JPH01231260A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPH01231260A
JPH01231260A JP5666488A JP5666488A JPH01231260A JP H01231260 A JPH01231260 A JP H01231260A JP 5666488 A JP5666488 A JP 5666488A JP 5666488 A JP5666488 A JP 5666488A JP H01231260 A JPH01231260 A JP H01231260A
Authority
JP
Japan
Prior art keywords
phosphor
glass tube
parts
conductors
fluorescent lamp
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
Application number
JP5666488A
Other languages
Japanese (ja)
Inventor
Takeo Nishikatsu
西勝 健夫
Takehiko Sakurai
毅彦 櫻井
Yoshinori Anzai
安西 良矩
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5666488A priority Critical patent/JPH01231260A/en
Priority to US07/311,350 priority patent/US5013966A/en
Priority to CA000591290A priority patent/CA1305510C/en
Priority to DE68915022T priority patent/DE68915022T2/en
Priority to EP89102691A priority patent/EP0329143B1/en
Publication of JPH01231260A publication Critical patent/JPH01231260A/en
Pending legal-status Critical Current

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  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To reduce a change with the passage of time of the optical output for securing a long life by providing two mutually opposing parts, to which no phosphor is applied, on the inside of a glass tube and arranging conductors on the glass tube outside of these parts respectively. CONSTITUTION:Gas 2 such as rare gas and mercury vapor are sealed in the inside of a glass tube 1 and a phosphor 3 is applied to the inside of the glass tube 1. However, the phosphor 3 arranges the opening parts (the parts having no phosphor 3) 9a and 9b in the tube axis direction in the two diametrically opposing places on the glass tube inside and the respective conductors 4a and 4b are arranged on the outside of the glass tube 1 of these respective opening parts 9a and 9b. Accordingly, the phosphor 3 does not exist in the parts of the conductors 4a and 4b receiving a shock of electrons and ions so that there is no danger of generating remarkable deterioration of the phosphor due to the shock of electrons and ions. Thereby, a change with the passage of time due to deterioration of an optical output is little so that a long life can be secured.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、希カスあるいは金属蒸気等の放電気体を、
内面に蛍光物7Tを塗布したガラス容器(バルブ)内に
封入し、該容器の外面に導電体を配設した蛍光ランプに
関するものである。
[Detailed Description of the Invention] [Industrial Field of Application] This invention provides a method for discharging electrical discharge materials such as rare scum or metal vapor.
The present invention relates to a fluorescent lamp that is enclosed in a glass container (bulb) whose inner surface is coated with fluorescent substance 7T, and a conductor is provided on the outer surface of the container.

〔従来の技術〕[Conventional technology]

内面に蛍光物?’Tを塗布したカラス管内に希ガスある
いは金属蒸気等の放電気体を封入し、該ガラス管の外面
に配設した導電体に高周波電圧を印加して、管内部の気
体を放電させ、これによる発生する紫外線を蛍光物質に
よって所要の光に変換して利用する従来のこの種の蛍光
ランプの一例として、第3図および第4図に、特開昭6
0−12660号公報に開示された蛍光ランプの縦断面
平面図および拡大横断面図をそれぞれ示す。
Fluorescent material on the inside? A discharge material such as a rare gas or metal vapor is sealed in a glass tube coated with 'T, and a high frequency voltage is applied to the conductor arranged on the outer surface of the glass tube to discharge the gas inside the tube. Figures 3 and 4 show an example of a conventional fluorescent lamp of this type, which converts the generated ultraviolet rays into the required light using a fluorescent material.
1 shows a vertical cross-sectional plan view and an enlarged cross-sectional view of a fluorescent lamp disclosed in Japanese Patent No. 0-12660, respectively.

両国において、容器カラス管1の内部には、水銀蒸気お
よび希ガス2を封入し、ガラス管1の内面には蛍光体3
か軸管方向に全面的に塗布されている。4a、4bはガ
ラス管1の外面に直径方向に対向して配設された一対の
導電体である。5は、電源と接続するためのプラグ、6
はスイッチ、7は高周波電源である。
In both countries, the inside of the container glass tube 1 is filled with mercury vapor and rare gas 2, and the inner surface of the glass tube 1 is filled with phosphor 3.
It is applied completely in the axial direction. 4a and 4b are a pair of conductors arranged on the outer surface of the glass tube 1 to face each other in the diametrical direction. 5 is a plug for connecting to a power source, 6
is a switch, and 7 is a high frequency power supply.

つきに、以上の構成における作用を説明する。Finally, the operation of the above configuration will be explained.

プラグ5より電源を印加し、スイッチ6をONすると高
周波′1π源7か高周波を発生して導電体4a、4bに
印加され、放電8か発生する。この放電8により水銀原
子か励起されて紫外線を発生し、これにより蛍光体3が
発光する。
When power is applied from the plug 5 and the switch 6 is turned on, a high frequency '1π source 7 generates a high frequency, which is applied to the conductors 4a and 4b, and a discharge 8 is generated. This discharge 8 excites mercury atoms to generate ultraviolet rays, which causes the phosphor 3 to emit light.

このような蛍光ランプにあっては、ガラスバルブ内部に
フィラメントなどの電極がないため端部の黒化もなく、
長寿命が期待できる。なお、このような蛍光ランプは、
騒音発生上防止上の理由から、20k11□以上の高周
波で点灯する必要があるが、525 k112以上はラ
ジオのAM周波数帯のため、ノイズ発生源となるために
不適当である。
In such fluorescent lamps, there is no electrode such as a filament inside the glass bulb, so there is no blackening at the end.
You can expect a long life. In addition, such fluorescent lamps are
To prevent noise generation, it is necessary to use a high frequency of 20k11□ or higher, but 525k112 or higher is inappropriate because it is in the radio AM frequency band and becomes a source of noise.

【発明が解決しようとする課題〕[Problem to be solved by the invention]

従来例の蛍光ランプは以上のように構成されていたので
、導電体4a、4bの部分が電子やイオンの衝撃を受け
ることにより、使用中にこの部分のガラス管内部の蛍光
体3が他の部分に比べて急激に劣化し、光出力の劣化を
招いて全体の光出力の経時的変化を生ずるという問題点
があった。特にファクシミリ等の光学的な情報機器など
光出力の変化が間がとなるような応用においては短寿命
となってしまう。
Since the conventional fluorescent lamp was constructed as described above, when the conductors 4a and 4b are bombarded by electrons and ions, the phosphor 3 inside the glass tube in these parts is exposed to other parts during use. There is a problem in that the optical output deteriorates more rapidly than the other parts, leading to deterioration of the optical output and causing a change in the overall optical output over time. Particularly in applications such as optical information equipment such as facsimiles, where the optical output changes over time, the lifespan is short.

この発明は、以上のような従来例の問題点を解消するた
めになされたもので、光出力の劣化の経時的変化が少な
く、長寿命のこの種の蛍光ランプの提供を[1的として
いる。
This invention was made in order to solve the problems of the conventional examples as described above, and aims to provide a fluorescent lamp of this type that has a long life and has little deterioration in light output over time. .

〔課題を解決するための手段〕[Means to solve the problem]

このため、この発明に係る蛍光ランプにおいては、ガラ
スバルブ内面に、それぞれ対向する2つ蛍光体の存在し
ない複数の部分を配設するとともに、該各部分のガラス
バルブ外面にそれぞれ各導電体を配設するよう構成する
ことにより、前記目的を達成しようとするものである。
For this reason, in the fluorescent lamp according to the present invention, a plurality of portions where two phosphors are not present are provided on the inner surface of the glass bulb, and each conductor is provided on the outer surface of the glass bulb in each portion. The purpose of the present invention is to achieve the above object by configuring the system to provide the following information.

〔作用) 以上のような構成のこの発明に係る蛍光ランプは、電子
やイオンのIffを受ける導電体の部分に蛍光体が存在
しないため、従来例におけるような電子やイオンの衝撃
による蛍光体の著しい劣化を生ずる怖れがないため、光
出力の劣化による経時変化が少なく、長寿命が確保され
る。
[Function] In the fluorescent lamp according to the present invention having the above-described structure, since there is no phosphor in the part of the conductor that receives Iff from electrons and ions, the phosphor is not affected by the impact of electrons and ions as in the conventional example. Since there is no risk of significant deterioration, there is little change in optical output over time due to deterioration, and a long life is ensured.

(実施例) 以下に、この発明を実施例に基づいて説明する。第1図
に、この発明に係るこの種の蛍光ランプの一実施例の断
面側面図を示し、前記従来例の相当図第4図におけると
同一(相当)構成要素は同一符号で表わす。
(Examples) The present invention will be described below based on Examples. FIG. 1 shows a cross-sectional side view of an embodiment of this type of fluorescent lamp according to the present invention, and the same (equivalent) components as in FIG. 4, which is a corresponding diagram of the conventional example, are designated by the same reference numerals.

(構成) 第1図において、ガラス管(またはバルブ)1の内部に
は、希カスや水銀蒸気などの放電気体2か封入されてい
る。ガラス管1の内面には蛍光体3か塗布されているか
、蛍光体3はガラス管内面の直径的に対向する2カ所に
管軸方向の開口部(蛍光体3の存在しない部分)9a、
9bを配設してあり、この各間[1部9a、9bのガラ
ス管1の外面に各導電体4a、4bを配設している。
(Structure) In FIG. 1, a glass tube (or bulb) 1 is filled with a discharge material 2 such as dilute scum or mercury vapor. The inner surface of the glass tube 1 is coated with a phosphor 3, and the phosphor 3 has openings in the tube axis direction (portions where the phosphor 3 does not exist) 9a at two diametrically opposed locations on the inner surface of the glass tube.
9b, and conductors 4a, 4b are provided on the outer surface of the glass tube 1 in the first portions 9a, 9b.

(作用) 各導電体4a、4.bのガラス管1の内面ては、放電を
持続するための電離のために高い電極降下電圧か発生し
、この電圧によって加速された電子やイオンが衝突する
。しかし、この部分は蛍光体3の存在しない各間[1部
9a、9bとなっているため、蛍光体3は直接この衝7
を受けることかない。このため、蛍光体3は電子やイオ
ンの#撃による急激な劣化を生ずる怖れが解消される。
(Function) Each conductor 4a, 4. On the inner surface of the glass tube 1 in b, a high electrode drop voltage is generated due to ionization to sustain the discharge, and electrons and ions accelerated by this voltage collide. However, since this part is between each part 9a and 9b where the phosphor 3 does not exist, the phosphor 3 is directly affected by this collision.
I have never received one. Therefore, the fear of rapid deterioration of the phosphor 3 due to bombardment with electrons and ions is eliminated.

なお、上記実施例において、各導電体4a。Note that in the above embodiment, each conductor 4a.

4bを高反射率材料により形成することにより、蛍光体
3の各開口部9a、9bからの光を反射させることによ
り、さらに光を行動に利用できて高効率とすることがで
きる。
By forming 4b from a high reflectance material and reflecting the light from each opening 9a, 9b of the phosphor 3, the light can be further utilized for action, resulting in high efficiency.

(他の実施例) 第2図に、この発明の他の実施例の縦断面正面図を示し
、面記第1.3.4図におけると同一(相当)構成要素
は同一または相当符号で表わす。
(Other Embodiments) Fig. 2 shows a vertical cross-sectional front view of another embodiment of the present invention, and the same (equivalent) components as in Fig. 1.3.4 are represented by the same or equivalent symbols. .

本実施例は、ガラス管1の内面に蛍光体3か管軸方向に
〃に対向する両端部9c、9dを除いた部分に塗布され
ており、蛍光体3の存在しない上記対向両端部9c、9
dのガラス管外面に一対の導電体4c、4dを配設した
ものである。
In this embodiment, the phosphor 3 is coated on the inner surface of the glass tube 1 except for the opposite ends 9c and 9d, which face each other in the tube axis direction. 9
A pair of conductors 4c and 4d are arranged on the outer surface of the glass tube d.

この実施例においても、航記第1実施例と同様に、導電
体4c、4dに高周波電源7より高周波か印加されるこ
とにより導電体4cと4d間に放電が発生する。導電体
4c、4dの内面には放電を維持するための高い電極降
下電圧が発生し、この電圧によって加速された′lu子
およびイオンかバルブ内面に衝突するか、この部分には
蛍光体か存在しないため、これによる激しい劣化は生じ
得ない。
In this embodiment as well, as in the first embodiment, a high frequency wave is applied from the high frequency power supply 7 to the conductors 4c and 4d, thereby generating a discharge between the conductors 4c and 4d. A high electrode drop voltage is generated on the inner surfaces of the conductors 4c and 4d to maintain the discharge, and either the 'lu molecules and ions accelerated by this voltage collide with the inner surface of the bulb, or there is a phosphor present in these parts. Therefore, severe deterioration cannot occur due to this.

一方、蛍光体3の塗!5された部分は、電位傾度の低い
陽光柱となり、電子やイオンによる衝撃は小さく、これ
による蛍光体3の劣化は小さい。かつ、陽光柱ては側面
か導′I「体により遮蔽されていないため、高い発光効
率か1iIらねる。
On the other hand, apply phosphor 3! 5 becomes a positive column with a low potential gradient, the impact of electrons and ions is small, and the deterioration of the phosphor 3 due to this is small. In addition, since the sunlight column is not shielded by the side surface or the conductive body, the luminous efficiency is high.

なお、この第2実bh例においては、ガラス管1の両端
部のそれぞれ側面部のみを覆うように導′市体4c、4
dを配設したが、ガラス管1の管軸方向に+1直な各端
面をも覆うようにしても差支えないことはもちろんであ
る。
In this second example bh, the guide bodies 4c, 4 are arranged so as to cover only the side surfaces of both ends of the glass tube 1.
d is provided, but it goes without saying that each end face of the glass tube 1 that is perpendicular to +1 in the tube axis direction may also be covered.

(発明の効果〕 以1−1説明したように、この発明によ打ばガラス管の
内面に、lfに対向する2つの蛍光体の塗イ1丁されて
ない部分を設け、この部分のガラス管外面にそ、れ−f
−わ導電体を配設するよう構成したため、′1πfやイ
オンの直接的な衝撃を蛍光体が受けることかなくなり、
蛍光体の劣化か少ないため、光出力の経時変化の少ない
長寿命のこの種の蛍光ランプか得られた。
(Effects of the Invention) As explained in 1-1, according to the present invention, two uncoated portions of phosphor facing lf are provided on the inner surface of the glass tube, and the glass of this portion is On the outer surface of the tube - f
- Since the structure is configured so that a conductor is provided, the phosphor is not subjected to direct impact from '1πf or ions,
This type of fluorescent lamp has a long lifespan with little change in light output over time due to less deterioration of the phosphor.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、この発明による一実施例の蛍光ランプを示′
1−断面側面図、第2図は、他の実施例の縦断面IL而
面、第3図は、従来の蛍光ランプを示す縦断面IE而面
、第4図は、第3図の拡大横断面図である。 1・・・・・・ガラス管(バルブ) 2・・・・・・放電気体 3・・・・・・蛍光体 7・・・・・・高周波電踪 なお、各図中、同一符号は同一または相当構成要素を示
す。
FIG. 1 shows an embodiment of a fluorescent lamp according to the present invention.
1 - sectional side view, FIG. 2 is a vertical cross-sectional view of another embodiment, FIG. 3 is a vertical cross-sectional view of a conventional fluorescent lamp, and FIG. 4 is an enlarged cross-sectional view of FIG. 3. It is a front view. 1... Glass tube (bulb) 2... Electric discharge body 3... Fluorescent substance 7... High frequency electromagnetic radiation Note that the same symbols in each figure are the same. or indicate an equivalent component.

Claims (1)

【特許請求の範囲】[Claims] ガラスバルブの内面に蛍光体層を有し、外面に一対の導
電体を配設し、該各導電体に高周波電圧を印加すること
により、前記バルブ内の放電気体を放電させるよう構成
した蛍光ランプにおいて、前記バルブ内面に、互に対向
する2つの蛍光体の存在しない部分を配設するとともに
、該各部分の前記ガラスバルブ外面にそれぞれ前記各導
電体を配設したことを特徴とする蛍光ランプ。
A fluorescent lamp having a phosphor layer on the inner surface of a glass bulb, a pair of conductors arranged on the outer surface, and configured to discharge a discharge body in the bulb by applying a high frequency voltage to each conductor. A fluorescent lamp characterized in that two mutually opposing portions where no phosphor is present are disposed on the inner surface of the bulb, and each of the conductors is disposed on the outer surface of the glass bulb in each portion. .
JP5666488A 1988-02-17 1988-03-10 Fluorescent lamp Pending JPH01231260A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP5666488A JPH01231260A (en) 1988-03-10 1988-03-10 Fluorescent lamp
US07/311,350 US5013966A (en) 1988-02-17 1989-02-15 Discharge lamp with external electrodes
CA000591290A CA1305510C (en) 1988-02-17 1989-02-16 Discharge lamp
DE68915022T DE68915022T2 (en) 1988-02-17 1989-02-16 Discharge lamp.
EP89102691A EP0329143B1 (en) 1988-02-17 1989-02-16 Discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5666488A JPH01231260A (en) 1988-03-10 1988-03-10 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPH01231260A true JPH01231260A (en) 1989-09-14

Family

ID=13033665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5666488A Pending JPH01231260A (en) 1988-02-17 1988-03-10 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPH01231260A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425151U (en) * 1990-06-22 1992-02-28
JPH0438659U (en) * 1990-07-28 1992-03-31
JPH04116399U (en) * 1991-03-29 1992-10-16 日本電気ホームエレクトロニクス株式会社 Lighting device for external wall electrode type rare gas discharge lamp
KR20030041704A (en) * 2001-11-21 2003-05-27 주식회사 우영 External electrode fluorescent lamp
KR100722347B1 (en) * 2002-06-12 2007-05-29 하리손 도시바 라이팅구 가부시키가이샤 Low-pressure discharge lamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425151U (en) * 1990-06-22 1992-02-28
JPH0438659U (en) * 1990-07-28 1992-03-31
JPH04116399U (en) * 1991-03-29 1992-10-16 日本電気ホームエレクトロニクス株式会社 Lighting device for external wall electrode type rare gas discharge lamp
KR20030041704A (en) * 2001-11-21 2003-05-27 주식회사 우영 External electrode fluorescent lamp
KR100722347B1 (en) * 2002-06-12 2007-05-29 하리손 도시바 라이팅구 가부시키가이샤 Low-pressure discharge lamp

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