Carl Zeiss Microscopy Gmbh

Holger Richter

Renhu Shi

Ingo Fahlbusch

Georg Herbst

Werner Kleinschmidt

Matthias Gonschor

Michael Gögler

Harald Schadwinkel

Carsten Hoyer

Jörg Schaffer

Robin Zur Nieden

The invention relates to a zoom objective lens with continuously adjustable magnification, comprising five lens groups, where the first lens group, the second lens group and the fifth lens group are fixed in relation to an object. The third lens group and the fourth lens group are axially displaceable. The following conditions apply to the lens:

Zoom objective lens

An immersion objective for a light microscope with a first lens group including a first and second lenses, with a third lens arranged behind the first lens group, a first air gap between the first lens group and the third lens, with a second lens group behind the third lens and including fourth, fifth and sixth lenses, a second air gap formed the third lens and the second lens group, and a third lens group behind the second lens group including seventh, eighth and ninth lenses. Tenth, eleventh and twelfth lens are provided behind the third lens group. For correction of aberrations a fourth air gap is formed between the third lens group and the tenth lens, a fifth air gap is formed between the tenth lens and the eleventh lens and a sixth air gap is formed between the eleventh lens and the twelfth lens.

Immersion objective and light microscope

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Neu-Eichenberg, Germany

Holger Richter