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

Benjamin Martin's
Second Universal Microscope

The Second Universal microscope was introduced by Benjamin Martin in 1742 as an improvement over his First Universal microscope, which was a new innovation of the time period.

The major improvement of this microscope over the first version was removal of the threads on the central pillar and the addition of a wooden base to stabilize the microscope. Positioning of the specimen stage could now be accomplished by sliding it up and down on the pillar and securing it with a small clamp screw. This additional freedom of movement also allowed for greater latitude when viewing samples from side to side. Addition of a substage concave reflecting mirror also helped to increase the illumination used to view the samples.

BACK TO EIGHTEENTH CENTURY MICROSCOPES

Questions or comments? Send us an email.
© 1998-2022 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, Nov 13, 2015 at 02:19 PM
Access Count Since April 6, 1999: 59352
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: