Adaptive support for positioning optical components
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United States of America Patent
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Mar 25, 2003
Grant Date -
N/A
app pub date -
Mar 13, 2001
filing date -
Mar 13, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for positioning an optical component, such as a lens or reflector. Positioning of the optical component is facilitated by an adaptive support that is coupled to the optical component on one end, and secured to a generally static structure at an opposing end. The adaptive support comprises a flexible support member on which a plurality of piezoelectric elements are mounted. In response to differential voltages applied to selected piezoelectric elements, localized portions of the flexible support member are caused to extend or contract. As a result, this localized extension and contraction alters the configuration of the adaptive support such that the orientation and/or position of the optical component are changed. In one embodiment corresponding to an off-axis Cassegrain reflective collector, the apparatus provides a mechanisms that maintains the location of the collector's focal point by compensating for temperature variations and changes to an incoming optical signal, and additionally enables the direction of outgoing signals to be controlled.
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