公开(公告)号：EP0711408A1

公开(公告)日：1996-05-15

申请号：EP95919558.0

申请日：1995-05-24

Applicant: RENISHAW plc

Inventor： SMITH, Brian John Edward ,  BATCHELDER, David Neville ,  BALDWIN, K.J., Molecular Physics & Instrument Grp

IPC: G01J3

CPC classification number: G01J3/44 ,  G01J3/0202 ,  G01J3/021 ,  G01J3/18 ,  G01J3/28 ,  G01J3/36

Abstract: In a Raman spectrometer having a charge-coupled device (CCD) detector (24), an incoming beam (36) containing a spectrum of Raman scattered light is dispersed by a diffraction grating (44). Different parts of the spectrum are split into separate optical paths (48A-C) by edge filters (38A, 38B) and a mirror (46). These components are tilted at different vertical angles, so that after the beams (48A-C) have been dispersed by the diffraction grating (44), they form partial spectra (50A-C), one above the other on the CCD (24). This enables several consecutive parts of a widely dispersed spectrum to be viewed simultaneously on the CCD (24) at high resolution.

公开(公告)号：EP0711408B1

公开(公告)日：2000-01-12

申请号：EP95919558.7

申请日：1995-05-24

Applicant: RENISHAW plc

Inventor： SMITH, Brian John Edward ,  BATCHELDER, David Neville ,  BALDWIN, K.J., Molecular Physics & Instrument Grp

IPC: G01J3/44 ,  G01J3/18 ,  G01J3/28

CPC classification number: G01J3/44 ,  G01J3/0202 ,  G01J3/021 ,  G01J3/18 ,  G01J3/28 ,  G01J3/36

Abstract: In a Raman spectrometer having a charge-coupled device (CCD) detector (24), an incoming beam (36) containing a spectrum of Raman scattered light is dispersed by a diffraction grating (44). Different parts of the spectrum are split into separate optical paths (48A-C) by edge filters (38A, 38B) and a mirror (46). These components are tilted at different vertical angles, so that after the beams (48A-C) have been dispersed by the diffraction grating (44), they form partial spectra (50A-C), one above the other on the CCD (24). This enables several consecutive parts of a widely dispersed spectrum to be viewed simultaneously on the CCD (24) at high resolution.