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

Bausch & Lomb StereoZoom Binocular Stereomicroscope

In 1959, Bausch & Lomb introduced an innovative stereomicroscope that was equipped with continuously variable, or zoom, magnification. Inspired by the basic Greenough design, this instrument, which was dubbed the StereoZoom, was the first commercial stereomicroscope devoid of erecting prisms.

The StereoZoom was generally the same size and shape as its primary competitor, the American Optical Cycloptic. Both instruments had a magnification range of 0.7x to 3.0x and comparable working distances. The StereoZoom, however, could be differentiated by its inclusion of a new Bausch & Lomb development: four first-surface mirrors with enhanced aluminum coatings, which were situated in a manner that enabled them to execute the functions of inclination prisms and Porro erecting prisms. The novel design facilitated erect images, and a specimen viewed through its eyepieces had the same physical orientation as it did on the on the microscope stage. The effect was particularly useful in stereomicroscopy because microscopists are often obliged to perform interactive manipulations on specimen while under examination. Activities such as dissection, industrial assembly, and microinjection can be more conveniently conducted when the microscopic images viewed are erect.

Since the StereoZoom did not contain prisms, the instrument was produced and sold for a lower cost than many other microscopes, and was also lighter in weight. The basic microscope system was called the Power Pod and could be supplemented by an enormous array of auxiliary lenses, eyepieces, illuminators, arms, and stands. The microscope and its complementing products were fashionably designed in a style that endured for more than 40 years. A rapid emergence of the semiconductor industry in the 1980s, which quickly adopted the use of the StereoZoom, further helped ensure the instrument's success and long-lived use. The unique design continuously dominated the stereomicroscope market until its production was finally halted in 2000.

BACK TO TWENTIETH CENTURY BAUSCH & LOMB MICROSCOPES

BACK TO TWENTIETH 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 January 8, 2003: 19567
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: