Patent ID: 7126730

Claim:
An electro-optic system for concentrating a light beam that is incident from a moving light source onto at least one predetermined target, the system comprising: At least one of a plurality of layers of electro-holographic lens devices comprising: an active layer made from a transparent photo-refractive material, whose refractive index may be locally modified by locally applying an electric field; an array of electrodes in a predetermined density, provided adjacent the active layer for locally providing electric fields across an array of predetermined locations in the active layer; a tracking unit for tracking the position of the light source; a control unit for applying and controlling application of electric fields in a dynamically controllable predetermined locations obtained from the tracking unit, the information relating to the location of the light source for creating a dynamically changing holographic fringe pattern across the active layer, creating a dynamically changing concentrating lens, so as to continuously focus the light beam onto the at least one predetermined target.