LED filament and LED light bulb
US12359779B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2024 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Aug 23, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H29/8516
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED light filament includes an LED section, first and second conductive electrodes, and a conductive portion. The LED section includes LED chips. The first conductive electrode and the second conductive electrode are disposed at two ends of the LED section. The conductive portion is electrically connected between the LED chips. An LED chip among the LED chips has an electrical connecting portion, an end portion of the conductive portion is connected to the electrical connecting portion, the conductive portion has a first bent portion and a second bent portion. The conductive portion extends from the electrical connecting portion along a first direction of the LED chip, toward a second direction of the LED chip through the first bent portion, and toward a third direction of the LED chip through the second bent portion, and the first to third directions are different directions. An LED light bulb is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.