The ornamental design for a lightguidingmember, as shown and described.
FIG. 1 is a front perspective view of a light guiding member showing our new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a cross-sectional view taken along the line of IX—IX of FIG. 3; and,
FIG. 10 is a cross-sectional view taken along the line of X—X of FIG. 3.
The broken lines illustrate environmental structure and form no part of the claimed design. The oblique short lines in the drawings are intended to illustrate that the surface is transparent.