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24 December 2003 Development of the first-light AO system for the large binocular telescope
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The LBT Adaptive first light is foreseen for summer 2004. The first light AO system will be part of the Acquisition Guiding and Wavefront sensor unit (AGW) placed at the front bent Gregorian Foci of the telescope. The development and construction of the AO system is an undergoing process at Arcetri Observatory. The main features of the system are: the use of an adaptive secondary mirror with 672 actuators, the adoption of a pyramid wavefront sensor with a maximum sampling of 30x30 subaperture and the use of a small (400x320mm) movable wavefront sensor unit for reference star acquisition. After a brief description of the system the paper report about the progresses made in the design, realization and lab testing of the various parts of the AO system. In particular we describe the new beams configuration for the wavefront sensor board, the lab prototype of the sensor opto-mechanics, the sensor fast camera and its controller, the glass pyramid, the AO system real time and control software.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Simone Esposito, Andrea Tozzi, Alfio Puglisi, Luca Fini, Paolo Stefanini, Piero Salinari, Daniele Gallieni, and Jesper Storm "Development of the first-light AO system for the large binocular telescope", Proc. SPIE 5169, Astronomical Adaptive Optics Systems and Applications, (24 December 2003);


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