Lens

[0001]FIG. 1 is a top front perspective view of the claimed design;

[0002]FIG. 2 is a front elevation view of FIG. 1;

[0003]FIG. 3 is a top rear perspective view of FIG. 1;

[0004]FIG. 4 is a rear elevation view of FIG. 1;

[0005]FIG. 5 is a right side elevation view of FIG. 1;

[0006]FIG. 6 is a left side elevation view of FIG. 1;

[0007]FIG. 7 is a top plan view of FIG. 1; and,

[0008]FIG. 8 is a bottom plan view of FIG. 1.

[0009]The broken lines shown in the drawings illustrate portions of the lens that form no part of the claimed design.