JPH0660849A - Fluorescent lamp - Google Patents
Fluorescent lampInfo
- Publication number
- JPH0660849A JPH0660849A JP5013692A JP1369293A JPH0660849A JP H0660849 A JPH0660849 A JP H0660849A JP 5013692 A JP5013692 A JP 5013692A JP 1369293 A JP1369293 A JP 1369293A JP H0660849 A JPH0660849 A JP H0660849A
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- diameter
- fluorescent lamp
- tube
- glass
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
- H01J61/523—Heating or cooling particular parts of the lamp
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は蛍光ランプに係り、特に
従来の硝子管径より小さい中央部の硝子細管内で紫外線
の自己吸収率を少なくし、従来の硝子管径より広い一対
の硝子筒において内部温度の上昇を抑制することにより
発光効率を向上させるのみならず黒化現象の速度を遅延
させ、硝子管内の冷却効率を向上した蛍光ランプに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp, and more particularly, to a pair of glass tubes having a wider self-absorption rate of ultraviolet rays in a central glass tube smaller than a conventional glass tube diameter, which is wider than the conventional glass tube diameter. In the above, the present invention relates to a fluorescent lamp in which not only the luminous efficiency is improved by suppressing the rise of the internal temperature, but also the speed of the blackening phenomenon is delayed to improve the cooling efficiency in the glass tube.
【０００２】[0002]
【従来の技術】通常、照明用光源は白熱ランプ系と放電
ランプ系とに大別されており、そのうち前記放電ランプ
系は蛍光ランプと水銀ランプおよび高圧ナトリウム、ハ
ロゲンランプ等に大別されるが住宅用照明器具としては
前記蛍光ランプが主に用いられいる。2. Description of the Related Art Generally, light sources for illumination are roughly classified into an incandescent lamp system and a discharge lamp system, of which the discharge lamp system is roughly classified into a fluorescent lamp, a mercury lamp, a high-pressure sodium lamp, a halogen lamp and the like. The fluorescent lamp is mainly used as a home lighting fixture.
【０００３】従来の直管型蛍光ランプは図５に示したよ
うに長さがＬ２で直径がＤである中空の硝子管１両端に
ベース５が付着されてピン１０の間隔がＬ１で構成され
る。前記透明硝子管１は管径がＤの一定な円筒型で内面
に蛍光体２の薄膜を形成するように塗布され、その両端
にはピン１０のベース５が設けられ二重コイル型タング
ステンフィラメントに電子放射物質を塗布した陰電極３
および陽電極４が各々装着されている。そして、一定の
円筒型の硝子管１内には水銀および放電を容易に図れる
ための圧力が数ｍｍＨｇのアルゴンまたはクリプトン
（ＫＲＹＰＴＯＮ）系のガラスを封入する。As shown in FIG. 5, a conventional straight tube fluorescent lamp has a base 5 attached to both ends of a hollow glass tube 1 having a length L2 and a diameter D, and a space between pins 10 is L1. It The transparent glass tube 1 is a cylindrical type having a constant tube diameter D and is coated so as to form a thin film of the phosphor 2 on the inner surface, and a base 5 of a pin 10 is provided at both ends thereof to form a double coil type tungsten filament. Cathode 3 coated with electron emitting material
And a positive electrode 4 is attached respectively. Then, mercury and argon or krypton-based glass having a pressure of several mmHg for facilitating electric discharge are sealed in a certain cylindrical glass tube 1.
【０００４】このように構成されている完成品の従来の
直管型蛍光ランプを点灯させるため硝子管１のベース５
に固定付着してあるピン１０の間、すなわち陰電極３と
陽電極４との間に該当電圧を印加する。この際、封入さ
れた硝子管１内の陰電極３のフィラメントに電流が流れ
て予熱されているので熱電子が放出することになるが、
この熱電子は電界により陽電極４のフィラメントに移動
されて放電が開始される。このような放電によって発生
する電子６は封入された硝子管１内の温度上昇により気
化した水銀蒸気の水銀原子７と衝突し、これにより前記
水銀原子７を励起されるので硝子管１の側壁に紫外線８
を放射することになる。このように蛍光体２を塗布した
前記硝子管１の側壁に放射される紫外線８は薄膜の前記
蛍光体２に吸収された後、可視光線９に変化され硝子管
１の外界に放出され充分な蛍光ランプの可視光線９が得
られる。The base 5 of the glass tube 1 for lighting the conventional straight tube fluorescent lamp of the finished product thus constructed
A corresponding voltage is applied between the pins 10 fixedly attached to the negative electrode 3, that is, between the negative electrode 3 and the positive electrode 4. At this time, a current flows through the filament of the negative electrode 3 in the enclosed glass tube 1 and is preheated, so that thermoelectrons are emitted.
The thermoelectrons are moved to the filament of the positive electrode 4 by the electric field and the discharge is started. The electrons 6 generated by such a discharge collide with the mercury atoms 7 of the vaporized mercury vapor due to the temperature rise in the enclosed glass tube 1, and the mercury atoms 7 are excited thereby, so that the side walls of the glass tube 1 are excited. UV light 8
Will be emitted. The ultraviolet rays 8 radiated on the side wall of the glass tube 1 coated with the fluorescent material 2 are absorbed by the thin film fluorescent material 2 and then converted into visible rays 9 to be emitted to the outside of the glass tube 1. The visible light 9 of the fluorescent lamp is obtained.
【０００５】[0005]
【発明が解決しようとする課題】前述したように適当な
可視光線９が得られるように封入された硝子管１内で水
銀原子７の励起現象によって放射される紫外線８は硝子
管１内壁に塗布された蛍光体２までの放射距離が遠ざか
ると薄膜の前記蛍光体２に到着する以前に自己吸収して
しまう場合が多く発生するので、封入された硝子管１内
で紫外線８の自己吸収を少なくするためでき得る限り、
前記硝子管１の直径Ｄが小さい必要がある。As described above, the ultraviolet rays 8 radiated by the excitation phenomenon of the mercury atoms 7 in the glass tube 1 enclosed so as to obtain an appropriate visible ray 9 are applied to the inner wall of the glass tube 1. When the radiation distance to the stored phosphor 2 increases, self-absorption often occurs before the phosphor 2 arrives at the thin film, so that the self-absorption of the ultraviolet rays 8 in the enclosed glass tube 1 is reduced. As long as you can
The diameter D of the glass tube 1 needs to be small.
【０００６】しかし、紫外線８の自己吸収率を減少させ
るため硝子管１の全長Ｌ２を保持しながら直径Ｄだけを
既存の直径より小さくすれば硝子管１内壁に薄く塗布さ
れた蛍光体２が熱を受けることになるので、前記蛍光体
２の温度特性の影響による発光強度が低下する。また、
前述の蛍光体２の温度上昇で硝子管１の内部温度が上昇
することにより水銀蒸気も圧力が高まる。これは硝子管
１内で水銀蒸気圧が最適値よりも高くなれば紫外線８が
少量放射されるので、小量の可視光線９により蛍光ラン
プの発光効率が低下する。However, in order to reduce the self-absorption rate of the ultraviolet rays 8, if the diameter D alone is made smaller than the existing diameter while maintaining the entire length L2 of the glass tube 1, the phosphor 2 thinly applied to the inner wall of the glass tube 1 is heated. Therefore, the emission intensity is reduced due to the influence of the temperature characteristics of the phosphor 2. Also,
As the temperature of the phosphor 2 rises, the internal temperature of the glass tube 1 rises, so that the pressure of mercury vapor also rises. This is because if the mercury vapor pressure in the glass tube 1 becomes higher than the optimum value, a small amount of the ultraviolet rays 8 will be radiated, and a small amount of visible light 9 will reduce the luminous efficiency of the fluorescent lamp.
【０００７】一方従来の蛍光ランプの点灯時封入された
硝子管１の両端で陰電極３のフィラメントには硝子管１
内の陽イオンが大きいエネルギーとして衝突することに
なるので前記陰電極３のフィラメントに塗布された電子
放射物質が徐々に飛散され、このように飛散する電子放
射物質は前記陰電極３のフィラメント周囲の硝子管１両
端壁に吸着され黒化状態で現われる。このような状態で
点灯時間が長びけば前記硝子管１の両端壁に黒化部分が
拡散される。これは前記硝子管１の黒化部分で導電性が
生じ放電に支障をきたすのみならず前記黒化部分により
蛍光ランプの発光効率が低下するという問題点があっ
た。On the other hand, when the conventional fluorescent lamp is turned on, the glass tube 1 is attached to the filament of the negative electrode 3 at both ends of the glass tube 1 enclosed.
Since the cations in the inside collide with each other as a large energy, the electron emitting material applied to the filament of the negative electrode 3 is gradually scattered, and the electron emitting material thus scattered is around the filament of the negative electrode 3. It is adsorbed on both end walls of the glass tube 1 and appears in a blackened state. In such a state, if the lighting time is long, the blackened portion is diffused on both end walls of the glass tube 1. This causes a problem that not only the blackened portion of the glass tube 1 becomes electrically conductive and disturbs the discharge, but also the blackened portion lowers the luminous efficiency of the fluorescent lamp.
【０００８】本発明の目的は、封入された硝子管内で紫
外線の自己吸収率を小さくするのみならず硝子管の両端
で黒化現象の速度を遅延させると共に硝子管内の冷却効
率と発光効率を増進させることができるように中央部が
従来の硝子管径よりも小さい硝子細管を従来の硝子管径
よりも広い両端の硝子筒に溶着させることにより前記硝
子細管内部の温度上昇を抑制すると共に前記硝子筒の側
壁と陰電極のフィラメントとの間隔の充分な空間により
前記陰電極のフィラメントに塗布された電子放射物質の
飛散現象速度を遅延させることができる蛍光ランプを供
することにある。The object of the present invention is not only to reduce the self-absorption rate of ultraviolet rays in the enclosed glass tube but also to delay the rate of the blackening phenomenon at both ends of the glass tube and to enhance the cooling efficiency and the luminous efficiency in the glass tube. As the center of the glass tube can be made smaller, the glass tube having a diameter smaller than that of the conventional glass tube is welded to the glass tubes at both ends which are wider than the diameter of the conventional glass tube. An object of the present invention is to provide a fluorescent lamp capable of delaying the scattering phenomenon speed of the electron emitting material applied to the negative electrode filament by a sufficient space between the side wall of the cylinder and the negative electrode filament.
【０００９】[0009]
【課題を解決するための手段】本発明による蛍光ランプ
は、直径Ｄ１で一開口部が内側に縮められ他の開口部が
側壁で縮められると共にその中央に孔を形成させた一対
の硝子筒と、該硝子筒の一開口部に接着するベースと、
前記硝子筒の孔に嵌合溶着されて、前記硝子筒の直径Ｄ
１より小さい直径Ｄ２を有すると共に内壁に薄膜の蛍光
体が塗布されている硝子細管とで構成されたことを特徴
とする。SUMMARY OF THE INVENTION A fluorescent lamp according to the present invention comprises a pair of glass tubes having a diameter D1 in which one opening is contracted inward and the other opening is contracted in a side wall and a hole is formed in the center thereof. A base that adheres to one opening of the glass tube,
The diameter D of the glass tube is fitted and welded to the hole of the glass tube.
It has a diameter D2 smaller than 1 and is composed of a glass capillary tube having an inner wall coated with a thin film phosphor.
【００１０】[0010]
【実施例】以下、本発明の実施例を図に依り詳細に説明
する。Embodiments of the present invention will be described in detail below with reference to the drawings.
【００１１】図１は本発明の一実施例に関する直管型蛍
光ランプを示したもので、本発明の蛍光ランプは発光効
率を増進させるため中央部分で紫外線の自己吸収率が小
さくなるように所定の長さＬ６で硝子細管１９の直径Ｄ
２が従来の硝子管径より小さく形成され、硝子細管１９
内部の温度上昇を抑制するように所定の長さＬ５で直径
Ｄ１が従来の硝子管径Ｄよりも広く形成される硝子筒１
１の端で硝子筒１１に硝子細管１９を溶着させることに
よって、硝子筒１１は空間が広く管壁の面積が広いので
硝子細管１９の冷却効率の向上が図られる。FIG. 1 shows a straight tube type fluorescent lamp according to an embodiment of the present invention. The fluorescent lamp of the present invention is designed to have a small self-absorption rate of ultraviolet rays in the central portion in order to improve luminous efficiency. With a length of L6, the diameter D of the glass capillary 19
2 is formed to be smaller than the diameter of the conventional glass tube, and the glass tube 19
A glass tube 1 having a predetermined length L5 and a diameter D1 wider than a conventional glass tube diameter D so as to suppress an internal temperature rise.
By welding the glass capillary tube 19 to the glass tube 11 at the end of 1, the glass tube 11 has a large space and a large wall area, so that the cooling efficiency of the glass tube 19 can be improved.
【００１２】また、本発明は図２に示したように硝子筒
１１の一側壁Ｃ１と陰電極１２との間に充分な空間を形
成することができ前記陰電極１２のフィラメントに塗布
した電子放射物質の飛散現象の速度を遅延させることが
できる。これは前記の飛散現象速度はＶｅ／Ｐ・Ｄ（こ
こでＶｅは陰電極降下電圧、Ｐは気体圧力、Ｄは陰電極
との距離）で陰電極１２と硝子筒１１壁との距離に反比
例するので、陰電極１２と硝子筒１１壁との距離が広く
なり黒化現象速度を遅延させることもできる。Further, according to the present invention, as shown in FIG. 2, a sufficient space can be formed between one side wall C1 of the glass tube 11 and the negative electrode 12, and electron emission applied to the filament of the negative electrode 12 can be achieved. The speed of the material scattering phenomenon can be delayed. This is because the speed of the scattering phenomenon is Ve / P · D (where Ve is the negative electrode drop voltage, P is the gas pressure, and D is the distance between the negative electrode) and is inversely proportional to the distance between the negative electrode 12 and the glass tube 11 wall. Therefore, the distance between the negative electrode 12 and the wall of the glass tube 11 becomes wider, and the blackening phenomenon speed can be delayed.
【００１３】図２に示した硝子筒１１は直径がＤ１で図
５に示した従来の硝子管１のＤ直径よりも大きい円筒型
硝子管で一開口部で内側に縮こまれ間隔がＬ３のピン１
８が形成されたベース１７を容易に嵌着できる。また、
硝子筒１１の他の開口部は側壁Ｃ１で縮まると共にその
中央に前述の硝子細管１９が挿入できる孔Ｃ３が形成さ
れており、その孔Ｃ３の周辺には前記硝子細管１９に容
易に溶着できるようにＢ２状形態で外側に縁部が形成さ
れている。上記硝子筒１１の縁部Ｂ２部分と硝子細管１
９が重畳され結合部分が堅固に溶着される。The glass tube 11 shown in FIG. 2 is a cylindrical glass tube having a diameter of D1 and larger than the D diameter of the conventional glass tube 1 shown in FIG. Pin 1
The base 17 on which 8 is formed can be easily fitted. Also,
The other opening of the glass tube 11 is contracted by the side wall C1 and a hole C3 into which the above-mentioned glass capillary tube 19 can be inserted is formed in the center thereof, so that the glass capillary tube 19 can be easily welded around the hole C3. The outer edge is formed in a B2 shape. The edge B2 of the glass tube 11 and the glass capillary 1
9 are overlapped and the joint portion is firmly welded.
【００１４】図３に示したように、硝子筒１１を従来の
蛍光ランプ直径Ｄよりも小さい直径がＤ２である硝子細
管１９の両側に挿入溶着させて、この硝子細管１９と両
側硝子筒１１の内壁に従来のような薄膜の蛍光体２０を
塗布して形成する。このように硝子細管１９の両側に各
々の硝子筒１１が溶着された状態で前記硝子筒１１の一
開口部にベース１７が接着され従来の蛍光ランプと同様
に陰電極１２（または陽電極１３）と排気管１４を付着
する。前記両電極１２，１３のステム１６は図２に示し
たようにＡ部分の翼部分を広くして従来のステムよりも
広いステムで溶着した後、従来と同様に溶着された硝子
細管１９と両側硝子筒１１の内部を排気させて水銀およ
び不活性ガスを封入し前記硝子筒１１にそれぞれベース
１７を接着して本発明により蛍光ランプを完成させる。As shown in FIG. 3, the glass tube 11 is inserted and welded on both sides of a glass capillary tube 19 having a diameter D2 smaller than the conventional fluorescent lamp diameter D, and the glass tube 11 and the both side glass tube 11 are welded together. The inner wall is formed by applying a conventional thin film phosphor 20. In this manner, the base 17 is adhered to one opening of the glass tube 11 with the glass tubes 11 welded on both sides of the glass capillary tube 19, and the negative electrode 12 (or the positive electrode 13) is formed as in the conventional fluorescent lamp. And the exhaust pipe 14 is attached. As shown in FIG. 2, the stems 16 of the both electrodes 12 and 13 are made by widening the wing portion of the portion A and welding with a stem wider than the conventional stem, and then the glass capillary tube 19 and both sides welded in the same manner as the conventional one. The inside of the glass tube 11 is evacuated to fill mercury and an inert gas, and the bases 17 are adhered to the glass tube 11 to complete the fluorescent lamp according to the present invention.
【００１５】従って、本発明の蛍光ランプはＬ２の全長
で（ここでＬ２＝２Ｌ５＋Ｌ６であり、Ｌ２＞Ｌ６＞２
Ｌ５で前記硝子筒１１はＬ５の長さで大部分の黒化部分
が存在することになる）従来の蛍光ランプの全長Ｌ２と
同一であり、ベース１７のピン１８間隔がＬ３で従来の
ピン１０間隔Ｌ１と同一なので従来の蛍光ランプを使用
する照明器具との代置が可能である。Therefore, the fluorescent lamp of the present invention has a total length of L2 (where L2 = 2L5 + L6, and L2>L6> 2).
At L5, the glass tube 11 has the length of L5 and most of the blackened portion is present. It is the same as the total length L2 of the conventional fluorescent lamp, and the spacing between the pins 18 of the base 17 is L3 and the conventional pin 10 is used. Since it is the same as the distance L1, it can be replaced with a conventional lighting fixture using a fluorescent lamp.
【００１６】そして、封入された硝子筒１１内で陰電極
１２のフィラメントと側壁Ｃ１との間隔Ｌ４は、前述し
たように本発明の蛍光ランプが組立てられた状態から図
２に示したように陰電極１２のフィラメントと硝子筒管
壁Ｃ２よりも広く形成されており、従来の陰電極１２の
フィラメントで発生する電子放射物質の飛散現象より速
度が遅延発生する。The space L4 between the filament of the negative electrode 12 and the side wall C1 in the enclosed glass tube 11 is as shown in FIG. 2 from the assembled state of the fluorescent lamp of the present invention as described above. It is formed wider than the filament of the electrode 12 and the glass tube wall C2, and the speed is delayed due to the scattering phenomenon of the electron emitting material generated in the conventional filament of the negative electrode 12.
【００１７】本発明の蛍光ランプは直管型硝子細管１９
を一例に挙げて説明したが、これに限らず図４（Ａ）お
よび（Ｂ）に示したように硝子細管１９を環型あるいは
Ｕ型にして硝子筒１１に溶着させて使用することもでき
る。The fluorescent lamp of the present invention is a straight tube type glass capillary tube 19
However, the present invention is not limited to this, and as shown in FIGS. 4 (A) and 4 (B), the glass capillary tube 19 may be formed into a ring shape or a U shape and welded to the glass tube 11 for use. .
【００１８】以上のように構成された本発明の蛍光ラン
プの点灯動作を説明する。A lighting operation of the fluorescent lamp of the present invention having the above-mentioned structure will be described.
【００１９】本発明の蛍光ランプを点灯させるための硝
子筒１１のベース１７にあるピン１８の間の陰電極１２
と陽電極１３との間に該当電圧を印加することになる
が、これは従来の蛍光ランプと同じ電気的現象が発生し
それに対する詳細説明は省略し封入された硝子細管１９
と両側の硝子筒１１で発生する動作のみ説明する。The negative electrode 12 between the pins 18 on the base 17 of the glass tube 11 for lighting the fluorescent lamp of the present invention.
A corresponding voltage is applied between the positive electrode 13 and the positive electrode 13, but this causes the same electrical phenomenon as in a conventional fluorescent lamp, and detailed description thereof is omitted and the enclosed glass capillary tube 19 is omitted.
Only the operations that occur in the glass tubes 11 on both sides will be described.
【００２０】先ず、蛍光ランプの電気的現象で従来の硝
子管径よりも小さい直径がＤ２の硝子細管１９による封
入された管内で紫外線の自己吸収率が小さくなるので発
光効果が改善される。しかしながら、小さい直径がＤ２
の前記硝子細管１９壁に塗布された蛍光体２０で発生す
る熱は、前記硝子細管１９の両側に溶着されている従来
の硝子管径よりも広い直径がＤ１の硝子筒１１でそれぞ
れ伝導されるので、この広い表面積で冷却効率を高め
る。なお、封入された両側の硝子筒１１と硝子細管１９
内のガス圧力は前述のように両側の硝子筒１１の内部容
積が大きく形成されており圧力調整効果を高めることが
できる。First, due to the electrical phenomenon of the fluorescent lamp, the self-absorption rate of ultraviolet rays is reduced in the tube enclosed by the glass capillary tube 19 having a diameter D2 smaller than the conventional glass tube diameter, so that the light emitting effect is improved. However, the small diameter is D2
The heat generated by the phosphor 20 applied to the wall of the glass capillary 19 is conducted in the glass tube 11 having a diameter D1 wider than the diameter of the conventional glass tube welded on both sides of the glass capillary 19. Therefore, this large surface area enhances cooling efficiency. The enclosed glass tube 11 and glass tube 19 on both sides are enclosed.
As described above, the internal pressure of the internal gas of the glass tube 11 on both sides of the gas pressure is large so that the pressure adjusting effect can be enhanced.
【００２１】なお、封入された前記硝子筒１１内に設け
られた陰電極１２のフィラメントより発生する放射物質
飛散現象は、従来の硝子管径よりも広い直径がＤ１の硝
子筒１１内部の空間が広くなっているのでその時間を遅
延することができ陰電極１２のフィラメント周囲に生じ
る黒化現象を現象させる。従って、本発明の蛍光ランプ
は硝子筒１１内の黒化現象に因り寿命減縮および黒化現
象での発光効率低下を緩慢に減少させる。The radiation scattering phenomenon generated from the filament of the negative electrode 12 provided in the enclosed glass tube 11 is caused by the space inside the glass tube 11 having a diameter D1 wider than the conventional glass tube diameter. Since it is wide, the time can be delayed and the blackening phenomenon that occurs around the filament of the negative electrode 12 is caused. Therefore, the fluorescent lamp of the present invention gradually reduces the life due to the blackening phenomenon in the glass tube 11 and the decrease in the luminous efficiency due to the blackening phenomenon.
【００２２】また、封入された前記硝子筒１１内の陰電
極１２のフィラメントと管内壁Ｃ２との隔間が広く形成
されているので、前記陰電極１２での熱輻射による熱損
失が減少して広い直径Ｄ１をもつ前記硝子筒１１の温度
上昇が減少されるので蛍光ランプの熱効率を向上させ
る。従って、本発明の蛍光ランプは中央の硝子細管１９
内で紫外線の自己吸収率が減少し両端の硝子筒１１で内
部温度の上昇を抑制することができるので発光効率を高
め黒化現象の速度も遅延させる。Further, since the gap between the filament of the negative electrode 12 inside the enclosed glass tube 11 and the inner wall C2 of the tube is formed wide, heat loss due to heat radiation at the negative electrode 12 is reduced. Since the temperature rise of the glass tube 11 having the wide diameter D1 is reduced, the thermal efficiency of the fluorescent lamp is improved. Therefore, the fluorescent lamp of the present invention has a glass tube 19 at the center.
Since the self-absorption rate of ultraviolet rays is reduced inside and the rise of the internal temperature can be suppressed by the glass tubes 11 at both ends, the luminous efficiency is increased and the speed of the blackening phenomenon is also delayed.
【００２３】[0023]
【発明の効果】以上説明したように本発明によれば、封
入された硝子管内で紫外線の自己吸収率を小さくするの
みならず硝子管の両端で黒化現象の速度を遅延させて硝
子管内の冷却効率と発光効率を増進させることができる
ように中央部が従来の硝子管径よりも小さい中央部の硝
子細管を従来の硝子管径より広い両端部の硝子筒に溶着
させることにより前記硝子細管内部の温度上昇を抑制し
ながら前記硝子筒の側壁と陰電極のフィラメントとの間
の充分な空間により前記陰電極のフィラメントに塗布さ
れた電子放射物質の飛散現象速度を遅延させることがで
きる蛍光ランプを提供する。As described above, according to the present invention, not only the self-absorption rate of ultraviolet rays is reduced in the enclosed glass tube, but also the rate of the blackening phenomenon is delayed at both ends of the glass tube to reduce the rate of blackening. In order to improve the cooling efficiency and the luminous efficiency, the central portion of the glass tube is smaller than the conventional glass tube diameter, and the glass tube is welded to the glass tubes at both ends wider than the conventional glass tube diameter. A fluorescent lamp capable of delaying the scattering phenomenon speed of the electron emitting material applied to the negative electrode filament by a sufficient space between the side wall of the glass tube and the negative electrode filament while suppressing the internal temperature rise. I will provide a.
【００２４】また、本発明は前述した内容に限らず、本
発明の事象と原理に外れず特許請求の範囲に記載された
内容に包含するすべての修正、変更および改良を含め
る。The present invention is not limited to the above-mentioned contents, but includes all the modifications, changes and improvements included in the contents described in the claims without departing from the phenomenon and principle of the present invention.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例に関し直管型蛍光ランプを示
した図である。FIG. 1 is a diagram showing a straight tube fluorescent lamp according to an embodiment of the present invention.
【図２】図１に示した蛍光ランプの要部分解断面図であ
る。FIG. 2 is an exploded cross-sectional view of main parts of the fluorescent lamp shown in FIG.
【図３】本発明の蛍光ランプの要部分解斜視図である。FIG. 3 is an exploded perspective view of essential parts of the fluorescent lamp of the present invention.
【図４】本発明の蛍光ランプの他の実施例の環型および
Ｕ型蛍光ランプを示す外形図である。FIG. 4 is an outline view showing a ring-shaped and U-shaped fluorescent lamp of another embodiment of the fluorescent lamp of the present invention.
【図５】従来直管型蛍光ランプの内部構造を示す図であ
る。FIG. 5 is a diagram showing an internal structure of a conventional straight tube fluorescent lamp.
１ 硝子管 ２，２０ 蛍光体 ３，１２ 陰電極 ４，１３ 陽電極 ５，１７ ベース ６ 電子 ７ 水銀原子 ８ 紫外線 ９ 可視光線 １０，１８ ピン １１ 硝子筒 １４ 排気管 １５ リード線 １６ ステム １９ 硝子細管 1 glass tube 2,20 phosphor 3,12 negative electrode 4,13 positive electrode 5,17 base 6 electron 7 mercury atom 8 ultraviolet ray 9 visible light 10,18 pin 11 glass tube 14 exhaust pipe 15 lead wire 16 stem 19 glass tube
Claims (3)
の開口部が側壁で縮められると共にその中央に孔を形成
させた一対の硝子筒と、該硝子筒の一開口部に接着する
ベースと、前記硝子筒の孔に嵌合溶着されて、前記硝子
筒の直径Ｄ１より小さい直径Ｄ２を有すると共に内壁に
薄膜の蛍光体が塗布されている硝子細管とで構成された
ことを特徴とする蛍光ランプ。1. A pair of glass cylinders having a diameter D1 in which one opening is shrunk inward and the other opening is shrunk by a side wall, and a hole is formed in the center thereof, and the glass tube is bonded to the one opening. It is composed of a base and a glass capillary tube fitted and welded to the hole of the glass tube, having a diameter D2 smaller than the diameter D1 of the glass tube and having an inner wall coated with a thin film phosphor. Fluorescent lamp to do.
れた前記硝子筒の一開口部に翼部分を拡大したステムを
溶着したことを特徴とする蛍光ランプ。2. The fluorescent lamp according to claim 1, wherein a stem having an enlarged wing portion is welded to one opening of the glass tube adhered to the base.
型、環型またはＵ字型で形成したことを特徴とする蛍光
ランプ。3. The fluorescent lamp according to claim 1, wherein the glass thin tube is formed in a straight tube type, a ring type or a U shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1992-11326 | 1992-06-27 | ||
| KR1019920011326A KR940001248A (en) | 1992-06-27 | 1992-06-27 | Fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0660849A true JPH0660849A (en) | 1994-03-04 |
Family
ID=19335405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5013692A Pending JPH0660849A (en) | 1992-06-27 | 1993-01-29 | Fluorescent lamp |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0577275A1 (en) |
| JP (1) | JPH0660849A (en) |
| KR (1) | KR940001248A (en) |
| CN (1) | CN1085011A (en) |
| AU (1) | AU4152593A (en) |
| CA (1) | CA2094487A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007200563A (en) * | 2006-01-23 | 2007-08-09 | Harison Toshiba Lighting Corp | Dielectric barrier discharge lamp |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008077292A1 (en) * | 2006-12-22 | 2008-07-03 | Xiamen Donglin Electronic Co., Ltd | A new power-saving lamp tube |
| CN101373697A (en) * | 2007-08-22 | 2009-02-25 | 马士科技有限公司 | Novel fluorescent lamp tube |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN149856B (en) * | 1977-10-31 | 1982-05-15 | Bbc Brown Boveri & Cie | |
| JPS5699961A (en) * | 1980-01-11 | 1981-08-11 | Matsushita Electric Works Ltd | Fluorescent lamp |
| JPS56138851A (en) * | 1980-03-31 | 1981-10-29 | Mitsubishi Electric Corp | Circular fluorescent lamp |
| JPS60138838A (en) * | 1983-12-27 | 1985-07-23 | Mitsubishi Electric Corp | Fluorescent lamp |
| JPS63131458A (en) * | 1986-11-21 | 1988-06-03 | Hitachi Ltd | Metal halide lamp |
| JPH03108251A (en) * | 1989-09-22 | 1991-05-08 | Toshiba Lighting & Technol Corp | Circular fluorescent lamp |
-
1992
- 1992-06-27 KR KR1019920011326A patent/KR940001248A/en not_active Application Discontinuation
-
1993
- 1993-01-29 JP JP5013692A patent/JPH0660849A/en active Pending
- 1993-04-20 CA CA002094487A patent/CA2094487A1/en not_active Abandoned
- 1993-05-10 CN CN93105649A patent/CN1085011A/en active Pending
- 1993-06-09 EP EP93304467A patent/EP0577275A1/en not_active Withdrawn
- 1993-06-25 AU AU41525/93A patent/AU4152593A/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007200563A (en) * | 2006-01-23 | 2007-08-09 | Harison Toshiba Lighting Corp | Dielectric barrier discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1085011A (en) | 1994-04-06 |
| AU4152593A (en) | 1994-01-06 |
| EP0577275A1 (en) | 1994-01-05 |
| KR940001248A (en) | 1994-01-11 |
| CA2094487A1 (en) | 1993-12-28 |
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