Light sources adapted to spectral sensitivity of plant
A method of stimulating plant growth in a controlled environment that includes providing a lighting assembly having a network of lighting elements such as light emitting diodes (LEDs) that provide light at a color tailored for an individual plant. The lighting assembly is positioned adjacent a plant such that the light produced is received by the plant. The lighting assembly additionally has a control assembly that includes driving circuitry that modulates the lighting elements to controllably provide predetermined periods of light and dark to stimulate continuous growth of the plant.
1. A method of stimulating plant growth in a controlled environment comprising:
providing a cylindrical body having at least one plant disposed therein;
placing a network of lighting elements that produce light at a predetermined wavelength arcuately around the periphery of the cylindrical body adjacent to the plant in order to provide light to the at least one plant; and
rotating the cylindrical body at a predetermined speed relative to the lighting elements to controllably provide predetermined periods of light and dark to stimulate continuous growth of the plant.
2. The method of claim 1 wherein the network of lighting elements includes light emitting diodes (LEDs).
3. The method of claim 1 wherein the predetermined wavelength of the light is in a range including and between 350 nanometers (nm) to 500 nm.
4. The method of claim 3 wherein the network of lighting elements includes a second network of lighting elements that produce light at a predetermined wavelength that are LEDs in series with the light emitting diodes.
5. The method of claim 4 wherein the predetermined wavelength of the second network of lighting elements is in a range between 600 nm and 750 nm.
6. The method of claim 1 wherein the predetermined wavelength of the light is in a range including and between 600 nm and 750 nm.
7. The method of claim 1 wherein the predetermined periods of light are in a range between zero and 30 minutes and the predetermined periods of dark are in a range between zero and 30 minutes.
8. The method of claim 1 where in the network of lighting elements arcuately surround 180 degrees of the cylindrical body.
9. The method of claim 1 where in the network of lighting elements arcuately surround 90 degrees of the cylindrical body.
10. The method of claim 1 wherein the body controllably presents a shield between the lighting elements and the at least one plant to provide the predetermined period of dark.