Leica Microsystems (schweiz) Ag

Leica Microsystems Ag

Jacques Alain Déverin

Ulrich Sander

Roger Spink

Benno Moser

Juergen Mannss

The invention concerns an apparatus for simultaneous zero-degree and oblique illumination for an optical viewing device, in particular a stereoscopic surgical microscope, which contains a shiftable prism combination () for deflecting a first illumination sub-beam a long distance from the optical axis () of the main objective in order to obtain an oblique illumination beam () (oblique illumination), and for deflecting a second illumination sub-beam () a short distance from the optical axis () of the main objective in order to obtain a zero-degree illumination ().

Prism construction for simultaneous zero-degree and oblique illumination of a stereoscopic surgical microscope

A stereo microscope comprises: a main objective; a main observation output configured so that a left-hand beam path and a right-hand beam path are formed between the main objective and the main observation output; at least one input reflection beam splitter in each of the left-hand and right-hand beam paths configured to reflect additional information into its corresponding beam path; at least one output reflection beam splitter in at least one of the left-hand and right-hand beam paths; at least one first switchable shutter associated with at least one of the left-hand and right-hand beam paths, located in front of a corresponding input reflection beam splitter; and at least one second switchable shutter associated with at least one of the left-hand and right-hand beam paths, located between the main observation output and a corresponding output reflection beam splitter.

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Widnau, Switzerland

Jacques Alain Déverin