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

Claim 0:
1. 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 light emitting diode (LED) chips engaged to the contact pads along the length of the substrate to provide that the light emitting diode (LED) chips are electrically connected in series, wherein each light emitting diode (LED) chip includes at least a light transmission surface that is in contact with an individual portion of phosphor for the LED chip, the individual portion of phosphor having a conformal thickness.