Optical communication link for medical imaging gantry having con

Details Optical communication link for medical imaging gantry having con Optical communication link for medical imaging gantry having con

1992-06-05

1994-10-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

378 19, G02B 2700

Patent

active

053549937

ABSTRACT:
A system that enables the communication of data and control signals between the rotor and the stator of a gantry using light transmitters and light receivers. The transmitters are attached to the gantry is such a manner that the light beams are transmitted in a direction that traverses the radial direction of the rotor of the gantry and also traverses a line parallel to the axis of rotation of the rotor. Further, the light beam from the transmitter to the receiver is shaped to minimize the dynamic range of the light flux variation. The light beams from transmitter to receiver are substantially direct line of sight beams and are not reflected through any light channels or carried in any optical transmitting means such as fibre glass.

REFERENCES:
patent: 4259584 (1981-03-01), Krumme
patent: 4796183 (1989-01-01), Ermert et al.
patent: 4912735 (1990-03-01), Beer
patent: 5134639 (1992-07-01), Vekstein et al.

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