Lighting apparatus
US10557599B2 · kind B2 · utility
0Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2017 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Jan 16, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V11/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination apparatus includes: a reflector having a first reflection surface with a shape of a surface of revolution, and a downward light emission outlet through which direct light from a light source and reflection light from the first reflection surface being emitted; and a cone having a substantially truncated conical second reflection surface, an upper opening opposing the light emission outlet, and a lower opening having a larger diameter than the upper opening. The cone is positioned outside the optical paths of the controlled reflection light from the first reflection surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.