample to form a scattering beam of the probe beam on the grating of phonons, a frequency variation device being adapted to vary the repetition frequency of the pump beam in a spectral range and a photo-detection system configured to measure a scattering signal as a function of the repetition frequency in the spectral range.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 3, 2020
    Assignees: UNIVERSITE DE BORDEAUX, INSTITUT POLYTECHNIQUE DE BORDEAUX, CENTRE NATIONALE DE LA RECHERCHE SCIENTIFIQUE, ECOLE NATIONALE SUPERIEURE DES ARTS ET METIERS, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, INSTITUT D'OPTIQUE GRADUATE SCHOOl
    Inventors: Bertrand Audoin, Eric Cormier, Jérôme Lhermite, Giorgio Santarelli, Yannick Guillet, Adrien Aubourg
  • Patent number: 10568197
    Abstract: A heat transfer system includes a first component formed of a thermally conductive material and a second component including a surface adapted to capture stray photons to provide heat to the electronic device. The first component is secured and thermally coupled with an electronic device. In particular, the first component includes first and second layers. The first component is in superposed relation with the second component.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 18, 2020
    Assignee: LOON LLC
    Inventor: Kevin Anderson
  • Patent number: 10535980
    Abstract: An atomic oscillator device includes an atomic oscillator, a controlled oscillator, a resonance controller, and a cold-atom clock output. The atomic oscillator comprises a two-dimensional optical cooling region (2D OCR) for providing a source of atoms and a three-dimensional optical cooling region (3D OCR) for cooling and/or trapping the atoms emitted by the 2D OCR. The atomic oscillator comprises a microwave cavity surrounding the 3D OCR for exciting an atomic resonance. The controlled oscillator produces an output frequency. The resonance controller is for steering the output frequency of the controlled oscillator based on the output frequency and the atomic resonance as measured using an atomic resonance measurement. The cold-atom clock output is configured as being the output frequency of the controlled oscillator.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: January 14, 2020
    Assignee: AOSense, Inc.
    Inventors: Martin M. Boyd, Adam T. Black, Thang Q. Tran, Matthew D. Swallows, Brian R. Patton, Miao Zhu, Thomas H. Loftus, Mark A. Kasevich
  • Patent number: 10535981
    Abstract: A device for preparing an ensemble of laser-cooled atoms and measuring their population includes a laser and a set of reflecting surfaces. The laser is able to produce a laser beam. The set of reflecting surfaces disposed to direct the laser beam along a multi-dimensional beam path to intersect a central space multiple times from different directions and retroreflect the laser beam to retrace the multi-dimensional beam path. The central space is able to have an ensemble of atoms or molecules. The atoms or the molecules are able to be cooled along one or more dimensions by the laser beam sent along the multi-dimensional beam path and able to be detected in the central space by an effect upon the laser beam sent along the multi-dimensional beam path.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: January 14, 2020
    Assignee: AOSense, Inc.
    Inventors: Martin M. Boyd, Adam T. Black, Brian R. Patton, Miao Zhu
  • Patent number: 10533974
    Abstract: A laser measuring device includes a light source, a first splitter, a second splitter, first photodetection units, and second photodetection units. The light source emits laser light. The first splitter splits the laser light into light to be incident on a specimen and reference light that travels in a predetermined direction. The second splitter is where a combined wave formed by combining signal light reflected off the specimen and the reference light traveling in a direction different from the predetermined direction enters. The first photodetection units detect one part of the combined wave that has been transmitted through the second splitter. The second photodetection units detect another part of the combined wave that has been reflected off the second splitter. The first splitter has an asymmetric splitting ratio set such that power of the reference light becomes larger than power of the light to be incident on the specimen.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: January 14, 2020
    Assignee: Hitachi, Ltd.
    Inventor: Kazuo Ishiyama
  • Patent number: 10533942
    Abstract: The invention is a system and method to measure oil content in water utilizing the fluorescence of oil emitted under excitation by laser. Oil and water mixture is transferred through the system to a measurement section in a microscope, which produces high resolution 3-dimensional images of the oil and water mixture with the fluorescence. The images are analyzed to calculate the amount of oil in water and oil droplets distribution. The image is also analyzed to distinguish oil coated solids from oil droplets, and to calculate the sizes and volumes of the solids.
    Type: Grant
    Filed: June 25, 2017
    Date of Patent: January 14, 2020
    Inventor: Jianfeng Zhang
  • Patent number: 10531798
    Abstract: Provided is an object information acquiring apparatus having: a receiving unit receiving an acoustic wave generated from an object, which has been irradiated with light, at a plurality of receiving positions and outputting time-series receiving signals; and a processing unit acquiring characteristic information by back-projecting the receiving signals, and the processing unit includes: a unit acquiring, for each receiving position, a dispersion index of light intensity distribution on a back projection spherical surface; a unit acquiring, for each receiving position, an angle range in the back projection based on the dispersion index; and a unit acquiring the characteristic information by back-projecting the receiving signals in the angle range.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: January 14, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryuichi Nanaumi, Takuro Miyasato
  • Patent number: 10492714
    Abstract: Disclosed herein are devices and methods for detecting blood glucose levels in a subject that involve passively quantifying mid-infrared emissions from the eye of the subject.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: December 3, 2019
    Assignee: FURMAN UNIVERSITY
    Inventors: William M Baker, M Paige Ouzts
  • Patent number: 10466102
    Abstract: A spectroscopy system includes a light source having an input light source, including semiconductor diodes generating an input beam with a wavelength shorter than 2.5 microns. Cladding-pumped fiber amplifiers receive the input beam and form an amplified optical beam having a spectral width. A nonlinear element broadens the spectral width of the amplified optical beam to 100 nm or more through a nonlinear effect forming an output beam that is pulsed. A filter is coupled to at least one of a lens and a mirror that receives the output beam and delivers the filtered output beam to a sample. A detection system includes detectors configured to receive the output beam reflected or transmitted from the sample. The detection system is configured to use a lock-in technique with the pulsed output beam and the spectroscopy system is adapted to detect chemicals in the sample.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: November 5, 2019
    Assignee: Omni Medsci, Inc.
    Inventor: Mohammed N. Islam
  • Patent number: 10461500
    Abstract: A method for sweeping an electromagnetic radiation source (12) to produce single mode operation having an optimized side-mode suppression ratio over a continuous range of wavelengths within a prescribed temporal profile, the electromagnetic radiation source is configured to output electromagnetic radiation at a given wavelength based upon parameters. The method includes determining a set of parameter combinations that satisfy a condition for a desired set of wavelengths and a maximum side mode suppression ratio over the range of wavelengths. The set of parameter combinations define sub-paths for transitioning from one wavelength to another wavelength. Combinations of select sub-paths provide a multivariate path for transitioning over the range of wavelengths. The method also includes controlling the semiconductor laser to emit electromagnetic radiation over the range of wavelengths by traversing the multivariate path in a desired manner.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: October 29, 2019
    Assignee: INSIGHT PHOTONIC SOLUTIONS, INC.
    Inventors: Michael Minneman, Jason Ensher, Michael Crawford
  • Patent number: 10456864
    Abstract: A laser processing system herein includes a laser oscillator, a laser optical path that guides laser beam from a laser beam emission port of the laser oscillator to a workpiece, an impure gas absorbent for absorbing impure gases that influence the propagation of the laser beam, and a shutter that exposes the impure gas absorbent in the laser optical path.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: October 29, 2019
    Assignee: FANUC CORPORATION
    Inventor: Takashi Izumi
  • Patent number: 10455664
    Abstract: To improve the safety of a photoacoustic apparatus by preventing illumination light from being freely emitted. A photoacoustic apparatus includes a position sensor that measures the orientation and/or position of an illumination-light emission end and a control unit that controls light emission from a light source depending on the output of the position sensor.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: October 22, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshinobu Tokita, Yasuhiro Someda