Patent ID: 9134555
Filing Date: 2015-09-15
Classification: G02B,G02F,H04N

Abstract:
1. A liquid crystal optical device, comprising: a liquid crystal optical unit including a drive unit electrically connected to the first electrodes, the second electrode, and the first opposing electrode, the drive unit being configured to implement a first operation to form a refractive index distribution in the liquid crystal layer and a first preliminary operation prior to the first operation, the drive unit being configured to apply a first voltage between the first opposing electrode and the first electrodes and apply a second voltage between the first opposing electrode and the second electrode in the first operation, the drive unit being configured to apply a third voltage between the first opposing electrode and the first electrodes and apply a fourth voltage between the first opposing electrode and the second electrode in the first preliminary operation, an absolute value of the third voltage being less than the absolute value of the first voltage, an absolute value of the fourth voltage being greater than the absolute value of the third voltage.