公开(公告)号：US12031903B2

公开(公告)日：2024-07-09

申请号：US17614763

申请日：2020-03-30

Applicant: University of Science and Technology of China

Inventor： Shuiming Hu ,  Jin Wang ,  Yu Sun

IPC: G01N21/35 ,  G01N21/3504 ,  G01N33/00 ,  G02B26/08

CPC classification number: G01N21/3504 ,  G01N33/0027 ,  G02B26/0858 ,  G01N2201/06113 ,  G01N2201/0636

Abstract: A detection method and detection system for a trace gas, the detection method comprising: providing a resonant cavity, a gas to be measured being filled inside of a cavity body of the resonant cavity; providing detection light rays having different frequencies, the detection light rays being incident to the inside of the resonant cavity from one end of the resonant cavity in the extending direction and exiting from the other end of the resonant cavity in the extending direction so as to obtain detection light rays carrying information of a trace gas to be measured, and the cavity body of the resonant cavity having a degree of freedom of expansion and retraction in the extending direction so that the longitudinal mode frequency of the resonant cavity matches the frequencies of the incident detection light rays; and according to the detection light rays that have different frequencies and that carry information of said trace gas, acquiring the molecular saturation absorption spectrum of said trace gas, and calculating the concentration of said trace gas. The detection system comprises: a laser generating device, the resonant cavity, a photoelectric detection device, a feedback control device and a scanning control device. At room temperature, detection light rays provided by a conventional laser are used to detect the concentration of a trace gas.

公开(公告)号：US20240210323A1

公开(公告)日：2024-06-27

申请号：US18682657

申请日：2021-07-09

Applicant: Ayna Analytics GmbH

Inventor： Laura RODRÍGUEZ GARCÍA ,  David MAINKA

IPC: G01N21/65 ,  G01N21/3577 ,  G01N21/359

CPC classification number: G01N21/65 ,  G01N21/3577 ,  G01N21/359 ,  G01N2201/0636 ,  G01N2201/08

Abstract: A measurement chamber extension for a spectrophotometric characterization with a NIR-spectrophotometer of a Raman-spectrophotometer of a liquid in a polymer container, wherein a measurement chamber extension comprises: an adapter plate having an adapter opening; a container holder, and an optical element, selected from a mirror and a waveguide. The adapter is configured to cover in a light-tight manner the measurement chamber of the NIR-spectrophotometer or of the Raman-spectrophotometer. The container holder is configured to allow a close placement of the optical element adjacent to the polymer container containing the liquid providing a loss-free transmission or transflection of the measurement light beam from the optical element to a detector of the NIR-spectrophotometer or Raman-spectrophotometer.

公开(公告)号：US12002698B2

公开(公告)日：2024-06-04

申请号：US17174731

申请日：2021-02-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myungjun Lee ,  Changhyeong Yoon ,  Wookrae Kim ,  Jaehwang Jung ,  Jinseob Kim

IPC: H01L21/67 ,  G01N21/47 ,  G01N21/88 ,  G01N21/95 ,  G06N20/00

CPC classification number: H01L21/67288 ,  G01N21/4788 ,  G01N21/8851 ,  G01N21/9501 ,  G01N2201/021 ,  G01N2201/0636 ,  G06N20/00

Abstract: Provided are a diffraction-based metrology apparatus having high measurement sensitivity, a diffraction-based metrology method capable of accurately performing measurement on a semiconductor device, and a method of manufacturing a semiconductor device using the metrology method. The diffraction-based metrology apparatus includes a light source that outputs a light beam, a stage on which an object is placed, a reflective optical element that irradiates the light beam onto the object through reflection, such that the light beam is incident on the object at an inclination angle, the inclination angle being an acute angle, a detector that detects a diffracted light beam that is based on the light beam reflected and diffracted by the object and a processor that measures a 3D pupil matrix for the diffracted light beam and analyze the object based on the 3D pupil matrix.

公开(公告)号：US11986284B2

公开(公告)日：2024-05-21

申请号：US16981244

申请日：2019-03-13

Applicant: CAMBRIDGE RESPIRATORY INNOVATIONS LTD

Inventor： Julian Carter ,  Jeremy Walsh ,  Russell Overend ,  Craig Whitehill ,  Colin Phimister

IPC: A61B5/083 ,  A61B5/08 ,  G01N21/3504 ,  G01N33/497

CPC classification number: A61B5/0836 ,  A61B5/082 ,  G01N21/3504 ,  G01N33/497 ,  G01N2201/0634 ,  G01N2201/0636

Abstract: We describe a capnometer for detecting a concentration of a component in a gas, wherein said gas is inhaled and/or exhaled by a patient, said capnometer comprising: an air flow region through which said gas passes to and/or from said patient's lung; a mid-IR semiconductor emitter configured to provide IR light at a wavelength in the range 3-5 μm; a mid-IR semiconductor detector to detect said IR light; a reflector to reflect said IR light emitted by said emitter; wherein said emitter, said detector and said reflector are arranged such that said IR light emitted by said emitter passes through said air flow region via said reflector to said detector. The reflector is selected from a Fresnel reflector and a reflective diffractive optical element, such as a Fresnel zone plate.

公开(公告)号：US20240102936A1

公开(公告)日：2024-03-28

申请号：US18373436

申请日：2023-09-27

Applicant: Yokogawa Electric Corporation

Inventor： Kodai Murayama

IPC: G01N21/85

CPC classification number: G01N21/85 ,  G01N2201/0633 ,  G01N2201/0636 ,  G01N2201/0638

Abstract: An optical device 1 includes: an optical element block 10 including optical elements that form an optical path P of light used for optical measurement, arranged around a measurement subject S so that the optical path P intersects the measurement subject S; and a rotation mechanism 20 configured to change an angle of the optical element block 10 relative to the measurement subject S so that the total length of the portion of the optical path P coincident with the measurement subject S changes.

公开(公告)号：US11933722B2

公开(公告)日：2024-03-19

申请号：US17740088

申请日：2022-05-09

Applicant: Calumino Pty Ltd.

Inventor： Marek Steffanson ,  Gabrielle de Wit

IPC: G01N21/35

CPC classification number: G01N21/35 ,  G01N2201/0636

Abstract: A radiation imaging apparatus includes an imaging surface; a light source; and an array of micro mirrors that rotate via radiation absorbed in the micro mirrors and reflect light from the light source to generate a distribution of reflected light on the imaging surface. The array first micro mirrors and second micro mirrors. The first micro mirrors have a first structure and the second micro mirrors have a second structure different than the first structure. The second structure is configured to correct for one or more environmental influences on the radiation imaging apparatus. A photodetector captures an image of the distribution of reflected light on the imaging surface. A processor is coupled to the photodetector. A communication interface is coupled with the processor; and a computing device is located separately from the radiation imaging apparatus and in communication with the communication interface.

公开(公告)号：US20240085318A1

公开(公告)日：2024-03-14

申请号：US18484971

申请日：2023-10-11

Applicant: Analog Devices, Inc.

Inventor： Shrenik DELIWALA

IPC: G01N21/3504 ,  G01N21/01

CPC classification number: G01N21/3504 ,  G01N21/01 ,  G01N2021/3513 ,  G01N2201/0636 ,  G01N2201/1211

Abstract: System and apparatus for robust, portable gas detection. Specifically, this disclosure describes apparatuses and systems for optical gas detection in a compact package using two optical pathways. There is a need for a very compact, low-power, gas detection system for gases such as CO2, NOx, water vapor, methane, etc. This disclosure provides an ultra-compact and highly stable and efficient optical measurement system based on principals of optical absorption spectroscopy using substantially collinear pathways.

公开(公告)号：US11913064B2

公开(公告)日：2024-02-27

申请号：US16498877

申请日：2018-03-09

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Hyun-Chul Yoon ,  Jae-Ho Kim ,  Yong-Duk Han ,  Hyeong-Jin Chun

IPC: G01N21/55 ,  G02B5/126 ,  G02B5/128 ,  G02B5/12 ,  C12Q1/6825

CPC classification number: C12Q1/6825 ,  G01N21/55 ,  G02B5/126 ,  G02B5/128 ,  G01N2021/551 ,  G01N2201/0636 ,  G02B5/12 ,  C12Q1/6825 ,  C12Q2525/301 ,  C12Q2563/131 ,  C12Q2565/519 ,  C12Q2565/60

Abstract: An optical gene biosensor is disclosed. The optical gene biosensor includes a substrate; a molecular beacon anchored to the substrate, wherein the molecular beacon includes an oligonucleotide specifically binding to a target nucleic acid molecule and a first compound bound to a first terminal of the oligonucleotide; an optical marker specifically binding to the first compound, wherein the optical marker is configured to retro-reflect irradiated light; a light source for irradiating the optical marker with light; and a light-receiver for receiving light retro-reflected from the optical marker. The optical gene biosensor may perform accurate quantitative analysis of a target nucleic acid molecule using both non-spectral and spectral light sources.

公开(公告)号：US11906357B2

公开(公告)日：2024-02-20

申请号：US17610369

申请日：2020-05-11

Applicant: X-RITE EUROPE Gmbh

Inventor： Mark Wegmüller

IPC: G01J3/02 ,  G01J3/10 ,  G01N21/25

CPC classification number: G01J3/0208 ,  G01J3/021 ,  G01J3/10 ,  G01N21/255 ,  G01J2003/102 ,  G01N2201/0627 ,  G01N2201/0636

Abstract: An illumination device for a spectral optical measurement device includes arranged with respect to an optical axis of the illumination device which, during a measurement operation, extends along a normal to a center point of an area of a sample to be illuminated. One or more segments of a mirror in a shape of a ring are centered on the optical axis. The mirror has an internal reflective surface arranged such that, during the measurement operation, the internal reflective surface receives light emitted from the light source and reflects the light over the area of the sample to be illuminated. The internal reflective surface has a freeform shape in a cross-section through the internal reflective surface in a plane parallel to the optical axis (for example in which the optical axis lies), and, in a cross-section of the mirror in a plane perpendicular to the optical axis, the internal reflective surface is represented by a straight line.

公开(公告)号：US20240044786A1

公开(公告)日：2024-02-08

申请号：US18491236

申请日：2023-10-20

Applicant: S4 Mobile Laboratories, LLC

Inventor： Lamalani SUAREZ ,  David PERRY ,  Linda BARRETT

IPC: G01N21/3563 ,  G01N21/359 ,  G01N33/24

CPC classification number: G01N21/3563 ,  G01N21/359 ,  G01N33/24 ,  G01N2201/0638 ,  G01N2201/0636 ,  G01N2201/08

Abstract: A spectrometer probe is disclosed herein including a shaft having a first end and a second end, a fiberoptic bundle located within the shaft, the fiberoptic bundle having a first end and a second end, a mirror, a transparent window, a prism, a prism support, an elastically deformable material, an index-matching elastomer, wherein the prism is completely encompassed by the index-matching elastomer, and a penetration cone operatively attached to the second end of the fiberoptic bundle, the mirror located within the second end of the shaft, wherein the transparent window is substantially parallel with the fiberoptic bundle and the shaft, wherein the prism is angled at approximately a 45 degree angle in relation to the window and the fiberoptic bundle, wherein the prism is flush with the prism support, wherein the elastically deformable material is biasly connected to the prism support.