초록 ▼

An apparatus used to deliver light from overhead to stimulate plant growth in a controlled environment. The distance between tops of the plants and the lights can be adjusted to correlate with plant growth by a motorized assembly for raising and lowering a bar suspended from an upper support and upo

An apparatus used to deliver light from overhead to stimulate plant growth in a controlled environment. The distance between tops of the plants and the lights can be adjusted to correlate with plant growth by a motorized assembly for raising and lowering a bar suspended from an upper support and upon which are mounted growth lights. Horizontal sway of the bar upon which the growth lights are mounted is minimized by a guiding structure for one end of the bar. When florescent growth lights are used, bulk and heat produced by their ballasts are eliminated by locating all ballasts remotely from the apparatus.

대표청구항 ▼

[ What is claimed is:] [1.]1. Overhead lighting apparatus located in a room in a building structure for stimulating plant growth with means for vertical adjustment according to plant height comprising:a) a light assembly having:1) an elongated bar substantially horizontally aligned; and2) a pluralit

[ What is claimed is:] [1.]1. Overhead lighting apparatus located in a room in a building structure for stimulating plant growth with means for vertical adjustment according to plant height comprising:a) a light assembly having:1) an elongated bar substantially horizontally aligned; and2) a plurality of growth lights mounted on said elongated bar;b) an upper support structure not integral to said building structure and having means for supporting said light assembly in a position above said plants and for vertically adjusting the position of said light assembly;c) said upper support structure further comprising:1) a support beam supported in an elevated position above the floor of said room by vertically oriented side members;2) a winding shaft;3) means to rotatably attach and support said winding shaft to said support beam; and4) a plurality of cables with means to attach one end of each of said plurality of cables to said winding shaft and the other end to said elongated bar; andd) means for securing said upper support structure in a position above said light assembly; ande) said means for adjusting the position of said bar further comprising a motor operatively connected to said winding shaft, and fixedly attached to said support beam.