Headlamp for vehicles
US9651213B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2013 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Dec 14, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/25
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A headlamp for vehicles having numerous groups of LED light sources and having numerous optical units with different projection characteristics, such that a first light spot projected by a first optical unit is of a different size than a second light spot projected by a second optical unit, wherein a first subsidiary light distribution is formed by the first light spots, and a second subsidiary light distribution is formed by the second light spots, and the groups of LED light sources can be activated such that a predefined overall light distribution is formed by superimposing the subsidiary light distributions, wherein the optical units are designed such that all light spots have the same width, and the light spots projected by the various optical units have different heights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.