The IR LF of the A1763 core region (same as in Fig. 12; filled red dots: z ∪ z_p sample; filled red squares – slightly displaced along the x-axis for clarity – : z-only sample; 1σ error bars), compared to the best-fit Schechter IR LF of Bai et al. (2009, solid green curve), Chung et al. (2010, dash-dotted pink curve), and Tran et al. (2009, dashed blue curve). Note that the Schechter IR LFs have been corrected to take into account the different survey areas and the different cluster redshifts, as described in the text.