FIELD: lighting; electrical engineering.
SUBSTANCE: invention relates to lighting articles and is intended for use in light-emitting diode devices with remote extended luminescent screen. Device comprises a LED excitation radiation source (1) and a luminescent screen, which consists of two parts. Luminescent screen consists of a main screen in form of cylindrical tube (2), on inner surface of which there is a yellow-green phosphor, and additional screen (3) made in form of a ring arranged inside main screen on surface of which there is a red luminophor. Exciting radiation source (1) and additional screen (3) are installed with possibility of displacement relative to main screen.
EFFECT: technical result is increased light efficiency and enabling control of emission spectrum.
1 cl, 2 dwg
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