An arrangement for {HEAD ~ the remote actuation} of a controlled device, {TAIL ~ e.g. a hydraulic valve}, in situations with stringent safety requirements, uses optical power 
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An arrangement for { HEAD ~ the remote actuation } of a controlled device , { TAIL ~ e.g. a hydraulic valve } , in situations with stringent safety requirements , uses optical power
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH