Lighting Device

FIG. 1 is an isometric view of a top, front, and right side of an ornamental design for a lighting device;

FIG. 2 is a top plan view of the lighting device of FIG. 1 ;

FIG. 3 is a bottom plan view of the lighting device of FIG. 1 ;

FIG. 4 is a front elevational view of the lighting device of FIG. 1 ;

FIG. 5 is a rear elevational view of the lighting device of FIG. 1 ;

FIG. 6 is a right side elevational view of the lighting device of FIG. 1 ;

FIG. 7 is a left side elevational view of the lighting device of FIG. 1 ;

FIG. 8 is an isometric view of the bottom, rear, and left side of the lighting device of FIG. 1 ; and,

FIG. 9 is a cross-sectional view of the lighting device taken through line 9 - 9 of FIG. 2 .

The dash-dash-dash lines are included for the purpose of illustrating portions that form no part of the claimed design. The oblique shade lines depict transparent or translucent surfaces.