FIG. 1 is a perspective view of the photo interrupter in accordance with my new design, showing an upper surface and side surfaces thereof as viewed from diagonally above;
FIG. 2 is a perspective view thereof, showing a bottom surface and side surfaces as viewed from diagonally above;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a left side view thereof, the right side being a mirror image.
The article is a photo interrupter having a light-emitting element and a light-receiving element facing each other; the light-receiving element detects an object blocking light from the light-emitting element, and thus determines a presence and position of the object.