FIELD: physics.
SUBSTANCE: invention relates to GLS-look-alike LED light source (100) comprising two different types of LEDs (21, 22), preferably LEDs emitting with a near UV spectrum and a blue or white spectrum, respectively. The light source (100) also preferably comprises a transparent bulb (40) with a shape similar to an incandescent lamp that is coated by a luminescent layer (30) to achieve a white lamp spectrum. The red luminescent layer contains a composition which emits in the 600-800 nm range.
EFFECT: lamp provides a full emission spectrum and high uniformity of luminescence of white light.
13 cl, 6 dwg
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Authors
Dates
2014-01-10—Published
2009-02-18—Filed