WO2004081969A1 - A helical type fluorescent lamp tube - Google Patents

A helical type fluorescent lamp tube Download PDF

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Publication number
WO2004081969A1
WO2004081969A1 PCT/CN2004/000180 CN2004000180W WO2004081969A1 WO 2004081969 A1 WO2004081969 A1 WO 2004081969A1 CN 2004000180 W CN2004000180 W CN 2004000180W WO 2004081969 A1 WO2004081969 A1 WO 2004081969A1
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WO
WIPO (PCT)
Prior art keywords
tube
cold end
lamp tube
lamp
glass tube
Prior art date
Application number
PCT/CN2004/000180
Other languages
French (fr)
Chinese (zh)
Inventor
Tian Zai Huang
Original Assignee
Tian Zai Huang
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Filing date
Publication date
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Publication of WO2004081969A1 publication Critical patent/WO2004081969A1/en

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Classifications

    • 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
    • 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
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path

Definitions

  • the utility model relates to a spiral fluorescent lamp tube.
  • the arc starts with one electrode, rises in a spiral manner to the top, and then spirals downward. Falling into another spiral coil that is 180 ° out of phase with the starting point, the arc length is 4 long, which affects the rapid establishment of the luminous flux. Because the spiral fluorescent lamp fails to solve the problems of the cold junction temperature and the excessively long arc, which affects the rapid establishment of the luminous flux, it has limited its wider application in the lighting field.
  • the purpose of the utility model is to provide a spiral fluorescent tube with a cold amalgam connection type at the top position range of the spiral fluorescent tube.
  • the temperature of the cold end of the lamp is controlled in the best condition.
  • a glass tube is connected to the position of the top 2 of the spiral fluorescent tube 1 to become a connected cold end 3.
  • One end of the cold end 3 communicates with the top 2 and the auxiliary amalgam 6 to which the guide wire 8 is connected is placed in the lamp tube of the fluorescent lamp tube top 2 through the glass tube of the cold end 3, and the guide wire connected to the auxiliary amalgam 6 8 is fixed next to the glass tube of the cold end 3, and then the other end 5 of the glass tube of the cold end 3 is closed.
  • the diameter and the length of the glass tube forming the connected cold end 3 are determined based on the shape and power of the fluorescent tube.
  • the utility model has the following advantages: When the lamp tube takes off, the arc (high temperature) in the column area warms the auxiliary amalgam 6 arranged in the top 2 tube of the fluorescent lamp 1, and does not need to wait for mercury at both ends to release mercury. When the atoms are gathered, the top 2 of the fluorescent lamp 1 can be lit at the same time, and the luminous flux can be established relatively quickly, thereby avoiding the phenomenon that the luminous flux of the existing spiral fluorescent lamp is relatively slow. At the same time, due to the working voltage (lamp voltage) of the fluorescent lamp
  • the glass tubes at the cold end are designed with different tube diameters and different lengths, so that the cold end glass in the tube is controlled at the optimal temperature state. Therefore, the mercury pressure in the lamp tube is controlled to achieve the best working state, and can be less affected by temperature changes, thereby effectively ensuring the consistency of lamp power and light efficiency to meet the requirements of practical applications. .
  • FIG. 1 is a schematic structural diagram of a spiral fluorescent tube with an auxiliary amalgam connected cold end.
  • FIG. 2 is a developed view A in a schematic structural diagram of a spiral fluorescent tube with a cold-junction connecting auxiliary amalgam.
  • one end of the glass tube of the cold end 3 is placed on the top 2 position of the spiral fluorescent tube 1, and the connection portion 4 of the light tube is punched, and the cold end tube 3 and the light tube 1 are closed and connected. Make sure that the glass tube at the cold end 3 and the light tube 1 are unblocked.
  • FIG. 2 is a development view of A in FIG. 1.
  • the auxiliary amalgam 6 is connected to the guide wire 8 through the connection point 7, the auxiliary amalgam 6 is placed in the lamp tube 2 on the top 2 of the spiral fluorescent lamp tube 1, and the guide wire 8 is placed in the glass tube of the connected cold end 3.
  • the other end 5 of the connected cold end 3 glass tube is closed. Since the important photoelectric parameters such as the working voltage (lamp voltage) of the fluorescent lamp are closely related to the mercury pressure in the tube, the optimal value of the mercury pressure in the tube depends on the temperature of the lowest temperature (commonly known as the cold end) of the glass tube in the lamp. Therefore, controlling the temperature of the cold end is equivalent to controlling the pressure of mercury in the lamp.
  • the connected cold end 3 glass tube is not only placed in the top 2 position range of the spiral fluorescent tube 1 but also in the middle position of the tube. In this way, no matter the temperature of the tube itself or the ambient temperature of the tube The change in the temperature of the cold end is relatively small, thereby ensuring the temperature of the cold end and the optimal value of the mercury pressure in the lamp, thereby solving the problem of the decrease in lamp power and current caused by the change of the temperature of the cold end.
  • the main amalgam's role is to control the mercury gas pressure in the tube, so that it always stabilizes the equilibrium mercury gas pressure near the optimal residual gas pressure in a wide high temperature region.
  • the role of the amalgam is the "transition warehouse of mercury atoms
  • the "reservoir” absorbs mercury atoms when the lamp is turned off, making the equilibrium mercury pressure in the lamp very low. After the lamp starts, the arc in the positive column (high temperature) warms the auxiliary mercury set in the top 2 of the spiral fluorescent lamp 1 Qi 6. Mercury release does not need to wait for mercury atoms at both ends to gather, and the top 2 of the spiral fluorescent lamp 1 can light up at the same time, thus accelerating the establishment of the spiral fluorescent light flux.

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  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)

Abstract

The present utility model discloses a helical type fluorescent lamp tube, a connection type cold end (3) with an auxiliary amalgam (6) is placed on the top (2) of a lamp tube and is comprised of one glass tube. One end of the connection type cold end is connected to the lamp tube (1) , the auxiliary amalgam (6) is disposed on the top (2) inside the lamp tube through the connection type cold end (3) and is held by a conductor wire ( 8) , and the other end of the connection type cold end ( 3) is closed. The connection type cold end (3) independently-placed according to the present utility model (3) may be in an optimal temperature and position, so that the gas pressure of mercury in the lamp tube is adjusted to an optimal state. The placement of the auxiliary amalgam (6) effectively accelerates establishment of luminous flux in the lamp tube, thereby satisfies the application of the helical type fluorescent lamp in the lighting field with larger range.

Description

一种螺旋型荧光灯管 技术领域  TECHNICAL FIELD
本实用新型涉及一种螺旋型荧光灯管。  The utility model relates to a spiral fluorescent lamp tube.
背景技术 Background technique
紧凑型荧光灯自 20世纪 80年代发明以来， 由于其光效高、 寿命长、 结构紧凑、 节能等特点， 已得到大力推广。 尤其是螺旋型荧光灯管, 由于结构更为紧凑、 牢固、 光 损耗减少和优良的配光曲线分布等优点， 更是成为室内外照明的主要光源之一。 但由于 结构紧凑， 使灯管电流密度上升， 从而使电子密度上升， 造成管温上升， 灯管内的汞气 压偏离了冷端的最佳数值,使灯功率和流明均有明显下降，尤其在全封闭的灯罩内工作 , 其灯功率和流明下降得更加厉害， 达 20%以上。 同时， 在螺旋型荧光灯的结构中， 电弧 以一个电极出发， 以螺旋方式上升， 直到顶部， 然后螺旋向下。 落到正对着出发点相位 相差 180° 的另一个螺旋的线圈中， 电弧长度 4艮长， 因而影响了光通量的迅速建立。 由 于螺旋型荧光灯未能艮好地解决冷端温度和电弧过长影响光通量迅速建立的问题， 因而 限制了其在照明领域更大范围的应用。  Since the invention of compact fluorescent lamps in the 1980s, they have been vigorously promoted due to their high light efficiency, long life, compact structure, and energy saving. In particular, spiral fluorescent tubes have become one of the main light sources for indoor and outdoor lighting due to their advantages such as more compact structure, firmness, reduced light loss, and excellent light distribution curve distribution. However, due to the compact structure, the current density of the lamp tube is increased, and the electron density is increased, which causes the tube temperature to rise. The mercury pressure in the lamp tube deviates from the optimal value of the cold end, which significantly reduces the lamp power and lumen, especially in the whole Working in a closed lampshade, its lamp power and lumen have dropped even more, reaching more than 20%. At the same time, in the structure of the spiral fluorescent lamp, the arc starts with one electrode, rises in a spiral manner to the top, and then spirals downward. Falling into another spiral coil that is 180 ° out of phase with the starting point, the arc length is 4 long, which affects the rapid establishment of the luminous flux. Because the spiral fluorescent lamp fails to solve the problems of the cold junction temperature and the excessively long arc, which affects the rapid establishment of the luminous flux, it has limited its wider application in the lighting field.
实用新型内容 Utility model content
本实用新型的目的在于提供一种在螺旋型荧光灯管顶部位置范围增设一个带辅汞 齐连接式冷端的螺旋型荧光灯管，使灯管起跳后加速灯管光通量建立并在灯管正常工作 后使灯管冷端温度控制在最佳状态。  The purpose of the utility model is to provide a spiral fluorescent tube with a cold amalgam connection type at the top position range of the spiral fluorescent tube. The temperature of the cold end of the lamp is controlled in the best condition.
本实用新型的目的可以通过以下的技术措施来实现：在螺旋型荧光灯管 1的顶部 2 位置范围， 连接一支玻璃管， 成为连接式冷端 3。 该冷端 3的一端与顶部 2连通， 并将 已连接有导丝 8的辅汞齐 6通过冷端 3的玻璃管放置在荧光灯管顶部 2的灯管内，辅汞 齐 6连接的导丝 8则紧靠冷端 3玻璃管内作固定作用， 然后将冷端 3的玻璃管另一端 5 作封闭处理。 构成连接式冷端 3玻璃管的直径大小、 管长度的长短， 是根据荧光灯管的 形状和功率来决定。 本实用新型与现有技术相比具有以下优点： 当灯管起跳后正柱区的 电弧（温度很高）加温设置在荧光灯 1顶部 2管内的辅汞齐 6 , 释汞无须等到两端的汞 原子汇集， 荧光灯 1顶部 2即能同时亮起来， 能比较迅速地建立光通量， 从而避免现有 螺旋型荧光灯管光通量建立较慢的现象。 同时， 由于荧光灯的工作电压（灯管电压）发  The object of the present invention can be achieved by the following technical measures: a glass tube is connected to the position of the top 2 of the spiral fluorescent tube 1 to become a connected cold end 3. One end of the cold end 3 communicates with the top 2 and the auxiliary amalgam 6 to which the guide wire 8 is connected is placed in the lamp tube of the fluorescent lamp tube top 2 through the glass tube of the cold end 3, and the guide wire connected to the auxiliary amalgam 6 8 is fixed next to the glass tube of the cold end 3, and then the other end 5 of the glass tube of the cold end 3 is closed. The diameter and the length of the glass tube forming the connected cold end 3 are determined based on the shape and power of the fluorescent tube. Compared with the prior art, the utility model has the following advantages: When the lamp tube takes off, the arc (high temperature) in the column area warms the auxiliary amalgam 6 arranged in the top 2 tube of the fluorescent lamp 1, and does not need to wait for mercury at both ends to release mercury. When the atoms are gathered, the top 2 of the fluorescent lamp 1 can be lit at the same time, and the luminous flux can be established relatively quickly, thereby avoiding the phenomenon that the luminous flux of the existing spiral fluorescent lamp is relatively slow. At the same time, due to the working voltage (lamp voltage) of the fluorescent lamp
—1— -1-
确 认 本 光效率等重要电参数， 均与管内汞气压关系密切， 而管内汞气压的具体值， 取决于灯管 内玻璃管温度最低处（俗称冷端）的温度， 因此， 控制冷端的温度就等于控制了灯管内 的汞气压。 对于螺旋型荧光灯管， 往往汞气压太高而使光效显著下降， 现时技术的荧光 灯管冷端的设置， 只是随意地在顶部或阴极部位设置， 因而造成灯功率和流明受温度影 响而下降的不良现象。 而人为地设置了一个冷端， 根据螺旋型荧光灯的不同形状和不同 功率， 冷端的玻璃管采用不同管径和不同长度的设计， 使灯管内的冷端玻璃控制在最佳 的温度状态， 从而控制了灯管内的汞气压， 以达到最佳的工作状态， 并能较小地受温度 变化的影响， 从而有效地保证了灯功率和光效的一致性， 以满足实际应用场合的使用要 求。 Confirm this Important electrical parameters such as light efficiency are closely related to the mercury pressure in the tube, and the specific value of the mercury pressure in the tube depends on the temperature of the lowest temperature (commonly known as the cold end) of the glass tube in the lamp. Therefore, controlling the temperature of the cold end is equivalent to controlling The pressure of mercury in the lamp. For spiral fluorescent tubes, the mercury pressure is often too high and the light efficiency is significantly reduced. At present, the cold end of the fluorescent tube is only set at the top or the cathode, so the lamp power and lumens are affected by the temperature and decrease. phenomenon. A cold end is set artificially. According to the different shapes and different powers of spiral fluorescent lamps, the glass tubes at the cold end are designed with different tube diameters and different lengths, so that the cold end glass in the tube is controlled at the optimal temperature state. Therefore, the mercury pressure in the lamp tube is controlled to achieve the best working state, and can be less affected by temperature changes, thereby effectively ensuring the consistency of lamp power and light efficiency to meet the requirements of practical applications. .
附图说明 BRIEF DESCRIPTION OF THE DRAWINGS
下面结合附图和具体实施例对本卖.用新型作进一步的说明。  In the following, the present invention will be further described with reference to the drawings and specific embodiments.
图 1为带辅汞齐连接式冷端的螺旋型荧光灯管的结构示意图。  FIG. 1 is a schematic structural diagram of a spiral fluorescent tube with an auxiliary amalgam connected cold end.
图 2为带辅汞齐连接式冷端的螺旋型荧光灯管的结构示意图中的 A展开图。  FIG. 2 is a developed view A in a schematic structural diagram of a spiral fluorescent tube with a cold-junction connecting auxiliary amalgam.
具体实施方式 detailed description
如图 1所示， 将冷端 3玻璃管的一端放在螺旋型荧光灯管 1的顶部 2位置范围， 把灯管连接部位 4打孔后将冷端管 3与灯管 1封闭连接，连接时应确保冷端 3的玻璃管 与灯管 1畅通。  As shown in FIG. 1, one end of the glass tube of the cold end 3 is placed on the top 2 position of the spiral fluorescent tube 1, and the connection portion 4 of the light tube is punched, and the cold end tube 3 and the light tube 1 are closed and connected. Make sure that the glass tube at the cold end 3 and the light tube 1 are unblocked.
图 2是图 1中 A的展开图。辅汞齐 6通过连接处 7与导丝 8进行连接后， 辅汞齐 6 放置在螺旋型荧光灯管 1的顶部 2的灯管内， 导丝 8放置在连接式冷端 3的玻璃管内， 用于固定辅汞齐 6。 连接式冷端 3玻璃管的另一端 5进行封闭处理。 由于荧光灯的工作 电压（灯管电压）发光效率等重要光电参数均与管内汞气压关系密切， 而管内汞气压的 最佳值， 取决于灯管内玻璃管温度最低处（俗称冷端）的温度， 因此， 控制冷端的温度 就等于控制了灯管内的汞气压。 而连接式冷端 3的玻璃管不但放置在在螺旋型荧光灯管 1的顶部 2位置范围， 并且是放置在灯管的中间位置， 这样， 无论是灯管自身温度或者 是灯管使用的环境温度对冷端温度的变化相对不大， 从而保证了冷端的温度， 亦保证了 灯管内的汞气压最佳值， 因而解决了由于冷端温度变化而引起的灯功率和电流下降的存 在问题。 在荧光灯管中， 主汞齐的作用是控制管内汞气压， 使之在较宽的高温区域内始 终使平衡汞气压稳定在最佳的残留气体压强附近。 而辅汞齐的作用是汞原子的 "中转仓 库"， 熄灯时吸收汞原子， 使灯管内的平衡汞气压很低。 灯管启跳后， 正柱区的电弧（温 度很高） 加温设置在螺旋型荧光灯 1顶部 2管内的辅汞齐 6 , 释汞无须等到两端的汞原 子汇集， 螺旋型荧光灯 1的顶部 2即能同时亮起来， 因而加速了螺旋型荧光灯光通量的 建立。 FIG. 2 is a development view of A in FIG. 1. After the auxiliary amalgam 6 is connected to the guide wire 8 through the connection point 7, the auxiliary amalgam 6 is placed in the lamp tube 2 on the top 2 of the spiral fluorescent lamp tube 1, and the guide wire 8 is placed in the glass tube of the connected cold end 3. In fixed auxiliary amalgam 6. The other end 5 of the connected cold end 3 glass tube is closed. Since the important photoelectric parameters such as the working voltage (lamp voltage) of the fluorescent lamp are closely related to the mercury pressure in the tube, the optimal value of the mercury pressure in the tube depends on the temperature of the lowest temperature (commonly known as the cold end) of the glass tube in the lamp. Therefore, controlling the temperature of the cold end is equivalent to controlling the pressure of mercury in the lamp. The connected cold end 3 glass tube is not only placed in the top 2 position range of the spiral fluorescent tube 1 but also in the middle position of the tube. In this way, no matter the temperature of the tube itself or the ambient temperature of the tube The change in the temperature of the cold end is relatively small, thereby ensuring the temperature of the cold end and the optimal value of the mercury pressure in the lamp, thereby solving the problem of the decrease in lamp power and current caused by the change of the temperature of the cold end. In fluorescent lamp tubes, the main amalgam's role is to control the mercury gas pressure in the tube, so that it always stabilizes the equilibrium mercury gas pressure near the optimal residual gas pressure in a wide high temperature region. And the role of the amalgam is the "transition warehouse of mercury atoms The "reservoir" absorbs mercury atoms when the lamp is turned off, making the equilibrium mercury pressure in the lamp very low. After the lamp starts, the arc in the positive column (high temperature) warms the auxiliary mercury set in the top 2 of the spiral fluorescent lamp 1 Qi 6. Mercury release does not need to wait for mercury atoms at both ends to gather, and the top 2 of the spiral fluorescent lamp 1 can light up at the same time, thus accelerating the establishment of the spiral fluorescent light flux.

Claims

权 利 要 求 Rights request
1. 一种螺旋型荧光灯管， 其特征在于在螺旋型荧光灯管 1的顶部 2位置范围增加 一个带辅汞齐 6的连接式冷端 3; 该冷端 3是由一支玻璃管构成， 其中玻璃管的一端放 在螺旋型荧光灯管 1的顶部 2位置范围， 把灯管连接部位 4打孔后将冷端管 3与灯管 1 封闭连接， 连接时应确保冷端 3的玻璃管与灯管 1畅通； 辅汞齐 6与导丝 8连接， 其导 丝 8安放在冷端 3的玻璃管内，起固定作用，冷端 3的玻璃管的另一端 5进行封闭处理。  1. A spiral fluorescent lamp tube, characterized in that a connected cold end 3 with auxiliary amalgam 6 is added to the top 2 position range of the spiral fluorescent lamp tube 1; the cold end 3 is composed of a glass tube, wherein One end of the glass tube is placed on the top 2 position range of the spiral fluorescent light tube 1. After the hole 4 of the light tube is punched, the cold end tube 3 and the light tube 1 are closed and connected. When connecting, the glass tube of the cold end 3 and the lamp should be ensured. The tube 1 is unblocked; the auxiliary amalgam 6 is connected to the guide wire 8, and the guide wire 8 is placed in the glass tube of the cold end 3 to perform a fixing function. The other end 5 of the glass tube of the cold end 3 is closed.
2. 根据权利要求 1所述的螺旋型荧光灯管， 其特征在于构成连接式冷端 3的玻璃 管的直径大小以及管的长度， 是根据螺旋型荧光灯管的形状和功率决定。  2. The spiral fluorescent tube according to claim 1, wherein the diameter of the glass tube and the length of the glass tube forming the connected cold end 3 are determined according to the shape and power of the spiral fluorescent tube.
3. 根据权利要求 1、 2所述的螺旋型荧光灯管， 其特征在于构成连接式冷端 3的 玻璃管可以采用透明的玻璃管， 亦可以采用已涂上荧光粉的粉管。  3. The spiral fluorescent lamp tube according to claim 1, wherein the glass tube constituting the connected cold end 3 can be a transparent glass tube or a powder tube coated with phosphor powder.
4. 根据权利要求 1、 2、 3所述的螺旋型荧光灯管， 其特征在于连接式冷端 3的玻 璃管内也可以不放置辅汞齐 6， 构成带连接式冷端螺旋型荧光灯管。  4. The spiral fluorescent tube according to claim 1, 2 or 3, characterized in that the auxiliary cold amalgam 6 may not be placed in the glass tube of the connected cold end 3 to form a spiral fluorescent tube with a connected cold end.
PCT/CN2004/000180 2003-03-11 2004-03-08 A helical type fluorescent lamp tube WO2004081969A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU032241437U CN2604000Y (en) 2003-03-11 2003-03-11 Spiral fluorescent tube
CN03224143.7 2003-03-11

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WO2004081969A1 true WO2004081969A1 (en) 2004-09-23

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WO2007012467A3 (en) * 2005-07-27 2008-08-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Low-pressure gas discharge lamp with a reduced argon proportion in the gas filling
WO2009092497A1 (en) * 2008-01-24 2009-07-30 Osram Gesellschaft mit beschränkter Haftung Discharge vessel for a discharge lamp and discharge lamp having such a discharge vessel

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CN100444304C (en) * 2003-03-11 2008-12-17 广州新阳照明电器有限公司 Spiral fluorescent light tube
CN100423174C (en) * 2004-07-08 2008-10-01 利胜电光源（厦门）有限公司 Fluorescent lamp
CN100423171C (en) * 2004-07-08 2008-10-01 利胜电光源（厦门）有限公司 Compact type fluorescent lamp
US8378564B2 (en) 2010-06-09 2013-02-19 General Electric Company Positioning of auxiliary amalgam

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US5680005A (en) * 1995-03-31 1997-10-21 General Electric Company Phosphor distribution for helical compact fluorescent lamp
CN2364551Y (en) * 1999-02-12 2000-02-16 马勤 Cold cathode tube with cold end
CN1310466A (en) * 2001-02-28 2001-08-29 葛世潮 Great-power fast-starting cold cathode fluorescent lamp
CN1330390A (en) * 2001-07-12 2002-01-09 张苑岳 Cold-cathode fluorescent lamp
CN2593353Y (en) * 2002-04-29 2003-12-17 上海翔山实业有限责任公司 Amalgam-built-in dual-spiral fluorescent lamp
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005101453A2 (en) * 2004-04-14 2005-10-27 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mbh Gas discharge lamp comprising a helicoid discharge tube and an inner tube piece
WO2005101453A3 (en) * 2004-04-14 2006-03-09 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Gas discharge lamp comprising a helicoid discharge tube and an inner tube piece
US7876052B2 (en) 2004-04-14 2011-01-25 Osram Gesellschaft Mit Beschraenkter Haftung Gas discharge lamp comprising a helicoid discharge tube and an inner tube piece
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WO2009092497A1 (en) * 2008-01-24 2009-07-30 Osram Gesellschaft mit beschränkter Haftung Discharge vessel for a discharge lamp and discharge lamp having such a discharge vessel

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