We claim the ornamental design for a light emitting diode, as shown and described.
FIG. 1 is a top view of a light emitting diode of the present invention;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a sectional view taken along the line 7-7 in FIG. 1;
FIG. 8 is a sectional view taken along the line 8-8 in FIG. 1; and,
FIG. 9 is a sectional view taken along the line 9-9 in FIG. 1.
The cross sectional views shown in FIGS. 7-9 are included for the purpose of showing external surface contours which may not be clear from the remaining illustrations. Any features of internal construction shown are incidental and form no part of the claimed design.