Wavefront phase sensors using optically or electrically...

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems

Reexamination Certificate

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C359S245000, C359S559000, C359S256000

Reexamination Certificate

active

06911637

ABSTRACT:
Systems for optical wavefront sensing and control based on a phase contrast Fourier domain filtering technique. Optically or electronically controlled phase spatial light modulators (SLM) are used as the Fourier domain filter. A direct adaptive-optic feedback system using the optical wavefront sensing systems. A differential Zernike filter is also disclosed.

REFERENCES:
patent: 5276636 (1994-01-01), Cohn
patent: 5859728 (1999-01-01), Colin et al.
patent: 2002/0027661 (2002-03-01), Arieli et al.
Adaptive optics with advanced phase-contrast techniques. I. High-resolution wave-front sensung Mikhail A. Vontsov, Eric W. Justh, Leonid A. Beresnev, vol. 18, No. 6/ Jun. 2001/ J. Opt. Soc. Am. A.
Adaptive optics with advanced phase-contrast techniques. II. High-resolution wave-front control Eric W. Justh, Mikhail A. Vorontsov, Gray W. Carhart, Leonid A. Beresnev P.W. Krishnapasad, vol. 18, No. 6/ Jun. 2001/ J. Opt. Soc. Am. A.
Spatial filtering in nonlinear two-dimensional feedback systems: phase-distortion suppression E. V. Degtiarev, M. A. Vorontsov, vol. 12, No. 7 Jul. 1995 J. Opt. Soc. Am. B.
High-resolution adaptive phase distortion suppression based solely on intensity information V. P. Sivokon, M.A. Vorontsov, vol. 15, No. 1/ Jan. 1998 J. Opt. Soc. Am. A.
Phase retrieval from a set of intensity measurements: theory and experiment V. Yu, Ivanov and V. P. Sivokon, M. A. Vorontsov, vol. 9, No. 9 Sep. 1992 J. Opt. Soc. Am. A.

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