Feedforward operation of a lens setup for large defocus and astigmatism correction | Zendy

Hans R. G. W. Verstraete | Zendy; Mitra Almasian | Zendy; Paolo Pozzi | Zendy; Rolf Bilderbeek | Zendy; Jeroen Kalkman | Zendy; Dirk J. Faber | Zendy; Michel Verhaegen | Zendy

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Feedforward operation of a lens setup for large defocus and astigmatism correction

Author(s) -

Hans R. G. W. Verstraete,

Mitra Almasian,

Paolo Pozzi,

Rolf Bilderbeek,

Jeroen Kalkman,

Dirk J. Faber,

Michel Verhaegen

Publication year - 2016

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.2227111

Subject(s) - astigmatism , lens (geology) , optics , computer science , feed forward , physics , engineering , control engineering

In this manuscript, we present a lens setup for large defocus and astigmatism correction. A deformable defocus lens and two rotational cylindrical lenses are used to control the defocus and astigmatism. The setup is calibrated using a simple model that allows the calculation of the lens inputs so that a desired defocus and astigmatism are actuated on the eye. The setup is tested by determining the feedforward prediction error, imaging a resolution target, and removing introduced aberrations

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