Patent ID: 6926427

Claim:
In an ellipsoidal stage lamp for projecting light along an optical axis onto a stage, the ellipsoidal stage lamp having: a base with a lamp having a filament; an ellipsoidal reflector mounted to the base with the filament of the lamp at the focus of the ellipsoidal reflector; a shutter section for containing shutters to impart borders to a projected beam from the stage lamp; a barrel mounted to the shutter section; and, a lens tube having projecting lenses for slidable mounting within the barrel for projecting and focusing a projected beam from the ellipsoidal stage lamp; an improvement including a replacement for the shutter section comprising: a cabinet for disposition within the ellipsoidal stage lamp to replace the shutter section; the cabinet defining a first opening disposed along and around the optical axis of the ellipsoidal stage lamp and open to the base and lamp having a filament; the cabinet having at least one open side for permitting the sliding insertion of at least one drawer; the at least one drawer having a second opening disposed along and around the optical axis of the ellipsoidal stage lamp and open to the base and lamp when inserted to the cabinet; and, a movable projector plane mounted to the drawer across the second opening for insertion to the cabinet at the at least one open side, whereby the movable projector plane mounted to the drawer can be projected by the ellipsoidal stage lamp from the second opening in the drawer.