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Material and design choices for a small movement optical system Burton Bruce Current art Piezo electric systems Flexure based systems Some criteria for the trade study In the field of micro optics there are the same requirements for a precision optical platform. These requirements in general are: Stability; the precision optical platform needs to stay exactly where it is put until an effort is made to move it. Repeatability; the precision optical platform needs to be able to be moved and then moved back to the same location within the range of motion throughout the life time of the system. Orientation Independence; many times it is unknown what orientation relative to the gravity field will be the final orientation of the precision optical platform and the supporting structure and mechanism. Small size; just as there has been a revolution in microelectronics over the last quarter century there has been a lesser revolution of micro optics. It is inadequate to have a 200 gram 5cm X 5cm X5 cm cube supporting such small optics. It would be like tubes in your cell phone.