公开(公告)号：US09778125B2

公开(公告)日：2017-10-03

申请号：US15405161

申请日：2017-01-12

Applicant: Oxsensis Limited

Inventor： Ralf-Dieter Pechstedt ,  Fabrice F. M. Maillaud

IPC: G01L19/04 ,  G01L11/02 ,  G01L9/00 ,  G01J3/02 ,  G01D3/028 ,  G01J3/26 ,  G01J9/02

CPC classification number: G01L11/02 ,  G01D3/028 ,  G01J3/0286 ,  G01J3/26 ,  G01J2009/0257 ,  G01L9/0079 ,  G01L9/0092 ,  G01L19/04 ,  G01L27/002

Abstract: An optical pressure sensor is disclosed having a pressure sensing optical cavity. A temperature sensing optical cavity at the sensing head is used by an interrogator to correct a pressure signal for effects of temperature. The optical cavities may be, for example, Fabry Perot cavities in the sensor head.

公开(公告)号：US20170254744A1

公开(公告)日：2017-09-07

申请号：US15506276

申请日：2015-08-27

Applicant: PILKINGTON GROUP LIMITED

Inventor： MICHAEL RICHARD HADEN ,  JULIAN INSKIP ,  WILLIAM STEPHEN PERRY ,  IAN ROSS WILLIAMS

IPC: G01N21/31 ,  G01J3/42

CPC classification number: G01N21/314 ,  G01J3/0218 ,  G01J3/0286 ,  G01J3/42 ,  G01N2021/3148 ,  G01N2021/3155 ,  G01N2021/8578

Abstract: A method of determining the concentration of a species in a portion of a furnace atmosphere is described. The method comprises the steps of measuring first, second and third intensities of electromagnetic radiation in the furnace at first, second and third wavelengths respectively. The third wavelength is selected to be representative of absorption of electromagnetic radiation by the species. A fourth intensity of electromagnetic radiation is calculated, being an estimate of the intensity of electromagnetic radiation in the furnace at the third wavelength absent any absorbing species in the furnace atmosphere. The third intensity and the fourth intensities are used to determine a parameter that is proportional to the concentration of absorbing species in the portion of the furnace atmosphere. Apparatus for carrying out the method is also described.

公开(公告)号：US20170241837A1

公开(公告)日：2017-08-24

申请号：US15588005

申请日：2017-05-05

Applicant: Kaiser Optical Systems, Inc.

Inventor： Patrick Wiegand ,  James M. Tedesco ,  Joseph B. Slater ,  Francis Esmonde-White

IPC: G01J3/02 ,  G01J3/44

CPC classification number: G01J3/0286 ,  G01J3/027 ,  G01J3/28 ,  G01J3/44 ,  G01J2003/2866

Abstract: Methods and systems for spectrometer dark correction are described which achieve more stable baselines, especially towards the edges where intensity correction magnifies any non-zero results of dark subtraction, and changes in dark current due to changes in temperature of the camera window frame are typically more pronounced. The resulting induced curvature of the baseline makes quantitation difficult in these regions. Use of the invention may provide metrics for the identification of system failure states such as loss of camera vacuum seal, drift in the temperature stabilization, and light leaks. In system aspects of the invention, a processor receives signals from a light detector in the spectrometer and executes software programs to calculate spectral responses, sum or average results, and perform other operations necessary to carry out the disclosed methods. In most preferred embodiments, the light signals received from a sample are used for Raman analysis.

公开(公告)号：US20170227521A1

公开(公告)日：2017-08-10

申请号：US15015244

申请日：2016-02-04

Applicant: Nova Biomedical Corporation

Inventor： Michael S. Cafferty ,  Scott P. Cionek

IPC: G01N33/49 ,  G01N21/25 ,  G01N21/03

CPC classification number: G01N33/49 ,  G01J3/0202 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/0297 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01J3/42 ,  G01J2003/2866 ,  G01N21/0303 ,  G01N21/255 ,  G01N21/274 ,  G01N21/31 ,  G01N33/492 ,  G01N2021/0321 ,  G01N2021/0389 ,  G01N2201/062 ,  G01N2201/0633 ,  G01N2201/0634 ,  G01N2201/0638

Abstract: A system of measuring hemoglobin and bilirubin parameters in a whole blood sample using optical absorbance. The system includes an optical-sample module, a spectrometer module, an optical fiber module optically connecting the optical-sample module to the spectrometer module, and a processor module. The optical-sample module has a light-emitting module having a LED light source, a cuvette and a calibrating-light module. The processor module receives and processes an electrical signal from the spectrometer module and transforms the electrical signal into an output signal useable for displaying and reporting hemoglobin parameter values and/or total bilirubin parameter values for the whole blood sample.

公开(公告)号：US09689669B2

公开(公告)日：2017-06-27

申请号：US14685921

申请日：2015-04-14

Applicant: RAYTHEON COMPANY

Inventor： Thomas William Ross, Jr. ,  Steven A. Miles ,  David C. Mann ,  Marco A. Avila ,  David Russell McDonald ,  Jeffery M. Gallagher

IPC: G01B11/27 ,  G02B27/36 ,  G02B27/34 ,  H04N5/232 ,  G02B7/28 ,  G01J5/08 ,  G01J3/02 ,  G01J1/42 ,  G01J1/04 ,  G01J1/02 ,  H04N17/00 ,  H04N5/225

CPC classification number: G01B11/272 ,  G01J1/0266 ,  G01J1/0411 ,  G01J1/4228 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/0286 ,  G01J3/0289 ,  G01J5/0806 ,  G01J5/089 ,  G02B7/287 ,  G02B27/34 ,  G02B27/36 ,  H04N5/2258 ,  H04N5/23212 ,  H04N17/002

Abstract: System and method for sensor alignment. In one example, a reimaging optical system includes reimaging foreoptics positioned to receive and reimage incident electromagnetic radiation to produce an intermediate image plane and output an optical beam of the received incident electromagnetic radiation, an imaging optical apparatus positioned to receive the optical beam and focus the electromagnetic radiation of the optical beam onto a first focal plane, a first imaging sensor positioned at the first focal plane and configured to produce a first image responsive to receiving the electromagnetic radiation of the optical beam, an alignment object selectively positioned at the intermediate image plane and configured to superimpose an alignment tool upon the first image, and a controller coupled to the first imaging sensor and configured to perform an alignment process for the first imaging sensor based on at least a position of the alignment tool in the first image.

公开(公告)号：US20170138841A1

公开(公告)日：2017-05-18

申请号：US15419319

申请日：2017-01-30

Applicant: International Business Machines Corporation

Inventor： Nestor A. Bojarczuk ,  Talia S. Gershon ,  Teodor K. Todorov ,  Theodore G. van Kessel

IPC: G01N21/03 ,  G01N21/31

CPC classification number: G01N21/0332 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0286 ,  G01J3/46 ,  G01J3/524 ,  G01N21/31 ,  G01N21/3563 ,  G01N2021/3568

Abstract: In one aspect, a spectrometer insert is provided. The spectrometer insert includes: an enclosed housing; a first transparent window on a first side of the enclosed housing; a second transparent window on a second side of the enclosed housing, wherein the first side and the second side are opposing sides of the enclosed housing; and a sample mounting and heating assembly positioned within an interior cavity of the enclosed housing in between, and in line of sight of, the first transparent window and the second transparent window. A method for using the spectrometer insert to locally heat a sample so as to measure temperature-dependent optical properties of the sample is also provided.

公开(公告)号：US09638686B1

公开(公告)日：2017-05-02

申请号：US15015278

申请日：2016-02-04

Applicant: Nova Biomedical Corporation

Inventor： Michael S. Cafferty ,  Scott P. Cionek

IPC: G01N33/48 ,  G01N33/49 ,  G01N21/27 ,  G01N33/487

CPC classification number: G01N33/492 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/14 ,  G01J3/42 ,  G01N21/21 ,  G01N21/274 ,  G01N21/31 ,  G01N33/48792 ,  G01N2021/216 ,  G01N2201/0634

Abstract: A method of measuring whole-blood hemoglobin parameters includes providing a LED light source, guiding light having the spectral range from the LED light source along an optical path, providing a cuvette module with a sample receiving chamber, providing a pair of first and second optical diffusers disposed in the optical path where the cuvette module is disposed between the pair of first and second optical diffusers, guiding light from the cuvette module into an optical spectrometer, and processing an electrical signal from the spectrometer into an output signal useable for displaying and reporting hemoglobin parameter values and/or total bilirubin parameter values of the sample of whole blood.

公开(公告)号：US09635284B2

公开(公告)日：2017-04-25

申请号：US15056960

申请日：2016-02-29

Applicant: FLIR Systems, Inc.

Inventor： Robert G. Benson ,  Thomas J. Scanlon ,  Paul A. Czerepuszko

IPC: H01L27/14 ,  H04N5/33 ,  G01N21/3518 ,  H04N5/225 ,  H01L31/18 ,  G01J3/28 ,  G01J3/02 ,  G01J5/12 ,  H01L31/0304 ,  H01L31/0352 ,  G01J5/08 ,  G01J5/06 ,  G01N21/17 ,  G01N21/3504 ,  G01J5/00

CPC classification number: H04N5/33 ,  G01J3/0286 ,  G01J3/2803 ,  G01J5/06 ,  G01J5/061 ,  G01J5/0806 ,  G01J5/0862 ,  G01J5/12 ,  G01J2005/0077 ,  G01J2005/0081 ,  G01J2005/123 ,  G01N21/3504 ,  G01N21/3518 ,  G01N2021/1793 ,  G01N2021/3531 ,  H01L31/03042 ,  H01L31/03046 ,  H01L31/035236 ,  H01L31/18 ,  H04N5/2253

Abstract: An infrared camera system is provided to detect absorption of infrared radiation in a selected spectral bandwidth. In one example, an infrared camera system includes a lens adapted to receive infrared radiation from a survey scene comprising one or more gasses. The infrared camera system also includes a focal plane array comprising a plurality of quantum well infrared photo detectors (QWIPs). The QWIPs are tuned to detect a limited spectral bandwidth of the infrared radiation corresponding to at least a portion of an infrared absorption band of the one or more gasses. The infrared camera system also includes an optical band pass filter positioned substantially between the lens and the focal plane array. The optical band pass filter is adapted to filter the infrared radiation to a wavelength range substantially corresponding to the limited spectral bandwidth of the QWIPs before the infrared radiation is received by the focal plane array.

公开(公告)号：US20170102271A1

公开(公告)日：2017-04-13

申请号：US15257938

申请日：2016-09-07

Applicant: Keyence Corporation

Inventor： Shinichi Tsukigi

IPC: G01J3/46 ,  G01J3/50 ,  G01J3/10

CPC classification number: G01J3/463 ,  G01J3/0286 ,  G01J3/10 ,  G01J3/36 ,  G01J3/50 ,  G01J3/513 ,  G01J2003/1213 ,  G01J2003/2833 ,  G01J2003/466 ,  G05B19/401 ,  G05B19/404 ,  G09G3/04

Abstract: There is provided a photoelectric switch capable of accurately detecting even such a workpiece where a tint changes within the same workpiece, while preventing erroneous detection. The photoelectric switch includes: a light projecting unit; a light receiving unit; a coincidence degree calculating unit for comparing the acquired color information with a reference color to calculate a coincidence degree of both of the color information. When the color information is newly acquired, a detection signal generating unit compares, with a detection determination threshold, the highest coincidence degree of coincidence degrees calculated by respectively comparing the color information newly acquired, with the two or more reference colors, to perform workpiece determination.

公开(公告)号：US20170082489A1

公开(公告)日：2017-03-23

申请号：US14860611

申请日：2015-09-21

Applicant: Ondax, Inc.

Inventor： Lawrence Ho ,  Frank Havermeyer ,  Christophe Moser ,  James Carriere ,  Eric Maye ,  Randy Heyler

IPC: G01J3/02 ,  G02B7/00 ,  G03H1/02 ,  G02B5/32 ,  G01J3/44 ,  G01J3/06

CPC classification number: G01J3/0286 ,  G01J3/0227 ,  G01J3/0237 ,  G01J3/06 ,  G01J3/44 ,  G02B5/32 ,  G02B7/008 ,  G03H1/0248 ,  G03H2001/186 ,  G03H2001/2289 ,  G03H2227/03

Abstract: Systems and methods are provided herein. An exemplary system may include a laser source, the laser source having a laser center wavelength; at least one narrowband optical element receiving light emitted by the laser, the narrowband optical element having a filter center wavelength, the narrowband optical element being arranged such that the filter center wavelength is initially spectrally aligned with the laser center wavelength, the filter center wavelength changing in response to a temperature change such that the filter center wavelength is not substantially aligned with the laser center wavelength; and a passive adjustment mechanism coupled to the narrowband optical element, the passive adjustment mechanism including an actuator, the actuator moving in response to the temperature change, the actuator motion rotating the narrowband optical element, the rotation compensating for the temperature change such that the filter center wavelength and laser center wavelength remain spectrally aligned.