VISTA Telescope opto-mechanical integration

Paul Jeffers; David Henry

doi:10.1117/12.857091

5 August 2010 VISTA Telescope opto-mechanical integration

Paul Jeffers, David Henry

Proceedings Volume 7733, Ground-based and Airborne Telescopes III; 77332L (2010) https://doi.org/10.1117/12.857091
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

VISTA¹ is an infrared survey telescope which delivers 0.5 arc second images over a 1.65 degree diameter unvignetted field of view. The project was split into separate work-packages, which after successful individual acceptance, were integrated by the project office. The main mechanical integration is the matching up of two sides of a controlled interface and should be a straightforward process. This covers the mounting of the M2 Hexapod, the installation of the M2 mirror assembly onto the M2 Hexapod, the M1 attachment to the M1 support system components and installation of the instrument mass simulator. The second stage of this integration is the mechanical alignment of the optical elements (i.e. M1 & M2) to the telescope mechanical axis. This is achieved through use of jigs and alignment equipment combined with the inbuilt adjustment in both the M2 on it's Hexapod and the manual adjustment of the M1 on its positional definers. This then leaves the telescope in a state ready to start optical commissioning using a Shack Hartman wavefront sensor. This paper deals with the mechanical integration and alignment of the telescope components up to the start of optical commissioning. There will be discussion of the build-up of information through the separate component acceptance details, to the equipment methodology, preparation and actual integration of the different systems. There will also be discussion of lessons learned.

Citation Download Citation

Paul Jeffers and David Henry "VISTA Telescope opto-mechanical integration", Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77332L (5 August 2010); https://doi.org/10.1117/12.857091

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KEYWORDS

Telescopes

Cameras

Optical alignment

Interfaces

Mirrors

Device simulation

Infrared telescopes

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