LED lighting device
US11885481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Aug 27, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides an LED illumination device, including: a light source carrier including a base, an accommodating space formed on the base; a light emitting unit including a light emitter and a lamp board fixed to the light source carrier; and an optical member covering or at least partially covering the light emitting unit. The light emitting unit and the optical member are both disposed in the accommodating space. The optical member includes a first light distribution unit and a second light distribution unit. At least 70% of a luminous flux generated by the light emitter in operation is directly emitted from the LED illumination device through the second light distribution unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.