INDICATOR Russian patent published in 1994 - IPC

FIELD: indication of two-color visual information. SUBSTANCE: indicator has case 1 provided with peephole, indicator element 2 on the base of permanent magnets made in form of hollow cylinders 3; the magnets are magnetized radially and are disposed in a row by alternating polarities. Control unit is made in form of electromagnet. Core of the electromagnet has U-shaped form. Pole tips of core 4 are made to have bevels. Winding 7 is disposed onto base of core 4. EFFECT: improved precision; improved efficiency. 3 cl, 6 dwg