Patent ID: 7965943

Claim:
Optical rotating data transmission device comprising: at least one first collimator arrangement for coupling-on first light-waveguides; at least one second collimator arrangement for coupling-on second light-waveguides, which is supported to be rotatable relative to the first collimator arrangement about a rotation axis; a derotating optical element located in a light path between the first collimator arrangement and the second collimator arrangement; a first prism adapter element and a second prism adapter element located in the light path, each disposed on a respective side of the one derotating optical element; and wherein the collimator arrangements comprise adapter elements located in the light path and having on their sides facing the one derotating optical element at least one rotationally symmetrical conical face, and the prism adapter elements have faces configured to be inverse thereto, each comprising at least one rotationally symmetrical and oppositely directed conical face.