Method for forming a coverage discrete solid angle light beam that is used to obtain unit areas with uniform distribution of light intensity, illuminance and luminance levels on a illumination area which is targeted and evaluated with unit light beams by disassociating the light beam that the polyhedral lighting fixture holds and evaluating it on a targeted basic illumination area, whereby sufficient light is produced, light flux produced is used only in basic illumination area, requirements of basic illumination area are met within photometric standards, uniform illuminance and luminance levels are proved through distribution of light at uniform intensity in basic illumination area, besides, no regions with weak light intensity or dark regions remains in the basic illumination area, quadrilateral light spots falling over the basic illumination area combine together modularly, ensuring continuous, uninterrupted integrated and uniform light coverage, sufficient light production is directed at meeting only the main target illumination area requirements, no light pollution exists as no light is thrown outside the target and besides, no direct glare problem occurs due to the invisibility of the light source outside its own coverage area, the method comprising the steps of: - division of basic illumination area with a quadrilateral structure into uniform unit illumination areas as many as unit light sources, - designation of a reference point high enough to illuminate the basic illumination area as a center, the method being characterized in that it comprises the steps of: - formation of a reference sphere centered at the reference point, with a radius length enough between basic illumination area and designated reference point, - formation of projection appearance pertaining to unit illumination areas on the reference sphere centered at the reference point, - connection of center of unit illumination area to reference point in order to obtain unit light beam axis, - determination of Unit light source positions at equal distance from the said reference point and the radius of the reference sphere, in the direction of the unit light beam axis that were formed and beyond the reference point, - formation of unit light beam solid angle that sets out from the unit light source position and moves ahead by embracing the boundaries of the projection appearance of the unit illumination area on the reference sphere and determines the boundary edges of unit illumination area by its side surfaces, - formation of other unit light beam solid angle embracing the other related unit illumination areas and unit light beam axis by repeating the above mentioned process steps, - coverage discrete solid angle light beam is created according to basic illumination area. - division of basic illumination area with a quadrilateral structure into uniform unit illumination areas as many as unit light sources, - designation of a reference point high enough to illuminate the basic illumination area as a center, the method being characterized in that it comprises the steps of: - formation of a reference sphere centered at the reference point, with a radius length enough between basic illumination area and designated reference point, - formation of projection appearance pertaining to unit illumination areas on the reference sphere centered at the reference point, - connection of center of unit illumination area to reference point in order to obtain unit light beam axis, - determination of Unit light source positions at equal distance from the said reference point and the radius of the reference sphere, in the direction of the unit light beam axis that were formed and beyond the reference point, - formation of unit light beam solid angle that sets out from the unit light source position and moves ahead by embracing the boundaries of the projection appearance of the unit illumination area on the reference sphere and determines the boundary edges of unit illumination area by its side surfaces, - formation of other unit light beam solid angle embracing the other related unit illumination areas and unit light beam axis by repeating the above mentioned process steps, - coverage discrete solid angle light beam is created according to basic illumination area.