Lighting apparatus
US11234305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2020 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Apr 18, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A LED lighting apparatus includes a housing, a bulb shell, a driver plate, a light source plate, and a driver circuit. The bulb shell is connected to the housing. The bulb shell and the housing form a container space. The driver plate is set in the container space. The light source plate is set in the container space. The light source plate includes a base plate and a light emitting component on the base plate. The driver circuit includes a rectifier circuit and a constant current driver chip which are electrically connected to each other. The rectifier circuit is set on the driver plate. The constant current driver chip is set on the light source plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.