Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1998-06-05
2000-08-22
Allen, Stephone B.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
356121, G01J 120
Patent
active
061076171
ABSTRACT:
Large space-based optical systems are expected to produce optical beams with large wavefront phase aberrations due to their size, weight limitations, optical misaligments and primary mirror imperfections. The present invention combines a phase diversity wavefront sensor with a real-time programmable two-dimensional array of liquid crystal variable retarders for wavefront correction.
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R. A. Carreras, et al, "Phase diversity experimental results: deconvolution of .nu. Scropii,", Optics Comm. 130 (1996) 13-19.
Carreras Richard A.
Duneman Dennis
Fender Janet S.
Love Gordon D.
Restaino Sergio
Allen Stephone B.
Callahan Kenneth E.
The United States of America as represented by the Secretary of
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