VEHICLE LIGHTING UNIT

摘要

A vehicle lighting unit can reduce the load applied to the actuator for driving a reflecting member as well as can improve the durability of the actuator. The vehicle lighting unit can include a light source, a reflecting member configured to reflect light from the light source toward an illumination area, an actuator including inner piezoelectric actuators and outer piezoelectric actuators configured to cause the reflecting member to swing (turn) around X and Y axes simultaneously, to thereby scan the illumination area with the reflected light from the reflecting member horizontally and vertically, and a controller configured to control the inner piezoelectric actuators and the outer piezoelectric actuators such that a scanning frequency in the vertical direction of the reflected light is larger than a scanning frequency in the horizontal direction of the reflected light.

主权项

1. A vehicle lighting unit, comprising:
a light source; a first reflecting member configured to reflect light from the light source toward an illumination area in front of a vehicle body; an actuator configured to simultaneously turn the first reflecting member around a first axis and a second axis, with the first axis and second axis being orthogonal to each other; and a second reflecting member configured to reflect part of the light reflected by the first reflecting member travelling through a predetermined lower passing range to an illumination direction of the reflected light in an upper passing range.