Spectroscopic microscope with multi-mode illumination

Details Spectroscopic microscope with multi-mode illumination Spectroscopic microscope with multi-mode illumination

2008-01-29

2008-01-29

Allen, Stephone B. (Department: 2872)

Optical: systems and elements

Compound lens system

Microscope

C359S379000

Reexamination Certificate

active

07324272

ABSTRACT:
A spectroscopic microscope allowing both molecular spectrometry and visible microscopy of a sample has a light source for its spectrometer which provides Koehler illumination of the sample, i.e., light from points on the light source is projected across an area of the sample, as opposed to directly projecting an image of the light source onto the sample (as with critical illumination). However, the device may be adjusted to alternatively provide critical illumination of the sample, which is useful where spectrometric readings are to be obtained from a smaller area of the sample.

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“Field stop.” Academic Press Dictionary of Science and Technology. 1992. Xreferplus. Dec. 13, 2006 <http://www.xreferplus.com/entry/3104539>.

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