Light source detection and categorization system for automatic vehicle exterior light control and method of manufacturing
US6774988B2 · kind B2 · utility
153Cited by
52References
114Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Aug 20, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2300/45
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The optical system of the present invention includes a lens system assembly, a spectral filter material and a pixel array configured such that small, distant, light sources can be reliably detected. The optical system of the present invention provides accurate measurement of the brightness of the detected light sources and identification of the peak wavelength and dominant wavelength of the detected light sources. Use of the optical system of the present invention provides the ability to distinguish headlights of oncoming vehicles and taillights of leading vehicles from one another, as well as, from other light sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.