The ornamental design for a projectionlamp, as shown and described.
FIG. 1 is a perspective view of a projection lamp showing my new design;
FIG. 2 is another 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 elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is an enlarged view of portion 9 shown in FIG. 1.
The broken lines in the drawings depict portions of the projection lamp that form no part of the claimed design. The uneven length broken lines in FIGS. 1 and 9 define the boundaries of the enlarged fragment shown in FIG. 9, and also form no part of the claimed design.