Neon discharging lamp lighting apparatus with improved lighting
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United States of America Patent
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-
Apr 25, 2000
Grant Date -
N/A
app pub date -
Feb 29, 1996
filing date -
Apr 19, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A neon discharging lamp lighting apparatus comprises a high frequency inverter of which an asymmetrical ratio of an output voltage waveform thereof is designated from 10 to 60% and a low pressure type neon discharging lamp connected to the high frequency inverter. Since the high frequency inverter circuit applies to the low pressure type neon discharging lamp a voltage having a waveform with an asymmetrical ratio for allowing rays of light free from luminance irregularity to be emitted, fringes can be prevented from taking place in rays of light emitted by the low pressure type neon discharging lamp. Thus, the low pressure type neon discharging lamp can operate as a high quality light source.
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