Method for taking a spatially resolved spectrum by means of...

Details Method for taking a spatially resolved spectrum by means of... Method for taking a spatially resolved spectrum by means of...

2005-08-16

2005-08-16

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By light interference

Spectroscopy

Reexamination Certificate

active

06930780

ABSTRACT:
A method for taking a spatially resolved spectrum, in particular an infrared (IR) spectrum, of a sample by means of a Fourier-transform (FT)-spectrometer, is described wherein light emitted by a light source is fed to an interferometer, directed onto the sample and detected by an array-detector, wherein a movable reflector of the interferometer is displaced over a distance s and the array-detector is read out at a number n of predetermined discrete way points s1, . . . , snof the distance s, respectively. When the movable reflector is displaced over the distance s, the array-detector is first read out at respective non-adjacent way points sdseparated by at least one respective intermediate way point si, and that the movable reflector is displaced over the distance s at least twice, wherein the array-detector is read out at the way points siupon a second or further repeated displacement over the distance s.

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patent: 199 40 981 (2001-07-01), None
patent: WO 01/06209 (2001-01-01), None

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