Spectrum splitting spectroscopic apparatus

Spectrum splitting spectroscopic apparatus

PCT No. PCT/GB95/01190 Sec. 371 Date Jan. 16, 1996 Sec. 102(e) Date Jan. 16, 1996 PCT Filed May 24, 1995 PCT Pub. No. WO95/32408 PCT Pub. Date Nov. 30, 1995In a Raman spectrometer having a charge-coupled device (CCD) detector (24), an incoming beam (36) containing a spectrum of Raman scattered light...

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Bibliographische Detailangaben
Hauptverfasser: SMITH, BRIAN J. E, BATCHELDER, DAVID N, BALDWIN, KURT J
Format: Patent
Sprache:eng
Schlagworte:
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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Zusammenfassung:PCT No. PCT/GB95/01190 Sec. 371 Date Jan. 16, 1996 Sec. 102(e) Date Jan. 16, 1996 PCT Filed May 24, 1995 PCT Pub. No. WO95/32408 PCT Pub. Date Nov. 30, 1995In 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.