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:
May. 26, 2015
Filed:
Sep. 13, 2012
Robert Lettow, Winterthur, CH;
Guenter Grabher, Lustenau, AT;
Robert Lettow, Winterthur, CH;
Guenter Grabher, Lustenau, AT;
LEICA MICROSYSTEMS (SCHWEIZ) AG, Heerbrugg, CH;
Abstract
A microscope includes a light source including an LED device having a light radiating surface and a light directing element including a larger coupling-out surface. The light directing element is disposed so as to couple in light radiated by the light source and couple out the radiated light from the coupling-out surface. The light directing element is disposed so that the light is radiated out in an angular range of ±10° to ±50° and illuminates an area at 5 meters in an angular range of at least ±5° with intensity fluctuations of less than 50%. A condenser is disposed between the coupling-out surface of the light directing element and the object to be viewed. The condenser has an aperture with an aperture dimension and is disposed such that the aperture is irradiated completely with the light coupled out from the coupling-out surface.