| 摘要 |
PURPOSE: An artificial sunlight system for growing plants is provided to use a metal halide lamp and a halogen lamp with the longer lifetime and the less power consumption compare to an incandescent lamp or a fluorescent lamp. CONSTITUTION: An artificial sunlight system for growing plants uses a natural light source of an optical cable, a halogen light source, a metal halide light source, and an LED light source. The light sources pass through a wavelength selective coating lens before being radiated to the plants. The wavelength selective coating lens includes a metal halide lamp and a halogen lamp capable of producing enough light with the small amount of power. |
