Abstract
A telescope mount with a single-point force support at the center of gravity of
the primary mirror is proposed in order to eliminate much of the structure and
cost of a large, millimeter-wavelength telescope. The single-point support gives
repeatable thermal and gravitational deformation, so the surface of the primary
can be controlled based on lookup tables for elevation and temperature. The new
design is most appropriate for a survey telescope because locating the support
above the vertex of the primary limits the range of motion of the mount to about
1 rad. A 30 m diameter, telescope with the proposed mount is a factor
of 4 lighter than a design with a conventional elevation-over-azimuth mount, and
roughly half the cost.
© 2014 Optical Society of America
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