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

Inventor： MICHEL DELHAYE ,  EDOUARD DA SILVA ,  GERARD MARTINEZ

IPC: G01J3/02 ,  G01J3/18 ,  G01J3/44 ,  G02B5/00

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).

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

Inventor： MICHEL DELHAYE ,  EDOUARD DA SILVA ,  GERARD MARTINEZ

IPC: G01J3/02 ,  G01J3/18 ,  G01J3/44 ,  G02B5/00

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).