Optical waveguides – With optical coupler – Movable coupler
Reexamination Certificate
2006-05-09
2006-05-09
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Movable coupler
C385S027000, C385S033000, C385S050000, C385S051000, C398S116000
Reexamination Certificate
active
07043114
ABSTRACT:
The present invention concerns an apparatus for transmission of optical signals between a rotating part and a stationary part of a machine, particularly a computer tomograph, in which an optical transmitter is arranged on a first of the two parts and an optical receiver with an optical detector is arranged on a second of the two parts, via which optical signals emitted by the optical transmitter are received, whereby the optical receiver comprises an optical concentrator with an at least approximately horn-shaped geometry that concentrates incident optical radiation via internal reflection on side surfaces of the concentrator onto a detection area of the detector. The optical concentrator is formed from a material filling the entire inner volume of the concentrator and optically transparent for at least one wavelength with which the transmitter transmits. A signal-to-noise ratio improved relative to that of known apparatuses for data transmission can be achieved with the present apparatus.
REFERENCES:
patent: 3746454 (1973-07-01), Pace et al.
patent: 4259584 (1981-03-01), Krumme
patent: 4555631 (1985-11-01), Martens
patent: 4898450 (1990-02-01), Jannson et al.
patent: 4996435 (1991-02-01), Keller
patent: 5134639 (1992-07-01), Vekstein et al.
patent: 5229871 (1993-07-01), Czarnek et al.
patent: 5469488 (1995-11-01), Ono
patent: 5535033 (1996-07-01), Guempelein et al.
patent: 5847835 (1998-12-01), Fukunaga
patent: 6043916 (2000-03-01), Poisel et al.
patent: 6396613 (2002-05-01), Harrison et al.
patent: 6937787 (2005-08-01), Schilling et al.
patent: 2002/0081760 (2002-06-01), Whatmore
patent: 2004/0062344 (2004-04-01), Popescu et al.
patent: 44 21 616 (1995-03-01), None
Oliver Graydon, ,,Optical antenna enhances IR links, Opto & Laser, Europe, Dec. 2002, Issue 101, p. 9.
Femto second pulses generate microstructures, Opto & Laser Europe, Dec. 2002, Issue 101, pp. 22-23.
Oliver Graydon, ,,A plastic lens with a high light-collecting efficiency could revolutionize infrared “point-and-pay schemes”, OLE, 13. Dec. 2002.
Font Frank G.
Mooney Michael P.
Schiff & Hardin LLP
Siemens Aktiengesellschaft
LandOfFree
Apparatus to transfer optical signals between a rotating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus to transfer optical signals between a rotating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus to transfer optical signals between a rotating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3546453