Low Density (F) Optics: Bcl 500 I \ Bcl 501 I Of 100 H; Figure 5.28: "Low Density" Reading Field Curve For Oscillating-Mirror Scanners With Heating; Figure 5.29: Lateral "Low Density" Reading Field Curve For Oscillating-Mirror Scanners With Heating - Leuze electronic BCL500i Technical Description