Lighting tool for vehicle
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United States of America Patent
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Aug 27, 2019
Grant Date -
Jan 17, 2019
app pub date -
Jul 9, 2018
filing date -
Jul 14, 2017
priority date (Note) -
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Abstract
A lighting tool for a vehicle that radiates light from a vehicle toward a road surface, the lighting tool for a vehicle including a light source device, a light modulation device that modulates light emitted from the light source device to form multi-gradation light including a high gradation part, a low gradation part and a zero gradation part, a projection unit that projects the multi-gradation light emitted from the light modulation device to the road surface as a light distribution pattern, and a control unit that controls the light source device and the light modulation device, wherein the light modulation device forms a drawing pattern as the high gradation part which is surrounded by the low gradation part in the light distribution pattern.
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