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Inexpensive mount for a large millimeter-wavelength telescope

Padin, S. (2014) Inexpensive mount for a large millimeter-wavelength telescope. Applied Optics, 53 (20). pp. 4431-4439. ISSN 0003-6935.

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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, λ=850  μm 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.

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Additional Information:© 2014 Optical Society of America. Received 3 April 2014; revised 27 May 2014; accepted 30 May 2014; posted 2 June 2014 (Doc. ID 209561); published 4 July 2014. This work was supported by the John B. and Nelly Kilroy Foundation.
Funding AgencyGrant Number
John B. and Nelly Kilroy FoundationUNSPECIFIED
Issue or Number:20
Classification Code:OCIS codes: 350.1260, 110.6770, 220.4880
Record Number:CaltechAUTHORS:20140818-114906923
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Official Citation:Inexpensive mount for a large millimeter-wavelength telescope Applied Optics Vol. 53, Iss. 20, pp. 4431–4439 (2014) S. Padin
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48657
Deposited By: Ruth Sustaita
Deposited On:19 Aug 2014 21:25
Last Modified:03 Oct 2019 07:06

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