Abstract: An optical image multiplying device includes an object cell containing a plurality of tumbler objects, each of which carries a pictorial image on a selected region thereof. The pictorial region of each object includes transparent portions which permit the viewer to see detail of the objects behind it. The pictorial regions are surrounded by transparent regions that permit the individual images or distinctive parts thereof to become periodically quite recognizable as the objects tumble relative to one another. Additionally, placement of the pictorial regions on geometrically different parts of their respective tumble objects enhances periodic recognizability. A selected region immediately adjacent, and possibily surrounding the pictorial region is provided with transparent color, but a portion of at least one tumbler object is preferably clear. A number of generally transparent beads, typically clear or of primary colors in a subdued tone may be included in the object cell.

Abstract: An optical device for multiplying pictorial images which includes a plurality of pictorial objects mounted for movement within a compartment positioned adjacent two plane mirrors placed at an angle so that changes of position of the objects may be viewed as an infinite symmetrically multiplied photomontage.