Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1985-07-26
1987-02-24
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
G01J 304, G01J 320
Patent
active
046453440
ABSTRACT:
An optical device having a Paschen-Runge mounting arrangement, suitable for splitting up the polychromatic light emitted when the sample to be analyzed is being excited, comprising a frame (1) having the shape of a circle sector, an inlet slit (21) illuminated by polychromatic light, a concave diffraction grating (4) which diffracts the bundle of polychromatic light coming from the inlet slit, outlet slits (51) worked into a slit-carrier (5) and selecting the monochromatic bundles coming from the grating, and detectors for measuring the light fluxes of the monochromatic bundles. The slit-carrier (5) consists of a flexible continuous metal ribbon, and the cylindrical support bearings (122), which serve as supports for the slit-carrier, form part of the frame and are situated on either side of an aperture for the passage of monochromatic bundles, the ends of this ribbon being fixed to the frame (1). The device is intended to be mounted in a direct reading emission spectrometer.
REFERENCES:
patent: 4340303 (1982-07-01), Grisar et al.
Evans F. L.
Instruments S.A.
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