JPH06196132A - Electrodeless electric-discharge lamp device - Google Patents
Electrodeless electric-discharge lamp deviceInfo
- Publication number
- JPH06196132A JPH06196132A JP34496292A JP34496292A JPH06196132A JP H06196132 A JPH06196132 A JP H06196132A JP 34496292 A JP34496292 A JP 34496292A JP 34496292 A JP34496292 A JP 34496292A JP H06196132 A JPH06196132 A JP H06196132A
- Authority
- JP
- Japan
- Prior art keywords
- arc tube
- induction coil
- light
- discharge lamp
- lamp device
- 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.)
- Granted
Links
- 230000006698 induction Effects 0.000 claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000005672 electromagnetic field Effects 0.000 claims description 7
- 238000004031 devitrification Methods 0.000 abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 11
- 239000010453 quartz Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 2
- 230000000116 mitigating effect Effects 0.000 abstract 1
- 229910001507 metal halide Inorganic materials 0.000 description 10
- 150000005309 metal halides Chemical class 0.000 description 10
- 229910052761 rare earth metal Inorganic materials 0.000 description 10
- 150000002910 rare earth metals Chemical class 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 238000009877 rendering Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、発光管内部に電極を持
たず、外部から印加された高周波電磁界によって発光管
内部の発光物質を励起発光させる無電極放電灯装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrodeless discharge lamp device which has no electrode inside the arc tube and excites and emits a luminescent substance inside the arc tube by a high frequency electromagnetic field applied from the outside.
【０００２】[0002]
【従来の技術】最近、発光管内部に電極を持たない無電
極放電灯に外部より電磁界を印加し、放電・発光させる
無電極放電灯装置が開発されている。この放電灯は、従
来の電極を有する放電灯に比べ、電極がない為に、電極
の飛散によって発光管内面に生じる黒化がなく、光束維
持率も良く長寿命な光源である。また、小型で高出力と
いった特長を持っている。2. Description of the Related Art Recently, an electrodeless discharge lamp device has been developed which discharges and emits light by externally applying an electromagnetic field to an electrodeless discharge lamp having no electrodes inside the arc tube. This discharge lamp is a light source that has no electrodes and therefore has no blackening caused on the inner surface of the arc tube due to scattering of the electrodes, and has a good luminous flux maintenance ratio and a long life, as compared with a discharge lamp having conventional electrodes. It also has the features of small size and high output.
【０００３】図４は、かかる無電極放電灯装置の一例を
示す概略図で、石英等の透光性を有する材料で形成され
た発光管１の内部には、希ガスや発光物質が気密封入さ
れている。また、発光管１の外周壁に沿って巻かれた高
周波電磁界印加用の誘導コイル２は、インピーダンス整
合器３を介して高周波電源４に接続されている。FIG. 4 is a schematic view showing an example of such an electrodeless discharge lamp device. A rare gas or a luminescent substance is hermetically sealed in an arc tube 1 made of a material having a light-transmitting property such as quartz. Has been done. The induction coil 2 for applying a high frequency electromagnetic field, which is wound along the outer peripheral wall of the arc tube 1, is connected to a high frequency power source 4 via an impedance matching device 3.
【０００４】発光物質として金属ハロゲン化物を用いた
無電極メタルハライドランプにおいて、発光効率を高め
る工夫がいろいろとなされている。その方法の一つに発
光管内の金属ハロゲン化物の蒸気圧を高める方法があ
る。また、メタルハライドランプにおいて、発光管内の
蒸気圧は最冷点部分の温度によって決まることが知られ
ている。In an electrodeless metal halide lamp using a metal halide as a light emitting substance, various measures have been taken to enhance the luminous efficiency. One of the methods is to increase the vapor pressure of the metal halide in the arc tube. Further, it is known that in a metal halide lamp, the vapor pressure in the arc tube is determined by the temperature of the coldest spot.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、図４に
示す無電極放電灯装置においては、発光管１の温度分布
は誘導コイル２の近辺が温度が高く、コイル２から離れ
たＡ部分、Ｂ部分の温度が低くなる。このＡ部分、Ｂ部
分の温度を上げる方法として、図５（ａ）に示す球形の
発光管断面のように直径と高さを決めると、図５
（ｂ），（ｃ），（ｄ）のように直径寸法より高さ寸法
の方が低い略円筒形状にすることにより、最冷点部を点
灯中の放電プラズマに近づけ、最冷点温度を高める方法
が試みられている。この方法により、いくらかの発光効
率の改善は望めるが、大幅な発光効率の改善には至らな
い。However, in the electrodeless discharge lamp device shown in FIG. 4, the temperature distribution of the arc tube 1 has a high temperature near the induction coil 2 and a portion A and a portion B apart from the coil 2. The temperature will drop. As a method of raising the temperature of the A portion and the B portion, if the diameter and height are determined as in the spherical arc tube cross section shown in FIG.
As shown in (b), (c), and (d), the coldest spot is made closer to the discharge plasma during lighting by making the shape of the cylinder whose height is lower than diameter, so that the coldest spot temperature is Ways to increase are being tried. Although this method can be expected to improve the luminous efficiency to some extent, it does not significantly improve the luminous efficiency.
【０００６】また最近、高演色化、高効率化の為に、金
属ハロゲン化物に希土類金属のハロゲン化物が用いられ
ているが、この希土類金属ハロゲン化物を用いた場合、
演色性や効率の改善は図れるが、点灯中に希土類金属と
発光管の石英ガラスが高温である為に次第に反応し、石
英ガラス面を失透させるという現象が生じ、発光管の光
の透過率を低下させるという問題が生じる。石英ガラス
の代わりに、高温下での耐アルカリ性の強いアルミナを
用いた発光管においても、希土類金属との反応が報告さ
れている。無電極放電灯においては、図６においてＣ部
分の温度が最も高く、且つ、発光管１内に生じるプラズ
マに接しやすいコイル２近傍のＣ部分に失透が生じやす
い。Recently, a rare earth metal halide has been used as a metal halide for the purpose of high color rendering and high efficiency. When this rare earth metal halide is used,
Although color rendering and efficiency can be improved, the phenomenon that the rare earth metal and the quartz glass of the arc tube gradually react during lighting to cause devitrification of the quartz glass surface, and the light transmittance of the arc tube Occurs. A reaction with a rare earth metal has been reported even in an arc tube using alumina, which has strong alkali resistance at high temperature, instead of quartz glass. In the electrodeless discharge lamp, the temperature of the C portion is highest in FIG. 6, and devitrification is likely to occur in the C portion in the vicinity of the coil 2 which is likely to come into contact with the plasma generated in the arc tube 1.
【０００７】本発明は、上記問題点に鑑みなされたもの
で、その目的とするところは、発光効率の大幅な向上が
図れると共に、失透現象の低減により長寿命化が達成で
きる無電極放電灯装置を提供することにある。The present invention has been made in view of the above problems. An object of the present invention is to improve the luminous efficiency significantly, and to reduce the devitrification phenomenon to achieve an extended life of the electrodeless discharge lamp. To provide a device.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
本発明は、透光性を有する発光管の外周壁に沿って巻か
れた誘導コイルに高周波電流を通電し、誘導コイルの内
側に形成される高周波電磁界を発光管内に封入されてい
る放電ガスや発光物質に作用させることにより、発光物
質を励起発光させる無電極放電灯装置において、前記発
光管をその回転軸が前記誘導コイルの巻線軸と交差する
ように配置して回転させたことを特徴とする。In order to solve the above-mentioned problems, the present invention provides a high-frequency current to an induction coil wound along the outer peripheral wall of a translucent arc tube and forms it inside the induction coil. In an electrodeless discharge lamp device that excites and emits a light-emitting substance by causing a high-frequency electromagnetic field generated therein to act on a discharge gas or a light-emitting substance sealed in the light-emitting tube, the rotation axis of the light-emitting tube is the winding of the induction coil. It is characterized in that it is arranged so as to intersect the line axis and is rotated.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図１を参照して説
明する。図において、１は石英等の透光性を有する材料
で形成された発光管で、その内部には希ガスや発光物質
が所定量気密封入されている。２は発光管１の外周壁に
沿って巻かれた高周波電磁界印加用の誘導コイルであ
り、前記従来例と同様、インピーダンス整合器（図示せ
ず）を介して高周波電源（図示せず）に接続されてい
る。６は発光管１を支持する発光管支持棒であり、その
先端は発光管回転装置５に接続されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG. In the figure, reference numeral 1 denotes an arc tube formed of a material having a light-transmitting property such as quartz, in which a predetermined amount of a rare gas or a luminescent substance is hermetically sealed. Reference numeral 2 denotes an induction coil for applying a high-frequency electromagnetic field, which is wound along the outer peripheral wall of the arc tube 1, and is connected to a high-frequency power source (not shown) via an impedance matching device (not shown) as in the conventional example. It is connected. Reference numeral 6 denotes an arc tube supporting rod that supports the arc tube 1, and its tip is connected to the arc tube rotating device 5.
【００１０】ここで、発光管支持棒６は誘導コイル２の
巻線間より突出するように設けられると共に、その回転
軸Ｅが誘導コイル２の巻線軸Ｄ−Ｄ’と直交するように
配置されている。なお、巻線軸Ｄ−Ｄ’と回転軸Ｅが成
す角度は、上記の如く直角に限定される必要はなく、例
えば図２に示すような位置関係でもよいが、出来るだけ
直角に近い方が望ましい。Here, the arc tube supporting rod 6 is provided so as to protrude from between the windings of the induction coil 2, and the rotation axis E thereof is arranged so as to be orthogonal to the winding axis DD ′ of the induction coil 2. ing. The angle formed by the winding axis DD ′ and the rotation axis E does not have to be limited to a right angle as described above, and may have a positional relationship as shown in FIG. 2, for example, but it is desirable that the angle be as close to a right angle as possible. .
【００１１】このように構成された無電極放電灯装置の
作用を図３を用いて説明する。図３は図１における巻線
軸Ｄ−Ｄ’に沿った断面図であり、発光管１を回転しな
い場合、誘導コイル２の近傍（図中、Ｆ部分）の温度が
高く、誘導コイル２から離れている部分（図中、Ｇ部
分）の温度が低くなる。発光管１を回転することによ
り、発光管１の管壁温度は、回転しない時に比べて、Ｆ
部分とＧ部分の温度差が少なくなる。つまり、最冷点部
分Ｇの温度が上昇することになり、発光管１内の発光物
質の蒸気圧を入力を増やすことなく高めることができ、
発光効率が向上する。The operation of the electrodeless discharge lamp device thus constructed will be described with reference to FIG. FIG. 3 is a sectional view taken along the winding axis DD ′ in FIG. 1. When the arc tube 1 is not rotated, the temperature in the vicinity of the induction coil 2 (F portion in the figure) is high and the induction coil 2 is separated from the induction coil 2. The temperature of the open portion (G portion in the figure) becomes low. By rotating the arc tube 1, the temperature of the tube wall of the arc tube 1 becomes F
The temperature difference between the portion and the G portion is reduced. That is, the temperature of the coldest spot portion G rises, and the vapor pressure of the luminescent substance in the arc tube 1 can be increased without increasing the input,
Luminous efficiency is improved.
【００１２】また、発光管１を回転したときの発光管１
の内面を観察すると、発光管１内に封入されている金属
ハロゲン化物が熱により溶け、発光管１の内面全体にわ
たって濡れた状態になる。従って、下記理由により、最
冷点の温度によって決まる発光管１内の金属ハロゲン化
物の蒸気圧以上に蒸気圧を高めることができ、発光効率
を著しく向上することができた。Also, the arc tube 1 when the arc tube 1 is rotated
When the inner surface of the arc tube 1 is observed, the metal halide enclosed in the arc tube 1 is melted by heat, and the entire inner surface of the arc tube 1 becomes wet. Therefore, for the following reason, the vapor pressure can be increased above the vapor pressure of the metal halide in the arc tube 1 determined by the temperature of the coldest spot, and the luminous efficiency can be remarkably improved.
【００１３】１９７１年にＭＩＴプレスより出版された
ＪＯＨＮ Ｆ．ＷＡＹＭＯＵＴＨ著の「ＥＬＥＣＴＲＩ
Ｃ ＤＩＳＣＨＡＲＧＥ ＬＡＭＰＳ」の第８章「ＭＥ
ＴＡＬ ＨＡＬＩＤＥ ＡＲＣ ＬＡＭＰＳ」の第8.4
節「Ｔｈｅ Ｅｆｆｅｃｔｓｏｆ Ａｒｃ Ｔｕｂｅ
Ｇｅｏｍｅｔｒｙ」で、最冷点温度部から温度の高い側
に向かって拡がる濃縮物フィルム（金属ハロゲン化物が
溶けて発光管内面が濡れた状態になっているもの）は、
最冷点温度で決まる蒸気圧よりも金属ハロゲン化物の圧
力を増加させると述べている。また、金属ハロゲン化物
の溶けた状態で発光管内面を濡らした状態になっている
部分の面積が広い方が、蒸気圧が高くなるという他の報
告もある。JOHN F., published by MIT Press in 1971. WAYMOUTH's "ELECTTRI"
C DISCHARGE LAMPS "Chapter 8" ME
8.4 of "TAL HALIDE ARC LAMPS"
Section “The Effects of Arc Tube
In the case of "Geometry", the concentrate film that spreads from the coldest spot temperature part toward the higher temperature side (where the metal halide is melted and the inner surface of the arc tube is wet) is
It states that it increases the pressure of the metal halide above the vapor pressure determined by the coldest spot temperature. In addition, there are other reports that the vapor pressure becomes higher when the area of the portion where the inner surface of the arc tube is wet in a state where the metal halide is melted is larger.
【００１４】さらに、希土類金属ハロゲン化物を用いた
場合、上述のように石英との反応により失透現象が生じ
やすい。この反応について、いくつかの反応式が発表さ
れているが、代表的なものを次に記す。下式においてＭ
は希土類金属を、Ｘはハロゲンを表す。Further, when a rare earth metal halide is used, the devitrification phenomenon tends to occur due to the reaction with quartz as described above. Several reaction formulas have been published for this reaction, but representative ones are shown below. In the formula below, M
Represents a rare earth metal, and X represents a halogen.
【００１５】[0015]
【化１】 [Chemical 1]
【００１６】ＳｉＯはガスとして蒸発するので、石英
（ＳｉＯ2 ）はエッチングされた状態になる。また、Ｓ
ｉＯは不安定なので、安定な形ＳｉＯ2 に再結晶し、微
粒子として発光管内面に付着する。これに加え、Ｍ2 Ｏ
3 ・ＢＳｉＯ2 （但し、Ｂは正の自然数）の複合化合物
によって発光管内面の失透現象が起こる。Since SiO evaporates as a gas, quartz (SiO 2 ) is in an etched state. Also, S
Since iO is unstable, it recrystallizes into stable SiO 2 and adheres to the inner surface of the arc tube as fine particles. In addition to this, M 2 O
The devitrification phenomenon of the inner surface of the arc tube occurs due to the composite compound of 3 · BSiO 2 (B is a positive natural number).
【００１７】しかし、発光管１を回転すると、希土類金
属ハロゲン化物が熱によって溶けたものがフィルム状に
発光管１内面を被うので、希土類金属（蒸発した希土類
金属ハロゲン化物がアーク中で熱により解離したもの）
と石英との接触を防ぐことができる。また、希土類金属
ハロゲン化物の形では安定で石英との反応はない。However, when the arc tube 1 is rotated, the inside of the arc tube 1 is covered with a film of the rare earth metal halide melted by heat, so that the rare earth metal (evaporated rare earth metal halide is heated by heat in the arc). Dissociated)
Can prevent contact with quartz. The rare earth metal halide is stable and does not react with quartz.
【００１８】さらに、発光管１を回転しない場合、発光
管１内に発生するプラズマに接している負荷の集中する
誘導コイル２の近傍に失透現象が発生したが、発光管１
を回転した場合、高温部の温度も少し低下し、発光管１
の一部分に負荷が集中することなく均一化するので、失
透現象も起こりにくくなっている。Further, when the arc tube 1 is not rotated, the devitrification phenomenon occurs near the induction coil 2 in contact with the plasma generated in the arc tube 1 where the load is concentrated.
When rotating the, the temperature of the high temperature part will drop a little and the arc tube 1
The devitrification phenomenon is less likely to occur because the load is made uniform without being concentrated on a part of the.
【００１９】次に、図１に示す実施例について具体的な
数値を説明する。外径２３mmの石英で形成された球状の
発光管１内に、発光物質として、ＮｄＩ3 ：１５mgとＣ
ｓＩ：５mg、Ｘｅガス：１００Torr封入し、誘導コイル
２を３ターン巻いたものを用いた場合、発光管１を回転
させないとき、発光効率は６３lm／Ｗであったが、回転
させることにより、１３０lm／Ｗの光が得られた。Next, specific numerical values will be described for the embodiment shown in FIG. In a spherical arc tube 1 made of quartz with an outer diameter of 23 mm, NdI 3 : 15 mg and C were used as a luminescent substance.
When the induction coil 2 was wound 3 turns and sealed with sI: 5 mg and Xe gas: 100 Torr, the luminous efficiency was 63 lm / W when the arc tube 1 was not rotated. Light of / W was obtained.
【００２０】失透現象については、回転させない場合、
誘導コイル２の近傍に５００時間点灯した段階で失透現
象が発生し始めたが、回転させた場合は、５０００時間
経過した時点でも失透現象は見られなかった。Regarding the devitrification phenomenon, when not rotating,
The devitrification phenomenon began to occur at the stage of lighting for about 500 hours in the vicinity of the induction coil 2, but when it was rotated, the devitrification phenomenon was not observed even after 5000 hours had elapsed.
【００２１】発光管１内に封入する物質、誘導コイル２
のターン数は上記に限定されるものではない。また、発
光管１の形状も上記の球状に限定されるものではない。
ただ、発光管支持棒６によって形成される回転中心線に
ついて回転対称である形状が望ましい。さらに、発光管
１の回転数も特に限定されるものではない。Induction coil 2, substance enclosed in arc tube 1.
The number of turns of is not limited to the above. Further, the shape of the arc tube 1 is not limited to the above spherical shape.
However, a shape that is rotationally symmetric with respect to the rotation center line formed by the arc tube support rod 6 is desirable. Furthermore, the number of revolutions of the arc tube 1 is not particularly limited.
【００２２】[0022]
【発明の効果】本発明は上記のように、透光性を有する
発光管の外周壁に沿って巻かれた誘導コイルに高周波電
流を通電し、誘導コイルの内側に形成される高周波電磁
界を発光管内に封入されている放電ガスや発光物質に作
用させることにより、発光物質を励起発光させる無電極
放電灯装置において、前記発光管をその回転軸が前記誘
導コイルの巻線軸と交差するように配置して回転させた
ことにより、発光効率の大幅な向上が図れると共に、失
透現象の低減により長寿命化を達成することができた。As described above, the present invention applies a high-frequency current to the induction coil wound along the outer peripheral wall of the translucent arc tube to generate a high-frequency electromagnetic field formed inside the induction coil. In an electrodeless discharge lamp device that excites and emits a light-emitting substance by acting on a discharge gas or a light-emitting substance sealed in the light-emitting tube, the rotation axis of the light-emitting tube intersects the winding axis of the induction coil. By arranging and rotating it, it was possible to significantly improve the luminous efficiency, and it was possible to achieve a long life by reducing the devitrification phenomenon.
【図１】本発明の一実施例を示す概略図である。FIG. 1 is a schematic view showing an embodiment of the present invention.
【図２】本発明の異なる実施例を示す概略図である。FIG. 2 is a schematic diagram showing a different embodiment of the present invention.
【図３】図１における巻線軸Ｄ−Ｄ’に沿った概略断面
図である。FIG. 3 is a schematic cross-sectional view taken along the winding axis DD ′ in FIG.
【図４】従来例を示す概略図である。FIG. 4 is a schematic view showing a conventional example.
【図５】最冷点温度を上昇させるための発光管形状の一
例を示す概略断面図である。FIG. 5 is a schematic sectional view showing an example of the shape of an arc tube for raising the coldest spot temperature.
【図６】失透現象が発生する場所を示す概略断面図であ
る。FIG. 6 is a schematic cross-sectional view showing a place where a devitrification phenomenon occurs.
１ 発光管 ２ 誘導コイル ３ インピーダンス整合器 ４ 高周波電源 ５ 発光管回転装置 ６ 発光管支持棒 1 arc tube 2 induction coil 3 impedance matching device 4 high frequency power supply 5 arc tube rotating device 6 arc tube support rod
───────────────────────────────────────────────────── フロントページの続き (72)発明者 東坂 真吾 大阪府門真市大字門真1048番地松下電工株 式会社内 (72)発明者 小谷 幹 大阪府門真市大字門真1048番地松下電工株 式会社内 (72)発明者 住友 卓 大阪府門真市大字門真1048番地松下電工株 式会社内 (72)発明者 斉見 元洋 大阪府門真市大字門真1048番地松下電工株 式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shingo Higashisaka 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor, Miki Otani, 1048, Kadoma, Kadoma, Osaka Prefecture 72) Inventor Taku Sumitomo 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works Co., Ltd.
Claims (1)
巻かれた誘導コイルに高周波電流を通電し、誘導コイル
の内側に形成される高周波電磁界を発光管内に封入され
ている放電ガスや発光物質に作用させることにより、発
光物質を励起発光させる無電極放電灯装置において、前
記発光管をその回転軸が前記誘導コイルの巻線軸と交差
するように配置して回転させたことを特徴とする無電極
放電灯装置。1. A discharge in which a high-frequency current is applied to an induction coil wound along the outer peripheral wall of a translucent arc tube, and a high-frequency electromagnetic field formed inside the induction coil is sealed in the arc tube. In an electrodeless discharge lamp device that excites and emits a light-emitting substance by acting on a gas or a light-emitting substance, the light-emitting tube is arranged and rotated so that its rotation axis intersects with the winding axis of the induction coil. Characteristic electrodeless discharge lamp device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4344962A JP2800608B2 (en) | 1992-12-25 | 1992-12-25 | Electrodeless discharge lamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4344962A JP2800608B2 (en) | 1992-12-25 | 1992-12-25 | Electrodeless discharge lamp device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06196132A true JPH06196132A (en) | 1994-07-15 |
| JP2800608B2 JP2800608B2 (en) | 1998-09-21 |
Family
ID=18373339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4344962A Expired - Fee Related JP2800608B2 (en) | 1992-12-25 | 1992-12-25 | Electrodeless discharge lamp device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2800608B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6566144B1 (en) | 2000-03-27 | 2003-05-20 | Atrix Laboratories | Cover plate for use in lyophilization |
| US6626870B1 (en) | 2000-03-27 | 2003-09-30 | Artix Laboratories, Inc. | Stoppering method to maintain sterility |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4954756A (en) * | 1987-07-15 | 1990-09-04 | Fusion Systems Corporation | Method and apparatus for changing the emission characteristics of an electrodeless lamp |
| JPH0348836A (en) * | 1989-07-18 | 1991-03-01 | Seiko Epson Corp | Illuminator |
-
1992
- 1992-12-25 JP JP4344962A patent/JP2800608B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4954756A (en) * | 1987-07-15 | 1990-09-04 | Fusion Systems Corporation | Method and apparatus for changing the emission characteristics of an electrodeless lamp |
| JPH0348836A (en) * | 1989-07-18 | 1991-03-01 | Seiko Epson Corp | Illuminator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6566144B1 (en) | 2000-03-27 | 2003-05-20 | Atrix Laboratories | Cover plate for use in lyophilization |
| US6610252B2 (en) | 2000-03-27 | 2003-08-26 | Atrix Laboratories, Inc. | System for use in lyophilization comprising delivery containers and a cover plate |
| US6626870B1 (en) | 2000-03-27 | 2003-09-30 | Artix Laboratories, Inc. | Stoppering method to maintain sterility |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2800608B2 (en) | 1998-09-21 |
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