Multi-channel optical rotary transmission device with high return loss

US7965943B2 · kind B2 · utility

Assignee

• SCHLEIFRING UND APPARATEBAU GMBH · DE

Inventors

• Gregor Popp · Munich, DE
• Josef Brau · Munich, DE
• Matthias Rank · Fürstenau, DE

Key dates

• Filing date: Dec 21, 2007
• Grant date: Jun 21, 2011
• Expiry date: Feb 14, 2030

Classification

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

Abstract

An optical rotating data transmission device comprises a first collimator arrangement for coupling-on first light-waveguides, and a 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 Dove prism is provided between the collimator arrangements as a derotating element. Furthermore, the collimator arrangements pre provided with adapter elements having rotationally symmetrical conical faces. Prism adapter elements are disposed on the end faces of the Dove prism and have prism adapter elements on the sides facing the collimator arrangements. These also have rotationally symmetrical conical faces with a surface configuration that is inverse to that of the adapter elements of the collimator arrangements.