The ornamental design for a projector, as shown and described.
FIG. 1 is a perspective view of a projector showing my new design; and
FIG. 2 is a front elevational view thereof.
FIG. 3 is a cross sectional view thereof along the line 3-3 of FIG. 2.
FIG. 4 is an enlarged cross sectional view thereof along the lines 4-4 and 4′-4′ of FIG. 3; and,
FIG. 5 is a bottom plan view of the projector of FIG. 1.
The portions indicated in broken lines are for illustrative purposes only and form no part of the claimed design. Dot-dash broken lines define the boundaries of, but are not included in, the claimed design.