Patent ID: 8021206
Filing Date: 2011-09-20
Classification: G02F,H01J

Abstract:
1. A method of manufacturing a fluorescent lamp, the method comprising: forming an emissive glass tube having a first thickness, a first diameter, and both opened ends; forming first and second non-emissive glass tubes having a second diameter larger than the first diameter, a second thickness identical to the first thickness, and one opened end; joining both ends of the emissive glass tube to the first and second non-emissive glass tubes, respectively; and forming first and second electrodes on entire outer surfaces of the first and second non-emissive glass tubes, wherein the first and second electrodes have a cap shape and cover entire circumferences of two joints formed by joining the both ends of the emissive glass tube to the first and second non-emissive glass tubes, wherein the first and second non-emissive glass tubes are made of the same material as the emissive glass tube, wherein each of the first and second non-emissive glass has a opening portion corresponding to the both ends of the emissive glass tube, and wherein joining both ends of the emissive glass tube to the first and second non-emissive glass tubes performed using a gas torch or static electricity.