The ornamental design for a lightglobe, as shown and described.
FIG. 1 is an enlarged bottom perspective view of a light globe in accordance with my design;
FIG. 2 is an enlarged side elevation view of the light globe in accordance with my design, all sides being indentical in shape;
FIG. 3 is an enlarged top plan view of the light globe in accordance with my design; and,
FIG. 4 is an enlarged bottom plan view of the light globe in accordance with my design.
The broken lines showing environmental structure are for illustrative purposes and form no part of the claimed design.
Features of the design include the shape and configuration of the article and/or the pattern and ornament applied to the article as shown in the draftsman's representations, the article having randomly arranged semi-opaque particles in or on the article.