Rotary scanning device

摘要

A rotary scanning device having a stationary upper and lower drum (1,2) is proposed, in which a cylindrical insert (15) with a servo head (16) is arranged in a radial bore (14) in the lower drum (2). The cylindrical insert (15) is secured to the circumference of a ring (18) which is concentrically supported in the lower drum (2) and which has an axial groove (19) in its circumferential surface for the adjustment of the angular position of the ring (18).