Optical "Slip ring"

[legg]

On Mon, 16 Jun 2008 22:07:05 -0400, Spehro Pefhany

just a test. two posts to this thread have not shown up so far, but
both issues are addressed by other posts.

Is this a two-way communication requirement?

How close to the axis of rotation can it be? On-axis?

RL