Elementary cell combinable to form dot matrix displays

Details Elementary cell combinable to form dot matrix displays Elementary cell combinable to form dot matrix displays

1991-12-06

1993-04-20

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Combined with diverse-type art device

34081505, 34081526, 40426, G08B 500

Patent

active

052046516

ABSTRACT:
An elementary cell combinable to form dot matrix displays, in which a plurality of plates of non-magnetic insulating material, at least one of which is in contact with a plate of high magnetic permeability, define a seat for housing a polychrome sphere provided internally with a permanent magnet. In the plates of non-magnetic material there are arranged magnetic poles, which can be energized selectively to cause the sphere to rotate into predetermined positions.

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