JP4798009B2 - Electrodeless discharge lamp apparatus and lighting fixture - Google Patents

Electrodeless discharge lamp apparatus and lighting fixture Download PDF

Info

Publication number
JP4798009B2
JP4798009B2 JP2007016698A JP2007016698A JP4798009B2 JP 4798009 B2 JP4798009 B2 JP 4798009B2 JP 2007016698 A JP2007016698 A JP 2007016698A JP 2007016698 A JP2007016698 A JP 2007016698A JP 4798009 B2 JP4798009 B2 JP 4798009B2
Authority
JP
Japan
Prior art keywords
core
discharge lamp
bending
electrodeless discharge
tube body
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.)
Expired - Fee Related
Application number
JP2007016698A
Other languages
Japanese (ja)
Other versions
JP2008186611A (en
Inventor
歩 佐藤
元洋 齋見
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Electric Works Co Ltd
Original Assignee
Panasonic Corp
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Works Ltd filed Critical Panasonic Corp
Priority to JP2007016698A priority Critical patent/JP4798009B2/en
Publication of JP2008186611A publication Critical patent/JP2008186611A/en
Application granted granted Critical
Publication of JP4798009B2 publication Critical patent/JP4798009B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Description

本発明は、バルブに封入された放電ガスを電磁誘導によって励起発光させる無電極放電灯装置および照明装置に関するものである。   The present invention relates to an electrodeless discharge lamp device and an illumination device that excites and emits a discharge gas sealed in a bulb by electromagnetic induction.

図６に示すように、従来の無電極放電灯装置１００は、透光性材料により閉ループ形状に形成され、内部に放電ガスが封入されたバルブ１０１と、バルブ１０１の略中心軸上に配設されるとともに少なくとも一部がバルブ１０１の内側に挿通された空心コイルからなる誘導コイル１０３を有しており、外部から高周波電流が供給されている。バルブ１０１はガラス製であって、矩形枠形の閉ループ形状に形成され、リング状コア１０５を貫通している。このリング状コア１０５には、補助誘導コイル１０４が巻回されている。誘導コイル１０３はバルブ１０１の略中心軸上、すなわちバルブ１０１の貫通孔１０１ａの略中心上に挿通されている。なお、誘導コイル１０３ならびに補助誘導コイル１０４はそれぞれ点灯回路１０６、１０７と接続されており、高周波電流が通電されている（例えば特許文献１参照）。
特開２００３−８６１４５号公報（図５） As shown in FIG. 6, a conventional electrodeless discharge lamp device 100 is formed in a closed loop shape with a light-transmitting material, and is disposed on a substantially central axis of the bulb 101 with a discharge gas sealed therein. In addition, at least a part of the induction coil 103 is an air-core coil inserted into the bulb 101, and a high-frequency current is supplied from the outside. The bulb 101 is made of glass, is formed in a rectangular frame-shaped closed loop shape, and penetrates the ring-shaped core 105. An auxiliary induction coil 104 is wound around the ring-shaped core 105. The induction coil 103 is inserted substantially on the central axis of the valve 101, that is, substantially on the center of the through hole 101a of the valve 101. Note that the induction coil 103 and the auxiliary induction coil 104 are connected to the lighting circuits 106 and 107, respectively, and a high-frequency current is applied (see, for example, Patent Document 1).
Japanese Patent Laying-Open No. 2003-86145 (FIG. 5)

しかしながら、前述した特許文献１に記載の従来の無電極放電灯装置１００においては、湾曲管体であるバルブ１０１は、一対の直線部の端面同士を接合して無端管状の直線部としているため、バルブ１０１の直線部の中央部が接合部となる。この接合部は、湾曲管体の直線部の端部における内周面の蛍光体を剥離して設けられているため、バルブ１０１の発光効率が低下するという問題があった。また、接合部を隠すためにリング状コア１０５が設けられており、リング状コア１０５が発光を二分するが、これを補うようにするための器具設計が難しく、製造効率も悪いという問題があった。   However, in the conventional electrodeless discharge lamp device 100 described in Patent Document 1 described above, the bulb 101, which is a curved tubular body, joins the end surfaces of a pair of straight portions to form an endless tubular straight portion. A central portion of the straight portion of the valve 101 is a joint portion. Since this joining portion is provided by peeling off the phosphor on the inner peripheral surface at the end of the straight portion of the curved tube, there is a problem that the luminous efficiency of the bulb 101 is lowered. In addition, a ring-shaped core 105 is provided to conceal the joint, and the ring-shaped core 105 bisects light emission, but there is a problem in that it is difficult to design an instrument to make up for this, and manufacturing efficiency is poor. It was.

本発明は、従来の問題を解決するためになされたもので、照明効率を向上させることができるとともに、器具設計を容易に行うことができる無電極放電灯装置および照明器具を提供することを目的とする。   The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide an electrodeless discharge lamp device and a lighting fixture that can improve illumination efficiency and can be easily designed. And

本発明の無電極放電灯装置は、透光性を有する管体の内部に放電ガスが封入され、直線部および曲線部を備える無端管状のバルブと、前記バルブの一部を前記バルブの周回方向に対して直交するように包囲する磁性体からなるコアと、前記コアの少なくとも一部に巻回された誘導コイルと、前記誘導コイルに高周波電流を流して電磁誘導により前記放電ガスを励起発光させる高周波電源とを備える無電極放電灯装置であって、前記バルブが、第１湾曲部を有する第１湾曲管体と、第２湾曲部および一対の直線部を備える第２湾曲管体とを有するとともに、前記第１湾曲部の両端面と前記各直線部の端面とが付け合せ接合され、前記コアが、前記各直線部の端部に設置されていることを特徴とする。   An electrodeless discharge lamp device according to the present invention includes an endless tubular bulb in which a discharge gas is sealed inside a light-transmitting tube body and includes a straight portion and a curved portion, and a part of the bulb is surrounded by a circulating direction of the bulb. A core made of a magnetic material surrounding the core at right angles, an induction coil wound around at least a part of the core, and a high-frequency current flowing through the induction coil to excite and emit the discharge gas by electromagnetic induction An electrodeless discharge lamp apparatus including a high-frequency power source, wherein the bulb includes a first curved tube having a first curved portion, and a second curved tube having a second curved portion and a pair of straight portions. In addition, both end surfaces of the first curved portion and end surfaces of the respective straight portions are bonded and joined, and the core is installed at the end portions of the respective straight portions.

この構成により、バルブにおける直線部の端部にコアが設置されるので、バルブの直線部の中央部にはコアが設置されないことになる。このため、コアが発光を二分するという従来の問題を解決することができ、従来に比して発光効率を向上させることができるとともに、器具設計を容易にできることになる。   With this configuration, since the core is installed at the end of the straight line portion of the valve, the core is not installed at the center of the straight line portion of the valve. For this reason, the conventional problem that the core bisects the light emission can be solved, the light emission efficiency can be improved as compared with the conventional case, and the instrument design can be facilitated.

また、本発明の無電極放電灯装置は、前記第１湾曲管体の連続方向長さと、前記第２湾曲部の連続方向長さとが異なるとともに、前記第１湾曲管体と前記第２湾曲部との接合個所に前記コアが設置されていることを特徴とする。   In the electrodeless discharge lamp device according to the present invention, the continuous length of the first curved tube and the continuous length of the second curved portion are different, and the first curved tube and the second curved portion are different. The said core is installed in the junction part with.

この構成により、連続方向長さが異なる第１湾曲管体と第２湾曲部との接合個所にコアが設置されているため、バルブの直線部の中央部にはコアが設置されないことになる。このため、コアが発光を二分するという従来の問題を解決することができ、従来に比して発光効率を向上させることができるとともに、器具設計を容易にできることになる。   With this configuration, since the core is installed at the joint portion between the first bending tube body and the second bending portion having different lengths in the continuous direction, the core is not installed at the central portion of the linear portion of the valve. For this reason, the conventional problem that the core bisects the light emission can be solved, the light emission efficiency can be improved as compared with the conventional case, and the instrument design can be facilitated.

そして、本発明の無電極放電灯装置は、前記第１湾曲部および前記第２湾曲部のうちの一方の周面に設けられた突起部を有し、前記コアが前記直線部における前記突起部に近い側の端部に設置されていることを特徴とする。   And the electrodeless discharge lamp apparatus of this invention has the projection part provided in one surrounding surface of the said 1st bending part and the said 2nd bending part, and the said core is the said projection part in the said linear part. It is installed in the edge part near the side.

この構成により、突起部とコアとが互いに近い位置に配置されるため、低温時にはコアからの熱を受けて短時間で最冷点の温度を上昇させることができ、これにより点灯直後から明るさを確保することができる。   With this configuration, since the protrusion and the core are arranged close to each other, the temperature at the coldest spot can be raised in a short time by receiving heat from the core at a low temperature, thereby improving brightness immediately after lighting. Can be secured.

さらに、本発明の照明装置は、前述した無電極放電灯装置を用いた照明器具である。   Furthermore, the lighting device of the present invention is a lighting fixture using the electrodeless discharge lamp device described above.

この構成により、照明装置に用いられるバルブは、バルブにおける直線部の端部にコアが設置されているので、バルブの直線部の中央部にはコアが設置されないことになる。このため、コアがバルブの発光を二分するという従来の問題を解決することができ、従来の照明装置に比してバルブの発光効率を向上させることができるとともに、器具設計を容易にすることができることとなる。   With this configuration, the bulb used in the lighting device is provided with a core at the end of the linear portion of the bulb, so that no core is installed at the center of the linear portion of the bulb. For this reason, the conventional problem that the core bisects the light emission of the bulb can be solved, the luminous efficiency of the bulb can be improved as compared with the conventional lighting device, and the instrument design can be facilitated. It will be possible.

本発明は、バルブにおける直線部の端部にコアが設置されるので、バルブの直線部の中央部にはコアが設置されないことになる。このため、従来のようにコアが発光を二分するという問題を解決することができ、従来に比して発光効率を向上させることができるとともに、器具設計を容易にすることができるという効果を有する無電極放電灯装置を提供することができるものである。   In the present invention, since the core is installed at the end of the straight portion of the valve, the core is not installed at the center of the straight portion of the valve. For this reason, it is possible to solve the problem that the core bisects the light emission as in the conventional case, and it is possible to improve the light emission efficiency as compared with the conventional case and to facilitate the instrument design. An electrodeless discharge lamp device can be provided.

以下、本発明の実施形態の無電極放電灯装置について、図面を用いて説明する。
図１は本発明の第１実施形態の無電極放電灯装置を示す正面図、図２は図１中II−II位置の断面図である。 Hereinafter, an electrodeless discharge lamp device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing an electrodeless discharge lamp apparatus according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along a line II-II in FIG.

図１に示すように、本発明に係る第１実施形態の無電極放電灯装置１０は、透光性を有する管体の内部に放電ガス２４が封入された無端管状のバルブ２０と、このバルブ２０の一部をバルブ２０の周回方向に対して直交するように包囲する磁性体からなるコア３０と、コア３０の少なくとも一部に巻回された誘導コイル３１と、誘導コイル３１に高周波電流を流して電磁誘導により放電ガスを励起発光させる高周波電源１１とを備えている。そして、バルブ２０における直線部２２ｂの端部にコア３０が設置されている。   As shown in FIG. 1, an electrodeless discharge lamp apparatus 10 according to a first embodiment of the present invention includes an endless tubular bulb 20 in which a discharge gas 24 is sealed inside a translucent tube, and the bulb. A core 30 made of a magnetic material that surrounds a part of the valve 20 so as to be orthogonal to the circumferential direction of the valve 20, an induction coil 31 wound around at least a part of the core 30, and a high-frequency current to And a high-frequency power source 11 that excites and discharges the discharge gas by electromagnetic induction. And the core 30 is installed in the edge part of the linear part 22b in the valve | bulb 20. FIG.

バルブ２０は、例えば半円形状の第１湾曲部２１ａを有する第１湾曲管体２１と、例えば半円形状の第２湾曲部２２ａおよび一対の直線部２２ｂ、２２ｂを有する第２湾曲管体２２とを有している。バルブ２０の長手方向両端部に対応する両管体２１、２２の湾曲部２１ａ、２２ａの頂点には、各々管壁の温度が最も低くなる突起状の最冷点２５が設けられている。この最冷点２５は、例えば湾曲部２１ａ、２２ａを金型加工で作製する場合に、金型加工時に同時に作製することができる。また、第１湾曲部２１ａの両端面と各直線部２２ｂの端面とが付け合せ接合（バルブ接合部２３）され、かつ、各直線部２２ｂの端部にコア３０が設置されている。   The valve 20 has, for example, a first bending tube body 21 having a semicircular first bending portion 21a, and a second bending tube body 22 having, for example, a semicircular second bending portion 22a and a pair of straight portions 22b and 22b. And have. At the apexes of the curved portions 21a and 22a of the tubular bodies 21 and 22 corresponding to both ends in the longitudinal direction of the bulb 20, a protruding coldest point 25 where the temperature of the tube wall is the lowest is provided. The coldest spot 25 can be created at the same time as mold processing when the curved portions 21a and 22a are manufactured by mold processing, for example. Further, both end faces of the first bending portion 21a and end faces of the respective straight portions 22b are bonded and joined (valve joint portions 23), and the cores 30 are installed at the end portions of the respective straight portions 22b.

図２に示すように、バルブ２０を形成する第１湾曲管体２１および第２湾曲管体２２は、例えばガラスのような透光性材料からなる同じ円形断面の管体であり、バルブ接合部２３で接合されてバルブ２０の内部は気密が保たれている。管体２１、２２の内面には蛍光体が塗布されているが、バルブ接合部２３では、ガラス加工の必要性から、蛍光体が剥ぎ取られており、発光効率の観点からロスとなっている。また、バルブ２０の内部には、不活性ガス(例えばネオン，アルゴン，クリプトン，キセノン等)や水銀(そのほかナトリウム，カドミウム，亜鉛等の金属)蒸気等の放電ガス２４が封入されている。
これらの第１湾曲管体２１および第２湾曲管体２２は、互いの軸方向長さが異なっている。 As shown in FIG. 2, the first bent tube body 21 and the second bent tube body 22 forming the valve 20 are tubes having the same circular cross section made of a light-transmitting material such as glass, for example. 23, the valve 20 is kept airtight. The phosphors are applied to the inner surfaces of the tube bodies 21 and 22, but at the bulb joint 23, the phosphors are peeled off due to the necessity of glass processing, which is a loss from the viewpoint of luminous efficiency. . The bulb 20 is filled with a discharge gas 24 such as an inert gas (for example, neon, argon, krypton, xenon, etc.) or mercury (other metals such as sodium, cadmium, zinc, etc.) vapor.
The first bent tube body 21 and the second bent tube body 22 have different axial lengths.

図２に示すように、２つのコア３０、３０は、リング状でバルブ２０の一部を包囲する磁性体(例えば亜鉛，マンガン，ニッケル，鉄等の金属化合物であるフェライト)からなる。コア３０の内径の内側の領域には、第１湾曲管体２１および第２湾曲管体２２が貫通しており、コア３０は第１湾曲管体２１と第２湾曲管体２２とを接合するバルブ接合部２３、２３位置に設けられている。   As shown in FIG. 2, the two cores 30, 30 are made of a magnetic material (for example, ferrite which is a metal compound such as zinc, manganese, nickel, iron, etc.) that surrounds a part of the valve 20 in a ring shape. The first bending tube body 21 and the second bending tube body 22 pass through a region inside the inner diameter of the core 30, and the core 30 joins the first bending tube body 21 and the second bending tube body 22. Valve joints 23 are provided at the 23 positions.

コア３０には誘導コイル３１(例えばリッツ線等)が巻回されている。誘導コイル３１は、コア３０の外周全体に巻くのではなく、コア３０の一部にできるだけ高周波電源１１との配線が短くなるように巻かれている。誘導コイル３１は高周波電源１１に接続されており、高周波電流が供給されるようになっている。なお、高周波電源１１の出力の大きさ及び位相，誘導コイル３１の巻き数および巻方向は、バルブ２０内に放電が発生し維持されるように設定されている。   An induction coil 31 (for example, a litz wire) is wound around the core 30. The induction coil 31 is not wound around the entire outer periphery of the core 30 but is wound around a part of the core 30 so that the wiring with the high-frequency power source 11 is as short as possible. The induction coil 31 is connected to the high frequency power source 11 so that a high frequency current is supplied. The magnitude and phase of the output of the high-frequency power source 11 and the number of windings and the winding direction of the induction coil 31 are set so that discharge is generated and maintained in the bulb 20.

以上、説明した本発明にかかる無電極放電灯装置１０によれば、バルブ２０における直線部２２ｂの端部にコア３０が設置されるので、従来のようにバルブ２０の直線部２２ｂの中央部にはコア３０が設置されないことになる。このため、コア３０が発光を二分するという従来の問題を解決することができ、従来に比して発光効率を向上させることができるとともに、器具設計を容易にすることができることになる。また、湾曲部２１ａ、２２ａを有する湾曲管体２１、２２は、直管状バルブを加熱して曲げることで容易に成形することができるため、製造も容易になる。
さらに、無電極放電灯装置１０によれば、第１湾曲管体２１および第２湾曲管体２２の軸方向長さが異なっているため、バルブ２０の直線部の中央部にはコア３０が設置されず、これによりコア３０が発光を二分するという従来の問題を解決することができ、従来に比して発光効率を向上させることができるとともに、器具設計を容易にできる。 As described above, according to the electrodeless discharge lamp device 10 according to the present invention described above, the core 30 is installed at the end of the straight portion 22b of the bulb 20, so that the central portion of the straight portion 22b of the bulb 20 as in the prior art. The core 30 is not installed. For this reason, the conventional problem that the core 30 bisects the light emission can be solved, the light emission efficiency can be improved as compared with the conventional case, and the instrument design can be facilitated. Moreover, since the bending pipe bodies 21 and 22 which have the bending parts 21a and 22a can be easily shape | molded by heating and bending a straight tubular valve | bulb, manufacture becomes easy.
Furthermore, according to the electrodeless discharge lamp device 10, since the first bent tube body 21 and the second bent tube body 22 have different axial lengths, the core 30 is installed at the center of the straight portion of the bulb 20. Thus, the conventional problem that the core 30 bisects light emission can be solved, and the light emission efficiency can be improved as compared with the conventional case, and the instrument design can be facilitated.

また、本発明にかかる照明装置４０（図１参照）では、上述した無電極放電灯装置１０を用いることにより、コア３０が発光を二分するという従来の問題を解決することができ、従来に比して発光効率を向上させることができるとともに、器具設計を容易にすることができる。   Moreover, in the illuminating device 40 (refer FIG. 1) concerning this invention, the conventional problem that the core 30 bisects light emission can be solved by using the electrodeless discharge lamp device 10 mentioned above, compared with the past. Thus, the luminous efficiency can be improved and the instrument design can be facilitated.

次に、本発明の第２実施形態の無電極放電灯装置を説明する。
図３は本発明に係る第２実施形態の無電極放電灯装置を示す正面図である。なお、前述した第１の実施形態と共通する部位には同じ符号を付して、重複する説明を省略することとする。 Next, an electrodeless discharge lamp device according to a second embodiment of the present invention will be described.
FIG. 3 is a front view showing an electrodeless discharge lamp device according to a second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the site | part which is common in 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

図３に示すように、この無電極放電灯装置１０Ｂにおいては、バルブ２０ｂは、例えば半円形状の第１湾曲部２１ａを有する第１湾曲管体２１と、例えば半円形状の第２湾曲部２６ａおよび一対の直線部２６ｂ、２６ｂを有する第２湾曲管体２６とを有している。第１湾曲部２１ａの両端面と各直線部２６ｂの端面とが付け合せ接合（バルブ接合部２３）され、かつ、各直線部２６ｂの端部すなわちバルブ接合部２３にコア３０が設置されている。また、バルブ２０Ｂの長手方向端部に対応する第１湾曲管体２１の湾曲部２１ａの頂点には、管壁の温度が最も低くなる突起状の最冷点２５が設けられている。なお、第２湾曲管体２６の第２湾曲部２６ａには最冷点は設けられていない。
これらの第１湾曲管体２１および第２湾曲管体２６は、互いの軸方向長さが異なっている。 As shown in FIG. 3, in this electrodeless discharge lamp apparatus 10B, the bulb 20b includes, for example, a first curved tube body 21 having a semicircular first curved portion 21a, and a semicircular second curved portion, for example. 26a and a second curved tubular body 26 having a pair of straight portions 26b, 26b. The both end surfaces of the first curved portion 21a and the end surfaces of the straight portions 26b are bonded and joined (valve joint portions 23), and the core 30 is installed at the end portions of the straight portions 26b, that is, the valve joint portions 23. Further, at the apex of the bending portion 21a of the first bending tube body 21 corresponding to the end portion of the bulb 20B in the longitudinal direction, a protruding coldest point 25 where the temperature of the tube wall is lowest is provided. In addition, the coldest point is not provided in the 2nd bending part 26a of the 2nd bending tubular body 26. FIG.
The first bent tube body 21 and the second bent tube body 26 have different axial lengths.

このような無電極放電灯装置１０Ｂおよびこの無電極放電灯装置１０Ｂを用いた照明器具４０Ｂにおいても、前述した第１の実施の形態と同様の作用効果を得ることができる。さらに、この無電極放電灯装置１０Ｂにおいては、短い方である第１湾曲管体２１の第１湾曲部２１ａの頂点に最冷点２５を設けているので、最冷点２５はコア３０に近い位置に配置されることになる。このため、低温時にはコア３０からの熱を受けて短時間で最冷点２５の温度を上昇させることができるので、点灯直後から明るさを確保することができる。   Also in such an electrodeless discharge lamp device 10B and a lighting fixture 40B using the electrodeless discharge lamp device 10B, the same operational effects as those of the first embodiment described above can be obtained. Further, in this electrodeless discharge lamp device 10B, the coldest spot 25 is close to the core 30 because the coldest spot 25 is provided at the apex of the first curved portion 21a of the first curved tubular body 21, which is the shorter one. Will be placed in position. For this reason, since the temperature of the coldest point 25 can be raised in a short time by receiving heat from the core 30 at a low temperature, the brightness can be ensured immediately after lighting.

次に、本発明に係る第３実施形態の無電極放電灯装置を説明する。
図４は本発明に係る第３実施形態の無電極放電灯装置を示す正面図である。なお、前述した第１実施形態または第２実施形態と共通する部位には同じ符号を付して、重複する説明を省略することとする。 Next, an electrodeless discharge lamp device according to a third embodiment of the present invention will be described.
FIG. 4 is a front view showing an electrodeless discharge lamp device according to a third embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the site | part which is common in 1st Embodiment or 2nd Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

図４に示すように、この無電極放電灯装置１０Ｃにおいては、バルブ２０Ｃは、第１湾曲部２７ａを有する第１湾曲管体２７と、第２湾曲体２８ａおよび一対の直線部２８ｂを有する第２湾曲管体２８とから構成されている。両湾曲部２７ａ、２８ａの一対の角部は、それぞれ９０°に曲げられており、バルブ２０Ｃは全体としてほぼ矩形状となっている。
これらの第１湾曲管体２７および第２湾曲管体２８は、互いの軸方向長さが異なっている。 As shown in FIG. 4, in this electrodeless discharge lamp apparatus 10C, the bulb 20C includes a first curved tube body 27 having a first curved portion 27a, a second curved body 28a, and a pair of straight portions 28b. 2 bent tube bodies 28. A pair of corner portions of both the curved portions 27a and 28a are bent at 90 °, and the valve 20C has a substantially rectangular shape as a whole.
The first bending tube body 27 and the second bending tube body 28 have different axial lengths.

このような矩形状の無電極放電灯装置１０Ｃおよびこの無電極放電灯装置１０Ｃを用いた照明器具４０Ｃにおいても、前述した第１実施形態と同様の作用効果を得ることができる。   Also in the rectangular electrodeless discharge lamp device 10C and the lighting fixture 40C using the electrodeless discharge lamp device 10C, the same effects as those of the first embodiment described above can be obtained.

なお、以上の説明では、バルブ２０、２０Ｂ、２０Ｃを構成する第１湾曲管体２１、２７および第２湾曲管体２２、２６、２８の断面形状が円形（図２参照）の場合について説明したが、その他の断面形状についても同様に実施可能である。例えば、図５（Ａ）に示すように、断面形状が四角形や、図５（Ｂ）に示すように、正八角形（正多角形）としても、前述した効果を得ることができる。   In the above description, a case has been described in which the first bending tube bodies 21 and 27 and the second bending tube bodies 22, 26 and 28 constituting the valves 20, 20 B and 20 C are circular (see FIG. 2). However, other cross-sectional shapes can be similarly implemented. For example, the effects described above can be obtained even when the cross-sectional shape is a quadrangle as shown in FIG. 5A or a regular octagon (regular polygon) as shown in FIG. 5B.

以上のように、本発明に係る無電極放電灯装置は、バルブにおける直線部の端部にコアが設置されるので、バルブの直線部の中央部にはコアが設置されないことになる。このため、コアが発光を二分するという問題を解決することができ、従来に比して発光効率を向上させることができるとともに、器具設計を容易にすることができるという効果を有し、バルブに封入された放電ガスを電磁誘導によって励起発光させる無電極放電灯装置および照明装置等として有用である。   As described above, in the electrodeless discharge lamp device according to the present invention, since the core is installed at the end of the linear portion of the bulb, the core is not installed at the central portion of the linear portion of the bulb. For this reason, the problem that the core bisects the light emission can be solved, the light emission efficiency can be improved as compared with the conventional case, and the instrument design can be facilitated. It is useful as an electrodeless discharge lamp device, an illumination device, or the like that excites and emits enclosed discharge gas by electromagnetic induction.

本発明に係る第１実施形態の無電極放電灯装置および照明装置を示す正面図である。It is a front view which shows the electrodeless discharge lamp apparatus and illuminating device of 1st Embodiment which concern on this invention. 図１中II−II位置の断面図である。It is sectional drawing of the II-II position in FIG. 本発明に係る第２実施形態の無電極放電灯装置および照明装置を示す正面図である。It is a front view which shows the electrodeless discharge lamp apparatus and illuminating device of 2nd Embodiment which concern on this invention. 本発明に係る第３実施形態の無電極放電灯装置および照明装置を示す正面図である。It is a front view which shows the electrodeless discharge lamp apparatus and illuminating device of 3rd Embodiment which concern on this invention. （Ａ）および（Ｂ）はコアのその他の形状を示す断面図である。(A) And (B) is sectional drawing which shows the other shape of a core. 従来の無電極放電灯装置を示す正面図である。It is a front view which shows the conventional electrodeless discharge lamp apparatus.

符号の説明Explanation of symbols

１０ 無電極放電灯装置
１１ 高周波電源
２０ バルブ
２１ 第１湾曲管体
２１ａ 第１湾曲部
２２ 第２湾曲管体
２２ａ 第２湾曲部
２２ｂ 直線部
２４ 放電ガス
３０ コア
３１ 誘導コイル
４０ 照明器具 DESCRIPTION OF SYMBOLS 10 Electrodeless discharge lamp apparatus 11 High frequency power supply 20 Valve | bulb 21 1st curved tube body 21a 1st curved part 22 2nd curved tube body 22a 2nd curved part 22b Straight line part 24 Discharge gas 30 Core 31 Induction coil 40 Lighting fixture

Claims (3)

透光性を有する管体の内部に放電ガスが封入され、直線部および曲線部を備える無端管状のバルブと、
前記バルブの一部を前記バルブの周回方向に対して直交するように包囲する磁性体からなるコアと、
前記コアの少なくとも一部に巻回された誘導コイルと、
前記誘導コイルに高周波電流を流して電磁誘導により前記放電ガスを励起発光させる高周波電源とを備える無電極放電灯装置であって、
前記バルブが、第１湾曲部を有する第１湾曲管体と、第２湾曲部および一対の直線部を備える第２湾曲管体とを有するとともに、前記第１湾曲部の両端面と前記各直線部の端面とが付け合せ接合され、
前記コアが、前記各直線部の端部に設置され、
前記第１湾曲管体の連続方向長さと、前記第２湾曲部の連続方向長さとが異なるとともに、前記第１湾曲管体と前記第２湾曲部との接合個所に前記コアが設置されていることを特徴とする無電極放電灯装置。 An endless tubular bulb having a linear portion and a curved portion, in which a discharge gas is enclosed in a translucent tubular body;
A core made of a magnetic material that surrounds a part of the valve so as to be orthogonal to the circumferential direction of the valve;
An induction coil wound around at least a portion of the core;
An electrodeless discharge lamp device comprising a high-frequency power source for exciting and emitting the discharge gas by electromagnetic induction by flowing a high-frequency current through the induction coil,
The valve includes a first bending tube body having a first bending portion, a second bending tube body including a second bending portion and a pair of straight portions, and both end surfaces of the first bending portion and the straight lines. The end face of the part is bonded and joined,
The core is installed at an end of each linear portion ;
The continuous direction length of the first bending tube body is different from the continuous direction length of the second bending portion, and the core is installed at the joint between the first bending tube body and the second bending portion . An electrodeless discharge lamp device characterized by that. 前記第１湾曲部および前記第２湾曲部のうちの一方の周面に設けられた突起部を有し、  A protrusion provided on one peripheral surface of the first bending portion and the second bending portion;
前記コアが前記直線部における前記突起部に近い側の端部に設置されていることを特徴とする請求項１記載の無電極放電灯装置。  The electrodeless discharge lamp device according to claim 1, wherein the core is installed at an end portion of the linear portion on a side close to the protruding portion. 請求項１または請求項２に記載の無電極放電灯装置を用いた照明器具。  A lighting fixture using the electrodeless discharge lamp device according to claim 1.
JP2007016698A 2007-01-26 2007-01-26 Electrodeless discharge lamp apparatus and lighting fixture Expired - Fee Related JP4798009B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007016698A JP4798009B2 (en) 2007-01-26 2007-01-26 Electrodeless discharge lamp apparatus and lighting fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007016698A JP4798009B2 (en) 2007-01-26 2007-01-26 Electrodeless discharge lamp apparatus and lighting fixture

Publications (2)

Publication Number Publication Date
JP2008186611A JP2008186611A (en) 2008-08-14
JP4798009B2 true JP4798009B2 (en) 2011-10-19

Family

ID=39729511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007016698A Expired - Fee Related JP4798009B2 (en) 2007-01-26 2007-01-26 Electrodeless discharge lamp apparatus and lighting fixture

Country Status (1)

Country Link
JP (1) JP4798009B2 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0794152A (en) * 1993-09-27 1995-04-07 Ikeda Electric Co Ltd Electrodeless discharge lamp
US5722549A (en) * 1996-05-22 1998-03-03 Osram Sylvania Inc. Closed-loop tubular lamp envelope and method of manufacture
JP2002279937A (en) * 2001-03-19 2002-09-27 Victor Co Of Japan Ltd Electrodeless discharge tube and its manufacturing method
JP2005174712A (en) * 2003-12-10 2005-06-30 Toshiba Lighting & Technology Corp Electrodeless fluorescent lamp apparatus
JP4581834B2 (en) * 2005-05-17 2010-11-17 パナソニック電工株式会社 Electrodeless discharge lamp and lighting apparatus equipped with the same
JP2008053187A (en) * 2006-08-28 2008-03-06 Matsushita Electric Works Ltd Electrodeless discharge lamp and luminaire using the same
JP4807228B2 (en) * 2006-11-06 2011-11-02 パナソニック電工株式会社 Electrodeless discharge lamp, electrodeless discharge lamp device using the same, and lighting fixture
JP2008186607A (en) * 2007-01-26 2008-08-14 Matsushita Electric Works Ltd Electrodeless discharge lamp device and lighting fixture

Also Published As

Publication number Publication date
JP2008186611A (en) 2008-08-14

Similar Documents

Publication Publication Date Title
US5722549A (en) Closed-loop tubular lamp envelope and method of manufacture
JP4798009B2 (en) Electrodeless discharge lamp apparatus and lighting fixture
KR100884415B1 (en) An electrode-less fluorescent lamp having a 3-dimensional structure, and a method for manufacturing the same
JP2008186607A (en) Electrodeless discharge lamp device and lighting fixture
JP2008053187A (en) Electrodeless discharge lamp and luminaire using the same
JP2008186608A (en) Electrodeless discharge lamp device and lighting fixture
JP4127254B2 (en) Electrodeless discharge lamp and lighting apparatus using the same
JP4696962B2 (en) Electrodeless discharge lamp device and lighting fixture
JP2009289495A (en) Electrodeless discharge lamp, and luminaire
JP4581834B2 (en) Electrodeless discharge lamp and lighting apparatus equipped with the same
JP4715538B2 (en) Electrodeless discharge lamp device and lighting fixture
CN102306616B (en) Half built-in inductive coupling bulb-shaped electrodeless lamp of T-shaped magnetic core
JP4844444B2 (en) Electrodeless discharge lamp and lighting apparatus using the same
JP2008186609A (en) Electrodeless discharge lamp device and lighting fixture
JP2008210561A (en) Electrodeless discharge-lamp device and luminaire provided with the same
JP4780083B2 (en) Electrodeless discharge lamp device and lighting fixture
JP3906752B2 (en) Electrodeless discharge lamp device
JP2018045922A (en) Electrodeless lamp
JP4915638B2 (en) Electrodeless discharge lamp device and lighting fixture equipped with the electrodeless discharge lamp device
KR100906451B1 (en) Electrodeless fluorescent lamp
JP2008210538A (en) Electrodeless discharge lamp, and illumination fixture equipped with it
JP2009289481A (en) Electrodeless discharge lamp, and lighting fixture using the same
KR100711495B1 (en) An electrodeless lamp with guide-railed ring core
JP5572593B2 (en) Fluorescent lamp
JP2009129838A (en) Electrodeless discharge lamp and lighting device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090825

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110411

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110419

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110606

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110705

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110718

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140812

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees