Light Box with Laser Beams. Five or three parallel bright and sharply defined diode beams 1.6cm apart can be selected for demonstrating the bending of light rays by reflection, Focusing effect, Reflection with mirrors, Fresnel reflection, Monochromatic character of laser light, Total Internal reflection.
A great tool for demonstrating optical ray paths - it can turn optical ray diagrams found in science and physics books into visual reality. The Laser Ray Box consists of five 0.75 mW, 635 nm semiconductor diode lasers, each emitting a highly visible light beam.
Beams are parallel and can be seen in most well-lit rooms. Energy is provided by a rechargeable NiCd battery.
WARNING: This is not a toy and is for educational purposes. Do not shine beams into eyes.