VACUUM COMPATIBLE LINEAR MOTION DEVICE

摘要

A vacuum compatible linear motion device having a fluid bearing is contained within a vacuum chamber having a working pressure of significantly less than one atmosphere. The fluid bearing is contained within a vacuum enclosure within the vacuum chamber and is maintained at a pressure higher than that of the vacuum chamber but less than one atmosphere, thus esentially isolating the fluid bearing. A moveable payload is coupled to the linear motion device such that linear motion in the direction of the long axis of the device is provided to the moveable payload.