JP2006302589A - Compact self-ballasted fluorescent lamp - Google Patents

Compact self-ballasted fluorescent lamp Download PDF

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JP2006302589A
JP2006302589A JP2005120540A JP2005120540A JP2006302589A JP 2006302589 A JP2006302589 A JP 2006302589A JP 2005120540 A JP2005120540 A JP 2005120540A JP 2005120540 A JP2005120540 A JP 2005120540A JP 2006302589 A JP2006302589 A JP 2006302589A
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arc tube
fluorescent lamp
light emitting
tube
base
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Yoshimasa Tanabe
快全 田辺
Takahiro Konomoto
高裕 此本
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Osram Melco Ltd
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Osram Melco Ltd
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Priority to JP2005120540A priority Critical patent/JP2006302589A/en
Priority to EP06731791A priority patent/EP1873443A4/en
Priority to PCT/JP2006/307855 priority patent/WO2006115076A1/en
Publication of JP2006302589A publication Critical patent/JP2006302589A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/30Vessels; Containers
    • H01J61/33Special shape of cross-section, e.g. for producing cool spot
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/30Vessels; Containers
    • H01J61/32Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327"Compact"-lamps, i.e. lamps having a folded discharge path

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact self-ballasted fluorescent lamp capable of decreasing a temperature of a coldest point irrespective of a vertical direction of a light emitting tube, and obtaining stable output in normal lighting. <P>SOLUTION: The compact self-ballasted fluorescent lamp 1 comprises a light emitting tube 2, a stabilizer 3 for lighting the light emitting tube 2, a plate 8 for holding the light emitting tube 2 on one side and mounting the stabilizer 3 on the other side, a housing 4 for housing the stabilizer 3 and having a base 5, and an outer tube globe 6 for covering the light emitting tube 2. The compact self-ballasted fluorescent lamp 1 with mercury sealed is provided with a projected part 2a formed on a tip end 7a on an opposite side of the base 5 of the light emitting tube 2 and becoming the coldest point when the light emitting tube 2 is lightened in a mounting state with the base 5 side up, and an evacuating tube 7 which is provided for evacuating an inside of the light emitting tube 2, extends to an inside of the housing 4 by passing from the light emitting tube 2 to the plate 8, and wherein the tip end 7a becomes the coldest point when the light emitting tube 2 is lightened in the mounting state with the base 5 side down. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、アマルガムの代わりに水銀を封入して光束立ち上り特性を改善すると共に、最冷点となる箇所を口金が上になるときはランプ先端に、口金が下になるときは口金付近まで延ばした封入管の先端に形成し、口金が上になるベースアップ時と、口金が下になるベースダウン時とのいずれにおいても安定した光出力が得られる電球形蛍光ランプに関するものである。   This invention improves the luminous flux rise characteristics by enclosing mercury instead of amalgam and extending the coldest spot to the tip of the lamp when the base is up and to the vicinity of the base when the base is down. The present invention relates to a bulb-type fluorescent lamp that is formed at the tip of a sealed tube and can provide stable light output both when the base is up and when the base is down.

白熱電球に代わる光源として、ランプ効率が高く、且つ長寿命な電球形蛍光ランプが提案され、そのような電球形蛍光ランプとして、2重螺旋形状の発光管を備えたものがある。図7はそのような従来の電球形蛍光ランプの断面を示す正面図である。図に示すように、電球形蛍光ランプ1は、2重螺旋形状の発光管2と、この発光管2を点灯させるための安定器3と、安定器3を収納し且つ口金5を有するハウジング4と、発光管2を覆う外管グローブ6とを備えている。発光管2内部には、緩衝ガスとしての混合ガスの他に、光束立ち上り特性を改善するために水銀単体が封入されている(アマルガムを使用しない)。   As a light source that replaces the incandescent bulb, a bulb-type fluorescent lamp having high lamp efficiency and a long lifetime has been proposed. As such a bulb-type fluorescent lamp, there is one provided with a double spiral arc tube. FIG. 7 is a front view showing a cross section of such a conventional bulb-type fluorescent lamp. As shown in the figure, a bulb-type fluorescent lamp 1 includes a double spiral arc tube 2, a ballast 3 for lighting the arc tube 2, and a housing 4 that houses the ballast 3 and has a base 5. And an outer tube glove 6 that covers the arc tube 2. In addition to the mixed gas as the buffer gas, mercury alone is enclosed in the arc tube 2 in order to improve the luminous flux rising characteristics (no amalgam is used).

発光管2は、ガラス管の端部がプレート8に挿入されて、例えばシリコン等の接着剤によりプレート8に固着されている。   The end of the glass tube is inserted into the plate 8 and the arc tube 2 is fixed to the plate 8 with an adhesive such as silicon.

発光管2の下端部には、下方(口金5と反対方向)へと膨出する凸部2aが形成されており、この凸部2aと外管グローブ6の内壁の下端部とが、透明なシリコンからなる熱伝導性媒体15により熱的に結合されている。   A convex portion 2a bulging downward (in a direction opposite to the base 5) is formed at the lower end portion of the arc tube 2, and the convex portion 2a and the lower end portion of the inner wall of the outer tube globe 6 are transparent. They are thermally coupled by a thermally conductive medium 15 made of silicon.

凸部2aを設ける理由は、凸部2aを形成することで、凸部2a内の空間が電極間を流れる電子の軌道から離れ、凸部2a内の温度(最冷点温度)がさらに下がるからである。   The reason for providing the convex portion 2a is that by forming the convex portion 2a, the space in the convex portion 2a is separated from the trajectory of electrons flowing between the electrodes, and the temperature (cold point temperature) in the convex portion 2a further decreases. It is.

また、発光管2と外管グローブ6とを熱伝導性媒体15により熱的に結合しているのは、電球形蛍光ランプ1が点灯して発光管2の温度が上昇したときに、その熱が熱伝導性媒体15を介して外管グローブ6へと伝わり、発光管2の温度、特に発光管2の下端部にできる最冷点箇所の温度の上昇を抑制することができるからである。このようにして、発光管2をその電極を上にした状態で通常点灯させた時、発光管頂部に設けた凸部最冷点と熱伝導性媒体15により、発光管最冷点温度を低減できるものである(例えば、特許文献1参照)。
特開2004−87397号公報
In addition, the arc tube 2 and the outer tube globe 6 are thermally coupled by the heat conductive medium 15 when the light bulb-type fluorescent lamp 1 is lit and the temperature of the arc tube 2 rises. This is because it is transmitted to the outer tube globe 6 through the heat conductive medium 15 and the temperature of the arc tube 2, particularly the temperature at the coldest spot at the lower end of the arc tube 2 can be suppressed. In this way, when the arc tube 2 is normally lit with the electrode facing up, the coldest spot temperature of the arc tube is reduced by the convex coldest point provided on the top of the arc tube and the heat conductive medium 15. (See, for example, Patent Document 1).
JP 2004-87397 A

従来の電球形蛍光ランプは、発光管最冷点が発光管頂部に形成されるため、発光管を口金を上にした取付状態では、最冷点温度が低く安定した出力が得られるが、その反対の発光管を口金を下にした取付状態では、最冷点温度が上がり安定した出力が得られないという課題があった。   In the conventional bulb-type fluorescent lamp, the coldest spot of the arc tube is formed at the top of the arc tube, so that when the arc tube is mounted with the base on the top, the coldest spot temperature is low and a stable output can be obtained. When the opposite arc tube is mounted with the base down, there has been a problem that the coldest spot temperature rises and a stable output cannot be obtained.

この発明は、上記のような課題を解決するためになされたもので、発光管の上下の向きに関係なく最冷点の温度を低減でき、通常点灯時安定した出力が得られる電球形蛍光ランプを提供することを目的とする。   The present invention has been made to solve the above-described problems, and is a bulb-type fluorescent lamp that can reduce the temperature of the coldest point regardless of the vertical direction of the arc tube and can obtain a stable output during normal lighting. The purpose is to provide.

この発明に係る電球形蛍光ランプは、発光管と、この発光管を点灯させるための安定器と、前記発光管を一方の側に保持し、他方の側に安定器が取り付けられるプレートと、安定器を収納し且つ口金を有するハウジングと、発光管を覆う外管グローブとを有し、水銀を封入する電球形蛍光ランプにおいて、発光管の口金と反対側の先端に形成され、口金を上にした取付状態で発光管を点灯したとき最冷点となる凸部と、発光管の内部を排気するために設けられ、発光管からプレートを貫通してハウジング内まで延び、口金を下にした取付状態で発光管を点灯したとき先端が最冷点となる排気管とを備えたことを特徴とする。   A bulb-type fluorescent lamp according to the present invention includes an arc tube, a ballast for lighting the arc tube, a plate that holds the arc tube on one side, and a ballast is attached to the other side, In a bulb-type fluorescent lamp that contains a housing and has a base, and an outer tube glove that covers the arc tube and encloses mercury, it is formed at the tip of the arc tube opposite to the cap, with the cap facing up The projection is the coldest point when the arc tube is turned on in the mounted state, and is provided for exhausting the inside of the arc tube, extending from the arc tube through the plate into the housing, with the base down And an exhaust pipe whose tip is the coldest point when the arc tube is turned on.

この発明に係る電球形蛍光ランプは、上記構成により、発光管の上下の向きに関係なく最冷点の温度を低減でき、通常点灯時安定した出力が得られる。   With the above configuration, the bulb-type fluorescent lamp according to the present invention can reduce the temperature at the coldest point regardless of the vertical direction of the arc tube, and a stable output can be obtained during normal lighting.

実施の形態1.
図1〜5は実施の形態1を示す図で、図1は電球形蛍光ランプ1の正面図、図2は電球形蛍光ランプ1の平面図、図3は電球形蛍光ランプ1の断面を示す正面図、図4は電球形蛍光ランプ1の内部構成を示す正面図、図5は電球形蛍光ランプ1の内部構成を示す平面図である。
図において、電球形蛍光ランプ1は、2重スパイラル形状の発光管2と、この発光管2を点灯させるための安定器3(点灯回路)と、安定器3を収納し且つ口金5を有するハウジング4と、発光管2を覆う外管グローブ6とを備えている。
Embodiment 1 FIG.
1 to 5 are diagrams showing Embodiment 1, FIG. 1 is a front view of a bulb-type fluorescent lamp 1, FIG. 2 is a plan view of the bulb-type fluorescent lamp 1, and FIG. FIG. 4 is a front view showing the internal configuration of the bulb-type fluorescent lamp 1, and FIG. 5 is a plan view showing the internal configuration of the bulb-type fluorescent lamp 1.
In the figure, a bulb-type fluorescent lamp 1 includes a double spiral arc tube 2, a ballast 3 (lighting circuit) for lighting the arc tube 2, and a housing that houses the ballast 3 and has a base 5. 4 and an outer tube glove 6 that covers the arc tube 2.

発光管2の端部は、図3に示すように、プレート8に挿入されて、例えばシリコン等の接着剤によりプレート8に固着されている。プレート8の発光管2と反対側には、種々の電子部品からなる安定器3が取り付けられている。   As shown in FIG. 3, the end of the arc tube 2 is inserted into the plate 8 and fixed to the plate 8 with an adhesive such as silicon. A ballast 3 made of various electronic components is attached to the side of the plate 8 opposite to the arc tube 2.

発光管2の口金5の反対側先端には、ガラス管を膨出させた凸部2aが形成されている。凸部2aは、外管グローブ6の下端部6aと接触して熱的に結合している。凸部2aを設ける理由は、凸部2aを形成することで、凸部2a内の空間が電極間を流れる電子の軌道から離れ、凸部2a内の温度(最冷点温度)がさらに下がるからである。   A convex portion 2 a bulging the glass tube is formed at the tip of the arc tube 2 opposite to the base 5. The convex portion 2 a is in thermal contact with the lower end portion 6 a of the outer tube globe 6. The reason for providing the convex portion 2a is that by forming the convex portion 2a, the space in the convex portion 2a is separated from the trajectory of electrons flowing between the electrodes, and the temperature (cold point temperature) in the convex portion 2a further decreases. It is.

発光管2の一方の端部から、発光管2内部の排気を行うための排気管7が、プレート8を貫通してハウジング4内の安定器3を収納した空間の上部まで延出している。発光時、温度の高い発光管2から排気管7の先端7aを離すことが狙いである。   An exhaust pipe 7 for exhausting the inside of the arc tube 2 extends from one end of the arc tube 2 to the upper part of the space in which the ballast 3 in the housing 4 is accommodated through the plate 8. The aim is to separate the tip 7a of the exhaust pipe 7 from the high temperature arc tube 2 during light emission.

次に、動作を説明する。
先ず、電球形蛍光ランプ1が、口金5が上になる状態で取り付けられる場合について説明する。このとき、電球形蛍光ランプ1が点灯して発光管2の温度が上昇すると、その熱が凸部2aから直接外管グローブ6へと伝わり、発光管2の温度、特に発光管2の下端部の凸部2aにできる最冷点箇所の温度の上昇を抑制する。従って、発光管2は安定した出力が得られる。
Next, the operation will be described.
First, the case where the bulb-type fluorescent lamp 1 is mounted with the base 5 facing upward will be described. At this time, when the bulb-type fluorescent lamp 1 is turned on and the temperature of the arc tube 2 rises, the heat is directly transferred from the convex portion 2 a to the outer tube globe 6, and the temperature of the arc tube 2, particularly the lower end of the arc tube 2. The rise in temperature at the coldest spot that can be formed on the convex portion 2a is suppressed. Therefore, the arc tube 2 can obtain a stable output.

次に、電球形蛍光ランプ1が、口金5が下になる状態で取り付けられる場合について説明する。このときは、排気管7の先端7aが発光管2から離れており、温度の低い安定器3付近まで延びているので、電球形蛍光ランプ1が点灯して発光管2の温度が上昇しても、排気管7の先端7aは発光管2の他の箇所より温度が低く、そこに最冷点が形成される。そして、水銀が発光管2の下端部に位置する最冷点である排気管7の先端7aに存在するため、発光管2内の水銀蒸気圧はその温度で決定され、適正な水銀蒸気圧となり安定した出力が得られる。   Next, the case where the light bulb-type fluorescent lamp 1 is mounted with the base 5 facing down will be described. At this time, the tip 7a of the exhaust pipe 7 is separated from the arc tube 2 and extends to the vicinity of the ballast 3 having a low temperature, so that the bulb-type fluorescent lamp 1 is turned on and the temperature of the arc tube 2 is increased. However, the tip 7a of the exhaust pipe 7 has a lower temperature than other parts of the arc tube 2, and the coldest spot is formed there. And since mercury exists in the front-end | tip 7a of the exhaust pipe 7 which is the coldest point located in the lower end part of the arc_tube | light_emitting_tube 2, the mercury vapor pressure in the arc_tube 2 is determined with the temperature, and becomes an appropriate mercury vapor pressure. Stable output can be obtained.

上記のように、本実施の形態によれば、電球形蛍光ランプ1が、口金5が上になる状態で取り付けられる場合、また口金5が下になる状態で取り付けられる場合のどちらにおいても、発光管2の下端部(前者の場合は凸部2a、後者の場合は排気管7の先端7a)が最冷点になり、常に安定した出力が得られる。   As described above, according to the present embodiment, both the bulb-type fluorescent lamp 1 emits light when it is mounted with the base 5 facing up and when the base 5 is mounted with the base 5 facing down. The lower end of the tube 2 (the convex portion 2a in the former case and the tip 7a of the exhaust tube 7 in the latter case) becomes the coldest point, and a stable output is always obtained.

実施の形態2.
図6は実施の形態2を示す図で、電球形蛍光ランプ1の断面を示す正面図である。
実施の形態1では、凸部2aを外管グローブ6に接触させて、凸部2aと外管グローブ6とを熱的に結合したが、図6に示すように、凸部2a付近の外管グローブ6に開口部6bを設けて、外管グローブ6に外から入る空気により凸部2aを冷却して、最冷点箇所の温度の上昇を抑制するようにしてもよい。
Embodiment 2. FIG.
FIG. 6 is a front view showing a section of the bulb-type fluorescent lamp 1 according to the second embodiment.
In Embodiment 1, the convex portion 2a is brought into contact with the outer tube globe 6 and the convex portion 2a and the outer tube globe 6 are thermally coupled. However, as shown in FIG. 6, the outer tube near the convex portion 2a is used. An opening 6 b may be provided in the globe 6, and the convex portion 2 a may be cooled by air entering the outer tube globe 6 from the outside to suppress an increase in temperature at the coldest spot.

本実施の形態では、電球形蛍光ランプ1が点灯して発光管2の温度が上昇すると、凸部2aは、凸部2a付近の外管グローブ6に開けられた開口部6bから侵入する冷たい空気に冷却され最冷点箇所の温度の上昇が抑制されるので、発光管2は安定した出力が得られる。   In the present embodiment, when the bulb-type fluorescent lamp 1 is turned on and the temperature of the arc tube 2 rises, the convex portion 2a has cold air entering from the opening 6b opened in the outer tube globe 6 near the convex portion 2a. Therefore, the arc tube 2 can obtain a stable output.

以上の説明は、発光管2は2重スパイラル形状のものについて行ったが、それに限定されない。屈曲した形状のもの等、何でも良い。   In the above description, the arc tube 2 has a double spiral shape, but is not limited thereto. Anything such as a bent shape may be used.

排気管7の先端7aが、ハウジング4の安定器3を収納する空間の上部に位置するものを示したが、ハウジング4の安定器3を収納する空間内であれば何処でもよい。   The tip 7a of the exhaust pipe 7 is shown in the upper part of the space in which the ballast 3 of the housing 4 is housed. However, it may be anywhere in the space in which the ballast 3 of the housing 4 is housed.

また、発光管2の凸部2aを冷却する方法として、凸部2aを外管グローブ6に接触させる方法、及び凸部2a付近の外管グローブ6に開口部6bを開ける方法を示したが、他の方法でもよい。   Moreover, as a method of cooling the convex portion 2a of the arc tube 2, a method of bringing the convex portion 2a into contact with the outer tube globe 6 and a method of opening the opening 6b in the outer tube globe 6 in the vicinity of the convex portion 2a have been shown. Other methods may be used.

実施の形態1を示す図で、電球形蛍光ランプ1の正面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1, and is a front view of the lightbulb-type fluorescent lamp 1. FIG. 実施の形態1を示す図で、電球形蛍光ランプ1の平面図である。FIG. 3 is a diagram showing the first embodiment, and is a plan view of the light bulb-type fluorescent lamp 1. 実施の形態1を示す図で、電球形蛍光ランプ1の断面を示す正面図である。FIG. 2 is a diagram showing the first embodiment and is a front view showing a cross section of the bulb-type fluorescent lamp 1. 実施の形態1を示す図で、電球形蛍光ランプ1の内部構成を示す正面図である。FIG. 2 shows the first embodiment and is a front view showing an internal configuration of the light bulb-type fluorescent lamp 1. 実施の形態1を示す図で、電球形蛍光ランプ1の内部構成を示す平面図である。FIG. 2 is a diagram showing the first embodiment and is a plan view showing an internal configuration of the light bulb-type fluorescent lamp 1. 実施の形態2を示す図で、電球形蛍光ランプ1の断面を示す正面図である。FIG. 6 is a diagram showing the second embodiment and is a front view showing a cross section of the bulb-type fluorescent lamp 1. 従来の電球形蛍光ランプ1の断面を示す正面図である。It is a front view which shows the cross section of the conventional light bulb-type fluorescent lamp.

符号の説明Explanation of symbols

1 電球形蛍光ランプ、2 発光管、2a 凸部、3 安定器、4 ハウジング、5 口金、6 外管グローブ、6a 下端部、6b 開口部、7 排気管、7a 先端、8 プレート、15 熱伝導性媒体。   DESCRIPTION OF SYMBOLS 1 Light bulb type fluorescent lamp, 2 Light emission tube, 2a Convex part, 3 Ballast, 4 Housing, 5 base, 6 Outer tube glove, 6a Lower end part, 6b Opening part, 7 Exhaust pipe, 7a Tip, 8 Plate, 15 Thermal conduction Sex medium.

Claims (1)

発光管と、この発光管を点灯させるための安定器と、前記発光管を一方の側に保持し、他方の側に前記安定器が取り付けられるプレートと、前記安定器を収納し且つ口金を有するハウジングと、前記発光管を覆う外管グローブとを有し、水銀を封入する電球形蛍光ランプにおいて、
前記発光管の前記口金と反対側の先端に形成され、前記口金を上にした取付状態で前記発光管を点灯したとき最冷点となる凸部と、
前記発光管の内部を排気するために設けられ、前記発光管から前記プレートを貫通して前記ハウジング内まで延び、前記口金を下にした取付状態で前記発光管を点灯したとき先端が最冷点となる排気管とを備えたことを特徴とする電球形蛍光ランプ。
An arc tube, a ballast for lighting the arc tube, a plate that holds the arc tube on one side and the ballast is mounted on the other side, and contains the ballast and has a base In a bulb-type fluorescent lamp having a housing and an outer tube globe covering the arc tube, and enclosing mercury,
A convex portion that is formed at the tip of the arc tube opposite to the base, and that becomes the coldest point when the arc tube is turned on with the base facing up,
Provided to evacuate the inside of the arc tube, extending from the arc tube to the housing through the plate, and when the arc tube is turned on with the base down, the tip is the coldest point A bulb-type fluorescent lamp characterized by comprising an exhaust pipe.
JP2005120540A 2005-04-19 2005-04-19 Compact self-ballasted fluorescent lamp Pending JP2006302589A (en)

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JP2005120540A JP2006302589A (en) 2005-04-19 2005-04-19 Compact self-ballasted fluorescent lamp
EP06731791A EP1873443A4 (en) 2005-04-19 2006-04-13 Bulb type fluorescent lamp
PCT/JP2006/307855 WO2006115076A1 (en) 2005-04-19 2006-04-13 Bulb type fluorescent lamp

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JP2009252365A (en) * 2008-04-01 2009-10-29 Nec Lighting Ltd Fluorescent lamp and lighting control method thereof
JP2010015828A (en) * 2008-07-03 2010-01-21 Nec Lighting Ltd Fluorescent lamp with built-in ballast and lighting fixture
WO2010122737A1 (en) * 2009-04-20 2010-10-28 パナソニック株式会社 Arc tube, discharge lamp, and illumination device
JP2010251254A (en) * 2009-04-20 2010-11-04 Panasonic Corp Light emitting tube, and discharge lamp
JP2011228039A (en) * 2010-04-16 2011-11-10 Nec Lighting Ltd Self-ballasted fluorescent lamp, and lighting fixture

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DE102008015194A1 (en) * 2008-03-20 2009-09-24 Osram Gesellschaft mit beschränkter Haftung Discharge vessel for a discharge lamp and discharge lamp
CN103531433A (en) * 2012-07-01 2014-01-22 盐城市九龙照明电器有限公司 Large-power energy-saving fluorescent lamp for road

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JP2009252365A (en) * 2008-04-01 2009-10-29 Nec Lighting Ltd Fluorescent lamp and lighting control method thereof
JP2010015828A (en) * 2008-07-03 2010-01-21 Nec Lighting Ltd Fluorescent lamp with built-in ballast and lighting fixture
WO2010122737A1 (en) * 2009-04-20 2010-10-28 パナソニック株式会社 Arc tube, discharge lamp, and illumination device
JP2010251254A (en) * 2009-04-20 2010-11-04 Panasonic Corp Light emitting tube, and discharge lamp
JP2011228039A (en) * 2010-04-16 2011-11-10 Nec Lighting Ltd Self-ballasted fluorescent lamp, and lighting fixture

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EP1873443A1 (en) 2008-01-02
EP1873443A4 (en) 2009-06-17
WO2006115076A1 (en) 2006-11-02

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