Lighting device
AssigneeLeedarson Lighting Co., Ltd.
InventorsLiangliang Cao, Xiaobo Chen
Life of this patent
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Abstract
A lighting device includes a bulb shell, a base portion, a light bar module, a core stem, a lamp cap and a driving piece. The light bar module is composed of a plurality of light bars. Each light bar houses a plurality of LED chips. Electrical connectors are set at the two ends of each light bar respectively. The core stem extends upwardly from the base portion and has an expansion portion at the top. The electrical connector of light bars is fixed to the expansion portion. The open end of the lamp cap is connected to the bottom of the bulb shell. The driving piece is placed in the lamp cap. The lighting device achieves a technical effect in which the lighting effect is uniform and the lighting angle is large.
Claims13
A lighting device, comprising:
- a bulb shell;
- a base portion, connecting to the bottom of the bulb shell and forming a cavity with the bulb shell;
- a light bar module, placed in the cavity, the light bar module composed of a plurality of light bars, each light bar housing a plurality of LED chips, and there being an electrical connector at the two ends of each light bar, respectively;
- a core stem, extending upwardly from the base portion, and providing with an expansion portion at the top of the core stem, the electrical connector of one end of the plurality of light bars is fixed to the expansion portion;
- a lamp cap, the open end of the lamp camp connecting to the base portion;
- and
- a driving piece, placed in the lamp cap and electrically connected to the light bar module to provide electric power required for the plurality of light bars to illuminate,
- wherein one ends of the plurality of light bars form a top polygon, the other ends of the plurality of light bars form a bottom polygon, the main lighting directions of the plurality of light bars are adjusted by arranging the top polygon of the plurality of light bars being shifted from the bottom polygon by an angle along a co-vertical axis of the top polygon and the bottom polygon for preventing dark zone on the shell.
Dependencies are inferred from the claim text.