Re: ATM Active mirror figure correction?

[Dwight Elvey <elvey@hal.com>]

Lawrence Sayre <lsayre@stratos.net> wrote:
> Is it possible to glue a small "swivel level" pad onto the dead center
> of the back side of this mirror (using an appropriate glue, such as the
> glue used to adhere the rear view mirror to a windshield), and then pass
> the swivel level bolt through the back side of the cell (where it would
> be as accessible as the three collimation bolts), and then torque a nut
> on the swivel level bolt to literally pull this thin plate glass mirror
> into a good parabolic curve?  

Hi
 One could use a small hydraulic or pneumatic cylinder
to pull with. It could be setup so that it also compensated
for the angle of gravity. When pointed up, it would need a
little less than when at an angle. Something like Tom's
spring compensator.
Dwight