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<http://webisa.webdatacommons.org/106988231>	<http://www.w3.org/ns/prov#value>	"ounted in the frame and connected to the computer system, the ranging system including a transmitter positioned to transmit a beam of energy onto an object in a field of view of the eyeglasses, and a receiver positioned to receive energy reflected from the object and supply an electrical signal to the computer system, the computer system being programmed to receive the electrical signal from the r" .
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