公开(公告)号：US11137331B2

公开(公告)日：2021-10-05

申请号：US16530524

申请日：2019-08-02

Applicant: VIAVI Solutions Inc.

Inventor： William D. Houck

IPC: G01N15/02 ,  G01N21/53 ,  G01N33/00 ,  G01J3/44 ,  G08B17/107

Abstract: An optical detector device may receive a spectroscopic measurement from a multispectral sensor. The optical detector device may determine, based on the spectroscopic measurement, a particulate size of a particulate. The optical detector device may determine, based on the spectroscopic measurement, an identification of the particulate. The optical detector device may determine, based on the particulate size and the identification of the particulate, that an alert condition is satisfied. The optical detector device may trigger an alert based on determining that the alert condition is satisfied.

公开(公告)号：US20210285889A1

公开(公告)日：2021-09-16

申请号：US16819111

申请日：2020-03-15

Applicant: Alexander K. Pourshalchi

Inventor： Alexander K. Pourshalchi

IPC: G01N21/85 ,  G01J3/44 ,  G01N21/65

Abstract: The Nondestructive Fluid Sensing System is a device that rapidly scans fluids to determine physical and chemical properties of the sample fluid. The Nondestructive Fluid Sensing System can detect the presence of a sample fluid with various optical and electrical sensors, and determines physical and chemical properties. The system features several innovations that increase sample throughput, reduces sample cross contamination, and eliminates waste products typically used in chemical tests. The system may be applied to various industries including manufacturing quality control, and healthcare.

公开(公告)号：US11119045B2

公开(公告)日：2021-09-14

申请号：US16683166

申请日：2019-11-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Won Kyoung Lee ,  Bong Kyu Kim ,  Soo Jun Park ,  Chul Huh

IPC: G01J3/44 ,  G01N21/65

Abstract: An apparatus for analyzing microbiome according to an embodiment of the inventive concept includes a light source unit configured to excite first light, a sample unit on which a sample to which the first light is incident is disposed, and a data analysis unit configured to receive second light emitted from the sample unit and analyze microbiome in the sample from the second light. Here, the sample unit includes a conductive polymer structure that surrounds the sample.

公开(公告)号：US11102400B2

公开(公告)日：2021-08-24

申请号：US16775134

申请日：2020-01-28

Applicant: Cilag GmbH International

Inventor： Joshua D. Talbert ,  Donald M. Wichern

IPC: H04N5/225 ,  A61B1/04 ,  H04N5/232 ,  G01N21/64 ,  G06T7/521 ,  A61B1/00 ,  A61B1/05 ,  H04N5/235 ,  G01J3/28 ,  G06T1/00 ,  G01S7/48 ,  G01S7/483 ,  G01S17/89 ,  G01J3/44 ,  G01J3/12 ,  G01J3/42

Abstract: Pulsed fluorescence imaging in a light deficient environment is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm.

公开(公告)号：US11099133B2

公开(公告)日：2021-08-24

申请号：US16798345

申请日：2020-02-22

Applicant: Tsinghua University

Inventor： Zhengjun Zhang ,  Fengtong Zhao

IPC: G01J3/44 ,  G01N21/65 ,  C23C14/18 ,  C23C14/28 ,  C23C14/50 ,  G01N21/01 ,  H01J37/305

Abstract: Disclosed are a flexible paper-based surface-enhanced Raman scattering (SERS) substrate and a method of preparing the same, which relate to detection of trace organics. This invention deposits a film of silver nanoparticles on a carrier such as filter paper by oblique-angle deposition to prepare the SERS substrate, which can be used for the detection of trace organics. Silver nanoparticles are closely arranged on the flexible paper, allowing the substrate for good SERS effect due to the interparticle coupling effect. Moreover, compared to the traditional rigid and brittle substrates, the substrate prepared herein can be readily used in the detection of residual organics on complex surfaces in various liquid or solid conditions by dipping, dropwise adding or wiping due to the use of a flexible and absorbent carrier.

公开(公告)号：US11099073B2

公开(公告)日：2021-08-24

申请号：US16892017

申请日：2020-06-03

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yuki Yonetani ,  Shigeru Ichihara ,  Yasuhiro Sekine ,  Akira Yamamoto

IPC: G01J3/44 ,  G01J3/02 ,  G01N21/65

Abstract: An identification apparatus identifies the kind of an object to be conveyed by a conveyor and includes an illumination optical system illuminating the object with light from a light source, a light capturing optical system capturing Raman-scattered light from the object, a spectral element dispersing the Raman-scattered light, a light-receiving element receiving the Raman-scattered light dispersed by the spectral element, and a data-processing unit acquiring spectral data of the Raman-scattered light from the light-receiving element and performs an identification process. An optical axis of the illumination optical system and an optical axis of the light capturing optical system intersect each other. The illumination optical system is an imaging optical system that has a numerical aperture for the conveyance surface smaller than that of the light capturing optical system for the conveyance surface, or a collimator optical system that converts the light from the light source into parallel light.

公开(公告)号：US20210255041A1

公开(公告)日：2021-08-19

申请号：US17271826

申请日：2019-09-04

Applicant: PROVINCIAL HEALTH SERVICES AUTHORITY

Inventor： Zhenguo WU ,  Haishan ZENG ,  Jianhua ZHAO ,  Liwei JIANG

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/10 ,  G01J3/06

Abstract: Systems for confocal Raman spectroscopy of points of interest or regions of interest with concurrent imaging are disclosed. The imaging may be used for real time selection of points of interest or regions of interest for Raman spectroscopy and to monitor for unwanted motions of a sample while Raman spectra are acquired. Disclosed embodiments apply Reflectance confocal microscopy (RCM) in a confocal Raman spectroscopy system. A single laser may be used as a light source for both RCM and micro-Raman spectroscopy. A Faraday optical isolator may be applied to extract RCM signals for imaging. Systems as described herein have example application for ex vivo sample and in vivo skin measurement.

公开(公告)号：US11092494B1

公开(公告)日：2021-08-17

申请号：US16430402

申请日：2019-06-03

Applicant: MKS TECHNOLOGY

Inventor： Keith T. Carron ,  Shane A. Buller ,  Mark A. Watson ,  Sean Patrick Woodward

IPC: G01J3/28 ,  G01J3/44 ,  G01N21/65

Abstract: A spectrometer, such as a Raman spectrometer, adapted for analyzing a complex sample is provided. In an example implementation, the spectrometer may be able to determine one or more spectral characteristics of an inner subsurface layer or region of a complex sample (e.g., contents of a container). In one embodiment, for example, A spectrometer includes an excitation source configured to provide an excitation signal; an optical system configured to direct the excitation signal toward a sample and receive a spectroscopy signal from the sample. The optical system may include a spatial filter configured to separate or isolate at least one first portion of the spectroscopy signal from at least one second portion of the spectroscopy signal and pass the at least one first portion of the spectroscopy signal. A detector is configured to determine at least one spectral feature of the at least one first portion of the spectroscopy signal.

公开(公告)号：US11067513B2

公开(公告)日：2021-07-20

申请号：US16710819

申请日：2019-12-11

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Francesco Aieta ,  Anita Rogacs ,  Viktor Shkolnikov

IPC: G01N21/65 ,  G01J3/02 ,  G01J3/44 ,  G01J3/10 ,  G01J3/18

Abstract: In an example, an apparatus is described that includes a light source, a holographic optical element, a sampling apparatus, and a detector. The light source is configured to emit a beam of excitation light. The holographic optical element is arranged to convert the beam of excitation light into a plurality of beams of excitation light. The sampling apparatus is arranged to project the plurality of beams of excitation light onto a surface outside the apparatus as a two-dimensional pattern of projection points. The sampling apparatus is further arranged to collect scattered radiation emitted by the surface in response to the two-dimensional pattern of projection points. The detector detects a frequency shift in the scattered radiation.

公开(公告)号：US20210169338A1

公开(公告)日：2021-06-10

申请号：US16883415

申请日：2020-05-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eui Seok SHIN ,  Sung Mo AHN ,  Jin Young PARK ,  Jun Ho LEE ,  Hyeong Seok JANG

IPC: A61B5/00 ,  G01J3/44 ,  A61B5/02

Abstract: An apparatus for estimating an aging level may include: a light emitter configured to emit blue light to an object; a light receiver configured to measure fluorescence emanating from the object; and a processor configured to estimate the aging level of the object based on the measured fluorescence and an aging level estimation model.