HOTHOUSE Russian patent published in 1994 - IPC

FIELD: agriculture. SUBSTANCE: hothouse has transparent guard structures and main louver-type screen made up of set of strip members. Main screen of hothouse is transparent to light and has three groups of strip members. Members of first group are made of material featuring maximum value of transmittance of incident luminous flux in 380-500 nm range, second group members are made of material with maximum transmittance in 500-600 nm range and those of third group, in 600-700 nm range. Each group of strip members is coupled by common rod with its drive. Hothouse has also additional louver-type screen whose strips are coated with light-reflecting material, with light-reflecting surfaces facing inwards. EFFECT: enlarged operating capabilities. 3 cl, 4 dwg