Spectroscope with spatial resolution control

Details Spectroscope with spatial resolution control Spectroscope with spatial resolution control

2007-08-28

2008-11-25

Evans, F. L (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

C356S326000, C250S339070, C359S350000

Reexamination Certificate

active

07456950

ABSTRACT:
In a spectrometer, preferably in a spectrometric microscope, light from a specimen is collected at a collector objective element and delivered to a camera element, which in turn provides the light to a photosensitive detector. A focal plane is provided between the collector objective element and the camera element, and one or more aperture arrays may be situated in the focal plane to restrict the detector's field of view of the specimen to the areas within the apertures. By utilizing aperture arrays with apertures of different sizes and shapes, the spatial resolution of the spectrometer readings may be varied without the need to vary the optics of the spectrometer. As a result, if the optics are optimized to minimize vignetting, spatial resolution may be varied without adverse increases in vignetting.

REFERENCES:
patent: 5587832 (1996-12-01), Krause
patent: 5978095 (1999-11-01), Tanaami
patent: 2002/0033452 (2002-03-01), Hoult et al.
patent: 2002/0034000 (2002-03-01), Hoult et al.
patent: 2006/0202124 (2006-09-01), Hoult et al.

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