COMBINED IRRADIATION SYSTEM FOR MULTI-TIER PHYTOPLANT Russian patent published in 2020 - IPC A01G9/20 A01G9/22 A01G31/00 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural equipment, namely to lighting systems intended for use in plant growing of protected soil using light culture technology. Combined irradiation system for multi-tier phytoplant in the form of at least one long triangular frame, including phytoirradiators placed above multi-tier phytoplant, and phytoirradiators placed in inner cavity of triangular frame, characterized in that phytoirradiators located in the inner cavity of the triangular frame are made in the form of extended light-emitting diode radiation sources with content of radiation fraction in the blue range in the spectrum of photosynthetically active radiation Δλ=430–470 nm, end faces of triangular frame are equipped with reflecting screens with sputtered mirror aluminum layer with reflection coefficient ρ≥70 %. Phytoirradiators placed above multi-tier phytoplant, are selected from: irradiators with sodium lamps of high pressure, light-emitting diode irradiators. Phytoirradiators in the irradiation system are established on condition that the ratio of exposure of the outer surface of cenosis E₁ to the exposure of the inner surface of cenosis E₂ within E₁:E₂=2.0÷3.5 is provided.

EFFECT: higher illumination of plants with reduced power consumption in conditions of light culture of plants in greenhouse, reduced loss of light energy.

3 cl, 4 dwg, 1 ex