Abstract: An internal or self-contained lighting system for a viewer utilized in a viewing system which permits the stereoscopic viewing of a photograph, or the like, said photograph also being adapted for two dimensional viewing or display when not being viewed in three dimensions, said lighting system including light bulb means mounted within the viewer housing, reflector means arranged within said housing for cooperation with the bulb means for directing the light emanating therefrom onto the back-to-back images of the picture being viewed, and dispersing the light across the faces of the picture for efficiently illuminating the image during viewing thereof.