DUAL GYRO MECHANICALLY COUPLED IMAGE MOTION COMPENSATOR HAVING NON-LINEAR DAMPING MEANS

摘要

An image motion compensator for optical systems employs a variable-angle fluid medium encapsulated between spaced transparent elements pivotally disposed about mutually perpendicular axes. A pair of gyros whose axes are orthagonal to each other are mechanically coupled to the respective transparent elements to avoid cross coupling of image motion. Damping is non-linear - minimal about the center of precession and increasing exponentially with increase of precession angle. Restoring torque is applied magnetically to precession axis by means of opposed permanent magnets.