Optical fiber spectrometer/colorimeter apparatus
AssigneeBertin & Cie
InventorsMichel Lequime, Jocelyn Millet, Jean Debrie
Life of this patent
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Abstract
The invention relates to a spectrometer/colorimeter apparatus comprising an opto-electronic card (12) with the essential components of the apparatus mounted thereon, and in particular a spectrometer (14) having an inlet slot (16) and a strip (18) of photodetectors (20), and two optical fiber measurement paths (28) and two calibration paths (26), with the ends of the optical fibers being superposed in the inlet slot (16) of the spectrometer. The apparatus is particularly intended for use in an industrial environment.
Claims16
An optical fiber spectrometer/colorimeter apparatus suitable for operating as a spectrometer and as a colorimeter, the apparatus comprising a spectrometer (14) including an inlet (16) and a mosaic of photodetectors (20), characterized in that it is essentially constituted by the association of a controlling microprocessor (10) and an opto-electronic printed circuit card (12) bearing the following items:
- at least two optical fiber measurement paths (28) ending at the inlet (16) of the spectrometer, and fitted with shutters (34) enabling the measurement paths to be switched ;
- wavelength calibration means for the detectors (20), comprising two reference emitters (24) connected by optical fiber calibration paths (26) to the inlet (16) of the spectrometer ;
- the spectrometer (14) including the mosaic of detectors (20) ;
- and
- electronic circuits (22) for reading the detectors (20).
Dependencies are inferred from the claim text.