Device for improving visibility in vehicles
US7015944B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2002 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Jan 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/9323
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a device for improving visibility in a vehicle, especially in darkness, bad weather and fog, including one or more laser headlights radiating laser light of a wavelength outside the visible spectrum into a predetermined solid angle area ahead of the vehicle, a camera which is sensitive outside the visible spectrum and used for taking images of current traffic scenes, as well as an optical display system in the vehicle for reproducing the captured images in the visible spectrum. According to the present invention, provision is made for at least two different types of laser headlights which each illuminate different parts of the solid angle area to be observed to produce an angle-dependent radiation pattern of the laser light in a simple manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.