Domestic refrigerator having a wall lighting module

A domestic refrigerator having a cold chamber delimited by walls, and at least one lighting module inserted into a wall opening of a delimiting wall of the cold chamber, the at least one lighting module comprising:

• a planar, transparent light outlet plane arranged parallel to the delimiting wall and having a transmittance of not less than 90% in the visible spectrum;
• a frame, inserted into the wall opening, for holding the light outlet pane, wherein the frame, on the side of the delimiting wall facing the cold chamber, overlaps the opening edge all round the wall opening and the light outlet pane is inserted into the frame inside the contour of the wall opening, wherein the light outlet pane, on its pane side remote from the cold chamber, rests along its pane periphery on a support shoulder formed by the frame;
• a light source arrangement having at least one light-emitting diode, wherein, in a projection perpendicular to the pane plane of the light outlet pane, each light-emitting diode of the light source arrangement is arranged so that it is concealed;
• and
• a light reflection surface, arranged behind the light outlet pane and irradiated by each light-emitting diode of the light source arrangement, for reflecting light in the direction towards the light outlet pane, wherein the light reflection surface, in a region that is visible through the light outlet pane when viewed perpendicularly to the pane plane, has all over a roughness depth Rz of not less than 2.5 μm and not more than 8.0 μm and an arithmetical mean roughness value Ra of not less than 0.63 μm and not more than 2.4 μm.