Alignment of LBT optics using a laser tracker

A. Rakich

doi:10.1117/12.856275

6 August 2010 Alignment of LBT optics using a laser tracker

A. Rakich

Proceedings Volume 7733, Ground-based and Airborne Telescopes III; 77335K (2010) https://doi.org/10.1117/12.856275
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The laser tracker allows the precise determination of positions of surfaces in three dimensions over volumes exceeding 30 m radius from the tracker head. At the Large Binocular Telescope a laser tracker has recently been employed for the initial alignment of all telescope optics in the right hand side (DX) bent Gregorian optical train. In this paper the particular approach to alignment of optical elements employed during this campaign is discussed in detail, together with results and expected accuracies. Subsequent to this "mechanical alignment" the telescope was taken "onsky" and a subsequent "optical alignment" using a Shack-Hartman wavefront sensor with stellar sources took place. Ongoing activities include using the laser tracker to measure elevation and thermally induced displacements of individual optical elements.

Citation Download Citation

A. Rakich "Alignment of LBT optics using a laser tracker", Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77335K (6 August 2010); https://doi.org/10.1117/12.856275

ACCESS THE FULL ARTICLE

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