An apparatus for controlling the angular direction of energy emitted from a plurality of energy delivery devices. The apparatus includes a plurality of rods, each rod mechanically coupled to one of the energy delivery devices, to a stationary plate, and to a moveable plate. The stationary plate includes holes that are configured to receive a portion of a first rotatable joint that is mechanically coupled to each rod. The moveable plate includes holes that are configured to receive a portion of a second rotatable joint, the second rotatable joint slidingly engaging a portion of the respective rod. The angle of each rod changes when the moveable plate is moved in any direction with respect to the stationary plate. Changing the rod angle changes the angular direction of the energy emitted from the energy delivery devices such that the energy passes through an intended focal position.
