METHOD AND DEVICE FOR MEASURING THE STATE OF POLARIZATION OF LIGHT Russian patent published in 2007 - IPC G02F1/09 

FIELD: the invention refers to optical technique.

SUBSTANCE: for changing the state of polarization of light a magnetized uniaxial crystal is used. At that the light passes through the given zones of the crystal. For switching the state of polarization of light an impulse of magnetic field is imposed on the crystal with a certain density of the magnetic field at which the crystal after the end of the impulse does not remain in the monodomain state but returns in a definite multidomain state defined by the direction of the accompanying magnetic field.

EFFECT: possibility of achieving large useful apertures of the commutating element at very short periods of commutation, at that energy is necessary only for its commutation but not for supporting the definite state.

6 cl, 2 dwg, 1 tbl