FIELD: packaging industry.
SUBSTANCE: system (1) has at least a lighting unit (3) and at least an optical device (4) with at least one chamber (5), at that the lighting unit (3) has the plurality of light sources arranged on several conductor strips in vertically oriented columns, through which to the region of the vessel wall (8) it can be projected having a shape of a strip (7). At that each vertically oriented column of light sources through the control unit can be adjusted depending upon the detected characteristics of the vessel surface (2) so that from the vertically oriented columns to the region of the vessel wall (8) the light pattern can be projected, which can be variably controlled depending on the properties of the surface.
EFFECT: invention enables to recognise the signs on the vessel using simple means.
16 cl, 14 dwg
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