I claim the ornamental design for a lighting fixture, as shown and described.
FIG. 1 is a perspective view of a lighting fixture showing a first embodiment of the new design. This fixture has three-way, one hundred twenty degree overall rotational symmetry. The lamp bases and center pieces each have a circular horizontal cross-section.
FIG. 2 is a perspective view of a lighting fixture showing a second embodiment of the new design. This fixture has five-way, seventy-two degree overall rotational symmetry. The lamp bases and center pieces each have a circular horizontal cross-section.
FIG. 3 is a perspective view of a lighting fixture showing a third embodiment of the new design. This fixture has mirror image symmetry, one hundred eighty degree overall rotational symmetry, and mirror image symmetry along a first vertical imaginary plane and also mirror image symmetry along a second vertical imaginary plane, with the first and second vertical imaginary planes being orthogonal to each other. The lamp bases and center pieces each have a circular horizontal cross-section; and,
FIG. 4 is a perspective view of a lighting fixture showing a fourth embodiment of the new design. This fixture has three-way, one hundred twenty degree overall rotational symmetry. The lower arms have six-way, sixty degree overall rotational symmetry. The lamp bases and center pieces each have a circular horizontal cross-section.
The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.