AUBURN HILLS, Mich., June 19 -- DaimlerChrysler has unveiled a Jeep Grand Cherokee equipped with the company's active night vision as a further test of the infrared system that is capable of illuminating objects up to 500 feet in front of the vehicle. The system, developed by DaimlerChrysler researchers in Ulm, Germany, illuminates the road scene with infrared light energy to detect all objects in the field of view, regardless of temperature. The system reaches beyond the 130-foot range of conventional high-beam headlights and, because infrared energy is invisible to the human eye, does not distract oncoming drivers. "This system enhances the night vision of drivers and thus makes night driving safer, especially for older drivers whose night vision may be less acute," said Steve Buckley, manager electronic product innovation at DaimlerChrysler's Liberty & Technical Affairs group.