Halogen incandescent lamp for motor vehicles
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United States of America Patent
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Sep 28, 2004
Grant Date -
Feb 21, 2002
app pub date -
May 18, 2001
filing date -
Aug 18, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a halogen incandescent lamp for motor vehicles with an elongate bulb which is closed at one end and has a vacuumtight pinch seal at the other end, with at least one incandescent element arranged in the bulb, with a lamp cap connected to the pinch seal, and with current supply leads which are passed through the pinch seal to the incandescent element, with an annular optical filter which is provided at the closed end of the bulb. It is possible with such a halogen incandescent lamp in a simple manner both to change the subjective impression of the generated light and to improve the objective properties through emphasizing of a desired region of the spectrum.
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