Headlamp for vehicles having at least one laser light module
US10480739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A headlamp (1) for vehicles having at least one laser light module (3l, 3m, 3r) which has a laser light source (11) and a phosphorus element (13) which is arranged downstream of the latter in the beam path and a front-end optical system (16) in which the at least one laser light module is arranged in a housing (2) of the headlamp which has a projection optical system (4) for projecting the light distribution generated in the focal plane of the projection optical system of the at least one laser light module into the carriageway space, and at least one deflection prism (20; 22, 23) is integrated into the at least one front-end optical system (16), which deflection prism (20; 22, 23) lies in the region of the laser beam (15; 15-1, 15-2) which occurs when the phosphorus element (13) is defective or missing and which deflects this laser beam occurring in the event of disruption and keeps it away from the projection optical system and therefore from the carriageway space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.