It is still the object of this invention to provide an encoder wherein {HEAD ~ light} is transmitted to said {TAIL ~ light} detecting means via an editing means 
is transmitted to
It is still the object of this invention to provide an encoder wherein { HEAD ~ light } is transmitted to said { TAIL ~ light } detecting means via an editing means
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH