公开(公告)号：US20210318171A1

公开(公告)日：2021-10-14

申请号：US17354948

申请日：2021-06-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YASUHISA INADA ,  ATSUSHI ISHIKAWA

IPC: G01J3/28 ,  G02B5/20 ,  G02B5/28 ,  H04N5/232 ,  G01J3/12

Abstract: An optical filter includes a filter array including filters two-dimensionally arrayed and a band-pass filter. The filters includes first and second filters. A transmission spectrum of each of the first and second filters has local maximum values of transmittance at three or more wavelengths included in a first wavelength region. The band-pass filter passes light in a second wavelength region including two or more wavelengths of the three or more wavelengths and not including one or more wavelengths of the three or more wavelengths. The filter array and the band-pass filter are disposed so that (a) the band-pass filter is located on an optical path of light that passes through the first and second filters or (b) the first and second filters are located on an optical path of light that passes through the band-pass filter.

公开(公告)号：US20210310942A1

公开(公告)日：2021-10-07

申请号：US14636924

申请日：2015-03-03

Applicant: PIETRO FIORENTINI S.P.A.

Inventor： Robert Jones ,  Matthew James Hayes ,  Paul David Ryder

IPC: G01N21/3577 ,  G01N21/359 ,  G01N11/04 ,  G01J3/42 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12

Abstract: A device for determining the composition of a mixture of fluids that flow along a pipe includes: a radiation source for illuminating the mixture with radiation; a detector for detecting radiation that has been attenuated by the mixture; and a device for monitoring the flow rate of fluid along the pipe and outputting a signal indicative of the flow rate. The device for determining further includes a device for adjusting the intensity of radiation emitting by the radiation source in response to the signal indicative of the flow rate so that the intensity of the radiation source is reduced if the flow rate reduces.

公开(公告)号：US11137286B2

公开(公告)日：2021-10-05

申请号：US15888754

申请日：2018-02-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungsang Cho

IPC: G01J3/02 ,  G01J3/28 ,  G02B5/20 ,  G01J3/51 ,  G01J3/12

Abstract: Provided are a filter array, a spectral detector including the filter array, and a spectrometer employing the spectral detector. The filter array may have a multi-array structure including a plurality of filter arrays. The filter array may include a first filter array having a first structure in which a plurality of first filters with different transmittance spectrums are arranged, and a second filter array having a second structure in which a plurality of second filters with different transmittance spectrums are arranged, the second filter array being arranged to at least partially overlap the first filter array at a first position relative to the first filter array so that the multi-arrangement type filter array has a first set of absorbance characteristics. The second filter array may be configurable to be arranged to at least partially overlap the first filter array at a second position relative to the first filter array so that the multi-arrangement type filter array has a second set of absorbance characteristics different from the first set of absorbance characteristics.

公开(公告)号：US11131860B1

公开(公告)日：2021-09-28

申请号：US15259740

申请日：2016-09-08

Applicant: Wavefront Research, Inc.

Inventor： Thomas A. Mitchell

IPC: G01J3/04 ,  G02B27/10 ,  G02B27/12 ,  G01J3/28 ,  G01J3/14 ,  G01J3/12

Abstract: Imagers and imaging spectrometers, which are more compact in physical size with wider spatial fields than previous designs and include axis bending elements, are disclosed.

公开(公告)号：US11102400B2

公开(公告)日：2021-08-24

申请号：US16775134

申请日：2020-01-28

Applicant: Cilag GmbH International

Inventor： Joshua D. Talbert ,  Donald M. Wichern

IPC: H04N5/225 ,  A61B1/04 ,  H04N5/232 ,  G01N21/64 ,  G06T7/521 ,  A61B1/00 ,  A61B1/05 ,  H04N5/235 ,  G01J3/28 ,  G06T1/00 ,  G01S7/48 ,  G01S7/483 ,  G01S17/89 ,  G01J3/44 ,  G01J3/12 ,  G01J3/42

Abstract: Pulsed fluorescence imaging in a light deficient environment is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm.

公开(公告)号：US11079276B2

公开(公告)日：2021-08-03

申请号：US16245107

申请日：2019-01-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiya Fujii ,  Takamasa Ando

IPC: G01J3/28 ,  G01N21/65 ,  A61B5/00 ,  G01J3/02 ,  G01N21/64 ,  G01N21/47 ,  G01J3/12 ,  G01B11/24 ,  G01S17/89

Abstract: An optical filter including filter regions arrayed two-dimensionally, in which the filter regions include a first region and a second region; a wavelength distribution of an optical transmittance of the first region has a first local maximum in a first wavelength band and a second local maximum in a second wavelength band that differs from the first wavelength band, and a wavelength distribution of an optical transmittance of the second region has a third local maximum in a third wavelength band that differs from each of the first wavelength band and the second wavelength band and a fourth local maximum in a fourth wavelength band that differs from the third wavelength band.

公开(公告)号：US11060910B2

公开(公告)日：2021-07-13

申请号：US16027449

申请日：2018-07-05

Applicant: Ocean Optics, Inc.

Inventor： Paul W. Ave

IPC: G01J3/02 ,  G01J3/10 ,  G02B5/20 ,  G01J3/12

Abstract: A device for improving the suppression of light from a Pulsed Xenon light source for spectrometry by combining a Variable Longpass Order-Sorting filter with a Dichroic Balancing filter coated on a fused Silica substrate is disclosed.

公开(公告)号：US11044423B2

公开(公告)日：2021-06-22

申请号：US16530232

申请日：2019-08-02

Applicant: REBELLION PHOTONICS, INC.

Inventor： Robert Timothy Kester

IPC: H04N5/33 ,  G01J3/02 ,  G01J3/28 ,  G01J5/00 ,  H04N5/225 ,  G01N21/3504 ,  G02B5/20 ,  G06K9/00 ,  G06K9/20 ,  G01J5/08 ,  G01J5/04 ,  G01J5/02 ,  G01J3/10 ,  G01J3/12

Abstract: In one embodiment, an infrared (IR) imaging system for determining a concentration of a target species in an object is disclosed. The imaging system can include an optical system including an optical focal plane array (FPA) unit. The optical system can have components defining at least two optical channels thereof, said at least two optical channels being spatially and spectrally different from one another. Each of the at least two optical channels can be positioned to transfer IR radiation incident on the optical system towards the optical FPA. The system can include a processing unit containing a processor that can be configured to acquire multispectral optical data representing said target species from the IR radiation received at the optical FPA. Said optical system and said processing unit can be contained together in a data acquisition and processing module configured to be worn or carried by a person.

公开(公告)号：US11022787B2

公开(公告)日：2021-06-01

申请号：US16226668

申请日：2018-12-20

Applicant: Leica Microsystems CMS GmbH

Inventor： Patric Mrawek ,  Thorsten Koester

IPC: G02B21/00 ,  G02F1/11 ,  G01J3/12 ,  G02F1/33 ,  G02B26/08

Abstract: A method for generating a control signal for an acousto-optical element includes generating a raw signal using at least one correction term by an IQ modulation from a target I component and a target Q component, and amplifying the raw signal to become the control signal. The target I component and/or the target Q component are corrected using the at least one correction term. The at least one correction term is obtained from an analysis of the control signal.

公开(公告)号：US20210156794A1

公开(公告)日：2021-05-27

申请号：US17103687

申请日：2020-11-24

Applicant: Korea Research Institute of Standards and Science

Inventor： Taek Jeong ,  Han Seb Moon ,  Dai Hyuk Yu ,  Jae Hoon Lee ,  Hyun Gue Hong

IPC: G01N21/31 ,  G01J3/42 ,  G01N21/64 ,  G01J3/12 ,  G01J3/44

Abstract: A method is disclosed for increasing an intensity of a signal detected in a spectroscopy device using a vapor cell and a spectroscopy device using the same. An operation method of the spectroscopy device may include: causing a first light for exciting an atom trapped in a vapor cell in a first hyperfine ground state to a first excited state to be incident on the vapor cell; causing a second light for exciting an atom trapped in the vapor cell in a second hyperfine ground state to a second excited state to be incident on the vapor cell; causing a third light for exciting the atom in the second excited state to a third excited state to be incident on the vapor cell; and detecting fluorescence which is emitted while the atom in the third excited state returns to the ground state.