| 摘要 |
PROBLEM TO BE SOLVED: To provide a plant growth light-emitting diode.SOLUTION: A plant growth light-emitting diode includes: a blue LED chip having a wavelength of 440-460 nm; a phosphor powder composition including at least two differently colored phosphor powders, one of the powders being red phosphor powder; and a silicon adhesive to be mixed to the phosphor powder composition, wherein a light spectrum applied onto the blue LED chip and excited is close to a plant photosynthesis curve. The thus-excited light spectrum is made closer to the plant photosynthesis curve, whereby the best plant growth effect can be attained. |
