Science and Education Publishing American Journal of Mechanical Engineering 1 7 2013 11 25 Use of Safety Light Curtains in Mechatronic Systems 194 197 EN Ján Ivanka Department of Security Engineering, Tomas Bata University in Zlín, Czech Republic AJME2013178 10.12691/ajme-1-7-8 2013 10 28 2013 11 13 2013 11 25 The article describes some of the aspects of how the optosensors and laser scanners can be used in the field of security of protected areas and safety fields. The article presents some of the applied possibilities of measuring on spherical area using transmission formulas for gaining data and actual setting of active elements of the optosensors and laser scanners for the environment in a 3D application mechatronic system.