Patent ID: 6249998
Filing Date: 2001-06-26
Classification: G09F

Abstract:
A display apparatus for displacement through a swing arc to produce a light display, comprising:a support member having a plurality of spaced luminous devices disposed thereon;said support member being movable through said swing arc;said support member having lighting control means for selectively lighting individual respective ones of said luminous devices at predetermined discrete positions of the respective luminous devices within said swing arc as determined by detection of positions of said support member along said swing arc to create said light display along the swing arc of said support member; andsaid lighting control means including a self-contained position detection means disposed on said support member for deter said positions of said support member and thereby positions of the respective luminous devices by having a body displaceable relative to said support member by movement of the support member and determining said position based on displacement of said body relative said support member.