| 摘要 |
A device for determining the spatial position of an object (11) including a plurality of sources (A1, A2, B1, B2, C) emitting beams of the polarized light in different directions and disposed on the object and a plurality of stationary detection devices (21, 22, 23), each having means for measuring the angular orientation of the direction of polarization of a beam of polarized light which they receive relative to a corresponding reference direction. At least two of the sources (A1, B1) emit beams having distinguishable characteristics, but the same direction of polarization, and are arranged so close to each other that a specific detection device (22) always receives at least one or the other of the beams. Means associated with the detection device distinguishes the beams from each other as a function of the characteristics.
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