regulation, investigation into the existence and identity of other members of the TNF family is desirable. The identification and characterization of these molecules provide means to identify and treat a variety of immune disorders.

1. Field of the Invention
The present invention relates generally to automotive lighting and, more particularly, to a projection headlamp system employing a combination of components for projecting a wide spread controlled pattern of light.
2. Description of the Prior Art
Incandescent projection headlamp systems have been available on automobiles for a number of years. More recently, projection headlamp systems employing metal halide discharge lamps have been proposed and demonstrated for use on automobiles. These systems use a mask to give the sharp cutoff required for an acceptable low beam illumination pattern.
With the present trend toward automobiles with lower hood lines, smaller projection headlamp systems are of growing interest to the automotive industry. However, the systems proposed thus far have certain inherent limitations making it difficult to reduce their size. Thus, the problem confronting projection headlamp designers is to make a system as small as possible while still providing a satisfactory light pattern.
Consequently, a need still exists for improvements in the design of projection headlamp systems.

Several schemes for determining one's geographic position are available. For example, one way to determine position involves the use of the global positioning system (GPS). The GPS was originally conceived and developed by the U.S. Department of Defense as a military navigation system. Over time, elements of the system have become increasingly available for civilian use.
The GPS uses a constellation of 24 satellites, in a geo-stationary orbit, whereby position can be determined by timing satellite signal journeys from a GPS satellite to a GPS receiver. Five spare orbiting satellites are provided primarily for backup in case one of the 24 satellites fail.
The satell