JPS5923451A - Fluorescent lamp - Google Patents

Abstract

PURPOSE:To improve early reduction of the luminous flux caused by the discoloration of the inner tubes of a fluorescent tube, which is constituted by vertically installing a plural number of curved inner tubes so that they work as electric discharge paths, by forming the inner tubes by the use of glass containing no lead components and no sodium components. CONSTITUTION:A lamp part (A) is constituted of an outer tube 1, U-shaped inner tubes 2, a spacer 3 and a stem 4. A phosphor 5 is applied to the inner surfaces of the inner tubes 2, then sintered. The spacer 3 is provided with inner-tube insertion holes 7a-7f having parts 6 formed by spot facing. A connection hole 8 is provided between the insertion holes 7a and 7b, and a connection groove 9 is provided on the lower surface of the spacer 3, between the insertion holes 7d and 7c. Lead wires 11 are airtightly fitted into the stem 4, and electrodes 13 are attached to the ends of the lead wires 11. After assembling the inner tubes 2, the spacer 3 and the stem 4, they are sealed in the outer tube 1 before it is exhausted, and the outer tube 1 is charged with an electric dischrge gas. In such a lamp part (A), the inner tubes 2 are formed by the use of glass containing no lead components and no sodium components. As a result, any discoloration of the inner tubes 2 is prevented, and early reduction of the luminous flux can be improved.

Description

【発明の詳細な説明】 本発明は、外管とステムにより形成される放電空間内に
内管を収納し、該内管を放電路とするコンパクトサイズ
の螢光ラングに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compact fluorescent rung in which an inner tube is housed in a discharge space formed by an outer tube and a stem, and the inner tube serves as a discharge path.

第１＠はこの種の螢光ラングを示す斜視図で。The first @ is a perspective view showing this type of fluorescent rung.

ラング部Ａ、点灯装置部Ｂ、ねじ口金部Ｃより成り、第
２図は上記ラング部Ａの分解斜視図である。It consists of a rung part A, a lighting device part B, and a screw cap part C. FIG. 2 is an exploded perspective view of the rung part A.

ラング部人は外管１．Ｕ字状内管２．スペーサ８及びス
テム４から成り、内管２の内壁には螢光体５が塗布され
焼成されており、スペーサＢには内管２の両端を位置決
め固定するだめの座ぐり部６を有する６つの内管挿入孔
７ａ〜７ｆが設けられている。そして、６つの内管挿入
孔７ａ〜７ｆのうち互いに隣り合う挿入孔７ａ、ｙｂｔ
−ｔ、上下面が開口した連絡孔８で、また他方の隣り合
う挿入孔７ｄ。Lang club people are outer tube 1. U-shaped inner tube2. Consisting of a spacer 8 and a stem 4, the inner wall of the inner tube 2 is coated with a phosphor 5 and fired, and the spacer B has six counterbore portions 6 for positioning and fixing both ends of the inner tube 2. Inner tube insertion holes 7a to 7f are provided. Among the six inner tube insertion holes 7a to 7f, adjacent insertion holes 7a and ybt
-t, a communicating hole 8 with open upper and lower surfaces, and the other adjacent insertion hole 7d.

７Ｃｉｊ下面のみが開口した連絡溝９でそれぞれ連絡さ
れている。上記連絡孔８を設けるのＶｉ、外管１とステ
ム４とで形成される空間と、上記各内管２の放電空間を
共通にするためである。ｌＯはステム４上にスペーサ８
を固定するだめのスペーサ固定用封入線挿通溝で参る。7Cij are connected to each other by a communication groove 9 that is open only on the lower surface. The purpose of providing the communicating hole 8 is to make the space formed by the outer tube 1 and the stem 4 and the discharge space of each of the inner tubes 2 common. lO is spacer 8 on stem 4
There is an encapsulated wire insertion groove for fixing the spacer.

ステム４には４本のリード線■及び４本のスペーサ固定
用封入線校が封入されており、上記リード線Ｈの先端に
は電ＦＭ田が取付けられている。なお、　１４は排気管
である。The stem 4 has four lead wires (2) and four spacer fixing wires enclosed in the stem 4, and an electric FM field is attached to the tip of the lead wire (H). Note that 14 is an exhaust pipe.

次に組立について述べる。まず、各内管２の両凹口端を
内！挿入孔７＆〜７ｆの座ぐり部６に嵌め込んだ後、加
熱硬化型の耐熱性無機接着剤又はガラスフリットの如き
接着剤にてスペーサ８に気密的に固定する。この気密的
固定は、内管２外壁とスペーサ８の座ぐり部６との間に
生じるギャップを小さくしてやれば必ずしも気密性を必
要とするものではない。次に、このようにして内管２と
−１１１、Ｌ、たスペーサ８をステム４に％該ステム４
に設けた両市極相、ｔａ及びスペーサ固定用封入線比が
、スペーサ８に設けた内管挿入孔７ｃ　、　７ｆ及び封
入線挿通溝１０にそれぞれ対応するように配置する。ス
ペーサ８とステム４との固定は、スペーサ固定用封入Ｍ
１２をスペーサ８の上面内方向に折り曲げることにより
行なう。この工程により電極１１と各内管２が直列接続
され−りの放電路を形成するのである。このスペーサ８
のステム４への固定も、ギャップ°を小さくしてやれば
必ずしも気密性を必要とするものではない。そして、外
管↓の開口端とステム４の外周を気密封着した後、排気
管１４より通常の電極物質活性化処理、排気、放電用力
′ス封入を行なうことによりラング部人は完成する。Next, let's talk about assembly. First, insert the double concave end of each inner tube 2! After fitting into the counterbore 6 of the insertion holes 7 and 7f, it is airtightly fixed to the spacer 8 with an adhesive such as a heat-curable heat-resistant inorganic adhesive or glass frit. This airtight fixation does not necessarily require airtightness as long as the gap created between the outer wall of the inner tube 2 and the counterbore 6 of the spacer 8 is made small. Next, in this way, the inner tube 2 and the -111, L, spacer 8 are attached to the stem 4.
The spacer 8 is arranged so that the polar phase, ta, and the spacer fixing encapsulating line ratio provided in the spacer 8 correspond to the inner tube insertion holes 7c, 7f and the encapsulating line insertion groove 10 provided in the spacer 8, respectively. The spacer 8 and the stem 4 are fixed using a spacer fixing enclosure M.
This is done by bending 12 toward the inside of the upper surface of the spacer 8. Through this step, the electrode 11 and each inner tube 2 are connected in series to form a discharge path. This spacer 8
Fixing to the stem 4 does not necessarily require airtightness as long as the gap is made small. After the open end of the outer tube ↓ and the outer periphery of the stem 4 are hermetically sealed, the ordinary electrode material activation process, exhaust, and charging of discharge gas are carried out through the exhaust pipe 14, thereby completing the rung member.

而して、上記のような螢光ランデの内管２に鉛ガラス（
８ｉ０．＋５０〜６０５Ｍ、ＮすＯ，に雪０：ｌＯ〜１
３％。Therefore, lead glass (
8i0. +50~605M, NO, snow 0:lO~1
3%.

ＰｂＯ＋ｆｆｉ〜加％、その他）を使用した場合、比較
的短期間に内管２が黒・茶色に着色し、ガラスの透過率
が低下し、そのためにＴｌのように短期間に発光束が低
下するという欠点があった。すなわち、ｔ６Ｗ入力を与
えた場合の発光束の時間変化を示すと。When PbO+ffi~%, etc.) is used, the inner tube 2 becomes colored black/brown in a relatively short period of time, the transmittance of the glass decreases, and the luminous flux decreases in a short period of time like Tl. There was a drawback. In other words, the time change in luminous flux when t6W input is applied is shown below.

という形で急速に光束が低下する。同時に、内管８のガ
ラスの透過率を測定すると、 という形で急速に低下してゆくことが明らかになったＱ 本発明はかかゐ点ｒ鑑みなされたもので、その目的とす
るところは、内管の内外壁に発生する着色現象を除去す
ることにより、光束劣化を改善した螢光ラングを提供す
るにある。In this way, the luminous flux rapidly decreases. At the same time, when the transmittance of the glass of the inner tube 8 was measured, it was found that the transmittance rapidly decreased in the form of Another object of the present invention is to provide a fluorescent rung in which luminous flux deterioration is improved by eliminating the coloring phenomenon that occurs on the inner and outer walls of the inner tube.

まず、上述のように内ｖ２が黒・茶色に着色するメカニ
ズムについて考える。着色した内管２を観察すると、内
壁が黒色に着色し、外壁は茶色に着色していることが明
らかになった。更に、内管２の内壁からは水銀が、外壁
からは鉛とナトリウムが多量に検出された。このことか
ら、内管内壁の黒着色は、放電空間内の水銀イオンと、
ガラス内のす）　ＩＪウムイオンとが置換して、内管内
に拡散していた水銀が析出する事に起因するものであり
、外壁の茶着色は、放電空間内の１８１５　ｎｍ　及び
２５４　ｎｍ紫外線により、管内の接着剤及びスペーサ
８から放出されたＣＯと、内管２のガラス成分のｐｂｏ
とが反応して ＰｂＯ＋　Ｃｏ　　−Ｐｂ　十Ｃｏ。First, consider the mechanism by which inner v2 is colored black/brown as described above. Observation of the colored inner tube 2 revealed that the inner wall was colored black and the outer wall was colored brown. Furthermore, large amounts of mercury were detected on the inner wall of the inner tube 2, and large amounts of lead and sodium were detected on the outer wall. From this, the black coloring of the inner wall of the inner tube is caused by mercury ions in the discharge space.
This is due to the precipitation of mercury that had been diffused inside the inner tube as a result of substitution with IJ ions (inside the glass). CO released from the adhesive inside the tube and the spacer 8, and pbo of the glass component of the inner tube 2.
reacts with PbO+Co-Pb+Co.

となり％ｐｂが内管の外壁に析出し、茶色ＩＣ１色する
事に起因するものでおることが判明した。It was found that this was due to the fact that %PB was precipitated on the outer wall of the inner tube, giving it a brown IC color.

そこで、鉛成分及びナトリウム成分を含まない石英ガラ
スを用いて内管２とし、試診した結果。Therefore, the inner tube 2 was made of quartz glass that does not contain lead or sodium components, and the results were tested.

内管２への着色もなくなり５発光束は （６） と著しく改善された。The coloring on the inner tube 2 is gone, and the luminous flux of 5 is (6) was significantly improved.

本発明は上記のように、外管とステムにより形成される
気密空間内に、複数本の屈曲内管をスペーサを介して直
列構成し、該内管の互いの連絡部の少なくとも１ケ所を
上記気密空間に対して開放すると共に、上記直列構成せ
る内管の両端に電極を設け、該内管を放電路とする螢光
ラングにおいて、上記内管を鉛成分及びす）　１３ウム
成分を含着ないガラスで構成したことを特徴とするので
、内管の着色に基づく発光束の早期低下を改善すること
ができた。As described above, the present invention comprises configuring a plurality of bent inner tubes in series via a spacer in an airtight space formed by an outer tube and a stem, and connecting at least one of the mutually communicating portions of the inner tubes with each other as described above. In a fluorescent rung which is open to an airtight space and has electrodes at both ends of the inner tubes configured in series, and which uses the inner tubes as a discharge path, the inner tubes are impregnated with a lead component. Since the tube is characterized by being constructed of non-woven glass, it was possible to improve the early drop in luminous flux caused by the coloring of the inner tube.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は螢光ランプの斜視図、第２図は同上のラン１部
の分解斜視図である。 １・・・外ｖ、ｇ・・・内１ｉ　＋　ａ・・・スペーサ
、４・・・ステム、６・・・螢光体、８・・・連絡孔、
ｔａ・・・電極。 （６）FIG. 1 is a perspective view of the fluorescent lamp, and FIG. 2 is an exploded perspective view of part 1 of the same run. 1... Outer v, g... Inner 1i + a... Spacer, 4... Stem, 6... Fluorescent material, 8... Communication hole,
ta...electrode. (6)

Claims (1)

【特許請求の範囲】[Claims] （１）　　外管とステムにより形成される気密空間内に
、複数本の屈曲内管をスペーサを介して直列構成し、該
内管の互いの連結部の少なくとも１ケ所を上記気密空間
に対して開放すると共に、上記直列構成せる内管の両端
に電極を設け、該内管を放電路とすゐ螢光ランプにおい
て、上記内管と鉛成分及びす）　ＩＪウム成分を含まな
いガラスで構成したことを特徴とする螢光ランプ。(1) A plurality of bent inner tubes are arranged in series with spacers interposed in the airtight space formed by the outer tube and the stem, and at least one of the joints of the inner tubes is connected to the airtight space. In a fluorescent lamp, electrodes are provided at both ends of the inner tube arranged in series, and the inner tube is used as a discharge path. A fluorescent lamp characterized by: