ANTI-ROTATION UNIT OF FAST STEERING MIRROR SYSTEM FOR LARGE TELESCOPIC SYSTEM AND FAST STEERING MIRROR SYSTEM WITH THE SAME

摘要

The present invention relates to a fast steering mirror system having an anti-rotation unit for a large telescopic system. The fast steering mirror system having an anti-rotation unit for a large telescopic system comprises: a reflecting mirror which is arranged to have an optical axis different from the optical axis of a large telescopic system; a mirror cell which supports the reflecting mirror and rotates the reflecting mirror around the axis vertical to the optical axis of the reflecting mirror; and an anti-rotation unit which prevents the reflecting mirror from rotating around the optical axis thereof. Therefore, the present invention controls the axial rotation of the reflecting mirror without a bad influence on the performance of the fast steering mirror system.