FIELD: optics.
SUBSTANCE: invention relates to means of reducing translucency of lattice barriers. Device is made in the form of a housing, inside of which there is a coil with a cloth, which is equipped with a mechanism for automatic winding of the web into a roll. Inner edge of web is fixed on coil. Outer edge of the web is brought out through the slot in the body to the outside and has an edge plate with attachment points attached to it to the screening grid. On the device body there fixed are fasteners to the guard grid. Edges of web have parts for mutual attachment of webs of similar devices.
EFFECT: technical result is reduced translucency of ready lattice barriers.
8 cl, 5 dwg
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