JPH10162781A - Aperture type rare gas discharge lamp and manufacture thereof - Google Patents

Aperture type rare gas discharge lamp and manufacture thereof

Info

Publication number
JPH10162781A
JPH10162781A JP32183496A JP32183496A JPH10162781A JP H10162781 A JPH10162781 A JP H10162781A JP 32183496 A JP32183496 A JP 32183496A JP 32183496 A JP32183496 A JP 32183496A JP H10162781 A JPH10162781 A JP H10162781A
Authority
JP
Japan
Prior art keywords
envelope
aperture
emitting layer
phosphor
light
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
Application number
JP32183496A
Other languages
Japanese (ja)
Other versions
JP3624594B2 (en
Inventor
Satoshi Tamura
敏 田村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP32183496A priority Critical patent/JP3624594B2/en
Publication of JPH10162781A publication Critical patent/JPH10162781A/en
Application granted granted Critical
Publication of JP3624594B2 publication Critical patent/JP3624594B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide an aperture type rare gas discharge lamp and a manufacturing method thereof capable of restraining warping of an envelope with a relatively simple structure and easily peeling and removing a luminous layer even during burning. SOLUTION: This discharge lamp comprises an envelope 1 made of a straight tube shaped glass bulb forming a luminous layer 2 having an aperture part 2a in an inner face thereof and a pair of band-shaped external electrodes 5 and 6 made of metal members disposed spaced so that an opening 7 is formed on an outer peripheral face of the envelope 1 over substantially full length thereof and at a art corresponding to the aperture part 2a. A luminous layer 2A includes a simple or a plurality of phosphors, and is constituted to set a total ratio of phosphor borate and/or phosphor phosphate having reaction with a glass occupied in the luminous layer 2a, thereby improving separation properties of the luminous layer.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明はアパ−チャ形希ガ
ス放電灯及びその製造方法に関し、特にガラスバルブの
内面にアパ−チャ部を有する発光層を形成すると共に、
外周面に一対の帯状の外部電極を有するアパ−チャ形希
ガス放電灯において、発光層へのアパ−チャ部の形成方
法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aperture type rare gas discharge lamp and a method of manufacturing the same, and more particularly, to a method of forming a light emitting layer having an aperture on the inner surface of a glass bulb.
The present invention relates to an improvement in a method of forming an aperture portion on a light emitting layer in an aperture type rare gas discharge lamp having a pair of strip-shaped external electrodes on an outer peripheral surface.

【０００２】[0002]

【従来の技術】本出願人は、先に、図５〜図７に示す希
ガス放電灯を提案した。同図において、１は例えばガラ
スバルブにて密閉状に構成された直管状の外囲器であっ
て、その内面には希土類蛍光体，ハロリン酸塩蛍光体な
どの蛍光体よりなる発光層２が形成されている。特に、
この発光層２には所定の開口角を有するアパ−チャ部２
ａがほぼ全長に亘って形成されている。そして、外囲器
１の封着構造はガラスバルブの端部にディスク状の封着
ガラス板を封着して構成されているが、例えば単にガラ
スバルブを加熱しながら縮径加工し溶断して構成するこ
ともできる。尚、この外囲器１の密閉空間には水銀など
の金属蒸気を含まない例えばキセノン（Ｘｅ），クリプ
トン（Ｋｒ），ネオン（Ｎｅ），ヘリウム（Ｈｅ）など
の希ガスが単一又は混合して所定量封入されているが、
キセノンを主成分とする希ガスを例えば２０〜１１０Ｔ
ｏｒｒの圧力で封入することが望ましい。2. Description of the Related Art The applicant has previously proposed a rare gas discharge lamp shown in FIGS. In FIG. 1, reference numeral 1 denotes a straight tubular envelope which is hermetically sealed by a glass bulb, for example, and has a light emitting layer 2 made of a phosphor such as a rare earth phosphor or a halophosphate phosphor on the inner surface thereof. Is formed. Especially,
The light emitting layer 2 has an aperture 2 having a predetermined aperture angle.
a is formed over substantially the entire length. The sealing structure of the envelope 1 is configured by sealing a disk-shaped sealing glass plate to an end of a glass bulb. It can also be configured. In the enclosed space of the envelope 1, a rare gas such as xenon (Xe), krypton (Kr), neon (Ne), or helium (He) which does not contain metal vapor such as mercury is used alone or mixed. Is enclosed in a predetermined amount,
A rare gas containing xenon as a main component is, for example, 20 to 110 T
It is desirable to seal at orr pressure.

【０００３】この外囲器１の外周面にはシ−ト構体３が
密着するように巻回されている。このシ−ト構体３は、
例えば外囲器１の全長とほぼ同程度の長さを有し、かつ
厚さが２０〜１００μｍの範囲に設定された絶縁性の透
光性シ−ト４と、この透光性シ−ト４の一方の面に互い
に所定の間隔だけ離隔配置して接着された不透光性の金
属部材よりなる帯状の一対の外部電極５，６と、この外
部電極５，６の端部から、それと電気的な接続関係を有
し、かつ導出端が透光性シ−ト４の端縁部分より突出す
るように導出された端子５１，６１と、透光性シ−ト４
の一方の面に付与された粘着ないし接着機能を有する接
着層９とから構成されている。尚、シ−ト構体３におい
て、接着層９としてはシリコ−ン系接着剤が好適する
が、アクリル系接着剤なども使用できる。又、透光性シ
−ト４としては、例えばポリエチレンテレフタレ−ト
（ＰＥＴ）樹脂が好適するが、ポリエステル樹脂なども
利用できる。[0003] A sheet structure 3 is wound around the outer peripheral surface of the envelope 1 so as to be in close contact therewith. This sheet structure 3
For example, an insulating translucent sheet 4 having a length substantially equal to the entire length of the envelope 1 and a thickness set in a range of 20 to 100 μm, and the translucent sheet 4 A pair of strip-shaped external electrodes 5 and 6 made of a non-translucent metal member which are adhered to one surface of the first electrode 4 at a predetermined distance from each other, and from the ends of the external electrodes 5 and 6, Terminals 51 and 61, which have an electrical connection relationship and are led out so that the leading ends protrude from an edge portion of the translucent sheet 4, and the translucent sheet 4
And an adhesive layer 9 having an adhesive or adhesive function provided to one surface of the substrate. In the sheet structure 3, a silicone-based adhesive is suitable for the adhesive layer 9, but an acrylic-based adhesive can also be used. As the translucent sheet 4, for example, polyethylene terephthalate (PET) resin is suitable, but polyester resin can also be used.

【０００４】又、外部電極５，６及び端子５１，６１
は、腐食電位列が離れた位置にある金属部材にて構成さ
れており、例えば外部電極５，６としては帯状のアルミ
ニウム箔が、端子５１，６１としては短冊状の銅が好適
する。しかしながら、外部電極５，６としては導電性に
優れ、かつ不透光性の金属部材であればアルミニウムの
他に、ニッケルなどの金属部材も利用できるし、端子５
１，６１としては銅の他に、銀，ステンレス，Ｃｕ−Ｎ
ｉ合金などの金属部材も利用できる。特に、外部電極
５，６の幅Ｗと端子５１，６１の幅ｄとは、０．１Ｗ≦
ｄ≦０．５Ｗ なる関係に設定されている。特に、端子
５１，６１の肉厚は０．１〜０．５ｍｍの範囲が望まし
い。Further, external electrodes 5 and 6 and terminals 51 and 61 are provided.
Is formed of a metal member at a position away from the corrosion potential train. For example, strip-shaped aluminum foil is suitable for the external electrodes 5 and 6, and strip-shaped copper is suitable for the terminals 51 and 61. However, as the external electrodes 5 and 6, a metal member such as nickel can be used in addition to aluminum as long as the metal member has excellent conductivity and is opaque.
Silver, stainless steel, Cu-N
Metal members such as i-alloys can also be used. In particular, the width W of the external electrodes 5 and 6 and the width d of the terminals 51 and 61 are 0.1W ≦
The relationship is set as d ≦ 0.5W. In particular, the thickness of the terminals 51 and 61 is preferably in the range of 0.1 to 0.5 mm.

【０００５】さらに、端子５１，６１の表面には、外部
電極５，６及び端子５１，６１を構成する金属部材とは
異なった金属部材で、かつ外部電極５，６及び端子５
１，６１を構成する金属部材の位置する腐食電位列の間
に位置する金属部材で図示しないメッキ層が形成されて
いる。例えば外部電極５，６にアルミニウム箔が、端子
５１，６１に銅が用いられる場合には、メッキ層を構成
する金属部材としてはニッケル，鉛−錫系半田が望まし
い。このメッキ層の形成は電気メッキ，無電解メッキが
好適するが、浸漬，溶射などによって被着・形成するこ
ともできる。このメッキ層の厚みは、例えば５〜３０μ
ｍ、特に１０〜２０μｍ程度が望ましいが、その範囲外
での使用も可能である。Further, the surfaces of the terminals 51 and 61 are formed of a metal member different from the metal members forming the external electrodes 5 and 6 and the terminals 51 and 61, and the external electrodes 5 and 6 and the terminal
A plating layer (not shown) is formed of a metal member located between the corrosion potential rows where the metal members constituting the components 1 and 61 are located. For example, when aluminum foil is used for the external electrodes 5 and 6 and copper is used for the terminals 51 and 61, a nickel or lead-tin-based solder is desirable as a metal member constituting the plating layer. The plating layer is preferably formed by electroplating or electroless plating, but can also be formed by immersion or thermal spraying. The thickness of this plating layer is, for example, 5 to 30 μm.
m, particularly preferably about 10 to 20 μm, but use outside this range is also possible.

【０００６】上述のシ−ト構体３は外囲器１の外周面
に、外部電極５，６が外囲器１と透光性シ−ト４との間
に位置するように装着されており、後述の第２の開口部
（８）において、透光性シ−ト４の一方の端部４ａに他
方の端部４ｂを重ね合わせた上で接着されている。特
に、シ−ト構体３の外囲器１への装着状態において、外
部電極５，６の一端間には第１の開口部７が、外部電極
５，６の他端の間には第２の開口部８がそれぞれ形成さ
れており、発光層２からの光は主としてアパ−チャ部２
ａを介して第１の開口部７から放出される。The above-mentioned sheet structure 3 is mounted on the outer peripheral surface of the envelope 1 so that the external electrodes 5 and 6 are located between the envelope 1 and the translucent sheet 4. In a second opening (8) to be described later, one end 4a of the translucent sheet 4 and another end 4b are overlapped and bonded. In particular, when the sheet structure 3 is attached to the envelope 1, a first opening 7 is provided between one ends of the external electrodes 5 and 6, and a second opening 7 is provided between the other ends of the external electrodes 5 and 6. Are formed, and light from the light-emitting layer 2 mainly emits light from the aperture 2.
The light is emitted from the first opening 7 through a.

【０００７】この希ガス放電灯は、例えば次のように製
造される。まず、図６〜図７に示すように、透光性シ−
ト４の所定部分に一対の外部電極５，６を離隔して配置
すると共に、外部電極５，６の端部から端子５１，６１
を導出し、かつ透光性シ−ト４及び外部電極５，６に接
着層９を形成してシ−ト構体３を構成する。次に、図８
に示すように、シ−ト構体３を展開した状態で例えば組
み立てステ−ジ１０に載置する。引き続き、外囲器１を
シ−ト構体３の透光性シ−ト４の一端４ａに、外囲器１
の長手方向が外部電極５，６の長手方向に沿うように
（平行となるように）位置させる。この状態で、外囲器
１に従動ロ−ラ１１，１１を、外囲器１が透光性シ−ト
４に若干押しつけるように配置する。この状態で、ステ
−ジ１０を若干Ｍ方向に移動させた後、Ｎ方向に移動さ
せる。これによって、シ−ト構体３は、図５に示すよう
に、外囲器１の外周面に巻回される上、透光性シ−ト４
の一端４ａに他端４ｂが重ね合わされ、接着層９によっ
て接着される。The rare gas discharge lamp is manufactured, for example, as follows. First, as shown in FIGS.
A pair of external electrodes 5 and 6 are arranged at a predetermined portion of the gate 4 and are separated from each other.
And the adhesive layer 9 is formed on the translucent sheet 4 and the external electrodes 5 and 6 to form the sheet structure 3. Next, FIG.
As shown in (1), the sheet structure 3 is placed on, for example, an assembling stage 10 in an unfolded state. Subsequently, the envelope 1 is attached to one end 4a of the translucent sheet 4 of the sheet structure 3.
Of the external electrodes 5 and 6 are arranged so as to be parallel to each other. In this state, the driven rollers 11 and 11 are arranged so that the envelope 1 is slightly pressed against the translucent sheet 4. In this state, the stage 10 is slightly moved in the M direction and then moved in the N direction. As a result, the sheet structure 3 is wound around the outer peripheral surface of the envelope 1 as shown in FIG.
The other end 4b is superimposed on the one end 4a of the base member and is bonded by the bonding layer 9.

【０００８】この希ガス放電灯によれば、発光層２から
放射された光は外囲器内において高密度化されてアパ−
チャ部２ａから第１の開口部７を経て外部に放出される
ために、例えば原稿照射装置に適用した場合、原稿面の
輝度を高めることができ、原稿の読み取り精度を向上さ
せることができる。According to this rare gas discharge lamp, the light radiated from the light emitting layer 2 is densified in the envelope and
Since the light is emitted from the tea portion 2a to the outside through the first opening 7, for example, when applied to a document irradiating device, the brightness of the document surface can be increased, and the reading accuracy of the document can be improved.

【０００９】しかも、外部電極５，６と端子５１，６１
との重なり部分にはメッキ層５２，６２が介在されてい
るために、腐食電位列の離れた位置にある金属部材にて
構成された外部電極５，６と端子５１，６１とを直接的
に接続しても異種金属接触腐食の発生を抑制することが
できる。Moreover, the external electrodes 5, 6 and the terminals 51, 61
Since the plating layers 52 and 62 are interposed in the overlapping portion of the external electrodes 5, 6 and the external electrodes 5 and 6 and the terminals 51 and 61 made of metal members at positions apart from each other in the corrosion potential row are directly connected. Even if the connection is made, it is possible to suppress the occurrence of the dissimilar metal contact corrosion.

【００１０】特に、外部電極５，６の幅Ｗと端子５１，
６１の幅ｄとの関係を ０．１Ｗ≦ｄ≦０．５Ｗ に設
定すれば、外部電極５，６と端子５１，６１との接続部
分における異種金属接触腐食の発生をメッキ層の存在と
相俟ってより効果的に抑制できる。従って、長期間に亘
って安定した動作状態を維持できる。しかしながら、端
子５１，６１の幅ｄが０．１Ｗ未満になると、外部電極
に対する接続強度が低下する。逆に、それの幅ｄが０．
５Ｗを超えると、シ−ト構体３を外囲器１に巻回する際
に、端子５１，６１を外囲器１の外周面に倣い易くする
ための加工をしなければならず、その加工が極めて面倒
になる。従って、両者は上述の関係に設定することが望
ましい。In particular, the width W of the external electrodes 5, 6 and the terminals 51,
If the relationship between the width d of the outer electrode 61 and the width d of the outer electrode 61 is set to 0.1 W ≦ d ≦ 0.5 W, the occurrence of foreign metal contact corrosion at the connection portions between the external electrodes 5 and 6 and the terminals 51 and 61 can be compared with the presence of the plating layer. In addition, it can be more effectively suppressed. Therefore, a stable operation state can be maintained for a long period of time. However, when the width d of the terminals 51 and 61 is less than 0.1 W, the connection strength to the external electrodes decreases. Conversely, if its width d is 0.
If it exceeds 5 W, when winding the sheet structure 3 around the envelope 1, a process must be performed to facilitate the copying of the terminals 51 and 61 to the outer peripheral surface of the envelope 1. Is extremely troublesome. Therefore, it is desirable that both are set in the above-described relationship.

【００１１】一方、上述の方法によれば、透光性シ−ト
４の一方の面には、接着層９が形成されているために、
外囲器１をシ−ト構体３の上で転動させるだけの単純動
作によって、シ−ト構体３を外囲器１の外周面に巻回し
密着させることができ、その上、外部電極５，６は透光
性シ−ト４に予め所定の間隔で配列されているために、
貼り付けの際に外部電極５，６の間隔を所定の間隔とな
るように調整する必要が全くない。従って、作業能率を
飛躍的に改善できるのみならず、機械化が可能となり、
一層の量産効果が期待できるなどの優れた効果が期待で
きる。On the other hand, according to the above-described method, since the adhesive layer 9 is formed on one surface of the translucent sheet 4,
By a simple operation of rolling the envelope 1 on the sheet structure 3, the sheet structure 3 can be wound around and adhered to the outer peripheral surface of the envelope 1, and the external electrode 5 , 6 are arranged at predetermined intervals on the translucent sheet 4 in advance.
There is no need to adjust the intervals between the external electrodes 5 and 6 so as to be a predetermined interval at the time of sticking. Therefore, not only can work efficiency be dramatically improved, but also mechanization becomes possible,
Excellent effects such as further mass production effects can be expected.

【００１２】[0012]

【発明が解決しようとする課題】ところで、上述の希ガ
ス放電灯において、発光層２へのアパ−チャ部２ａの形
成は、例えば図９〜図１０に示すように行われている。
まず、例えば青色領域に発光スペクトルを有するユ−ロ
ピウム付活アルミン酸バリウム・マグネシウム蛍光体，
緑色領域に発光スペクトルを有するセリウム・テルビウ
ム付活リン酸ランタン蛍光体，赤色領域に発光スペクト
ルを有するユ−ロピウム付活硼酸イットリウム・ガドリ
ウム蛍光体をそれぞれ５５，２５，２０重量％の割合で
混合してなる塗布液をガラスバルブよりなる外囲器１の
内面に塗布し、乾燥する。これによって、外囲器１の内
面には塗布膜が形成される。次に、この外囲器１を３０
０°Ｃ程度に加熱して塗布膜を仮焼成する。次に、図９
〜図１０に示すように、外囲器１の内部にスクレ−パ１
２を挿入し、図示矢印方向に移動させることにより塗布
膜（発光層２）の一部が強制的に剥がされて除去され
る。これによってアパ−チャ部２ａが形成される。尚、
スクレ−パ１２は、例えば硬質ゴムなどにて所定の開口
角となるような幅に形成されている。その後、アパ−チ
ャ部２ａの形成された外囲器１を４５０°Ｃ程度に加熱
して本焼成することにより、発光層２が形成される。By the way, in the rare gas discharge lamp described above, the formation of the aperture portion 2a on the light emitting layer 2 is performed, for example, as shown in FIGS.
First, for example, a europium-activated barium magnesium aluminate phosphor having an emission spectrum in the blue region,
A cerium / terbium-activated lanthanum phosphate phosphor having an emission spectrum in the green region and a europium-activated yttrium / gadolinium phosphor having an emission spectrum in the red region are mixed at 55, 25, and 20% by weight, respectively. The coating solution is applied to the inner surface of the envelope 1 made of a glass bulb and dried. Thereby, a coating film is formed on the inner surface of the envelope 1. Next, this envelope 1 is
The coating film is temporarily fired by heating to about 0 ° C. Next, FIG.
As shown in FIG. 10, a scraper 1 is provided inside the envelope 1.
2 is inserted and moved in the direction of the arrow shown in the figure, a part of the coating film (light emitting layer 2) is forcibly peeled off and removed. As a result, the aperture 2a is formed. still,
The scraper 12 is formed to have a predetermined opening angle with, for example, hard rubber. Thereafter, the envelope 1 on which the aperture portion 2a is formed is heated to about 450 ° C. and baked, whereby the light emitting layer 2 is formed.

【００１３】しかしながら、外囲器１の塗布膜を本焼成
する際に、塗布膜が除去されたアパ−チャ部２ａと塗布
膜の形成部分とでは熱容量の違いに基づいて外囲器１が
長手方向に反ってしまう。具体的には、アパ−チャ部２
ａ部分の伸びが塗布膜の形成部分に比べて大きいため
に、アパ−チャ部２ａ部分を外側とする弓なり状に反る
ようになる。従って、外囲器１の外周面へのシ−ト構体
３の巻回が極めて困難になるのみならず、ＯＡ機器にお
ける原稿照射装置などへの適用も難しくなるという問題
がある。However, when the coating film of the envelope 1 is fully baked, the envelope 1 is not extended due to the difference in heat capacity between the aperture portion 2a from which the coating film is removed and the portion where the coating film is formed. It warps in the direction. Specifically, the aperture unit 2
Since the extension of the portion "a" is larger than that of the portion where the coating film is formed, the portion "a" is bowed with the aperture portion 2a outside. Therefore, not only is it extremely difficult to wind the sheet structure 3 around the outer peripheral surface of the envelope 1, but also there is a problem that application to a document irradiating device or the like in OA equipment becomes difficult.

【００１４】このような反りの問題は、例えば仮焼成を
省略して本焼成のみにすれば、簡単に解消できるもの
の、セリウム・テルビウム付活リン酸ランタン蛍光体，
ユ−ロピウム付活硼酸イットリウム・ガドリウム蛍光体
などのようにリン酸塩蛍光体，硼酸塩蛍光体は焼成工程
においてガラスとの反応性に富むために、発光層２が外
囲器内面に強く融着される傾向にある。従って、スクレ
−パ１２を用いて発光層２の一部を剥がし除去しようと
しても容易には剥がれず、仮に何回も剥がし操作を行っ
てもスクレ−パ１２が損傷されるだけでアパ−チャ部２
ａには薄く発光層が残り、大幅な輝度低下を招くことに
なる。このような希ガス放電灯をＯＡ機器における原稿
照射装置などに適用しても、十分な読み取り精度が期待
できなくなるという新たな問題が生ずるようになる。The problem of such a warp can be easily solved by, for example, omitting the preliminary firing and performing only the final firing, but the cerium / terbium-activated lanthanum phosphate phosphor,
Phosphate phosphors and borate phosphors, such as europium-activated yttrium and gadolinium phosphors, are highly reactive with glass in the firing step, so that the light emitting layer 2 is strongly fused to the inner surface of the envelope. Tend to be. Therefore, even if an attempt is made to peel off and remove a part of the light-emitting layer 2 using the scraper 12, the light-emitting layer 2 is not easily peeled off. Part 2
A light emitting layer remains thinly on a, which causes a significant decrease in luminance. Even if such a rare gas discharge lamp is applied to a document irradiating device or the like in OA equipment, a new problem arises in that sufficient reading accuracy cannot be expected.

【００１５】それ故に、本発明の目的は、比較的に簡単
な構成によって外囲器の反りを抑制できる上、本焼成し
ても発光層を容易に剥がし除去できるアパ−チャ形希ガ
ス放電灯及びその製造方法を提供することにある。Therefore, an object of the present invention is to provide an aperture-type rare gas discharge lamp which can suppress the warpage of the envelope with a relatively simple structure and can easily peel off and remove the light emitting layer even after firing. And a method for manufacturing the same.

【００１６】[0016]

【課題を解決するための手段】従って、本発明は、上述
の目的を達成するために、内面にアパ−チャ部を有する
発光層を形成した直管状のガラスバルブよりなる外囲器
と、外囲器の外周面に、それのほぼ全長に亘って、かつ
アパ−チャ部に対応する部分に開口部が形成されるよう
に離隔して配置した金属部材よりなる帯状の一対の外部
電極とを具備し、前記発光層は単一又は複数の蛍光体を
含み、かつ発光層に占めるガラスとの反応性を有する蛍
光体の合計した割合を４０重量％以下に設定して構成し
たことを特徴とする。SUMMARY OF THE INVENTION Accordingly, in order to achieve the above-mentioned object, the present invention provides an envelope comprising a straight tube-shaped glass bulb having a light-emitting layer having an aperture portion on its inner surface; A pair of strip-shaped external electrodes made of a metal member are provided on the outer peripheral surface of the envelope over substantially the entire length thereof and spaced apart so that an opening is formed in a portion corresponding to the aperture. The light-emitting layer includes a single or a plurality of phosphors, and a total ratio of phosphors having reactivity with glass in the light-emitting layer is set to 40% by weight or less. I do.

【００１７】又、本発明の第２の発明は、内面にアパ−
チャ部を有する発光層を形成した直管状のガラスバルブ
よりなる外囲器と、外囲器の外周面に、それのほぼ全長
に亘って、かつアパ−チャ部に対応する部分に開口部が
形成されるように離隔して配置した金属部材よりなる帯
状の一対の外部電極とを具備し、前記発光層は単一又は
複数の蛍光体を含み、かつ発光層に占めるガラスとの反
応性を有する硼酸塩蛍光体及び／又はリン酸塩蛍光体の
合計した割合を４０重量％以下に設定して構成したこと
を特徴とし、第３の発明は、前記外囲器の外周面に絶縁
部材を、外部電極が被覆されるように装着したことを特
徴とし、第４の発明は、前記絶縁部材を、透光性シ−ト
又は熱収縮性樹脂よりなる保護チュ−ブにて構成したこ
とを特徴とする。Further, the second invention of the present invention provides an inner surface having an aperture.
An envelope made of a straight tube-shaped glass bulb having a light emitting layer having a cha portion, and an opening formed on the outer peripheral surface of the envelope over substantially the entire length thereof and at a portion corresponding to the aperture portion. A pair of external electrodes in the form of a band formed of a metal member spaced apart so as to be formed, wherein the light-emitting layer contains a single or plural phosphors, and has a reactivity with glass occupying the light-emitting layer. The total ratio of the borate phosphor and / or the phosphate phosphor is set to 40% by weight or less, and the third invention is characterized in that an insulating member is provided on the outer peripheral surface of the envelope. According to a fourth aspect of the present invention, the insulating member is formed of a protective tube made of a translucent sheet or a heat-shrinkable resin. Features.

【００１８】又、本発明の第５の発明は、全蛍光体に占
めるガラスとの反応性を有する蛍光体の割合が４０重量
％以下に設定された塗布液をガラスバルブよりなる外囲
器の内面に塗布する工程と、塗布工程後に外囲器を焼成
することによって発光層を形成する工程と、外囲器の内
面に形成された発光層の一部を長手方向に向けて、スク
レ−パにて所定の開口角のアパ−チャ部が形成されるよ
うに剥がし除去する工程と、外囲器の外周面に金属部材
よりなる帯状の一対の外部電極を、アパ−チャ部に対応
する部分に開口部が形成されるように離隔して配置する
工程とを含むことを特徴とする。In a fifth aspect of the present invention, a coating solution in which the ratio of phosphor having reactivity with glass to all phosphors is set to 40% by weight or less is applied to an envelope made of a glass bulb. A step of coating the inner surface, a step of baking the envelope after the coating step to form a light emitting layer, and a step of forming a part of the light emitting layer formed on the inner surface of the envelope in a longitudinal direction by scraping And removing a pair of external electrodes made of a metal member on the outer peripheral surface of the envelope at a portion corresponding to the aperture portion. And arranging them separately so that an opening is formed.

【００１９】さらには、本発明の第６の発明は、全蛍光
体に占めるガラスとの反応性を有する硼酸塩蛍光体及び
／又はリン酸塩蛍光体の合計した割合が４０重量％以下
に設定された塗布液をガラスバルブよりなる外囲器の内
面に塗布する工程と、塗布工程後に外囲器を焼成するこ
とによって発光層を形成する工程と、外囲器の内面に形
成された発光層の一部を長手方向に向けて、スクレ−パ
にて所定の開口角のアパ−チャ部が形成されるように剥
がし除去する工程と、外囲器の全長とほぼ同程度の長さ
を有する絶縁性の透光性シ−トの一方の面に金属部材よ
りなる帯状の一対の外部電極を互いに離隔して配置し、
かつ外部電極の端部に端子を電気的に接続してなるシ−
ト構体を外囲器の外周面に、外部電極が外囲器と透光性
シ−トとの間に位置し、かつ外部電極の開口部がアパ−
チャ部にほぼ対応するように巻回する工程とを含むこと
を特徴とする。Further, according to a sixth aspect of the present invention, the total ratio of borate phosphor and / or phosphate phosphor having reactivity with glass to all phosphors is set to 40% by weight or less. Applying the applied coating liquid to the inner surface of the envelope made of a glass bulb, forming the light-emitting layer by firing the envelope after the coating step, and forming the light-emitting layer on the inner surface of the envelope. A part of which is directed in the longitudinal direction and peeled off with a scraper to form an aperture portion having a predetermined opening angle, and has a length substantially equal to the entire length of the envelope. A pair of strip-shaped external electrodes made of a metal member are arranged on one surface of the insulating translucent sheet so as to be separated from each other;
And a terminal electrically connected to an end of the external electrode.
The structure is located on the outer peripheral surface of the envelope, the external electrode is located between the envelope and the translucent sheet, and the opening of the external electrode is apertured.
And a step of winding so as to substantially correspond to the tea portion.

【００２０】[0020]

【発明の実施の形態】次に、本発明にかかるアパ−チャ
形希ガス放電灯の第１の実施例について図１を参照して
説明する。尚、図５〜図１０に示す先行技術と同一部分
には同一参照符号を付し、その詳細な説明は省略する。
同図において、この実施例の特徴部分は、ガラスバルブ
よりなる外囲器１の内面にアパ−チャ部２ａを有する発
光層２Ａを主として単一又は複数の蛍光体にて構成し、
かつ発光層２Ａに占めるガラスとの反応性を有する蛍光
体の合計した割合を４０重量％以下に設定して構成した
ことであり、具体的には、発光層２Ａを主として単一又
は複数の蛍光体にて構成し、かつ発光層２Ａに占めるガ
ラスとの反応性を有する硼酸塩蛍光体及び／又はリン酸
塩蛍光体の合計した割合を４０重量％以下に設定して構
成したことである。Next, a first embodiment of an aperture type rare gas discharge lamp according to the present invention will be described with reference to FIG. The same parts as those in the prior art shown in FIGS. 5 to 10 are denoted by the same reference numerals, and detailed description thereof will be omitted.
In the figure, the characteristic part of this embodiment is that a light emitting layer 2A having an aperture 2a on the inner surface of an envelope 1 made of a glass bulb is mainly composed of a single or a plurality of phosphors,
In addition, the total ratio of the phosphor having reactivity with glass in the light-emitting layer 2A is set to 40% by weight or less. Specifically, the light-emitting layer 2A mainly includes a single or a plurality of fluorescent materials. The total ratio of borate phosphor and / or phosphate phosphor having reactivity with glass in the light emitting layer 2A is set to 40% by weight or less.

【００２１】このアパ−チャ形希ガス放電灯は、例えば
次のように製造される。まず、例えば青色領域に発光ス
ペクトルを有するユ−ロピウム付活アルミン酸バリウム
・マグネシウム蛍光体，緑色領域に発光スペクトルを有
するセリウム・テルビウム付活リン酸ランタン蛍光体
（リン酸塩蛍光体），赤色領域に発光スペクトルを有す
るユ−ロピウム付活硼酸イットリウム・ガドリウム蛍光
体（硼酸塩蛍光体）を、全蛍光体に占めるリン酸塩蛍光
体及び硼酸塩蛍光体の合計した割合が４０重量％以下と
なるように混合してなる塗布液をガラスバルブよりなる
外囲器１の内面に塗布し、乾燥する。これによって、外
囲器１の内面には塗布膜が形成される。次に、この外囲
器１を例えば４５０°Ｃ程度に加熱して本焼成すること
により、発光層２Ａが形成される。次に、図９〜図１０
に示すように、外囲器１の内部にスクレ−パ１２を挿入
し、外囲器内面に押し付けた状態で図示矢印方向に移動
させることにより発光層２Ａの一部が強制的に剥がされ
て除去される。これによってアパ−チャ部２ａが形成さ
れる。以下、図５〜図８に示す先行技術と同様の方法に
よりアパ−チャ形希ガス放電灯が製造される。The aperture type rare gas discharge lamp is manufactured, for example, as follows. First, for example, europium-activated barium / magnesium aluminate phosphor having an emission spectrum in a blue region, cerium / terbium-activated lanthanum phosphate phosphor (phosphate phosphor) having an emission spectrum in a green region, and a red region. The total ratio of the phosphor phosphor and the borate phosphor to the total phosphor of the europium-activated yttrium gadolinium borate phosphor having the emission spectrum is 40% by weight or less. Is applied to the inner surface of the envelope 1 made of a glass bulb, and dried. Thereby, a coating film is formed on the inner surface of the envelope 1. Next, the envelope 1 is heated to, for example, about 450 ° C. and baked to form the light emitting layer 2A. Next, FIGS.
As shown in (1), the scraper 12 is inserted into the envelope 1 and moved in the direction of the arrow in the state of being pressed against the inner surface of the envelope, whereby a part of the light emitting layer 2A is forcibly peeled off. Removed. As a result, the aperture 2a is formed. Hereinafter, an aperture type rare gas discharge lamp is manufactured by a method similar to the prior art shown in FIGS.

【００２２】この実施例によれば、発光層２Ａに占める
ガラスとの反応性を有する硼酸塩蛍光体及び／又はリン
酸塩蛍光体の合計した割合が４０重量％以下に設定され
ているために、外囲器内面に塗布膜を形成した後に本焼
成しても、発光層２Ａの外囲器内面への必要以上の融着
を抑制できる。このために、スクレ−パ１２による発光
層の一部の剥がし除去を簡単かつ確実に行うことがで
き、アパ−チャ部２ａの形成部分に発光層の剥がし残渣
が残らない。従って、アパ−チャ部２ａの輝度低下を防
止できる。According to this embodiment, the total ratio of the borate phosphor and / or the phosphate phosphor having reactivity with glass in the light emitting layer 2A is set to 40% by weight or less. Even if the final baking is performed after forming the coating film on the inner surface of the envelope, unnecessary fusion of the light emitting layer 2A to the inner surface of the envelope can be suppressed. For this reason, peeling and removal of a part of the light-emitting layer by the scraper 12 can be performed easily and reliably, and no residue of the light-emitting layer is left at the portion where the aperture portion 2a is formed. Therefore, it is possible to prevent the brightness of the aperture section 2a from decreasing.

【００２３】特に、外囲器１の塗布膜に対する本焼成
は、外囲器の内面全体に塗布膜を形成した状態で行われ
るために、外囲器１の熱容量が全体に亘って均斉化さ
れ、不所望な反りの発生を確実に防止することができ
る。このために、外囲器１の外周面へのシ−ト構体３の
巻回を容易に行うことができ、作業能率を高めることが
できる。In particular, since the final baking of the coating film of the envelope 1 is performed in a state where the coating film is formed on the entire inner surface of the envelope, the heat capacity of the envelope 1 is equalized over the whole. Thus, occurrence of undesired warpage can be reliably prevented. For this reason, winding of the sheet structure 3 around the outer peripheral surface of the envelope 1 can be easily performed, and work efficiency can be improved.

【００２４】図２は本発明の第２の実施例を示すもので
あって、基本的な構成は図１に示すアパ−チャ形希ガス
放電灯と同じである。異なる点は、第１の開口部７に対
応する外囲器１の内面部分に形成されているアパ−チャ
部２ａの開口角θ3 を第１の開口部７の開口角θ1 より
大きく設定したことである。このアパ−チャ部２ａの開
口角θ3 は例えば７０〜１１０度の範囲に設定されてい
るが、用途，目的などに応じて適宜に変更できる。尚、
第１の開口部７の開口角θ1 と第２の開口部８の開口角
θ2 はθ1 ＞θ2 に設定することが望ましいが、θ1 ≦
θ2 の関係に設定することも可能である。FIG. 2 shows a second embodiment of the present invention. The basic structure is the same as that of the aperture type rare gas discharge lamp shown in FIG. The difference is that the opening angle θ 3 of the aperture 2 a formed in the inner surface of the envelope 1 corresponding to the first opening 7 is set to be larger than the opening angle θ 1 of the first opening 7. It was done. Ame - but opening angle theta 3 tea portion 2a is set in a range of, for example, 70 to 110 degrees, the application can be changed appropriately depending on the purpose. still,
It is desirable that the aperture angle theta 1 of the first opening 7 opening angle theta 2 of the second opening 8 is set to θ 1> θ 2, θ 1 ≦
It is also possible to set the theta 2 relationship.

【００２５】この実施例によれば、外囲器１の外周面に
シ−ト構体３を巻回する際に、第１の開口部７とアパ−
チャ部２ａとのセンタ−が若干ずれても、第１の開口部
７から放出される光の光軸のずれを緩和できる。このた
めに、例えば原稿照射装置に適用しても、十分に高い読
み取り精度を得ることができる。According to this embodiment, when the sheet assembly 3 is wound around the outer peripheral surface of the envelope 1, the first opening 7 and the aperture
Even if the center with respect to the cha portion 2a is slightly shifted, the shift of the optical axis of the light emitted from the first opening 7 can be reduced. For this reason, even when applied to, for example, a document irradiation device, sufficiently high reading accuracy can be obtained.

【００２６】図３は本発明の第３の実施例を示すもので
あって、基本的な構成は図１に示すアパ−チャ形希ガス
放電灯と同じである。異なる点は、外囲器１の外周面に
一対の外部電極５，６を接着層を利用して貼着すること
と、外部電極５，６の貼着された外囲器１の外周面にＰ
ＥＴ樹脂などの熱収縮性樹脂よりなる保護チュ−ブ１３
を被せたことである。尚、この保護チュ−ブ１３は外囲
器１に装着した後、例えば１５０〜２００°Ｃ程度に加
熱し、収縮させることにより外囲器１の外周面に密着さ
れる。FIG. 3 shows a third embodiment of the present invention. The basic structure is the same as that of the aperture type rare gas discharge lamp shown in FIG. The difference is that a pair of external electrodes 5 and 6 are attached to the outer peripheral surface of the envelope 1 using an adhesive layer, and that the outer electrodes 5 and 6 are attached to the outer peripheral surface of the envelope 1 to which the external electrodes 5 and 6 are attached. P
Protective tube 13 made of heat shrinkable resin such as ET resin
Is covered. After the protective tube 13 is mounted on the envelope 1, it is heated to, for example, about 150 to 200 ° C. and shrunk, so that the protective tube 13 is brought into close contact with the outer peripheral surface of the envelope 1.

【００２７】この実施例によれば、上述の各実施例に比
較すると、機械化，作業能率の点で劣るものの、保護チ
ュ−ブ１３に接着層を使用しないために、端子の構成部
材と接着剤成分との反応による腐食がなく、長期間に亘
って安定した動作状態を維持できる上、保護チュ−ブ１
３に継目がないために、上述の実施例のように透光性シ
−ト４の端部の重ね合わせ部分の剥がれを完全に防止で
きる。According to this embodiment, as compared with the above-described embodiments, although the mechanization and work efficiency are inferior, the use of an adhesive layer for the protective tube 13 makes it difficult to form the terminal member and the adhesive. There is no corrosion due to reaction with the components, a stable operating state can be maintained for a long time, and the protection tube 1
Since there is no seam at 3, the peeling of the overlapping portion at the end of the translucent sheet 4 as in the above-described embodiment can be completely prevented.

【００２８】尚、本発明は、何ら上記実施例にのみ制約
されることなく、例えばリン酸塩蛍光体としては、セリ
ウム・テルビウム付活リン酸ランタン蛍光体（ＬａＰＯ
4 ：Ｃｅ，Ｔｂ）の他に、錫付活リン酸ストロンチウム
・マグネシウム蛍光体（（ＳｒＭｇ）3 （ＰＯ4 ）2 ：
Ｓｎ），ユ−ロピウム付活リンバナジン酸イットリウム
蛍光体（Ｙ（ＰＶ）Ｏ4 ：Ｅｕ）なども適用できる。硼
酸塩蛍光体としては、ユ−ロピウム付活硼酸イットリウ
ム・ガドリウム蛍光体の他に、ユ−ロピウム付活硼リン
酸ストロンチウム蛍光体（２ＳｒＯ・（Ｐ2 Ｏ7 ・Ｂ2
Ｏ3 ）：Ｅｕ）なども適用できる。又、単一又は複数の
蛍光体を使用する場合には、リン酸塩蛍光体，硼酸塩蛍
光体を使用しない組み合わせを採用することも可能であ
り、例えばセリウム・テルビウム付活アルミン酸マグネ
シウム蛍光体（ＭｇＡｌ11Ｏ19：Ｃｅ，Ｔｂ），セリウ
ム・テルビウム付活イットリウム・シリケ−ト蛍光体
（Ｙ 2 ＳｉＯ5 ：Ｃｅ，Ｔｂ），ユ−ロピウム付活アル
ミン酸バリウム・マグネシウム蛍光体（ＢａＭｇ2 Ａｌ
16Ｏ27：Ｅｕ），ユ−ロピウム付活酸化イットリウム蛍
光体（Ｙ2 Ｏ3 ：Ｅｕ）などが使用できる。さらに、透
光性シ−トの端部の重ね合わせ部分は単に接着の他に、
熱溶着したり，超音波溶着したり，接着と溶着を併用し
たりすることもできる。その上、透光性シ−トの端部は
外部電極の上で重ね合わせることもできる。The present invention is limited only to the above embodiment.
For example, phosphate phosphors
Terbium activated lanthanum phosphate phosphor (LaPO
Four: Ce, Tb) and tin-activated strontium phosphate
・ Magnesium phosphor ((SrMg)Three(POFour)Two:
Sn), europium-activated yttrium phosphorus vanadate
Phosphor (Y (PV) OFour: Eu) can also be applied. Bo
Europium-activated yttrium borate
In addition to the gadolinium phosphor, boron-activated boron phosphorus
Strontium acid phosphor (2SrO. (PTwoO7・ BTwo
OThree): Eu) can also be applied. Also, single or multiple
When phosphor is used, phosphate phosphor, borate phosphor
It is also possible to adopt a combination that does not use an optical body.
For example, cerium / terbium activated magnesium aluminate
Phosphor (MgAl11O19: Ce, Tb), Seriu
Terbium activated yttrium silicate phosphor
(Y TwoSiOFive: Ce, Tb), europium activated aluminum
Barium magnesium silicate phosphor (BaMgTwoAl
16O27: Eu), europium activated yttrium oxide firefly
Light body (YTwoOThree: Eu) can be used. In addition,
The overlapping part at the end of the light-sensitive sheet is not only glued,
Heat welding, ultrasonic welding, or both adhesion and welding
You can also. In addition, the end of the translucent sheet is
It can also be superimposed on the external electrode.

【００２９】[0029]

【実施例】次に、実験例について説明する。まず、青色
領域に発光スペクトルを有するユ−ロピウム付活アルミ
ン酸バリウム・マグネシウム蛍光体，緑色領域に発光ス
ペクトルを有するセリウム・テルビウム付活リン酸ラン
タン蛍光体（リン酸塩蛍光体），赤色領域に発光スペク
トルを有するユ−ロピウム付活硼酸イットリウム・ガド
リウム蛍光体（硼酸塩蛍光体）を、全蛍光体に占めるリ
ン酸塩蛍光体及び硼酸塩蛍光体の合計した割合を図４に
示すように０〜４５重量％の範囲で可変して混合してな
る塗布液を、外径が８ｍｍ，長さが３００ｍｍの鉛ガラ
スよりなる外囲器の内面に塗布し、乾燥する。次に、こ
の外囲器１を４５０〜５００°Ｃ程度にコントロ−ルさ
れた焼成炉に挿入して本焼成する。次に、図９〜図１０
に示すスクレ−パを用いて発光層の一部を強制的に剥が
し除去することによってアパ−チャ部２ａを形成する。
以下、図５〜図８に示す先行技術と同様の方法にてアパ
−チャ形希ガス放電灯を製造した。Next, an experimental example will be described. First, a europium-activated barium magnesium aluminate phosphor having an emission spectrum in the blue region, a cerium-terbium-activated lanthanum phosphate phosphor (phosphate phosphate) having an emission spectrum in the green region, and a red region. As shown in FIG. 4, the total ratio of the phosphor phosphor and the borate phosphor to the total phosphor of the europium-activated yttrium gadolinium borate phosphor having the emission spectrum was 0% as shown in FIG. A coating liquid obtained by mixing variably in the range of up to 45% by weight is applied to the inner surface of an envelope made of lead glass having an outer diameter of 8 mm and a length of 300 mm and dried. Next, the envelope 1 is inserted into a firing furnace controlled at about 450 to 500 ° C. to perform main firing. Next, FIGS.
The aperture portion 2a is formed by forcibly peeling off and removing a part of the light emitting layer using a scraper shown in FIG.
An aperture type rare gas discharge lamp was manufactured in the same manner as in the prior art shown in FIGS.

【００３０】この希ガス放電灯の製造工程におけるスク
レ−パによる発光層の剥がし易さを測定したところ、図
４に示す結果が得られた。尚、同図において、○は剥が
し易くアパ−チャ部に蛍光体の残渣が残っていないこと
を、△は若干剥がし難いが実用上は支障ないことを、×
は剥がし難くアパ−チャ部に蛍光体の残渣が残っている
ことを示している。The easiness of peeling the light emitting layer by the scraper in the process of manufacturing the rare gas discharge lamp was measured, and the result shown in FIG. 4 was obtained. In the figure, ○ indicates that the phosphor is easily peeled and no residue of the phosphor remains on the aperture portion, and Δ indicates that it is difficult to peel a little but does not hinder practical use.
Indicates that the residue of the phosphor is hardly peeled off and remains in the aperture portion.

【００３１】同図から明らかなように、発光層に占める
リン酸塩蛍光体及び硼酸塩蛍光体の合計した割合が３５
重量％以下では発光層の一部をスクレ−パによって容易
に剥がし除去できる上、アパ−チャ部に蛍光体の残渣が
残らない。従って、ＯＡ機器の原稿照射装置に適用して
も十分の読み取り精度が得られる。又、その割合が４０
重量％ではスクレ−パによる発光層の剥がし除去性が、
３５重量％以下のものに比較すると若干低下するもの
の、アパ−チャ部における蛍光体の残渣は殆んどなく一
応実用に供し得る。しかしながら、その割合が４５重量
％以上ではリン酸塩蛍光体及び硼酸塩蛍光体が焼成時に
ガラス化して外囲器に融着し易くなるために、発光層の
剥がし性が著しく低下し、アパ−チャ部に蛍光体の残渣
が多く残るようになり、光透過性が損なわれる。この結
果から、発光層に占めるリン酸塩蛍光体及び硼酸塩蛍光
体の合計した割合は４０重量％以下に設定しなければな
らない。As is apparent from the figure, the total ratio of the phosphate phosphor and the borate phosphor in the light emitting layer is 35.
When the amount is less than 10% by weight, a part of the light emitting layer can be easily peeled off by a scraper and the residue of the phosphor does not remain in the aperture portion. Therefore, sufficient reading accuracy can be obtained even when applied to a document irradiation device of an OA device. In addition, the ratio is 40
When the weight% is used, the light emitting layer can be removed and removed by a scraper.
Although it is slightly lower than that of 35% by weight or less, there is almost no phosphor residue in the aperture part, and it can be put to practical use. However, when the proportion is 45% by weight or more, the phosphate phosphor and the borate phosphor are vitrified at the time of firing and are easily fused to the envelope, so that the peelability of the light emitting layer is remarkably deteriorated, and the aperture is reduced. A large amount of phosphor residue remains in the tea portion, and the light transmittance is impaired. From this result, the total ratio of the phosphate phosphor and the borate phosphor in the light emitting layer must be set to 40% by weight or less.

【００３２】[0032]

【発明の効果】以上のように本発明によれば、発光層に
占めるガラスとの反応性を有する蛍光体の割合が４０重
量％以下に設定されているために、外囲器内面に塗布膜
を形成した後に本焼成して発光層を形成しても、発光層
の外囲器内面への必要以上の融着を抑制できる。このた
めに、スクレ−パによる発光層の一部の剥がし除去を簡
単かつ確実に行うことができるのみならず、アパ−チャ
部の形成部分における発光層の残渣量も実用上支障とな
らない程度に抑制できる。従って、アパ−チャ部での光
吸収を最小限に止めることができ、輝度低下を防止でき
る。As described above, according to the present invention, since the ratio of the phosphor having reactivity with glass in the light emitting layer is set to 40% by weight or less, the coating film is formed on the inner surface of the envelope. Even if the light emitting layer is formed by performing the main baking after forming the light emitting layer, unnecessary fusion of the light emitting layer to the inner surface of the envelope can be suppressed. For this reason, not only can the peeling and removal of a part of the light-emitting layer by the scraper be performed simply and reliably, but also the amount of residue of the light-emitting layer in the portion where the aperture portion is formed does not hinder practical use. Can be suppressed. Therefore, light absorption at the aperture can be minimized, and a decrease in luminance can be prevented.

【００３３】特に、外囲器の塗布膜に対する本焼成は、
外囲器の内面全体に塗布膜を形成した状態で行われるた
めに、外囲器の熱容量が全体に亘って均斉化され、不所
望な反りの発生を確実に防止することができる。このた
めに、例えば外囲器の外周面にシ−ト構体を巻回する形
式のものにあっては、シ−ト構体の巻回を容易に行うこ
とができ、作業能率を高めることができる。In particular, the final firing for the coating film of the envelope is as follows:
Since the heat treatment is performed in a state in which the coating film is formed on the entire inner surface of the envelope, the heat capacity of the envelope is uniformed over the entire surface, and the occurrence of undesired warpage can be reliably prevented. For this reason, for example, in a type in which the sheet structure is wound around the outer peripheral surface of the envelope, the sheet structure can be easily wound, and work efficiency can be improved. .

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の第１の実施例を示す縦断面図。FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.

【図２】本発明の第２の実施例を示す縦断面図。FIG. 2 is a longitudinal sectional view showing a second embodiment of the present invention.

【図３】本発明の第３の実施例を示す縦断面図。FIG. 3 is a longitudinal sectional view showing a third embodiment of the present invention.

【図４】発光層に占める硼酸塩，リン酸塩蛍光体の割合
に対する発光層の剥がし易さの関係を示す図。FIG. 4 is a diagram showing the relationship between the ratio of borate and phosphate phosphors in the light emitting layer and the ease of peeling of the light emitting layer.

【図５】先行技術にかかる希ガス放電灯の縦断面図。FIG. 5 is a longitudinal sectional view of a rare gas discharge lamp according to the prior art.

【図６】先行技術にかかるシ−ト構体の展開図。FIG. 6 is a development view of a sheet structure according to the prior art.

【図７】図６のＸ−Ｘ断面図。FIG. 7 is a sectional view taken along line XX of FIG. 6;

【図８】先行技術にかかる希ガス放電灯の製造方法を説
明するための縦断面図。FIG. 8 is a longitudinal sectional view for explaining a method for manufacturing a rare gas discharge lamp according to the prior art.

【図９】先行技術にかかる発光層の剥がし方法を説明す
るための側断面図。FIG. 9 is a side sectional view for explaining a method of peeling a light emitting layer according to the prior art.

【図１０】図９のＹ−Ｙ断面図。FIG. 10 is a sectional view taken along line YY of FIG. 9;

【符号の説明】[Explanation of symbols]

１ 外囲器 ２Ａ 発光層 ２ａ アパ−チャ部 ３ シ−ト構体 ４ 透光性シ−ト（絶縁部材） ５，６ 外部電極 ５１，６１ 端子 ７ 第１の開口部 ８ 第２の開口部 ９ 接着層 １２ スクレ−パ １３ 保護チュ−ブ DESCRIPTION OF SYMBOLS 1 Enclosure 2A Light emitting layer 2a Aperture part 3 Sheet structure 4 Translucent sheet (insulating member) 5, 6 External electrode 51, 61 Terminal 7 First opening 8 Second opening 9 Adhesive layer 12 Scraper 13 Protection tube

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｈ０１Ｊ 61/44 Ｈ０１Ｊ 61/44 Ｎ 65/00 65/00 Ａ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI H01J 61/44 H01J 61/44 N 65/00 65/00 A

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 内面にアパ−チャ部を有する発光層を形
成した直管状のガラスバルブよりなる外囲器と、外囲器
の外周面に、それのほぼ全長に亘って、かつアパ−チャ
部に対応する部分に開口部が形成されるように離隔して
配置した金属部材よりなる帯状の一対の外部電極とを具
備し、前記発光層は単一又は複数の蛍光体を含み、かつ
発光層に占めるガラスとの反応性を有する蛍光体の合計
した割合を４０重量％以下に設定して構成したことを特
徴とするアパ−チャ形希ガス放電灯。1. An envelope comprising a straight tubular glass bulb having a light emitting layer having an aperture on its inner surface, and an aperture on the outer peripheral surface of the envelope over substantially the entire length thereof. A pair of band-shaped external electrodes made of a metal member spaced apart so that an opening is formed in a portion corresponding to the portion, wherein the light-emitting layer includes a single or a plurality of phosphors, and emits light. An aperture-type rare gas discharge lamp characterized in that the total ratio of phosphors reactive with glass in the layer is set to 40% by weight or less. 【請求項２】 内面にアパ−チャ部を有する発光層を形
成した直管状のガラスバルブよりなる外囲器と、外囲器
の外周面に、それのほぼ全長に亘って、かつアパ−チャ
部に対応する部分に開口部が形成されるように離隔して
配置した金属部材よりなる帯状の一対の外部電極とを具
備し、前記発光層は単一又は複数の蛍光体を含み、かつ
発光層に占めるガラスとの反応性を有する硼酸塩蛍光体
及び／又はリン酸塩蛍光体の合計した割合を４０重量％
以下に設定して構成したことを特徴とするアパ−チャ形
希ガス放電灯。2. An envelope comprising a straight tube-shaped glass bulb having a light-emitting layer having an aperture on its inner surface, and an aperture on the outer peripheral surface of the envelope over substantially the entire length thereof. A pair of band-shaped external electrodes made of a metal member spaced apart so that an opening is formed in a portion corresponding to the portion, wherein the light-emitting layer includes a single or a plurality of phosphors, and emits light. The total proportion of borate and / or phosphate phosphors reactive with glass in the layer is 40% by weight
An aperture type rare gas discharge lamp characterized by being set as follows. 【請求項３】 前記外囲器の外周面に絶縁部材を、外部
電極が被覆されるように装着したことを特徴とする請求
項１又は２記載のアパ−チャ形希ガス放電灯。3. The aperture type rare gas discharge lamp according to claim 1, wherein an insulating member is mounted on an outer peripheral surface of the envelope so as to cover an external electrode. 【請求項４】 前記絶縁部材を、透光性シ−ト又は熱収
縮性樹脂よりなる保護チュ−ブにて構成したことを特徴
とする請求項３記載のアパ−チャ形希ガス放電灯。4. An aperture-type rare gas discharge lamp according to claim 3, wherein said insulating member is formed of a protective tube made of a translucent sheet or a heat-shrinkable resin. 【請求項５】 全蛍光体に占めるガラスとの反応性を有
する蛍光体の割合が４０重量％以下に設定された塗布液
をガラスバルブよりなる外囲器の内面に塗布する工程
と、塗布工程後に外囲器を焼成することによって発光層
を形成する工程と、外囲器の内面に形成された発光層の
一部を長手方向に向けて、スクレ−パにて所定の開口角
のアパ−チャ部が形成されるように剥がし除去する工程
と、外囲器の外周面に金属部材よりなる帯状の一対の外
部電極を、アパ−チャ部に対応する部分に開口部が形成
されるように離隔して配置する工程とを含むことを特徴
とするアパ−チャ形希ガス放電灯の製造方法。5. A step of applying a coating solution in which the ratio of phosphor having reactivity with glass to all phosphors is set to 40% by weight or less, on the inner surface of an envelope made of a glass bulb, and a coating step. A step of forming a light emitting layer by baking the envelope later, and a method of forming a part of the light emitting layer formed on the inner surface of the envelope in a longitudinal direction by using a scraper to form an aperture having a predetermined opening angle. A step of peeling and removing so as to form an opening, and forming a pair of band-shaped external electrodes made of a metal member on the outer peripheral surface of the envelope so that an opening is formed in a portion corresponding to the aperture. A method of manufacturing an aperture type rare gas discharge lamp. 【請求項６】 全蛍光体に占めるガラスとの反応性を有
する硼酸塩蛍光体及び／又はリン酸塩蛍光体の合計した
割合が４０重量％以下に設定された塗布液をガラスバル
ブよりなる外囲器の内面に塗布する工程と、塗布工程後
に外囲器を焼成することによって発光層を形成する工程
と、外囲器の内面に形成された発光層の一部を長手方向
に向けて、スクレ−パにて所定の開口角のアパ−チャ部
が形成されるように剥がし除去する工程と、外囲器の全
長とほぼ同程度の長さを有する絶縁性の透光性シ−トの
一方の面に金属部材よりなる帯状の一対の外部電極を互
いに離隔して配置し、かつ外部電極の端部に端子を電気
的に接続してなるシ−ト構体を外囲器の外周面に、外部
電極が外囲器と透光性シ−トとの間に位置し、かつ外部
電極の開口部がアパ−チャ部にほぼ対応するように巻回
する工程とを含むことを特徴とするアパ−チャ形希ガス
放電灯の製造方法。6. A coating solution in which the total ratio of borate phosphor and / or phosphate phosphor having reactivity with glass to all phosphors is set to 40% by weight or less. The step of applying to the inner surface of the envelope, the step of forming a light-emitting layer by firing the envelope after the application step, and a part of the light-emitting layer formed on the inner surface of the envelope in the longitudinal direction, A step of peeling and removing the aperture with a scraper so as to form an aperture having a predetermined opening angle; and a step of forming an insulating translucent sheet having a length substantially equal to the entire length of the envelope. A sheet structure formed by disposing a pair of strip-shaped external electrodes made of a metal member on one surface and separating the electrodes from each other, and electrically connecting terminals to the ends of the external electrodes is provided on the outer peripheral surface of the envelope. The external electrode is located between the envelope and the translucent sheet, and the opening of the external electrode is an aperture. And a step of winding the lamp so as to substantially correspond to the chamber portion.
JP32183496A 1996-12-02 1996-12-02 Aperture type rare gas discharge lamp Expired - Lifetime JP3624594B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32183496A JP3624594B2 (en) 1996-12-02 1996-12-02 Aperture type rare gas discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32183496A JP3624594B2 (en) 1996-12-02 1996-12-02 Aperture type rare gas discharge lamp

Publications (2)

Publication Number Publication Date
JPH10162781A true JPH10162781A (en) 1998-06-19
JP3624594B2 JP3624594B2 (en) 2005-03-02

Family

ID=18136954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32183496A Expired - Lifetime JP3624594B2 (en) 1996-12-02 1996-12-02 Aperture type rare gas discharge lamp

Country Status (1)

Country Link
JP (1) JP3624594B2 (en)

Also Published As

Publication number Publication date
JP3624594B2 (en) 2005-03-02

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