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.
© 1998-2013 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.
Last modification: Friday, Aug 01, 2003 at 11:43 AM
Access Count Since April 6, 1999: 49031
For more information on microscope manufacturers,
use the buttons below to navigate to their websites: