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LED lamp filament

An LED filament and light bulb technology, applied in the field of lighting, can solve the problems of uneven light output and light distribution, and achieve the effects of uniform light output, no dead angle lighting, and solving the problems of uneven light output and light distribution.

Inactive Publication Date: 2016-10-12
SHANGHAI DANGOO ELECTRONICS TARDING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above technical problems, the present invention aims to provide a flexible LED filament, which can solve the problems of uneven light output and light distribution by using special flexible light strips arranged in special shapes

Method used

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Embodiment Construction

[0027] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. Of course, the present invention can also have other embodiments besides these detailed descriptions.

[0028] The LED filament of the present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0029] The LED filament of the present invention includes a flexible circuit board 10, preferably a PCB (Printed circuit board, printed circuit board) circuit board; several chips are evenly distributed on the surface of the PCB circuit board 10 provided with conductive circuits; and fluorescent powder , coated on the chip surface.

[0030] Wherein, the chip can be an SMD (Surface Mounted Device, surface mount device) chip, and phosphor powder is coated on the surface of the SMD (surface mount chip); or the chip can be a flip chip, and phosphor powder is coated on the surface o...

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Abstract

The invention relates to the technical field of illumination, in particular to an LED lamp filament arranged in a bulb. The LED lamp filament comprises a flexible circuit board and a plurality of chips, wherein the chips are distributed on the flexible circuit board, and each chip is coated with fluorescent powder and drives the fluorescent powder to illuminate. The specially manufactured flexible circuit board is used, the chips and the fluorescent powder are attached to the flexible circuit board to form the flexible LED lamp filament, and the manufactured LED lamp filament can be arranged in any special shape in the bulb. The problems of non-uniform outlet light and light distribution of the LED lamp filament are solved, the manufactured LED lamp filament can realize 360-dgree illumination without a dead angle, and the outlet light is uniform.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to an LED filament. Background technique [0002] With the continuous growth of the global population and the continuous development of the economy, the problems of energy shortage and environmental pollution have become more and more prominent, and the pressure on global energy conservation and environmental protection has continued to increase. LED (light-emitting diode, light-emitting diode) has been introduced into the field of lighting applications as a revolutionary technological innovation. LED lighting products have the advantages of energy saving, environmental protection, long life and low heat generation. More and more LED filament lamps are gradually replacing traditional incandescent lamps and other lighting products. [0003] However, the LED filaments used in the existing LED filament lamps on the market are often non-flexible LED filament strips. The processing ste...

Claims

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Application Information

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IPC IPC(8): F21K9/20F21Y115/10F21Y103/10
Inventor 郑君韬
Owner SHANGHAI DANGOO ELECTRONICS TARDING