Headlamp

FIG. 1 is a front, left-side, top perspective view of a headlamp, showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left-side elevational view thereof;

FIG. 5 is a right-side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front, right-side, top perspective view thereof in a state of being attached to a headband.

The broken lines depict parts of the headlamp that form no part of the claimed design.