Arrangement in vehicle headlamps
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United States of America Patent
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-
Jul 14, 1992
Grant Date -
N/A
app pub date -
Apr 24, 1991
filing date -
Apr 27, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arrangement in vehicle headlamps which are intended to emit a significant proportion of ultraviolet light. The invention is characterized by a control circuit (1) for adjusting, via means (3; 5, 9, 10), the intensity of the ulraviolet light emitted by the headlamp (6); vehicle speed sensing means (2) intended to deliver to the control circuit (1) an electric signal corresponding to prevailing vehicle speed; and further characterized in that the control circuit (1) is constructed to decrease said intensity to a predetermined, lower level when the speed lies beneath a predetermined value, and to increase the intensity to a predetermined, higher level when the speed lies above a predetermined value.
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