Penumbra profile Iz(r) for several serrated occulters Nt = 464 teeth in logarithmic scale in the range r ≤ 200 mm. Red shows Δ = 10 mm. Blue represents Δ = 20 mm. Green plots Δ = 30 mm. Yellow depicts Δ = 40 mm. Black showsthe sharp-edged disk. The black dashed line shows the apodized disk.