F.j. Tieman B.v.

Turn-out N.v.

Frans Jan Tieman

A Braille cell having a pressure-exerting member in the form of a bar or leaf spring, of which one end can be displaced with the aid of a first displacement mechanism in a direction that is perpendicular to a longitudinal direction. One end of the pressure-exerting member is configured for placement in either a first or second position. In the first position, the pressure-exerting member does not place touch pins in a high position, while in the second position, the pressure-exerting member does place the touch pins in a high position. A second displacement mechanism is configured to displace the end of the pressure-exerting member, after the end has been disposed in one of the first or second positions, in the longitudinal direction, in such a manner that a touch pin is placed or is not placed in the high position. This allows a touch pin to be fixed in the correct position with respect to the touch surface of the touch board in a very simple manner.

Braille cell and display comprising a plurality of braille cells, as well as a method for controlling a plurality of pins of a braille cell

The invention relates to a method of adjusting, in the course of applying predetermined voltages, an oblong piezo-electric bending element which at a first end has been supported by a part protruding in the longitudinal direction of the element, whereby this part is mechanically bent and consists of a material in which at least part of the bending deformation is permanent. In addition, the invention comprises a piezo-electric bending element as has been constructed by applying the method and tools for the application of the method.

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Vosselaar, Belgium

Frans Jan Tieman