1986-08-04
1988-08-23
Lee, John
350 9611, G02F 1315
Patent
active
047657030
ABSTRACT:
An optical deflector for deflecting a light beam within a predetermined range of angle, including a substrate having an electro-optical effect, a three-dimensional waveguide formed on one of opposite surfaces of the substrate, to guide waves of the light beam therethrough, and plural pairs of deflector electrodes. The waveguide includes a main path, and a plurality of branch paths diverging from the main path at respective branching portions of the waveguide. The branch paths are angled with respect to the main path so as to cover the predetermined range of angle. Each pair of deflector electrodes is disposed at a corresponding one of the branching portions of the three-dimensional waveguide, in order to produce an electric field locally at the corresponding branching portion of the waveguide, and thereby deflect the light beam from the main path into a corresponding one of the plurality of branch paths, due to the electro-optical effect upon selective application of a voltage between the deflector electrodes.
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Suzuki Makoto
Taki Kazunari
Brother Kogyo Kabushiki Kaisha
Lee John
Menz Michael
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