Techniques are provided for manufacturing a light-emitting device having high internal quantum efficiency, consuming less power, having high luminance, and having high reliability. The invention relates to an automatic dishwasher comprising a cabinet that defines a washing chamber. The box body defines a small volume space and the cover body surrounds the box side plates when the extension plates are folded over the box side plates. Face portions are provided with face cutting edge portions, and with a first dish portion adjacent each of the cutting edge portions sloping inwardly and downwardly generally toward a central longitudinal axis at a first dish angle alpha.