| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electrode for cold cathode discharge tube which is sealed with a shape hardly damaged, while making the space small that does not contribute to luminescence. <P>SOLUTION: This is provided an electrode 2 for cold cathode discharge tube which is directly sealed at each aperture end of a glass bulb 5 that is a constituent element of a cold cathode discharge tube 1, and has a bottomed tubular part 3 inserted into each aperture end and an introductory metal wire 4 extending from the bottom 3b of the bottomed tubular part 3; the outer face of the bottom 3b is formed in a curved surface and is formed to be smaller in diameter as it goes to the deepest part, and formed thick as it goes to the deepest part. Furthermore, the introductory metal wire 4 is formed by integrating coaxially a first metal wire 4a on the bottomed tubular part 3 side and a second metal wire 4b on the tip side formed in smaller diameter than the first metal wire 4a. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
