Light source detection and categorization system for automatic vehicle exterior light control and method of manufacturing
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United States of America Patent
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Aug 10, 2004
Grant Date -
Feb 5, 2004
app pub date -
Jul 30, 2002
filing date -
Jul 30, 2002
priority date (Note) -
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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.
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