Pupil plane wavefront sensing with an oscillating prism

摘要: A compact pupil plane wavefront sensor is described, which able to image on a single detector four images of the pupil, containing information gradient incoming wavefront. The consists lens relay and an oscillating pyramidal-shaped prism. gain device driven by amplitude oscillations, while sampling determined focal length relay. This can be conveniently used for astronomical adaptive optics purposes because its flexibility match brightness reference source (varying sampling) seeing conditions gain).