Communications: electrical – Visual indication – Movable
Patent
1982-09-03
1985-06-25
Brigance, Gerald L.
Communications: electrical
Visual indication
Movable
340700, 340795, 340720, 358901, 313475, G09G 322, G09G 100
Patent
active
045257116
ABSTRACT:
A three-dimensional display device incorporating a large number of illumination points located in a regular pattern within a three-dimensional display region is disclosed. The display region is defined by an optically transparent housing, while the illumination points are the exit tips of wave guides such as optical fibers. The fibers are arranged in bundles mounted vertically within the display region, with each bundle consisting of a large number of parallel optical fibers joined together and each fiber terminating in an exit tip at a different location along the longitudinal axis of the bundle. The use of a multiplicity of bundles, each containing fibers arranged in a matrix and having mutually displaced exit tips, produces a large number of illumination points arranged in a three-dimensional lattice within the display region, with each illumination point being definable by its corresponding bundle and its location within that bundle matrix. The ends of the fibers extend out of the display region to light source locations where the input ends of the individual fibers in each bundle interface with suitable light sources such as individual light emitting diodes or a specially adapted cathode ray tube. Information such as the matrix coordinates of illumination points to be activated is stored and processed by a computer or microprocessor to activate selected light sources, whereby an illumination pattern is produced in the display region.
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