Patent ID: 6259550
Filing Date: 2001-07-10
Classification: G02B

Abstract:
A structure for the phase modulation of light incident upon said structure, comprising:a mirror;a deformable and transparent liquid dielectric disposed on the mirror; andat least two electrodes adapted to have a voltage applied thereto for generating an electric field in at least a partial region of said dielectric, thereby changing the optical path length of the light passing through the dielectric with respect to a state of the dielectric in which the electric field is not applied thereto,wherein said dielectric with respect to the electrodes is disposed such that the light passing through the dielectric passes at least through part of said partial region of the dielectric adapted to have the electric field applied thereto, before it impinges upon one of the electrodes; andwherein said dielectric, said mirror and said electrodes are arranged on a substrate having a CMOS active matrix through which a voltage can be applied to said electrodes.