Patent ID: 9653668
Date: 2017-05-16
CPC Classifications: F21K,F21V,H01L

Claim:
1. A LED filament comprising a carrier, a plurality of LED chips disposed on the carrier, and a one-piece conductive lead fixedly connected to the carrier; wherein the one-piece conductive lead is electrically connected to the LED chips to supply power to the LED chips, and the one-piece conductive lead comprises a lead head portion, a lead tail portion and a lead neck portion connecting the lead head portion with the lead tail portion; the lead tail portion is for electrically connecting with a wire in a bulb for lighting and the wire being as a cathode electrode or an anode electrode of the bulb; the lead neck portion is formed with a through hole in a middle portion thereof such that the lead neck portion has a reduced solid body width less than a maximum solid body width of the lead head portion.