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DataRay Inc. - ISO 11146-Compliant Laser Beam Profilers

Bring Images to Life

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Michael R. Peres and Joseph Cowan

Making photographs at the microscope can be difficult. For example, magnification produces problems associated with the depth of field, and diffraction creates problems with image resolution.

One of the most difficult aspects of photographing through a microscope is creating image contrast, especially with thin, nearly transparent subjects. An early solution was the implementation of dark-field illumination, which involves using oblique-angle lighting from outside the lens's field of view. In this method, a white subject appears in front of a black background because light refracts to the lens from the subject.
Meadowlark Optics - Building system MR 7/23

Published: July 2000
ConsumerFeaturesMicroscopy

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