FIG. 1 is a top, rear, left side perspective view of a controller for an electron microscope embodying our new design;
FIG. 2 is a bottom, front, right side perspective view thereof;
FIG. 3 is a top, front, right side perspective view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a right side elevation view thereof;
FIG. 8 is a top plan view thereof;
FIG. 9 is a bottom plan view thereof; and,
FIG. 10 is an enlarged view of the selected portion 10 in FIG. 2.
The dash-dash broken lines shown in the drawings depict portions of the controller for an electron microscope that form no part of the claimed design. The dot-dash broken lines represent boundaries of the enlarged portions and form no part of the claimed design.