Figure 11
Results of the meridional slope error optimization for selected load cases. The thermal bending moment was minimized by geometrical modification of the mirror cross section. Slope errors σm (a), curvature κm (b) and residual slope errors Δαm (c) are plotted as a function of the geometrical parameter wcut (see Fig. 1) for the pre-selected configuration b60-d80-c20-e25 (mirror width b = 60 mm, height d = 80 mm, cooled and side height c = 25 mm and e = 30 mm, smart-cut height h = 10 mm). |