LIGHTING DEVICE, CAPABLE SUPPORT OF GARDEN LIGHTING, AND METHOD OF LIGHTING IN GARDENING

摘要

FIELD: lighting.;SUBSTANCE: invention provides an illumination device (100) with light emitting diodes (10) configured to generate light (11) having a wavelength selected from a range of 400-475 nm, wherein the lighting device (100) comprises at least two light emitting portions (100a, 100b). The first light emitting portion (100a) comprises a first subset (10a) of the light emitting diodes (10) and is configured to provide a first illumination (111a) having a first spectral light distribution substantially in the range of 400-475 nm. The second light emitting portion (100b) comprises a second subset (10b) of the light emitting diodes (10) and comprises a light converting element (20) adapted to convert at least a portion of the light (11) generated in the second subset (10b) of the plurality of light emitting diodes (10) to the second illumination (111b) with a second spectral light distribution substantially in the range of 625-800 nm. The first subset (10a) of the plurality of light emitting diodes (10) and the second subset (10b) of the plurality of light emitting diodes (10) are independently regulated.;EFFECT: invention will stimulate the growth and development of plants, which will increase crop yields.;15 cl, 13 dwg