Filament-free lamp tube structure

Details Filament-free lamp tube structure Filament-free lamp tube structure

1992-02-24

1993-04-06

Mis, David

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315326, 313631, H05B 4129

Patent

active

052006719

ABSTRACT:
A filament-free lamp tube having no filament while still achieving illuminating effect, comprising an electronic circuit, wherein AC power is rectified, filtered, oscillated and amplified to generate a high frequency which is directly input to two ends or positive
egative ends of the lamp tube so that electrons of the mercury vapor inside the lamp tube are energized to collide with the fluorescent wall of the lamp tube so as to emit light.

REFERENCES:
patent: 4748383 (1988-05-01), Houkes
patent: 5043627 (1991-08-01), Fox

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