Chris,

Make a conventional Lehman (500 mm boom). =20

Take a tiny front-surface mirror and make a separate, small, torsion=20
suspension for it with a 1 cm lever.  Lightly couple (#46 wire?) the=20
10 mm mirror lever directly to the mass of the Lehman=20
so that when the Lehman mass "moves" the mirror is rotated on its=20
(separate) axis.

It's like a Wood-Anderson suspension/mirror coupled to a Lehman mass.

If words have failed me again, I'll post a sketch.=20

Jack

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