Electron microscope

Radiant energy – Electron energy analysis

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C250S310000, C250S3960ML

Reexamination Certificate

active

07977630

ABSTRACT:
There is disclosed an electron microscope that achieves low-magnification imaging while the objective lens is kept at high excitation in the same way as during high-magnification imaging. An objective minilens located immediately behind the objective lens demagnifies a specimen image magnified by the objective lens. Consequently, a sharply focused electron beam enters the first intermediate lens. This greatly reduces the effects of off-axis aberrations in the intermediate lenses. The first, second, and third intermediate lenses create a crossover image and a microscope image in the entrance window plane and entrance image plane, respectively, of an energy filter. The energy filter focuses the microscope image and crossover image onto the exit image plane and exit window plane, respectively. The output image from the filter is projected onto the final image plane by first and second projector lenses.

REFERENCES:
patent: 4789787 (1988-12-01), Parker
patent: 5414261 (1995-05-01), Ellisman et al.
patent: 6770887 (2004-08-01), Krivanek et al.
patent: 2002/0153484 (2002-10-01), Kaneyama
patent: 61-049363 (1986-03-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-2730680

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.