| 摘要 |
A lighting system for a road vehicle includes a projector for producing a beam of light illuminating the road in front of a vehicle equipped with the lighting system. The projector includes a light source, a focussing device for producing an image in an aperture in a mask positioned in front of the light source, and a lens positioned on the side of the mask remote from the light source the lens directing the light issuing through the aperture in the mask to constitute the beam. A shutter is movable across the aperture in the mask in response to light received from in front of the vehicle. As the shutter moves across the aperture, the projected beam is progressively cut off from one side thereof. The lens of the projector is so disposed with respect to the remainder of the system that a generally horizontally extending diameter of the lens lies at an angle of between 88 DEG and 84 DEG to the optical axis of the projector, the lens being tilted about a vertical axis towards the near side of the vehicle.
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