1978-04-06
1979-06-12
Davie, James W.
350359, 350360, G02F 111
Patent
active
041578635
ABSTRACT:
An acousto-optical modulator for modulating light with surface waves. Sure waves are excited on an aluminum plate which is tapered to terminate in a wedge type formation, the surface wave transmitted in the direction of the wedge. The waves are amplified by the wedge and transmitted to a membrane, which has been mirrored on one surface and stretched over a U shaped frame and part of the wedge. Light illuminating the mirrored surface is both spatially and temporally modulated by the surface waves transmitted through the wedge to the membrane.
REFERENCES:
patent: 3547520 (1970-12-01), Lea et al.
patent: 3736044 (1973-05-01), Lean et al.
patent: 3746785 (1973-07-01), Goodrich
patent: 3796480 (1974-03-01), Perston, Jr. et al.
patent: 3891308 (1975-06-01), Hawkins
patent: 3930718 (1976-01-01), Jensen
patent: 3938881 (1976-02-01), Biegelsen et al.
Beers R. F.
Davie James W.
Sciascia R. S.
Sheinbein Sol
The United States of America as represented by the Secretary of
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