Indoor-outdoor image projection system

Claim 1

An indoor-outdoor image projection system, comprising, a building located along a public thoroughfare and having an exterior vertical wall parallel to said thoroughfare, a vertically disposed screen at eye level from the ground, positioned outside said building between the wall and the thoroughfare and extending substantially perpendicular to said wall and said thoroughfare, and said screen having oppositely facing viewing faces viewable from said thoroughfare, a pair of projection windows in said wall, a pair of image projection sources in said building positioned on the inside face of said wall and on opposite sides of said screen to project images through the adjacent projection windows, and a mirror unit including an enclosure positioned on the outside face of said wall directly adjacent each projection source to receive said image from said inside projection source and direct it onto the adjacent face of said screen, said mirror unit having a mirror extending at a 45° angle to said wall and said screen, said screen being positioned substantially equal distance between said mirror units, a screen being provided inside said building and said image projection source being positioned on a rotatable support such that said projection source can be turned, a mirror inside said building being positioned closely adjacent said projection window and being aligned between one of said projection sources and said screen in said building to transmit said image to said screen in said building upon said one projection source being turned only a few degrees from said outside mirror unit, and the distance from said mirrors to said screen being greater than the distance from said projection sources to said mirrors and said screen being substantially larger than said mirror unit thereby making said screen more noticeable than said mirror units.