> But then you would also need a feedback mechanism to know the degree
> of
> rotation of the mirror, to know where you are looking (range finding).
Actually you wouldn't. You use an imager and place the scanning plane
at a oblique angle to the image plane. The distance is determined by
where the scanning plane intersects the image plane. The distance to
the object is determined by how high the scan line appears to be in
the image. It is done with triangulation.
It is difficult to describe with words and 2D drawings.
--
Brian Lloyd Granite Bay Montessori
brian AT gbmontessori DOT com 9330 Sierra College Blvd.
+1.916.367.2131 (voice) Roseville, CA 95661, USA
I fly because it releases my mind from the tyranny of petty things . . .
— Antoine de Saint-Exupéry
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PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C
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