Microscopy Primer
Light and Color
Microscope Basics
Special Techniques
Digital Imaging
Confocal Microscopy
Live-Cell Imaging
Photomicrography
Microscopy Museum
Virtual Microscopy
Fluorescence
Web Resources
License Info
Image Use
Custom Photos
Partners
Site Info
Contact Us
Publications
Home

The Galleries:

Photo Gallery
Silicon Zoo
Pharmaceuticals
Chip Shots
Phytochemicals
DNA Gallery
Microscapes
Vitamins
Amino Acids
Birthstones
Religion Collection
Pesticides
BeerShots
Cocktail Collection
Screen Savers
Win Wallpaper
Mac Wallpaper
Movie Gallery

Browning Polarized Light Microscope

This brass compound microscope was designed and constructed by London instrument maker John Browning at the end of the American Civil War in 1865.

The original microscope is part of the Royal Microscopical Society collection and has been described in detail by Gerard Turner. Most of the microscope is constructed of polished brass with the exception of the mirror assembly and limb, which are finished in blackened brass. A calibrated rotating ring is fitted into the stage that allows for quantitative polarized light microscopy. The reflecting mirror is quite unique in that it is composed of a series of thin glass plates that reflect polarized light when positioned at the Brewster angle of 57 degrees with respect the optical path. There is an auxiliary eyepiece fitted with a revolving and calibrated Nicole prism for work under crossed-polarized illumination that screws on top of the standard eyepiece. A number of interchangeable objectives are available for the microscope.

BACK TO NINETEENTH CENTURY MICROSCOPES

Questions or comments? Send us an email.
© 1998-2013 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.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Friday, Aug 01, 2003 at 11:43 AM
Access Count Since April 15, 1999: 41362
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: