JP2729100B2 - Rare gas discharge lamp - Google Patents
Rare gas discharge lampInfo
- Publication number
- JP2729100B2 JP2729100B2 JP6636690A JP6636690A JP2729100B2 JP 2729100 B2 JP2729100 B2 JP 2729100B2 JP 6636690 A JP6636690 A JP 6636690A JP 6636690 A JP6636690 A JP 6636690A JP 2729100 B2 JP2729100 B2 JP 2729100B2
- Authority
- JP
- Japan
- Prior art keywords
- glass bulb
- discharge lamp
- rare gas
- gas discharge
- power supply
- 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
Links
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Discharge Lamp (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、キセノガスを主成分とするガスを封入し
た希ガス放電灯、特にガラスバルブ外壁に一対の帯状電
極を添設した希ガス放電灯の給電線の接続に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rare gas discharge lamp in which a gas containing xeno gas as a main component is enclosed, and in particular, a rare gas discharge lamp in which a pair of strip electrodes are provided on the outer wall of a glass bulb. The connection of the power supply line.
［従来の技術］ この種キセノンガスを封入する希ガス放電灯は、バル
ブの外径が細く、水銀を含まない希ガス放電であるた
め、明るさが周囲温度に殆んど影響を受けない、光束の
立上り特性がよい等の特徴を生かし、ファクシミリの原
稿読取光源、液晶装置のバックライト等OA用光源として
注目されている。[Prior art] A rare gas discharge lamp in which xenon gas is sealed is a rare gas discharge that has a small bulb outer diameter and does not contain mercury. Therefore, brightness is hardly affected by ambient temperature. Utilizing features such as good rising properties of light flux, it has been attracting attention as an OA light source such as a facsimile original reading light source and a backlight of a liquid crystal device.
しかしながら、従来の希ガス放電灯は、例えば特開昭
62−281256に開示されているように、内面に蛍光体膜を
塗膜したガラスバルブの両端に一対の電極を封入する一
方、両電極間のガラスバルブの外壁に細長短形状の補助
電極を添設し、両電極間に高周波電圧を印加して内部の
放電を補助電極側に引き寄せる構造のものであった。従
って、補助電極近傍の蛍光体膜は有効に励起されるもの
の蛍光体膜全体としての励起効率が悪くなり、明るいも
のが得にくい、バルブ軸方向の照度分布が不均一とな
る、安定な放電が得にくい等の問題があった。However, conventional rare gas discharge lamps are disclosed in
As disclosed in JP-A-62-281256, a pair of electrodes is sealed at both ends of a glass bulb having a phosphor film coated on the inner surface, and an elongated and short-shaped auxiliary electrode is attached to the outer wall of the glass bulb between the two electrodes. And a structure in which a high-frequency voltage is applied between the two electrodes to draw the internal discharge toward the auxiliary electrode. Therefore, although the phosphor film near the auxiliary electrode is effectively excited, the excitation efficiency of the whole phosphor film is deteriorated, it is difficult to obtain a bright one, the illuminance distribution in the bulb axis direction becomes non-uniform, and stable discharge is performed. There were problems such as difficulty in obtaining.
このため、発明者らは、内面に蛍光体膜を被着し、内
部にキセノンガスを主成分とするガスを封入した密閉ガ
ラスバルブの外壁に、一対の帯状電極を添設した希ガス
放電灯を発明した（特願平１−161958平成元年６月23日
付）。この希ガス放電灯は両電極間に高周波電圧を印加
することにより、バルブ内の放電空間にはバルブ軸と直
交方向の放電が生じ、バルブ軸方向全域に均一且つ安定
な放電が得られるものである。For this reason, the present inventors have developed a rare gas discharge lamp in which a pair of strip electrodes are provided on the outer wall of a sealed glass bulb in which a phosphor film is coated on the inner surface and a gas mainly composed of xenon gas is sealed inside. (Japanese Patent Application No. 1-161958, dated June 23, 1989). By applying a high-frequency voltage between both electrodes, this rare gas discharge lamp generates a discharge in a direction perpendicular to the bulb axis in the discharge space inside the bulb, and a uniform and stable discharge is obtained in the entire area of the bulb axis. is there.
［発明が解決しようとする課題］ ところで、上記バルブ外壁に帯状電極を添設する希ガ
ス放電灯は通常30〜100KHzで1000V乃至2000Vの高周波高
電圧を印加する必要があるが、バルブ径が6mm程度と細
いため両電極間のバルブ外壁で沿面放電を生じる危険性
もあり、特に、電極が円形の丸るいバルブの外壁に沿っ
て帯状に形成されるものであるから、機器装置へ取付け
るための給電線への接続を絶縁性よく、且つ確実に取付
け得る給電構造の開発が要望されていた。[Problems to be Solved by the Invention] By the way, a rare gas discharge lamp in which a strip electrode is attached to the outer wall of the bulb usually needs to apply a high frequency high voltage of 1000 V to 2000 V at 30 to 100 KHz, but the bulb diameter is 6 mm. There is also a danger of creeping discharge on the outer wall of the bulb between the two electrodes due to its small size.Especially, since the electrodes are formed in a band along the outer wall of the circular round bulb, it is difficult to mount them on equipment. There has been a demand for the development of a power supply structure that can be securely attached to a power supply line with good insulation properties.
［課題を解決するための手段］ 上記目的を達成するため、本発明に於いては、ガラス
バルブの外壁に添設する両帯状電極には、ビニール被覆
の給電線が直接半田付けして接続される。そして、給電
線の接続された希ガス放電灯は該接続部を含め帯状電極
及びガラスバルブ上に絶縁膜が被覆される。更に要すれ
ば上記給電線の接続部上にキャップを被せ、ガラスバル
ブに固定するキャップ付構造が採用される。[Means for Solving the Problems] In order to achieve the above object, in the present invention, a vinyl-coated power supply line is connected to both band-shaped electrodes attached to the outer wall of the glass bulb by direct soldering. You. In the rare gas discharge lamp to which the power supply line is connected, the insulating film is coated on the strip electrode and the glass bulb including the connection portion. Further, if necessary, a structure with a cap is employed in which a cap is put on the connection part of the above-mentioned power supply line and fixed to the glass bulb.
［作用］ 給電線と帯状電極との接続部は半田接続であり、電気
的、機械的に確実な接続がなされる。又、接続部を含め
両帯状電極上及びガラスバルブ上全面に絶縁被膜が形成
されるため、帯状電極間の沿面放電は勿論、給電線接続
部の絶縁破壊が防止される。更に、給電線接続部を被覆
するキャップを設けたから、使用機器への装着が容易と
なる。[Operation] The connection portion between the feeder line and the strip electrode is a solder connection, and a reliable electrical and mechanical connection is made. Further, since the insulating coating is formed on both the strip electrodes and the entire surface of the glass bulb including the connection portion, not only the creeping discharge between the strip electrodes but also the dielectric breakdown of the feed line connection portion is prevented. Further, since the cap for covering the power supply line connection portion is provided, it is easy to mount the device on the device to be used.
［実施例］ 以下、本発明の実施例を図面と共に説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明が適用される給電線が接続される希ガ
ス放電灯１の一部破断側面図で、細長ガラスバルブ２の
内面には第２図に示すように、光投射窓３を残して蛍光
体膜４が被着され、両端部がシールガラス５で封着され
ると共にガラスバルブ２の内部にはキセノンガスを主成
分とするガスが数トールの封入圧で充填されている。ガ
ラスバルブ２の外壁には、光投射窓３の両側に沿って、
アルミ箔からなる一対の帯状電極６、７がガラスバルブ
２の全長に亘って被着されている。かかる構造の希ガス
放電灯１は両電極６、７間に1000V〜2000Vで30〜100KHz
の高周波電圧を印加することにより、ガラスバルブ２の
帯状電極６、７間の内部空間にキセノンガスの放電を生
じ、蛍光体膜４を励起してその励起光を光投射窓３より
放射するものである。FIG. 1 is a partially cut-away side view of a rare gas discharge lamp 1 to which a power supply line to which the present invention is applied is connected. As shown in FIG. The phosphor film 4 is left as it is, and both ends are sealed with a sealing glass 5 and the inside of the glass bulb 2 is filled with a gas mainly composed of xenon gas at a filling pressure of several torr. On the outer wall of the glass bulb 2, along both sides of the light projection window 3,
A pair of strip electrodes 6 and 7 made of aluminum foil are attached over the entire length of the glass bulb 2. The rare gas discharge lamp 1 having such a structure is provided between the electrodes 6 and 7 at 1000 V to 2000 V at 30 to 100 KHz.
Is applied to generate a discharge of xenon gas in the internal space between the strip electrodes 6 and 7 of the glass bulb 2 to excite the phosphor film 4 and emit the excitation light from the light projection window 3. It is.
第３図は上記希ガス放電灯１の両帯状電極６、７を不
図示の高周波電源装置に接続するための給電線８、９の
接続構造を示すものであり、ビニール被覆の各給電線
８、９の先端の接続部10、11はアルミ箔からなる帯状電
極６、７の端部上に半田接続されている。この半田接続
は、先づアルミ箔の帯状電極６、７の給電線８、９の接
続予定箇所に、先づアルミ半田を予備半田しておき、次
いで給電線８、９をこの予備半田上に半田付けすると半
田付けが容易にできる。FIG. 3 shows a connection structure of power supply lines 8 and 9 for connecting both band electrodes 6 and 7 of the rare gas discharge lamp 1 to a high-frequency power supply device (not shown). , 9 are soldered to the ends of the strip electrodes 6, 7 made of aluminum foil. In this solder connection, aluminum solder is first preliminarily soldered to a portion where the power supply lines 8 and 9 of the aluminum foil strip electrodes 6 and 7 are to be connected, and then the power supply lines 8 and 9 are placed on the preliminary solder. Soldering facilitates soldering.
次に、このように給電線８、９が各帯状電極６、７に
半田接続された希ガス放電灯１は少なくともその接続部
10、11を含みガラスバルブ２の全体をシリコン絶縁オイ
ル槽に浸し、帯状電極６、７上からガラスバルブ２上に
絶縁被膜12を塗膜する。かかる構造の希ガス放電灯１
は、給電線８、９の接続部10、11を含むガラスバルブ２
上に絶縁被膜12が形成されており、1000V以上の高周波
電源を印加しても、ガラスバルブ２の表面の帯状電極
６、７間の沿面放電や給電線８、９の接続部10、11間で
絶縁破壊を生じることがない。従って、給電線８、９の
他端を適宜装置の高周波電源に接続して使用することが
できる。Next, the rare gas discharge lamp 1 in which the power supply lines 8 and 9 are soldered to the respective strip-shaped electrodes 6 and 7 in this manner has at least a connection portion thereof.
The entire glass bulb 2 including 10 and 11 is immersed in a silicon insulating oil bath, and an insulating coating 12 is applied on the glass bulb 2 from above the strip electrodes 6 and 7. Rare gas discharge lamp 1 having such a structure
Is the glass bulb 2 including the connection parts 10 and 11 of the feed lines 8 and 9
An insulating coating 12 is formed on the upper surface of the glass bulb 2. Even when a high-frequency power of 1000 V or more is applied, a creeping discharge between the strip electrodes 6 and 7 on the surface of the glass bulb 2 and a connection between the connecting portions 10 and 11 of the power supply lines 8 and 9 are formed. No dielectric breakdown occurs. Therefore, the other ends of the power supply lines 8 and 9 can be connected to the high-frequency power supply of the apparatus as needed.
又、第４図は給電線８、９の各帯状電極６、７への接
続部10、11を絶縁キャップ13で被覆支持する構造を示
す。このキャップ13は希ガス放電灯１のガラスバルブ２
端部が嵌入される円筒状凹部14及び、この凹部に連通し
給電線８、９が挿通される挿通孔15、16及び装置取付用
の座部17を有する。従って、第３図の如く給電線８、９
を取付けた後に、キャップ12の挿通孔15、16に給電線
８、９を夫々挿通させ、ガラスバルブ２の端部を凹部14
に嵌入する。FIG. 4 shows a structure in which connecting portions 10 and 11 of the power supply lines 8 and 9 to the respective strip electrodes 6 and 7 are covered with an insulating cap 13 and supported. The cap 13 is a glass bulb 2 of the rare gas discharge lamp 1.
It has a cylindrical concave portion 14 into which the end is fitted, insertion holes 15 and 16 communicating with the concave portion and through which the power supply lines 8 and 9 are inserted, and a seat 17 for mounting the device. Therefore, as shown in FIG.
Then, feed wires 8 and 9 are inserted through the insertion holes 15 and 16 of the cap 12, respectively, and the end of the glass bulb 2 is
To fit.
その後、ガラスバルブ12の嵌入された凹部14のガラス
バルブ２との隙間18にエポキシオ樹脂を注入し固着す
る。Thereafter, epoxy resin is injected and fixed in the gap 18 between the glass bulb 2 and the recess 14 into which the glass bulb 12 is fitted.
かかる構造に依れば希ガス放電灯１は通常の放電灯と
同様キャップ12部を介して装置に取付けて使用すること
ができる。According to this structure, the rare gas discharge lamp 1 can be used by being attached to the apparatus via the cap 12 like a normal discharge lamp.
［発明の効果］ 以上のように、本発明はガラスバルブの外面に帯状電
極を設け、各帯状電極にビニール被覆給電線を直接半田
付けにより接続し、この接続部を含めてガラスバルブ上
に絶縁被膜を設ける構成としたから、1000V以上の高電
圧高周波電源に接続しても、ガラスバルブ上で沿面放電
を生じたり、給電線接続部で絶縁破壊することがなく、
安全に点灯させることが出来る。[Effects of the Invention] As described above, according to the present invention, a strip electrode is provided on the outer surface of a glass bulb, and a vinyl-coated power supply line is directly connected to each strip electrode by soldering. Even when connected to a high-voltage high-frequency power supply of 1000 V or more, there is no creeping discharge on the glass bulb or dielectric breakdown at the feeder line connection,
It can be turned on safely.
第１図は本発明が適用される希ガス放電灯の一部破断側
面図、第２図は第１図のII−II線から見た断面図、第３
図は第１図の希ガス放電灯の給電線接続構造の断面図、
第４図は第３図の希ガス放電灯のソケット取付構造の断
面図である。 １……希ガス放電灯、２……ガラスバルブ、４……蛍光
体膜、６、７……帯状電極、8,9……給電線、10,11……
接続部、12……絶縁被膜、13……キャップ、14……凹
部、15,16……挿通孔。FIG. 1 is a partially cutaway side view of a rare gas discharge lamp to which the present invention is applied, FIG. 2 is a sectional view taken along line II-II of FIG.
The figure is a cross-sectional view of the power supply line connection structure of the rare gas discharge lamp of FIG. 1,
FIG. 4 is a sectional view of the socket mounting structure of the rare gas discharge lamp of FIG. 1 ... Rare gas discharge lamp, 2 ... Glass bulb, 4 ... Phosphor film, 6,7 ... Strip electrode, 8,9 ... Feed line, 10,11 ...
Connection part, 12 ... insulating coating, 13 ... cap, 14 ... recess, 15, 16 ... insertion hole.
───────────────────────────────────────────────────── フロントページの続き 審査官 下中 義之 (56)参考文献 特開 昭63−146343（ＪＰ，Ａ) 特開 昭63−98163（ＪＰ，Ａ) 特開 平１−231260（ＪＰ，Ａ) 特開 昭61−185857（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page Examiner Yoshiyuki Shimonaka (56) References JP-A-63-146343 (JP, A) JP-A-63-98163 (JP, A) JP-A-1-231260 (JP, A) JP-A-61-185857 (JP, A)
Claims (2)
ガスを主成分とするガスを封入したガラスバルブの外面
に一対の帯状電極を対向して設け、この帯状電極に給電
線を半田接続すると共に、接続部を含めガラスバルブ上
に絶縁被膜を被着したことを特徴とする希ガス放電灯。1. A pair of strip electrodes are provided on an outer face of a glass bulb in which a phosphor film is adhered on an inner face and a gas mainly composed of xenon gas is sealed inside, and a feeder line is connected to the strip electrodes. A rare gas discharge lamp characterized by being connected by soldering and having an insulating film applied on a glass bulb including a connection portion.
凹部に連通し給電線が挿通される挿通孔を有するキャッ
プがガラスバルブ端部に装着されたことを特徴とする特
許請求の範囲第１項記載の希ガス放電灯。2. A cap having a concave portion into which the glass bulb is fitted and a cap having an insertion hole communicating with the concave portion and through which a power supply line is inserted is attached to an end portion of the glass bulb. The rare gas discharge lamp according to the item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6636690A JP2729100B2 (en) | 1990-03-16 | 1990-03-16 | Rare gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6636690A JP2729100B2 (en) | 1990-03-16 | 1990-03-16 | Rare gas discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03269950A JPH03269950A (en) | 1991-12-02 |
| JP2729100B2 true JP2729100B2 (en) | 1998-03-18 |
Family
ID=13313779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6636690A Expired - Fee Related JP2729100B2 (en) | 1990-03-16 | 1990-03-16 | Rare gas discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2729100B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19718395C1 (en) * | 1997-04-30 | 1998-10-29 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Fluorescent lamp and method of operating it |
| JP4946552B2 (en) * | 2007-03-19 | 2012-06-06 | ウシオ電機株式会社 | External electrode type rare gas fluorescent lamp |
| JP4905332B2 (en) * | 2007-11-21 | 2012-03-28 | ウシオ電機株式会社 | Fluorescent lamp |
-
1990
- 1990-03-16 JP JP6636690A patent/JP2729100B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03269950A (en) | 1991-12-02 |
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