CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12182 > Article
Poster + Paper
26 August 2022 The Large Fiber Array Spectroscopic Telescope: opto-mechanical design and architecture
Andrew J Young, Roger Angel, Chad Bender, Joel Berkson, Peter Gray, Samuel Halverson, Hyukmo Kang, Daewook Kim, Andy Monson, Chang-Jin Oh, Matthew Rademacher, Christian Schwab, Dennis Zaritsky
Author Affiliations +
Proceedings Volume 12182, Ground-based and Airborne Telescopes IX; 121824B (2022) https://doi.org/10.1117/12.2629330
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada
Conference Poster
Abstract
This paper describes the preliminary mechanical design and optomechanics of LFAST, the Large Fiber Array Spectroscopic Telescope. The 1,200 m2 array comprises 132, open air, alt-az tracking mounts, each carrying 20 small coaligned telescopes in a 5 m square U-shaped space frame about a central, dual-axis worm drive. Each unit telescope has a 0.76 m, f/3.5 mirror, a prime focus assembly with field corrector and a guide camera, and feeds a 17um, 1.3 arcsecond optical fiber. LFAST was designed specifically as a fiber fed spectroscopic telescope. By being built from thousands of mass-produced components it will be much cheaper per square meter of collecting area than phased monolithic telescopes currently under construction, like GMT and ELT. Cost effective dome-less operation is made possible by the structural design that maximizes stiffness and active compensation for wind induced jitter. The primary mirrors are protected when not in use by sub-horizon pointing of tracking mount and mirror covers.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Andrew J Young, Roger Angel, Chad Bender, Joel Berkson, Peter Gray, Samuel Halverson, Hyukmo Kang, Daewook Kim, Andy Monson, Chang-Jin Oh, Matthew Rademacher, Christian Schwab, and Dennis Zaritsky "The Large Fiber Array Spectroscopic Telescope: opto-mechanical design and architecture", Proc. SPIE 12182, Ground-based and Airborne Telescopes IX, 121824B (26 August 2022); https://doi.org/10.1117/12.2629330
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 13 PAGES + POSTER
DOWNLOAD PAPER SAVE TO MY LIBRARY
DOWNLOAD
POSTER
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Mirrors
Telescopes
Finite element methods
Optical tracking
Spectroscopy
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top