Full-angle light-emitting LED lamp filament

An LED filament, all-angle technology, applied in the direction of light source, light source fixing, semiconductor devices of light-emitting elements, etc., can solve the problem of uneven light output of LED filament, and achieve the goal of protecting human eyesight, reducing chip junction temperature, and improving heat dissipation characteristics. Effect

Inactive Publication Date: 2017-07-14
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above problems, the present invention provides a full-angle light-emitting LED filament, which solves the technical problem of uneven light-emitting of the existing LED filament

Method used

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  • Full-angle light-emitting LED lamp filament
  • Full-angle light-emitting LED lamp filament
  • Full-angle light-emitting LED lamp filament

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Embodiment Construction

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0030] The present invention provides a full-angle light-emitting LED filament, which is arranged in a bulb. Specifically, the full-angle light-emitting LED filament includes: a filament substrate, a plurality of LED chips, and phosphors coated on the surface of the LED chips, wherein the filament substrate It is in the shape of a cylindrical wall or a circular frustum, and a plurality of LED chips are spirally distributed on the outer surface of the filament substrate.

[0031] C...

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Abstract

The invention provides a full-angle light-emitting LED lamp filament. The full-angle light-emitting LED lamp filament comprises a lamp filament base plate, a plurality of LED chips and fluorescent powder coating the surfaces of the LED chips. The lamp filament base plate is in a cylindrical wall shape or a circular truncated cone wall shape, and the multiple LED chips are distributed on the outer side surface of the lamp filament base plate in a spiral shape. On this account the problem that light perception is discontinuous when a point-type encapsulating method is applied is solved, meanwhile the defect of light distribution design when linear sealing is applied is overcome, and in this way, four-pi-angle light emitting of the LED lamp filament is achieved; homogeneity of light field spatial distribution of the LED lamp filament is greatly improved, multi-angle and multiple-level three-dimensional light emitting is achieved, and glaring does not occur on people, so that the purpose for protecting human eye eyesight is achieved.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to an all-angle light-emitting LED filament. Background technique [0002] As a new light source, LED (Light Emitting Diode) has been widely used in various lighting facilities because of its advantages of energy saving and long life. White LED is known as the fourth-generation lighting source to replace fluorescent lamps and incandescent lamps. It changes the principle of tungsten filament luminescence of incandescent lamps and the three-primary toner luminescence of fluorescent lamps. Advantages of power consumption and environmental protection. As a new generation of green light source and lighting technology, LED lights have developed rapidly in the global lighting industry in recent years, and their products involve backlights, signal lights, landscape lighting, general civil lighting and other fields. [0003] At present, the commonly used filament holders on the market are gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/20F21V19/00F21V29/503F21Y115/10F21Y107/30
CPCF21V29/503F21V19/002
Inventor 佘君于天宝
Owner NANCHANG UNIV
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