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<title>New circular radial-scan frame-storage CCDs for low-order adaptive optics wavefront curvature sensing</title>

1994; SPIE; Volume: 2201; Linguagem: Inglês

10.1117/12.176093

1996-756X

John C. Geary, Gerard A. Luppino,

Optical Systems and Laser Technology

CCDs having circular rather than rectilinear symmetry offer some advantages for low-order wavefront sensing. A series of imagers having 24 sectors and 12 radial zones (plus frame store) has been developed. Three different output structures have been utilized in order to investigate low-noise operational limits.