Patent ID: 7832874

Claim:
A display shelf comprising: a plurality of placing tables arranged at different heights, each of the placing tables forming a placing space for placing an article; a plurality of transmission-type screens, each of which is positioned at a front area of a corresponding one of the placing tables, and each of which transmits light projected on a back side of the screen; a projector placing part for arranging a projector which projects a beam of projection image light forming an image; an optical system which splits the beam, and leads the split beams to the back sides of the screens; a projecting mirror which is included in the optical system, and which is arranged to reflect a partial beam for display and reflect a partial beam for lighting, wherein the partial beam for display and the partial beam for lighting are included in the beam projected by the projector; and a lighting mirror that is arranged before one of the screens in a space through which the partial beam for lighting reflected by the projecting mirror passes, such that before the partial beam for lighting reflected by the projecting mirror reaches said one of the screens, the lighting mirror leads the partial beam for lighting reflected by the projecting mirror to one of the placing spaces.