Optical: systems and elements – Diffraction – From zone plate
Patent
1996-05-31
1998-08-11
Henry, Jon W.
Optical: systems and elements
Diffraction
From zone plate
359573, 359576, G02B 518
Patent
active
057940231
ABSTRACT:
Apparatus suitable for transforming a radiation beam so that it can exit with a predetermined alteration. The apparatus includes a first variably diffractive radiation element for transforming a characteristic of the radiation beam from an original state; a second radiation element juxtaposed to the first radiation element for transforming the same characteristic in a complementary way; and, means for physically deforming the first variably diffractive radiation element so that its diffracting pattern can change in a known way.
REFERENCES:
patent: 5066126 (1991-11-01), Hatori
Hobbs Philip Charles Danby
van Kessel Theodore Gerard
Henry Jon W.
International Business Machines - Corporation
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