公开(公告)号：US10690590B2

公开(公告)日：2020-06-23

申请号：US15477753

申请日：2017-04-03

Applicant: Viavi Solutions Inc.

Inventor： Curtis R. Hruska ,  Peng Zou ,  Benjamin F. Catching ,  Marc K. Von Gunten ,  Valton Smith

IPC: G01N21/25 ,  G01J3/02 ,  G01N21/03 ,  G02B27/09 ,  G01J3/06 ,  G01J3/42

Abstract: A spectroscopic assembly may include a spectrometer. The spectrometer may include an illumination source to generate a light to illuminate a sample. The spectrometer may include a sensor to obtain a spectroscopic measurement based on light, reflected by the sample, from the light illuminating the sample. The spectroscopic assembly may include a light pipe to transfer the light reflected from the sample. The light pipe may include a first opening to receive the spectrometer. The light pipe may include a second opening to receive the sample, such that the sample is enclosed by the light pipe and a base surface when the sample is received at the second opening. The light pipe may be associated with aligning the illumination source and the sensor with the sample.

公开(公告)号：US10684170B2

公开(公告)日：2020-06-16

申请号：US15967964

申请日：2018-05-01

Applicant: NOVATRANS GROUP SA

Inventor： John F. Roulston ,  Daniel Mandelik

IPC: G01J3/10 ,  G01J3/433 ,  G01N21/3581 ,  G01J3/42

Abstract: A terahertz spectrometer includes: a terahertz-wave emitter and a terahertz receiver elements. The terahertz wave generated by means of generating beat frequency corresponding to the difference between two rapidly tunable continuous wave lasers. Having a difference in time between the interrogating signal and the reference signal at the receiver end side, which corresponds to intermediate frequency (IF), not centered around the baseband, i.e. zero Hertz. The offset step size of the intermediate frequency from zero Hertz is linearly correlated to the position of the interrogated object position.

公开(公告)号：US20200183146A1

公开(公告)日：2020-06-11

申请号：US16788602

申请日：2020-02-12

Applicant: Seiko Epson Corporation

Inventor： Tomonori MATSUSHITA ,  Nozomu HIROKUBO

IPC: G02B26/00 ,  G01J3/02 ,  G01J3/50 ,  G01J3/42 ,  G01J3/32 ,  G01J3/28 ,  G01J3/10 ,  G01J3/06 ,  G01J3/26

Abstract: An optical module includes a wavelength variable interference filter having a fixed reflective film, a movable reflective film which faces the fixed reflective film with a gap between reflective films interposed therebetween, and an electrostatic actuator that changes the gap between reflective films, and a gap control unit that controls the electrostatic actuator. The gap control unit controls the electrostatic actuator on the basis of an order which is set in accordance with a wavelength to be measured, and changes the gap between the reflective films.

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：US20200166760A1

公开(公告)日：2020-05-28

申请号：US16775123

申请日：2020-01-28

Applicant: Magic Leap, Inc.

Inventor： Nicole Elizabeth Samec ,  Nastasja U. Robaina ,  Adrian Kaehler ,  Mark Baerenrodt ,  Eric Baerenrodt ,  Christopher M. Harrises ,  Tammy Sherri Powers

IPC: G02B27/01 ,  G01J3/02 ,  G01J3/42 ,  A61B5/1455 ,  A61B5/11 ,  A61B5/00 ,  G06F3/03 ,  G01J3/10 ,  G06F3/01 ,  G01J3/28 ,  G01J3/427 ,  G01N21/359 ,  G01N33/483 ,  F21V8/00

Abstract: In some embodiments, a system comprises a head-mounted frame removably coupleable to the user's head; one or more light sources coupled to the head-mounted frame and configured to emit light with at least two different wavelengths toward a target object in an irradiation field of view of the light sources; one or more electromagnetic radiation detectors coupled to the head-mounted member and configured to receive light reflected after encountering the target object; and a controller operatively coupled to the one or more light sources and detectors and configured to determine and display an output indicating the identity or property of the target object as determined by the light properties measured by the detectors in relation to the light properties emitted by the light sources.

公开(公告)号：US10663476B2

公开(公告)日：2020-05-26

申请号：US15993503

申请日：2018-05-30

Applicant: Becton, Dickinson and Company

Inventor： Scott Bornheimer ,  Edward Goldberg

IPC: G01N33/72 ,  G01N21/31 ,  G01J3/02 ,  G01J3/04 ,  G01N21/64 ,  G01J3/42 ,  G01N21/359 ,  G01N21/03

Abstract: Aspects of the present disclosure include methods and systems for assaying a sample for an analyte. Methods according to certain embodiments include illuminating a sample with a slit-shaped beam of light, detecting light transmitted through the sample, determining absorbance of the transmitted light at one or more wavelengths and calculating concentration of the analyte based on the absorbance to assay the sample for the analyte. Systems for practicing the subject methods are also described.

公开(公告)号：US10648860B2

公开(公告)日：2020-05-12

申请号：US15870012

申请日：2018-01-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Seo Kang ,  Kyeeun Kim ,  Keo-Sik Kim ,  Sung Chang Kim ,  Ji Hyoung Ryu ,  Gi Hyeon Min ,  Si Woong Park ,  Hyoungjun Park ,  Dong Hoon Son ,  Chan Il Yeo ,  Dongsoo Lee ,  Young Soon Heo

IPC: G01J3/02 ,  G01J3/12 ,  G01J3/28 ,  G01J3/42

Abstract: Disclosed is a spectroscopic device including a planar lightwave circuit to which light passing through an optical fiber is input, a wavelength divider configured to divide a wavelength of light passing through the planar lightwave circuit, a beam splitter configured to divide a traveling direction of light passing through the wavelength divider into an external sample inlet and an internal sample inlet and adjust power of the divided light, a charge-coupled device (CCD) image sensor configured to covert light transmitted from the internal sample inlet to an electrical signal or convert light reflected by the external sample inlet to an electrical signal, a control and signal processor configured to process the electrical signal to indicate a light intensity based on each wavelength, and an input and output interface configured to perform a spectrum analysis for each wavelength using the processed electrical signal.

公开(公告)号：US10586744B2

公开(公告)日：2020-03-10

申请号：US15934679

申请日：2018-03-23

Applicant: Applied Materials, Inc.

Inventor： David K. Carlson

IPC: B01D53/04 ,  H01L21/66 ,  C23C16/44 ,  H01L21/02 ,  H01L21/67 ,  G01N21/3504 ,  G01N30/02 ,  G01J3/42 ,  G01N21/35 ,  G01N21/84 ,  G01N21/78

Abstract: Increasing efficiency of absorbers is provided herein. In some embodiments, a method of processing a substrate may include determining a quantity of a removal species in an effluent stream flowing from a semiconductor processing chamber, wherein determining comprises: detecting or predicting a quantity of the removal species upstream of a chamber abatement apparatus in the effluent stream flowing from the semiconductor processing chamber; and removing the removal species from the effluent stream with the chamber abatement apparatus if the determined quantity of the removal species exceeds a threshold value of the removal species.

公开(公告)号：US10585253B2

公开(公告)日：2020-03-10

申请号：US15586085

申请日：2017-05-03

Applicant: UT-Battelle, LLC

Inventor： Philip R. Bingham ,  Panagiotis G. Datskos ,  Tommy J. Phelps ,  Kenneth W. Tobin, Jr.

IPC: G02B6/42 ,  F21V8/00 ,  G02B6/35 ,  G01N21/3504 ,  G06T11/00 ,  G01J3/02 ,  G01J3/10 ,  G01J3/42 ,  G02B5/08

Abstract: Systems for determining the presence and distribution of gas emissions in an area are provided. For example, a system may include one or more light detectors and one or more reflectors and/or one more retroreflectors disposed around the perimeter, a light source configured to emit light at a plurality of wavelengths towards the one or more light detectors and/or the one or more reflectors and/or one or more retroreflectors, and one or more processors configured to receive information representing light intensity detected by the one or more light detectors, respectively at each of the plurality of wavelengths and determine gases present in each path based on the light intensity detected by the respective detector at each of the plurality of wavelengths and distribution thereof. The path being either light source-respective detector, light source-respective reflector-respective detector or light source-respective retroreflector-respective detector. Other system may not use reflectors and/or retroreflectors.

公开(公告)号：US20200064188A1

公开(公告)日：2020-02-27

申请号：US16485870

申请日：2018-02-13

Applicant: UNIVERSITY OF THE WEST OF SCOTLAND

Inventor： EWAN WADDELL ,  DESMOND GIBSON

IPC: G01J3/10 ,  G01J3/12 ,  G01J3/02 ,  G01J3/42

Abstract: An optical sensor for multispectral analysis of a fluid sample comprises at least one light source, at least one interference filter, and a plurality of light detectors arranged such that light emitted by the at least one light source is incident on the at least one interference filter. There is a spatial variation in the intensity of light incident on the said at least one interference filter.