The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2008
Filed:
Sep. 16, 2005
Harry Schilling, Eichstaett, DE;
Thomas Tartler, Moorenweis, DE;
Hans Thiele, Munich, DE;
Georg Lohr, Eichenau, DE;
Rainer Hutterer, Munich, DE;
Matthias Rank, Wilmering, DE;
Harry Schilling, Eichstaett, DE;
Thomas Tartler, Moorenweis, DE;
Hans Thiele, Munich, DE;
Georg Lohr, Eichenau, DE;
Rainer Hutterer, Munich, DE;
Matthias Rank, Wilmering, DE;
Schleifring und Apparatebau GmbH, Fuerstenfeldbruck, DE;
Abstract
An optical transmission system in a computer tomograph for transmitting modulated optical signals between a first unit and a second unit, the first unit being supported to be rotatable relative to the second unit, comprises: a light guide disposed along a circular or annular track on the first unit; at least one first light coupler connected with the light guide for coupling light into or out of the light guide; at least one second light coupler disposed on the second unit to be movable relative to the light guide for coupling light into or out of the light guide. In order to remove from the light guide surface any contaminating matter that would lead to a high signal attenuation or an interference with transmission, a cleaning unit is provided for removing dirt and dust particles. Furthermore, a sealing of the system is provided by applying, amongst other means, pressurized air or electrostatic filtering.