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:
Nov. 08, 2005
Filed:
May. 23, 2003
Rex A. Hoover, Sumerduck, VA (US);
Robert G. Hoover, Sumerduck, VA (US);
Rex A. Hoover, Sumerduck, VA (US);
Robert G. Hoover, Sumerduck, VA (US);
Other;
Abstract
A light diffuser for use in illumination systems of optical microscopes which utilize a light source to illuminate a specimen staged on the microscope for observation. The light diffuser includes a light diffusing plate made of opal glass positioned closely adjacent the specimen. The light diffusing plate randomly breaks up light transmitted from a light source which passes therethrough into spatially isotopic light. The isotropic light illuminates the specimen for observation of a specimen image through the microscope with substantially reduced diffraction shadows which obscure the specimen. The light diffuser is utilized as part of an illumination lens system for microscopes and a method of use thereof which includes a plurality of lenses, an aperture diaphragm, and a field diaphragm which allow adjustment of the contrast and field of illumination of the image.