FIELD: instrument making.
SUBSTANCE: result is achieved due to arrangement of elementary photosensitive elements in the space, forming a multi-element photodetector and extraction of information on two angular coordinates of the glowing reference points from their signal values and serial numbers, the value of angular pitch and the angle of inclination of axes of directivity patterns. At the same time the device of the multiple-element photodetector comprises elementary photodetectors arranged with the specified angular pitch relative to a certain axis. The number of elementary photodetectors is at least seven, axes of directivity patterns of elementary photodetectors are arranged at a certain angle different to the straight one and zero one to the axis, relative to which the elementary photodetectors are arranged.
EFFECT: expanded field of view and higher reliability.
3 cl, 7 dwg
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