Phase Contrast Microscopy
Phase Plate/Ring Alignment
Concentric alignment of the condenser phase plate slits with the phase ring, positioned inside the objective, is of paramount importance in phase contrast microscopy. This tutorial explores the effect of phase plate/ring alignment on specimen contrast using this important microscopy technique.
Each time the tutorial is first downloaded or subsequently reloaded, a new set of alignment parameters is automatically initialized by the applet. To operate the tutorial, first adjust the specimen Focus and Intensity sliders to achieve the best possible image. Next, use the Phase Ring Position X and Y sliders to maximize specimen contrast. The Phase Telescope radio buttons will allow the visitor to toggle between viewing alignment of the phase ring/plate and the field view of the specimen. To ensure proper phase ring/plate alignment, first toggle the Phase Telescope radio button to the In position and use the sliders to align the plate outline within the phase ring. Then toggle the Phase Telescope out of the light path to view the specimen under optimum conditions of phase contrast illumination. The Reset button allows the visitor to randomly reset the applet.
Mortimer Abramowitz - Olympus America, Inc., Two Corporate Center Drive., Melville, New York, 11747.
Matthew J. Parry-Hill and Michael W. Davidson - National High Magnetic Field Laboratory, 1800 East Paul Dirac Dr., The Florida State University, Tallahassee, Florida, 32310.
BACK TO PHASE CONTRAST MICROSCOPY
BACK TO SPECIALIZED TECHNIQUES
Questions or comments? Send us an email.
© 1998-2021 by
Michael W. Davidson and The Florida State University.
All Rights Reserved. No images, graphics, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
Last modification: Tuesday, Sep 13, 2016 at 11:55 AM
Access Count Since August 25, 1999: 202165
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: