To demonstrate principles of light and reflection. The reflector features three front-surfaced triangular mirrors mounted at right angles to one another on a hardwood base. Light beams hitting any of the mirrors from any angle are bounced off the other two mirrors and reflected back in the same direction they came from. With instructions.

To demonstrate basic principles of light and color. The kit contains a double convex lens, a double concave lens, a plain lens, a clear glass screen, a glass mirror, a white plastic screen, 4 cellophane squares (4 colors), 3 lens/mirror supports, an acrylic equilateral prism, graduated plastic beaker, candle, and flashlight. They are packed in a reusable storage case. Complete with instructions.

A 500 mm dia. disc, marked every 5°, is mounted on a heavy stand and is rotatable around its center. It can be held in any desired position. The lamp house, with a 12V 24 W special filament lamp has rotatable slots to provide light beams of varying widths and also narrow single, double, and triple beams. Attached to the lamp house is an adjustable lens carrier with the lens to provide diverging, parallel or converging light beams that are clearly visible in the classroom. The lamp house can be held in any desired position around the disc. Optical elements are two 50 x 25 mm plane glass mirrors and a metallic cylindrical mirror, each mounted in a holder, for reflection. For refraction, a 20 mm thick acrylic semi-circular block, biconvex lens, bi-concave lens each 140mm long and a trapezium with a 125 mm base are provided. Each of these elements has embedded magnets to hold onto the disc.