JPH04303549A - High frequency lighting type discharge lamp - Google Patents
High frequency lighting type discharge lampInfo
- Publication number
- JPH04303549A JPH04303549A JP3093683A JP9368391A JPH04303549A JP H04303549 A JPH04303549 A JP H04303549A JP 3093683 A JP3093683 A JP 3093683A JP 9368391 A JP9368391 A JP 9368391A JP H04303549 A JPH04303549 A JP H04303549A
- Authority
- JP
- Japan
- Prior art keywords
- arc tube
- high frequency
- discharge
- lamp
- discharge lamp
- 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.)
- Pending
Links
- 229910001507 metal halide Inorganic materials 0.000 claims abstract description 17
- 150000005309 metal halides Chemical class 0.000 claims abstract description 17
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 8
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 8
- 239000011241 protective layer Substances 0.000 claims description 13
- 230000005684 electric field Effects 0.000 claims description 12
- 150000002500 ions Chemical class 0.000 abstract description 15
- 229910052736 halogen Inorganic materials 0.000 abstract description 8
- 150000002367 halogens Chemical class 0.000 abstract description 8
- 229910021645 metal ion Inorganic materials 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 2
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 15
- 239000007789 gas Substances 0.000 description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 235000009518 sodium iodide Nutrition 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- -1 sodium iodide Chemical class 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/827—Metal halide arc lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、高周波電界により金属
ハロゲン化物を励起して発光させるようにした電極を持
たない無電極形の高周波点灯式放電ランプに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrodeless high-frequency operated discharge lamp which excites a metal halide to emit light using a high-frequency electric field.
【０００２】0002
【従来の技術】透光性発光管に放電ガスを封入し、この
発光管を高周波電界の雰囲気に置くと、上記放電ガスが
高周波電界によって励起され、発光管内で放電が発生し
て発光することは、古くから知られている。[Prior Art] When a light-transmitting arc tube is filled with a discharge gas and the arc tube is placed in an atmosphere of a high-frequency electric field, the discharge gas is excited by the high-frequency electric field, causing discharge to occur within the arc tube and emitting light. has been known since ancient times.
【０００３】このような高周波点灯式放電ランプは、電
源に接続される格別な電極を設ける必要がなく、すなわ
ち無電極構造とすることができるので、ランプの構造が
簡単になり、ランプの製造が容易になるなどの利点があ
る。[0003] Such high-frequency discharge lamps do not require special electrodes to be connected to the power source, and can have an electrodeless structure, which simplifies the structure of the lamp and makes lamp manufacturing easier. There are advantages such as ease of use.
【０００４】しかしながら、従来においては高周波発生
装置の構造が複雑であり、大形で、しかも高価になって
いたので実用化が進んでいなかった。ところが、最近に
おいて半導体技術などの電子技術が著しく進み、高周波
発生装置においても小形のインバ−タ回路が安価に製造
できるようになり、高性能の高周波電源が容易に実用で
きるようになった。[0004] However, in the past, high frequency generators had complicated structures, were large in size, and were expensive, so that they had not been put into practical use. However, in recent years, electronic technology such as semiconductor technology has advanced significantly, and small inverter circuits can be manufactured at low cost even in high-frequency generators, and high-performance high-frequency power supplies can now be easily put into practical use.
【０００５】したがって、上記無電極の高周波点灯式放
電ランプが見直されるようになってきた。[0005] Therefore, the above-mentioned electrodeless high-frequency operation type discharge lamp has been reconsidered.
【０００６】例えば、直径３０ｍｍ程度の石英ガラスか
らなる発光管に、よう化ナトリウムなどのような金属ハ
ロゲン化物とアルゴンガスなどの希ガスを封入し、この
発光管をマイクロ波の電界におくと、上記金属ハロゲン
化物が電離され、これが発光することは確認されている
。For example, if an arc tube made of quartz glass with a diameter of about 30 mm is filled with a metal halide such as sodium iodide and a rare gas such as argon gas, and the arc tube is placed in a microwave electric field, It has been confirmed that the metal halide mentioned above is ionized and emits light.
【０００７】[0007]
【発明が解決しようとする課題】しかし、上記のように
発光物質として金属ハロゲン化物を用いた高周波点灯式
放電ランプにおいては、点灯中に金属ハロゲン化物が電
離されて金属がハロゲンと分離され、イオン化する。こ
の時、発光管内の放電は管壁に近い内面層で激しく行わ
れているから、上記金属イオンは強く加速され、大きな
加速エネルギーで管壁に衝突する。このため、金属イオ
ンは管壁に打ち込まれ、遊離したハロゲンは放電空間に
残って、放電空間ではハロゲンが過剰になる。この結果
、放電維持電圧が上昇し、ランプが短寿命になる不具合
がある。[Problems to be Solved by the Invention] However, as described above, in high-frequency lighting discharge lamps that use metal halides as light-emitting substances, the metal halides are ionized during lighting, the metal is separated from the halogen, and ionization occurs. do. At this time, since the discharge inside the arc tube is intensely occurring on the inner surface layer near the tube wall, the metal ions are strongly accelerated and collide with the tube wall with large acceleration energy. Therefore, metal ions are implanted into the tube wall, and free halogen remains in the discharge space, resulting in excess halogen in the discharge space. As a result, the discharge sustaining voltage increases and the life of the lamp is shortened.
【０００８】本発明はこのような事情にもとづきなされ
たもので、その目的とするところは、発光物質として金
属ハロゲン化物を用いた無電極形の高周波点灯式放電ラ
ンプにおいて、放電維持電圧の上昇を防止し、ランプ寿
命が長くなるランプを提供しようとするものである。The present invention was made based on the above circumstances, and its purpose is to increase the discharge sustaining voltage in an electrodeless high-frequency lighting discharge lamp using a metal halide as a luminescent material. The aim is to provide a lamp that prevents this problem and has a longer lamp life.
【０００９】[0009]
【課題を解決するための手段】本発明は、無電極とした
発光管に金属ハロゲン化物および希ガスを封入し、この
発光管を高周波電界の雰囲気中に設置して上記金属ハロ
ゲン化物を高周波の励起により発光させるようにした高
周波点灯式放電ランプにおいて、上記発光管の内面に金
属酸化物からなるイオン保護層を形成したことを特徴と
する。[Means for Solving the Problems] The present invention involves filling an electrodeless arc tube with a metal halide and a rare gas, placing the arc tube in an atmosphere of a high-frequency electric field, and applying a high-frequency electric field to the metal halide. A high-frequency operating discharge lamp that emits light upon excitation is characterized in that an ion protective layer made of a metal oxide is formed on the inner surface of the arc tube.
【００１０】0010
【作用】本発明は、発光管の内面に金属酸化物からなる
イオン保護層を形成したので、電離された金属イオンが
管壁に衝突しようとしても上記イオン保護層に阻まれ、
管壁に打ち込まれるのが防止される。このためハロゲン
が放電空間で過剰になることがなくなる。[Operation] In the present invention, since an ion protective layer made of metal oxide is formed on the inner surface of the arc tube, even if ionized metal ions try to collide with the tube wall, they are blocked by the ion protective layer.
This prevents it from being driven into the pipe wall. This prevents halogen from becoming excessive in the discharge space.
【００１１】[0011]
【実施例】以下本発明について、図面を参照して説明す
る。図において、１は高周波点灯式放電ランプを示し、
２はその発光管であり、石英やアルミナシリケートガラ
スなどの耐熱性ガラスにより形成され、直径が約３０ｍ
ｍ程度の球形とされている。この発光管２には排気管３
が接続されており、この排気管３は発光管の排気後に所
定長さを残して封止切りされ、この突出部が発光管の支
持部としてランプホルダ４により支えられるようになっ
ている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to the drawings. In the figure, 1 indicates a high frequency lighting type discharge lamp,
2 is the arc tube, which is made of heat-resistant glass such as quartz or alumina silicate glass, and has a diameter of approximately 30 m.
It is said to have a spherical shape of about m. This luminous tube 2 has an exhaust pipe 3
The exhaust pipe 3 is sealed and cut leaving a predetermined length after the discharge of the arc tube, and this protrusion is supported by the lamp holder 4 as a support for the arc tube.
【００１２】発光管２の内面には金属酸化物からなるイ
オン保護層５が形成されている。このイオン保護層５は
、例えば酸化アルミニウムや酸化マグネシウムあるいは
酸化セリウムなどの酸化希土類金属または酸化アルカリ
土類金属などにより形成されている。そして、このよう
な発光管２内には、よう化ナトリウム等の金属ハロゲン
化物とアルゴンなどの希ガスが封入されている。An ion protective layer 5 made of metal oxide is formed on the inner surface of the arc tube 2. The ion protective layer 5 is formed of rare earth metal oxide or alkaline earth metal oxide, such as aluminum oxide, magnesium oxide, or cerium oxide. The arc tube 2 is filled with a metal halide such as sodium iodide and a rare gas such as argon.
【００１３】なお、発光管２の内面にイオン保護層５を
形成するには、以下の方法が用いられる。例えばイオン
保護層５がアルミナの場合、アルミナ粉末を酢酸ブチル
などの溶液に溶かし、この溶液を排気管３を通じて発光
管２内に注入する。発光管２の内面に上記溶液が付着す
ると余剰の溶液を排除し、発光管２の内面に付着したア
ルミナ溶液を乾燥して被膜を形成する。次に排気管３か
ら空気を吹き込み、この空気を置換しながら発光管２を
数１００℃の温度で加熱し、上記塗布したアルミナ被膜
を焼成する。この後、排気管３を通じて発光管２内の空
気を排気し、金属ハロゲン化物、水銀および希ガスを封
入して排気管を封止切りする。Note that the following method is used to form the ion protective layer 5 on the inner surface of the arc tube 2. For example, when the ion protective layer 5 is made of alumina, alumina powder is dissolved in a solution such as butyl acetate, and this solution is injected into the arc tube 2 through the exhaust pipe 3. When the solution adheres to the inner surface of the arc tube 2, excess solution is removed, and the alumina solution adhering to the inner surface of the arc tube 2 is dried to form a film. Next, air is blown through the exhaust pipe 3, and while replacing the air, the arc tube 2 is heated at a temperature of several hundred degrees Celsius, and the alumina coating coated above is fired. Thereafter, the air inside the arc tube 2 is exhausted through the exhaust pipe 3, and metal halide, mercury, and rare gas are filled in and the exhaust pipe is sealed and cut.
【００１４】上記のように構成された高周波点灯式放電
ランプ１は、高周波電界１０の中に置かれる。高周波電
界１０は、例えば導電性材料からなるランプハウジング
などで作り出すことができ、ランプハウジングを構成す
る対向する導電部材１１、１２を放電電極とし、これら
導電部材１１、１２を高周波電源１３に接続するなどの
手段で構成される。なお、高周波電源１３は半導体イン
バータ回路などにより構成され、例えば１０００ボルト
、５０ＭＨｚのマイクロ波を供給する。上記高周波点灯
式放電ランプ１は導電部材１１、１２の間に発生される
高周波電界１０の雰囲気中に設置されている。The high-frequency operated discharge lamp 1 constructed as described above is placed in a high-frequency electric field 10. The high-frequency electric field 10 can be created, for example, by a lamp housing made of a conductive material, and the opposing conductive members 11 and 12 forming the lamp housing are used as discharge electrodes, and these conductive members 11 and 12 are connected to a high-frequency power source 13. It is composed of means such as. Note that the high frequency power source 13 is constituted by a semiconductor inverter circuit or the like, and supplies microwaves of, for example, 1000 volts and 50 MHz. The high-frequency discharge lamp 1 is installed in an atmosphere of a high-frequency electric field 10 generated between conductive members 11 and 12.
【００１５】このような構成においては、高周波電界１
０に置かれたランプ１は、発光管２内の金属ハロゲン化
物、例えばよう化ナトリウムが高周波エネルギーにより
電離され、これが発光する。In such a configuration, the high frequency electric field 1
When the lamp 1 is placed at zero, the metal halide, such as sodium iodide, in the arc tube 2 is ionized by high frequency energy, and it emits light.
【００１６】このような放電発光の場合、金属ハロゲン
化物、例えばよう化ナトリウムが電離されてナトリウム
とようそ素とに分離され、ナトリウムがイオン化する。
この時、発光管２内の放電は管壁に近い内面で激しく行
われているから、上記ナトリウムイオンが強く加速され
、管壁に衝突して管壁に打ち込まれ、このため遊離した
よう素が放電空間に残って、放電空間でハロゲン過剰に
なる。In the case of such discharge light emission, a metal halide, such as sodium iodide, is ionized and separated into sodium and iodine, and sodium is ionized. At this time, since the discharge inside the arc tube 2 is intensely occurring on the inner surface near the tube wall, the sodium ions are strongly accelerated, collide with the tube wall, and are driven into the tube wall, which causes free iodine to be released. It remains in the discharge space, resulting in excess halogen in the discharge space.
【００１７】しかし、本発明においては、発光管２の内
面に金属酸化物からなるイオン保護層５を形成したので
、電離された金属イオンが管壁に衝突しようとしてもこ
のイオン保護層５が阻止し、ナトリウムイオンが管壁に
打ち込まれるのを防止する。このためハロゲンが放電空
間で過剰になることがなくなる。However, in the present invention, since the ion protective layer 5 made of metal oxide is formed on the inner surface of the arc tube 2, even if the ionized metal ions try to collide with the tube wall, the ion protective layer 5 prevents the ionized metal ions from colliding with the tube wall. This prevents sodium ions from being driven into the tube wall. This prevents halogen from becoming excessive in the discharge space.
【００１８】したがって、放電維持電圧の上昇を防止す
ることができ、ランプ寿命を長くすることができる。[0018] Therefore, it is possible to prevent the discharge sustaining voltage from increasing, and the lamp life can be extended.
【００１９】ちなみに、本発明の場合、イオン保護層５
をもたない無電極高周波点灯式放電ランプと比較したと
ころ、寿命は３倍になり、放電維持電圧の上昇割合は点
灯３００時間で約１／３であった。Incidentally, in the case of the present invention, the ion protective layer 5
When compared with an electrodeless high-frequency operating discharge lamp without a lamp, the lifespan was tripled, and the rate of increase in discharge sustaining voltage was approximately 1/3 after 300 hours of lighting.
【００２０】なお、本発明は、発光管２内によう化ナト
リウム等の金属ハロゲン化物とアルゴンなどの希ガスを
封入するだけでなく、緩衝金属としての水銀を付加して
もよい。In the present invention, in addition to filling the arc tube 2 with a metal halide such as sodium iodide and a rare gas such as argon, mercury as a buffer metal may be added.
【００２１】また、発光管の形状は球形に限らず、円筒
形や楕円形など公知のランプ形状が適用可能である。Further, the shape of the arc tube is not limited to a spherical shape, and any known lamp shape such as a cylindrical shape or an elliptical shape can be applied.
【００２２】さらに、発光管の内面にけい光体被膜を形
成した場合であってもよく、この場合イオン保護膜はけ
い光体被膜の内面または外面のどちらに形成してもよい
。Furthermore, a phosphor coating may be formed on the inner surface of the arc tube, and in this case, the ion protective film may be formed on either the inner or outer surface of the phosphor coating.
【００２３】[0023]
【発明の効果】以上説明したように本発明によれば、発
光管の内面に金属酸化物からなるイオン保護層を形成し
たので、電離された金属イオンが管壁に衝突しようとし
てもこのイオン保護層が阻止し、金属イオンが管壁に打
ち込まれるのを防止する。このためハロゲンが放電空間
で過剰になることがなくなり、よって放電維持電圧の上
昇を防止することができるとともに、ランプ寿命を長く
することができる。Effects of the Invention As explained above, according to the present invention, since an ion protective layer made of metal oxide is formed on the inner surface of the arc tube, even if ionized metal ions try to collide with the tube wall, this ion protection layer will not be removed. The layer blocks and prevents metal ions from being driven into the tube wall. This prevents halogen from becoming excessive in the discharge space, thereby making it possible to prevent the discharge sustaining voltage from increasing and lengthening the life of the lamp.
【図１】本発明の一実施例を示す高周波点灯式放電ラン
プの構成図。FIG. 1 is a configuration diagram of a high-frequency lighting discharge lamp showing an embodiment of the present invention.
１…高周波点灯式放電ランプ、２…発光管、５…イオン
保護層、１０…高周波電界、１３…高周波電源。DESCRIPTION OF SYMBOLS 1... High frequency lighting type discharge lamp, 2... Arc tube, 5... Ion protective layer, 10... High frequency electric field, 13... High frequency power supply.
Claims (1)
物および希ガスを封入し、この発光管を高周波電界の雰
囲気中に設置して上記金属ハロゲン化物を高周波で励起
して発光させるようにした高周波点灯式放電ランプにお
いて、上記発光管の内面に金属酸化物からなるイオン保
護層を形成したことを特徴とする高周波点灯式放電ラン
プ。[Claim 1] A metal halide and a rare gas are sealed in an electrodeless arc tube, and the arc tube is placed in an atmosphere of a high frequency electric field so that the metal halide is excited by high frequency and emit light. A high frequency lit discharge lamp, characterized in that an ion protective layer made of a metal oxide is formed on the inner surface of the arc tube.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3093683A JPH04303549A (en) | 1991-03-30 | 1991-03-30 | High frequency lighting type discharge lamp |
| EP19920302784 EP0507533A3 (en) | 1991-03-30 | 1992-03-30 | A mercury-free electrodeless metal halide lamp |
| KR1019920005455A KR920018822A (en) | 1991-03-30 | 1992-03-30 | Mercury free electrodeless metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3093683A JPH04303549A (en) | 1991-03-30 | 1991-03-30 | High frequency lighting type discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04303549A true JPH04303549A (en) | 1992-10-27 |
Family
ID=14089208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3093683A Pending JPH04303549A (en) | 1991-03-30 | 1991-03-30 | High frequency lighting type discharge lamp |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0507533A3 (en) |
| JP (1) | JPH04303549A (en) |
| KR (1) | KR920018822A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1021880A (en) * | 1996-07-08 | 1998-01-23 | Toshiba Lighting & Technol Corp | Discharge lamp, irradiation device, sterilizing device, and water treatment equipment |
| JP2000133209A (en) * | 1998-10-27 | 2000-05-12 | Iwasaki Electric Co Ltd | Electrodeless field-discharge excimer lamp device |
| JP2013541816A (en) * | 2010-09-29 | 2013-11-14 | ネオ・テック・アクア・ソリューションズ・インコーポレーテッド | Excimer light source |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6828194A (en) * | 1993-05-12 | 1994-12-12 | Rae Systems, Inc. | Gas discharge lamp |
| US5393979A (en) * | 1993-05-12 | 1995-02-28 | Rae Systems, Inc. | Photo-ionization detector for detecting volatile organic gases |
| GB2284704B (en) * | 1993-12-10 | 1998-07-08 | Gen Electric | Patterned optical interference coatings for electric lamps |
| BE1007914A3 (en) * | 1993-12-24 | 1995-11-14 | Philips Electronics Nv | Low-pressure mercury vapor discharge lamp and method for manufacturing it. |
| EP0674339A3 (en) * | 1994-03-25 | 1997-04-23 | Koninkl Philips Electronics Nv | Electrodeless low-pressure mercury vapour discharge lamp. |
| US5614151A (en) * | 1995-06-07 | 1997-03-25 | R Squared Holding, Inc. | Electrodeless sterilizer using ultraviolet and/or ozone |
| US5866981A (en) * | 1995-08-11 | 1999-02-02 | Matsushita Electric Works, Ltd. | Electrodeless discharge lamp with rare earth metal halides and halogen cycle promoting substance |
| US5949180A (en) * | 1996-12-20 | 1999-09-07 | Fusion Lighting, Inc. | Lamp apparatus with reflective ceramic sleeve holding a plasma that emits light |
| DE19731168A1 (en) * | 1997-07-21 | 1999-01-28 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Illumination system |
| US6124683A (en) * | 1999-04-14 | 2000-09-26 | Osram Sylvania Inc. | System for and method of operating a mercury free discharge lamp |
| US6229269B1 (en) | 1999-05-21 | 2001-05-08 | Osram Sylvania Inc. | System for and method of operating a discharge lamp |
| KR100367132B1 (en) * | 2000-04-27 | 2003-01-09 | 준 최 | Electroless discharge device |
| US8282986B2 (en) | 2006-05-18 | 2012-10-09 | Osram Sylvania, Inc. | Method of applying phosphor coatings |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492898A (en) * | 1982-07-26 | 1985-01-08 | Gte Laboratories Incorporated | Mercury-free discharge lamp |
| US4480213A (en) * | 1982-07-26 | 1984-10-30 | Gte Laboratories Incorporated | Compact mercury-free fluorescent lamp |
| US4890042A (en) * | 1988-06-03 | 1989-12-26 | General Electric Company | High efficacy electrodeless high intensity discharge lamp exhibiting easy starting |
| US4972120A (en) * | 1989-05-08 | 1990-11-20 | General Electric Company | High efficacy electrodeless high intensity discharge lamp |
-
1991
- 1991-03-30 JP JP3093683A patent/JPH04303549A/en active Pending
-
1992
- 1992-03-30 KR KR1019920005455A patent/KR920018822A/en not_active Application Discontinuation
- 1992-03-30 EP EP19920302784 patent/EP0507533A3/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1021880A (en) * | 1996-07-08 | 1998-01-23 | Toshiba Lighting & Technol Corp | Discharge lamp, irradiation device, sterilizing device, and water treatment equipment |
| JP2000133209A (en) * | 1998-10-27 | 2000-05-12 | Iwasaki Electric Co Ltd | Electrodeless field-discharge excimer lamp device |
| JP2013541816A (en) * | 2010-09-29 | 2013-11-14 | ネオ・テック・アクア・ソリューションズ・インコーポレーテッド | Excimer light source |
Also Published As
| Publication number | Publication date |
|---|---|
| KR920018822A (en) | 1992-10-22 |
| EP0507533A3 (en) | 1993-01-07 |
| EP0507533A2 (en) | 1992-10-07 |
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