LUMINAIRE Russian patent published in 2018 - IPC A01G7/04 

FIELD: lighting equipment.

SUBSTANCE: invention relates to lighting devices, providing the illumination of plants with light, as much as possible corresponding to the spectrum of sunlight due to use of light-emitting diodes. Luminary contains a set of known light-emitting diodes with different emission spectra lying in the frequency range of about 400–800 nm, equipped with power drivers. LEDs are used whose emission spectra are in the range of 400–730 nm. Spectra of used LEDs overlap each other in different spectral regions of the range, preferably at a level of 0.4–0.6 of the maximum amplitude at the central frequency of the radiation. Nine types of light-emitting diodes of different spectrum are used, which provides the luminaire with a spectrum of radiation close to sunlight. Emitted spectrum includes the emission spectra of such LEDs as Warm White, Purple, Royal Blue, Blue, Light blue, Green, Deep Red, Infrared and Vegetable Light. Drivers of said LEDs are configured to supply power of such a value that the level of the light flux from the corresponding LEDs is equal 1.19; 0.95; 0.24; 0.85; 0.99; 1.08; 0.38 and 1.03 from the level of the light flux emitted by the LED Vegetable light. Type of the spectrum is formed by a set of the same type of LEDs, with the ability to generate the power of the light flux, the same for each individual type of spectrum. These LEDs have the maximum radiation at frequencies, respectively, 587, 413, 437, 460, 490, 524, 664, 720 and 650 nm.

EFFECT: use of the invention will provide the luminaire with a radiation spectrum corresponding to sunlight in the range of 400 to 730 nm.

3 cl, 6 dwg