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. 01, 2008
Filed:
Nov. 23, 2005
Ruedi Rottermann, Berneck, CH;
Patrick Kopf, Altach, AT;
Otto Geschwentner, Balgach, CH;
Klaus-peter Zimmer, Heerbrugg, CH;
Ruedi Rottermann, Berneck, CH;
Patrick Kopf, Altach, AT;
Otto Geschwentner, Balgach, CH;
Klaus-Peter Zimmer, Heerbrugg, CH;
Leica Microsystems (Schweiz) AG, Heerbrugg, CH;
Abstract
The invention relates to a transmitted-light base () for illuminating an object () for imaging through a zoom microscope (), the transmitted-light base () comprising an integrated light source () having an associated electrical power regulation system () for generating a suitable radiation flux, and means (), capable of being added downstream, for generating a specified spectral intensity distribution. To allow compensation for brightness changes of low dynamic range, such as those occurring in particular during zooming, a continuously controllable mechanical brightness regulator () is proposed which is activatable by means of an associated adjustment device () in such a way that the illumination intensity of the transmitted-light base () is controllable with no change in the spectral intensity distribution. The brightness regulator () is arranged close to the light exit side of a reflector lamp () used as the light source, or, when a lamp () and collector lens () are used as the light source, close to the collector lens ().