公开(公告)号：US10928188B2

公开(公告)日：2021-02-23

申请号：US16352569

申请日：2019-03-13

Applicant: The Boeing Company ,  FemtoMetrix, Inc.

Inventor： Jeffrey H. Hunt ,  Jianing Shi ,  John Paul Changala

IPC: G01N21/63 ,  G01B11/24 ,  G01J3/10 ,  G01J3/44 ,  G01N21/65

Abstract: Surface sensing methods for imaging a scanned surface of a sample via sum-frequency vibrational spectroscopy are disclosed herein. The methods include exposing a sampled location of the scanned surface to a visible light beam and exposing the sampled location to a tunable infrared beam such that the tunable infrared beam is at least partially coincident with the visible light beam. The methods also include varying a frequency of the tunable infrared beam an inducing optical resonance within an imaged structure that extends at least partially within the sampled location. The methods further include receiving at least a portion of an emitted light beam from the sampled location and scanning the visible light beam and the runnable infrared beam across the scanned portion of the scanned surface. The methods also include generating an image of the scanned portion of the scanned surface based upon the receiving and the scanning.

公开(公告)号：US10921243B2

公开(公告)日：2021-02-16

申请号：US16426054

申请日：2019-05-30

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Terrence K. Jones ,  Jason M. Bylsma ,  Stefan Bokaemper

IPC: G01N21/3504 ,  G01N33/22 ,  G01F1/66 ,  G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/28 ,  G01J3/42 ,  G01M3/20 ,  G01M3/38 ,  G01N33/00 ,  G01N21/359 ,  E21B41/00 ,  G01J3/12 ,  G01N21/17

Abstract: Presented herein are systems and methods directed to a multispectral absorption-based imaging approach that provides for rapid and accurate detection, localization, and quantification of gas leaks. The imaging technology described herein utilizes a scanning optical sensor in combination with structured and scannable illumination to detect and image spectral signatures produced by absorption of light by leaking gas in a quantitative manner over wide areas, at distance, and in the presence of background such as ambient gas and vapor. Moreover, the specifically structured and scannable illumination source of the systems and methods described herein provides a consistent source of illumination for the scanning optical sensor, allowing imaging to be performed even in the absence of sufficient natural light, such as sunlight. The imaging approaches described herein can, accordingly, be used for a variety of gas leak detection, emissions monitoring, and safety applications.

公开(公告)号：US10900830B2

公开(公告)日：2021-01-26

申请号：US16493103

申请日：2018-03-23

Applicant: ATONARP INC.

Inventor： Yoshiyuki Ishimitsu

IPC: G01J3/44 ,  G01J3/02 ,  G02B6/42 ,  G01J3/10

Abstract: An optical head includes a first module that concentrates pump light and Stokes light on a first point; a second module that collects CARS light from the first point; and a third module that supports the first module and the second module. The first module includes: a high rigidity first frame; and a first optical system including a plurality of optical elements fixed to the first frame. The second module includes: a high rigidity second frame; and a second optical system including a plurality of optical elements fixed to the second frame. The third module includes a high rigidity third frame that fixes the first frame and the second frame.

公开(公告)号：US10898068B2

公开(公告)日：2021-01-26

申请号：US15340253

申请日：2016-11-01

Applicant: Canon USA Inc. ,  The General Hospital Corporation

Inventor： Mitsuhiro Ikuta ,  Guillermo J. Tearney ,  Dongkyun Kang ,  Dukho Do

IPC: G02B6/34 ,  G02B26/10 ,  G02B27/42 ,  G02B6/293 ,  G01J3/02 ,  G02B6/36 ,  G01J3/18 ,  G01J3/10 ,  G01J3/28 ,  A61B1/07 ,  G02B23/24 ,  G02B23/26 ,  A61B5/00 ,  G02B6/30 ,  G01J3/36 ,  A61B1/00 ,  A61B1/06

Abstract: An apparatus comprising at least: a first waveguide; a second waveguide; and a diffractive element. The first waveguide guides a first band of onto the diffractive element such that the first band is diffracted at an mth non-zero order over a first range of angles. The second waveguide guides a second band onto the diffractive element such that the second band is diffracted at the mth non-zero over the first range of angles. The second waveguide guides a third band onto the diffractive element such that the third band is diffracted at the nth non-zero order over the first range of angles. Wavelengths of the first band, the second band, and the third band do not overlap with each other. The mth order and the nth order are different from each other.

公开(公告)号：US20210010861A1

公开(公告)日：2021-01-14

申请号：US16510798

申请日：2019-07-12

Applicant: BioSpex, Inc.

Inventor： Wei Yang ,  Changqing Wang ,  Ming Chai ,  Shu Zhang

IPC: G01J3/02 ,  G06F1/16 ,  G01J3/10 ,  G01J3/28 ,  G01J3/44

Abstract: Systems for spectroscopy are provided. Exemplary systems include: an enclosure; a tunable laser disposed in the enclosure; an opening on a surface of the enclosure; a beam splitter disposed in the enclosure, the beam splitter being optically coupled to the tunable laser and the opening; a sensor, a sensing surface of the sensor having a filter disposed thereon; and electronics coupled to the tunable laser and the sensor, the electronics including a processor, memory, and a battery.

公开(公告)号：US10890483B2

公开(公告)日：2021-01-12

申请号：US16088660

申请日：2016-06-03

Applicant: SHIMADZU CORPORATION

Inventor： Shinya Wakuda

IPC: G01J3/10 ,  G01N3/02 ,  G01J3/02

Abstract: An infrared spectrophotometer uses a configuration that allows notification of the appropriate replacement time for an electric heater. The infrared spectrophotometer is provided with an electric heater 1, a PWM control circuit 5, a state detection unit 61, and a notification processing unit 62. The electric heater 1 is a light source that irradiates infrared radiation. The PWM control circuit 5 carries out PWM control so that the current supplied to the electric heater 1 is constant. The state detection unit 61 detects the state of the electric heater 1 on the basis of the variation in the duty cycle during PWM control. The notification processing unit 62 reports the result of the detection by the state detection unit 61.

公开(公告)号：US10883921B2

公开(公告)日：2021-01-05

申请号：US16036286

申请日：2018-07-16

Applicant: Thermo Scientific Portable Analytical Instruments Inc.

Inventor： Michael Bush ,  Eric A. Martin ,  David Perez ,  Michael Hargreaves ,  Lin Zhang ,  Xiaofeng Tan

IPC: G01N21/01 ,  G01N21/71 ,  G01J3/10 ,  G01J3/02 ,  G01J3/443

Abstract: In the operation of analytical devices, and particularly laser induced breakdown spectroscopy (LIBS) devices, a number of advantages may be obtained by the use of complementary safety mechanisms, such as those that govern the operation or firing of a laser. Such complementary safety mechanisms, compared to the individual safety mechanisms acting alone, prevent operation of the laser under a greater number of unsafe circumstances (even if one or more detected conditions are safe, based on not activating the associated safety mechanism) and permits operation under a greater number of safe circumstances (even if one or more detected conditions are unsafe, based on activating the associated safety mechanism).

公开(公告)号：US10849505B2

公开(公告)日：2020-12-01

申请号：US15847607

申请日：2017-12-19

Applicant: Arnold & Richter Cine Technik GmbH & Co. Betriebs KG

Inventor： Julius Muschaweck ,  Hans Kiening ,  Patrick Burckstummer ,  Peter Geissler

IPC: A61B5/00 ,  G02B21/00 ,  A61B90/20 ,  G02B21/36 ,  A61B1/00 ,  A61B1/06 ,  G01J3/10 ,  G01J3/28 ,  A61B17/00

Abstract: An electronic microscope has an electronic image sensor for generating primary image data sets, wherein the image sensor is configured to generate image signals that correspond to a plurality of different reception spectra, and wherein each primary image data respectively comprises at least one image signal of each of the plurality of reception spectra for a plurality of image zones. A control device of the microscope is configured to control an illumination device to make a cyclically repeating transmission of electromagnetic radiation having a plurality of different illumination spectra and to control the image sensor to generate a respective primary image data set for each of the plurality of different illumination spectra. A processing unit of the microscope is configured to calculate the reflection spectrum from the generated primary image data sets for at least some of the plurality of image zones and, starting from the primary image data sets generated for the plurality of different illumination spectra, to determine at least one secondary image data set in dependence on the calculated reflection spectrum, said secondary image data set being at least partly modified with respect to the primary image data sets.

公开(公告)号：US10788369B2

公开(公告)日：2020-09-29

申请号：US16277705

申请日：2019-02-15

Applicant: ITI Scotland—Scottish Enterprise

Inventor： Graeme Malcolm ,  Gordon Robertson

IPC: G01J3/10 ,  G01N21/3504 ,  H01S3/108 ,  G01N21/359 ,  G01J3/42 ,  G01N21/47 ,  G01N21/49 ,  H01S3/081 ,  H01S3/094 ,  H01S3/117 ,  H01S3/16 ,  H01S3/082 ,  H01S3/11 ,  G01V8/00

Abstract: An infrared detection system comprises the following elements. A laser source provides radiation for illuminating a target (5). This radiation is tuned to at least one wavelength in the fingerprint region of the infrared spectrum. A detector (32) detects radiation backscattered from the target (5). An analyser determines from at least the presence or absence of detected signal in said at least one wavelength whether a predetermined volatile compound is present. An associated detection method is also provided. In embodiments, the laser source is tunable over a plurality of wavelengths, and the detector comprises a hyperspectral imaging system. The laser source may be an optical parametric device has a laser gain medium for generating a pump beam in a pump laser cavity, a pump laser source and a nonlinear medium comprising a ZnGeP2 (ZGP) crystal. On stimulation by the pump beam, the ZnGeP2 (ZGP) crystal is adapted to generate a signal beam having a wavelength in a fingerprint region of the spectrum and an idler beam having a wavelength in the mid-infrared region of the spectrum. The laser gain medium and the ZnGeP2 (ZGP) crystal are located in the pump wave cavity.

公开(公告)号：US20200292446A1

公开(公告)日：2020-09-17

申请号：US16354452

申请日：2019-03-15

Applicant: TROPICANA PRODUCTS, INC.

Inventor： Jeremy Crouse ,  Zhanfeng Xu ,  Geovanne Ijpkemeule ,  Johnny Casasnovas

IPC: G01N21/359 ,  G01N33/03 ,  G01N33/02 ,  G01J3/10 ,  G01N21/84

Abstract: A method for sourcing plants includes performing nondestructive near-infrared (NIR) scans on selected plants, determining a predicted value of a characteristic for the selected plants based on evaluation of spectral data from the NIR scans against a characteristic model, and utilizing the predicted values for purchasing, processing, and/or financial forecasting. A method of sorting and processing plants includes determining a predicted value of a characteristic in gathered plants and determining a process to recover a primary product and/or a byproduct of the plants based on the predicted value. A method for forecasting includes determining a composite value of a characteristic in plants from a prior time period, correlating source data of plants to be gathered in the later time period with a predicted value of the characteristic in those plants, and determining a predicted composite value of the characteristic in the plants to be gathered in the later time period.