Accordingly, the output intensity of {HEAD ~ infrared laser lights} output to {TAIL ~ the detection region A} as drawn in dashed line in FIG 10 of the waist camera C2 disposed in the first robot R1 can be decreased 
output to
Accordingly , the output intensity of { HEAD ~ infrared laser lights } output to { TAIL ~ the detection region A } as drawn in dashed line in FIG 10 of the waist camera C2 disposed in the first robot R1 can be decreased
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH