MOBILE GAS AND CHEMICAL IMAGING CAMERA

    公开(公告)号:US20210037197A1

    公开(公告)日:2021-02-04

    申请号:US17062997

    申请日:2020-10-05

    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.

    Dual-band divided-aperture infra-red spectral imaging system

    公开(公告)号:US10893220B2

    公开(公告)日:2021-01-12

    申请号:US16256967

    申请日:2019-01-24

    Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays. One of the at least two detector arrays comprises a cooled mid-wavelength infra-red FPA. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

    Spectrometer, and spectrometer production method

    公开(公告)号:US10775236B2

    公开(公告)日:2020-09-15

    申请号:US15911714

    申请日:2018-03-05

    Abstract: A spectrometer includes a light detection element provided with a light passing part, a first light detection part, and a second light detection part, a support fixed to the light detection element such that a space is formed, a first reflection part provided in the support and configured to reflect light passing through the light passing part in the space, a second reflection part provided in the light detection element and configured to reflect the light reflected by the first reflection part in the space, and a dispersive part provided in the support and configured to disperse and reflect the light reflected by the second reflection part to the first light detection part in the space. A plurality of second light detection parts is disposed in a region surrounding the second reflection part.

    Compact wideband VUV spectrometer
    48.
    发明授权

    公开(公告)号:US10753798B2

    公开(公告)日:2020-08-25

    申请号:US16618480

    申请日:2018-07-10

    Applicant: RnD-ISAN, LTD

    Abstract: The invention relates to a compact wideband vacuum ultraviolet (VUV) and soft X-ray grazing incidence spectrometer based on a plane amplitude diffraction grating. The spectrometer enables simultaneous detection of a VUV spectrum in a positive first order of diffraction and a negative first order of diffraction. The technical result of the invention is that of recording a spectrum in a wide spectral range (3-200 nm) with a moderate spectral resolution (λ/δλ˜15-30) and with a significantly higher spectral resolution (λ/δλ˜100-200) in a narrow soft X-ray or extreme ultraviolet range with the possibility of measuring the absolute radiation output in these regions of the spectrum.

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