Mirror bending system

The bending system offers elliptical longitudinal shaping to a flat or toroidal mirror installed into a vacuum chamber.
The bending system can be adapted to different types of mirrors :
- length 600 to 1400 mm
- material Si, SiC, SiO2, Zerodur®.

Design features
It consists in applying two controlled bending moments, by means of two electrical actuators, at each extremity of a mirror.
The moments are controlled independently and enable to obtain elliptical curvatures as easily as cylindrical ones.
The bending system is an independent assembly.
It consists of a rigid frame, equipped at each end with bending rollers, controlled by means of one electrical actuator.
Each actuator consists of a stepper motor, associated to a screw-nut device which, by means of an elastic system, applies a strength on the bending rollers.
The whole assembly is contained in a vacuum-tight box.
Direct reading of the moment applied is available by means of a strain gauge located in this box.

References
This product has been delivered to :
ESRF : CRG-D2AM, CRG-Interface, CRG-DUBBLE, CRG-FAME, ID23 beamlines
ANKA : SUL beamline

Full documentation