Fibre optic active components and devices - Performance standards - Part 2:850 nm discrete vertical cavity surface emitting laser devices (IEC 62149-2:2009); German version EN 62149-2:2009— 21 стр.
Safety of machinery - Electro-sensitive protective equipment - Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs)— 104 стр.