TWI389164B - External electrode fluorescent lamp and apparatus utilizing the same - Google Patents

External electrode fluorescent lamp and apparatus utilizing the same Download PDF

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Publication number
TWI389164B
TWI389164B TW098122051A TW98122051A TWI389164B TW I389164 B TWI389164 B TW I389164B TW 098122051 A TW098122051 A TW 098122051A TW 98122051 A TW98122051 A TW 98122051A TW I389164 B TWI389164 B TW I389164B
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Taiwan
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light
transmitting tube
external electrode
fluorescent lamp
layer
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TW098122051A
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Chinese (zh)
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TW201009885A (en
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Satoshi Tamura
tetsuro Fuyuki
Yasuhiro Mano
Kouji Imada
Eri Matsuda
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Nec Lighting Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/044—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by a separate microwave unit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/09—Hollow cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/2806—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without electrodes in the vessel, e.g. surface discharge lamps, electrodeless discharge lamps

Description

外部電極式螢光燈及利用該螢光燈之裝置External electrode type fluorescent lamp and device using the same 【交叉參考之相關申請案】[Cross-reference related application]

本案係基於下述案件，並主張其優先權：日本專利申請案公開第2008-191276號，申請日為2008年7月24日，其全部內容在此併入以供參照。The present invention is based on the following case and claims its priority: Japanese Patent Application Publication No. 2008-191276, filed on Jan. 24, 2008, the entire disclosure of which is hereby incorporated by reference.

本發明係有關於外部電極式螢光燈及利用該螢光燈之裝置，尤關於具有暗區啟動的極佳特性、抑制汞合金的生成、達成高發光強度的外部電極式螢光燈及設備。The present invention relates to an external electrode type fluorescent lamp and an apparatus using the same, and more particularly to an external electrode type fluorescent lamp and apparatus having excellent characteristics of dark area activation, suppressing generation of amalgam, and achieving high luminous intensity. .

冷陰極螢光燈因為其優異屬性，如高發光強度、高演色性、長使用壽命、低功率消耗等，已廣泛應用於如電視、電腦等之液晶顯示器的背光、如傳真機等的讀閱光源、影印機的除像光源及用於各種顯示應用等。在該種冷陰極螢光燈中，將電壓施加至設位於以玻璃等製成之光透射管之各端附近的電極，該光透射管在其內部以氣密方式保存稀有氣體及汞，俾使稀有氣體被光電子游離化，而在光透射管中僅出現非常少量的光電子作為一次電子，而離子化的稀有氣體離子受力而撞擊電極，進而發射出二次電子，藉此產生輝光放電，而汞原子藉此受激發後輻射紫外光。接著，受到紫外光作用時，設置在光透射管內壁上的螢光材料會發射出可見光。在此種冷陰極螢光燈中，因為電極會受到稀有氣體離子等的濺擊，便使用外部電極式螢光燈，其中電極設置於光透射管之外圍表面上，以減少濺擊所造成的損害。Cold cathode fluorescent lamps have been widely used for reading backlights of liquid crystal displays such as televisions, computers, etc., such as fax machines, because of their excellent properties, such as high luminous intensity, high color rendering, long service life, and low power consumption. Light source, photo erasing machine for photocopiers and for various display applications. In such a cold cathode fluorescent lamp, a voltage is applied to an electrode provided near each end of a light transmitting tube made of glass or the like, and the light transmitting tube internally stores a rare gas and mercury in a gastight manner, The rare gas is freed by photoelectrons, and only a very small amount of photoelectrons appear as primary electrons in the light transmitting tube, and the ionized rare gas ions are forced to hit the electrode, thereby emitting secondary electrons, thereby generating glow discharge, The mercury atoms are thereby excited to emit ultraviolet light. Then, when subjected to ultraviolet light, the fluorescent material disposed on the inner wall of the light transmitting tube emits visible light. In such a cold cathode fluorescent lamp, since the electrode is splashed by a rare gas ion or the like, an external electrode type fluorescent lamp is used, in which an electrode is disposed on a peripheral surface of the light transmitting tube to reduce splashing. damage.

冷陰極螢光燈長時間置放於阻擋外部光線進入的空間(暗區)之後，會變的很難或無法啟動(點亮)，因此便有了對暗區啟動失效的改進。習知技藝中有一種利用氧化鋁(alumina)之一次電子發射屬性的放電式燈(discharge lamp)，氧化鋁微粒散佈、混合在螢光層中，或是氧化鋁微粒層形成在玻璃燈管的內面上，俾使氧化鋁曝露於放電空間中(參照日本公開專利公報第2004-95378號)，以及一種具有由氧化鋅與氧化釔之混合物所形成之氧化層的放電式燈，該氧化層係設置在發光管內圍表面與螢光材料層之間，或設置在發光管各端(參照日本公開專利公報第2007-73481號)。After the cold cathode fluorescent lamp is placed for a long time in a space (dark area) that blocks external light from entering, it becomes difficult or impossible to start (lights up), so there is an improvement in the startup failure of the dark area. In the prior art, there is a discharge lamp utilizing the primary electron emission property of alumina, which is dispersed or mixed in the phosphor layer, or a layer of alumina particles is formed in the glass tube. On the inner surface, the aluminum oxide is exposed to the discharge space (refer to Japanese Laid-Open Patent Publication No. 2004-95378), and a discharge lamp having an oxide layer formed of a mixture of zinc oxide and cerium oxide, the oxide layer It is provided between the inner surface of the arc tube and the phosphor layer, or at each end of the arc tube (refer to Japanese Laid-Open Patent Publication No. 2007-73481).

然而，在日本公開專利公報第2004-95378號所揭露的外部電極式螢光燈中，將氧化鋁微粒混合入螢光材料層中會導致發光強度顯著降低。亦即，氧化鋁的電子發射屬性非常弱，而當為了達到穩定的暗區啟動特性時，便必須增加氧化鋁的混合量。氧化鋁並非為受汞原子所發射之紫外光激發而發射螢光的螢光材料，而增加含在螢光材料層中氧化鋁的量會導致燈發光強度的降低。再者，若氧化鋁含量不會影響而降低發光強度，該含量將不會達成穩定的暗區特性。又，玻璃燈管中的汞，被混合在螢光材料層中的氧化鋁微粒吸收後，會形成的汞合金，導致發光強度維持因素劣化的負面效果。再者，雖然在一已揭露的方法中，氧化鋁微粒並非混合在螢光材料中，且氧化鋁微粒層僅設置於玻璃燈管之外部電極部分的內面上，且該處並未設置螢光材料層，因為氧化鋁的一次電子發射屬性本身相當弱，僅將氧化鋁微粒層設置於該部分上可能不會達到穩定的暗區啟動效果。However, in the external electrode type fluorescent lamp disclosed in Japanese Laid-Open Patent Publication No. 2004-95378, the mixing of the alumina fine particles into the phosphor layer causes a significant decrease in the emission intensity. That is, the electron emission property of alumina is very weak, and when it is necessary to achieve stable dark-zone start-up characteristics, it is necessary to increase the amount of alumina mixed. Alumina is not a fluorescent material that is excited by ultraviolet light emitted by mercury atoms to emit fluorescence, and increasing the amount of alumina contained in the phosphor layer causes a decrease in the luminous intensity of the lamp. Furthermore, if the alumina content is not affected and the luminescence intensity is lowered, the content will not achieve stable dark zone characteristics. Further, the mercury in the glass bulb is absorbed by the alumina fine particles mixed in the phosphor layer, and the formed amalgam causes a negative effect of deterioration of the luminous intensity maintenance factor. Furthermore, although in an exposed method, the alumina particles are not mixed in the phosphor material, and the alumina particle layer is disposed only on the inner surface of the outer electrode portion of the glass bulb, and no flue is provided there. The light material layer, because the primary electron emission property of alumina itself is rather weak, merely setting the alumina particle layer on the portion may not achieve a stable dark region activation effect.

再者，在日本公開專利公報第2007-73481號所揭露的外部電極式螢光燈中，從螢光材料發射出的螢光會被由氧化鋅與氧化釔所組成的氧化層所吸收後反射，導致燈發光強度的減弱。此外，因為由氧化鋅與氧化釔所組成的氧化層具有非常低的導電性，當電壓施加在電極之間時，因氧化層在生成處理時之條件變化之故，設置在燈之整個內圍表面上的氧化層會將兩端的外部電極連接，而此漏電流將會使放電特性更不穩定，便無法達成所欲的暗區特性。因此，為了製造具有穩定暗區特性的燈，在生成由氧化鋅與氧化釔所組成之氧化層的製程中，便需要對製造條件嚴格控管。Further, in the external electrode type fluorescent lamp disclosed in Japanese Laid-Open Patent Publication No. 2007-73481, the fluorescent light emitted from the fluorescent material is absorbed by the oxide layer composed of zinc oxide and cerium oxide. , resulting in a decrease in the luminous intensity of the lamp. In addition, since the oxide layer composed of zinc oxide and cerium oxide has a very low conductivity, when a voltage is applied between the electrodes, the entire inner circumference of the lamp is set due to the change of the conditions of the oxide layer during the formation process. The oxide layer on the surface will connect the external electrodes at both ends, and this leakage current will make the discharge characteristics more unstable, and the desired dark region characteristics will not be achieved. Therefore, in order to manufacture a lamp having stable dark zone characteristics, in the process of producing an oxide layer composed of zinc oxide and cerium oxide, it is necessary to strictly control the manufacturing conditions.

本發明之目的為，提供外部電極式螢光燈及利用該螢光燈之設備，該螢光燈利用氧化鋅，氧化鋅具有比氧化鋁微粒之一次電 子發射屬性更優異的一次電子發射屬性，藉此能達到穩定的暗區啟動特性，抑制汞合金的生成，長時間維持光發射，以及防止發光強度的降低，且其具有高可靠度並容易生產之特色。An object of the present invention is to provide an external electrode type fluorescent lamp and an apparatus using the same, wherein the fluorescent lamp utilizes zinc oxide, and the zinc oxide has a primary electric power than the aluminum oxide particles The sub-emission property is superior to the primary electron emission property, thereby achieving stable dark-zone activation characteristics, suppressing the formation of amalgam, maintaining light emission for a long period of time, and preventing reduction of luminous intensity, and having high reliability and easy production. Features.

本案發明人經努力實驗後最終發現，在光透射管中之相對外部電極之內表面上的特定區域上，設置含氧化鋅的啟動加速層，能抑制螢光材料出光的吸收及反射，抑制汞的吸收，以及防止燈發光強度的減弱。基於此等發現，該等發明人完成本發明。After intensive experiments, the inventors of the present invention finally found that a zinc oxide-containing start-up acceleration layer is disposed on a specific region on the inner surface of the light-transmitting tube relative to the external electrode, which can suppress the absorption and reflection of the light-emitting material and inhibit mercury. Absorption, as well as preventing the weakening of the luminous intensity of the lamp. Based on these findings, the inventors have completed the present invention.

亦即，本發明係關於外部電極式螢光燈，其包含：一光透射管、一螢光材料層及一外部電極，該光透射管在其內部保存有稀有氣體及汞，該螢光材料層設置於該光透射管之一內壁表面上，該外部電極設置於該光透射管之各端的一外圍表面上，其中該外部電極式螢光燈包括一含氧化鋅之啟動加速層，該啟動加速層位於該光透射管之內表面上之相對於至少一外部電極的一區域中，且該啟動加速層之靠光透射管中心側之邊緣位於距離該外部電極之靠光透射管中心側之邊緣靠光透射管中心側10 mm的位置，或位於前述位置之靠光透射管末端側。That is, the present invention relates to an external electrode type fluorescent lamp, comprising: a light transmitting tube, a fluorescent material layer and an external electrode, the light transmitting tube holding a rare gas and mercury therein, the fluorescent material a layer is disposed on an inner wall surface of the light transmission tube, the external electrode is disposed on a peripheral surface of each end of the light transmission tube, wherein the external electrode type fluorescent lamp comprises a zinc oxide-containing start acceleration layer, The activation acceleration layer is located in a region of the inner surface of the light transmission tube with respect to the at least one external electrode, and an edge of the activation acceleration layer on the center side of the light transmission tube is located at a center side of the light transmission tube from the external electrode The edge is located 10 mm from the center side of the light transmitting tube or at the end of the light transmitting tube at the aforementioned position.

再者，本發明係關於具備上述外部電極式螢光燈的設備。Furthermore, the present invention relates to an apparatus including the above external electrode type fluorescent lamp.

本發明之外部電極式螢光燈利用氧化鋅，氧化鋅之一次電子發射屬性較佳於氧化鋁微粒的一次電子發射屬性，藉此達成穩定的暗區啟動特性，此外，能抑制汞合金的生成，長時間維持光發射，防止發光強度的減弱，並具有高可靠度，且容易生產。The external electrode type fluorescent lamp of the present invention utilizes zinc oxide, and the primary electron emission property of zinc oxide is better than the primary electron emission property of the alumina fine particles, thereby achieving stable dark-zone activation characteristics and, in addition, suppressing formation of amalgam. It maintains light emission for a long time, prevents the light intensity from weakening, has high reliability, and is easy to produce.

本發明之外部電極式螢光燈包含：光透射管，在其內部保存有稀有氣體及汞G；螢光材料層，設置在光透射管之內壁表面上；及外部電極，設置在光透射管之各端的外圍表面上，其中，該外部電極式螢光燈包括含有氧化鋅的啟動加速層，該啟動加速層位於光透射管之內表面上之相對於至少一外部電極的區域中，該啟動加速層之靠光透射管中心側之邊緣位於光透射管中心側距離外部電極之靠光透射管中心側之邊緣10mm之位置，或位於前述位置之靠光透射管末端側。The external electrode type fluorescent lamp of the present invention comprises: a light transmitting tube in which a rare gas and mercury G are stored; a fluorescent material layer disposed on an inner wall surface of the light transmitting tube; and an external electrode disposed in the light transmitting a peripheral surface of each end of the tube, wherein the external electrode type fluorescent lamp comprises a startup acceleration layer containing zinc oxide, the activation acceleration layer being located in an area on the inner surface of the light transmission tube with respect to the at least one external electrode, The edge of the center of the light-transmitting tube that activates the acceleration layer is located 10 mm from the edge of the center of the light-transmitting tube on the center side of the light-transmitting tube, or at the end of the light-transmitting tube at the aforementioned position.

用於本發明之外部電極式螢光燈的光透射管，可以是具有從螢光材料發射出之高螢光透射率的任何材料，該材料可為玻璃，如矽酸鹽玻璃、硼矽酸鹽玻璃、鋅硼矽酸鹽玻璃、鉛玻璃、鈉玻璃等。詳細而言，適當的材料包括鈉玻璃、硼矽酸鹽玻璃等，且其組成中，如鈉、鉀等之鹼性成分不超過10%質量比。其形狀可以是直管類型、彎曲類型或其他類型之其中一者。光透射管的直徑，如外直徑可以是2至5mm。雖然依據使用目的不同而可適當選擇光透射管的厚度，若接上述光透射管的直徑，其厚度較佳為0.2至0.7mm。光透射管的兩端皆為氣密式密封，且其管長可以是如500mm至1500mm。The light transmitting tube used in the external electrode type fluorescent lamp of the present invention may be any material having a high fluorescence transmittance emitted from a fluorescent material, and the material may be glass such as silicate glass or borosilicate glass. , zinc borosilicate glass, lead glass, soda glass, and the like. In detail, suitable materials include soda glass, borosilicate glass, and the like, and in the composition, the alkaline component such as sodium, potassium, or the like does not exceed 10% by mass. The shape may be one of a straight tube type, a curved type, or another type. The diameter of the light transmitting tube, such as the outer diameter, may be 2 to 5 mm. Although the thickness of the light transmitting tube can be appropriately selected depending on the purpose of use, the thickness of the light transmitting tube is preferably 0.2 to 0.7 mm. Both ends of the light transmission tube are hermetically sealed, and the length of the tube can be, for example, 500 mm to 1500 mm.

螢光材料層係設置在光透射管之幾乎整個內壁表面上。螢光材料層所含之螢光材料，係由汞原子輻射之紫外光所激發而發射出可見光。此螢光材料的選擇，係使其依據使用目的而發射出所欲的色光；例如，可使用鹵磷酸鹽螢光材料、稀土族螢光材料等。亦可使用上述材料的適當組合而發射白光。詳細而言，用以發射白光之螢光材料的可能組合包括下列之組合：紅色螢光材料Y2 O3 :Eu；綠色螢光材料LaPO4 :Ce,Tb；及藍色螢光材料BaMgAl10 O17 :Eu。螢光材料的厚度較佳為不低於15μm且不超過25μm。雖然可將螢光材料層設置到相對於外部電極的區域中，但相對區域較佳為在光透射管之軸向方向10mm之內。The phosphor material layer is disposed on almost the entire inner wall surface of the light transmitting tube. The phosphor material contained in the phosphor layer is excited by ultraviolet light irradiated by mercury atoms to emit visible light. The fluorescent material is selected such that it emits a desired color light depending on the purpose of use; for example, a halophosphate fluorescent material, a rare earth fluorescent material, or the like can be used. White light can also be emitted using a suitable combination of the above materials. In detail, possible combinations of fluorescent materials for emitting white light include the following combinations: red fluorescent material Y 2 O 3 :Eu; green fluorescent material LaPO 4 :Ce,Tb; and blue fluorescent material BaMgAl 10 O 17 :Eu. The thickness of the fluorescent material is preferably not less than 15 μm and not more than 25 μm. Although the phosphor layer may be disposed in a region relative to the external electrode, the opposing region is preferably within 10 mm of the axial direction of the light transmitting tube.

將汞及稀有氣體通入光透射管之中，其中，汞經由放電效應而產生紫外光，而稀有氣體係適當選自於氬、氙、氖等氣體。在光透射管中產生之放電電子會撞擊汞原子，而汞原子產生紫外光，該紫外光係包括具有激發螢光材料之253.7nm的波長的紫外光。通入光透射管之汞的量較佳為開燈時汞的氣態壓力為如1至10Pa的量。通入光透射管之稀有氣體的量較佳為開燈時稀有氣體的壓力為如2000Pa至6000Pa的量。Mercury and a rare gas are introduced into the light transmission tube, wherein the mercury generates ultraviolet light through a discharge effect, and the rare gas system is suitably selected from gases such as argon, helium, neon or the like. The discharge electrons generated in the light transmission tube collide with mercury atoms, and the mercury atoms generate ultraviolet light, which includes ultraviolet light having a wavelength of 253.7 nm of the excitation phosphor material. The amount of mercury introduced into the light transmitting tube is preferably such that the gaseous pressure of mercury when the lamp is turned on is, for example, 1 to 10 Pa. The amount of the rare gas introduced into the light transmitting tube is preferably such that the pressure of the rare gas when the lamp is turned on is, for example, 2000 Pa to 6000 Pa.

分別設置在光透射管之外圍表面兩端的外部電極係由如鐵或如SUS之鐵合金所形成。藉由將鐵或鐵合金纏繞在光透射管上，可形成外部電極，且能使用焊料來加強電極與光透射管之間的黏著性。The external electrodes respectively disposed at both ends of the peripheral surface of the light transmitting tube are formed of an iron alloy such as iron or SUS. An external electrode can be formed by winding iron or an iron alloy on the light transmitting tube, and solder can be used to enhance the adhesion between the electrode and the light transmitting tube.

含鋅之啟動加速層係設置在前述光透射管的內表面上，且位於相對於至少一外部電極的區域中。啟動加速層可相對於在兩端的外部電極而成對設置，或相對於一個電極而單一設置。氧化鋅具有優異的電子發射能力，其持續地發射電子，因此能將絕佳的暗區啟動特性賦予外部電極式螢光燈，藉此即使外部電極式螢光燈位於暗處而長時間未施加電壓時，在將電壓施加至電極後，短時間內便能開始放電。含有氧化鋅之啟動加速層較佳地具有平均粒徑不超過100nm的一次粒子，而因藉由氧化鋅粒子的表面面積增加，可加速電子的發射。A zinc-containing start-up acceleration layer is disposed on the inner surface of the aforementioned light-transmitting tube and is located in a region with respect to at least one external electrode. The startup acceleration layer may be disposed in pairs with respect to external electrodes at both ends, or may be singularly disposed with respect to one electrode. Zinc oxide has excellent electron emission capability, and it continuously emits electrons, so that excellent dark-zone activation characteristics can be imparted to the external electrode type fluorescent lamp, whereby the external electrode type fluorescent lamp is not applied for a long time even if it is located in a dark place. At the time of voltage, after applying a voltage to the electrode, the discharge can be started in a short time. The promoter-accelerating layer containing zinc oxide preferably has primary particles having an average particle diameter of not more than 100 nm, and electron emission can be accelerated by an increase in the surface area of the zinc oxide particles.

在此，平均粒徑的值可藉由觀察掃描式電子顯微鏡(SEM)或透射式電子顯微鏡(TEM)而獲得。Here, the value of the average particle diameter can be obtained by observing a scanning electron microscope (SEM) or a transmission electron microscope (TEM).

雖然上述之啟動加速層可僅由氧化鋅所構成，其更可含有具有電子發射能力的一或更多個材料，如氧化釔、氧化鋁、氧化鈦、氧化鎂及氧化錫。此等材料能增進外部電極式螢光燈的啟動特性。此等材料的組成較佳為氧化鋅具有在10%至100%之範圍中的重量比。此外，啟動加速層亦可含有在不會減損氧化鋅與上述具有電子發射能力之材料的功能之範圍內的螢光材料。詳細而言，螢光材料可以用上述螢光材料層中所用之螢光材料作為範例。Although the above-described starting acceleration layer may be composed only of zinc oxide, it may further contain one or more materials having electron-emitting ability such as cerium oxide, aluminum oxide, titanium oxide, magnesium oxide, and tin oxide. These materials enhance the starting characteristics of external electrode fluorescent lamps. The composition of these materials is preferably such that the zinc oxide has a weight ratio in the range of 10% to 100%. Further, the start-up acceleration layer may also contain a fluorescent material within a range that does not detract from the function of the zinc oxide and the above-described material having electron-emitting ability. In detail, the fluorescent material may be exemplified by the fluorescent material used in the above-mentioned layer of the fluorescent material.

上述啟動加速層係設置於光透射管之內表面上之相對至少一外部電極的區域中。雖然其可以在光透射管之內表面上之相對外部電極處設置成非環狀形式，其較佳為在光透射管之內表面上之相對外部電極處設置成環形形式。如圖1之立體圖所示，啟動加速層6較佳地在光透射管2之內表面上之相對外部電極3處設置成環狀形式。啟動加速層之靠光透射管中心側的邊緣係位於距離外部電極之靠光透射管中心側之邊緣靠光透射管中心側10mm的位置，或位於前述位置之靠光透射管末端側。因為啟動加速層之靠光透射管中心側的邊緣位於距離外部電極之靠光透射管中心側之邊緣靠光透射管中心側10 mm的位置，或位於前述位置之靠光透射管末端側，便有可能防止阻礙紫外光對螢光材料的激發，藉此防止燈發光強度降低。雖然啟動加速層之靠光透射管末端側的邊緣可以位於外部電極之靠光透射管末端側之邊緣的靠光透射管末端側，其較佳位於距離外部電極之靠光透射管中心側之邊緣之靠光透射管末端側10 mm的位置，或位於前述位置之靠光透射管中心側，因為有可能抑制汞被啟動加速層吸收後形成汞合金。不論光透射管的形狀及尺寸為何，啟動加速層較佳具有在光透射管之軸向方向上20 mm之內的寬度。若設置在上述區域中，啟動加速層可包括與螢光材料層形成疊層的部分。依據所使用氧化鋅粒子的平均粒徑，以及光透射管的材料等，可適當選擇啟動加速層的厚度。The activation acceleration layer is disposed in a region of the inner surface of the light transmission tube opposite to the at least one external electrode. Although it may be provided in an acyclic form at the opposite outer electrode on the inner surface of the light transmitting tube, it is preferably provided in an annular form at the opposite outer electrode on the inner surface of the light transmitting tube. As shown in the perspective view of Fig. 1, the activation accelerating layer 6 is preferably disposed in an annular form at the opposite outer electrode 3 on the inner surface of the light transmitting tube 2. The edge of the center of the light-transmitting tube of the starting acceleration layer is located 10 mm from the center side of the light-transmitting tube at the edge of the light-transmitting tube on the center side of the light-transmitting tube, or at the end side of the light-transmitting tube at the aforementioned position. Since the edge of the center of the light-transmitting tube of the starting acceleration layer is located 10 mm from the center side of the light-transmitting tube at the edge of the light-transmitting tube on the center side of the light-transmitting tube, or at the end of the light-transmitting tube at the aforementioned position, It is possible to prevent the ultraviolet light from being excited by the fluorescent material, thereby preventing the lamp from being reduced in luminous intensity. Although the edge of the end portion of the light-transmitting tube that activates the acceleration layer may be located on the end side of the light-transmitting tube at the edge of the end portion of the external electrode of the light-transmitting tube, it is preferably located at the edge of the center side of the light-transmitting tube from the external electrode. It is located 10 mm from the end side of the light transmitting tube, or at the center side of the light transmitting tube at the aforementioned position, because it is possible to suppress the formation of the amalgam after the mercury is absorbed by the starting acceleration layer. Regardless of the shape and size of the light transmitting tube, the starting acceleration layer preferably has a width within 20 mm in the axial direction of the light transmitting tube. If disposed in the above region, the startup acceleration layer may include a portion laminated with the phosphor material layer. The thickness of the starting acceleration layer can be appropriately selected depending on the average particle diameter of the zinc oxide particles to be used, the material of the light transmitting tube, and the like.

此啟動加速層能藉由製備塗佈液體而形成，在該塗佈液體中，氧化鋅具有上述平均粒徑一次粒子，且其係散佈於如水、異丙醇等的溶劑中，且藉由使用此液體，在光透射管之內表面的期望區域中，藉由浸漬或塗佈等方法，形成塗佈膜，並在此之後適當烘乾及加熱塗佈膜。The start-up acceleration layer can be formed by preparing a coating liquid in which zinc oxide has the above-mentioned average particle diameter primary particles, and is dispersed in a solvent such as water, isopropyl alcohol or the like, and is used by using This liquid is formed into a coating film by a method such as dipping or coating in a desired region of the inner surface of the light transmitting tube, and thereafter, the coating film is appropriately dried and heated.

本發明之外部電極式螢光燈可依需求在螢光材料層與光透射管之間設有保護層及其類似物，以抑制從汞原子所輻射出之紫外光與其他波到達光透射管外部的洩露，或抑制因汞或其他化學物所造成光透射管的降解。The external electrode type fluorescent lamp of the present invention can provide a protective layer and the like between the fluorescent material layer and the light transmitting tube as needed to suppress the ultraviolet light and other waves radiated from the mercury atoms from reaching the light transmitting tube. External leakage, or inhibition of degradation of light transmission tubes caused by mercury or other chemicals.

製造上述外部電極式螢光燈的方法包括將螢光材料層形成在光透射管的內壁上。形成螢光材料層包括製備流體散佈液，其中上述螢光材料散佈在溶劑中，並包括浸漬塗佈，以及隨後在以玻璃或其他類似物所製成之具有預定形狀的光透射管中的內壁表面上，將散佈液乾燥成具有預定厚度，以形成具有上述厚度的螢光材料層。在此之後，藉由浸漬手段或其相似手段，將上述啟動加速層形成在光透射管的內表面上。在此之後，將預定量的汞及稀有氣體通入光透射管，並將光透射管的兩端密封。將鐵合金等的 薄片纏繞在光透射管各端的外圍表面上，並將焊料填入光透射管與纏繞的薄片之間，使其二者緊密接觸而形成外部電極。A method of manufacturing the above external electrode type fluorescent lamp includes forming a layer of a fluorescent material on an inner wall of a light transmitting tube. Forming the layer of phosphor material includes preparing a fluid dispersion liquid, wherein the above-mentioned phosphor material is dispersed in a solvent, and includes dip coating, and then in a light transmitting tube having a predetermined shape made of glass or the like. On the wall surface, the dispersion liquid is dried to have a predetermined thickness to form a layer of the phosphor material having the above thickness. Thereafter, the above-described start-up acceleration layer is formed on the inner surface of the light-transmitting tube by means of dipping means or the like. After that, a predetermined amount of mercury and a rare gas are introduced into the light transmitting tube, and both ends of the light transmitting tube are sealed. Ferroalloy The sheet is wound around the peripheral surface of each end of the light transmitting tube, and solder is filled between the light transmitting tube and the wound sheet so that the two are in close contact to form an external electrode.

本發明之外部電極式螢光燈的範例係繪示於圖2至圖6。圖2所示之外部電極式螢光燈1配置為：由鈉玻璃、硼矽酸鹽玻璃及其他類似玻璃製成的光透射管2，其兩端以氣密方式密封；稀有氣體及汞G保存在光透射管的內部；以及，內部壓力減為約佔大氣壓力數成的壓力。在幾乎整個長度的光透射管2的內壁表面上，設置螢光材料層5。外部電極3設置在光透射管2之軸向方向的各端。啟動加速層6係設置在光透射管之相對外部電極的內圍表面上。啟動加速層6係設置在螢光材料層的末端，且啟動加速層6之靠光透射管中心側的邊緣6a係位於距離外部電極3之靠光透射管中心側之邊緣3a 10 mm之靠光透射管中心側的位置3a’，或位於前述位置之靠光透射管末端側。啟動加速層6之靠光透射管末端側的邊緣6b係位於距離外部電極之靠光透射管中心側之邊緣3a 10mm之靠光透射管末端側的位置3b’，或位於前述位置之靠光透射管中心側。An example of the external electrode type fluorescent lamp of the present invention is shown in FIGS. 2 to 6. The external electrode type fluorescent lamp 1 shown in Fig. 2 is configured as a light transmission tube 2 made of soda glass, borosilicate glass and the like, which are sealed at both ends in a gastight manner; rare gas and mercury G It is stored inside the light transmission tube; and the internal pressure is reduced to a pressure that is about several times the atmospheric pressure. On the inner wall surface of the light transmission tube 2 of almost the entire length, a phosphor material layer 5 is provided. The external electrodes 3 are disposed at respective ends of the light transmitting tube 2 in the axial direction. The start acceleration layer 6 is disposed on the inner peripheral surface of the opposite outer electrode of the light transmitting tube. The start-up acceleration layer 6 is disposed at the end of the phosphor layer, and the edge 6a of the start-up accelerating layer 6 on the center side of the light-transmitting tube is located at a distance of 10 mm from the edge 3a of the outer electrode 3 on the center side of the light-transmitting tube. The position 3a' on the center side of the transmission tube or the end of the light transmission tube at the aforementioned position. The edge 6b of the start-up acceleration layer 6 on the end side of the light-transmitting tube is located at a position 3b' from the edge 3a of the light-transmitting tube on the center side of the light-transmitting tube on the end side of the light-transmitting tube, or at the aforementioned position. Tube center side.

圖3中欲設置在外部電極式螢光燈11中的啟動加速層61係設置在螢光材料層及光透射管的內壁表面上，且啟動加速層61之靠光透射管中心側的邊緣61a係位於距離外部電極3之靠光透射管中心側之邊緣3a 10mm之靠光透射管中心側的位置3a’(示於圖2)，或位於前述位置的靠光透射管末端側；而啟動加速層61之靠光透射管末端側的邊緣61b係位於距離外部電極3之靠光透射管中心側之邊緣3a 10 mm之靠光透射管末端側的位置3b’(示於圖2)，或位於前述位置的靠光透射管中心側。在圖3中，與圖2相似的元件符號，代表與圖2所示之外部電極式螢光燈1相似的元件。The startup acceleration layer 61 to be disposed in the external electrode type fluorescent lamp 11 in Fig. 3 is disposed on the inner wall surface of the phosphor layer and the light transmission tube, and activates the edge of the acceleration layer 61 on the center side of the light transmission tube. 61a is located at a position 3a' (shown in FIG. 2) on the center side of the light transmission tube 10 mm from the edge 3a of the outer side of the light transmitting tube on the center side of the light transmitting tube, or at the end side of the light transmitting tube at the aforementioned position; The edge 61b of the accelerating layer 61 on the end side of the light transmitting tube is located at a position 3b' (shown in FIG. 2) on the end side of the light transmitting tube from the edge 3a of the outer electrode 3 on the center side of the light transmitting tube, or 10 mm (or FIG. 2), or Located at the center of the light transmission tube at the aforementioned position. In Fig. 3, the same reference numerals as in Fig. 2 denote elements similar to those of the external electrode type fluorescent lamp 1 shown in Fig. 2.

圖4中欲設置在外部電極式螢光燈12中的啟動加速層62係位於光透射管的內壁表面上，且啟動加速層62之靠光透射管中心側的邊緣62a係位於距離外部電極3之靠光透射管中心側之邊緣3a 10 mm之靠光透射管中心側的位置3a’(示於圖2)，或位於前述位置的靠光透射管末端側，而啟動加速層62之靠光透射管末端側的邊緣62b係位於距離外部電極3之靠光透射管中心側之邊緣3a 10mm之靠光透射管末端側的位置3b’(示於圖2)，或位於前述位置的靠光透射管中心側。在圖4中，與圖2相似的元件符號，代表與圖2所示之外部電極式螢光燈1相似的元件。The startup acceleration layer 62 to be disposed in the external electrode type fluorescent lamp 12 in Fig. 4 is located on the inner wall surface of the light transmission tube, and the edge 62a of the activation acceleration layer 62 on the center side of the light transmission tube is located at a distance from the external electrode. 3 is located on the center side of the light transmission tube 3a 10 mm by the position 3a' on the center side of the light transmission tube (shown in FIG. 2), or on the end side of the light transmission tube at the aforementioned position, and the activation layer 62 is activated. The edge 62b on the end side of the light transmitting tube is located at a position 3b' (shown in Fig. 2) on the end side of the light transmitting tube 10 mm from the edge 3a of the outer side of the light transmitting tube on the center side of the light transmitting tube, or the light at the aforementioned position The center side of the transmission tube. In FIG. 4, the same reference numerals as in FIG. 2 denote elements similar to those of the external electrode type fluorescent lamp 1 shown in FIG. 2.

圖5中欲設置在外部電極式螢光燈13中的啟動加速層63係位於光透射管的內壁表面上，且螢光材料層係在一部分的啟動加速層上與其形成疊層。啟動加速層63之靠光透射管中心側的邊緣63a係位於距離外部電極3之靠光透射管中心側之邊緣3a 10mm之靠光透射管中心側的位置3a’(示於圖2)，或位於前述位置的靠光透射管末端側，而啟動加速層63之靠光透射管末端側的邊緣63b係位於距離外部電極3之靠光透射管中心側之邊緣3a 10mm之靠光透射管末端側的位置3b’(示於圖2)，或位於前述位置的靠光透射管中心側。在圖5中，與圖2相似的元件符號，代表與圖2所示之外部電極式螢光燈1相似的元件。The start-up acceleration layer 63 to be disposed in the external electrode type fluorescent lamp 13 in Fig. 5 is located on the inner wall surface of the light-transmitting tube, and the phosphor material layer is laminated on a part of the start-up acceleration layer. The edge 63a of the starting acceleration layer 63 on the center side of the light transmitting tube is located at a position 3a' (shown in FIG. 2) on the center side of the light transmitting tube 10 mm from the edge 3a of the outer side of the light transmitting tube on the center side of the light transmitting tube, or The edge 63b of the light-transmitting tube end side of the start-up accelerating layer 63 is located at the end position of the light transmitting tube from the edge 3a of the outer side of the light transmitting tube. Position 3b' (shown in Figure 2), or at the center of the light transmitting tube at the aforementioned position. In Fig. 5, the same reference numerals as in Fig. 2 denote elements similar to those of the external electrode type fluorescent lamp 1 shown in Fig. 2.

圖6中欲設置在外部電極式螢光燈14中的啟動加速層64係位於光透射管的內壁表面上，且螢光材料含在上述的層中。啟動加速層64之靠光透射管中心側的邊緣64a係位於距離外部電極3之靠光透射管中心側之邊緣3a 10mm之靠光透射管中心側的位置3a’(示於圖2)，或位於前述位置的靠光透射管末端側，而啟動加速層64之靠光透射管末端側的邊緣64b係位於距離外部電極3之靠光透射管中心側之邊緣3a 10mm之靠光透射管末端側的位置3b’(示於圖2)，或位於前述位置的靠光透射管中心側。在圖6中，，與圖2相似的元件符號，代表與圖2所示之外部電極式螢光燈1相似的元件。The start acceleration layer 64 to be disposed in the external electrode type fluorescent lamp 14 in Fig. 6 is located on the inner wall surface of the light transmission tube, and the fluorescent material is contained in the above layer. The edge 64a of the start-up acceleration layer 64 on the center side of the light-transmitting tube is located at a position 3a' (shown in FIG. 2) from the edge 3a of the outer electrode 3 on the center side of the light-transmitting tube on the center side of the light-transmitting tube (see FIG. 2), or The edge 64b of the light-transmitting tube end side of the starting acceleration layer 64 is located at the end position of the light transmitting tube on the end side of the light transmitting tube on the center side of the light transmitting tube. Position 3b' (shown in Figure 2), or at the center of the light transmitting tube at the aforementioned position. In Fig. 6, the same reference numerals as in Fig. 2 denote elements similar to those of the external electrode type fluorescent lamp 1 shown in Fig. 2.

本發明之設備具有上述外部電極式螢光燈，其特定範例為使用於電視機、電腦、行動電話、傳真機、影印機等中的液晶顯示裝置。The apparatus of the present invention has the above-described external electrode type fluorescent lamp, and a specific example thereof is a liquid crystal display device used in a television set, a computer, a mobile phone, a facsimile machine, a photocopier or the like.

範例example

茲在此以數個範例來描述本發明。The invention is described herein in terms of several examples.

將螢光材料，連同硼矽酸鹽玻璃結合劑及硝化纖維素，散佈在醋酸丁酯中，俾使其具有濃度為60%重量比，而製備螢光材料塗佈液體。將鈉玻璃管的內壁表面浸漬在合成的塗佈液體中；鈉玻璃管的外直徑為4.0mm，厚度為0.5mm，長度為1000mm，且具有重量比不超過10%的鹼類成分濃度。之後，將乾空氣運送穿過該處，以乾燥而產生厚度為20μm的螢光材料層。The fluorescent material, together with the borosilicate glass binder and nitrocellulose, was dispersed in butyl acetate to have a concentration of 60% by weight to prepare a fluorescent material coating liquid. The inner wall surface of the soda glass tube was immersed in a synthetic coating liquid; the soda glass tube had an outer diameter of 4.0 mm, a thickness of 0.5 mm, a length of 1000 mm, and a concentration of an alkali component having a weight ratio of not more than 10%. Thereafter, dry air was transported therethrough to dry to produce a layer of phosphor material having a thickness of 20 μm.

將具有一次粒子平均粒徑約為30nm的氧化鋅散佈在異丙醇(IPA)中，以製備具有氧化鋅濃度重量比為5%的塗佈液體。Zinc oxide having a primary particle average particle diameter of about 30 nm was dispersed in isopropyl alcohol (IPA) to prepare a coating liquid having a zinc oxide concentration of 5% by weight.

藉使用合成的塗佈液體，便將如圖3所示具有寬度為15mm、厚度約為1μm的啟動加速層製造在鈉玻璃管一端的內圍表面上，其中螢光材料層已先被製造在鈉玻璃管中。By using a synthetic coating liquid, a starting acceleration layer having a width of 15 mm and a thickness of about 1 μm as shown in FIG. 3 was fabricated on the inner peripheral surface of one end of the soda glass tube, wherein the phosphor layer was first fabricated. In a soda glass tube.

在將鈉玻璃管鍛燒而使硝化纖維素熱解之後，將預定量的汞及氬通入鈉玻璃管中，並將鈉玻離管的兩端密封。將SUS的薄膜纏繞在鈉玻璃管各端的外圍表面上，並用焊料將其固定而形成外部電極。After calcining the soda glass tube to pyrolyze the nitrocellulose, a predetermined amount of mercury and argon are introduced into the soda glass tube, and both ends of the sodium glass tube are sealed. A film of SUS was wound around the peripheral surface of each end of the soda glass tube, and fixed with solder to form an external electrode.

如下所示，對所形成之外部電極式螢光燈進行暗區啟動特性的量測。準備30個外部電極式螢光燈，將其置放於黑暗環境中72小時，之後，施加7.0mA的管中電流，則發現30個外部電極式螢光燈皆在100毫秒內啟動。The measurement of the dark-field activation characteristics of the formed external electrode type fluorescent lamp was carried out as follows. Thirty external electrode type fluorescent lamps were prepared and placed in a dark environment for 72 hours. Thereafter, a current of 7.0 mA was applied, and it was found that 30 external electrode type fluorescent lamps were activated within 100 milliseconds.

除了不設置啟動加速層之外，製造與前述範例相同之外部電極式螢光燈，並將其以相同方式測量暗區啟動特性，而發現其中12個製備的外部電極式螢光燈在100毫秒內啟動。因此，顯然地，本發明之外部電極式螢光燈的暗區特性較佳。Except that the startup acceleration layer was not provided, the external electrode type fluorescent lamp was manufactured in the same manner as the foregoing example, and the dark area activation characteristics were measured in the same manner, and 12 external electrode type fluorescent lamps were found to be 100 milliseconds. Start inside. Therefore, it is apparent that the dark spot characteristics of the external electrode type fluorescent lamp of the present invention are preferable.

1、11、12、13、14‧‧‧外部電極式螢光燈1,11,12,13,14‧‧‧External electrode fluorescent lamp

2‧‧‧光透射管2‧‧‧Light transmission tube

3‧‧‧外部電極3‧‧‧External electrode

3a‧‧‧外部電極之靠光透射管中心側之邊緣3a‧‧‧The edge of the outer electrode against the center of the light transmission tube

3a’‧‧‧距離外部電極之靠光透射管中心側之邊緣靠光透射管中心側3a'‧‧‧ from the edge of the center side of the light transmitting tube from the outer electrode by the center side of the light transmitting tube

10 mm的位置10 mm position

3b’‧‧‧距離外部電極之靠光透射管中心側之邊緣之靠光透射管末端側10 mm的位置3b'‧‧‧10 mm from the edge of the center side of the light transmitting tube to the outer side of the light transmitting tube by 10 mm from the end side of the light transmitting tube

5‧‧‧螢光材料層5‧‧‧Fluorescent material layer

6、61、62、63、64‧‧‧啟動加速層6, 61, 62, 63, 64‧‧‧ Start the acceleration layer

6a、61a、62a、63a、64a‧‧‧啟動加速層之靠光透射管中心側之邊緣6a, 61a, 62a, 63a, 64a‧‧‧ start the edge of the acceleration layer on the center side of the light transmission tube

6b、61b、62b、63b、64b‧‧‧啟動加速層之靠光透射管末端側之邊緣6b, 61b, 62b, 63b, 64b‧‧‧ start the edge of the accelerating layer on the end side of the light transmitting tube

G‧‧‧稀有氣體及汞G‧‧‧Rare gases and mercury

圖1係繪示本發明之外部電極式螢光燈之範例的部分結構示意圖。1 is a partial structural schematic view showing an example of an external electrode type fluorescent lamp of the present invention.

圖2係繪示本發明之外部電極式螢光燈之範例的剖面示意圖。2 is a schematic cross-sectional view showing an example of an external electrode type fluorescent lamp of the present invention.

圖3係繪示本發明之外部電極式螢光燈之範例的剖面示意圖。3 is a schematic cross-sectional view showing an example of an external electrode type fluorescent lamp of the present invention.

圖4係繪示本發明之外部電極式螢光燈之範例的剖面示意圖。4 is a schematic cross-sectional view showing an example of an external electrode type fluorescent lamp of the present invention.

圖5係繪示本發明之外部電極式螢光燈之範例的剖面示意圖。Fig. 5 is a schematic cross-sectional view showing an example of an external electrode type fluorescent lamp of the present invention.

圖6係繪示本發明之外部電極式螢光燈之範例的剖面示意圖。Fig. 6 is a schematic cross-sectional view showing an example of an external electrode type fluorescent lamp of the present invention.

2．．．光透射管2. . . Light transmission tube

3．．．外部電極3. . . External electrode

6．．．啟動加速層6. . . Start acceleration layer

Claims (6)

一種外部電極式螢光燈，其包含一光透射管、一螢光材料層及一外部電極，該光透射管在其內部保存有稀有氣體及汞，該螢光材料層設置於該光透射管之一內壁表面上，該外部電極設置於該光透射管之各端的一外圍表面上，其中：該外部電極式螢光燈包括一含氧化鋅之啟動加速層，該啟動加速層位於該光透射管之內表面上之相對於至少一外部電極的一區域中，且該啟動加速層之靠光透射管中心側之邊緣位於距離該外部電極之靠光透射管中心側之邊緣靠光透射管中心側10 mm的位置，或位於前述位置之靠光透射管末端側。 An external electrode type fluorescent lamp comprising a light transmitting tube, a fluorescent material layer and an external electrode, wherein the light transmitting tube has a rare gas and mercury stored therein, and the fluorescent material layer is disposed on the light transmitting tube On one of the inner wall surfaces, the external electrode is disposed on a peripheral surface of each end of the light transmitting tube, wherein: the external electrode type fluorescent lamp comprises a zinc oxide-containing starting acceleration layer, and the starting acceleration layer is located at the light a region of the inner surface of the transmissive tube opposite to the at least one outer electrode, and an edge of the center of the light-transmitting tube of the actuating accelerating layer is located at an edge of the outer side of the light-transmitting tube from the outer side of the light-transmitting tube The center side is 10 mm or at the end of the light transmitting tube at the aforementioned position. 如申請專利範圍第1項之外部電極式螢光燈，其中，該啟動加速層之靠光透射管末端側之邊緣位於距離該外部電極之靠光透射管中心側之邊緣之靠光透射管末端側10 mm的位置，或位於前述位置之靠光透射管中心側。 The external electrode type fluorescent lamp of claim 1, wherein an edge of the end of the light-transmitting tube of the starting acceleration layer is located at an end of the light-transmitting tube from an edge of the outer electrode on the center side of the light-transmitting tube. Position 10 mm on the side, or at the center of the light transmission tube at the aforementioned position. 如申請專利範圍第1項之外部電極式螢光燈，其中，該啟動加速層含有氧化釔、氧化鋁、氧化鈦、氧化鎂及氧化錫之一或更多者。 The external electrode type fluorescent lamp of claim 1, wherein the start acceleration layer contains one or more of cerium oxide, aluminum oxide, titanium oxide, magnesium oxide, and tin oxide. 如申請專利範圍第1項之外部電極式螢光燈，其中，該啟動加速層具有一部分，該部分係以該螢光材料層形成疊層，或由一混合物組成，該混合物為構成該螢光材料層之材料及構成該啟動加速層之材料所組成。 The external electrode type fluorescent lamp of claim 1, wherein the activation accelerating layer has a portion which is formed by laminating the phosphor material layer or consists of a mixture which constitutes the fluorescent light. The material of the material layer and the material constituting the starting acceleration layer. 如申請專利範圍第1項之外部電極式螢光燈，其中，該氧化鋅具有一次粒子，該一次粒子之平均粒徑不超過100 nm。 The external electrode type fluorescent lamp of claim 1, wherein the zinc oxide has primary particles, and the primary particles have an average particle diameter of not more than 100 nm. 一種裝設有申請專利範圍第1至6項中任一項之外部電極式螢光燈的設備。 An apparatus equipped with an external electrode type fluorescent lamp of any one of claims 1 to 6.
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