公开(公告)号：US10458903B2

公开(公告)日：2019-10-29

申请号：US14761506

申请日：2014-01-14

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Zhi-Xing Jiang ,  Anthony Pierry

IPC: A61B5/05 ,  G01N21/31 ,  G01N33/497 ,  G01N21/3504 ,  G01J3/10 ,  G01N21/27 ,  G01N21/359 ,  G01J3/28 ,  G01J3/42 ,  A61B5/08 ,  G01N21/85 ,  A61M16/10

Abstract: A gas measurement detector includes first and second sources emitting mid- and near-infrared electromagnetic radiation respectively; source optics combining mid- and near-infrared electromagnetic radiation emitted by the first and second sources into a coaxial beam directed across a flow path of a flow of breathable gas; sensor optics dividing electromagnetic radiation in the coaxial beam that has traversed the flow path into first radiation that includes mid-infrared electromagnetic radiation and second radiation that includes near-infrared electromagnetic radiation; first and second radiation sensors generating output signals conveying information related to a parameter of the mid-infrared electromagnetic radiation in the first radiation and a parameter of the near-infrared electromagnetic radiation in the second radiation, respectively; and a processor determining a level of a gaseous molecular species based on the output signals with the output signals generated by the second radiation sensor compensating optical loss through the flow path.

公开(公告)号：US10458844B2

公开(公告)日：2019-10-29

申请号：US15668246

申请日：2017-08-03

Applicant: ABL IP HOLDING LLC

Inventor： David P. Ramer ,  Jack C. Rains, Jr.

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/42 ,  G01J3/10 ,  F21V8/00

Abstract: A spectrometer-equipped lighting device detects substances in an environment around the device. A fiber detector is optically coupled to receive light from a light source. The fiber detector has a bare area from which emanates an evanescent wave of light surrounding an exterior of the fiber detector to interact with the environment in which the fiber detector is exposed. The spectrometer, optically coupled to an opposite end of the fiber detector, detects the light output and in response, generates signals representative of the spectral power distribution of the light of the evanescent wave that has interacted with the surrounding environment. A controller analyzes the spectrometer generated signals and initiates action based on the analysis of the generated signals or outputs a report indicating an environmental condition detected by the spectrometer-equipped device.

公开(公告)号：US20190323955A1

公开(公告)日：2019-10-24

申请号：US16457999

申请日：2019-06-29

Applicant: Serguei Koulikov

Inventor： Serguei Koulikov

IPC: G01N21/3504 ,  G01J3/42 ,  G01N21/39 ,  G01N21/27 ,  G01N33/15 ,  G01N21/31 ,  G01N21/71

Abstract: The present invention provides a system for measuring concentrations of trace gases in gas mixtures using the absorption spectroscopy method. The system comprising an optical cell containing a gas mixture, a continuous-wave stepwise tunable external cavity laser, a detector system for measuring an absorption of laser light by the gas in the optical cell, and a processor to conduct an absorption spectroscopy analysis of the gas mixture based on light intensity measured by the detector system at one or more laser frequencies.

公开(公告)号：US20190316965A1

公开(公告)日：2019-10-17

申请号：US16385870

申请日：2019-04-16

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Yoshitaka Kobayashi ,  Junichi Matsuo

IPC: G01J3/42 ,  G02B5/122 ,  G01J3/02

Abstract: A gas analyzer includes an optical emitter that irradiates measurement light into a measurement region including a gas to be measured; a reflector that reflects the measurement light irradiated from the optical emitter; an optical receiver that receives the measurement light reflected by the reflector; and an aligner that expands a beam diameter of the measurement light at the reflector.

公开(公告)号：US10444153B2

公开(公告)日：2019-10-15

申请号：US15885035

申请日：2018-01-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Kyu Kim

IPC: G01N21/65 ,  G01N21/66 ,  G01J3/44 ,  G01J3/10 ,  G01J3/42 ,  G01J3/02 ,  G01N21/359 ,  G01J3/12 ,  G01N21/47

Abstract: A spectrum measurement apparatus includes: a plurality of light sources configured to emit light having different wavelengths to an object; a light detector configured to receive light, which is reflected or scattered from or transmitted through the object, and to measure an intensity of the received light; and a processor configured to determine a strength of an electric signal to be applied to at least one of the plurality of light sources by using one of the plurality of light sources, and by applying the electric signal having the determined strength to the plurality of light sources to obtain a spectrum of the object.

公开(公告)号：US20190310464A1

公开(公告)日：2019-10-10

申请号：US16348362

申请日：2017-11-09

Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

Inventor： Joachim Janes ,  Thorsten Giese

IPC: G02B26/10 ,  G02B26/08 ,  G01J3/02 ,  G01J3/42 ,  G01N21/64 ,  G01J3/44

Abstract: The invention relates to an image generation device comprising a laser light source (1); a mirror assembly having two parabolic mirrors (3, 6) via which a scanning light beam (1a, 5) generated by the laser light source is directed onto a sample surface (9); a deflection device (2), in particular a micromirror scanner, which is controllable such that the scanning light beam (1a, 5) scans points of the sample surface in a targeted manner; and a detector (10) which detects radiation emanating from a scanned point of the sample surface. The spatial resolution of the image generation device is substantially defined by the narrowest possible focusing of the laser beam, and the accuracy of the adjustable deflection angle is defined by the micromirror scanner.

公开(公告)号：US20190301929A1

公开(公告)日：2019-10-03

申请号：US16362716

申请日：2019-03-25

Applicant: InnoSpectra Corporation

Inventor： Kuo-Sheng Huang ,  Fei-Peng Chang ,  Hsi-Pin Li

IPC: G01J3/02 ,  G02B3/04 ,  G01N21/25 ,  G01J3/42

Abstract: The transmissive sampling module includes a light emitting element, an accommodation tank, and a lens group having a positive refractive power. The light emitting element is configured to emit an illumination beam. The accommodation tank is configured to accommodate an object to be measured. The lens group includes a first lens and a second lens. The first lens and the second lens are respectively located at a first side and a second side of the accommodation tank. The accommodation tank is located between the first lens and the second lens. The illumination beam is transmitted to the object after passing through the first lens. The object converts the illumination beam into a sample beam. The sample beam is transmitted to a main body of the spectrometer after passing through the second lens. A transmissive spectrometer having a transmissive sampling module is also provided.

公开(公告)号：US20190290148A1

公开(公告)日：2019-09-26

申请号：US16359189

申请日：2019-03-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seunggoo KANG ,  Dongil SON ,  Junghoon PARK

IPC: A61B5/024 ,  H04N5/225 ,  G01J3/28 ,  G01J3/42 ,  A61B5/00

Abstract: An electronic device includes a light emitter emitting visible light, an infrared emitter emitting infrared light, at least one detector detecting an electromagnetic wave, and at least one processor configured to obtain a user input to obtain spectral data of a target object, in response to obtaining the user input, emit the visible light by using the light emitter and emit the infrared light by using the infrared emitter, obtain a first reflected signal of the visible light reflected by the target object and a second reflected signal of the infrared light reflected by the target object, using the at least one detector, and generate the spectral data of the target object based on the first reflected signal and the second reflected signal.

公开(公告)号：US20190278151A1

公开(公告)日：2019-09-12

申请号：US16295786

申请日：2019-03-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Oh Kee KWON ,  Kisoo KIM ,  Sung Bock KIM ,  Young Ahn LEEM

IPC: G02F1/21 ,  H01S5/14 ,  G01J3/42 ,  G01J3/10

Abstract: A light comb generating device according to a disclosed embodiment includes a light source for generating light in a reference wavelength band and outputting the generated light, and an optical comb generator for generating a light comb having a reference comb interval from the output light, wherein the light source changes a wavelength of the output light as much as a reference frequency interval for every reference time interval, the light comb is generated within a wavelength range of the reference frequency interval, and the reference wavelength band may be at least about 3 μm and no greater than about 30 μm.

公开(公告)号：US20190265158A1

公开(公告)日：2019-08-29

申请号：US16329965

申请日：2017-09-01

Applicant: ELICHENS

Inventor： Yanis CARITU

IPC: G01N21/3504 ,  G01N21/31 ,  G01N21/359 ,  G01J3/10 ,  G01J3/42

Abstract: The invention relates to a method for analyzing gas by an optical method, according to which a gas sample, comprising gaseous species for which it is desired to determine the quantity, is subjected to an illuminating radiation generated by a light source. The method comprises detecting a radiation having crossed the gas, by means of a light sensor. According to the invention, the light source produces different successive illuminations, such that at each illumination, the spectrum of the illuminating radiation varies. During each illumination, the intensity of the radiation detected by the light sensor is recorded. A processor can estimate a quantity of each gaseous species as a function of the respective intensities measured during each illumination. The invention also relates to a gas analysis device implementing the method.