Vehicular headlamp
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United States of America Patent
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Jul 20, 2010
Grant Date -
Jan 10, 2008
app pub date -
Jul 3, 2007
filing date -
Jul 5, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicular headlamp including a light amount control device that controls the amount of light from at least two of a plurality of light source units each having a light-emitting element as the light source. The light amount control device performs a contrasting control of the lamp to increase the amount of light from at least one of the light source units and decrease the amount of light from the other light source unit, thus enhancing the visibility by increasing the amount of light from one light source unit and enhancing the brightness in an area that the unit illuminates, and decreasing the amount of light from the other light source unit that illuminates an area where visibility is required less, lowering the power consumption.
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