公开(公告)号：US20220229033A1

公开(公告)日：2022-07-21

申请号：US17652337

申请日：2022-02-24

Applicant: REBELLION PHOTONICS, INC.

Inventor： Robert Timothy KESTER ,  Nathan Adrian HAGEN

IPC: G01N33/00 ,  H04N5/33 ,  G01N21/3504 ,  G01J5/00 ,  G01J3/28 ,  G01J3/32 ,  G01J3/36 ,  G01J3/02 ,  G01J5/0806 ,  H04N17/00 ,  G01J5/60 ,  G01J5/08 ,  G01J3/42 ,  G01J5/53 ,  G01J5/0808

Abstract: Various embodiments disclosed herein describe an infrared (IR) imaging system for detecting a gas. The imaging system can include an optical filter that selectively passes light having a wavelength in a range of 1585 nm to 1595 nm while attenuating light at wavelengths above 1600 nm and below 1580 nm. The system can include an optical detector array sensitive to light having a wavelength of 1590 that is positioned rear of the optical filter.

公开(公告)号：US11307478B2

公开(公告)日：2022-04-19

申请号：US16117380

申请日：2018-08-30

Applicant: Seiko Epson Corporation

Inventor： Susumu Shinto ,  Akira Sano ,  Teruyuki Nishimura

IPC: G02F1/21 ,  G01J3/26 ,  G01J3/32 ,  G01J3/50 ,  G01J3/42 ,  G02B26/00

Abstract: An optical filter includes a substrate, a first reflective film provided on the substrate, a second reflective film disposed to face the first reflective film, and a supporting portion provided on the substrate and supporting the second reflective film. The first reflective film is protected with a first protective film so as not to be exposed and the second reflective film is protected with a second protective film so as not to be exposed.

公开(公告)号：US20210310865A1

公开(公告)日：2021-10-07

申请号：US17349225

申请日：2021-06-16

Applicant: Hitachi High-Tech Corporation

Inventor： Kei SHIMURA ,  Mizuki OKU ,  Kenji AIKO

IPC: G01J3/10 ,  G01N21/3581 ,  G02F1/39 ,  G01J3/02 ,  G01J3/32 ,  G01J3/42 ,  G02F1/37

Abstract: This far-infrared spectroscopy device is provided with: a variable wavelength far-infrared light source that generates first far-infrared light; an illuminating optical system that irradiates a sample with the first far-infrared light; a detecting nonlinear optical crystal that converts second far-infrared light into near-infrared light using pump light, said second far-infrared light having been transmitted from the sample; and a far-infrared image-forming optical system that forms an image of the sample in the detecting nonlinear optical crystal. The irradiation position of the first far-infrared light on the sample does not depend on the wavelength of the first far-infrared light.

公开(公告)号：US20210263298A1

公开(公告)日：2021-08-26

申请号：US17314553

申请日：2021-05-07

Applicant: Seiko Epson Corporation

Inventor： Tomonori MATSUSHITA ,  Nozomu HIROKUBO

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

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：US10955292B2

公开(公告)日：2021-03-23

申请号：US16307686

申请日：2017-06-12

Applicant: BOMILL AB

Inventor： Bo Löfqvist ,  Per Horvath

IPC: G01J3/10 ,  B07C5/34 ,  G01J3/28 ,  G01J3/36 ,  G01J3/02 ,  G01N21/31 ,  G01J3/32 ,  G01N21/85

Abstract: A detector system is disclosed herein that includes a plurality of light guides. Each light guide is guiding incoming light from a respective object in use, wherein the incoming light is provided by means of an illuminating means. The detector system comprises diffracting means for diffracting the incoming light in different wavelength ranges, at least one focuser for projecting the incoming light exiting the light guides onto the diffracting means, a detector having a detector area for receiving the diffracted light from the plurality of Sight guides, and a control unit. These are arranged to pulsate incoming light via only one light guide at a time based on a pulse timing parameter, and record a spectrum of light diffracted from each light guide and detected by the detector based on the pulse timing parameter.

公开(公告)号：US10948346B2

公开(公告)日：2021-03-16

申请号：US15586720

申请日：2017-05-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong Ho Kim

IPC: G01J3/10 ,  G01J3/44 ,  G01J3/32 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/28

Abstract: A spectrometer according to one aspect may include a plurality of light sources configured to emit light to a target object, a plurality of wavelength controllers installed on one surface of each of the plurality of light sources and configured to adjust a peak wavelength band of each of the light sources, and a detection unit configured to detect light returning from the target object.

公开(公告)号：US20210072084A1

公开(公告)日：2021-03-11

申请号：US16953910

申请日：2020-11-20

Applicant: National University Corporation Hokkaido University

Inventor： Yukihiro TAKAHASHI ,  Junichi KURIHARA ,  Tetsuro ISHIDA

IPC: G01J3/28 ,  B64C39/02 ,  B64D47/08 ,  G01J3/02 ,  G01J3/12 ,  G01J3/32 ,  G01J3/51 ,  G01N21/31 ,  G02F1/1335

Abstract: A spectral image capturing method using a spectral camera control device installed in aircraft, the method comprising:
a) setting an exposure time of the spectral camera so that a current exposure time is determined (S2), b) determining whether or not either an amount of attitude change or an amount of position change of the spectral camera per exposure time exceeds a predetermined threshold based on a spatial resolution of the spectral camera (S4), c1) when exceeding the predetermined threshold, resetting the current exposure time to be shorter (S5), c2) when not exceeding the predetermined threshold, not resetting the current exposure time to be shorter, and d) capturing a spectral image in a snapshot mode with the spectral camera using the reset exposure time, wherein when the transmission wavelength of the liquid crystal tunable filter is switched while the aircraft is in a stationary flight, steps b) to d) are repeated.

公开(公告)号：US10928268B2

公开(公告)日：2021-02-23

申请号：US16302810

申请日：2017-05-18

Applicant: LINERIDERS INC.

Inventor： Phil McNeil

IPC: G01J3/32 ,  G01N25/48 ,  G01M3/00 ,  G01M3/22

Abstract: Apparatus and methodologies relating to improved gas detection in closed systems are provided. More specifically, the present systems provide for the mixing, conditioning and production of a detection gas comprising, for example, predetermined ratios of nitrogen and methane gas, such predetermined ratios operative for enhancing imaging of gas leaks detected using infrared thermography imaging.

公开(公告)号：US10908021B2

公开(公告)日：2021-02-02

申请号：US16341133

申请日：2017-09-21

Applicant: NEC Corporation

Inventor： Chenhui Huang ,  Masahiro Tanomura

IPC: G01J3/18 ,  G01J3/02 ,  G01J3/40 ,  G01J3/36 ,  G01J3/32 ,  G01J3/28 ,  G01J9/00

Abstract: A spectroscopic device and the like that are capable of fast spectral dispersion are provided. The spectroscopic device includes: a modulation unit for converting wavefront shapes of light according to wavelengths; and a demodulation unit for changing a phase of light of a selected wavelength within the light whose wavefront shapes have been converted, in such a way that the light changes into a predetermined state.

公开(公告)号：US10753799B2

公开(公告)日：2020-08-25

申请号：US16311799

申请日：2017-06-22

Applicant: XPECTRALTEK, LDA

Inventor： Vasileios Papadakis ,  Carlos Aguiar Campos

IPC: G01N21/25 ,  G01J3/28 ,  G01J1/04 ,  G01J3/02 ,  G02B26/00 ,  G01J1/22 ,  G01J3/32 ,  G01J3/12 ,  G02B5/28 ,  G03B17/14

Abstract: The present disclosure relates to a spectral camera, in particular to a spectral camera having multiple filters mounted interchangeably within the optical path of the camera. It is disclosed a spectral camera having a plurality of spectral filters arranged around a cylindrical support, thus providing a filter carrousel, wherein the image sensor is placed within said carrousel.