7 November 1983 Alignment Telescope For Antares
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Proceedings Volume 0380, Los Alamos Conf on Optics '83; (1983) https://doi.org/10.1117/12.934739
Event: Los Alamos Conference on Optics, 1983, New Mexico, United States
Abstract
The Antares Automatic Alignment System employs a specially designed telescope for alignment of its laser beamlines. There are two telescopes in the system, and since eacn telescope is a primary alignment reference, stringent boresight accuracy and stability over the focus range were required. Optical and mechanical designs, which meet this requirement as well as that of image quality over a wide wavelength band, are described. Special test techniques for initial assembly and alignment of the telescope are also presented. The telescope, which has a 180-mm aperture FK51-KZF2 type glass doublet objective, requires a boresight accuracy of 2.8 prad at two focal lengths, and object distances between 11 meters and infinity. Travel of a smaller secondary doublet provides focus from 11 m to infinity with approximately 7.8 m effective focal length. By flipping in a third doublet, the effective focal length is reduced to 2.5 m. Telescope alignment was accomplished by using a rotary air bearing to establish an axis in front of the system and placing the focus of a Laser Unequal Path Interferometer (LUPI) at the image plane.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Q. D. Appert, T. A. Swann, J. H. Ward, C. Hardesty, L. Wrignt, "Alignment Telescope For Antares", Proc. SPIE 0380, Los Alamos Conf on Optics '83, (7 November 1983); doi: 10.1117/12.934739; https://doi.org/10.1117/12.934739
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