Optical: systems and elements – Diffraction – Using fourier transform spatial filtering
Patent
1995-03-03
1997-09-02
Dzierzynski, Paul M.
Optical: systems and elements
Diffraction
Using fourier transform spatial filtering
359316, 359240, 349 17, 349 25, G02B 2746, G02F 129, G02F 101, G02F 11335
Patent
active
056638329
ABSTRACT:
The present invention discloses a device for and method of simulating an image in real time under turbulent atmospheric conditions. The present invention is realized by expanding a first laser beam using a microscope-objective and a first lens. The expanded light is then projected onto a first LCLV. Light reflecting from the first LCLV is filtered, focused onto a diaphram, polarized, and directed along a path that is around two meters in length. The light is then split into a first beam and a second beam. The first beam is focused onto an optical fiber bundle which is connected to the first LCLV. One end of the optical fiber bundle is rotated with respect to the other end. The second beam is projected upon a second LCLV. A second laser beam is expanded and projected onto a LCTV. The image is provided to the LCTV. The LCTV image is projected onto, and modulated by the second LCLV. The light reflecting from the second LCLV, which represents a simulation of the image under turbulent atmospheric conditions, is then displayed using a CCD camera.
REFERENCES:
patent: 4707077 (1987-11-01), Marom
patent: 5046824 (1991-09-01), Pepper
patent: 5048935 (1991-09-01), Efron et al.
patent: 5071231 (1991-12-01), Armitage et al.
patent: 5083854 (1992-01-01), Zampolin et al.
patent: 5090795 (1992-02-01), O'Meara et al.
patent: 5206674 (1993-04-01), Puech et al.
patent: 5229872 (1993-07-01), Mumola
Vorontsov et al, "Intelligent laser systems: adaptive compensation of phase distortions in nonlinear system with two-dimensional feedback", SPIE vol. 1409 Nonlinear Optics, 1991, pp. 260-266.
Vorontsov et al, "Controlling transverse-wave interactions in nonlinear optics: generation and interaction of spatio-temporal structures," J. Opt. Soc, Am. B. vol. 9, No. 1, Jan. 1992, pp. 78-90.
J.C. Ricklin, et al "Turbulent Phase Screen for Study of Imaging System Performance" Journal of Modern Optics (to appear).
Miller Walter B.
Ricklin Jennifer C.
Vorontsov Mikhail A.
Chang Audrey
Dynda Frank J.
Dzierzynski Paul M.
Krosnick Freda L.
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