A digital camera feeds information input on an operation panel to a system controller. A worm gear coupled to a DC actuator-motor provides linear movement to a displacement mobile which is coupled to articulated fingers of the artificial hand. A pressure transducer at the inlet to the manifold reads the pressure of the gas source. Auxiliary grip holes are provided at the anchoring portion to enable disengagement of said anchoring portion even in case of breaking of the intermediate neck ; finally, a push rod is removably connected with an end of the anchoring portion itself. In certain example embodiments, a remote phosphor article or layer is disposed opposite the LED at the other end of the aperture.