> Use a round flexible mirror. Place a large bass driver behind it (perhaps
> glue the mirror to the speaker?). Drive the speaker at 30 Hz and reflect
> a vector display in it. The mirror flexes with the sound causing changes
> in curvature that cause the vector monitor to sweep through a range of
> depths. Now you need to sync your vectors properly because time determines
> depth. Ya, it's hokey and makes a stupid hummm.
You could get a vastly superior degree of control if you used
an adaptive optics setup (like the spy satellites use to modify
their lenses to correct for atmospheric conditions). It would
require a pretty expensive piezoceramic array (like $5K if you
use bimorphs). The control system would probably be $10K, and
the software would probably be $50K worth of development time, unless
someone above average did it. Low on practicality, but very high
coolness factor.
Alex
http://www.elektronforge.com
ayeckley@elektronforge.com
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Received on Tue Apr 3 21:15:40 2001
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