Global spectral image analysing system for emission type optical and Raman diffusion or fluorescence spectrometer

    公开(公告)号:FR2719114A1

    公开(公告)日:1995-10-27

    申请号:FR9404962

    申请日:1994-04-25

    Applicant: DILOR

    Abstract: The system includes a primary monochromatic beam (6), a radiating source (4), a sample to be analysed (8), an illuminating means (12) designed so that the primary radiation (16) globally illuminates a chosen zone of the sample to be analysed. The system has an optical filtering unit (22,28) to receive the diffused secondary rays emitted by the sample and to produce a spectral image dispersed with this secondary radiation, and limited to a chosen spectral band. The illumination system (12) includes a fibre optic (100) having input and output sections (102,104). An optical unit (106) directs the primary rays into the input section (102) of the optic fibre. An optical system (14,110) optically combines the output section (104) of fibre optic and the zone of the sample to be analysed. A mixer unit (120,130,160) mixes the primary radiation introduced into the fibre optic so as to uniformly illuminate the zone of the sample to be analysed and to balance granularity of the primary radiation to the level of the zone.

    2.
    发明专利
    未知

    公开(公告)号:FR2664382A1

    公开(公告)日:1992-01-10

    申请号:FR9008407

    申请日:1990-07-03

    Applicant: DILOR

    Abstract: The invention relates to a spectrometry installation comprising an inlet, optical fiber means suitable for receiving an inlet beam and delivering a spectrally dispersed image of the beam which image is limited to a selected spectral band, a multi-channel detection module receiving said spectral image, and processor means. The optical filter means are provided with a deflector stage. Control means are associated with the optical deflector means to define the spectral band in terms of center frequency and band width, and control means are associated therewith for displacing the spectral image over the detection module. An electronic control unit is provided to control the control means and to control the processor means in a plurality of operating modes, each of which comprises joint control of the selected spectral band, of the displacement of the spectral image, and of the processor means, for the purpose of selectively using a particular set of detector components.

    3.
    发明专利
    未知

    公开(公告)号:FR2681941A1

    公开(公告)日:1993-04-02

    申请号:FR9112061

    申请日:1991-10-01

    Applicant: DILOR

    Abstract: The filtering means filter the exciting radiation (EX) in a first direction going from the generator means (LS) towards the sample (EC), letting a second spectral band (BZ) pass, with predetermined spectral width (l) and centred on a chosen frequency corresponding to the wavelength of the exciting radiation ( lambda 0), and stopping a first spectral band (FZ), complementary with the second spectral band (BZ), whilst substantially simultaneously to this first filtering operation, the said filtering means furthermore filter the analysis radiation (ON) in a second direction which is opposite to the first direction, allowing the first spectral band (FZ) to pass and stopping the second spectral band (BZ).

    4.
    发明专利
    未知

    公开(公告)号:FR2681941B1

    公开(公告)日:1994-07-29

    申请号:FR9112061

    申请日:1991-10-01

    Applicant: DILOR

    Abstract: The filtering means filter the exciting radiation (EX) in a first direction going from the generator means (LS) towards the sample (EC), letting a second spectral band (BZ) pass, with predetermined spectral width (l) and centred on a chosen frequency corresponding to the wavelength of the exciting radiation ( lambda 0), and stopping a first spectral band (FZ), complementary with the second spectral band (BZ), whilst substantially simultaneously to this first filtering operation, the said filtering means furthermore filter the analysis radiation (ON) in a second direction which is opposite to the first direction, allowing the first spectral band (FZ) to pass and stopping the second spectral band (BZ).

    7.
    发明专利
    未知

    公开(公告)号:FR2664382B1

    公开(公告)日:1992-10-09

    申请号:FR9008407

    申请日:1990-07-03

    Applicant: DILOR

    Abstract: The invention relates to a spectrometry installation comprising an inlet, optical fiber means suitable for receiving an inlet beam and delivering a spectrally dispersed image of the beam which image is limited to a selected spectral band, a multi-channel detection module receiving said spectral image, and processor means. The optical filter means are provided with a deflector stage. Control means are associated with the optical deflector means to define the spectral band in terms of center frequency and band width, and control means are associated therewith for displacing the spectral image over the detection module. An electronic control unit is provided to control the control means and to control the processor means in a plurality of operating modes, each of which comprises joint control of the selected spectral band, of the displacement of the spectral image, and of the processor means, for the purpose of selectively using a particular set of detector components.

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