Patent ID: 11933459
Assignee: LEDVANCE LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 10:
11. A lamp comprising:
electrical leads extending into a supporting stem, the electrical leads in communication with a base electrode, and
a light engine comprising light emitting diode filaments, the light emitting diode filaments comprising a circuit having a plurality of contact pads arranged along a length of a substrate, and a plurality of light emitting diode (LED) chips, wherein each light emitting diode chip in the plurality of chips is engaged to a set of contact pads along the length of the substrate, and a continuous phosphor layer overlying the plurality of light emitting diode (LED) chips, wherein the continuous phosphor layer including first portions that are in direct contact with at least a light transmission surface of the light emitting diode (LED) chips and second portions that bridge across the space separating adjacently positioned light emitting diodes, the second portions that bridge across the space separating adjacently positioned light emitting diodes encapsulating an air gap therein.