Two-channel multimode rotary joint

US7724996B2 · kind B2 · utility

Assignee

• SCHLEIFRING UND APPARATEBAU GMBH · DE

Inventors

• Gregor Popp · Munich, DE
• Andreas Seeger · Munich, DE

Key dates

• Filing date: Jan 22, 2008
• Grant date: May 25, 2010
• Expiry date: Jan 22, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/3604
• WIPO field: Optics
• WIPO sector: Instruments

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.