Patent ID: 7784204

Claim:
An artificial window, comprising; a light box having: a rear wall; a diffuser arrangement in front of the rear wall; at least one first light source extending between the rear wall and the diffuser arrangement; and a first set of drivers for operating the at least one light source; a rail extending between a first and second frame portion, said rail repositionally supporting at least one additional light source electrically connected to a second set of drivers, wherein each of the at least one additional light source radiates a spotlight-type beam, and a window frame including said first and second frame portion, said frame positioned in front of the diffuser arrangement, wherein said at least one additional light source is movable along said rail extending between said first and second frame portions adjustable to change said at least one additional light source angle with respect to said frame portions, and arranged to radiate light onto at least a portion of a front side of the diffuser arrangement facing the window frame or to radiate light through a transparent plate of the window frame.