@inproceedings{21fda89156b840d8b91b9d33c6cf4cc3,
title = "Optical mount modifications for increased articulation at the Navy Prototype Optical Interferometer",
abstract = "Reconfigurations of the original optical mounts are required to facilitate the expanding capabilities and diverse science programs at the Navy Prototype Optical Interferometer. The mounts of current interest are tangent-arm gimbaled mounts located in vacuum chambers, remotely controlled, and precisely aligned through a narrow range of motion. In order to achieve the desired large changes in pathway reflections, the articulated range of the mount was increased from 4 to 45 degrees in elevation and from 4 to 90 degrees in azimuth. This increase was achieved on the elevation axis by fashioning and attaching a worm gear device, and a direct-drive type mechanism was used on the azimuth axis. The original alignment resolution and stability were preserved by retaining the high precision tangent-arm actuators. In this paper, we present the design modifications that achieved the form, fit, and function required for remote-controlled reconfiguration and alignment. The mechanical modifications, modes of operation, test results, and reconfigurations are described in detail.",
keywords = "NPOI, Optical interferometry, Optical mount, Precision alignment, Remote control, Vacuum system",
author = "Clark, {James H.} and Walton, {Joshua P.} and Penado, {F. Ernesto} and Denver Smith",
year = "2007",
doi = "10.1117/12.734171",
language = "English (US)",
isbn = "9780819468130",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "New Developments in Optomechanics",
note = "New Developments in Optomechanics ; Conference date: 28-08-2007 Through 30-08-2007",
}