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

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 (3) for deflecting a first illumination sub-beam a long distance from the optical ax...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SANDER ULRICH, DEVERIN JACQUES ALAIN
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DIAGNOSIS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PHYSICS PROSTHESES SURGERY TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	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 (3) for deflecting a first illumination sub-beam a long distance from the optical axis (12) of the main objective in order to obtain an oblique illumination beam (9) (oblique illumination), and for deflecting a second illumination sub-beam (8) a short distance from the optical axis (12) of the main objective in order to obtain a zero-degree illumination (8).