Download Adaptive optics for industry and medicine: proceedings of by Ulrich Wittrock PDF

By Ulrich Wittrock

This e-book treats the improvement and alertness of adaptive optics for and medication. The contributions describe lately built parts for adaptive-optics structures comparable to deformable mirrors, wavefront sensors, and replicate drivers in addition to entire adaptive optical platforms and their purposes in and drugs. functions variety from laser-beam forming and adaptive aberration correction for high-power lasers to retinal imaging in ophthalmology. The contributions are in accordance with displays made on the 4th foreign Workshop on Adaptive Optics in and drugs which came about in Münster, Germany, in October 2003. This hugely profitable sequence of workshops on adaptive optics all started in 1997 and maintains with the fifth workshop in Beijing in 2005.

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Additional resources for Adaptive optics for industry and medicine: proceedings of the 4th international workshop, MuМ€nster, Germany, Oct. 19-24, 2003

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Guralnik: Operation modes of a liquid crystal modal wavefront corrector. Appl. Opt. 43, 2209 (2004) 7. V. R. P. Y. F. Naumov: Liquid crystal lenses with programmable focal distance. Part I: Theory. Part II: Experiment. Quant. Electr. 29, 256 (1999) 8. M. Pham, T. R. M. Sarro: Electrical characteristics of plasma-enhanced chemical vapor deposited silicon carbide thin films. Materials Science Forum 433, 451 (2002) 9. M. W. De Lima Monteiro, G. Vdovin: Comparison study of the performance of piston, thin plate and membrane mirrors for correction of turbulence-induced phase distortions.

The typical diameters of the primary coil were in the range of 16–50 mm and the windings of the coils were in the range of 5–40 turns. The secondary coils were fabricated with 10–100 turns. The effective distance between the primary and the secondary coils were varied in the range of about 0–60 mm. The voltage, used to drive the switching circuit was adjustable in the range of 0–30 V, with maximum primary coil current of 1 A. We tested the optical performances of the LC device driven by the coupled-coil system.

These breadboard set-ups cannot be converted into wearable devices due to their bulkiness and complexity. Another ophthalmic problem that can be corrected with adaptive optics is the agerelated or post-surgery loss of accommodation. Attempts were made to develop a corrector for presbyopia [8] with moderate practical success. Here we present the first results of our experiments with inductive wireless control of a liquid crystal wavefront corrector, proving the technical feasibility of dynamic correction of human-eye aberrations by placing the wavefront corrector directly into the pupil of the human eye.

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