The infrared LF at zs2 obtained in this work (dark shaded area and dashed line) as compared with the determinations of other authors. The infrared LF at zs2 obtained by Caputi et al. (2007, we are using their double exponential function) is represented by the dashed dotted line. Empty circles represent the infrared LF at zs2 inferred by Pérez-González et al. (2005). Empty diamonds represent the infrared LF at zs2.3 inferred by Reddy et al. (2008). Empty triangles represent the infrared LF at zs2.5 inferred by Chapman et al. (2005). Filled black diamonds and empty squares represent the infrared LF that we would have inferred using our 24 μm sample and the unscaled LDP or CE01 SED libraries respectively. The horizontal dashed line presents the source density below which the number of sources in the volume of GOODS and in a luminosity bin of 0.5 dex is less than 2. The vertical dashed line represents the corresponding luminosity using the best fit of our infrared LF.