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Actuator

(telescope control motor)

The term Actuator refers to a control motor, and the term is commonly used for Telescopes to refer to such devices that physically position the telescope or parts of it. A motor to keep the telescope pointed at an object can go by that name. In large astronomical telescopes, smaller actuators may be used to align Segmented Mirrors to act as a single mirror or to position parts of an Adaptive Optics system. In a space telescope, the actuators may be positioning the attitude of the entire spacecraft.


(telescopes,mechanisms)
http://en.wikipedia.org/wiki/Actuator
http://en.wikipedia.org/wiki/Active_optics
https://www.ifa.hawaii.edu/Robo-AO/docs/TMT_AO_Overview_FengLu.pdf

Referenced by:
Deformable Mirror (DM)

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