FIG. 1 is a front perspective view of a first embodiment of the invention.
FIG. 2 is a right side elevation view of FIG. 1.
FIG. 3 is a top plan view of FIG. 1.
FIG. 4 is a left side view of FIG. 1.
FIG. 5 is a bottom plan view of FIG. 1.
FIG. 6 is a front elevation view of FIG. 1.
FIG. 7 is a rear elevation view of FIG. 1.
FIG. 8 is a front perspective view of a second embodiment of the invention.
FIG. 9 is a right side elevation view of FIG. 8.
FIG. 10 is a top plan view of FIG. 8.
FIG. 11 is a left side view of FIG. 8.
FIG. 12 is a bottom plan view of FIG. 8.
FIG. 13 is a front elevation view of FIG. 8.
FIG. 14 is a rear elevation view of FIG. 8.
FIG. 15 is a front perspective view of a third embodiment of the invention.
FIG. 16 is a right side elevation view of FIG. 15.
FIG. 17 is a top plan view of FIG. 15.
FIG. 18 is a left side view of FIG. 15.
FIG. 19 is a bottom plan view of FIG. 15.
FIG. 20 is a front elevation view of FIG. 15; and,
FIG. 21 is a rear elevation view of FIG. 15.
The surfaces are lightly lined for contour and no claim is made to any particular surface texture. The dashed lines indicated disclaimed portions of the design, and no claim is made to the designated portions indicated by dashed lines, including without limitation any pivot members, support elements, or the light element surface itself.