reflex-reflector - a device used to indicate the presence of a vehicle by reflection of light emanating from a light source unconnected with that vehicle, a device intended to produce reflex reflection (...) , at least for a limited range of angles of incidence of a light beam. It may comprise one or more retro-reflecting optical units, for example, corner reflectors or special lens units of glass or plastic. Such devices may be installed generally on unlighted buoys or other navigational aids to increase the range at which they may be seen at night., vahend inimese või muu objekti märgatavuse suurendamiseks pimeda ajal sellelt vahendilt valgusallika poole tagasi peegelduva valguse abil, mis on nähtav lähitulede valgusvihus vähemalt 150 meetrit ja kaugtulede valgusvihus vähemalt 300 meetrit