Patent ID: 7729571

Claim:
An optical rotary joint, comprising: at least one first collimator arrangement for coupling-on first light waveguides; a second collimator arrangement for coupling-on second light waveguides, supported to be rotatable relative to the first collimator arrangement about a rotation axis; at least one derotating optical element located in a light path extending between the first collimator arrangement and the second collimator arrangement; with at least one collimator arrangement comprising at least one support plate on which at least one rod-shaped lens for coupling-on at least one of the light-waveguides is fastened; with a direction of emergence of a light beam from the at least one rod-shaped lens being parallel to the rotation axis; and wherein an axis of the at least one rod-shaped lens extends at a given angle to the rotation axis, said angle lies in between 0.1°-15°.