LED light bulb with segmented LED filament
US10794545B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Jun 6, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED light bulb having a bulb base and a bulb shell connected with the bulb base, the bulb shell having a layer of luminescent material formed in the material of the bulb shell. A stem with a stand extending to the center of the bulb shell is disposed in the bulb shell. A flexible LED filament is disposed in the bulb shell, at least half of the LED filament is disposed around a center axle of the LED light bulb, where the center axle is coaxial with the axle of the stand and two conductive supports, each of which are connected with the stem and the LED filament. A driving circuit is electrically connected with the two conductive supports and the bulb base. Additionally, a plurality of supporting arms has two ends, with one end connected to the stem and the other end connected to the LED filament.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.