Sampling spectrophotometer comprising an interferometer

Details Sampling spectrophotometer comprising an interferometer Sampling spectrophotometer comprising an interferometer

2006-11-29

2008-10-21

Lyons, Michael A (Department: 2877)

Optics: measuring and testing

By light interference

Spectroscopy

Reexamination Certificate

active

07440107

ABSTRACT:
A sampling spectrophotometer comprising an interferometer is used for performing a spectral analysis of light produced by a source. The sampling is adapted for eliminating uncertainty in the frequencies that are associated with spectral components deduced from an interferogram. Preferably, the interferometer is of Michelson type, and is equipped with at least one staircase mirror in one of the two optical paths. Elementary reflecting strips of the staircase mirror can then be offset with respect to one another according to a variable step.

REFERENCES:
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patent: 5164786 (1992-11-01), Delhaye et al.
patent: 6351307 (2002-02-01), Erskine
patent: 6963405 (2005-11-01), Wheel et al.
patent: 7170610 (2007-01-01), Knuttel
patent: 1 503 192 (2005-02-01), None
French Preliminary Search Report FR 0512208; report dated Aug. 31, 2006.

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