FIG. 1 is a top perspective view of a luminaire showing a first embodiment of the design;
FIG. 2 is an enlarged fragmentary view of the portion indicated in FIG. 1;
FIG. 3 is a bottom perspective view of the luminaire of FIG. 1;
FIG. 4 is a rear view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a left side view thereof;
FIG. 9 is a right side view thereof;
FIG. 10 is a top perspective view of a luminaire showing a second embodiment of the design;
FIG. 11 is an enlarged fragmentary view of the portion indicated in FIG. 10;
FIG. 12 is a bottom perspective view of the luminaire of FIG. 10;
FIG. 13 is a rear view thereof;
FIG. 14 is a front view thereof;
FIG. 15 is a top view thereof;
FIG. 16 is a bottom view thereof;
FIG. 17 is a left side view thereof; and,
FIG. 18 is a right side view thereof.
The portions of the luminaire shown in broken lines form no part of the design.
The luminaire is shown with symbolic break lines in its length in the second embodiment of the design. The appearance of any portion of the article between the break lines forms no part of the claimed design.