A household appliance (1), in particular a refrigerator, has a treatment room (4) and an image projector (13, 14) for projecting light information into the treatment room (4), which image projector (13, 14) has at least one light source (13) and at least one of the at least one light source (13) optically downstream deflecting mirror (14), at least one deflecting mirror (14) for enlarging a projection area (6) over a width of the treatment room (4) having an uneven reflection surface (14a) and / or being pivotable . The invention can be applied particularly advantageously to the irradiation of light information into a cooling space of a cooling device, in particular a refrigerator, in particular a refrigerator equipped with a double wing door.
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