JPH0237660A - Electrodeless discharge lamp - Google Patents
Electrodeless discharge lampInfo
- Publication number
- JPH0237660A JPH0237660A JP18638288A JP18638288A JPH0237660A JP H0237660 A JPH0237660 A JP H0237660A JP 18638288 A JP18638288 A JP 18638288A JP 18638288 A JP18638288 A JP 18638288A JP H0237660 A JPH0237660 A JP H0237660A
- Authority
- JP
- Japan
- Prior art keywords
- luminous tube
- hollow portion
- arc tube
- wall
- coil
- 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
- 239000004020 conductor Substances 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- 238000006552 photochemical reaction Methods 0.000 description 7
- 230000001954 sterilising effect Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000002070 germicidal effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、たとえば光化学反応のためなどに液体また
は気体を周囲から照射するための、いわゆる井原型の光
源装置などとして好適に実施される無電極放電ランプに
関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a device that is suitably implemented as a so-called Ibara type light source device for irradiating a liquid or gas from the surroundings for, for example, a photochemical reaction. This invention relates to electrode discharge lamps.
従来より、光化学反応によって光重合および殺菌などを
行うために、液体または気体の周囲から光を照射するよ
うにしたいわゆる井原型の光ａ装置が用いられている。BACKGROUND ART Conventionally, so-called Ihara-type optical a devices have been used that irradiate light from around liquids or gases in order to perform photopolymerization and sterilization through photochemical reactions.
このような装置の基本的な構成は第３図に示されており
、水などの流体が通るパイプｌのまわりに、このパイプ
１の軸線に平行に保持板２．３によって保持される直管
形のランプ４をパイプｌの周囲に複数本配置し、パイプ
１内の流体にランプ４からの光を照射するようにしてい
る。たとえばパイプ１内に水を流し、この水の殺菌を行
う場合には、ランプ４として直管形の低圧水銀灯（殺菌
灯）が用いられ、パイプ１は石英ガラスまたは光透過性
フッ素樹脂などの殺菌用の紫外線を透過させる材質を用
いて構成される。The basic configuration of such a device is shown in FIG. 3, in which a straight pipe is arranged around a pipe l through which a fluid such as water passes, and is held parallel to the axis of this pipe 1 by a holding plate 2.3. A plurality of shaped lamps 4 are arranged around the pipe l so that the fluid inside the pipe 1 is irradiated with light from the lamps 4. For example, when water is poured into the pipe 1 and the water is sterilized, a straight-tube low-pressure mercury lamp (sterilizing lamp) is used as the lamp 4, and the pipe 1 is made of sterilizing material such as quartz glass or light-transparent fluororesin. It is constructed using a material that transmits ultraviolet rays.
低圧水銀灯は殺菌線と呼ばれる波長２５３．７ ｎ ｍ
の光を多（放射し、この光によってパイプ１内の水の殺
菌が行われる。Low-pressure mercury lamps have a wavelength of 253.7 nm, which is called germicidal radiation.
This light sterilizes the water in the pipe 1.
しかしながら、この装置では、複数のランプ４はパイプ
１の周囲に、その周方向に間隔をあけて配置されるので
、パイプ１表面における光強度分布が一様にならないた
め、パイプ１内の流体の殺菌などの光化学反応が良好に
行われない。また、たとえば低圧水銀灯ではその放電電
極の損傷などのために、３０Ｗ定格のランプで４０００
時間程度の比較的短い寿命しか有することができず耐久
性に劣っている。さらに高出力のランプではその長さが
増大するために、装置の大型化が避けられないという問
題がある。However, in this device, since the plurality of lamps 4 are arranged around the pipe 1 at intervals in the circumferential direction, the light intensity distribution on the surface of the pipe 1 is not uniform. Photochemical reactions such as sterilization are not carried out well. In addition, for example, in a low-pressure mercury lamp, due to damage to the discharge electrode, a 30W rated lamp may
It has a relatively short lifespan of only about an hour and is inferior in durability. Furthermore, since the length of a high-output lamp increases, there is a problem in that the device inevitably becomes larger.
この発明の目的は、上述の技術的課題を解決し、照射空
間を−様な光強度で照射することができる無電極放電ラ
ンプを提供することである。An object of the present invention is to solve the above-mentioned technical problems and to provide an electrodeless discharge lamp capable of irradiating an irradiation space with a different light intensity.
この発明の無電極放電ランプは、軸線に沿う中空部分を
形成しこの中空部分を照射空間とした略円筒状の発光管
と、この発光管の外周に設けられ高周波電圧が印加され
るコイルとを備える。The electrodeless discharge lamp of the present invention includes a substantially cylindrical arc tube that has a hollow portion along its axis and uses this hollow portion as an irradiation space, and a coil that is provided around the outer periphery of the arc tube and to which a high-frequency voltage is applied. Be prepared.
この発明の構成によれば、発光管は略円筒状に構成され
、軸線に沿う中空部分を有しており、この中空部分が照
射空間とされる。したがってこの照射空間は−様な光強
度で周囲から照射される。According to the configuration of the present invention, the arc tube has a substantially cylindrical shape and has a hollow portion along the axis, and this hollow portion is used as the irradiation space. Therefore, this irradiation space is illuminated from the surroundings with a different light intensity.
前記発光管はこの発光管の外周に設けられ高周波電圧が
印加されるコイルから与えられる高周波磁界によって発
光する。したがって発光管には放電電極などが必要でな
いため、この発光管は充分に長い寿命を有しており、し
かも小型の発光管で高出力化が可能である。The arc tube emits light by a high frequency magnetic field applied from a coil provided around the outer periphery of the arc tube and to which a high frequency voltage is applied. Therefore, since the arc tube does not require a discharge electrode or the like, this arc tube has a sufficiently long life, and moreover, it is possible to achieve high output with a small arc tube.
第１図はこの発明の一実施例である無電種放電ランプの
基本的な構成を示す斜視図である。この無電極放電ラン
プは、たとえば流水を殺菌して純水化するためのいわゆ
る井原型の光源装置として用いられる。この無電極放電
ランプは、その軸線１１に沿う中空部分Ｓ１を形成した
略円筒状の発光管１１と、この発光管１１の外周面に帯
状の導体を巻きつけて構成したコイル１２と、このコイ
ル１２に接続される高周波電源１３とを備えている。コ
イル１２は線状の導線を用いて構成してもよいが、高周
波に抗を低域するためには前述のように帯状の導線を用
いる方が有利である。FIG. 1 is a perspective view showing the basic structure of an electroless discharge lamp which is an embodiment of the present invention. This electrodeless discharge lamp is used, for example, as a so-called Ibara type light source device for sterilizing and purifying running water. This electrodeless discharge lamp includes a substantially cylindrical arc tube 11 having a hollow portion S1 along its axis 11, a coil 12 formed by winding a band-shaped conductor around the outer circumferential surface of the arc tube 11, and this coil. 12 and a high frequency power source 13 connected to the power source 12. The coil 12 may be constructed using a linear conducting wire, but in order to reduce the resistance to high frequencies, it is more advantageous to use a strip-shaped conducting wire as described above.
前記発光管１１は、軸線ｅ１を共存する管状の内側壁１
１ａおよび外側壁１１ｂと、この内側壁１１ａおよび外
側壁１１ｂを前記軸線１１方向両端部で連結する環状の
連結壁１１Ｃ，１１，ｄとを備え、内部空間には高周波
磁界によって励起されて発光する放電ガスが封入されて
いる。発光管１１において、その外側壁１１ｂおよび連
結壁１１ｃ。The arc tube 11 has a tubular inner wall 1 coexisting with an axis e1.
1a and an outer wall 11b, and annular connecting walls 11C, 11, d that connect the inner wall 11a and the outer wall 11b at both ends in the direction of the axis 11, and the inner space is excited by a high frequency magnetic field and emits light. Filled with discharge gas. In the arc tube 11, its outer wall 11b and connecting wall 11c.
ｌｉｄの前記内部空間側の表面にはたとえばＴ ｉ Ｏ
２粒子などによって反射膜（図示せず）が形成されてお
り、内側壁１１ａは透明とされている。これによって発
光管１１において発生した光は、軸線１１を含み内側壁
１１ａによって囲まれる前記中空部分Ｓｌに効率よく導
かれ、そのようにしてこの中空部分Ｓ１が照射空間とさ
れている。The surface of the lid on the inner space side is coated with, for example, T i O.
A reflective film (not shown) is formed of two particles, etc., and the inner wall 11a is transparent. As a result, the light generated in the arc tube 11 is efficiently guided to the hollow portion S1 that includes the axis 11 and is surrounded by the inner wall 11a, thus making the hollow portion S1 an irradiation space.
前記発光管１１の中空部分Ｓ１を挿通して、発光管１１
からの光を透過させることができるパイプ１４が配設さ
れる。水の殺菌を行うときにはこのパイプ１４内を水が
流され、パイプ１４の材質としては石英ガラスまたは光
透過性フッ素樹脂などの後述する波長２５３．７ ｎ
ｍの殺菌線を透過させるものが選ばれる。このようにし
てパイプ１４内の水にはその周囲から殺菌線が照射され
ることになる。The arc tube 11 is inserted through the hollow portion S1 of the arc tube 11.
A pipe 14 is provided through which light can pass through. When water is sterilized, water is flowed through this pipe 14, and the material of the pipe 14 is quartz glass or light-transmitting fluororesin, which has a wavelength of 253.7 n, which will be described later.
A material that transmits germicidal radiation of m is selected. In this way, the water within the pipe 14 is irradiated with germicidal radiation from around it.
またこのとき、発光管１１の内部空間には、数Ｔ ｏｒ
ｒのアルゴンと数ｍ〜数十ｍＴｏｒｒの水沢ア気とが封
入される。高周波電ａ１３からコイル１２に高周波電圧
を印加すると、このコイル１２から与えられる高周波磁
界によって発光管■２内の水銀原子が励起されて発光す
る。このとき波長２５３、７ ｎ ｍの光（殺菌線）が
多く放射される。Also, at this time, the internal space of the arc tube 11 has several Tor or
Argon of r and Mizusawa air of several to several tens of mTorr are sealed. When a high frequency voltage is applied from the high frequency electric field a13 to the coil 12, the high frequency magnetic field applied from the coil 12 excites the mercury atoms in the arc tube 2 to emit light. At this time, a large amount of light (sterilizing radiation) with a wavelength of 253.7 nm is emitted.
前述の水銀蒸気の蒸気圧はこの殺菌線の出力が最大とな
るように選ばれる。また前述のアルゴンはこの場合に媛
衝ガスとして作用する。The vapor pressure of the mercury vapor mentioned above is selected so as to maximize the output of this germicidal wire. The aforementioned argon also acts as a buffer gas in this case.
このような構成によれば、パイプ１４表面における光強
度分布は、発光管１１の形状から明らかに均一となる。According to such a configuration, the light intensity distribution on the surface of the pipe 14 becomes clearly uniform due to the shape of the arc tube 11.
したがって、パイプ１４内を流れる水の殺菌は良好に行
われる。また、発光管１１では、外イリリ壁１１ｂおよ
び連結壁１１Ｃ，Ｌｉｄの発光管１１の内部空間側の表
面に反射膜を形成しているので発生した光は効率良く中
空部分Ｓ１に導かれる。したがって発光管１１の軸′ｇ
Ａｊ！１方向の長さを比較的小さくすることができるの
で、小型化に有利である。また発光−ｉ！ｆｉｌには放
電電極などが設けられないので、この発光管１１は、充
分に長い寿命を有しており、また比較的小型であっても
高出力化が可能である。さらにメンテナンスを軽減する
ことができるという利点がある。Therefore, the water flowing through the pipe 14 is effectively sterilized. Further, in the arc tube 11, a reflective film is formed on the surfaces of the outer wall 11b, the connecting wall 11C, and the lid on the inner space side of the arc tube 11, so that the generated light is efficiently guided to the hollow portion S1. Therefore, the axis 'g of the arc tube 11
Aj! Since the length in one direction can be made relatively small, it is advantageous for downsizing. Luminescence again-i! Since the fil is not provided with a discharge electrode or the like, the arc tube 11 has a sufficiently long life and is capable of high output even if it is relatively small. Another advantage is that maintenance can be reduced.
なお、この実施例において、パイプ１４内には水板外の
液体を流してもよく、さらに空気などの気体を流しても
よい。そのようなときには、発光管Ｌ１内に封入される
放電ガスは、所望の光化学反応に対応する波長の光が発
生するように選ばれる。In this embodiment, a liquid other than the water plate may be allowed to flow inside the pipe 14, and a gas such as air may also be allowed to flow therein. In such a case, the discharge gas sealed within the arc tube L1 is selected so as to generate light of a wavelength corresponding to the desired photochemical reaction.
第２図はこの発明の他の実施例の基本的な構成を示す１
ｔｌｉ面図である。この実施例では発光管２１はΦ４（
線ｅ２を有する略円筒状の側部２ｔａとこの側部２１ａ
の軸線β２方向一方側の端部に連なる底部２１ｂとから
構成され、ビー力もしくはデユワ−びんなどのような有
底容器として構成される。FIG. 2 shows the basic configuration of another embodiment of the present invention.
It is a tli side view. In this embodiment, the arc tube 21 is Φ4 (
A substantially cylindrical side portion 2ta having a line e2 and this side portion 21a
and a bottom portion 21b connected to one end in the direction of the axis β2, and is configured as a bottomed container such as a beer bottle or a dewar bottle.
このようにして形成される中空部分Ｓ２には光化学反応
を生しさせるべき液体などの流体２２が収納される。発
光管２１の側部２１ａの外周面には導体などを巻きつけ
てコイル２３が配置され、このコイル２３には高周波型
ａ２４から高周波電圧が印加される。発光管２１におい
て、その中空部分Ｓ２に対向する部位の側壁などは透明
であり、中空部分Ｓ２に対向しない部位の側壁などの放
電ガスが封入される内部空間側の表面には、反射膜（図
示せず）が形成されている。このようにして発光管２１
において発生した光は効率良く前記中空部分Ｓ２に導か
れ、したがってこの中空部分Ｓ２がいわば照射空間とさ
れている。The hollow portion S2 thus formed accommodates a fluid 22 such as a liquid to cause a photochemical reaction. A coil 23 is arranged around the outer peripheral surface of the side portion 21a of the arc tube 21, with a conductor or the like wound around it, and a high frequency voltage is applied to this coil 23 from a high frequency type a24. In the arc tube 21, the side wall of the part facing the hollow part S2 is transparent, and the surface of the inner space side where the discharge gas is filled, such as the side wall of the part not facing the hollow part S2, is coated with a reflective film (see FIG. (not shown) is formed. In this way, the arc tube 21
The light generated in is efficiently guided to the hollow portion S2, so that the hollow portion S2 is, so to speak, an irradiation space.
前述の第１実施例ではパイプ１４内に流体を流して光化
学反応を行うようにしているが、この実施例に従えば流
体２２を中空部分Ｓ２に佇留させて光化学反応を行わせ
ることができる。In the first embodiment described above, the fluid is caused to flow inside the pipe 14 to cause a photochemical reaction, but according to this embodiment, the fluid 22 can be retained in the hollow portion S2 to cause a photochemical reaction to occur. .
この発明の無電極数′遇ランプによれば、発光管は略円
筒状に構成され、軸線に沿う中空部分を有しており、こ
の中空部分が照射空間とされる。したがってこの照射空
間は−様な光強度で周囲から照射される。前記発光管は
この発光管の外周に設けられ高周波電圧が印加されるコ
イルから与えられる高周波磁界によって発光する。した
がって発光管には放電電極などが必要でないため、この
発光管は充分に長い寿命を有しており、しかも小型の発
光管で高出力化が可能である。したがって、たとえば井
原型の光源装置〃を小型に構成することが可能となり、
またその耐久性を格段に向上することができるようにな
る。According to the electrodeless multifunction lamp of the present invention, the arc tube has a substantially cylindrical shape and has a hollow portion along the axis, and this hollow portion is used as the irradiation space. Therefore, this irradiation space is illuminated from the surroundings with a different light intensity. The arc tube emits light by a high frequency magnetic field applied from a coil provided around the outer periphery of the arc tube and to which a high frequency voltage is applied. Therefore, since the arc tube does not require a discharge electrode or the like, this arc tube has a sufficiently long life, and moreover, it is possible to achieve high output with a small arc tube. Therefore, for example, it is possible to configure an Ibara-type light source device in a small size.
Moreover, its durability can be significantly improved.
第１１２Ｉはこの発明の一実施例の基本的な構成を示す
斜視図、第２図はこの発明の他の実施例の基本的な構成
を示す断面図、第３図は典型的な先行技術の廣本的な構
成を示す正面図である。
１１．２１・・・発光管、１２．２３・・・コイル、１
３２４・・・高周波電源、Ｓｌ、Ｓ２・・・中空部分−
ｐ２
．５２
第２図112I is a perspective view showing the basic structure of one embodiment of the present invention, FIG. 2 is a sectional view showing the basic structure of another embodiment of the invention, and FIG. 3 is a typical prior art structure. FIG. 3 is a front view showing a typical configuration. 11.21... Arc tube, 12.23... Coil, 1
324...High frequency power supply, Sl, S2...Hollow part-
p2. 52 Figure 2
Claims (1)
した略円筒状の発光管と、この発光管の外周に設けられ
高周波電圧が印加されるコイルとを備えた無電極放電ラ
ンプ。An electrodeless discharge lamp comprising: a substantially cylindrical arc tube with a hollow portion extending along the axis and using the hollow portion as an irradiation space; and a coil provided around the outer periphery of the arc tube to which a high frequency voltage is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18638288A JPH0237660A (en) | 1988-07-25 | 1988-07-25 | Electrodeless discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18638288A JPH0237660A (en) | 1988-07-25 | 1988-07-25 | Electrodeless discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0237660A true JPH0237660A (en) | 1990-02-07 |
Family
ID=16187413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18638288A Pending JPH0237660A (en) | 1988-07-25 | 1988-07-25 | Electrodeless discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237660A (en) |
-
1988
- 1988-07-25 JP JP18638288A patent/JPH0237660A/en active Pending
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