Electro-optic filter for vehicle imaging system
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United States of America Patent
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-
Dec 23, 2003
Grant Date -
Dec 12, 2002
app pub date -
Jul 26, 2002
filing date -
May 24, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicular imaging system for capturing an image includes an imaging sensor and an electro-optic filter. The electro-optic filter is operable to attenuate light in response to a voltage applied to said electro-optic filter. The electro-optic filter is positioned along an optic path between the imaging sensor and a scene being captured by the imaging sensor. The imaging system includes a control for applying the voltage to the electro-optic filter. Preferably, the control is operable to selectively apply the voltage to the electro-optic filter. Preferably, the control is operable to selectively apply the voltage to the electro-optic filter in response to an ambient light intensity.
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