FILAMENT FOR LIGHTING DEVICE Russian patent published in 2019 - IPC F21K9/00 

Abstract RU 2677687 C2

FIELD: lighting.

SUBSTANCE: invention relates to a lighting device and to a method for manufacturing such a lighting device. Lighting device comprises a light source made in the form of a filament, comprising a light transmissive tubular member, a light-emitting unit placed in the tubular member, a wavelength converter placed on the surface of the tubular member and adapted to convert light from a first wavelength range to a second wavelength range. Light-emitting unit comprises a plurality of solid-state light sources (102) of light and interconnecting elements (104), arranged in an alternating manner to form a string of connected solid state light sources (102) and interconnecting elements (104). Interconnecting elements are portions of lead frame (104) and at least a part of the plurality of solid state light sources (102) are arranged on opposite sides of lead frame (104) in an alternating manner.

EFFECT: providing a lighting device.

15 cl, 20 dwg

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RU 2 677 687 C2

Authors

Vekamp Jokhannes Vilkhelmus

Dates

2019-01-21Published

2015-03-05Filed