Leica Microsystems (schweiz) Ag

Patrick Kopf

Klaus-Peter Zimmer

Ruedi Rottermann

Otto Geschwentner

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 ().

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Altach, Austria

Patrick Kopf