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A big step in improving visibility, safety and comfort during night-time driving is given by a headlamp with a swiveling low beam unit (dynamic bending) and/or an additional light unit for side illumination (static bending). These new technologies in headlamps will improve the illumination of curves and intersections, and will reduce driver's stress and fatigue, which is often associated with difficult night-time driving conditions. To focus on these new technologies and their benefits there has been made description, comparison and evaluation of their use. This paper includes a recommendation for the light distribution, side spread and intensity of illumination by the static bending and the dynamic bending light and analyzes three possible solutions of a bending system using static bending, dynamic bending and combination of these systems too.

The Principle of the Global Vehicle Lighting System (GVLS) is characterized by optimized vehicle space light intensity distribution provided by the different contributions of the offside (close to central line) and nearside (near to road curb) headlamps. Today's existing headlamps have approximately the same light beam geometry and spread of light intensity. The offside GVLS headlamp has a bigger spread and lower light intensity, therefore the glare effect is lower. The nearside headlamp has a lower spread and higher light concentration, producing better luminance contrast and illumination of the nearside road curb. This solution reduces the individual projection of the headlamps' low beam and high beam hot spots and so only one integral lighting patch is perceived. This increases the lateral homogeneity of the illuminated road surface at distances of more than 25 meters. The light beams have different geometry, spread and hot spot values.

Signal lamp for a motor vehicle with a complex reflector design is presented. The reflector is composed of set of rectangular bicubic Bezier ‘pillows’ creating desired horizontal and/or vertical light spread. Cover lens with no or weakly-spreading optics is assumed. Mathematical background is discussed in part 2 - parametric equations for individual pillow are presented, equations for control points ensuring proper optical function of the pillow are derived and parameter controlling intensity distribution of output beam is introduced. Option to prevent beam asymmetry of conventional signal lamps with big rake angles of cover lens using ‘semicomplex’ optical system (i.e. complex reflector combined with optical elements on the cover lens) is discussed, too.