MULTIPLE CELL LIQUID CRYSTAL OPTICAL DEVICE WITH COUPLED ELECTRIC FIELD CONTROL

摘要

#$%^&*AU2015234321B220170706.pdf#####Abstract A liquid crystal optical device is provided. The optical device includes a liquid crystal cell controlling optical properties of light passing there through and has: a liquid crystal layer, a planar electrode located to one side of said liquid crystal layer; an electric field control structure located to the opposite side of the liquid crystal layer; and a wavefront adjustment structure configured to provide optical phase front adjustment. In some embodiments the wavefront adjustment structure is a conductive floating electrode. In other embodiments the wavefront adjustment structure is a weakly conductive layer (WCL) having spatially variable sheet resistance. In other embodiments the wavefront adjustment structure is a weakly conductive structure having spatially variable sheet resistance with a frequency dependent characteristic.