FIELD: electricity.
SUBSTANCE: invention relates to a LED light source made with the ability to retrofit the lamp that uses the light source with the filament. The light source comprises a light guide in which light is entered from one or more LEDs of the light head located at one end of the light guide, and a reflector having a reflecting surface, located on another end of the light guide and facing the light guide allowing reflection of the light incident on the reflecting surface. According to the present invention, the reflector comprises at least one transmissive part located so that at least part of the light incident on at least one transmissive part is transmitted through the reflector, for example, the through opening extending along the axis, providing the light intensity of the light source almost independent from the viewing angle.
EFFECT: increased efficiency of lighting.
12 cl, 9 dwg
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Authors
Dates
2014-08-20—Published
2009-11-30—Filed