ELECTROMECHANICAL DRIVE OF THREE-COLOURED HEAD OF RASTER IMAGE ELEMENT Russian patent published in 2012 - IPC H02K19/10 G09F11/02 

FIELD: electricity.

SUBSTANCE: electric drive comprises a three-edged rotor, having an axis of rotation, passing through a centre of mass in parallel to edges, and a stator with a fixed position of poles arranged axially relative to the rotor, with a magnetic gap, the middle of which is displaced relative to the centre of rotation by the specified angle in direction of rotation, forming an axial electromagnetic system, making it possible to control the position of the rotor edges with the help of a unidirectional pulse action. The drive is equipped with a mechanism of rotor fixation, providing for rotor stability in one of three static positions, in which one of rotor edges always faces the side opposite from the stator relative to the rotation axis and serves a role of an element of raster image colour information unit transmission with the help of a colour coating of a required shade applied on it.

EFFECT: development of a tristable mechanical element of raster image colour information display with mechanical memory of static position and possibility to control change of positions with the help of a unidirectional pulse signal, considerable simplification of industrial version due to structural integration of units and parts of a drive and using weight of elements to develop forces of movable part fixation, provision of possibility of continuous monitoring of drive axial electromagnet system parameters due to asymmetry of its properties to detection a position of an element corresponding to one of three main colours of a used colour system.

2 cl, 31 dwg