LRB-DUO-KL Laser Ray Box DUO

DUO Laser Ray Box  5 - Beams Laser Ray Box - Green Center Beam  Includes all advantages of LRB-ELEC-KL laser Ray Box Electronic and also includes green ray (no.3) in the middle, which shows optical axis. Other four rays (no.1,2,4,5) are red. The Duo Laser Ray Box - Electronic consists of five independent laser modules producing five parallel lines that are collimated by cylindrical lenses to be highly visible. It is taped with magnetized foil, allowing intuitive attachment to a magnetic board or use in conjunction with sheets and models from the KO4100L Set. The laser is very effective in the demonstration of light trace. It also effectively demonstrates the transmission of rays through a combination of optical elements. Five clearly visible parallel line rays can be seen easily due to collimation by cylindrical lenses. Moreover, it increases the comfort of teaching of geometric optics due to electronic shade control and green optical axis which highlighted and, therefore, stands ou