Three- and two-dimensional images formed by suspended or transitory colorant in a volume

摘要: An arbitrary 3D or 2D shape is formed by construction from colorant in a volume—which may be cylindrical, annular, of cross-section, depending on form the invention. In some forms, 2D-extended array colorant-ejecting nozzles disposed particular linear direction relative to volume, and programmed processor controls ejection pass through volume. A colorant-retrieving frame (ideally back-to-back with array) second opposite one direction, array, recover thus erase image—which can then refreshed, animation changes if desired, writing array. Colorant moved volume gravity, continuous material suction at suspending fluid flow—the moving equal but velocity so that image stationary. The passive sump for recovery, has pump returning reuse—in which case best ejects plural properties device filters separate retrieved those properties. stroboscopically lighted display apparent motion an element. force field used control, help position after ejection.