Method and a device for the reduction of margins of the light image of a headlight and the headlight
US9854646B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2016 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Aug 2, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2101/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and a device for the reduction of margins of the light image of a headline, and the headline incorporating the device, is provided, having a reflective diaphragm which is adapted to be shifted in a light axis direction within adjustment limits of a longitudinal position. The margins of the light image can be detected by an optical colour-sensitive photometric sensor, and colour characteristics of the light image margins can be evaluated by identifying a current position of the reflective diaphragm. The reflective diaphragm can then be fixed in the longitudinal position corresponding to selected colour characteristics of the light image margins. The reflective diaphragm can also be adapted to be shifted in a direction perpendicular to the light axis direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.