LUMINARY Russian patent published in 2018 - IPC F21Y113/13 A01G7/04 

FIELD: lighting engineering.

SUBSTANCE: invention relates to lighting devices, providing the lighting with light, the most appropriate spectrum of sunlight, due to use of light-emitting diodes. In the fixture containing a set of known LEDs with different emission spectra lying in the frequency range of about 400–800 nm, equipped with power drivers, the invention uses LEDs, whose emission spectra are in the range of 400–675 nm, the spectra of LEDs used overlap each other in different spectral regions of the range, preferably at the level of 0.4–0.6 of the maximum amplitude at the central frequency of the radiation, using eight types of light-emitting diodes of different spectra with power from 0.1 to 200 W and more each, and the emitted spectrum includes the emission spectra of such LEDs as Warm White, Purple, Royal Blue, Blue, Light Blue, Green, Deep Red and Vegetable light, with a possible deviation from the center frequency of ±15 nm, the drivers of said LEDs being configured to supply power of such a value that the level of the light flux from the corresponding LEDs is equal to 1.25, 0.97, 0.24, 0.87, 1.02, 1.11 and 0.46 from the level of the light flux emitted by the LED Vegetable light, with a possible deviation of these values of energy by ±30 %. In addition, the 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. In addition, these LEDs have the maximum radiation at frequencies respectively 587, 413, 437, 460, 490, 524, 664 and 650 nm.

EFFECT: invention provides the luminaire with a radiation spectrum corresponding to sunlight in the range of 400–675 nm.

3 cl, 6 dwg, 3 tbl