Patent attributes
The present invention relates to a filament (100) comprising a light transmissive tubular member (110), a light emitting assembly (106) arranged within the tubular member (110), a wavelength converter (112) arranged at a surface of the tubular member (110) and configured to convert light from a first wavelength range to a second wavelength range. The light emitting assembly (106) comprises a plurality of solid state light sources (102) and interconnecting elements (104) being arranged in an alternating manner to form a string (106) of connected solid state light sources (102) and interconnecting elements (104). The interconnecting elements are portions of a lead frame (104) and at least a part of the plurality of solid state light sources (102) are arranged on opposite sides of the lead frame (104) in an alternating manner. The inventive filament (100) is simple, easy and cheap to manufacture, thus providing a good replacement and approximation for an incandescent wire.
