Luminaire

FIG. 1 is a top-left-front perspective view of a luminaire according to our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

The dashed broken lines in the drawings show portions of the luminaire that form no part of the claimed design.