This Eisco Labs Receiving Screen for Optical Bench features a 100×75mm graph paper screen divided in millimeters, mounted on a post approximately 2.5" tall with a 1/4" diameter. The screen serves as a projection surface for observing real images formed by lenses and mirrors. The millimeter grid allows for direct measurement of image size and position during optics experiments. A valuable component for rounding out optical bench functionality, suitable for physics classrooms studying image formation, focal length, and magnification.