Light bulb

[0001]FIG. 1 is a front, left perspective view of a light bulb showing our new design;

[0002]FIG. 2 is a front view of the light bulb;

[0003]FIG. 3 is a rear view of the light bulb;

[0004]FIG. 4 is a left side view of the light bulb;

[0005]FIG. 5 is a right side view of the light bulb;

[0006]FIG. 6 is a top plan view of the light bulb; and,

[0007]FIG. 7 is a bottom plan view of the light bulb.

[0008]In the drawings, the broken lines illustrate portions of the light bulb in which the design is embodied and form no part of the claimed design.