Laser, not for medical purposes; electronic light control apparatus; light emitting diodes, including organic light-emitting diodes, laser diodes, especially power laser diodes and semi-conductor power laser diodes for material processing; semi-conductor components, namely, Opto-electronic semiconductors, fibre-optical LED electrical light conductors, opto-electronic couplers; optical sensors, light barriers, light-emitting diode modules, namely, modules with light functions for signaling pur...