For carring out the measuring, a transmitting fiber optic and a receiving fiber optic in the endoscope are guided separately to respective separate optic modules at {HEAD ~ the front end} of {TAIL ~ the endoscope} 
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For carring out the measuring , a transmitting fiber optic and a receiving fiber optic in the endoscope are guided separately to respective separate optic modules at { HEAD ~ the front end } of { TAIL ~ the endoscope }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL