Lighting device of small thickness and producing uniform illumination
US10551025B2 · kind B2 · utility
1Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2018 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Sep 12, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device, in particular for a motor vehicle, including a substrate; light sources of the side-emitting LED type, which are placed on the substrate and which illuminate in main directions that are orientated along the substrate; and a screen placed so as to receive the light rays emitted by the light sources. The substrate includes windows and the lighting device furthermore includes reflective surfaces that are placed facing the windows so as to reflect, toward the screen, a portion of the light rays emitted by the light sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.