Two-Channel Multimode Rotary Joint
AssigneeSchleifring und Apparatebau GmbH
InventorsGregor Popp, Andreas Philipp Seeger
Life of this patent
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Abstract
An optical two-channel rotary joint that is also suitable for coupling of single-mode fibers comprises two housing parts that are rotatable relative to each other. Each of these housing parts accommodates a light-waveguide for supplying light and a light-waveguide for withdrawing light. The arrangement has two optical paths adapted to operate in opposite directions, with each light-waveguide for supplying light being coupled with a light-waveguide for withdrawing light. Furthermore, one focuser is disposed on each of the light-waveguides for supplying light, which focuses the light of the light-waveguide for supplying light onto the corresponding light-waveguide for withdrawing light.
Claims8
Optical rotary joint, comprising:
- a first housing part and a second housing part connected to each other by means of a bearing unit to be rotatable about a rotation axis;
- a first optical path comprising a first light-waveguide on the first housing part for supplying light, and a second light-waveguide on the second housing part for withdrawing light;
- and
- a second optical path extending in an opposite direction and comprising a third light-waveguide on the second housing part for supplying light, and a fourth light-waveguide on the first housing part for withdrawing light;
- in which the second and fourth light-waveguides are disposed along the rotation axis, and
- the first and third light-waveguides are disposed laterally of the rotation axis at an angle to the rotation axis so that light beams supplied from end faces of the first and third light-waveguides are incident on end faces of the second and fourth light-waveguides, respectively;
- wherein a first focuser for focusing a light beam emitted by the first light-waveguide onto the end face of the second light-waveguide is provided at the end face of the first light-waveguide;
- and
- wherein a second focuser for focusing a light beam emitted by the third light-waveguide onto the end face of the fourth light-waveguide is provided at the end face of the third light-waveguide.
Dependencies are inferred from the claim text.