The ornamental design for a projectiondevice, as shown.
FIG. 1 is a top and front perspective view of a projection device showing our new design;
FIG. 2 is a top and rear perspective view of the projection device of FIG. 1; and,
FIG. 3 is a bottom plan view of the projection device of FIG. 1.
The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. The shading lines shown in the drawings represent the approximate three-dimensional contour of the design, and are not intended to indicate surface decoration.