Method of providing modulated illumination of a road, and a vehicle headlight for performing the said method
US7347595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2006 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Jun 30, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2300/45
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method of lighting a road with a vehicle headlight, in which the projected light is modulated in response to the presence of any persons on the road. The method comprises the following operations: detecting in the road scene at least one person, pinpointing the location of the person in the road scene, creating on an imager a mask having dimensions and position corresponding to the person, and lighting the road through the imager, to create a projected shadow around the person.The invention also provides a headlight for performing this method and having a first light source towards the imager, and an electronic system for generating light-occulting masks on the imager.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.