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US 8,301,030 B2Granted
Rotary joint
AssigneeSiemens Aktiengesellschaft
InventorsHans Kragl, Ulrich Wetzel
Life of this patent
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Abstract
A rotary transmitter having a first light-conducting hollow body, at least one transmitter for generating at least one optical signal and at least one receiver for receiving the optical signal is disclosed. The optical signal is transmitted from the transmitter to the receiver via the first light-conducting hollow body.
Claims20
A rotary joint, comprising:
- a first hollow body comprising a first light conducting material, the first light conducting material comprising an annular shape that is concentric with an axis of rotation of the rotary joint;
- a first transmitter for generating a first light signal;
- and
- a first receiver for receiving the first light signal,
- wherein the first light signal is transmitted from the first transmitter to the first receiver through the first light-conducting material.
2 more elements
A rotary joint, comprising:
- a first hollow body comprising a first light conducting material,
- a first transmitter for generating a first light signal;
- a first receiver for receiving the first light signal, wherein the first light signal is transmitted from the first transmitter to the first receiver through the first light-conducting material;
- and
- a second hollow body comprising a second light conducting material, wherein the first hollow body and the second hollow body are disposed coaxially and rotatably relative to each other;
- wherein the first and the second hollow bodies are disposed coaxially one inside the other at least in a partial region.
3 more elements
A rotary joint, comprising:
- a first hollow body comprising a first light conducting material;
- a first transmitter for generating a first light signal;
- a first receiver for receiving the first light signal, wherein the first light signal is transmitted from the first transmitter to the first receiver through the first light-conducting material;
- a second hollow body comprising a second light conducting material, wherein the first hollow body and the second hollow body are disposed coaxially and rotatably relative to each other;
- a second transmitter for generating a second light signal;
- and
- a second receiver for receiving the second light signal, wherein
- the first light signal is transmitted from the first transmitter to the first receiver through the first light-conducting hollow body but not through the second light-conducting material, and wherein
- the second light signal is transmitted from the second transmitter to the second receiver through the second light-conducting material but not through the first light-conducting material.
6 more elements
A rotary joint, comprising:
- a first hollow body comprising a first light conducting material;
- a first transmitter for generating a first light signal;
- a first receiver for receiving the first light signal, wherein the first light signal is transmitted from the first transmitter to the first receiver through the first light-conducting material;
- a second hollow body comprising a second light conducting material, wherein the first hollow body and the second hollow body are disposed coaxially and rotatably relative to each other;
- a second transmitter for generating a second light signal;
- a second receiver for receiving the second light signal, wherein the first light signal is transmitted from the first transmitter to the first receiver through the first and the second light-conducting materials, and wherein the second light signal is transmitted from the second transmitter to the second receiver through the second and the first light-conducting materials;
- and
- optical waveguides, wherein the first transmitter is connected to a first end face of the first hollow body by way of the optical waveguides for transmitting the first light signal, and wherein the second transmitter is connected to a first end face of the second hollow body by way of further optical waveguides for transmitting the second light signal.
5 more elements
Dependencies are inferred from the claim text.