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28 July 2010 Visible and infrared multispectral illumination concept based on Galilean collimation systems: IACATS illumination source
Gonzalo Ramos Zapata, Tomás Belenguer Dávila, Carmen Pastor Santos, René Restrepo Gómez, Concepción González Alvarado, Hugo Laguna Hernández, Antonio Astolfi Carbonell, Javier Moreno Raso, Heribert Argelaguet, Javier Serrano
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Proceedings Volume 7736, Adaptive Optics Systems II; 77363S (2010) https://doi.org/10.1117/12.857985
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States
Abstract
A LED based illumination system in which five Galilean collimation systems have been used is reported on. It is part of a turbulence simulator for the evaluation of on ground telescopes instrumentation developed by INTA (optics) and LIDAX (opto-mechanics) for the IAC called IACATS. The illumination requirements (some visible and infrared lines) allow the use of five different LEDs (red, green, blue and two infrareds). In order to optimize the illumination level of each wavelength, a Galilean collimating optical configuration was constructed for each wavelength channel. The IACATS instrument simulates a scene consisting of a set of different binary stars simulating the required angular separation between them, ant their spectral characteristics. As a result, a visible and infrared multi-spectral illumination system has been integrated as a part of the turbulence simulator, and the features (opto-mechanical) and illumination characteristics are described in the following lines.
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Gonzalo Ramos Zapata, Tomás Belenguer Dávila, Carmen Pastor Santos, René Restrepo Gómez, Concepción González Alvarado, Hugo Laguna Hernández, Antonio Astolfi Carbonell, Javier Moreno Raso, Heribert Argelaguet, and Javier Serrano "Visible and infrared multispectral illumination concept based on Galilean collimation systems: IACATS illumination source", Proc. SPIE 7736, Adaptive Optics Systems II, 77363S (28 July 2010); https://doi.org/10.1117/12.857985
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KEYWORDS
Device simulation
Telescopes
Light emitting diodes
Mirrors
Optical filters
Collimation
Infrared radiation
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