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US 11,079,073 B2Granted
Tubular solid state lighting
AssigneeSignify Holding B.V.
InventorHaimin Tao
Life of this patent
Estimating the term…
Abstract
The invention provides a tubular solid state lamp having a driver at each end each with an associated section of the solid state light source arrangement. The two drivers are for connection in series so that the mains voltage is shared between them. In this way, each end connector of the lamp holder is only required to operate at half the mains voltage so that a lower creepage distance (e.g. 2 mm) can be tolerated.
Claims12
A tubular solid state lamp for connecting to a fluorescent luminaire and for direct connecting with a mains voltage, the tubular solid state lamp comprising:
- a first pair of connection pins at one end of the tubular solid state lamp and a second pair of connection pins at the other end of the tubular solid state lamp;
- a solid state light source arrangement comprising a first section and a second section;
- a first driver electrically coupled to the first pair of connection pins and connected to the first section of the solid state light source arrangement for driving the first section;
- and
- a second driver electrically coupled to the second pair of connection pins and connected to the second section of the solid state light source arrangement for driving the second section, wherein the first section and the second section have no electric connections between them and wherein the first driver and the second driver are externally interconnected in series so that the mains voltage is shared between them, wherein an external interconnection is provided by the fluorescent luminaire.
2 more elements
Dependencies are inferred from the claim text.