Lighting apparatus
US11598511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2021 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Feb 23, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting apparatus includes a light source plate, a surface rim and a light passing cover. The light source plate is mounted with a light source. The light source plate is placed upon the support plate. The surface rim has an inner wall and an exterior wall. The inner wall has a top part and a bottom part. A bottom diameter of the bottom part is smaller than a top diameter of the top part. The light source is placed closer to the bottom part of the inner wall and surrounded by the bottom part of the inner wall. The light passing cover is attached to the top part of the inner wall. An exterior edge of the exterior wall is attached to a peripheral edge of the support plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.