Detail design problems and their solutions: Apache Point Observatory 3.5-m telescope

Steven M. Gunnels

doi:10.1117/12.19255

1 July 1990 Detail design problems and their solutions: Apache Point Observatory 3.5-m telescope

Steven M. Gunnels

Proceedings Volume 1236, Advanced Technology Optical Telescopes IV; (1990) https://doi.org/10.1117/12.19255
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

The present evaluation of the design philosophy of the Apache Point Observatory's 3.5-m altazimuth-fork mount telescope gives attention to such detail-design problems as the mirror-cover system, the upper azimuth bearing and support system, and the spherical bearing mountings. A four-roller constraint for the upper azimuth bearing and support system proved to be a superior design solution than the originally intended two-roller constraint. A cone-shaped structure on the lower fork defines the azimuth axis; the center of the drive disk defines the top end of the axis while the spherical roller thrust bearing defines the lower end.

Citation Download Citation

Steven M. Gunnels "Detail design problems and their solutions: Apache Point Observatory 3.5-m telescope", Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); https://doi.org/10.1117/12.19255

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