Olin Lathrop wrote:

> Daniel Chia wrote:
> 
>>As for moving the mirror, my I suggest perhaps two servos, one
>>mounted to provide yaw and the other tilting vertically. Perhaps
>>something like one of the cheap mirrors that can rotate about one axis
>>on their holder can be modified.
> 
> 
> I believe the professional ones, like those from General Scanning, work on
> the same principle as meter movements.

Not quite.
Meters use 'moving coil'. GS and Cambridge Technology use 'moving iron'.
The moving part is iron with tabs on it, and the tabs rotate
past the stator poles under the influence of the coils.
It's a force balancing trick.

http://www.laserfx.com/Works/Works3S.html


Robert

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