phase-contrast microscope

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Related to phase-contrast microscope: Interference microscope

phase-contrast microscope:

see microscopemicroscope,
optical instrument used to increase the apparent size of an object. Simple Microscopes

A magnifying glass, an ordinary double convex lens having a short focal length, is a simple microscope. The reading lens and hand lens are instruments of this type.
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phase-contrast microscope

[′fāz ¦kän‚trast ′mī·krə‚skōp]
A compound microscope that has an annular diaphragm in the front focal plane of the substage condenser and a phase plate at the rear focal plane of the objective, to make visible differences in phase or optical path in transparent or reflecting media.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
After incubation, the sample was mixed gently and examined under a phase-contrast microscope (40x).
After grapes that were not completely healthy are processed, take a sample from the tank and examine it under the phase-contrast microscope for bacteria and yeast.
Phase-contrast microscope is an interference microscope in which contrast is enhanced by altering the optical path of the diffracted ray with respect to the direct ray.
Five straws from each treatment [BHT (0.0 2.0 and 5.0 mM)] were thawed and evaluated under phase-contrast microscope (40 A-) for sperm motility whereas sperm viability plasma membrane integrity and acrosomal integrity were assessed by the supravital staining hypo-osmotic swelling test (HOST) and normal acrosomal reaction respectively.
Percentage of motility was judged under a phase-contrast microscope at X400 as previously described by Asr et al.

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