Arrangement comprising two elements which can be rotatably...

Details Arrangement comprising two elements which can be rotatably... Arrangement comprising two elements which can be rotatably...

2008-12-09

2009-12-08

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Signal isolator

C250S227110, C385S025000, C398S141000

Reexamination Certificate

active

07629600

ABSTRACT:
Data is to be exchanged between a rotating element and a further element, with the rotating element being rotated by way of a hollow shaft. Light is coupled into torus halves and is reflected into a torus half and onto torus inner walls so often by way of a small opening until it exits at an opening of the other torus half. In a first embodiment, a torus-shaped optical fiber is divided into two torus halves. In another embodiment, hollow tori are used, which are filled with a fluid, namely either with a liquid or with air.

REFERENCES:
patent: 4525025 (1985-06-01), Hohmann et al.
patent: 7149382 (2006-12-01), Schilling et al.
patent: 2004/0062344 (2004-04-01), Popescu et al.
patent: 2005/0013535 (2005-01-01), Popescu
patent: 2006/0127098 (2006-06-01), Schilling et al.
patent: 10 2006 054 052 (2008-05-01), None

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