High-intensity discharge (HID) headlamps have several advantages over tungsten-halogen headlamps which includes greater light efficiency (limens per watt) and a longer service life. However, a safety point of view, the main attraction of HID headlamps is that since they produce more light they have the potential to provide more useful illumination for the driver. But, at the same time, there are safety concerns with the effects of HID illumination on perception of the colors of important objects and glare to oncoming traffic. This paper will review research evidence that has been accumulated over the past 14 years concerning the potential benefits and drawbacks associated with the use of HID headlamps. The paper will conclude that the evidence strongly supports the use of well-designed HID headlamps.
Samenvatting