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LED light bulb having filament with lighting face of LED chip located in the lower surface of top layer

專利號
US10868225B2
公開日期
2020-12-15
申請人
JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD(CN Jiaxing)
發(fā)明人
Tao Jiang; Weihong Xu; Yukihiro Saito; Hayato Unagike; Aiming Xiong; Junfeng Xu; Yiching Chen
IPC分類
H01L33/50; H01L33/62; F21K9/23; H01L25/07; F21K9/237; H01L25/075
技術(shù)領(lǐng)域
led,filament,in,polyimide,quadrant,symmetric,light,420a,bulb,diamine
地域: Jiaxing

摘要

An LED light bulb, comprising of: a lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing, the stem comprises a stand extending to the center of the lamp housing; a single LED filament, disposed in the lamp housing, the LED filament comprising: a light conversion layer, coated on at least two sides of the LED chip and the conductive electrodes, and a portion of each of the conductive electrodes is not coated with the light conversion layer, the light conversion layer has at least one top layer and one base layer, the top layer and the base layer are disposed on the opposing surface of the LED chip, wherein the light emitting surface of the LED chips overlaps with the center of the top layer; and two conductive supports, respectively connected with the stem and the LED filament.

說明書

The meaning of the term “a single LED filament” and “a single strip LED filament” as used in the present invention is mainly composed of the aforementioned conductive section, the LED section, the connection between thereof, the light conversion layer (including the consecutive top layer or the bottom layer, with continuous formation to cover or support all the components), and two conductive electrodes electrically connected to the conductive brackets of the LED light bulb disposing at both ends of the LED filament, which is the single LED filament structure referred to in the present invention.

The various embodiments of the present invention described above may be arbitrarily combined and transformed without being mutually exclusive, and are not limited to a specific embodiment. For example, some features as described in the embodiment shown in FIG. C although not described in the embodiment shown in FIG. A, those features may be included in the embodiment of FIG. A. That is, those skilled in the art can applies some features of the FIG. A to the embodiment shown in the FIG. C without additional creativity. Or alternatively, although the invention has illustrated various creation schemes by taking the LED light bulb as an example, it is obvious that these designs can be applied to other shapes or types of light bulb without additional creativity, such as LED candle bulbs, and the like.

The invention has been described above in terms of the embodiments, and it should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be within the scope of the present invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

權(quán)利要求

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