Apparatus for automatically adjusting optical axis of vehicle headlights
US6572248B2 · kind B2 · utility
13Cited by
2References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Sep 28, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2300/42
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a vehicle headlight optical axis adjusting apparatus, inter-vehicle distance in each of divided zones is detected by a laser radar device. Desired optical axis raising angles for a vehicle headlight are calculated based on these inter-vehicle distances of the divided zones. The optical axis of the headlight is adjusted to the most downward pointing angle selected from among these angles, so that a driver of a preceding vehicle is not blinded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.