Patent ID: 7085082

Claim:
An objective pivoting device ( 1 ) for pivoting an objective concentrically arranged therein, about two mutually perpendicular axes (A—A; M—M) that cross at a point of intersection on the optical axis of the objective, wherein the objective is held in an objective holder ( 53 ) and the same is supported pivoting in bearings ( 15 , 40 ) in two degrees of freedom of a spherical surface ( 16 ) and these bearings ( 15 , 40 ) are disposed on a stationary holding frame ( 17 ) on which two pivoting adjustment means ( 20 , 21 ) are provided, one of which is operatively linked with meridionally diametrical bearing elements ( 15 ), and the other one with equatorially diametrical bearing elements ( 15 ) of the objective holder ( 53 ) in each case, and wherein the latter have a compensating degree of freedom, characterized in that the compensating degree of freedom of the equatorial bearing elements ( 15 ) is provided in each case through a pivotability in a bearing element ( 40 ) on the holding frame or by a displaceability in a given meridional plane on the objective holder ( 53 ) and that the pivoting adjustment means ( 20 , 21 ) in each case comprise a cable drive with three cable sections ( 20 A– 20 C; 21 A– 21 C), the first cable section ( 20 A; 21 A) of which is guided from a coil around the adjustment shaft ( 22 A; 23 A) to the first of the bearing elements ( 15 , 40 ) and the second cable section ( 20 B, 21 B) from this bearing element to a second bearing element ( 15 , 40 ) that is coaxial to the former, and the third cable section ( 20 C, 21 C) is guided back from it to a second coil ( 22 B, 23 B) around the adjustment shaft ( 22 C, 23 C) of the pivoting adjustment means ( 20 , 21 ), and that the two cable sections ( 20 A, 20 B; 20 B, 20 C; 21 A, 21 B; 21 B, 21 C) that act upon one of the bearing elements ( 15 , 40 ) meet in each case in the given bearing element on its associated swiveling axis (A–M, M–A) in a pivoting region of a bearing shield ( 31 – 34 ) of the bearing element and are fixed on the bearing shields ( 31 – 34 ) in each case in an associated manner at one and the other end of an equatorial or meridional guide channel, into which a guide deflection roller ( 39 ) engages in a guiding manner in each case.