Equivalent isotropic luminosity, Lⁱ (in units of L_Edd), for supercritical disk Models A (turquoise line), B (magenta line), and C (green line) as measured by an observer at different inclination angles i. The labels along the curves mark the true isotropic luminosities (in units of Eddington) radiated by the thick disks. The square symbols mark the half-power beam width – the inclination angle i_1/2 at which the observed luminosity falls to 50% of the peak value. In the wider opening angle case, there is little beam-broadening by scattered radiation.