Mirror Mount, ZeroDrift, 0.5 in. Diameter, Three 100 TPI Hex Key

Because the thermal deflection of optical mounts can be characterized, and these deflections can be controlled through thermal expansion compensation, the thermal deflection of an optical mount can be nearly eliminated. This patent-pending innovation is called ZeroDrift™ Technology.

Our tests show that ZeroDrift™ technology reduced the thermal drift of a stainless steel mirror mount by 85%.  The graph shows thermal drift of 6 µrad and shift of 1 µrad.

ZeroDrift technology has been combined with our low wavefront distortion (LWD) retainer to hold mirrors in a way that will not induce optical distortion. It uses an axial three-point mounting method to gently, but securely, hold optics with tight flatness tolerances.

For long-term stability, Suprema^® ZeroDrift™ Mirror Mounts feature lockable adjustment screws. The jam nut lock, used for SS100T, exerts an axial force on the adjustment screw which locks the mirror mount's alignment in place and can be tightened by hand. The lever lock, used for the ST05 models, and the flexure lock built with an AJS bushing, used for SU100TW, exert a tangential force on the screw to prevent rotation. Adjustment and locking actions for these models are accomplished using a single tool from the same side of the mount.