LED TUBULAR LAMP AND LIGHTING FIXTURE ARRANGEMENT
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United States of America Patent
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Issued Date -
Nov 29, 2012
app pub date -
Jan 27, 2012
filing date -
Jan 31, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A LED tubular lamp comprising a translucent tube (30) of the shape and size of a fluorescence tube with a contact pin pair (37, 38, 39, 40) at both ends thereof for connecting a LED tube mechanically and electrically to the tube holders of the fluorescent tube lighting fixture. LED components (32) and a current control unit (33, 34) are installed inside the LED tube. The LED tubular lamp also comprises a voltage level sensor circuit (42, 43) that is arranged to detect automatically a voltage difference in the contact pin pair at least at one end of the tube and to determine from the voltage difference brightness and/or colour control information for the current control unit (33, 34) of the LED components.
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