FIELD: lighting engineering.
SUBSTANCE: invention relates to lighting engineering. Light-emitting diode electric lamp (10, 110, 210) comprises translucent envelope (18, 118, 218), surrounding diffusing optical structure (50, 150, 250), multiple light-emitting diodes (30a-d, 230), light flux of which is directed to diffusing optical structure (50, 150, 250), which crosses and diffuses light flux, and multiple narrow-beam optical components (32a-d, 132a-d, 232). Each of narrow-beam optical components (32a-d, 132a-d, 232) adjoins corresponding light-emitting diode for focusing and direction of light flux from light-emitting diode to diffusing optical structure. Design (40, 140, 240a, 240b) of mounting supports diffusing optical structure and shifts diffusing optical structure of light-emitting diodes.
EFFECT: improved characteristics of light distribution, possibility to controlling thermal conditions and high output power.
15 cl, 4 dwg
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