Patent ID: 6718666
Filing Date: 2004-04-13
Classification: G09F

Abstract:
Apparatus for displaying a plurality of still images forming an animated display to a viewer moving substantially at a known velocity relative to said still images substantially along a known trajectory substantially parallel to said still images, said apparatus comprising:a backboard having a backboard length along said trajectory, said still images mounted on a surface of said backboard, each of said still images having an actual image width and having an image center, image centers of adjacent images being separated by a frame-to-frame distance; and a slitboard positioned substantially parallel to said backboard, facing said surface thereof and separated therefrom by a board-to-board distance, said slitboard being mounted at a viewing distance from said trajectory, said board-to-board distance and said viewing distance totaling a backboard distance, said slitboard having a slitboard length along said trajectory, and having a plurality of slits substantially perpendicular to said slitboard length, each said slit corresponding to one of said images and having a slit width measured along said slitboard length and a slit center, respective slit centers of adjacent ones of said slits being separated by said frame-to-frame distance; wherein: said slitboard and said backboard each have a side profile perpendicular to said trajectory; and said slitboard and backboard profiles are each non-vertical.