FIELD: lighting.
SUBSTANCE: invention relates to light-emitting device containing material that converts wavelength, and to production of such light-emitting device. Light-emitting device comprising: light-generating unit comprising at least one solid-state light source; at least two sealed transparent tubes, each of which comprises wavelength converting material, located adjacent to each other so that there is an elongated cavity between the transparent tubes. Light-generating unit is configured to emit light into the elongated cavity.
EFFECT: objective of invention is to improve light-emitting device and overcome the above disadvantages.
15 cl, 4 dwg
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