Optical: systems and elements – Optical computing without diffraction
Patent
1989-04-20
1992-07-21
Bovernick, Rodney B.
Optical: systems and elements
Optical computing without diffraction
359559, 359561, 364822, 382 42, 382 45, 382 46, 382 47, G02B 2742, G06K 920, G06F 15336
Patent
active
051328313
ABSTRACT:
An analog optical processor for performing affine transformations and constructing fractal objects. An optical processor for optically performing an iterated affine transformation includes a rotating prism, an imaging lens and a translatable mirror, together with a pulsed laser as an input light source and an image detector array to record the final transformed image. The amount of rotation is determined by the setting of the rotating prism. The imaging lens provides the required magnification or demagnification. The translating mirror is shifted to provide the necessary translation. The pulsed image passes through the optical loop many times to perform the transformation. An optical Iterated Function System is implemented by connecting a plurality of the optical loops in parallel, together with shutters or beamsplitters for guiding the pulsed image to different loops according to the probabilities assigned by the Iterated Function System.
REFERENCES:
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patent: 4509834 (1985-04-01), Hodgson
patent: 4637056 (1987-01-01), Sherman et al.
patent: 5076662 (1991-12-01), Shih et al.
Chang David B.
Moise Norton L.
Shih I-Fu
Bovernick Rodney B.
Denson-Low Wanda K.
Hughes Aircraft Company
Sales Michael W.
Shafer R. D.
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