The ornamental design for an opticalelement for vehiclelighthead, as shown and described.
FIG. 1 is a front, top and right side perspective view of an optical element for vehicle lighthead showing the new design;
FIG. 2 is a front view thereof;
FIG. 3 is a left side view of the optical element for vehicle lighthead, wherein the right side view is a mirror thereof;
FIG. 4 is a top view of the optical element for vehicle lighthead, wherein the bottom view is a mirror thereof;
FIG. 5 is a sectional view of FIG. 2 in A-A line;
FIG. 6 is a front, top, and right side perspective view of the optical element for vehicle lighthead shown in an example environment; and,
FIG. 7 is a front, top, and right side perspective view thereof shown in another example environment.
The broken lines depict the example environment and portions of the optical element for vehicle lighthead in which the design is embodied that from no part of the claimed design.