Electromechanical transducer for relief display panel

Details Electromechanical transducer for relief display panel Electromechanical transducer for relief display panel

G - Physics

09

B

35/43, 375/5

G09B 5/02 (2006.01)

Patent

CA 1075459

Abstract of the Disclosure A reading plate has an array of holes in its surface. Rounded ends of rods project selectively through these holes by the action of a set of bimorphous piesoelectric reeds, on which they rest perpendicularly. Each reed is connected to a source of electric voltage which can assume two distinct values as a function of an electrical control signal in order to make the piezoelectric reeds bend in one direction or the other. The reeding rods are distributed in groups of six and arranged in each group according to the conventional arrangement of dots of a braille character. The transducer can thus provide a relief read-out panel for a pocket electronic calculator for the blind.

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