The opto-mechanical alignment procedure of the VLT Survey Telescope

Carmelo Arcidiacono; Roberto Ragazzoni; Gabriele Umbriaco; Jacopo Farinato; Demetrio Magrin

doi:10.1117/12.857267

6 August 2010 The opto-mechanical alignment procedure of the VLT Survey Telescope

Carmelo Arcidiacono, Roberto Ragazzoni, Gabriele Umbriaco, Jacopo Farinato, Demetrio Magrin

Proceedings Volume 7733, Ground-based and Airborne Telescopes III; 773357 (2010) https://doi.org/10.1117/12.857267
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The VLT Survey Telescope is a f/5.5 modified Ritchey-Chretien imaging telescope, which is being installed at the ESO-Paranal Observatory. It will provide a one square degree corrected field of view to perform surveyprojects in the wavelength range from UV to I band. In this paper we describe the opto-mechanical alignment procedure of the 2.61m primary mirror, the secondary and correctors lenses onto the mechanical structure of the telescope. The alignment procedure does not rely on the mechanical precision of the mirrors. It will be achieved using ad-hoc alignment tools, described in the paper, which allows the spatial determination of optical axes (and focuses where necessary) of the optical components with respect to the axis defined by the rotation of a laser beam mounted on the instrument bearing.

Citation Download Citation

Carmelo Arcidiacono, Roberto Ragazzoni, Gabriele Umbriaco, Jacopo Farinato, and Demetrio Magrin "The opto-mechanical alignment procedure of the VLT Survey Telescope", Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 773357 (6 August 2010); https://doi.org/10.1117/12.857267

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