JPH04112449A - Rare gas discharge lamp - Google Patents
Rare gas discharge lampInfo
- Publication number
- JPH04112449A JPH04112449A JP23041090A JP23041090A JPH04112449A JP H04112449 A JPH04112449 A JP H04112449A JP 23041090 A JP23041090 A JP 23041090A JP 23041090 A JP23041090 A JP 23041090A JP H04112449 A JPH04112449 A JP H04112449A
- Authority
- JP
- Japan
- Prior art keywords
- glass bulb
- discharge lamp
- rare gas
- gas discharge
- band
- 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
- 239000011521 glass Substances 0.000 claims abstract description 47
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052724 xenon Inorganic materials 0.000 claims description 7
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 6
- 238000009413 insulation Methods 0.000 abstract description 12
- 229910000679 solder Inorganic materials 0.000 abstract description 10
- 229920005989 resin Polymers 0.000 abstract description 5
- 239000011347 resin Substances 0.000 abstract description 5
- 239000011888 foil Substances 0.000 abstract description 3
- 238000005476 soldering Methods 0.000 abstract description 3
- 229920001225 polyester resin Polymers 0.000 abstract 1
- 239000004645 polyester resin Substances 0.000 abstract 1
- 229920002050 silicone resin Polymers 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006355 external stress Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 150000003736 xenon Chemical class 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
（１）産業上の利用分野
この発明は内壁に蛍光体膜を被着した管状ガラスバルブ
の中にキセノンガスを主成分とする希ガスを封入し、該
ガラスバルブの外壁に一対の帯状電極を配設したいわゆ
る外壁電極型希ガス放電灯に関し、特に外壁電極の絶縁
保護を確実にして沿面放電を確実に防止し、且つ使用機
器に簡単に電極接続し得る電極端子部の構造に関する。DETAILED DESCRIPTION OF THE INVENTION (1) Field of Industrial Application This invention is a tubular glass bulb whose inner wall is coated with a phosphor film, and in which a rare gas mainly composed of xenon gas is sealed. Regarding a so-called outer wall electrode type rare gas discharge lamp in which a pair of strip-shaped electrodes are arranged on the outer wall, an electrode terminal that particularly ensures insulation protection of the outer wall electrode, reliably prevents creeping discharge, and that can be easily connected to the equipment in use. Regarding the structure of the department.
（２）従来の技術
一般に希ガス放電灯は外径が細く、希ガス放電であるた
め、明るさや放電電圧が周囲温度に殆んど影響されない
、寿命が長い、等の特徴があり、ファクシミリ、ＯＣＲ
等ＯＡ機器の原稿読取用光源や液晶表示装置のバックラ
イトとして注目されている。(2) Conventional technology In general, rare gas discharge lamps have a small outer diameter and use rare gas discharge, so they have characteristics such as brightness and discharge voltage being almost unaffected by ambient temperature, long life, etc. OCR
It is attracting attention as a light source for reading documents in office automation equipment (OA equipment) and as a backlight for liquid crystal display devices.
しかしながら、従来の希ガス放電灯は、例えば特開昭６
２−２８１２５６に開示されているように、内壁に蛍光
体膜を被着した細長いガラスバルブの両端に一対の電極
を封止すると共に、両電極間のガラスバルブの外壁に帯
状の補助電極を添設し、陽光柱を補助電極側に偏寄させ
る構造のものであるから、補助電極近傍の蛍光体膜は有
効に励起されるものの、蛍光体膜全体を効率よく励起す
ることは困難であり、あかるいものが得にくい欠点があ
った。又、放電が不安定となったり、ガラスバルブの軸
方向の照度分布が不均一になる等の問題があった。However, conventional rare gas discharge lamps, for example,
2-281256, a pair of electrodes are sealed at both ends of an elongated glass bulb whose inner wall is coated with a phosphor film, and a strip-shaped auxiliary electrode is attached to the outer wall of the glass bulb between the two electrodes. Because the structure is such that the positive column is biased toward the auxiliary electrode, although the phosphor film near the auxiliary electrode is effectively excited, it is difficult to efficiently excite the entire phosphor film. It had the disadvantage that it was difficult to get bright things. Further, there were problems such as unstable discharge and non-uniform illuminance distribution in the axial direction of the glass bulb.
このため、本出願人は第３図及び第４図に示すように、
管状ガラスバルブ１の内壁に蛍光体膜２を光投射窓３を
残して全面に被着し、内部にキセノンガスを主成分とす
る希ガスを所定量封入して端部を封着ガラス４ａ、４ｂ
で密閉し、該カラスバルブ１の外壁に、ガラスバルブ１
のはヅ全長に亘って一対のアルミ箔よりなる帯状電極５
，６を添設した希ガス放電灯７を出願した。Therefore, as shown in FIGS. 3 and 4, the applicant
A phosphor film 2 is applied to the entire inner wall of the tubular glass bulb 1, leaving a light projection window 3, and a predetermined amount of rare gas mainly composed of xenon gas is sealed inside, and the ends are sealed with glass 4a, 4b
The glass bulb 1 is sealed on the outer wall of the glass bulb 1.
A band-shaped electrode 5 made of a pair of aluminum foils that spans the entire length of Nohazu.
, 6 was applied for rare gas discharge lamp 7.
この希ガス放電灯７は、第５図に示すように、交流電極
８に持続された高周波点灯回路９により、両帯状電極５
．６間に高周波の高電圧（２０〜１００ＫＨｚ、１〜２
ＫＶ）を印加すると、両帯状電極５，６間に挾まれたガ
ラスバルブ１の内部空間に、キセノンガスの放電（励起
線波長１４７０ｍ）を生ずる。このキセノンガスの放電
によりガラスバルブ１内の蛍光体膜２全体が励起され、
その可視光が光投射窓３を通してガラスバルブ１の外部
へ放射されるものである。This rare gas discharge lamp 7, as shown in FIG.
．． High frequency high voltage (20-100KHz, 1-2
When a voltage (KV) is applied, a discharge of xenon gas (excitation line wavelength: 1470 m) is generated in the interior space of the glass bulb 1 sandwiched between both strip electrodes 5 and 6. The entire phosphor film 2 inside the glass bulb 1 is excited by this xenon gas discharge,
The visible light is radiated to the outside of the glass bulb 1 through the light projection window 3.
（３）発明が解決しようとする課題
ところで、上記希ガス放電灯７は、第６図に示すように
、両帯状電極５，６の相対する端部側に夫々ビニール被
覆線１０ａ、ｌｏｂを配し、半田１１ａ、ｌｌｂにより
接続して電極導出すると共に、両帯状電極５，６上を含
みカラスバルブ１の表面上にシリコンレジンの透明な絶
縁性被膜１２を被膜し、更にこの上にポリエステル等の
熱収縮性樹脂チューブ１３を覆せて、外壁電極５．６の
絶縁保護を行なっていた。(3) Problems to be Solved by the Invention By the way, as shown in FIG. 6, the above-mentioned rare gas discharge lamp 7 has vinyl-coated wires 10a and lobes disposed at opposite end sides of both strip-shaped electrodes 5 and 6, respectively. Then, the electrodes are connected by solders 11a and llb, and a transparent insulating film 12 made of silicone resin is coated on the surface of the crow bulb 1, including the tops of both strip electrodes 5 and 6. The heat-shrinkable resin tube 13 was covered to provide insulation protection for the outer wall electrode 5.6.
しかしながら、か）る構造の外壁電極型希カス放電灯７
は、使用機器設備に装着して使用するとき、ビニール被
覆線１０ａ、１０ｂの接続部に外力が加わり断線し切れ
るといった問題があった。又、この接続部上を含め熱収
縮性樹脂チューブ１３が被覆されるが、この部分にすき
間やきれつを生じ、絶縁保護が不充分となる問題があっ
た。However, the outer wall electrode type rare gas discharge lamp 7 with such a structure
However, when the vinyl-coated wires 10a and 10b are connected to each other when they are attached to equipment, an external force is applied to the connection portion of the vinyl-covered wires 10a and 10b, causing the wires to break. Further, although the heat-shrinkable resin tube 13 is coated including the top of this connection part, there is a problem that gaps and cracks occur in this part, resulting in insufficient insulation protection.
従って、本発明は上記問題に鑑みなされたものであり、
上記外壁電極型の希ガス放電灯の絶縁保護を確実にする
と共に、使用機器への電極接続を簡単に行ない得る電極
端子取出し構造を得ることを目的としている。Therefore, the present invention has been made in view of the above problems,
The object of the present invention is to provide an electrode terminal extraction structure that ensures insulation protection of the above-mentioned outer wall electrode type rare gas discharge lamp and also allows easy connection of electrodes to equipment in use.
（４）課題を解決するための手段
このため、本発明は管状ガラスバルブの内壁に蛍光体膜
を被着し、内部にキセノンガスを主成分とする希ガスを
所定量封入して密閉し、該ガラスバルブの外壁に、一対
の帯状電極を互に相対する一端側（電極導出側）をガラ
スバルブの端部近傍迄延在させて配設し、ガラスバルブ
両端部の前記帯状電極上に金属キャップを被嵌して半田
接続すると共に、この半田接続部を含め、ガラスバルブ
上にシリコンレジン等の絶縁被膜や熱収縮チューブを被
着するものである。(4) Means for Solving the Problems For this reason, the present invention covers the inner wall of a tubular glass bulb with a phosphor film, fills the interior with a predetermined amount of rare gas mainly composed of xenon gas, and seals the bulb. A pair of band-shaped electrodes are disposed on the outer wall of the glass bulb, with one end side facing each other (electrode lead-out side) extending to the vicinity of the end of the glass bulb, and metal is placed on the band-shaped electrodes at both ends of the glass bulb. In addition to fitting a cap and making solder connections, an insulating coating such as silicone resin or a heat shrink tube is applied over the glass bulb, including the solder connection portion.
（５）作用
金属キャップをガラスバルブ両端の電極上に被嵌し半田
接続する構造であるから、金属キャップはガラスバルブ
に強固に取付けられ、ビニール配線のように半田接続部
に外部応力等が直接加わることがなく、断線事故が防止
でき、絶縁保護も確実になされる。(5) Function Since the structure is such that the metal cap is fitted over the electrodes at both ends of the glass bulb and connected by soldering, the metal cap is firmly attached to the glass bulb, and external stress etc. is not directly applied to the solder connection part like vinyl wiring. This prevents disconnection accidents and provides reliable insulation protection.
又、上記金属キャップは半田接続後ガラスバルブ外壁に
被着する絶縁被膜形成時にその被膜材料のシリコンレジ
ンが金属キャップとガラスバルブの隙間に充填されて固
着され、ガラスバルブに強固に固定することができる。In addition, when the metal cap is formed with an insulating coating that adheres to the outer wall of the glass bulb after soldering, silicone resin, which is the coating material, is filled into the gap between the metal cap and the glass bulb and is firmly fixed to the glass bulb. can.
（６）実施例 以下、本発明の実施例を図面と共に詳述する。(6) Examples Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明の希ガス放電灯１４の一部破断側断面図
であシバ第６図の希ガス放電灯７と相違する点はガラス
バルブ１の外壁に添設する一対の帯状電極５，６部及び
ビニール被覆線１０ａ、１０ｂによる電極導出部の構造
のみである。この希ガス放電灯１４の帯状電極１５．１
６はアルミ箔からなり、ガラスバルブ１のほず全長に亘
って密着し、互に対向して配設されるが、夫々互に対向
する一端側１５ａ、１６ａはガラスバルブ１の封着端面
近傍迄延在されている。そして、この延在された帯状電
極の端部１５ａ、１５ｂ上には、金属キャップ１７．１
８がガラスバルブ１の両封着端部から被嵌して破着され
、半田１９．１９により固定して接続されている。そし
て、この半田１９１９による接続部を含め、ガラスバル
ブ１の表面上にシリコンレジンの透明な絶縁被膜２０が
被着され、更にこの上からポリエステルの熱収縮樹脂チ
ューブが被覆され、帯状電極１４．１５を２重絶縁保護
している。こ）で、上記金属キャップ１７．１８は、第
２図に拡大図示するように、その内径はガラスバルブ１
の外径より若干大きい目の寸法に設定してガラスバルブ
１の両封着端面に嵌合して装着され、半田１９により夫
々帯状電極１５．１６に固定される。この金属キャップ
１７．１８の被嵌されたガラス１＜ル方よ、上記半田１
９の固定部分を含め、全体をシリコンレジン槽しこしん
せきされ、ガラスバルブ１上番こ絶縁被膜２０が形成さ
れるが、同時に金属キャップ１７．１８とガラスバルブ
１との隙間にも含侵して、金属キャップ１７．１８をガ
ラスノ（ルブｌ【こ強固番こ］・′４定するものである
。FIG. 1 is a partially cutaway side sectional view of a rare gas discharge lamp 14 of the present invention, which differs from the rare gas discharge lamp 7 shown in FIG. , 6 parts and the structure of the electrode lead-out part by the vinyl-coated wires 10a and 10b. Strip electrode 15.1 of this rare gas discharge lamp 14
Reference numeral 6 is made of aluminum foil, and is placed in close contact with the entire length of the glass bulb 1 and facing each other, but one end side 15a, 16a facing each other is near the sealed end surface of the glass bulb 1. It has been extended until. Metal caps 17.1 are placed on the ends 15a and 15b of the extended strip electrodes.
8 are fitted and broken from both sealed ends of the glass bulb 1, and are fixedly connected with solder 19 and 19. A transparent insulating film 20 made of silicone resin is then applied to the surface of the glass bulb 1, including the connection portion formed by the solder 1919, and a polyester heat-shrinkable resin tube is further covered on top of this. is protected by double insulation. As shown in the enlarged view in FIG.
The opening size is set to be slightly larger than the outer diameter of the glass bulb 1, and the glass bulb 1 is fitted onto both sealed end faces of the glass bulb 1, and fixed to the strip electrodes 15 and 16 with solder 19, respectively. This metal cap 17.18 is fitted with the glass 1.
The entire body, including the fixing part 9, is soaked in a silicone resin bath to form an insulating coating 20 on the top of the glass bulb 1, but at the same time, the gap between the metal cap 17, 18 and the glass bulb 1 is also impregnated. Then, the metal caps 17 and 18 are fixed with glass screws.
か）る構成の希ガス放電灯１４は電極端子となるガラス
バルブ１両端の金属キャップ１７．１８を、図示しない
被使用機器のソケットに通常の放電ランプの如く取付け
ることにより装着することができ、極めて取扱操作が容
易となる。The rare gas discharge lamp 14 having the above structure can be installed by attaching the metal caps 17 and 18 on both ends of the glass bulb 1, which serve as electrode terminals, to the socket of a device to be used (not shown) like a normal discharge lamp. It is extremely easy to handle and operate.
又、電極導出部はキャップ構造が採用でき、リド線のよ
うに外部応力で断線するといった不都合が部′消すると
共に、バルブ外壁の電極の絶縁保護も確実になされる。Further, a cap structure can be adopted for the electrode lead-out portion, which eliminates the inconvenience of disconnection due to external stress unlike the lead wire, and also ensures insulation protection of the electrode on the outer wall of the bulb.
（７）発明の効果
以上詳述したように、本発明は内部にキセノンガスを主
成分とする希ガスを封入し、外壁に一対の帯状電極を配
設した希ガス放電灯の両到着端部に金属キャップを被嵌
して、夫々帯状電極と半田接続すると共に、この半田接
続部を含めて、ガラスバルブ上にシリコンレジン等の絶
縁被膜で被覆するよう構成したから、使用機器への電極
導出がきわめて容易となり、且つ、電極接続部の絶縁保
護を確実に行なうことができる。(7) Effects of the Invention As detailed above, the present invention provides both arrival ends of a rare gas discharge lamp in which a rare gas mainly composed of xenon gas is sealed inside and a pair of strip electrodes are disposed on the outer wall. A metal cap is fitted over the glass bulb, and the strip electrodes are soldered to each other, and the glass bulb is coated with an insulating film such as silicone resin, including the solder connection parts, so that the electrodes can be led out to the equipment used. This makes it extremely easy to provide insulation protection for the electrode connection portion.
第１図は本発明の希ガス放電灯の一部破断側断面図、第
２図は第１図の希ガス放電灯の要部拡大断面図、第３図
は本発明の前提となる希ガス放電灯の一部破断側面図、
第４図は第３図のＩＶ−ＩＶ線から見た断面図、第５図
は希ガス放電灯の点灯回路図、第６図は第３図の希ガス
放電灯の電極導出構造を示す一部破断側面図である。
■・・・ガラスバルブ
２・−・蛍光体膜
５．６・・・帯状電極
１４・・・希ガス放電灯
１５．１６・・・帯状電極
１７．１８−−・金属キャップ
２０・・・絶縁性被膜
２１・・・熱収縮性チューブ
第１図
にシ吃叶０４イ大勿り電灯の〜歌終ｂ（順儂１明゛６自
図第２図Fig. 1 is a partially broken side sectional view of the rare gas discharge lamp of the present invention, Fig. 2 is an enlarged sectional view of the main part of the rare gas discharge lamp of Fig. 1, and Fig. 3 is a rare gas discharge lamp which is the premise of the present invention. Partially cutaway side view of a discharge lamp,
Figure 4 is a sectional view taken from line IV-IV in Figure 3, Figure 5 is a lighting circuit diagram of the rare gas discharge lamp, and Figure 6 is a diagram showing the electrode lead-out structure of the rare gas discharge lamp in Figure 3. It is a partially broken side view. ■...Glass bulb 2...Fluorescent film 5.6...Strip electrode 14...Rare gas discharge lamp 15.16...Strip electrode 17.18--Metal cap 20...Insulation Sexual coating 21...Heat-shrinkable tube (Fig. 1).
Claims (1)
セノンガスを主成分とする希ガスを所定量封入して密閉
し、該ガラスバルブの外壁に一対の帯状電極を互に相対
する一端側をガラスバルブの端部近傍迄延在して配設し
、ガラスバルブ両端の前記延在された両帯状電極上に夫
々金属キャップを被嵌して電極接続し、この電極接続部
を含めてガラスバルブ上に絶縁性被膜を形成したことを
特徴とする希ガス放電灯。A phosphor film is coated on the inner wall of a tubular glass bulb, a predetermined amount of rare gas mainly composed of xenon gas is sealed inside, and a pair of strip electrodes are attached to the outer wall of the glass bulb at one end facing each other. The ends of the glass bulb are arranged so as to extend to the vicinity of the ends of the glass bulb, and metal caps are respectively fitted onto the extended band-shaped electrodes at both ends of the glass bulb to connect the electrodes, including the electrode connection portions. A rare gas discharge lamp characterized by an insulating film formed on a glass bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23041090A JPH04112449A (en) | 1990-08-31 | 1990-08-31 | Rare gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23041090A JPH04112449A (en) | 1990-08-31 | 1990-08-31 | Rare gas discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04112449A true JPH04112449A (en) | 1992-04-14 |
Family
ID=16907454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23041090A Pending JPH04112449A (en) | 1990-08-31 | 1990-08-31 | Rare gas discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04112449A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008204780A (en) * | 2007-02-20 | 2008-09-04 | Ushio Inc | Discharge lamp, manufacturing method of discharge lamp, discharge lamp unit, and backlight device |
-
1990
- 1990-08-31 JP JP23041090A patent/JPH04112449A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008204780A (en) * | 2007-02-20 | 2008-09-04 | Ushio Inc | Discharge lamp, manufacturing method of discharge lamp, discharge lamp unit, and backlight device |
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