| 摘要 |
A heliostat 100 support and drive mechanism comprises a fixed pedestal 1, a shaft 2 attached to the pedestal by a joint 2a, such as a T-joint or flexure, so that the shaft is able to rotate with two degrees of freedom, an arm 4 and a mirror frame solidly connected to the shaft, and two linear actuators 5, 6. A first linear actuator 5 connects between one end of the arm and the pedestal in a position on the pedestal that is distant from the connection of the shaft to the pedestal. A second linear actuator 6 connects between the other end of the arm and the pedestal in a position on the pedestal that is distant from the connection of the shaft to the pedestal and is also distant from the connection of the first linear actuator to the pedestal.
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