HOTHOUSE Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: hothouse for hydroponic plant growing with artificial lighting has fencing 1 and frameworks of hydroponics installations including collar beams 3, brackets 9 joined with the collar bars, and light sources 7. Trays for growing plants are mounted on brackets. The collar beams are circumference arcs. Ends of these arcs are joined together, and other ends are joined with ends of framework base 6. These ends are circumference arcs too. Trays 4 are base-mounted. Every two adjoining frameworks are positioned parallel with each other with a spacing between them 1.8-2.2 R (R collar beam circumference arc radius). The sources of light are mounted between the frameworks level with the upper ends of the collar beams equidistant from the neighboring frameworks. Inside the frameworks there are sources of light too, and they are spaced 0.8-1.2 R from a cylindrical surface passing through bases of each framework. EFFECT: more uniform lighting; more favorable plant growing conditions. 2 cl, 3 dwg