公开(公告)号：US20230326203A1

公开(公告)日：2023-10-12

申请号：US18012230

申请日：2022-01-14

Applicant: Jiangsu University

Inventor： Aichen WANG ,  Huadong CAO ,  Binjie GAO ,  Lin LI ,  Xinhua WEI ,  Kun TAO

IPC: G06V20/10 ,  G01N21/84 ,  G06V10/774 ,  G06T7/00 ,  G06T5/00 ,  H04N23/54 ,  H04N23/51 ,  H04N23/56 ,  G06V10/46 ,  H01S5/024 ,  G03B17/02

CPC classification number: G06V20/188 ,  G01N21/84 ,  G06V10/774 ,  G06T7/0002 ,  G06T5/001 ,  H04N23/54 ,  H04N23/51 ,  H04N23/56 ,  G06V10/46 ,  H01S5/02415 ,  G03B17/02 ,  G01N2201/0633 ,  G01N2201/0636 ,  G01N2021/8466 ,  G01N2201/06113 ,  G06T2207/20081 ,  G06T2207/30188

Abstract: The present disclosure provides a portable apparatus for detecting early crop diseases based on spatial frequency domain imaging. The apparatus includes an end cover, a spatial frequency domain imaging apparatus, a dark box body, a telescopic section, and an opening-and-closing apparatus connected in sequence. The detection method includes: putting a crop sample to be detected into the dark box body from a bottom; projecting structured light of sine grey scale patterns with different spatial frequencies to the crop sample; after the sine gray scale pattern is switched each time, acquiring, by a camera, a diffuse reflection image of a surface of the crop sample once; after capturing all diffuse reflection images, performing uniformity correction on the images, demodulating the images, and extracting an alternating current component; and inputting an alternating current component image to a trained disease detection model, and determining whether the crop sample has a disease.

公开(公告)号：US11774350B2

公开(公告)日：2023-10-03

申请号：US17767284

申请日：2020-10-08

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Teemu Kääriäinen ,  Albert Manninen

IPC: G01N21/31 ,  G01N21/25 ,  G01N21/39 ,  G01N33/497

CPC classification number: G01N21/3103 ,  G01N21/255 ,  G01N21/39 ,  G01N33/497 ,  G01N2021/3125 ,  G01N2201/0221 ,  G01N2201/0633

Abstract: A measuring apparatus for measuring a spectrum of a gaseous sample includes



a tunable laser light source to provide an illuminating light beam,
a sample cell with an inner surface to provide scrambled light that is transmitted through the gaseous sample,
a detector to detect intensity of transmitted scrambled light and
a pressure control system to maintain an absolute pressure of the gaseous sample smaller than 50 kPa inside the sample cell to reduce spectral widths of spectral features of the gaseous sample. The measuring apparatus measures spectral transmittance values of the sample by modulating the spectral position of the illuminating light, and detecting the intensity of the transmitted light at different spectral positions. The divergence of the illuminating light beam in a transverse direction is greater than 30° to cause multiple consecutive reflections of the scrambled light from the inner surface.

公开(公告)号：US11768154B2

公开(公告)日：2023-09-26

申请号：US17670920

申请日：2022-02-14

Applicant: Shimadzu Corporation

Inventor： Hideaki Katsu ,  Takashi Muramatsu ,  Hiromasa Maruno ,  Naoji Moriya

IPC: G01N21/35

CPC classification number: G01N21/35 ,  G01N2021/3595 ,  G01N2201/0633 ,  G01N2201/0636

Abstract: A Fourier transform infrared spectrophotometer includes a main interfersometer, a control interferometer, an infrared detector, a control light detector, and a beam splitter block. The beam splitter block is disposed between a beam splitter and the control light detector. The control light detector has an optical axis inclined with respect to an optical axis of a control interference light beam.

公开(公告)号：US20230168187A1

公开(公告)日：2023-06-01

申请号：US18101448

申请日：2023-01-25

Applicant: Nikira Labs Inc.

Inventor： Manish Gupta ,  Rupal Gupta

IPC: G01N21/31 ,  G02B5/10 ,  G02B27/30

CPC classification number: G01N21/31 ,  G02B5/10 ,  G02B27/30 ,  G01N2201/0231 ,  G01N2201/06113 ,  G01N2201/0633 ,  G01N2201/0636

Abstract: An optical system for performing an absorption measurement of a medium sample includes a laser source configured to output a laser beam having a wavelength corresponding to an absorption region of interest; a ringdown cavity comprising a chamber configured to receive the medium sample, an input mirror at an input end, an output mirror at an output end, and an optical axis that extends through the centers of the input mirror and the output mirror; a coupling device configured to couple the laser beam through the input mirror into the chamber; and a detector optically coupled with the cavity, and configured to detect an intensity of light of the wavelength corresponding to the absorption region of interest that extends through the output mirror, wherein a cavity geometry of the cavity increases the re-entrant condition of the cavity relative to a conventional cavity comprised of two spherical mirrors.

公开(公告)号：US20190234873A1

公开(公告)日：2019-08-01

申请号：US16315131

申请日：2017-06-23

Applicant: Process Instruments (UK) LTD

Inventor： Mike Riding ,  Craig Stracey

IPC: G01N21/53 ,  G01N15/06 ,  G01N21/27 ,  G01N33/18

CPC classification number: G01N21/53 ,  G01N15/06 ,  G01N21/276 ,  G01N21/4785 ,  G01N21/8507 ,  G01N33/18 ,  G01N2015/0053 ,  G01N2015/0693 ,  G01N2021/4726 ,  G01N2201/062 ,  G01N2201/0633 ,  G01N2201/12746

Abstract: Sensor and Measurement Method A turbidity sensor and method of measuring turbidity is provided. The turbidity sensor (100) comprises first and second optical detectors for detecting a respective optical response of each optical signal. The first optical detector (20) may be arranged in direct view of the emitter (10) and the second optical detector (30) may be arranged in indirect view of the emitter (10). The two detectors collect light emitted from the emitter (10) when directed through a fluid sample during two optical tests run in very close succession. Firstly, a control sample is illuminated to determine a calibration factor for the control sample with known turbidity. Then, the calibration factor is used to determine the turbidity of a fluid sample with unknown turbidity. Advantageously, background radiation during the data collection process is ignored because the transient behaviour during each optical test is negligible. The approach is more convenient over known turbidity sensors and measurement methods, particularly in light of the calibration step.

公开(公告)号：US20190033287A1

公开(公告)日：2019-01-31

申请号：US16134245

申请日：2018-09-18

Applicant: Nova Biomedical Corporation

Inventor： Michael S. Cafferty ,  Scott P. Cionek

IPC: G01N33/49 ,  G01J3/02 ,  G01N21/25 ,  G01N21/03 ,  G01J3/42 ,  G01N21/31 ,  G01N21/27

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

Abstract: A replaceable cuvette assembly for use in an optical absorbance measurement system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The replaceable cuvette assembly includes a cuvette substrate and a cuvette module fixedly connected to the cuvette substrate wherein the cuvette substrate is a support for securing the cuvette assembly within the optical absorbance measurement system. The cuvette module has a sample inlet port, a sample outlet port, an electronic chip assembly, a sample receiving chamber that fluidly communicates with the sample inlet port and the sample outlet port, a first cuvette window, and a second cuvette window forming a portion of the sample receiving chamber. The first cuvette window and the second cuvette window are aligned with each other defining a cuvette optical path length between the first cuvette window and the second cuvette window and disposed within an optical path of the optical absorbance measurement system.

公开(公告)号：US20190017992A1

公开(公告)日：2019-01-17

申请号：US16132689

申请日：2018-09-17

Applicant: Nova Biomedical Corporation

Inventor： Michael S. Cafferty ,  Scott P. Cionek

IPC: G01N33/49 ,  G01J3/02 ,  G01N21/25 ,  G01N21/03 ,  G01J3/42 ,  G01N21/31 ,  G01N21/27

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

Abstract: A calibrating-light module for use in a system for measuring whole-blood hemoglobin parameters or whole-blood bilirubin parameters. The calibrating-light module includes a calibrating module housing, a light beam receiving portion connected to a first end of the calibrating module housing, a calibrating light portion connected to a side of the calibrating module housing wherein the side is transverse to the first end, and an optic fiber portion connected to a second end of the calibrating module housing wherein the calibrating module housing, the light beam receiving portion and the optic fiber portion are aligned with an optical path and the calibrating light portion is spaced from and transverse to the optical path.

公开(公告)号：US10073036B2

公开(公告)日：2018-09-11

申请号：US15341418

申请日：2016-11-02

Applicant: POCARED DIAGNOSTICS LTD.

Inventor： Gal Ingber ,  William G. Atterbury ,  Dave Holley ,  Thomas A. Klausing ,  John S. Laudo ,  Jason A. Schaefer ,  Sherwood Talbert ,  John Tallarico

IPC: G01N21/64 ,  G01N21/03 ,  G01N35/02 ,  B01L3/00 ,  C12M1/34 ,  G01N35/00 ,  G01N35/04

CPC classification number: G01N21/6486 ,  B01L3/5085 ,  B01L3/50851 ,  B01L2200/025 ,  B01L2200/028 ,  B01L2200/04 ,  B01L2300/0609 ,  B01L2300/0809 ,  B01L2300/0851 ,  B01L2300/12 ,  B01L2300/168 ,  B01L2300/1844 ,  C12M41/36 ,  G01N21/0303 ,  G01N21/0332 ,  G01N35/026 ,  G01N2021/0382 ,  G01N2021/6419 ,  G01N2021/6421 ,  G01N2021/6482 ,  G01N2035/00346 ,  G01N2035/0429 ,  G01N2035/0449 ,  G01N2201/0633

Abstract: The present invention relates to a system for conducting the identification and quantification of micro-organisms, e.g., bacteria in biological samples. More particularly, the invention relates to a system comprising a disposable cartridge and an optical cup or cuvette having a tapered surface; an optics system including an optical reader and a thermal controller; an optical analyzer; a cooling system; and an improved spectrometer. The system may utilize the disposable cartridge in the sample processor and the optical cup or cuvette in the optical analyzer.

公开(公告)号：US20180253585A1

公开(公告)日：2018-09-06

申请号：US15938572

申请日：2018-03-28

Applicant: GLORY LTD.

Inventor： Akira BOGAKI ,  Takahiro YANAGIUCHI ,  Takaaki MORIMOTO ,  Satoru OSHIMA

IPC: G06K9/00 ,  G01N21/59 ,  G01N21/55 ,  G07D7/12 ,  G07D7/121

CPC classification number: G06K9/00013 ,  G01N21/55 ,  G01N21/59 ,  G01N2201/061 ,  G01N2201/0633 ,  G07D7/12 ,  G07D7/121

Abstract: Light is emitted on one side of a paper sheet 100, which is being transported on a transport path, from a first light source 11, and light is emitted on other side of the paper sheet 100 from a second light source 21 and a fourth light source 22. A first light receiving sensor 14 receives a first reflected light, which is the light emitted by the first light source 11 and reflected from the one side of the paper sheet 100. A second light receiving sensor 24 receives a second reflected light, which is the light emitted by the second light source 21 and the fourth light source 22 and reflected from the other side of the paper sheet 100, and receives a transmitted light that is the light emitted by the first light source 11 and that has passed through the paper sheet 100. With this, satisfactory reflection image and transmission image of the paper sheet can be acquired while realizing the downsizing of the device.

公开(公告)号：US10036712B2

公开(公告)日：2018-07-31

申请号：US15029472

申请日：2014-10-13

Applicant: PHILIPS LIGHTING HOLDING B.V.

Inventor： Shuguang Kuai ,  Mark Christoph Jaeger ,  Weixi Zhou

IPC: G01N21/88 ,  H04N5/225

CPC classification number: G01N21/8806 ,  G01N21/8803 ,  G01N2021/8809 ,  G01N2201/0633 ,  G01N2201/12 ,  H04N5/225

Abstract: A defect inspection system is provided for inspection of defects in the surface of a sample. An array of light sources is used, with different light sources providing light to the sample from different directions. A main direction of illumination is defined with highest intensity, and this direction evolves over time. By providing varying directional illumination instead of blanket illumination, it becomes easier to detect defects.