JP4507773B2 - Discharge lamp - Google Patents

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JP4507773B2
JP4507773B2 JP2004261690A JP2004261690A JP4507773B2 JP 4507773 B2 JP4507773 B2 JP 4507773B2 JP 2004261690 A JP2004261690 A JP 2004261690A JP 2004261690 A JP2004261690 A JP 2004261690A JP 4507773 B2 JP4507773 B2 JP 4507773B2
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resistor
temperature coefficient
resistance temperature
electrode
bulb
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JP2006079910A (en
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隆宣 三村
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日立ライティング株式会社
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本発明は水銀または水銀化合物を使用した放電ランプに係り、特に放電生起直後の光束立ち上がり特性を改善した放電ランプに関する。   The present invention relates to a discharge lamp using mercury or a mercury compound, and more particularly to a discharge lamp having improved luminous flux rising characteristics immediately after the occurrence of discharge.

アマルガムのような水銀化合物を使用した放電ランプでは、一般的に水銀を使用した放電ランプに比べて、放電生起直後の光束立ち上がり特性が劣る。そこで、例えばアマルガムを使用した電球形蛍光ランプでは、定常点灯時の水銀蒸気圧を決めるための主アマルガムとは別に、放電生起直後の水銀放出を促進する目的で、電極近傍に補助アマルガムを設けている。補助アマルガムには水銀を吸着・放出しやすいようにしたメッシュ状の金属体がよく用いられる。しかし、放電生起直後は補助アマルガムの温度が低いために水銀を効率良く放出することが難しい。
そこで、例えば特開2002−260583号公報に記載の蛍光ランプでは、ランプ点灯時に発光管の管端部以外の放電路中に配置された補助アマルガムに放電電流を流入させる手段を蛍光ランプの電子点灯回路に備える。これにより、ランプ点灯直後の光束立ち上がり特性を改善しようとするものである。
特開2002−260583号公報
A discharge lamp using a mercury compound such as amalgam is generally inferior in luminous flux rising characteristics immediately after the occurrence of discharge, compared to a discharge lamp using mercury. Therefore, for example, in a bulb-type fluorescent lamp using amalgam, an auxiliary amalgam is provided in the vicinity of the electrode for the purpose of promoting mercury release immediately after the occurrence of discharge, in addition to the main amalgam for determining the mercury vapor pressure during steady lighting. Yes. For the auxiliary amalgam, a mesh-like metal body that is easy to adsorb and release mercury is often used. However, it is difficult to efficiently release mercury immediately after the discharge occurs because the temperature of the auxiliary amalgam is low.
Therefore, for example, in the fluorescent lamp disclosed in Japanese Patent Application Laid-Open No. 2002-260583, means for injecting a discharge current into the auxiliary amalgam disposed in the discharge path other than the tube end portion of the arc tube when the lamp is lit is used for electronic lighting of the fluorescent lamp. Prepare for the circuit. Thereby, it is intended to improve the light beam rise characteristic immediately after the lamp is turned on.
JP 2002-260583 A

しかしながら、蛍光ランプの電子点灯回路中に補助アマルガムを通電加熱する機能を付加する場合には回路構成が複雑になり、また部品点数が増加するために点灯回路基板面積が大きくなるという欠点を有する。   However, when a function for energizing and heating the auxiliary amalgam is added to the electronic lighting circuit of the fluorescent lamp, the circuit configuration becomes complicated, and the number of parts increases, so that the lighting circuit board area increases.

従って本発明の目的は、ランプ点灯回路の構成を複雑にすることなく、光束立ち上がり特性を改善し得る放電ランプを提供することにある。   Accordingly, an object of the present invention is to provide a discharge lamp capable of improving the luminous flux rising characteristic without complicating the configuration of the lamp lighting circuit.

上記目的は、放電媒体が封入されたガラス管バルブと、前記バルブ内に配設された電極と、前記電極の両側にそれぞれ接続されたリード線と、前記リード線に配設された前記放電媒体を吸着および放出するための金属体と、前記リード線間に接続された負特性抵抗温度係数を持つ抵抗器とを具備した放電ランプにより達成される。   The object is to provide a glass tube bulb in which a discharge medium is enclosed, an electrode disposed in the bulb, lead wires connected to both sides of the electrode, and the discharge medium disposed in the lead wire. This is achieved by a discharge lamp comprising a metal body for adsorbing and releasing the metal and a resistor having a negative characteristic resistance temperature coefficient connected between the lead wires.

ここで、前記放電媒体を吸着および放出するための金属体は、前記電極と負特性抵抗温度係数を持つ抵抗器との間に配設することができる。また、前記放電媒体を吸着および放出するための金属体と負特性抵抗温度係数を持つ抵抗器とを前記リード線間に直列接続することができる。さらに、前記放電媒体を吸着および放出するための金属体と負特性抵抗温度係数を持つ抵抗器とを前記バルブの端部からほぼ同一距離の同一平面上に配設することができる。   Here, the metal body for adsorbing and discharging the discharge medium can be disposed between the electrode and a resistor having a negative characteristic resistance temperature coefficient. In addition, a metal body for adsorbing and releasing the discharge medium and a resistor having a negative characteristic resistance temperature coefficient can be connected in series between the lead wires. Furthermore, a metal body for adsorbing and discharging the discharge medium and a resistor having a negative characteristic resistance temperature coefficient can be disposed on the same plane at substantially the same distance from the end of the bulb.

本発明に係る放電ランプは、内部に主アマルガムを備えたガラス管バルブと、前記バルブ内に配設された電極と、前記電極の両側にそれぞれ接続されたリード線と、前記リード線に配設された補助アマルガムと、前記リード線間に接続された負特性抵抗温度係数を持つ抵抗器とを具備したものである。この場合、前記補助アマルガムは、前記電極と負特性抵抗温度係数を持つ抵抗器との間に配設することができ、また、前記補助アマルガムと負特性抵抗温度係数を持つ抵抗器とを前記リード線間に直列接続することができ、さらに、前記補助アマルガムと負特性抵抗温度係数を持つ抵抗器とを前記バルブの端部からほぼ同一距離の同一平面上に配設することができる。   A discharge lamp according to the present invention includes a glass tube bulb having a main amalgam therein, electrodes disposed in the bulb, lead wires respectively connected to both sides of the electrode, and disposed on the lead wires. And a resistor having a negative characteristic resistance temperature coefficient connected between the lead wires. In this case, the auxiliary amalgam can be disposed between the electrode and a resistor having a negative characteristic resistance temperature coefficient, and the auxiliary amalgam and a resistor having a negative characteristic resistance temperature coefficient are connected to the lead. The auxiliary amalgam and the resistor having a negative characteristic resistance temperature coefficient can be disposed on the same plane at substantially the same distance from the end of the bulb.

本発明によれば、放電生起直後に、ガラス管バルブ内に設けられた負特性抵抗温度係数を持つ抵抗器の自己発熱による輻射熱によって放電媒体を吸着および放出するための金属体(補助アマルガム)からの水銀放出が促進されて光束立ち上がり特性が改善される。これにより、ランプ点灯回路の構成を複雑にすることなく、光束立ち上がり特性を改善し得る放電ランプを提供することができる。   According to the present invention, immediately after the occurrence of discharge, from a metal body (auxiliary amalgam) for adsorbing and releasing the discharge medium by radiant heat due to self-heating of a resistor having a negative characteristic resistance temperature coefficient provided in the glass tube bulb. The mercury emission is promoted, and the luminous flux rise characteristic is improved. Thereby, it is possible to provide a discharge lamp capable of improving the luminous flux rising characteristic without complicating the configuration of the lamp lighting circuit.

本発明に係る光束立ち上がり特性を改善する放電ランプにおける実施形態につき、その実施例を挙げて、添付図面を参照しながら以下に説明するが、その前に本発明に係る放電ランプの例として電球形蛍光ランプの概略について説明する。   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a discharge lamp for improving luminous flux rise characteristics according to the present invention will be described below with reference to the accompanying drawings with reference to the accompanying drawings. An outline of the fluorescent lamp will be described.

図1(a)は電球形蛍光ランプの一例を示す一部切欠き図である。図中、参照符号11は放電ランプ、12はガラスグローブ、13はプラスチック製ケース、14は口金である。放電ランプ11は、本例では4本のU字状ガラス管が連結されて一体化されている。その構造は正方形の各辺にU字状ガラス管が配置され、隣接するU字状ガラス管とはその下部で連通している。   FIG. 1A is a partially cutaway view showing an example of a bulb-type fluorescent lamp. In the figure, reference numeral 11 is a discharge lamp, 12 is a glass globe, 13 is a plastic case, and 14 is a base. In this example, the discharge lamp 11 is integrated by connecting four U-shaped glass tubes. In the structure, a U-shaped glass tube is arranged on each side of the square, and communicates with the adjacent U-shaped glass tube at its lower part.

図1(b)は図1(a)の電球形蛍光ランプに用いられる本発明に係る放電ランプの一例を示す展開図である。本例では説明を簡略化するためU字状ガラス管バルブの連結数を2本にしているが、U字状ガラス管バルブの数はこれに限定されず1本または複数本とすることができる。図中、放電媒体が封入されたU字状ガラス管バルブ21,22は連結部23において接合され一つの放電路を形成している。U字状ガラス管バルブ21,22の両端のガラス管バルブには電極部24,25が設けられている。U字状ガラス管バルブ21には細管26が接続され、その中に主アマルガム27が設置されている。主アマルガムは、例えばHgとInやBi、Pb、Snなどとの合金である。電極部24,25には、放電媒体を吸着および放出するための金属体(補助アマルガム)がリード線に固定されている。補助アマルガムは、例えば鋼やニッケルの表面にInなどをメッキして表面に水銀合金が形成できるようにしたものである。電極部24,25の構成については以下の実施例で詳述する。U字状ガラス管バルブの連結数が3本以上の場合は中間部のU字状ガラス管バルブ内に別途補助アマルガムが設置される。   FIG.1 (b) is an expanded view which shows an example of the discharge lamp based on this invention used for the lightbulb-type fluorescent lamp of Fig.1 (a). In this example, the number of connections of the U-shaped glass tube bulb is set to two in order to simplify the explanation, but the number of U-shaped glass tube valves is not limited to this and can be one or more. . In the figure, U-shaped glass tube bulbs 21 and 22 in which a discharge medium is sealed are joined at a connecting portion 23 to form one discharge path. Electrode portions 24 and 25 are provided on the glass tube valves at both ends of the U-shaped glass tube valves 21 and 22. A thin tube 26 is connected to the U-shaped glass tube bulb 21 and a main amalgam 27 is installed therein. The main amalgam is, for example, an alloy of Hg and In, Bi, Pb, Sn or the like. A metal body (auxiliary amalgam) for adsorbing and releasing the discharge medium is fixed to the lead wires on the electrode portions 24 and 25. The auxiliary amalgam is formed by plating In on the surface of steel or nickel, for example, so that a mercury alloy can be formed on the surface. The configuration of the electrode parts 24 and 25 will be described in detail in the following examples. When the number of U-shaped glass tube bulbs connected is three or more, an auxiliary amalgam is separately installed in the middle U-shaped glass tube bulb.

(実施例1)
図2は、本発明に係る放電ランプの第1の実施例を示すもので、放電ランプの電極部の縦断面図である。図2において、参照符号1は透光性のガラス管バルブ、2はフィラメント電極、3はガラス管バルブ内に封入された放電媒体、4は補助アマルガム、5は負特性抵抗温度係数を持つ抵抗器、6はガラス管バルブ内に塗布された蛍光体、7はガラス管バルブを封止するマウント、8および9はフィラメント電極に接続されたリード線である。リード線8,9は所定間隔を保ってそれぞれマウント7を通してガラス管バルブ1内に伸び、それぞれフィラメント電極2の両側に接続されている。フィラメント電極2よりもマウント7側のリード線8,9間には負特性抵抗温度係数を持つ抵抗器5が接続されている。すなわち、フィラメント電極2と負特性抵抗温度係数を持つ抵抗器5はリード線間に並列接続される。また、フィラメント電極2とマウント7間であって負特性抵抗温度係数を持つ抵抗器5の近傍に補助アマルガム4が配置される。本実施例では、補助アマルガム4はフィラメント電極2と負特性抵抗温度係数を持つ抵抗器5間のリード線9に取り付けられているが、負特性抵抗温度係数を持つ抵抗器5よりもマウント7側に設けることもできる。この抵抗器5は放電ランプ点灯装置内にあったものを用いることで装置内の基板を小さくできる。リード線8,9は図示しない放電ランプ点灯装置に接続される。
Example 1
FIG. 2 shows a first embodiment of a discharge lamp according to the present invention, and is a longitudinal sectional view of an electrode portion of the discharge lamp. In FIG. 2, reference numeral 1 is a transparent glass tube bulb, 2 is a filament electrode, 3 is a discharge medium enclosed in the glass tube bulb, 4 is an auxiliary amalgam, and 5 is a resistor having a negative characteristic resistance temperature coefficient. , 6 is a phosphor applied in the glass tube bulb, 7 is a mount for sealing the glass tube bulb, and 8 and 9 are lead wires connected to the filament electrode. The lead wires 8 and 9 extend through the mount 7 into the glass tube bulb 1 at a predetermined interval, and are connected to both sides of the filament electrode 2, respectively. A resistor 5 having a negative characteristic resistance temperature coefficient is connected between the lead wires 8 and 9 closer to the mount 7 than the filament electrode 2. That is, the filament electrode 2 and the resistor 5 having a negative characteristic resistance temperature coefficient are connected in parallel between the lead wires. An auxiliary amalgam 4 is disposed between the filament electrode 2 and the mount 7 and in the vicinity of the resistor 5 having a negative characteristic resistance temperature coefficient. In this embodiment, the auxiliary amalgam 4 is attached to the lead wire 9 between the filament electrode 2 and the resistor 5 having a negative characteristic resistance temperature coefficient, but on the mount 7 side than the resistor 5 having the negative characteristic resistance temperature coefficient. It can also be provided. The resistor 5 used in the discharge lamp lighting device can be used to reduce the substrate in the device. The lead wires 8 and 9 are connected to a discharge lamp lighting device (not shown).

図2に示すような放電ランプは、放電ランプ点灯装置に接続されて点灯する場合、先ずフィラメント電極2に電流を流してフィラメント電極2から放電生起を促進する電子を放出させる。このときフィラメント電極2に並列接続されている負特性抵抗温度係数を持つ抵抗器5にも電流が流れるため、負特性抵抗温度係数を持つ抵抗器5が自己発熱する。   When a discharge lamp as shown in FIG. 2 is connected to a discharge lamp lighting device and is lit, first a current is supplied to the filament electrode 2 to emit electrons that promote the occurrence of discharge from the filament electrode 2. At this time, since the current also flows through the resistor 5 having a negative characteristic resistance temperature coefficient connected in parallel to the filament electrode 2, the resistor 5 having the negative characteristic resistance temperature coefficient self-heats.

図3は、負特性抵抗温度係数を持つ抵抗器5の抵抗温度特性を示すグラフである。この抵抗器5は、図示のように、温度上昇と共に抵抗値が減少する負性抵抗特性を持つ。   FIG. 3 is a graph showing the resistance temperature characteristic of the resistor 5 having a negative characteristic resistance temperature coefficient. As shown in the figure, the resistor 5 has a negative resistance characteristic in which the resistance value decreases as the temperature rises.

フィラメント電極2とマウント7の間、且つ負特性抵抗温度係数を持つ抵抗器5の近傍に配設された補助アマルガム4は、負特性抵抗温度係数を持つ抵抗器5からの輻射熱によって表面に吸着している水銀を効率良く放出する。従って、放電生起直後の光束立ち上がり特性を改善することができる。また、負特性抵抗温度係数を持つ抵抗器5は前述の通り、通電直後は抵抗値が比較的高いが、自己発熱によって温度が上昇すると抵抗値が小さくなるために、負特性抵抗温度係数を持つ抵抗器5の温度が十分上昇した後はフィラメント電極2に流れる電流を低減できる。従って、ランプ点灯中にフィラメント電極2で発生する損失を低減することもできる。また、放電ランプ点灯装置の回路基板に部品を追加搭載する必要がないため、基板面積増大の必要性がない。   The auxiliary amalgam 4 disposed between the filament electrode 2 and the mount 7 and in the vicinity of the resistor 5 having a negative characteristic resistance temperature coefficient is adsorbed on the surface by radiant heat from the resistor 5 having a negative characteristic resistance temperature coefficient. Efficiently releases mercury. Accordingly, it is possible to improve the luminous flux rising characteristics immediately after the occurrence of discharge. Further, as described above, the resistor 5 having a negative characteristic resistance temperature coefficient has a relatively high resistance value immediately after energization, but has a negative characteristic resistance temperature coefficient because the resistance value decreases as the temperature rises due to self-heating. After the temperature of the resistor 5 rises sufficiently, the current flowing through the filament electrode 2 can be reduced. Therefore, it is possible to reduce the loss generated in the filament electrode 2 while the lamp is lit. Further, since it is not necessary to additionally mount components on the circuit board of the discharge lamp lighting device, there is no need to increase the board area.

(実施例2)
図4は、本発明に係る放電ランプの第2の実施例を示すもので、放電ランプの電極部の縦断面図である。図4において、参照符号1は透光性のガラス管バルブ、2はフィラメント電極、3はガラス管バルブ内に封入された放電媒体、4は補助アマルガム、5は負特性抵抗温度係数を持つ抵抗器、6はガラス管バルブ内に塗布された蛍光体、7はガラス管バルブを封止するマウント、8および9はフィラメント電極に接続されたリード線である。本実施例が第1の実施例と異なる点は、補助アマルガム4の取り付け位置である。本実施例では、補助アマルガム4は負特性抵抗温度係数を持つ抵抗器5と直列接続される。すなわち、補助アマルガム4と負特性抵抗温度係数を持つ抵抗器5の直列接続体が、図示のように、フィラメント電極2と並列接続される。
(Example 2)
FIG. 4 shows a second embodiment of the discharge lamp according to the present invention, and is a longitudinal sectional view of an electrode portion of the discharge lamp. In FIG. 4, reference numeral 1 is a transparent glass tube bulb, 2 is a filament electrode, 3 is a discharge medium enclosed in the glass tube bulb, 4 is an auxiliary amalgam, and 5 is a resistor having a negative characteristic resistance temperature coefficient. , 6 is a phosphor applied in the glass tube bulb, 7 is a mount for sealing the glass tube bulb, and 8 and 9 are lead wires connected to the filament electrode. This embodiment is different from the first embodiment in the attachment position of the auxiliary amalgam 4. In this embodiment, the auxiliary amalgam 4 is connected in series with a resistor 5 having a negative characteristic resistance temperature coefficient. That is, a series connection body of the auxiliary amalgam 4 and the resistor 5 having a negative characteristic resistance temperature coefficient is connected in parallel to the filament electrode 2 as shown in the figure.

図4に示す放電ランプにおいても前述の第1の実施例と同様に、放電ランプ点灯装置に接続されて点灯する場合、先ずフィラメント電極2に電流を流してフィラメント電極から放電生起を促進する電子を放出させる。このときフィラメント電極2に並列接続されている補助アマルガム4と、補助アマルガム4に直列接続された負特性抵抗温度係数を持つ抵抗器5にも電流が流れる。補助アマルガム4は電流が流れることによる自己発熱と、負特性抵抗温度係数を持つ抵抗器5からの輻射熱によって表面に吸着している水銀を効率良く放出することができる。従って、放電生起直後の光束立ち上がり特性を改善することができる。   In the discharge lamp shown in FIG. 4 as well, in the same way as in the first embodiment described above, when connected to the discharge lamp lighting device and lit, firstly, an electric current is passed through the filament electrode 2 and electrons that promote discharge are generated from the filament electrode. Release. At this time, a current also flows through the auxiliary amalgam 4 connected in parallel to the filament electrode 2 and the resistor 5 having a negative characteristic resistance temperature coefficient connected in series to the auxiliary amalgam 4. The auxiliary amalgam 4 can efficiently release mercury adsorbed on the surface by self-heating due to current flow and radiation heat from the resistor 5 having a negative characteristic resistance temperature coefficient. Accordingly, it is possible to improve the luminous flux rising characteristics immediately after the occurrence of discharge.

(実施例3)
図5は、本発明に係る放電ランプの第3の実施例を示すもので、放電ランプの電極部の縦断面図である。また、図6は、図5に示す放電ランプの電極部のX−X’断面図である。図5および図6において、参照符号1は透光性のガラス管バルブ、2はフィラメント電極、3はガラス管バルブ内に封入された放電媒体、4は補助アマルガム、5は負特性抵抗温度係数を持つ抵抗器、6はガラス管バルブ内に塗布された蛍光体、7はガラス管バルブを封止するマウント、8および9はフィラメント電極に接続されたリード線である。図5および図6では、補助アマルガム4と負特性抵抗温度係数を持つ抵抗器5をマウント7からほぼ同一距離の同一平面上に設けてある。従って、補助アマルガム4と負特性抵抗温度係数を持つ抵抗器5間の距離を短くすることができ、補助アマルガム4は負特性抵抗温度係数を持つ抵抗器5の輻射熱を受けやすくなるために水銀の放出が促進される。従って、放電生起直後の光束立ち上がり特性を改善することができる。
(Example 3)
FIG. 5 shows a third embodiment of the discharge lamp according to the present invention, and is a longitudinal sectional view of an electrode portion of the discharge lamp. FIG. 6 is a cross-sectional view taken along the line XX ′ of the electrode portion of the discharge lamp shown in FIG. 5 and 6, reference numeral 1 is a translucent glass tube bulb, 2 is a filament electrode, 3 is a discharge medium enclosed in the glass tube bulb, 4 is an auxiliary amalgam, and 5 is a negative characteristic resistance temperature coefficient. A resistor 6 has a phosphor coated in the glass tube bulb, 7 is a mount for sealing the glass tube bulb, and 8 and 9 are lead wires connected to the filament electrode. 5 and 6, the auxiliary amalgam 4 and the resistor 5 having a negative characteristic resistance temperature coefficient are provided on the same plane at substantially the same distance from the mount 7. Accordingly, the distance between the auxiliary amalgam 4 and the resistor 5 having the negative characteristic resistance temperature coefficient can be shortened, and the auxiliary amalgam 4 is easily subjected to the radiant heat of the resistor 5 having the negative characteristic resistance temperature coefficient. Release is accelerated. Accordingly, it is possible to improve the luminous flux rising characteristics immediately after the occurrence of discharge.

本発明は水銀または水銀化合物を使用した放電ランプに係り、特に放電生起直後の光束立ち上がり特性を改善した放電ランプに関するものであり、産業上の利用可能性がある。   The present invention relates to a discharge lamp using mercury or a mercury compound, and more particularly to a discharge lamp having improved luminous flux rising characteristics immediately after the occurrence of discharge, and has industrial applicability.

(a)は電球形蛍光ランプの一例を示す一部切欠き図、(b)は(a)の電球形蛍光ランプに用いられる本発明に係る放電ランプの一例を示す展開図である。(A) is a partially cutaway view showing an example of a bulb-type fluorescent lamp, and (b) is a development view showing an example of a discharge lamp according to the present invention used in the bulb-type fluorescent lamp of (a). 本発明に係る放電ランプの第1の実施例を示すもので、放電ランプの電極部の縦断面図である。1 shows a first embodiment of a discharge lamp according to the present invention, and is a longitudinal sectional view of an electrode portion of a discharge lamp. 負特性抵抗温度係数を持つ抵抗器5の抵抗温度特性を示すグラフである。It is a graph which shows the resistance temperature characteristic of the resistor 5 with a negative characteristic resistance temperature coefficient. 本発明に係る放電ランプの第2の実施例を示すもので、放電ランプの電極部の縦断面図である。The 2nd Example of the discharge lamp which concerns on this invention is shown, and is a longitudinal cross-sectional view of the electrode part of a discharge lamp. 本発明に係る放電ランプの第3の実施例を示すもので、放電ランプの電極部の縦断面図である。3 shows a third embodiment of the discharge lamp according to the present invention, and is a longitudinal sectional view of an electrode portion of the discharge lamp. FIG. 図5に示す放電ランプの電極部のX−X’断面図である。FIG. 6 is an X-X ′ sectional view of an electrode portion of the discharge lamp shown in FIG. 5.

符号の説明Explanation of symbols

1・・・透光性のガラス管バルブ
2・・・フィラメント電極
3・・・放電媒体
4・・・補助アマルガム
5・・・負特性抵抗温度係数を持つ抵抗器
6・・・蛍光体
7・・・マウント
8,9・・・リード線
11・・・放電ランプ
12・・・ガラスグローブ
13・・・プラスチック製ケース
14・・・口金
21,22・・・U字状ガラス管バルブ
23・・・連結部
24,25・・・電極部
26・・・細管
27・・・主アマルガム
DESCRIPTION OF SYMBOLS 1 ... Translucent glass tube bulb 2 ... Filament electrode 3 ... Discharge medium 4 ... Auxiliary amalgam 5 ... Resistor 6 with negative characteristic resistance temperature coefficient ... Phosphor 7 ..Mounts 8, 9 ... lead wire 11 ... discharge lamp 12 ... glass globe 13 ... plastic case 14 ... caps 21, 22 ... U-shaped glass tube bulb 23 ... -Connection parts 24, 25 ... Electrode part 26 ... Thin tube 27 ... Main amalgam

Claims (5)

放電媒体が封入されたガラス管バルブと、前記バルブ内に配設された電極と、前記電極の両側にそれぞれ接続されたリード線と、前記リード線に配設された前記放電媒体を吸着および放出するための金属体と、前記バルブ内に設けられ同じ電極のリード線間に接続された負特性抵抗温度係数を持つ抵抗器とを具備したことを特徴とする放電ランプ。 A glass tube bulb in which a discharge medium is sealed, an electrode arranged in the bulb, lead wires connected to both sides of the electrode, and the discharge medium arranged in the lead wire are adsorbed and released. And a resistor having a negative characteristic resistance temperature coefficient provided in the bulb and connected between lead wires of the same electrode . 前記放電媒体を吸着および放出するための金属体が前記同じ電極と前記バルブ内に設けられ前記同じ電極のリード線間に接続された負特性抵抗温度係数を持つ抵抗器との間に配設されていることを特徴とする請求項1記載の放電ランプ。 Is disposed between the resistor having a negative characteristic resistance temperature coefficient metal body is connected between the leads of the same electrode is provided in said valve and the same electrode for adsorbing and releasing said discharge medium The discharge lamp according to claim 1, wherein 前記放電媒体を吸着および放出するための金属体と負特性抵抗温度係数を持つ抵抗器とが前記リード線間に直列接続されていることを特徴とする請求項1記載の放電ランプ。 The discharge lamp according to claim 1, wherein a metal body for adsorbing and discharging the discharge medium and a resistor having a negative characteristic resistance temperature coefficient are connected in series between the lead wires. 前記放電媒体を吸着および放出するための金属体と負特性抵抗温度係数を持つ抵抗器とが前記バルブの端部からほぼ同一距離の同一平面上に配設されていることを特徴とする請求項1記載の放電ランプ。 The metal body for adsorbing and discharging the discharge medium and the resistor having a negative characteristic resistance temperature coefficient are disposed on the same plane at substantially the same distance from the end of the bulb. The discharge lamp according to 1. 内部に主アマルガムを備えたガラス管バルブと、前記バルブ内に配設された電極と、前記電極の両側にそれぞれ接続されたリード線と、前記リード線に配設された補助アマルガムと、前記バルブ内に設けられ同じ電極のリード線間に接続された負特性抵抗温度係数を持つ抵抗器とを具備したことを特徴とする放電ランプ。
A glass tube bulb having a main amalgam inside, an electrode arranged in the bulb, lead wires connected to both sides of the electrode, an auxiliary amalgam arranged in the lead wire, and the bulb And a resistor having a negative characteristic resistance temperature coefficient connected between lead wires of the same electrode provided therein.
JP2004261690A 2004-09-08 2004-09-08 Discharge lamp Expired - Fee Related JP4507773B2 (en)

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Publication number Priority date Publication date Assignee Title
JP4624337B2 (en) * 2006-11-27 2011-02-02 Necライティング株式会社 Fluorescent lamp
TW202036655A (en) * 2019-01-25 2020-10-01 日商日本光電科技股份有限公司 Mercury discharge lamp

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JPS5033904Y1 (en) * 1968-12-25 1975-10-02
JPS50138677A (en) * 1974-04-08 1975-11-05
JPS5040433Y1 (en) * 1968-08-12 1975-11-18
JPS51148Y1 (en) * 1968-12-25 1976-01-06
JPS61227358A (en) * 1985-03-30 1986-10-09 Toshiba Corp Low pressure mercury vapor discharge lamp
JPH09153341A (en) * 1995-09-29 1997-06-10 Toshiba Lighting & Technol Corp Fluorescent lamp device and luminaire
JPH1074488A (en) * 1996-08-30 1998-03-17 Matsushita Electron Corp Mercury discharge lamp device
JPH10312772A (en) * 1997-05-14 1998-11-24 Matsushita Electron Corp Low pressure mercury discharge lamp and manufacture thereof
JP2002260583A (en) * 2001-03-05 2002-09-13 Matsushita Electric Ind Co Ltd Fluorescent lamp
JP2003249192A (en) * 2002-02-27 2003-09-05 Hitachi Ltd Compact self-ballasted fluorescent lamp

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Publication number Priority date Publication date Assignee Title
JPS5040433Y1 (en) * 1968-08-12 1975-11-18
JPS5033904Y1 (en) * 1968-12-25 1975-10-02
JPS51148Y1 (en) * 1968-12-25 1976-01-06
JPS50138677A (en) * 1974-04-08 1975-11-05
JPS61227358A (en) * 1985-03-30 1986-10-09 Toshiba Corp Low pressure mercury vapor discharge lamp
JPH09153341A (en) * 1995-09-29 1997-06-10 Toshiba Lighting & Technol Corp Fluorescent lamp device and luminaire
JPH1074488A (en) * 1996-08-30 1998-03-17 Matsushita Electron Corp Mercury discharge lamp device
JPH10312772A (en) * 1997-05-14 1998-11-24 Matsushita Electron Corp Low pressure mercury discharge lamp and manufacture thereof
JP2002260583A (en) * 2001-03-05 2002-09-13 Matsushita Electric Ind Co Ltd Fluorescent lamp
JP2003249192A (en) * 2002-02-27 2003-09-05 Hitachi Ltd Compact self-ballasted fluorescent lamp

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