INTER-ROW SUPPLEMENTARY LIGHTING SYSTEM FOR GREENHOUSE PLANTS Russian patent published in 2015 - IPC A01G7/04 A01G9/14 F21S19/00 

FIELD: agriculture.

SUBSTANCE: the system comprises a linear illuminator equipped with a set of at least two replaceable light-converting elements 5, by means of mounting the illuminator over the greenhouse plants and means for varying the illuminator position in height and angle of slope. The illuminator comprises a bearing housing 3 made in the form of elongated profiled part from a thermally conductive material having side walls connected with the base and provided with end caps; at least one printed circuit board 2 with at least one light emitting diode 1 with an emission maximum in the range of 430-470 nm, placed on the base of the housing and provided with a terminal for connection to the supply voltage. The housing is provided with an opening for the said terminals. The reflector 4 is extended part with the sidewalls and the base. The reflector and the end caps are made of a material or coated with a material having diffuse reflectance of 0.95-0.99. The reflector has a cross-sectional shape of a trapezoid and is mounted in the housing with its base on a printed circuit board with LEDs. The base of the reflector 4 is provided with slots to accommodate the LEDs 1. The illuminator comprises the means for sealing the inner space of the illuminator and means for fastening in the housing of the light-converting element 5, the end cap, the board with LEDs, the reflector. The light-converting elements are mounted in the housing at a distance from the diodes and are formed of an optically transparent material having a layer coated on its inner and/or outer surface, containing the dispersed particles with fluorescence peak maxima in the wavelength range of 600-680 nm and a half-width in the range of 50-180 nm. The light-converting elements 5 are made with different fluorescence peak maxima.

EFFECT: increase in the yields of greenhouse crops while reducing power consumption of the system, increased manufacturability of the illuminator, ease of its assembly and operation with the possibility of replacement of the removable parts of the illuminator, particularly the board with LEDs, the light-converting plate.

26 cl, 5 dwg