Fluorescent Lamp

The disclosed subject matter includes a fluorescent lamp and particularly a cold cathode fluorescent lamp that can be employed as a light source for a LCD backlight unit for a television, a computer, a display, and the like. The fluorescent lamp can include a couple of electrode units located opposite to each other at each end of a tube, a couple of welding beads sealing both the tube and the couple of electrode units, and a filler gas located in the tube. Each of the electrode units can include an emitter electrode that is configured with a crystalline silicon carbide material having an electrical conductivity and including a concave portion formed thereon. The electrode units can prevent blackening on an inner surface of the tube by avoiding the occurrence of spattering. Thus, the fluorescent lamp using the electrode units can enjoy a long life, high reliability, easy manufacture, and the like.

Filament Electrode and Fluorescent Lamp

The disclosed subject matter includes a filament electrode that can include a filament coil connected with a pair of lead wires with confidence. It is possible for a fluorescent lamp using the filament electrode to emit light with a wider range while located in a thin tube. The filament electrode can include a pair of connecting pipes, a pair of lead wires located parallel to each other, and a filament coil including two connecting parts. Each of the two connecting parts of the filament coil can attach to respective ends of the pair of lead wires via the pair of connecting pipes via pressure bonding so as not to contact the connecting parts of the filament coil with the ends of the pair of lead wires located in the pair of connecting pipes and so as to align the structures. Thus, the filament electrode can be used even in a thin glass or quartz tube and can provide an effective heat-shield operation.

Fluorescent lamp

The disclosed subject matter includes a fluorescent lamp and particularly a cold cathode fluorescent lamp that can be employed as a light source for a LCD backlight unit for a television, a computer, a display, and the like. The fluorescent lamp can include a couple of electrode units located opposite to each other at each end of a tube, a couple of welding beads sealing both the tube and the couple of electrode units, and a filler gas located in the tube. Each of the electrode units can include an emitter electrode that is configured with a crystalline silicon semiconductor material having an electrical conductivity or configured with other semiconductor materials, and can include a concave portion formed thereon. The electrode units can prevent blackening on an inner surface of the tube by avoiding the occurrence of spattering. Thus, the fluorescent lamp using the electrode units can enjoy a long life, high reliability, easy manufacture, and the like.

Fluorescent lamp

The disclosed subject matter includes a fluorescent lamp and particularly a cold cathode fluorescent lamp that can be employed as a light source for a LCD backlight unit for a television, a computer, a display, and the like. The fluorescent lamp can include a couple of electrode units located opposite to each other at each end of a tube, a couple of welding beads sealing both the tube and the couple of electrode units, and a filler gas located in the tube. Each of the electrode units can include an emitter electrode that is configured with a crystalline silicon carbide material having an electrical conductivity and including a concave portion formed thereon. The electrode units can prevent blackening on an inner surface of the tube by avoiding the occurrence of spattering. Thus, the fluorescent lamp using the electrode units can enjoy a long life, high reliability, easy manufacture, and the like.

Filament electrode and fluorescent lamp

The disclosed subject matter includes a filament electrode that can include a filament coil connected with a pair of lead wires with confidence. It is possible for a fluorescent lamp using the filament electrode to emit light with a wider range while located in a thin tube. The filament electrode can include a pair of connecting pipes, a pair of lead wires located parallel to each other, and a filament coil including two connecting parts. Each of the two connecting parts of the filament coil can attach to respective ends of the pair of lead wires via the pair of connecting pipes via pressure bonding so as not to contact the connecting parts of the filament coil with the ends of the pair of lead wires located in the pair of connecting pipes and so as to align the structures. Thus, the filament electrode can be used even in a thin glass or quartz tube and can provide an effective heat-shield operation.

表示灯型蛍光ランプ

(57)【要約】 【課題】 従来のこの種の表示灯型蛍光ランプにおいて は、発光効率が低く照明用としては輝度不足であること と、寿命の後半における輝度低下が著しいことが問題点 とされていた。 【解決手段】 本発明により、陽極４を略長方形の板状 とし、その板厚ｔを熱陰極３の長さの１／１６〜３／１ ６とし、かつ、熱陰極３とこの熱陰極３に対峙する陽極 の１辺４ａとが、平行な平面内で一方が他方に対し３０ °〜６０°の範囲で回転した状態で設置されてている表 示灯型蛍光ランプ１としたことで、熱陰極３の長さに対 する陽極４の板厚ｔを適正化し、熱陰極３に生じる陰極 スポットからの熱電子の放出を増加させると共に、その 一辺４ａを熱陰極３と平行に近い状態として配置するこ とで、陰極スポットの移動により放電距離に変化を生じ ることがが少ないものとして、課題を解決するものであ る。

Preform for fluorescent lamp, fluorescent lamp prepared by the same, and method for preparing the fluorescent lamp

Preform for fluorescent lamp, fluorescent lamp prepared by the same, and method for preparing the fluorescent lamp

There are provided a preform for a fluorescent lamp comprising a bulb and a stem provided with a filament and a discharge electrode and a fluorescent lamp prepared by the preform without any exhaust pipe for use as an indicating lamp, the fluorescent lamp being sealed after exhausting inside air and charging inert gas and mercury through an appropriate space formed between the bulb and the stem inserted into the bulb. Thus, even when liquefied mercury liquefied is present in a discharge chamber, it receives a large amount of heat from the filament applied voltage and is easily and quickly evaporated, whereby the characteristics of the lamp become stable quickly after turning on the lamp.

Fluorescent lamp

Fluorescent Lamp

The disclosed subject matter includes a fluorescent lamp and particularly a cold cathode fluorescent lamp that can be employed as a light source for a LCD backlight unit for a television, a computer, a display, and the like. The fluorescent lamp can include a couple of electrode units located opposite to each other at each end of a tube, a couple of welding beads sealing both the tube and the couple of electrode units, and a filler gas located in the tube. Each of the electrode units can include an emitter electrode that is configured with a crystalline silicon semiconductor material having an electrical conductivity or configured with other semiconductor materials, and can include a concave portion formed thereon. The electrode units can prevent blackening on an inner surface of the tube by avoiding the occurrence of spattering. Thus, the fluorescent lamp using the electrode units can enjoy a long life, high reliability, easy manufacture, and the like.

蛍光ランプ及び蛍光ランプの製造方法

(57)【要約】 【課題】 従来の蛍光ランプにおいては、冬場等の低温 時に用いる際、蛍光ランプ表面にニクロム線等のヒータ ー線を巻いて明るさの低下を防止していたため、ヒータ ー線自体が蛍光ランプの発光を遮蔽してしまうととも に、ヒーター線の取付けに手間を要するという問題点が あった。 【解決手段】 本発明により、ヒーター線として酸化錫 及び酸化アンチモン又は、酸化錫及び酸化インジウムを 含む溶液を焼成した透明膜９を具備しているため、蛍光 ランプ１、２１の発光を遮蔽することがなく、冬場等の 低温時においても明るさの低下を招くことがない。又、 透明膜９は塗布及び焼成という簡単な作業により形成で きるため歩留が上がり、これらにより課題を解決するも のとなる。

冷陰極蛍光ランプおよびその製造方法

(57)【要約】 【課題】 従来の水銀を保持させる板状電極を採用した 冷陰極蛍光ランプでは、ランプ外径を２mm程度とすると 板状電極の面積も減じて水銀量も不足して寿命が短くな るなどの問題を生じ市場の要望に答えられない問題点を 生じていた。 【解決手段】 本発明により、タンタル若しくはタンタ ル合金でコイル状電極２を形成し、このコイル状電極２ を予めに真空加熱処理を行い吸着ガスの放出を行わせた 状態でガラス管４内への封止工程を行う冷陰極蛍光ラン プ１の製造方法としたことで、予めの真空加熱処理によ り封止後のガラス管４内に電極２を兼ねるゲッターが不 純ガスを持ち込むことを防止し、寿命の延長を可能とし た状態で現在市場で要望されている外径２mm程度の冷陰 極蛍光ランプ１の生産を可能として課題を解決するもの である。