JPH04206336A - Fluorescent tube for light emitting type light source - Google Patents
Fluorescent tube for light emitting type light sourceInfo
- Publication number
- JPH04206336A JPH04206336A JP33551390A JP33551390A JPH04206336A JP H04206336 A JPH04206336 A JP H04206336A JP 33551390 A JP33551390 A JP 33551390A JP 33551390 A JP33551390 A JP 33551390A JP H04206336 A JPH04206336 A JP H04206336A
- Authority
- JP
- Japan
- Prior art keywords
- transparent electrode
- film
- fluorescent screen
- glass bulb
- metal back
- 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
- 239000011521 glass Substances 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 21
- 229910052799 carbon Inorganic materials 0.000 description 21
- 239000002184 metal Substances 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000002950 deficient Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 150000002902 organometallic compounds Chemical class 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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］
本発明は、発光型光源用蛍光管に係わり、特に陽極電極
の電極構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fluorescent tube for a light emitting type light source, and particularly to an electrode structure of an anode electrode.
［従来の技術］
第２図は従来の発光型光源用蛍光管の構成を示す要部断
面図である。同図において、１はガラスバルブ、２はス
テムガラス、３は排気管、４はリードビン、５はステム
、６はカソード、７はアノードリング、８は蛍光面、９
はＡＩメタルバック層、１０はアノードリンク７とＡ１
メタルバック層９とを電気的にコンタクトするカーボン
膜である。[Prior Art] FIG. 2 is a sectional view of a main part showing the structure of a conventional fluorescent tube for a light emitting type light source. In the figure, 1 is a glass bulb, 2 is a stem glass, 3 is an exhaust pipe, 4 is a lead bin, 5 is a stem, 6 is a cathode, 7 is an anode ring, 8 is a fluorescent screen, 9
is the AI metal back layer, 10 is the anode link 7 and A1
This is a carbon film that electrically contacts the metal back layer 9.
［発明が解決しようとする課題］
しかしなから、従来の発光型光源用蛍光管は、陽極電極
としてカーボンを塗布したカーボン膜１０を使用してい
たので、以下に述べるような問題があった。[Problems to be Solved by the Invention] However, since the conventional fluorescent tube for a light emitting type light source uses a carbon film 10 coated with carbon as an anode electrode, there are problems as described below.
（１）カーボン膜１０が極めて多孔質なため、水分。(1) Since the carbon film 10 is extremely porous, it will not contain moisture.
ガスなどを吸蔵し易く、そのため、管球化後、温度、印
加電圧などの影響により、管内への放出ガス量が大きく
なり、蛍光面へのガス吸着による輝度劣化、蛍光体変質
および異常放電によるカソードへのダメージなどが増加
する。これらは表示品位の低下、不良品の増加に繋がる
。It easily absorbs gas, etc., and therefore, after the tube is formed, the amount of gas released into the tube increases due to the effects of temperature, applied voltage, etc., resulting in brightness deterioration due to gas adsorption to the phosphor screen, phosphor deterioration, and abnormal discharge. Damage to the cathode increases. These lead to a decrease in display quality and an increase in defective products.
（２）カーボン膜１０とＡｌメタルバック層９との電気
的コンタクトを十分にとるためには、両者を確実に接合
させる必要があるが、カーボン膜１０の場合、■膜表面
の凹凸が激しいので、ＡＩ蒸着膜により形成されるＡｌ
メタルバック層９が途中で切れる場合がある。■カーボ
ン膜１０は不透明なため、蛍光面の下側まで形成するこ
とかできずく要するに発光を取り出す側にはカーボン膜
１０か存在してはならない）、そのため、ＡＩメタルバ
ック層９とのコンタク１一部分はカーホン膜１０の端部
のみに限られる。(2) In order to make sufficient electrical contact between the carbon film 10 and the Al metal back layer 9, it is necessary to reliably bond them together; however, in the case of the carbon film 10, , Al formed by AI vapor deposition film
The metal back layer 9 may break in the middle. (Since the carbon film 10 is opaque, it cannot be formed all the way to the bottom of the phosphor screen (in other words, the carbon film 10 must not exist on the side from which the emitted light is extracted). Therefore, contact 1 with the AI metal back layer 9 A portion is limited to only the ends of the carphone membrane 10.
（３）カーボン膜１０の形成に用いるカーボン液は粉体
カーボンと水と少量の結着剤とを混合したものであり、
カーボン膜形成後、過剰な機械的な振動を与えたり、擦
ったりすると、カーボン膜１０が剥離、脱落し易く、そ
の脱落したカーボン片が電極間に入ると、異常放電を引
き起こしたり、また、蛍光面に付着すると、発光を阻害
したりして不良品が増加する。(3) The carbon liquid used to form the carbon film 10 is a mixture of powdered carbon, water, and a small amount of binder,
After the carbon film is formed, if excessive mechanical vibration or rubbing is applied, the carbon film 10 is likely to peel off or fall off, and if the fallen carbon pieces get between the electrodes, they may cause abnormal discharge or cause fluorescence. If it adheres to surfaces, it may inhibit light emission and increase the number of defective products.
（４）カーボン膜１０は黒色で不透明であるため、外側
から管球の内部構造を完全には見ることができず、その
ため、ゲッター膜の飛散状況、ＡＩメタルバック層９の
状態、蛍光面８の凹凸の状態などを検査することは全く
不可能であり、封排気工程後の検査、不良品の解析など
に多大な支障かあった。(4) Since the carbon film 10 is black and opaque, the internal structure of the tube cannot be completely seen from the outside. It is completely impossible to inspect the state of unevenness, etc., and this causes a great deal of trouble in inspections after the sealing and evacuation process, and in analysis of defective products.
（５）カーボン液を用いてカーボン膜１０を形成する場
合、カーボン液の塗布量を適切にコントロールしないと
、液たれ°゛か発生し、蛍光面８を形成すべき部分まで
カーボンか付着し、不良となる。(5) When forming the carbon film 10 using a carbon liquid, if the amount of carbon liquid applied is not properly controlled, dripping may occur, and carbon may adhere to the area where the phosphor screen 8 is to be formed. It becomes defective.
また、使用中のカーホン液は放置すると、容器の底に沈
殿するため、常時攪拌しておく必要かあり、液の管理に
工数を要していた。In addition, if the carphone liquid in use is left to stand, it will settle to the bottom of the container, so it must be constantly stirred, which requires a lot of man-hours to manage the liquid.
［課題を解決するための手段］
このような課題を解決するために本発明による発光型光
源用蛍光管は、陽極電極の一部かカラス基体上に密着し
た透明導電膜かうなる透明電極にて形成されかつこの透
明電極上の一部にはメタルバックされた蛍光面が形成さ
れている。[Means for Solving the Problems] In order to solve the above problems, the fluorescent tube for a light emitting type light source according to the present invention uses a transparent electrode consisting of a part of the anode electrode or a transparent conductive film in close contact with the glass substrate. A metal-backed fluorescent screen is formed on a portion of the transparent electrode.
−［作用］
本発明においては、陽極電極の一部に透明導電膜からな
る透明電極を用いたことによって透明電極がガラスバル
ブ内に強固に付着され、メタルバック層との十分な電気
的コンタクトが得られるとともに透明電極の剥離、脱落
および放出ガスの発生が解消される。- [Function] In the present invention, by using a transparent electrode made of a transparent conductive film as a part of the anode electrode, the transparent electrode is firmly attached inside the glass bulb, and sufficient electrical contact with the metal back layer is achieved. At the same time, peeling and falling off of the transparent electrode and generation of released gas are eliminated.
［実施例コ 以下、図面を用いて本発明の実施例を詳細に説明する。[Example code] Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明による発光型光源用蛍光管の一実施例に
よる構成を示す要部断面図であり、前述の図と同一部分
には同一符号を付しである。同図において、所定のガラ
スバルブ１を洗浄、乾燥し、このガラスバルブ１内の所
定位置には透明導電膜からなる透明電極１１が有機金属
化合物の熱分解法にて被着されている。この透明電極１
１の形成方法としては、例えば所定のガラスバルブ１内
へＩｎ、ＳｎまたはＺｎのうち少なくとも１種類を含ん
だ有機金属化合物溶液を注入し、一定時間後、吸引除去
する。この状態でガラスバルブ１内に有機金属化合物が
塗布された状態になるので、次いで５００℃、１０分の
大気中で加熱し、分解してガラスバルブ１内に透明電極
１１を形成する。また、他の方法としては、所定のガラ
スバルブ１を真空容器内にセツティングしくマスクは必
要に応じて装着する＞、Ｉｎ、ＳｎまたはＺｎのうち少
なくとも１種類を含んだ酸化物をターゲットとしてガラ
スバルブ１の内面にスパッタリングを行なう。このスパ
ッタリング時のＡｒ圧は２Ｘ１０−’Ｔｏｒｒ、ＲＦ出
力は３００Ｗ、１０分で膜厚的１０００Ａの透明電極１
１を形成しても良い。さらにこの透明電極１１を形成す
る他の方法としては、真空蒸着法、電子ヒーム蒸着法。FIG. 1 is a sectional view of a main part showing the structure of an embodiment of a fluorescent tube for a light emitting type light source according to the present invention, and the same parts as in the previous figures are given the same reference numerals. In the figure, a predetermined glass bulb 1 is cleaned and dried, and a transparent electrode 11 made of a transparent conductive film is adhered to a predetermined position inside the glass bulb 1 by a thermal decomposition method of an organometallic compound. This transparent electrode 1
1, for example, an organometallic compound solution containing at least one of In, Sn, or Zn is injected into a predetermined glass bulb 1, and removed by suction after a certain period of time. In this state, the organometallic compound is coated inside the glass bulb 1, so it is then heated in the atmosphere at 500° C. for 10 minutes to decompose and form the transparent electrode 11 inside the glass bulb 1. Another method is to set a predetermined glass bulb 1 in a vacuum container and attach a mask as necessary. Sputtering is performed on the inner surface of the bulb 1. During this sputtering, the Ar pressure was 2X10-'Torr, the RF output was 300W, and the transparent electrode 1 had a film thickness of 1000A in 10 minutes.
1 may be formed. Further, other methods for forming the transparent electrode 11 include a vacuum evaporation method and an electron beam evaporation method.
高周波加熱法、ＣＶＤ法、無電解メツキ法なとかあり、
それらを利用できることは勿論である。次に内面に透明
電極１１が形成されたガラスバルブ１内に蛍光体を注入
して沈殿法にてガラスバルブ１の頭部に沈殿させ、蛍光
面８を形成する。乾燥後、この蛍光面８のウェッティン
グを行い、この蛍光面８の表面上にフィルミング膜を形
成した後、ＡＩのメタルバックを行い、フィルミング膜
上に８００〜２００ＯＡ程度のＡＩ蒸着膜からなるＡＩ
メタルバック層９の形成を行なう。次いで約４６０℃、
１０分程度の焼成を行い、フィルミング膜を燃焼分解さ
せてＡＩメタルバック層９を蛍光面８上に付着させて光
源管用の蛍光面を完成させる。次にカソード６およびア
ノードリング７をアセンブリーしたステム５をガラスバ
ルブ１内に挿入し、ステムガラス２をカスバーナで加熱
し、カラスを溶かしてガラスバルブ１とステムガラス２
とを熔融させて管球を形成する。次にこの管球の排気管
３がら空気を排気して内部を真空にした後、封じ切りを
行って光源管を完成する。There are high frequency heating methods, CVD methods, electroless plating methods, etc.
Of course, you can use them. Next, a phosphor is injected into the glass bulb 1 having the transparent electrode 11 formed on its inner surface and deposited on the top of the glass bulb 1 by a precipitation method, thereby forming the phosphor screen 8. After drying, this phosphor screen 8 is wetted to form a filming film on the surface of this phosphor screen 8, and then an AI metal back is applied, and an AI vapor deposited film of about 800 to 200 OA is deposited on the filming film. AI that will become
A metal back layer 9 is formed. Then about 460℃,
Baking is performed for about 10 minutes to burn and decompose the filming film, and the AI metal back layer 9 is attached onto the phosphor screen 8 to complete the phosphor screen for the light source tube. Next, the stem 5 with the cathode 6 and anode ring 7 assembled is inserted into the glass bulb 1, and the stem glass 2 is heated with a gas burner to melt the glass and the glass bulb 1 and the stem glass 2 are heated.
and are melted to form a tube. Next, the air is evacuated from the exhaust pipe 3 of this tube to create a vacuum inside, and the tube is then sealed to complete the light source tube.
このように構成された発光型光源用蛍光管は、カソード
６に電流を流して電子ｅを発生させ、グリッドで電子ｅ
を引き出し、数ＫＶを印加したアノードリング７にて加
速して電子ｅを蛍光面８に射突させる。ここでアノード
リンク７と透明電極１］とＡｌメタルバック層９とは互
いに電気的に結合されているので、アノードリング７に
印加された電圧はＡｌメタルバック層９に直接印加され
ることになり、数ＫＶの電圧で加速された電子ｅはＡ１
メタルバック層９を通り抜けて蛍光面８に入射し、蛍光
体を発光させる。発光した光は蛍光体層を通してガラス
バルブ１の頭部から外部に放射されるとともにＡ＋メタ
ルハ・・ツク層（ンへ向かった光はここで反射されて同
様にガラスバルブ１の頭部から外部に放射されることに
なる。The fluorescent tube for a light-emitting light source configured in this way generates electrons e by passing a current through the cathode 6, and the grid generates electrons e.
is pulled out, accelerated by an anode ring 7 to which several KV is applied, and the electrons e are made to strike the phosphor screen 8. Here, since the anode link 7, the transparent electrode 1] and the Al metal back layer 9 are electrically coupled to each other, the voltage applied to the anode ring 7 is directly applied to the Al metal back layer 9. , the electron e accelerated with a voltage of several KV is A1
The light passes through the metal back layer 9 and enters the phosphor screen 8, causing the phosphor to emit light. The emitted light is radiated to the outside from the head of the glass bulb 1 through the phosphor layer, and the light directed to the A+ metal layer is reflected here and similarly radiated from the head of the glass bulb 1 to the outside. It will be radiated.
このような構成によると、透明型ｗ！１１はカーボン膜
と異なり、極めて平滑で緻密な非粒状性の膜構造を有し
ているため、水分、吸蔵ガスなどはカーボンに比べて極
めて少なく、したがって放出ガス量が少なく、蛍光面８
の輝度劣化および放出ガスに起因する異常放電によるカ
ソード劣化が閉著に低減できる。また、この透明電極１
１は極めて平滑で緻密なため、この透明電極１１上にＡ
ｌメタルバック層９を形成しても十分に電気的コンタク
トをとることかできる。さらに透明導電膜からなる透明
電極１１は可視光〜赤外線領域にて実質的に透明である
ため、この透明電極１１上に蛍光面８を形成し、発光さ
せても何ら支障はなく、発光を外部に取り出すことかで
きる。したかつて蛍光面８の下側（要するにガラスバル
ブ１と蛍光面８との間）に透明電極１１か形成できるの
で、蛍光面８の上層にＡｌメタルバック層９を形成した
場合、蛍光面８の端部（ここは蛍光体かまばらに付着し
ているので、ピンホールかある）を通して透明電極１１
−とＡｌメタルバック層９とのコンタクトをとることか
でき、したかってコンタクト不良は皆無となる。また、
透明電極１］−はガラスバルブ１の内面に強固に付着さ
れるので、多少の振動や摩擦では全く剥離、脱落するこ
とがないので、管内の異物となって異常放電を起こした
り、蛍光面８の発光を阻害することがない。また、透明
電極１１は実質的に透明であるため、ガラスバルブ１内
の構造、膜の状態などが一目で判別でき、例えばＡＩメ
タルバ・・ｌり層９の色調１表面の反射程度、被覆面積
、蛍光面８の凹凸の状態。According to such a configuration, the transparent type lol! Unlike carbon film, phosphor screen 8
It is possible to significantly reduce brightness deterioration and cathode deterioration due to abnormal discharge caused by emitted gas. Moreover, this transparent electrode 1
1 is extremely smooth and dense, so A is placed on this transparent electrode 11.
Even if the metal back layer 9 is formed, sufficient electrical contact can be made. Furthermore, since the transparent electrode 11 made of a transparent conductive film is substantially transparent in the visible light to infrared light range, there is no problem in forming the fluorescent screen 8 on the transparent electrode 11 and emitting light, and the light is emitted externally. It can be taken out. However, since the transparent electrode 11 can be formed on the lower side of the phosphor screen 8 (in short, between the glass bulb 1 and the phosphor screen 8), if the Al metal back layer 9 is formed on the top layer of the phosphor screen 8, the phosphor screen 8 Transparent electrode 11 is inserted through the end (there is a pinhole because the phosphor is sparsely attached here).
- can be contacted with the Al metal back layer 9, and therefore there will be no contact failure. Also,
The transparent electrode 1]- is firmly attached to the inner surface of the glass bulb 1, so it will not peel off or fall off even with slight vibration or friction, so it will not become a foreign object inside the tube and cause abnormal discharge, or the phosphor screen 8 does not inhibit the luminescence of In addition, since the transparent electrode 11 is substantially transparent, the structure inside the glass bulb 1, the state of the film, etc. can be determined at a glance. , the uneven state of the phosphor screen 8.
ゲッター膜の被覆面積１色調、ガス吸着の程度などが容
易に判別することができる。また、透明電極１１の作製
方法は各種あるが、真空中または減圧中での被覆法ある
いは熱分解法などを用いているので、カーボン液を用い
たときのような″液だれ”による不良は皆無となり塗布
液を常時攪拌する必要がなくなる。The color tone of the area covered by the getter film, the degree of gas adsorption, etc. can be easily determined. Furthermore, although there are various methods for manufacturing the transparent electrode 11, since we use a coating method in vacuum or reduced pressure, a thermal decomposition method, etc., there are no defects caused by "dripping" like when carbon liquid is used. This eliminates the need to constantly stir the coating solution.
［発明の効果］
以上、説明したように本発明によれは、陽極電極として
透明電極を用いたことによって従来のカーボン膜に比べ
て水分、吸蔵カスなどが極めて少なくなり、放出ガス量
が少なく、蛍光面の輝度劣化および放出ガスに起因する
異常放電によるカソード劣化が顕著に低減できる。また
、透明電極とＡＩメタルバック層とのコンタクトが極め
て良好となるので、コンタクト不良か皆無となり、信頼
性を著しく向上させることができる。さらに透明電極か
ガラスバルブ内面に強固に付着されるので、多少の振動
、摩擦に対して剥離、脱落することがなくなり、ガラス
バルブ内での異常放電の発生および蛍光面の発光を阻害
することが皆無となり、高品位で信頼性の高い発光型光
源用蛍光管が得られるという極めて優れた効果を有する
。[Effects of the Invention] As explained above, according to the present invention, by using a transparent electrode as an anode electrode, moisture, occluded residue, etc. are extremely reduced compared to conventional carbon films, and the amount of released gas is reduced. Deterioration in brightness of the phosphor screen and deterioration of the cathode due to abnormal discharge caused by emitted gas can be significantly reduced. Furthermore, since the contact between the transparent electrode and the AI metal back layer is extremely good, there is no contact failure at all, and reliability can be significantly improved. Furthermore, since the transparent electrode is firmly attached to the inner surface of the glass bulb, it will not peel off or fall off due to slight vibrations or friction, which will prevent abnormal discharge from occurring within the glass bulb and inhibiting the luminescence of the phosphor screen. This has an extremely excellent effect in that a high quality and highly reliable fluorescent tube for a light emitting type light source can be obtained.
第１図は本発明による発光型光源用蛍光管の一実施例に
よる構成を示す要部断面図、第２図は従来の発光型光源
用蛍光管の構成を示す要部断面図である。
１ ・・・カラスバルブ、２ ・・・ステムガラス、３
． ・排気管、４・・−１ノードピン、５・・・・ス
テム、６・・・・力／−ド、７・・・ アノードリンク
、８・・・・蛍光面、９・・・・Ａ、 ｌメタルノく・
ンク層、１１・・・・透明電極。FIG. 1 is a sectional view of a main part showing the structure of an embodiment of a fluorescent tube for a light emitting type light source according to the present invention, and FIG. 2 is a sectional view of a main part showing the structure of a conventional fluorescent tube for a light emitting type light source. 1...Crow bulb, 2...Stem glass, 3
．．・Exhaust pipe, 4...-1 node pin, 5... Stem, 6... Power/-de, 7... Anode link, 8... Fluorescent screen, 9... A, lmetal
Ink layer, 11...Transparent electrode.
Claims (1)
光管において、前記陽極電極の一部がガラス基体上に密
着した透明導電膜からなる透明電極にて形成されかつ前
記透明電極上の一部にメタルバックされた蛍光面が形成
されていることを特徴とした発光型光源用蛍光管。In a fluorescent tube for a light emitting type light source in which an anode electrode is formed inside a glass tube, a part of the anode electrode is formed of a transparent electrode made of a transparent conductive film that is in close contact with a glass substrate, and a part of the anode electrode is formed on the transparent electrode. A fluorescent tube for a light emitting type light source, characterized by a metal-backed fluorescent screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2335513A JPH0644477B2 (en) | 1990-11-30 | 1990-11-30 | Fluorescent tube for light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2335513A JPH0644477B2 (en) | 1990-11-30 | 1990-11-30 | Fluorescent tube for light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04206336A true JPH04206336A (en) | 1992-07-28 |
| JPH0644477B2 JPH0644477B2 (en) | 1994-06-08 |
Family
ID=18289417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2335513A Expired - Lifetime JPH0644477B2 (en) | 1990-11-30 | 1990-11-30 | Fluorescent tube for light source |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644477B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57124844A (en) * | 1980-12-17 | 1982-08-03 | Gen Electric Co Ltd | Cathode light emission source and electric illuminator with same source |
| JPS601735A (en) * | 1983-06-16 | 1985-01-07 | Matsushita Electric Ind Co Ltd | Television receiver |
-
1990
- 1990-11-30 JP JP2335513A patent/JPH0644477B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57124844A (en) * | 1980-12-17 | 1982-08-03 | Gen Electric Co Ltd | Cathode light emission source and electric illuminator with same source |
| JPS601735A (en) * | 1983-06-16 | 1985-01-07 | Matsushita Electric Ind Co Ltd | Television receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644477B2 (en) | 1994-06-08 |
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