Range finder wherein distance between target and source is determined by measuring scan time across a retroreflective target

摘要: A target has leading and trailing edges which are boundaries between a retroreflector non-retroreflector. The is used in determining apparatus for distance, width, azimuth, gauging, profiling, object detection, particular identification. laser light source scans along scanning path across the target. reflects back toward means where it received photoreceptor to determine angles of edges. distance width inversely proportional length time that beam also reference point this reflection from directly azimuthal position relative reference. Further, may include plurality reflective non-reflective strips transverse establish binary indicia on This results series pulses as information then decoded hence identify foregoing abstract merely resume one general application, not complete discussion all principles operation or applications, be construed limitation scope claimed subject matter.