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Updated: Jun 10, 2026

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Bringing the Visible Universe into Focus with Robo-AO
Published on: February 12, 2013
Abstract:
The aberrations of a spherical mirror of moderate aperture ( approximately f/5) can be corrected by a lens system near the focal plane. A four-element lens system is necessary to provide a satisfactory state of correction over a full field of 0.5 deg. The design of such a lens system is described with emphasis on the intrinsic properties of each component and the logic behind the choice of layout.
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