Raman microscope

Details Raman microscope Raman microscope

1996-05-31

1997-04-22

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With raman type light scattering

356419, G01J 344, G01N 2165

Patent

active

056233426

ABSTRACT:
In a Raman microscope, Raman scattered light from an illuminated area on a sample 10 is collected by an objective 12 and imaged by a lens 18 onto a detector in an image plane 20. A filter 16 selects only light of a desired Raman wavenumber shift. Since the tuning of this filter is sensitive to the angle of incidence, it is placed after the lens 18 instead of before it, and the distance from the objective 12 to the lens 18 is made substantially equal to the focal length of the lens 18. This ensures that chief rays 14A',14B' from different points on the sample 10 pass through the filter 16 at the same angle of incidence. The wavenumber selected by the filter is therefore the same for light from all points on the sample, which it would not be if the filter were placed before the lens 18.

REFERENCES:
patent: 4081215 (1978-03-01), Penney et al.

Affiliated with

Also associated with

Rating

Raman microscope does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Raman microscope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raman microscope will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-345132