Abstract: An illumination system controller with one or more touch screen controllers for aiming light fixtures in sanitary environments. The system has (1) one or more light fixtures; (2) one or more touch screen controllers in communication with one or more light fixtures; and (3) software in communication with a touch screen controller and a light fixture that is adapted to aim light beam direction.

Abstract: A method for generating a beam of light that impinges on a target, wherein beam intensity remains substantially constant regardless of beam spot size. The method involves: providing a light source, a lens that can be moved to or between various positions, a slide having positions at which the lens may be supported, a target at which a beam is directed and a controller that communicates between an optical position feedback encoder and the light source; linking the encoder and the lens, the encoder sending a lens position signal to the controller, including an encoder translator circuit which communicates with a microprocessor that receives user inputs which characterize desired beam size at the target; generating a light source power signal to the light source so that electrical power delivered by the light source changes in response to the position of the lens.

Abstract: A room lighting system specially suited for medical procedures. The system includes first and second light assemblies adapted to be mounted in the ceiling of the procedure room and each including a lamp movable between a plurality of angular positions. The lamps are controlled by a wall control unit mounted in a wall of the procedure room or by a remote control unit including an infrared transmitter communicating with an infrared receiver mounted in the wall control unit. The light assemblies can be controlled individually as to both intensity and angular position either from the wall control unit or from the remote control unit. Each light assembly includes a transformer which receives line power and steps the line power down to a 24 volt circuit to control the intensity of the lamp and a 12 volt circuit which includes all of the controls for the light assembly.