JPH0793127B2 - Electrodeless discharge lamp - Google Patents
Electrodeless discharge lampInfo
- Publication number
- JPH0793127B2 JPH0793127B2 JP63072254A JP7225488A JPH0793127B2 JP H0793127 B2 JPH0793127 B2 JP H0793127B2 JP 63072254 A JP63072254 A JP 63072254A JP 7225488 A JP7225488 A JP 7225488A JP H0793127 B2 JPH0793127 B2 JP H0793127B2
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- lamp bulb
- bulb
- excitation coil
- electrodeless discharge
- 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 - Lifetime
Links
- 230000005284 excitation Effects 0.000 claims description 11
- 229910001507 metal halide Inorganic materials 0.000 claims description 10
- 150000005309 metal halides Chemical class 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052753 mercury Inorganic materials 0.000 claims description 7
- 230000005684 electric field Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000005672 electromagnetic field Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、電磁界を用いて放電、発光させる無電極放電
ランプに関する。The present invention relates to an electrodeless discharge lamp that discharges and emits light using an electromagnetic field.
［従来の技術］ 最近、電磁界を用いて放電、発光させる無電極放電ラン
プが開発されてきた。この無電極放電ランプの特徴とし
ては、従来の電極を有する放電ランプと異なり、電極が
ないために長寿命であり、また、電極物質の飛散に伴う
ランプ壁面の黒化現象による光束低下が無くなるという
利点がある。[Prior Art] Recently, an electrodeless discharge lamp that discharges and emits light using an electromagnetic field has been developed. The features of this electrodeless discharge lamp are that, unlike the discharge lamp having conventional electrodes, it has a long life because there are no electrodes, and that there is no reduction in luminous flux due to the blackening phenomenon of the lamp wall surface due to the scattering of electrode material. There are advantages.
［発明が解決しようとする課題］ このような無電極放電ランプにおいて、ランプ内に封入
する発光物質を金属ハロゲン化物を用いる、所謂メタル
ハライドランプでは、電子付着性の強いハロゲン物質が
ランプ内に封入されている為に、電磁界や電磁波が外部
から印加され、ランプ内に電子が発生してもハロゲン物
質に付着し、絶縁破壊に有効に寄与せず、始動が困難で
あった。[Problems to be Solved by the Invention] In such an electrodeless discharge lamp, in a so-called metal halide lamp in which a metal halide is used as a light-emitting substance sealed in the lamp, a halogen substance having a strong electron attachment property is sealed in the lamp. Therefore, even if an electromagnetic field or an electromagnetic wave is applied from the outside and electrons are generated in the lamp, they adhere to the halogen substance and do not contribute effectively to the dielectric breakdown, making it difficult to start.
本発明は、上記の欠点を改善するためになされたもの
で、その目的とするところは、金属ハロゲン化物が封入
されているにもかかわらず、始動が容易な無電極放電ラ
ンプを提供するにある。The present invention has been made to remedy the above-mentioned drawbacks, and an object thereof is to provide an electrodeless discharge lamp that is easy to start even though a metal halide is enclosed. .
［課題を解決するための手段］ 以下、本発明を実施例に基づいて説明する。第１図は本
発明の一実施例を示すもので、図中、１は透光性石英か
ら成る無電極放電ランプバルブで、ランプバルブ１内に
は所定量の水銀、希ガス及び金属ハロゲン化物が封入さ
れている。２は透光性石英から成る始動補助用バルブ
で、始動補助用バルブ２内には所定量の水銀及び希ガス
が封入されており、前記ランプバルブ１と一体的に形成
されている。３はランプバルブ１の外周壁に沿って巻回
された励起コイルで、本実施例では４ターン巻かれてい
る。[Means for Solving the Problems] Hereinafter, the present invention will be described based on Examples. FIG. 1 shows an embodiment of the present invention. In the figure, 1 is an electrodeless discharge lamp bulb made of translucent quartz, in which a predetermined amount of mercury, rare gas and metal halide is contained. Is enclosed. Reference numeral 2 is a start assisting valve made of translucent quartz, and a predetermined amount of mercury and a rare gas are enclosed in the start assisting valve 2 and are integrally formed with the lamp bulb 1. Reference numeral 3 denotes an excitation coil wound along the outer peripheral wall of the lamp bulb 1, which is wound 4 turns in this embodiment.
このように構成された無電極放電ランプにおいて、上記
励起コイル３に図示しない高周波電源によって高周波電
流を通電すると、ランプバルブ１内にはハロゲン物質が
封入されている為、前述の如く電子がハロゲン物質に付
着し、絶縁破壊が起こり難く始動が困難であるが、始動
補助用バルブ２内にはハロゲン物質が封入されていない
ので絶縁破壊電圧が比較的低いのと、加えて励起コイル
３間に生じる線間電界の強い部分が有効に利用できる
為、まず、始動補助用バルブ２内で容易に放電が起こ
り、水銀の発光が起こる。この水銀から発せられる紫外
線がランプバルブ１内に照射され、この紫外線のエネル
ギーによってランプバルブ１内で励起、電離が起こり、
放電しやすい状態になる。In the electrodeless discharge lamp configured as described above, when a high-frequency current is applied to the excitation coil 3 by a high-frequency power source (not shown), the halogen substance is enclosed in the lamp bulb 1. However, since a halogen substance is not enclosed in the start-up assisting valve 2, the breakdown voltage is relatively low, and in addition, it occurs between the excitation coils 3. Since a portion having a strong line electric field can be effectively used, first, electric discharge easily occurs in the start-up assisting valve 2 and mercury emission occurs. The ultraviolet rays emitted from the mercury are irradiated into the lamp bulb 1, and the energy of the ultraviolet rays causes excitation and ionization in the lamp bulb 1,
It becomes easy to discharge.
このようにしてランプバルブ１内で放電しやすい状態に
なると、ランプバルブ１内では励起コイル３による誘導
電界によりトロイダル状の主放電に移行する。従って、
ランプバルブ１内には金属ハロゲン化物が封入されてい
るにもかかわらず、始動が容易になる。When the lamp bulb 1 is thus easily discharged, the toroidal main discharge is generated in the lamp bulb 1 due to the electric field induced by the excitation coil 3. Therefore,
Even if the metal halide is enclosed in the lamp bulb 1, the starting is facilitated.
なお、始動補助用バルブ２内には、ランプバルブ１内の
封入物を光励起させることのできる光を放射する物質が
封入されていれば良い。特に、水銀とアルゴンガスのよ
うなペニング効果が期待できる組み合わせにすれば、始
動補助用バルブ２内の絶縁破壊がさらに容易に起こり、
電磁界を印加してからランプバルブ１が主放電へ移行す
るまでの時間の短縮にさらに効果がある。また、前記実
施例では始動補助用バルブ２を１個しか設けていない
が、第２図に示すように２個設けてもよいし、それ以上
設けてもよい。さらに、前記実施例におけるランプバル
ブ１及び始動補助用バルブ２の形状は一例であり、その
形状は限定されない。It should be noted that the starting assistance bulb 2 may be filled with a substance that emits light that can optically excite the enclosed material in the lamp bulb 1. In particular, if a combination of mercury and argon gas, which can be expected to have a Penning effect, is used, dielectric breakdown in the starting assistance valve 2 will occur more easily,
It is further effective in shortening the time from the application of the electromagnetic field to the transition of the lamp bulb 1 to the main discharge. Further, although only one starting assisting valve 2 is provided in the above embodiment, two valves may be provided as shown in FIG. 2 or more may be provided. Further, the shapes of the lamp bulb 1 and the starting assistance bulb 2 in the above embodiment are merely examples, and the shapes are not limited.
［発明の効果］ 本発明は上記のように、所定量の水銀、希ガス及び金属
ハロゲン化物が封入された透光性を有するランプバルブ
と、該ランプバルブに一体的に設けられ、金属ハロゲン
化物を含まず、前記ランプバルブ内の封入物を光励起さ
せることのできる光を放射する物質が封入された透光性
を有する始動補助用バルブと、前記ランプバルブの外周
壁に沿って巻回された２ターン以上の励起コイルとを備
えた無電極放電ランプであって、前記励起コイルは、そ
のコイル間に生じる線間電界が前記始動補助用バルブに
印加されるように巻回されていることを特徴とするの
で、金属ハロゲン化物が封入された無電極放電ランプで
あるにもかかわらず、ランプの始動が容易になる。[Advantages of the Invention] As described above, the present invention provides a translucent lamp bulb in which a predetermined amount of mercury, a rare gas and a metal halide are enclosed, and a metal halide which is integrally provided in the lamp bulb. And a light-transmissive start-up assisting bulb in which a substance that emits light capable of optically exciting the inclusion in the lamp bulb is enclosed, and is wound along the outer peripheral wall of the lamp bulb. An electrodeless discharge lamp having an excitation coil of two or more turns, wherein the excitation coil is wound so that a line electric field generated between the coils is applied to the starting assistance bulb. As a feature, the lamp is easy to start even though it is an electrodeless discharge lamp in which a metal halide is enclosed.
第１図は本発明の一実施例を示す断面図、第２図は本発
明の異なる実施例を示す断面図である。 １……ランプバルブ ２……始動補助用バルブ ３……励起コイルFIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing a different embodiment of the present invention. 1 ... Lamp bulb 2 ... Starting assistance valve 3 ... Excitation coil
フロントページの続き (56)参考文献 特開 昭60−235351（ＪＰ，Ａ) 特開 昭58−194246（ＪＰ，Ａ) 特開 昭57−63768（ＪＰ，Ａ) 特開 昭62−43058（ＪＰ，Ａ) 特開 昭50−21580（ＪＰ，Ａ) 特公 昭37−6045（ＪＰ，Ｂ１)Continuation of the front page (56) Reference JP-A-60-235351 (JP, A) JP-A-58-194246 (JP, A) JP-A-57-63768 (JP, A) JP-A-62-43058 (JP , A) JP-A-50-21580 (JP, A) JP-B 37-6045 (JP, B1)
Claims (1)
物が封入された透光性を有するランプバルブと、該ラン
プバルブに一体的に設けられ、金属ハロゲン化物を含ま
ず、前記ランプバルブ内の封入物を光励起させることの
できる光を放射する物質が封入された透光性を有する始
動補助用バルブと、前記ランプバルブの外周壁に沿って
巻回された２ターン以上の励起コイルとを備えた無電極
放電ランプであって、前記励起コイルは、そのコイル間
に生じる線間電界が前記始動補助用バルブに印加される
ように巻回されていることを特徴とする無電極放電ラン
プ。1. A lamp bulb having a light-transmitting property in which a predetermined amount of mercury, a rare gas and a metal halide are sealed, and a lamp bulb which is provided integrally with the lamp bulb and does not contain a metal halide, And a light-transmissive start-up assisting valve in which a substance that emits light capable of optically exciting the enclosure is encapsulated, and an excitation coil having two or more turns wound along the outer peripheral wall of the lamp bulb. An electrodeless discharge lamp provided with the excitation coil, wherein the excitation coil is wound so that a line electric field generated between the coils is applied to the starting assistance bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63072254A JPH0793127B2 (en) | 1988-03-25 | 1988-03-25 | Electrodeless discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63072254A JPH0793127B2 (en) | 1988-03-25 | 1988-03-25 | Electrodeless discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01243304A JPH01243304A (en) | 1989-09-28 |
| JPH0793127B2 true JPH0793127B2 (en) | 1995-10-09 |
Family
ID=13483975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63072254A Expired - Lifetime JPH0793127B2 (en) | 1988-03-25 | 1988-03-25 | Electrodeless discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0793127B2 (en) |
Families Citing this family (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, sterilization device and water treatment device |
| US20100156295A1 (en) * | 2006-10-31 | 2010-06-24 | Kyung-Hoon Park | Electrodeless bulb, and electrodeless lighting system having the same |
| JP5517099B2 (en) * | 2010-01-15 | 2014-06-11 | 岩崎電気株式会社 | Light source device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2426662A1 (en) * | 1973-06-06 | 1975-01-02 | Westinghouse Electric Corp | ELECTRODELESS DISCHARGE ARRANGEMENT |
| JPS5763768A (en) * | 1980-10-02 | 1982-04-17 | Mitsubishi Electric Corp | Non-electrode discharge lamp |
| JPS58194246A (en) * | 1982-05-07 | 1983-11-12 | Mitsubishi Electric Corp | Nonelectrode discharge lamp and microwave discharge light source device using lamp thereof |
| JPS60235351A (en) * | 1984-05-07 | 1985-11-22 | Mitsubishi Electric Corp | Light source device for microwave discharge |
| US4783615A (en) * | 1985-06-26 | 1988-11-08 | General Electric Company | Electrodeless high pressure sodium iodide arc lamp |
-
1988
- 1988-03-25 JP JP63072254A patent/JPH0793127B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01243304A (en) | 1989-09-28 |
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Legal Events
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