Lighting apparatus
US11002426B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2019 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Aug 5, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a lighting apparatus, including a lamp body, an optical element connected with the lamp body, a driving power source assembly, a light source assembly and a reflecting device configured to provide a secondary light distribution for the light source assembly which are received in the lamp body; the reflecting device is provided with a light inlet, a light outlet and a reflecting wall located between the light inlet and the light outlet; the reflecting wall is transparent, and includes an internal surface and an external surface; the internal surface includes a plurality of saw-tooth structures, each of the saw-tooth structures includes a first refracting surface and a second refracting surface intersected with each other, two ends of each of the saw-tooth structures extend towards the light inlet and the light outlet; and the light source assembly is disposed at the light inlet of the reflecting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.