Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Flashers
Patent
1987-11-06
1989-09-26
Griffin, Robert L.
Electric lamp and discharge devices: systems
Discharge device and/or rectifier in the supply circuit
Flashers
315174, 315226, 315DIG7, H05B 4114
Patent
active
048703265
ABSTRACT:
A system for driving a neon tube to form luminous bubbles and controlling the motion thereof in which a modulatable high AC voltage source is connected to control a pair of electronic switches in the primary circuit of a high voltage transformer which is connected to electrodes of said neon tube in such a way as to produce the luminous bubbles, which can be stationary or moved at varying speeds and direction by control of width and/or frequency of control pulses applied to the electronic switches. A memory stores predetermined patterns of the direction and speed of said luminous bubbles and microprocessor means for controlling said modulatable AC voltage in accordance with said predetermined pattern by said memory means to cause said luminous bubbles to move in said predetermined patterns of direction and speed. The memory may include a plurality of predetermined patterns stored, and selector for selecting one of said patterns and driving the neon tube therewith. For a plurality of neon tubes arranged in an artful pattern, and a plurality of modulatable high AC voltage AC sources are connected to respective ones of the neon tubes and means for selecting one or more of the predetermined patterns for driving one or more of the neon tubes.
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PCT/US86/00851 Published 11-6-86 (Herrick).
Andresen Jack
Andresen Mark
Griffin Robert L.
Salindong Ted
Zegeer Jim
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