| 摘要 |
Apparatus for determining a distance of a target, the apparatus comprising a pulse transmitter, a gatable beam detector, and a comparator, the gatable beam detector being operable to obtain gated and calibration beam energy information of a pulse transmitted by the beam pulse transmitter for reflection from the target, and to pass the beam energy information to the comparator, thereby to obtain a ratio between the gated and the calibration beam energy, the ratio being inversely proportional to the distance. Also an array thereof for simultaneously obtaining distances of a multiplicity of points of a three-dimensional object in real time, in particular to obtain movement information of the target.
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