Vehicle headlamp
US9447940B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2014 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Jan 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/663
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle headlamp includes a first LED light source, a first light guide plate optically coupled to the first LED light source, a second LED light source, a second light guide plate optically coupled to the second LED light source, and a light barrier sheet interposed between the first and second light guide plates. The first light guide plate is configured to guide light emitted from the first LED light source onto a predetermined area thereby creating a second light distribution pattern. The second light guide plate is configured to guide light emitted from the second LED light source onto a predetermined area thereby creating a second light distribution pattern. The light barrier sheet is configured to prevent light transmission between the first and second light guide plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.