US 6,982,825 B2
Stereomicroscope
Ulrich Sander, Rebstein (Switzerland)
Assigned to Leica Microsystems (Schweiz) AG, Heerbrugg (Switzerland)
Filed on Nov. 25, 2003, as Appl. No. 10/721,566.
Claims priority of application No. 102 55 961 (DE), filed on Nov. 29, 2002.
Prior Publication US 2004/0136059 A1, Jul. 15, 2004
Int. Cl. G02B 21/22 (2006.01)
U.S. Cl. 359—377 16 Claims
OG exemplary drawing
 
1. A stereomicroscope comprising:
an objective (6) having an optical axis (6a);
a zoom system (8) downstream of the objective, the zoom system having a plurality of axes (9, 8a′, 8b′, 8c′, 8d′) wherein at least one of the plurality of axes of the zoom system forms an angle with the optical axis (6a) of the objective;
another axis (15) extending substantially parallel to the at least one axis of the zoom system
a plurality of deflector elements (10, 12a to 12e), by means of which at least one observation beam emerging from the objective (6) can be guided into the zoom system (8) and at least one observation beam emerging from the zoom system (8) can be guided on to the other axis (15); and
at least one optical element (19) on the plurality of axes (9, 8a′, 8b′, 8c′, 8d′) of the zoom system and/or on the other axis (15) for extending the beam path of the at least one observation beam in a direction substantially parallel to the at least one axis of the zoom system (8) and/or to the at least one axis (15) parallel thereto.