Device for the selection and detection of at least two spectral

Details Device for the selection and detection of at least two spectral Device for the selection and detection of at least two spectral

1997-08-13

1999-03-23

Hantis, K. P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01J 328

Patent

active

058867848

ABSTRACT:
Described is a device (16) for the selection and detection of at least two spectral regions in a beam of light (14), the device including a selection unit (25) and a detection unit (26). To ensure reliable simultaneous selection and detection of different spectral regions plus high yield and simplest possible construction, the device is designed such that the selection unit (25) comprises means (27) for splitting the light beam (14) up into its spectral components and means (28) for not only masking off a first spectral region (29) but also reflecting at least part (30) of the spectral region which is not masked off, and the detection unit (26) comprises a first detector (31) located in the path of the light in the masked-off first spectral region (29) and a second detector (32) located in the path of the light of the reflected spectral region (30).

REFERENCES:
patent: 3797942 (1974-03-01), Joly
patent: 4615619 (1986-10-01), Fateley
patent: 5216479 (1993-06-01), Dotan et al.
patent: 5225893 (1993-07-01), Whitney et al.
patent: 5424825 (1995-06-01), Delhaye et al.
Busch et al., "Multielement Detection Systems for Spectrochemical Analysis," 1990, pp. 192-195.
Bowron et al., "A New Spectrally Resolved Confocal Scanning Laser Microscope," Proceedings of Scanning, vol. 13, Supplement l, 1991, pp. l-76-l-77.

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