Bifunctional headlamp having a rotating shield with integral actuator
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United States of America Patent
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Issued Date -
Oct 14, 2004
app pub date -
Apr 9, 2003
filing date -
Apr 9, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A bifunctional headlamp having a bulb shield operable to project a low beam light pattern or a high beam light pattern. A bulb shield surrounds a bulb inside a housing. The bulb shield is attached to an actuator, which rotates the bulb shield about the bulb. The bulb shield contains projections placed opposite one another on the bulb shield, which serve to selectively shield portions of emitted light from the bulb from reflecting out of the housing. The selective shielding of the light emitted from the housing allows the bifunctional headlamp to utilize one bulb for both a low beam pattern and a high beam pattern. The use of one bulb for two functions reduces complexity and electrical requirements.
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