公开(公告)号：US20210293621A1

公开(公告)日：2021-09-23

申请号：US17260358

申请日：2019-07-12

Applicant: ISTANBUL TEKNIK UNIVERSITESI ,  ISTANBUL MEDIPOL UNIVERSITESI

Inventor： Onur FERHANOGLU ,  Muhammed Fatih TOY ,  Sakir Kaan CETINDAG ,  Fehmi CIVITCI

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/14

Abstract: A prism spectrometer having higher resolution and wider spectral width through the use of a speckle generating diffuser.

公开(公告)号：US20210278274A1

公开(公告)日：2021-09-09

申请号：US17321716

申请日：2021-05-17

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tomofumi SUZUKI ,  Kyosuke Kotani ,  Tatsuya Sugimoto

IPC: G01J3/14 ,  B81B3/00 ,  G01J3/02 ,  G01J3/10 ,  G01J3/45 ,  G01B9/02 ,  G02B7/182 ,  G02B26/08 ,  G02B27/14

Abstract: An optical module includes a mirror unit and a beam splitter unit. The mirror unit includes a base with a main surface, a movable mirror, a first fixed mirror, and a drive unit. The beam splitter unit constitutes a first interference optical system for measurement light along with the movable mirror and the first fixed mirror. A mirror surface of the movable mirror and a mirror surface of the first fixed mirror follow a plane parallel to the main surface and face one side in a first direction perpendicular to the main surface. The movable mirror, the drive unit, and at least a part of an optical path between the beam splitter unit and the first fixed mirror are disposed in an airtight space.

公开(公告)号：US20210223102A1

公开(公告)日：2021-07-22

申请号：US16749168

申请日：2020-01-22

Applicant: Applied Materials, Inc.

Inventor： Guoheng Zhao ,  Edward W. Budiarto ,  Todd J. Egan

IPC: G01J3/28 ,  G01J3/14 ,  G01J3/02 ,  G02B6/293

Abstract: Implementations disclosed describe a system comprising a first optical device to receive an input beam of light, the input beam having a plurality of spectral components of light, and cause the input beam to disperse into a plurality of spectral beams, wherein each of the plurality of spectral beams corresponds to one of the plurality of spectral components and propagates along a spatial path that is different from spatial paths of other spectral beams, and a second optical device to collect a portion of each of the spectral beams, wherein the collected portion depends on the spatial path of the respective spectral beam, and form an output beam of light from the collected portion of each of the spectral beams, wherein a spectral profile of the output beam is different from a spectral profile of the input beam of light.

公开(公告)号：US10918287B2

公开(公告)日：2021-02-16

申请号：US16880095

申请日：2020-05-21

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. Islam

IPC: G01J3/00 ,  A61B5/00 ,  G01J3/10 ,  G01J3/28 ,  G01J3/14 ,  G01J3/453 ,  G01J3/42 ,  G01J3/02 ,  G01N21/35 ,  G16H40/67 ,  G01N21/359 ,  A61B5/145 ,  G01N33/15 ,  G01N33/49 ,  G01N21/3563 ,  G01N21/39 ,  G01N33/02 ,  G01N33/44 ,  G01N21/88 ,  A61B5/1455 ,  H01S3/30 ,  G01J3/18 ,  G01J3/12 ,  G01N21/85 ,  G01N21/95 ,  H01S3/067 ,  H01S3/00 ,  G01M3/38

Abstract: A measurement system comprises a pulsed laser diode array that includes one or more Bragg reflectors, and wherein the light generated by the array penetrates tissue comprising skin. At least some of the wavelengths of light are in the near infrared. The detection system is synchronized to the laser diode array and comprises an infrared camera and a first receiver comprising a plurality of detectors. The first receiver comprises one or more detector arrays and performs a time-of-flight measurement. The measurement system generates an image, the detection system non-invasively measures blood in blood vessels within or below a dermis layer within the skin based at least in part on near-infrared diffuse reflection from the skin, and the detection system measures absorption of hemoglobin between 700 and 1300 nanometers wavelength range. A processor compares the absorption of hemoglobin between different tissue spatial locations, and the measurement system processes the time-of-flight measurement.

公开(公告)号：US20200340861A1

公开(公告)日：2020-10-29

申请号：US16768543

申请日：2019-11-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xianqin MENG ,  Wei WANG ,  Xiaochuan CHEN ,  Xiandong MENG ,  Jifeng TAN ,  Jian GAO ,  Fangzhou WANG ,  Qiuyu LING ,  Peilin LIU

IPC: G01J3/28 ,  G02B6/12 ,  G02B6/13 ,  G01J3/18 ,  G01J3/14 ,  G01J3/02

Abstract: A light splitting device includes an optical waveguide body and a dispersion grating. The optical waveguide body is configured to transmit incident light to the dispersion grating, the dispersion grating is configured to disperse the incident light transmitted by the optical waveguide body into a plurality of spectral lines, and the optical waveguide body is further configured to change propagation directions of the plurality of spectral lines and to emit the plurality of spectral lines.

公开(公告)号：US20200278251A1

公开(公告)日：2020-09-03

申请号：US16757232

申请日：2018-10-22

Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)

Inventor： Adam SCHOLEFIELD ,  Martin VETTERLI ,  Yves BELLOUARD ,  Michalina PACHOLSKA ,  Gilles BAECHLER ,  Arnaud LATTY

IPC: G01J3/28 ,  G01J3/14

Abstract: The present disclosure concerns a multi-spectral image printing method. The method includes the steps of:—providing a multi-spectral image;—providing a material;—determining changes in a refractive index value of the material permitting to reproduce the multi-spectral image when the material is illuminated; and—generating the changes in refractive index value in the material.

公开(公告)号：US10718666B2

公开(公告)日：2020-07-21

申请号：US16225121

申请日：2018-12-19

Applicant: Analytik Jena AG

Inventor： Stefan Münch ,  Michael Okruss

IPC: G01J3/04 ,  G01J3/22 ,  G01J3/02 ,  G01J3/18 ,  G01J3/14 ,  G01J3/12

Abstract: The present disclosure discloses a spectrometer arrangement including an entrance-slit group including a slit wheel and a slit mask for introducing radiation into and for limiting the optical field of the spectrometer arrangement, a first dispersive element for spectrally decomposing the radiation in a main dispersion direction, and a second dispersive element for spectrally decomposing the radiation in a transverse dispersion direction that forms an angle with the main dispersion direction to yield a two-dimensional spectrum. The slit wheel is mounted rotatably about an axis of rotation and has a falcate opening having a width that changes depending on the angle. The slit mask includes an opening that is longer than a largest width of the falcate opening such that radiation radiates through the falcate opening of the slit wheel and the opening of the slit mask. The present disclosure further includes a corresponding method and an optical component group.

公开(公告)号：US10677736B2

公开(公告)日：2020-06-09

申请号：US15573440

申请日：2015-05-11

Applicant: ArcelorMittal

Inventor： Asier Vicente Rojo ,  Artzai Picon Ruiz ,  Sergio Rodriguez Vaamonde

IPC: G01N21/85 ,  G01J3/42 ,  G01N21/31 ,  G01N33/205 ,  G01N21/3563 ,  G01J3/28 ,  G01J3/14

Abstract: A method of determining a chemical composition of a slag portion is provided. The method includes providing the slag portion having a surface, collecting light reflected from the surface using an optical system, obtaining a data set from the collected light, the data set at least defining a matrix containing values representative of an intensity of a part (LM,λ) of the collected light, each part being collected from one of a plurality of points at one of a plurality of wavelengths, the matrix being indexed at least by: a plurality of space coordinates of the plurality of points, and a plurality of spectral parameters representative of the plurality of wavelengths. The method further includes conditioning the matrix in order to obtain a reduced set of values and performing a mathematical algorithm using the reduced set of values in order to obtain the chemical composition. A corresponding installation is also provided.

公开(公告)号：US10517484B2

公开(公告)日：2019-12-31

申请号：US16506885

申请日：2019-07-09

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. Islam

IPC: G01J5/02 ,  A61B5/00 ,  G01N21/3563 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N21/85 ,  H01S3/067 ,  G01N21/95 ,  H01S3/30 ,  G01J3/12 ,  G01M3/38 ,  G01J3/18 ,  H01S3/00

Abstract: A wearable device includes a measurement device to measure a physiological parameter adapted to be placed on a wrist or an ear of a user. A plurality of semiconductor light sources such as light emitting diodes generate corresponding output light having an initial light intensity. A receiver includes spatially separated detectors receiving reflected light from the output lights and coupled to analog to digital converters. The receiver is configured to synchronize to the semiconductor source(s). The measurement device improves signal-to-noise ratio of the output signal by increasing light intensity relative to the initial light intensity and by increasing a pulse rate. Further improvement in signal-to-noise ratio is achieved by using change detection, where the receiver compares the signals with light on and with light off.

公开(公告)号：US20190271592A1

公开(公告)日：2019-09-05

申请号：US16347027

申请日：2017-11-02

Applicant: OREGON HEALTH & SCIENCE UNIVERSITY

Inventor： Joe Gray ,  Summer Dowell ,  Xiaolin Nan ,  Steven Jacques ,  Don Kania

IPC: G01J3/02 ,  G02B27/58 ,  G02B21/16 ,  G02B21/18 ,  G01J3/14 ,  G01N21/64 ,  G01N21/84

Abstract: Devices, systems, reagents, and methods for the performance of multi-spectrum super resolution microscopy are disclosed.