CONTROLLED SPECTRUM RADIATION SOURCE

FIELD: optics; electrical engineering.SUBSTANCE: invention relates to optoelectronics, lighting, devices emitting in the visible, infrared and terahertz ranges, can be used for the development and production of x sources with a controlled spectrum of radiation in medicine, technology, transport, and everyday life. Source of radiation with a controlled spectrum is made in the form of a hollow cylindrical body, the inner surface of which is a cylindrical radiation reflector, and the window is a cylindrical lens. Inside the body, a light-emitting microchannel structure is formed with semiconductor micro- or nanopowders excited by LED radiation and luminescing in spaced spectral bands λ. Light-emitting microchannel structure is made in the form of one, or two, or more micro-channel cells-elements (MCE) in the form of identical cylinders attached to each other along a generatrix, to the ends of each of which are mechanically and optically connected by two LEDs: one, exciting - with radiation in the spectral band λ, another, complementary - with radiation in the spectral band λ. Spectral emission bands of all MCEs and their complementary LEDs do not coincide and for each of them are distributed in the ratio - λ