JPH08250066A - Fluorescent lamp with means for extinguishing arc at lifetime end - Google Patents
Fluorescent lamp with means for extinguishing arc at lifetime endInfo
- Publication number
- JPH08250066A JPH08250066A JP8050797A JP5079796A JPH08250066A JP H08250066 A JPH08250066 A JP H08250066A JP 8050797 A JP8050797 A JP 8050797A JP 5079796 A JP5079796 A JP 5079796A JP H08250066 A JPH08250066 A JP H08250066A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent lamp
- tube
- lamp
- titanium
- metal hydride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 claims abstract description 24
- 229910052987 metal hydride Inorganic materials 0.000 claims abstract description 15
- 150000004681 metal hydrides Chemical class 0.000 claims abstract description 15
- -1 titanium hydride Chemical compound 0.000 claims abstract description 5
- 229910000048 titanium hydride Inorganic materials 0.000 claims abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 claims description 10
- 230000008021 deposition Effects 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- 229910001093 Zr alloy Inorganic materials 0.000 claims 1
- VSTCOQVDTHKMFV-UHFFFAOYSA-N [Ti].[Hf] Chemical compound [Ti].[Hf] VSTCOQVDTHKMFV-UHFFFAOYSA-N 0.000 claims 1
- INIGCWGJTZDVRY-UHFFFAOYSA-N hafnium zirconium Chemical compound [Zr].[Hf] INIGCWGJTZDVRY-UHFFFAOYSA-N 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 239000011572 manganese Substances 0.000 claims 1
- PMTRSEDNJGMXLN-UHFFFAOYSA-N titanium zirconium Chemical compound [Ti].[Zr] PMTRSEDNJGMXLN-UHFFFAOYSA-N 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 10
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/302—Vessels; Containers characterised by the material of the vessel
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、蛍光ランプ（以
下、単に「ランプ」とも称する）に関し、特に、寿命終
了時にランプ内のアークを消滅させる手段を備えた蛍光
ランプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp (hereinafter, also simply referred to as "lamp"), and more particularly to a fluorescent lamp having means for extinguishing an arc in the lamp at the end of its life.
【０００２】[0002]
【従来の技術】近年、高周波でランプを作動させる電子
バラスト（電子安定器）（以下、単に「バラスト」とも
称する）を備えた蛍光ランプの使用が増大してきてい
る。そのようなバラストは、別個の陰極を設けるか、別
途の熱電流を供給する必要なしに、ランプを直接点灯さ
せるのに十分に高い開放回路電圧を創生する「即時始
動」型のものが多い。2. Description of the Related Art In recent years, the use of fluorescent lamps equipped with electronic ballasts (electronic ballasts) (hereinafter also simply referred to as "ballasts") for operating the lamps at high frequencies has been increasing. Such ballasts are often of the "immediate start" type, which creates an open circuit voltage high enough to directly light the lamp without the need to provide a separate cathode or supply a separate thermal current. .
【０００３】ランプの寿命は、その電極の１つの電子放
出コーチングが枯渇した（即ち、劣化した）とき、終
る。電源線の周波数で低開放回路電圧バラストでランプ
を作動させるタイプの場合は、ランプのアークは、第１
電極が劣化する（働かなくなる）と受動的に消滅する。
しかしながら、即時始動型電子バラストの場合は、第１
電極が劣化しても（働かなくなっても）、必ずしもラン
プアークは消滅しない。即時始動型バラストによって供
給される開放回路電圧は、ランプを「冷陰極」モードで
引き続き作動させるのに十分に高い電圧である。冷陰極
モードでの作動中、陰極電圧は、約１２ボルトから５０
ボルト以上に上昇する。The life of a lamp ends when the electron emission coating of one of its electrodes is depleted (ie, degraded). In the case of the type that operates the lamp with a low open circuit voltage ballast at the frequency of the power line, the arc of the lamp is
When the electrode deteriorates (does not work), it disappears passively.
However, in the case of an instant start type electronic ballast, the first
Even if the electrode deteriorates (does not work), the lamp arc does not necessarily disappear. The open circuit voltage provided by the instant start ballast is high enough to continue operating the lamp in "cold cathode" mode. During operation in cold cathode mode, the cathode voltage is approximately 12 volts to 50 volts.
Rise above the bolt.
【０００４】図１及びを参照して説明すると、ガラス外
囲器８の両端に電極４，６を有する従来技術の蛍光ラン
プ２においては、第１電極６が劣化する（働かなくな
る）と、イオン衝撃によりタングステンコイル１０、導
線１２，１４、及び外囲器８内のその他の金属製部材が
加熱される。これらの金属製部品１０，１２，１４等
は、アークを維持するのに十分な熱電子及び二次電子放
出を行うような温度にまで加熱される。更に、劣化した
ランプ端（働かなくなった電極を有する側のランプ端）
における電力の放散が著しく増大する。その結果、外囲
器８の端部が、その平常作動温度よりはるかに高い温度
に加熱される。外囲器８内の導線１２，１４は、溶融し
て、外囲器を通して溶け出し、外囲器に亀裂を生じさせ
たりし、ときにはランプを照明器具から取り外したとき
外囲器が割れる原因ともなる。ランプ端の過熱は、又、
ランプが差し込まれているソケットやを取付器具に損傷
を与えたり、プラスチック製のランプ基部を溶融させた
りすることもある。Referring to FIG. 1 and FIG. 1, in the prior art fluorescent lamp 2 having the electrodes 4 and 6 at both ends of the glass envelope 8, when the first electrode 6 deteriorates (does not work), ions are generated. The impact heats the tungsten coil 10, the conductive wires 12 and 14, and other metal members in the envelope 8. These metallic parts 10, 12, 14 etc. are heated to a temperature sufficient to carry out thermionic and secondary electron emission to maintain the arc. Furthermore, the deteriorated lamp end (the lamp end on the side having the inoperative electrode)
The power dissipation in is significantly increased. As a result, the end of the envelope 8 is heated to a temperature much higher than its normal operating temperature. The conductors 12 and 14 in the envelope 8 melt and melt through the envelope, causing cracks in the envelope, and sometimes causing the envelope to crack when the lamp is removed from the luminaire. Become. The overheating of the lamp end
It may damage the fixture or the socket in which the lamp is plugged or may melt the plastic lamp base.
【０００５】[0005]
【発明が解決しようとする課題】この問題を軽減するた
めに、ランプ電圧の上昇、又は陰極劣化に基因するその
他の事象を検出し、ランプを停止させるための追加の回
路を備えた即時始動型電子バラストが提案されている。
しかしながら、そのような追加の電子部品は、バラスト
のコストを相当に増大させる。しかも、そのような特徴
をもたないバラストが、既存のランプ器具に既に多数使
用されている。従って、ランプの寿命終了時にアークを
停止させるための手段で、追加の回路や電子部品を必要
としない手段を内蔵した蛍光ランプを求める要望があ
る。本発明は、この課題を解決することを企図する。To alleviate this problem, an immediate start with additional circuitry to detect lamp voltage rise or other events due to cathode degradation and to shut down the lamp. Electronic ballasts have been proposed.
However, such additional electronics add significantly to the cost of the ballast. Moreover, many ballasts that do not have such characteristics are already used in existing lamp fixtures. Therefore, there is a need for a fluorescent lamp that incorporates a means for stopping the arc at the end of the life of the lamp that does not require additional circuitry or electronic components. The present invention seeks to solve this problem.
【０００６】従って、本発明の目的は、ランプの寿命終
了時にアークを停止させるためのアーク停止手段を内蔵
した蛍光ランプを提供することである。Therefore, it is an object of the present invention to provide a fluorescent lamp having a built-in arc stopping means for stopping the arc at the end of the life of the lamp.
【０００７】本発明の他の目的は、追加の回路や電子部
品を必要とすることなく、ランプの寿命終了時にアーク
を停止させるためのアーク停止手段を内蔵した蛍光ラン
プを提供することである。Another object of the present invention is to provide a fluorescent lamp having a built-in arc stopping means for stopping the arc at the end of its life without the need for additional circuitry or electronic components.
【０００８】[0008]
【課題を解決するための手段】本発明は、上記課題を解
決するために、ガラス管と、該管内の両端の各々に設け
られたタングステンコイルと該管の密封された各端を貫
通してそれぞれの対応するコイルに接続された１対の導
線から成る電極とから成り、ランプの平常作動中におけ
る管内の温度より高い分解温度を有する金属水素化物含
有ペーストの被着層が該管内に配設されていることを特
徴とする蛍光ランプを提供する。In order to solve the above problems, the present invention penetrates a glass tube, a tungsten coil provided at each of both ends of the glass tube, and each sealed end of the tube. An electrode consisting of a pair of conductors connected to respective corresponding coils, wherein a deposition layer of a metal hydride-containing paste having a decomposition temperature higher than the temperature in the tube during normal operation of the lamp is arranged in the tube. To provide a fluorescent lamp.
【０００９】[0009]
【発明の実施の形態】図３を参照すると、本発明の一実
施の形態による蛍光ランプ２が示されている。蛍光ラン
プ２は、ガラス管即ち外囲器８と、管８内の両端に設け
られた電極４，６（図には１つの電極６だけが示されて
いる）から成る。各電極は、管８の内部に設けられたタ
ングステン等のコイル１０と、管８の密封された各端を
貫通してそれぞれの対応するコイル１０に接続された１
対の導線１２，１４から成る。管８内には、ランプ２の
平常作動中における管８内の温度より高い分解温度を有
する金属水素化物含有ペーストの被着層（以下、「金属
水素化物含有被着層」又は単に「被着層」とも称する）
３０が配設されている。ランプの平常作動中、この金属
水素化物含有ペーストの温度は１５０°Ｃ以下に維持さ
れることが好ましい。電極６は、図２に示された従来の
ものと類似しているが、導線１２，１４の各々に金属水
素化物含有被着層３０が被着されているという点で異な
る。被着層３０は、管８の各端において導線１２，１４
に、そのガラス製シール３２から突出している部位で、
即ち導線とガラス製シールとの界面で接合することが好
ましい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 3, there is shown a fluorescent lamp 2 according to an embodiment of the present invention. The fluorescent lamp 2 comprises a glass tube or envelope 8 and electrodes 4, 6 (only one electrode 6 is shown in the figure) provided at both ends inside the tube 8. Each electrode is connected to a coil 10 of tungsten or the like provided inside the tube 8 and a corresponding coil 10 through each sealed end of the tube 8.
It consists of a pair of conductors 12, 14. In the tube 8, a deposition layer of a metal hydride-containing paste having a decomposition temperature higher than the temperature in the tube 8 during the normal operation of the lamp 2 (hereinafter referred to as “metal hydride-containing deposition layer” or simply “deposition”). Also referred to as "layer")
30 are provided. During normal operation of the lamp, the temperature of the metal hydride containing paste is preferably maintained below 150 ° C. The electrode 6 is similar to the conventional one shown in FIG. 2 except that each of the conductors 12, 14 has a metal hydride-containing deposit layer 30 deposited thereon. The deposited layer 30 is formed by the conductors 12, 14 at each end of the tube 8.
At the portion protruding from the glass seal 32,
That is, it is preferable to bond at the interface between the conductor and the glass seal.
【００１０】作動において、ランプの一端の陰極コーチ
ング（電子放出コーチング）が枯渇することによってラ
ンプの寿命が終了すると、その端部のコイル１０が、そ
の平常作動温度よりはるかに高い温度に昇温し、最終的
に焼き切れる。次いで、ランプのアークが、導線１２か
１４のどちらかにつながり、その導線の温度を上昇させ
る。そしてその導線を伝って伝達された熱が、金属水素
化物含有ペーストの被着層３０を熱分解させ、ランプ内
に水素が放出される。その間に、ペーストの温度は６５
０°Ｃ以上に達する。管８内に水素が存在することによ
り、ランプの過度の端部加熱やガラス管の亀裂を生じる
ことなく、放電を維持するのに必要とされる電圧を即時
始動型バラスト（安定器）によって供給される電圧より
十分に高いレベルに上昇させ、ランプを受動的に停止さ
せる。水素の放出は、劣化したランプを保持する取付器
具（照明器具のソケット部）へ損傷を防止するのに十分
に迅速に発生する。放出される水素の量は、通常、５ｍ
ｇの被着層から約１Torr/リットルの割り合いで放出さ
れ、比較的大型のランプ内のアークでも消滅させるのに
十分な量である。In operation, at the end of the lamp's life due to exhaustion of the cathode coating (electron emission coating) at one end of the lamp, the coil 10 at that end heats up to a temperature well above its normal operating temperature. , Finally burned out. The lamp arc then connects to either conductor 12 or 14 and raises the temperature of that conductor. Then, the heat transferred through the conductive wire thermally decomposes the deposition layer 30 of the metal hydride-containing paste, and hydrogen is released into the lamp. Meanwhile, the temperature of the paste is 65
Reach above 0 ° C. The presence of hydrogen in the tube 8 supplies the voltage needed to sustain the discharge by an immediate start ballast without causing excessive end heating of the lamp or cracking of the glass tube. The voltage is raised to a level well above the applied voltage to passively shut off the lamp. The release of hydrogen occurs quickly enough to prevent damage to the fixture holding the deteriorated lamp (socket part of the luminaire). The amount of hydrogen released is usually 5 m
It is emitted from the deposited layer of g at a rate of about 1 Torr / liter, which is enough to extinguish even the arc in a relatively large lamp.
【００１１】本発明に用いるのに好ましい金属水素化物
含有ペーストの１例は、微粉状水素化チタン４０重量部
と、コロイド状のアルミナ水中懸濁物６０重量部を混合
することによって処方される。乾燥したとき約５ｍｇの
重量となる量のこのペーストの層を各導線１２，１４
に、そのガラス製シール３２から突出している基部に被
着し、被着層とする。One preferred metal hydride containing paste for use in the present invention is formulated by mixing 40 parts by weight of finely divided titanium hydride with 60 parts by weight of a colloidal suspension in alumina water. A layer of this paste in an amount of about 5 mg when dried was applied to each wire 12,14.
Then, it is adhered to the base portion protruding from the glass seal 32 to form an adhered layer.
【００１２】金属水素化物含有ペーストの別の例とし
て、コロイド状アルミナ以外のバインダを含むペースト
を用いることもできる。そのようなバインダとしては、
無機物質で、乾燥したときガスの発生を起さない物質、
例えばモンモリロナイトクレーや各種珪酸塩等が好まし
い。As another example of the metal hydride-containing paste, a paste containing a binder other than colloidal alumina can be used. As such a binder,
An inorganic substance that does not generate gas when dried,
For example, montmorillonite clay and various silicates are preferable.
【００１３】図４は、本発明の別の実施形態による蛍光
ランプを示す。図３の実施形態の各部品と同様の部品は
同じ参照番号で示されている。この実施形態の電極構成
においては、２本の導線１２，１４にガラスビード４０
が固定され、上記被着層３０は、好ましくはコイル１０
に近い側のガラスビード４０の表面に被覆されるが、コ
イル１０から遠い側のガラスビード４０の表面、又はコ
イル１０に近い側と遠い側の両側のガラスビード４０の
表面に被覆してもよい。FIG. 4 shows a fluorescent lamp according to another embodiment of the present invention. Similar parts to those of the embodiment of FIG. 3 are designated with the same reference numbers. In the electrode configuration of this embodiment, the glass beads 40 are attached to the two conducting wires 12 and 14.
And the adherend layer 30 is preferably a coil 10
The surface of the glass bead 40 on the side closer to the coil 10 is coated, but the surface of the glass bead 40 on the side far from the coil 10 or the surface of the glass bead 40 on both sides closer to and farther from the coil 10 may be coated. .
【００１４】被着層３０の好ましい金属水素化物は、水
素化チタンＴｉＨ1.7 であるが、チタン、ジルコニウ
ム、ハフニウム、及びそれらの合金、及びそれらの金属
とコバルト、鉄、ニッケル、マンガン及びランタン等の
他の金属との合金、及びそれらの他の金属の組み合わせ
を含む群から選択することができる。The preferred metal hydride for the deposited layer 30 is titanium hydride TiH 1.7 , but titanium, zirconium, hafnium, and their alloys, and their metals with cobalt, iron, nickel, manganese, and lanthanum. It can be selected from the group comprising alloys with other metals, and combinations of those other metals.
【００１５】[0015]
【発明の効果】叙上のように、本発明は、追加の回路や
電子部品を必要とすることなく、ランプの寿命終了時に
アークを停止させるためのアーク停止手段を内蔵した蛍
光ランプを提供する。このアーク停止手段を設けること
に要するコストは、ごく僅かであり、バラストにアーク
停止用回路を設けるためのコスト（そのようなアーク停
止用回路を備えたバラストはランプの寿命の数倍の寿命
を有する）に比べてはるかに安い。As mentioned above, the present invention provides a fluorescent lamp incorporating arc stopping means for stopping the arc at the end of the life of the lamp without the need for additional circuitry or electronic components. . The cost of providing this arc stopping means is very small, and the cost of providing an arc stopping circuit in the ballast (a ballast equipped with such an arc stopping circuit has a life several times that of the lamp). Much cheaper than
【００１６】以上、本発明を実施形態に関連して説明し
たが、本発明は、ここに例示した実施形態の構造及び形
状に限定されるものではなく、本発明の精神及び範囲か
ら逸脱することなく、いろいろな実施形態が可能であ
り、いろいろな変更及び改変を加えることができること
を理解されたい。Although the present invention has been described with reference to the embodiments, the present invention is not limited to the structures and shapes of the embodiments illustrated herein, and deviates from the spirit and scope of the present invention. It should be understood that various embodiments are possible and that various changes and modifications can be made.
【図１】図１は、従来の蛍光ランプの側面図である。FIG. 1 is a side view of a conventional fluorescent lamp.
【図２】図２は、図１のランプの一端部分の拡大概略図
である。FIG. 2 is an enlarged schematic view of one end portion of the lamp shown in FIG.
【図３】図３は、図２と同様の図であるが、本発明の一
実施の形態による蛍光ランプを示す。FIG. 3 is a view similar to FIG. 2, but showing a fluorescent lamp according to an embodiment of the present invention.
【図４】図４は、図３と同様の図であるが、本発明の他
の実施の形態による蛍光ランプを示す。FIG. 4 is a view similar to FIG. 3, but showing a fluorescent lamp according to another embodiment of the present invention.
２：蛍光ランプ ４，６：電極 ８：ガラス管 １０：コイル １２，１４：導線 ３０：金属水素化物含有ペーストの被着層 ３２：ガラス製シール ４０：ガラスビード 2: Fluorescent lamp 4, 6: Electrode 8: Glass tube 10: Coil 12, 14: Conductive wire 30: Adhesive layer of paste containing metal hydride 32: Glass seal 40: Glass bead
Claims (9)
された各端を貫通してそれぞれの対応するコイルに接続
された１対の導線から成る電極と、から成り、該ランプ
の平常作動中における前記管内の温度より高い分解温度
を有する金属水素化物含有ペーストの被着層が該管内に
配設されていることを特徴とする蛍光ランプ。1. A fluorescent lamp comprising: a glass tube, a coil provided at each of both ends of the tube, and 1 connected to a corresponding coil passing through each sealed end of the tube. An electrode composed of a pair of conducting wires, and a deposition layer of a metal hydride-containing paste having a decomposition temperature higher than the temperature in the tube during normal operation of the lamp is disposed in the tube. Fluorescent lamp to do.
被着されていることを特徴とする請求項１に記載の蛍光
ランプ。2. The fluorescent lamp according to claim 1, wherein the deposition layer is deposited on each of the pair of conductive wires.
に、導線とガラス製シールとの界面のところで被着され
ていることを特徴とする請求項１に記載の蛍光ランプ。3. The fluorescent lamp according to claim 1, wherein the deposition layer is deposited on each of the pair of conductive wires at an interface between the conductive wire and the glass seal.
れており、前記被着層は、該ガラスビードに被着されて
いることを特徴とする請求項１に記載の蛍光ランプ。4. The fluorescent lamp according to claim 1, wherein a glass bead is fitted to each of the pair of conductive wires, and the adhesion layer is adhered to the glass bead.
ガラスビードとガラスビードから突出している前記各導
線との界面のところで被着されていることを特徴とする
請求項４に記載の蛍光ランプ。5. The adhesion layer is applied to the glass bead at an interface between the glass bead and each of the conductive wires protruding from the glass bead. Fluorescent lamp.
水素化物は、チタン、ジルコニウム、ハフニウム、チタ
ン−ジルコニウム合金、チタン−ハフニウム合金、及び
ジルコニウム−ハフニウム合金から成る群から選択され
たものであることを特徴とする請求項１に記載の蛍光ラ
ンプ。6. The metal hydride contained in the paste is selected from the group consisting of titanium, zirconium, hafnium, titanium-zirconium alloys, titanium-hafnium alloys, and zirconium-hafnium alloys. The fluorescent lamp according to claim 1, wherein:
ウム及びハフニウムから成る群から選択された１つと、
コバルト、鉄、ニッケル、マンガン及びランタンから成
る群から選択された１つとの合金から成ることを特徴と
する請求項１に記載の蛍光ランプ。7. The metal hydride is one selected from the group consisting of titanium, zirconium and hafnium;
The fluorescent lamp of claim 1 comprising an alloy with one selected from the group consisting of cobalt, iron, nickel, manganese and lanthanum.
成ることを特徴とする請求項１に記載の蛍光ランプ。8. The fluorescent lamp according to claim 1, wherein the metal hydride is made of titanium hydride.
ン４０重量部と、コロイド状のアルミナ水中懸濁物６０
重量部とから成ることを特徴とする請求項８に記載の蛍
光ランプ。9. The paste comprises 40 parts by weight of the finely powdered titanium hydride and a colloidal suspension 60 in water of alumina.
The fluorescent lamp according to claim 8, wherein the fluorescent lamp comprises a weight part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38999595A | 1995-02-17 | 1995-02-17 | |
| US389995 | 1995-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08250066A true JPH08250066A (en) | 1996-09-27 |
| JP2980548B2 JP2980548B2 (en) | 1999-11-22 |
Family
ID=23540604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8050797A Expired - Lifetime JP2980548B2 (en) | 1995-02-17 | 1996-02-15 | Fluorescent lamp with means to extinguish the arc at end of life |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP2980548B2 (en) |
| KR (1) | KR100400615B1 (en) |
| CN (1) | CN1087489C (en) |
| CA (1) | CA2169581C (en) |
| DE (1) | DE69608586T2 (en) |
| HU (1) | HU219695B (en) |
| IN (1) | IN186954B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100374883B1 (en) * | 1998-03-24 | 2003-03-06 | 가시오게산키 가부시키가이샤 | Cold emission electrode, method of manufacturing the same, cold cathode discharge tube, and display device using the same |
| US6794818B1 (en) | 1999-06-08 | 2004-09-21 | Matsushita Electric Industrial Co., Ltd. | Fluorescent lamp |
| JP2008524796A (en) * | 2004-12-21 | 2008-07-10 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Low pressure mercury vapor discharge lamp |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5585693A (en) * | 1995-02-17 | 1996-12-17 | Osram Sylvania Inc. | Fluorescent lamp with end of life arc quenching structure |
| DE10218827A1 (en) * | 2002-04-26 | 2003-11-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Low-pressure discharge lamp with switch-off device at the end of its service life |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6258539A (en) * | 1985-09-09 | 1987-03-14 | Matsushita Electronics Corp | Manufacture of rapid-start fluorescent lamp |
| US5057751A (en) * | 1990-07-16 | 1991-10-15 | General Electric Company | Protective coating for high-intensity metal halide discharge lamps |
| US5098326A (en) * | 1990-12-13 | 1992-03-24 | General Electric Company | Method for applying a protective coating to a high-intensity metal halide discharge lamp |
| US5210461A (en) * | 1992-02-18 | 1993-05-11 | Gte Products Corporation | Arc discharge lamp containing mechanism for extinguishing arc at end-of-life |
| US5585693A (en) * | 1995-02-17 | 1996-12-17 | Osram Sylvania Inc. | Fluorescent lamp with end of life arc quenching structure |
-
1996
- 1996-02-13 IN IN263CA1996 patent/IN186954B/en unknown
- 1996-02-15 JP JP8050797A patent/JP2980548B2/en not_active Expired - Lifetime
- 1996-02-15 CA CA002169581A patent/CA2169581C/en not_active Expired - Fee Related
- 1996-02-16 CN CN96105600A patent/CN1087489C/en not_active Expired - Fee Related
- 1996-02-16 HU HU9600359A patent/HU219695B/en not_active IP Right Cessation
- 1996-02-16 DE DE69608586T patent/DE69608586T2/en not_active Expired - Lifetime
- 1996-02-17 KR KR1019960003994A patent/KR100400615B1/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100374883B1 (en) * | 1998-03-24 | 2003-03-06 | 가시오게산키 가부시키가이샤 | Cold emission electrode, method of manufacturing the same, cold cathode discharge tube, and display device using the same |
| US6794818B1 (en) | 1999-06-08 | 2004-09-21 | Matsushita Electric Industrial Co., Ltd. | Fluorescent lamp |
| JP2008524796A (en) * | 2004-12-21 | 2008-07-10 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Low pressure mercury vapor discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1087489C (en) | 2002-07-10 |
| CN1141498A (en) | 1997-01-29 |
| DE69608586T2 (en) | 2001-02-15 |
| HU9600359D0 (en) | 1996-04-29 |
| JP2980548B2 (en) | 1999-11-22 |
| CA2169581C (en) | 2006-11-14 |
| HUP9600359A2 (en) | 1996-11-28 |
| HUP9600359A3 (en) | 1999-11-29 |
| DE69608586D1 (en) | 2000-07-06 |
| KR960032574A (en) | 1996-09-17 |
| HU219695B (en) | 2001-06-28 |
| IN186954B (en) | 2001-12-22 |
| CA2169581A1 (en) | 1996-08-18 |
| KR100400615B1 (en) | 2003-12-18 |
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