illustration shows the way the darkfield patch stop blocks the central
part of the light beam. The subject on the slide is illuminated while the
light rays do not enter the objective. Only the light refracted by the
subject enters the objective.
way the subject will appear light on a dark background.
Darkfield, oblique and bright field illumination
Visit Wims home page for links to his many web pages on microscopy
An Introduction to Microscopy
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