Lighting device
US11846415B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2022 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Jul 14, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The purpose is to realize a lighting device of thin, small light distribution angle and high intensity illumination. The invention is: a lighting device, which emits light in a direction perpendicular to a normal surface, including: light source units, disposed radially with a certain azimuth with respect to a center of the lighting device, each of the light source units, having an optical axis parallel to the major surface, and emitting light toward the center of the lighting device, each of the light source units including a funnel shaped reflector, which has an opening and a neck, and an LED light source disposed at the neck, mirrors disposed opposing to the openings of the light source units, in which the mirrors reflect light emitted from the light source units to the direction perpendicular to the major surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.