The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2001
Filed:
Feb. 14, 2000
Douglas M. Knight, Stockton, NJ (US);
Robert Machemer, Durham, NC (US);
Ronald F. Overaker, Durham, NC (US);
Brian C. Dodge, Hillsborough, NC (US);
Other;
Abstract
A stereoscopic, long-distance microscope is capable of stereoscopically viewing targets within the range of 100 mm to 300 mm from the front lens element. The system preferably comprises: a front lens element having a diameter D,for receiving light rays from the target; a rear mirror having a diameter D,for receiving light rays from the front lens element; a secondary mirror located on the rear surface R,of the front lens element for receiving light reflected from the rear mirror element; and, an angled mirror located between the secondary mirror and the stereoscopic eyepiece in its turn receiving light rays reflected from said angled mirror and presenting them to both eyes of the viewer. The diameter D,of the front lens element is preferably significantly smaller than the diameter D,of the rear mirror element.