Laser lighting device for vehicle headlamps having a plurality of laser light sources, a coresponding plurality of light guides each having a different sized cross section, optical scanner and a light conversion means
US10288242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jul 19, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a laser lighting device for vehicles comprising two or more laser light sources, wherein each is configured to generate a primary laser light beam, a light guide associated with each laser light source, wherein each primary laser light beam is coupled into the first end of the guide and coupled out of the second end of the guide as a secondary laser light beam, and each secondary laser light beam is directed onto a light conversion means so as to generate a predefined luminous image thereon, which via a projection system associated with the light conversion means is projected as a light image onto the roadway, wherein each primary laser light beam has a first intensity profile, each secondary laser light beam has a second intensity profile different from the first intensity profile, and each secondary laser light beam is directed via a microscanner onto the light conversion means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.