The invention concerns an apparatus for illuminating a viewing field by means
of two light sources. The beam paths of the two light sources are guided through
a combining flexible light guide, a common flexible light guide, and a separating
flexible light guide splitter. One of the two beam paths is directed to the microscope
as principal illumination, and the other beam is directed to a handpiece. In addition,
at least one of the two light sources can be configured as an interchangeable unit
having two individual light sources.
