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    MEASURING ARRANGEMENT FOR AN OPTICAL SPECTROMETER
    2.
    发明申请
    MEASURING ARRANGEMENT FOR AN OPTICAL SPECTROMETER 审中-公开

    公开(公告)号：WO2021123262A1

    公开(公告)日：2021-06-24

    申请号：PCT/EP2020/087162

    申请日：2020-12-18

    Applicant: UNIVERSITÄT POTSDAM

    Inventor： POLLEY, Nabarun ,  HASS, Roland ,  REICH, Oliver

    IPC: G01J3/02 ,  G01N21/49 ,  G01J3/44 ,  G01J3/0205 ,  G01J3/0218 ,  G01J3/4412

    Abstract: The invention relates to a measuring arrangement for an optical spectrometer, in particular a photon density wave (PDW) spectrometer. The measuring arrangement comprises a plurality of optical waveguide elements (20), each of which extending along a longitudinal direction (24) from a proximal end (22) to a distal end (23), the distal end (23) configured to be placed in a substance to be measured. The optical waveguide elements (20) are configured for receiving excitation light from a light emitting device at the proximal end (22) and for emitting the excitation light into a substance to be measured at an outlet (21) at the distal end (23). They may further be configured for receiving measurement light caused by excitation light emitted into the substance and for conducting the measurement light towards the proximal end (22) to a detection device. The outlet (21) of the optical waveguide elements (20) are formed laterally relative to the longitudinal direction (24) such that excitation light is emitted from the outlet (21) in an emitting direction (25) transverse to the longitudinal direction (24) and/or measurement light is received in a receiving direction (25) transverse to the longitudi- nal direction (24). The outlets (21) may be arranged in at least two groups to form at least two sensing zones for measuring a substance in at least two distinct measuring spaces around the sensing zones.

    MEASURE OF THE COLOR OF A CONTROLLED LIGHTING OF AN AREA OF INTEREST TARGET AND N COLOR MEASUREMENT TARGETS
    5.
    发明申请
    MEASURE OF THE COLOR OF A CONTROLLED LIGHTING OF AN AREA OF INTEREST TARGET AND N COLOR MEASUREMENT TARGETS 审中-公开

    公开(公告)号：WO2021130233A1

    公开(公告)日：2021-07-01

    申请号：PCT/EP2020/087645

    申请日：2020-12-22

    Applicant: COSNOVA GMBH

    Inventor： THORSTEN HEIKO SCHELSKE, Yannik ,  MARIA PRIORE, Gerardo ,  MATHIEZ, Jean-Louis

    IPC: G01J3/02 ,  G01J3/50 ,  G01J3/52 ,  G01J3/0205 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/522 ,  G01J3/524 ,  G06F1/1607 ,  G06T11/001 ,  G06T7/557 ,  G06T7/90

    Abstract: Mobile phone accessory (1), to be associated with a smartphone, comprising a support and handling casing with an internal space (11a), an inner face (13a), an orifice (16) to be associated with an AOI target, located within a light incident spot (15), and a rear wall portion (14b), a lighting means (22) with an axis (22a), to produce the light illuminating the spot (15), a camera field of view (19) with an axis (19a), to make a reflection photo of the spot (15) and its content, a scattering plate (27), having a scattering opening (30) with a center (19aa) and a center (22aa), comprising a high-opacity portion and a low-opacity portion, which includes N color measurement targets (17), fixed on the face (13a) of the front wall portion (14a), sidely with the measurement orifice (16), through the scattering opening (30) is seen the spot (15), the scattering plate (27) has a varying degree of opacity, with a high-opacity degree in portion (25) or region (32a) on and around the center (22aa), a low-opacity degree in portion (26) or region (26b) at the opposite and near the scattering opening (30), and decreasing degrees of opacity from portion or region with high-opacity degree to portion or region with low-opacity degree, the scattering plate (27) making homogeneous the lighting as well the extension of the AOI target and the extension of the N color measurement targets (17).

    STIMULATED RAMAN SPECTROSCOPY FOR REAL-TIME, HIGH-RESOLUTION MOLECULAR ANALYSIS OF GASES IN HOLLOW CORE FIBRES
    6.
    发明申请
    STIMULATED RAMAN SPECTROSCOPY FOR REAL-TIME, HIGH-RESOLUTION MOLECULAR ANALYSIS OF GASES IN HOLLOW CORE FIBRES 审中-公开

    公开(公告)号：WO2021117041A1

    公开(公告)日：2021-06-17

    申请号：PCT/IL2020/051273

    申请日：2020-12-09

    Applicant: OPTIQGAIN LTD.

    Inventor： ALON, Ram ,  WOLF, Israel

    IPC: G01N21/65 ,  G01J3/0205 ,  G01J3/0218 ,  G01J3/44 ,  G01N2021/651 ,  G01N2021/655 ,  G01N2201/088 ,  G02B6/02328

    Abstract: A stimulated Raman scattering spectrometer for real-time, high- resolution molecular analysis of gases is based on two hollow-core fibres (420, 450) illuminated by a single high-power, short-pulse laser pump. The first fibre (420) is prefilled with high-concentration target gases. Interaction of each target gas inside the first fibre (420), with the laser pump, generates Raman signals corresponding to the target gases. The combined beam of the Raman signals and the pump laser beam is directed into the second fibre (450) containing the measured target gases. Interaction of each target gas with the combined beam generates the Stimulated Raman Growth, i.e., amplification of the Raman signal, which is proportional to the corresponding target gas concentration. A receiver subsystem (30) receives the beam from the second fibre (450), spectrally separates it to wavelengths corresponding to each target gas, extracts the Stimulated Raman Growth value corresponding to each target gas and calculates the concentration of each target gas.

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