BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a bulb-sorting device according to a preferred embodiment of the invention;
FIG. 2A and FIG. 2B respectively illustrate a perspective of a positioning mechanism and a bulb of FIG. 1 before and after the bulb is rotated;
FIG. 3 is a block diagram of a sensing element, a comparing unit, a display unit and a recording unit of bulb-sorting device of the invention;
FIG. 4 shows a bulb-sorting device and a linking body according to a preferred embodiment of the invention;
FIG. 5 is a flowchart of a bulb sorting method of the invention; and
FIGS. 6A˜6B are diagrams of image comparison according to the bulb sorting method of the invention.