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Proceedings Paper

Wavefront coding technology in the optical design of astronomical instruments
Author(s): Rosario Porras; Sergio Vazquez-Montiel; J. Castro
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Paper Abstract

The new astronomical instruments; spectrographs, cameras, focal reducers, telescopes, etc., requires to work in more and more wide spectral ranges and with very large fields of vision. Therefore, the chromatic aberrations and the field curvature are aberrations very difficult to correct and to balance in the process of optical design. For that problem, in the stage of optical design is necessary to add more optical components in the instrument, also we need to use more aspherical surfaces and we need more time of optical design, etc. In this work we propose to use the technique of wavefront coding using a cubic phase mask to obtain optical systems with an extended depth of field that corrects the chromatic aberration and the field curvature automatically. In this paper we present preliminary results of this technique.

Paper Details

Date Published: 21 October 2004
PDF: 5 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.592196
Show Author Affiliations
Rosario Porras, Instituto Nacional de Astrofisica, Optica y Electronica (Mexico)
Sergio Vazquez-Montiel, Instituto Nacional de Astrofisica, Optica y Electronica (Mexico)
J. Castro, Instituto Nacional de Astrofisica, Optica y Electronica (Mexico)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications

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