Loading patent…
AssigneesNEC Lighting, Ltd., Sumitomo Metal Mining Co., Ltd.
InventorsToshikazu Sugimura, Hitoshi Hata, Shinobu Sawayama, Isao Kawanishi, Tatsuya Takahashi
Estimating the term…
There is provided a cold cathode fluorescent lamp that has excellent sputtering resistance and long life, even if high tube current is applied, and can be easily manufactured at low cost. In a cold cathode fluorescent lamp comprising a transparent tube having a fluorescent layer provided on an inner wall surface, containing a rare gas and mercury inside, and having both ends enclosed by sealing members, electrodes provided near both ends inside the transparent tube, and lead wires connected to the electrodes and provided through the sealing members, the electrode contains nickel as a main component and contains cerium metal or cerium oxide.
A cold cathode fluorescent lamp comprising a transparent tube having a fluorescent layer provided on an inner wall surface, containing a rare gas and mercury inside, and having both ends enclosed by sealing members, electrodes provided near both ends inside the transparent tube, and lead wires connected to the electrodes and provided through the sealing members, characterized in that the electrode contains nickel as a main component and contains cerium metal in the range of 0.11% by mass or more and 1.35% by mass or less.
(canceled)
A cold cathode fluorescent lamp comprising a transparent tube having a fluorescent layer provided on an inner wall surface, containing a rare gas and mercury inside, and having both ends enclosed by sealing members, electrodes provided near both ends inside the transparent tube, and lead wires connected to the electrodes and provided through the sealing members, characterized in that the electrode contains nickel as a main component and contains cerium oxide in the range of 0.18% by mass or more and 1.61% by mass or less.
(canceled)
Dependencies are inferred from the claim text.