Safe light emitting device
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United States of America Patent
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Jan 14, 2003
Grant Date -
Dec 19, 2002
app pub date -
Jun 18, 2001
filing date -
Jun 18, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a safe light emitting device that can avoid danger of explosion and fire whenever over current or over voltage occurs. The light emitting device includes a plurality of light emitting diode lamps in series. At least one of the light emitting diode lamps is a safe light emitting diode lamp. The safe light emitting diode lamp results in a broken circuit when either over current or over voltage in the light emitting device occurs. Through the incorporation of the safe light emitting diode lamp, the series light emitting device will automatically fail whenever over current or over voltage occurs and thus be prevented from explosion and fire.
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