1^22999 九、發明說明： 【發明所屬之技術領域】 本發明係關於_種料驗，制是指—翻用碳膜 做為電子場魏H以發出電子撞擊螢光塗層以產生紫外光 的擦。1^22999 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to the inspection of a material, which means that the carbon film is turned over as an electron field Wei H to emit an electron impact fluorescent coating to generate ultraviolet light. Rub.
【先前技術】 隨著全球工業化所帶來經濟榮景，人類的生活盥上一 世紀相比較，明顯獲得許多改善。然而，在享受工^化所 帶來便利性的同時，-些對環境改變敏銳的人仕開始憂心 因工業化所帶來環境的破壞，而結合政府單位及工程研發 人員來尋求解決方法，以防範環境變得更壞。[Prior Art] With the economic prosperity brought about by global industrialization, human life has clearly improved many times compared with the first century. However, while enjoying the convenience brought about by the work, some people who are sensitive to environmental changes are worried about the environmental damage caused by industrialization, and combined with government units and engineering researchers to find solutions to prevent The environment is getting worse.
以目前照明光源而言，絕大部分的照明設備中都含有 汞，因其在發光過程中必須使用汞蒸汽作為放電的介質， 且目前並無適合的替代品可供使用；而產業界仍存有其他 多種含高濃度汞之照明光源(燈管、燈泡），如：紫外線(uv) 燈具。UV燈具在電子產業製程中佔有極重要的角色，不 論在製作積體電路、印刷電路板、光電元件、發光二極體、 雷射二極體、光檢測器、太陽電池以及液晶顯示器等相關 黃光微影步驟中的曝光或加熱烘乾製程中，均會使用UV 燈具。 因此產業界會定期大量產生汰換的廢棄高濃度汞燈， 5 由於回收再利用技術帛未成熟，故仍未公告為應回收廢棄 物^而此將成树境污染峨憂。因此，為聽造成環境 染，故許多人投崎縣色酬設備，以使我們能擁有 更好的環境，並減少污染的程度。 【發明内容】 θ本發明之目的在於提供一種無汞之冷電子紫外線燈， 提供-綠色照明n具’用以保護環境，以減少污染。 本發明之另一目的在於提供一可殺菌之冷電子紫外線 燈’在發光燈管測塗佈一層二氧化鈦，藉著紫外線照射二 氧化鈦產生之氫氧自由基，以達到殺菌之功效。 本發明揭露一種冷電子紫外線燈，包含：一石英燈管， -陰極、-陽極與一金屬M。其中，自極係為錄基底與其 上之碳膜組成；陽極為一導電層及其上的螢光塗層所組 成；金屬柵則連接一電阻連於電源供應器。陽極、金屬栅 t陰極先嵌入於一支撐架上再置入於石英燈管内，或是將 陽極、金屬栅和陰極直接固定於石英燈管之一側或兩側， 在-起封於石英燈管内。在另—實闕上，不f有支樓架， 陰極，固定於石英燈管的兩端部，陽極則是金屬形成於曲 面燈管上在塗佈一螢光塗層所組成。上述的螢光塗層是由 蝴酸錄與叙化合物、氧化魏與叙化合物或氟氯化鎖 與銪之化合㈣產生料線，此螢絲是屬於高電麗發光 型的螢光粉，紫外光波長範圍約280至400奈米(nm)。 f實施方式】 不為了解決環境污$，但又能持續使用紫外線燈進行所 ，之工作，本發贿供—種料雜，利闕基底上沈積 =膜作為陰極，發射電子，撞擊陽極上塗佈之螢光材質以 出秦外光’再選擇塗佈—細媒(二氧傾)於燈管放光 側，以紫外線觸發二氧化域生氫氧自由基，以作為殺菌 之用。 請參考圖-A及圖-B所示，係為本發明第一盘第二 兩實施例的紫外線燈。圖—續示之紫外線燈丨係包括有 -圓柱型之石英燈管1G，於石管内部部分表面之上有 一反射金屬層⑵形成於其上，—螢光塗層122形成於金 屬層121上，此反射金屬層121與螢光塗層⑵形成一陽 =2，石英燈管K)之中心轴向(χ軸)容置一場發射陰極 11由-圓柱形鎳金屬、線lu表面部分塗佈一層具有高效能 場電子發㈣性之韻層112，⑽—二氧化柳02)薄膜 U形成於石英燈管10之部分内表面上，其位於放光處且 與陽極位置相對。 圖-B所示之紫外線燈2係包括有—圓柱型之石英燈 管20 ’於石英燈管内部部分表面之上有一反射金屬層221 形成於其上，-螢光塗層222形成於反射金屬層22ι上， 此反射金屬層功與螢光塗層從形成一陽極22，石英燈 管20之中心、軸向(X軸)容置—條狀陰極21 (場發射陰極） 由-圓柱形錄金屬線211表面部分塗佈一層具有高效能場 電子發射·之碳簡212,—錢栅24㈣—電阻⑷， 二置，陽極與陰極之間，以及一二氧化鈦薄膜23形成於石 英燈管20之部分内表面上，其位於放光處且與陽極位置相 對。 其中，錦金屬線111、211表面上之碳膜層丨12、212， 係，，學氣相_法(〇/〇)沈積而得，其碳膜層112212 不品π全包覆鎳金屬線m、2U，僅需包覆適當面積即可 達成場發射陰極11、21的效果；又圖—A與圖一 B之差 別’在於圖—B中之紫外線燈2中還包含金屬柵24,金屬 ,24會串聯一電阻241後連於電源供應器，由電源供應器 提供一偏壓’且金屬柵24之直徑需小於場發射陰極21之 直徑且置於陽極22與陰極21之間。此金屬柵24之目的是 板供由陰極21射出之電子躍遷的能階’誘發陰極放射電 子，而達到降低操作電壓之目的。又金屬柵24可用銅 (Cu)、鈕(Ta)、鎢(W)或鐵(Fe)製成。以一較佳實施例而言， 電阻值為數百萬(M)至數千萬⑼⑽歐姆、陽極電壓約為5 至15kV ’而金屬栅所施加的偏壓約為5至10kV。 以下將以圖一B作為上述兩實施例製作過程之說明： 首先，製作場發射陰極21，以烷類氣體為碳來源氣 體’氫為還原氣體施以化學氣相沉積法，在一鎳金屬線21 i 上成長一厚約1至1〇微米(μιη)的碳膜層212做為陰極，成 長的温度約為850至1〇〇〇。〇。 接著，在石英燈管20上形成一反射金屬層221，其中， 反射金屬層221可利用鋁(Α1)、鐵、不銹鋼、或導電金屬 製成，然後，在反射金屬層221上塗佈一螢光塗層222以 做為陽極22。螢光塗層222的可為硼酸錄與鉛之化合物 (SrB6〇10 : pb)、氟氣化鋇與銪之化合物(BapQ : Eu)或氧化 矽鋇與鉛之化合物(BaSi2〇5 : pb)等等可發出的紫外光波長 之材料。這種螢光粉是屬於高電壓發光型的螢光粉，所發 出的紫外光波長範圍約為280至400奈米(nm)。 並在和陽極22相對處選擇性形成一二氧化鈦薄膜23 (光觸媒層）’二氧化鈦在這作為光觸媒，當陰極所發射電 子撞擊陽極所產生之紫外光，照射到二氧化鈦之薄膜23 後，將產生各帶正負電的電洞與電子載子，而電洞具有強 大的氧化能力，電子亦具有超強還原能力，在經與二氧化 鈦上的水氣反應後會製造出氧化威力強大的氫氧自由基， 如··氧分子(〇)、氧(〇2)、氫氧自由基(_0H)等，氫氧自由 基可針對細菌、有機物質、臭味、與有機氣體做分解處理， 右與紫外線相互配合更能使光觸媒之活性速率加倍(即二 氧化欽分解反應加快），可因分解反應而使空氣或用品具有 防污、殺菌、除臭、抗病毒等多種功能。當然亦可以選擇 其他相類似功能之光觸媒，作為二氧化鈦之替代材質。 最後，再將陰極21置放於石英燈管2〇之中心軸向， 並於放置時將表面為碳膜212面轉向使之面向於陽極22， 將金屬栅24放置於陽極22與陰極21之間，即可將石英燈 管20進行雜。石英· 2G内完全封裝前先進行真空^ 理，真空度約為10-1至10_7拖耳㈣(典型值約為1〇·6 torr) ’或者可選擇填充惰性氣體。 本發明的紫外線燈耗電量極低，功率約為15瓦特 (w) ’而在陽極和陰極的距離d為5至15毫米(聰），電壓 5至30千伏特(kV)，典型操作電壓約為15〇〇〇v，電流 至1宅安培(mA)，一般典型值約為〇 5mA即可進行操作。 本發明的電源供應H可以是二顆至三顆9¥的乾電池彼此 串聯:再經過昇壓電路昇壓後以提供電力；或另一種電源 供應器’雜料雛方波產生電路提供電力，方波電屋 的峰對峰值約為0V對15kV，週期約為5〇至200赫茲(HZ) 〇 一上述圖一 B之實施例紫外線燈其側剖面圖如圖二所 不。圖二係為本發明第二實施例的紫外線燈之網面示意 圖’其中’可看出其陰極21至少有一彎折處，係因錦金屬 線211在以化學氣相沈積碳膜212時並非完全將錄金屬線 211包覆，而是在鎳金屬線211的半圓柱表面形成一碳膜 212 ’因此在做化學氣相沈積之前，先將鎳金屬線si〗做彎 折’使之沈積於鎳金屬線211其中一面(或為沈積在彎折向 上面、或為沈積在彎折向下面），而便利於封裝時辨認鎳金 屬線211的碳膜212方向，其彎折處可以在鎳金屬線211 端部做成。 紫外線燈陰極21之鎳金屬線211經由燈管一側連結一 金屬線25連於電源供應器27之負端，陽極之反射金屬221 經由燈管一側連結一金屬線26連於電源供應器27之正端。 以一較佳實施例而言，石英燈管2〇直徑D約為〇 5 至3公分(cm)，而鎳金屬線211直徑約為〇 5至丨5毫米 (mm)，其中鎳金屬線211沿長軸向的半圓柱面以化學氣相 沉積法CVD，以成長一碳膜212，碳臈厚度約為丨至1〇 微米。為方便封裝時區隔成長碳膜的一面，錄金 接近兩端部翁具有—料，再使端侧定於石英玻璃管 2〇的兩端。經彎折後鎳金屬線211JL碳膜犯與金屬拇25 之距離約為2至5mm、與螢光塗層22的距離d約為3至 12mm、陽極和陰極在找距離下操作電壓約為$至15以。 μ上述圖-A、B實施例中，其中陰極21除了可位於燈 管的中心軸向處(X軸），亦可將陰極21延正向γ軸(與中 心，向垂直)設置於其中任—處’更或者可將陰極設置於相 對陽極之上半球面中的任—處，皆可達到__樣的功效其 .發光效果亦不會受到影響。 ’ 本發明的實施例也可以做如下變化，如圖三及圖四為 本發明第三、第四實施例。請同時參考圖三A與圖三B， 圖二A為本發明第三實施例紫外線燈管之剖面圖，圖三B 為本發明第三實施例紫外線燈源之爆炸圖。紫外線燈3係 包括有一石英燈管30内部部分表面塗佈一光觸媒層33與 一反射金屬層38、一平板陽極32、一平板陰極31、一金 屬柵34、一電阻341、以及一固定架39。 如圖三B所示，由平板陰極31、平板陽極32與金屬 柵34組成紫外線燈源300，其中，陰極31係為一鎳金屬 平板311上沈積一碳膜層312組成，陽極32係在一玻璃基 板321上形成一透明導電薄膜322後再塗佈一螢光塗層 323 ’金屬栅34則由一金屬條彎折成平面指狀排列且串聯 一電阻341所組成，最後再且依序將陰極31、金屬柵34 與陽極32放置於固定架39上。其中，電阻值約數十至數 1322999 百歐姆，·金屬柵34則是用以提供陰極射出之電子躍遷的能 階二以降低操作電壓；透明導電薄膜322可用氧化鋼錫(⑽ 或氧化辞(ZnO)，又在放置陰極31與陽極32時須注意，陰 極之碳膜層312與陽極之螢光塗層323需相向擺放f农 如圖三Α所示，其中紫外線燈源3〇〇置入石英燈管3〇 時，需將陽極32朝向燈管中塗佈光觸媒處，而燈管中除了 塗佈光觸媒處外，其餘皆塗佈反射性塗層，以減低紫外 線燈的光損耗；又陰極31與陽極32分別經由巧管一侧連 結一金屬線35、36連於電源供應器37之負端^正端。 以一較佳實施例而言，陽極32和金屬栅34距離耵 為3至12mm，金屬柵34與陰極31距離d2為2至$mm 時’可使操作電壓由15kV降至5至15kV。In the current lighting source, most of the lighting equipment contains mercury, because it must use mercury vapor as the medium of discharge during the illuminating process, and there is currently no suitable substitute for use; There are many other lighting sources (lamps, bulbs) with high concentrations of mercury, such as ultraviolet (uv) lamps. UV lamps play an important role in the electronics industry, whether in the production of integrated circuits, printed circuit boards, optoelectronic components, light-emitting diodes, laser diodes, photodetectors, solar cells, and liquid crystal displays. UV lamps are used in the exposure or heat drying process in the shadow step. Therefore, the industry will produce a large number of discarded high-concentration mercury lamps on a regular basis. 5 Because the recycling technology is not mature, it has not been announced that it should be recycled. This will become a pollution problem in the forest. Therefore, in order to avoid environmental pollution, many people in the county are in charge of the color equipment, so that we can have a better environment and reduce the degree of pollution. SUMMARY OF THE INVENTION θ The object of the present invention is to provide a mercury-free cold electron ultraviolet lamp that provides a green illumination to protect the environment from pollution. Another object of the present invention is to provide a sterilizable cold electron ultraviolet lamp which is coated with a layer of titanium oxide on a light-emitting lamp tube to illuminate the oxyhydrogen radical generated by the TiO2 by ultraviolet rays to achieve the sterilization effect. The invention discloses a cold electron ultraviolet lamp, comprising: a quartz lamp tube, a cathode, an anode and a metal M. The self-electrode is composed of a recording substrate and a carbon film thereon; the anode is composed of a conductive layer and a fluorescent coating thereon; and the metal grid is connected to a power supply. The anode and the metal grid t cathode are first embedded in a support frame and then placed in a quartz lamp tube, or the anode, the metal grid and the cathode are directly fixed to one side or both sides of the quartz lamp tube, and are sealed in quartz. Inside the lamp. On the other side, there is a support frame, a cathode, which is fixed at both ends of the quartz tube, and an anode formed of a metal formed on the curved tube and coated with a fluorescent coating. The above-mentioned fluorescent coating is produced by a compound of a sulphuric acid, a compound of oxidized Wei and a compound, or a compound of a fluorinated chlorinated lock and a ruthenium (4). The fluorite is a luminescent powder of a high-light-emitting type, ultraviolet The wavelength of light ranges from about 280 to 400 nanometers (nm). f Implementation] Not to solve the environmental pollution $, but can continue to use the UV lamp to carry out the work, the bribe supply - the mixed material, the deposition on the substrate, the film as the cathode, the electron emission, the impact on the anode The fluorescent material of the cloth is made of Qin Guangguang's re-selected coating-fine medium (dioxy-pouring) on the light-emitting side of the lamp, and ultraviolet light triggers the hydrogen peroxide radical in the dioxide field for sterilization. Referring to Figures -A and -B, the second embodiment of the first embodiment of the present invention is an ultraviolet lamp. Figure - The continuation of the ultraviolet lamp lanthanum includes a cylindrical-shaped quartz tube 1G having a reflective metal layer (2) formed thereon on the inner surface of the stone tube, and a fluorescent coating 122 is formed on the metal layer 121. The reflective metal layer 121 forms a positive = 2 with the fluorescent coating (2), and the central axis (the x-axis) of the quartz tube K) accommodates a field of the emitting cathode 11 coated with a layer of cylindrical nickel metal and a surface of the line lu. The film U having a high-energy field electron-emitting (four) texture layer 112, (10) - dioxide dioxide 02) is formed on a part of the inner surface of the quartz lamp tube 10, which is located at the light-emitting portion and opposite to the anode position. The ultraviolet lamp 2 shown in Fig.-B includes a cylindrical quartz tube 20' having a reflective metal layer 221 formed thereon on the inner surface of the quartz tube, and a fluorescent coating 222 formed on the reflective metal. On the layer 22, the reflective metal layer work and the fluorescent coating are formed from an anode 22, the center of the quartz lamp tube 20, and the axial direction (X-axis) is accommodated - the strip cathode 21 (field emission cathode) is recorded by a cylinder. The surface of the metal line 211 is coated with a layer of high-energy field electron emission, a carbon block 212, a money grid 24 (four)-resistor (4), two places, between the anode and the cathode, and a titanium dioxide film 23 formed in the quartz lamp tube 20. On the inner surface, it is located at the illuminating point and opposite the anode position. Among them, the carbon film layer 丨12, 212 on the surface of the brocade wires 111, 211, is obtained by the deposition of the gas phase _ method (〇/〇), and the carbon film layer 112212 is not coated with the π fully coated nickel metal wire. m, 2U, only need to cover the appropriate area to achieve the effect of the field emission cathodes 11, 21; and the difference between Figure-A and Figure 1B is that the ultraviolet lamp 2 in Figure-B also contains the metal grid 24, metal 24 is connected in series with a resistor 241 and then connected to the power supply. A bias is provided by the power supply and the diameter of the metal grid 24 is smaller than the diameter of the field emission cathode 21 and placed between the anode 22 and the cathode 21. The purpose of this metal grid 24 is to induce the cathode radiation electrons from the energy level of the electron transition emitted by the cathode 21 to achieve a lower operating voltage. Further, the metal gate 24 may be made of copper (Cu), button (Ta), tungsten (W) or iron (Fe). In a preferred embodiment, the resistance value is from several million (M) to tens of millions (9) (10) ohms, the anode voltage is about 5 to 15 kV', and the metal gate is applied with a bias voltage of about 5 to 10 kV. FIG. 1B will be described as a description of the fabrication process of the above two embodiments. First, a field emission cathode 21 is prepared, and a gas source of hydrogen as a carbon source gas, hydrogen as a reducing gas, is applied to a nickel metal wire. A carbon film layer 212 having a thickness of about 1 to 1 micron (μιη) is grown as a cathode on 21 i, and the growth temperature is about 850 to 1 Torr. Hey. Next, a reflective metal layer 221 is formed on the quartz lamp tube 20, wherein the reflective metal layer 221 can be made of aluminum (Α1), iron, stainless steel, or a conductive metal, and then a fluorescent layer is coated on the reflective metal layer 221. The light coating 222 serves as the anode 22. The fluorescent coating 222 may be a compound of boric acid and lead (SrB6〇10: pb), a compound of fluorine gasified ruthenium and osmium (BapQ: Eu) or a compound of lanthanum oxide and lead (BaSi2〇5: pb) A material that emits ultraviolet wavelengths. This type of phosphor is a high-voltage luminescent type of phosphor which emits ultraviolet light in the wavelength range of about 280 to 400 nanometers (nm). And a titanium dioxide film 23 (photocatalyst layer) is selectively formed on the opposite side of the anode 22, and titanium dioxide is used as a photocatalyst. When the electrons emitted by the cathode strike the ultraviolet light generated by the anode, the film 23 is irradiated onto the film 23 of titanium dioxide. Positive and negative electric holes and electron carriers, and the holes have strong oxidizing power, and the electrons also have super-reducing ability. After reacting with water vapor on titanium dioxide, it will produce powerful oxidizing hydroxyl radicals, such as · · Oxygen molecules (〇), oxygen (〇2), hydroxyl radicals (_0H), etc., hydroxyl radicals can be decomposed for bacteria, organic substances, odors, and organic gases, right and ultraviolet light It can double the activity rate of photocatalyst (that is, the decomposition reaction of dioxane is accelerated), and the air or the product can have various functions such as antifouling, sterilization, deodorization and antivirus due to decomposition reaction. Of course, other photocatalysts with similar functions can be selected as an alternative material for titanium dioxide. Finally, the cathode 21 is placed in the central axis of the quartz tube 2, and the surface is turned into a carbon film 212 surface to face the anode 22, and the metal grid 24 is placed on the anode 22 and the cathode 21. The quartz tube 20 can be mixed. Quartz·2G is vacuum-treated before it is completely encapsulated. The vacuum is about 10-1 to 10_7 (4) (typically about 1〇·6 torr) or it can be filled with inert gas. The ultraviolet lamp of the present invention consumes extremely low power, has a power of about 15 watts (w)' and has a distance d between the anode and the cathode of 5 to 15 mm (constant), a voltage of 5 to 30 kV (kV), and a typical operating voltage. It is about 15 〇〇〇v, the current is 1 ampere (mA), and the typical value is about mA5 mA. The power supply H of the present invention may be two to three 9¥ dry cells connected in series with each other: after being boosted by a booster circuit to provide power; or another power supply 'mixed crate wave generating circuit to provide power, The peak-to-peak value of the square wave house is about 0V vs. 15kV, and the period is about 5〇 to 200Hz (HZ). The side profile of the UV lamp of the embodiment of Figure 1B is shown in Figure 2. 2 is a schematic view of a mesh surface of an ultraviolet lamp according to a second embodiment of the present invention. It can be seen that the cathode 21 has at least one bend, and the ruthenium metal wire 211 is not completely formed by chemical vapor deposition of the carbon film 212. The metal wire 211 is coated, but a carbon film 212 is formed on the semi-cylindrical surface of the nickel metal wire 211. Therefore, before the chemical vapor deposition is performed, the nickel metal wire si is bent to deposit it on the nickel. One side of the metal wire 211 (either deposited on the upper side or deposited on the lower side) facilitates the orientation of the carbon film 212 of the nickel metal wire 211 during the packaging, and the bend can be in the nickel metal wire. The 211 ends are made. The nickel metal wire 211 of the cathode 21 of the ultraviolet lamp is connected to the negative end of the power supply 27 via a metal wire 25 connected to the lamp tube side, and the reflective metal 221 of the anode is connected to the power supply 27 via a metal wire 26 connected to the side of the lamp tube. The positive end. In a preferred embodiment, the quartz tube 2 has a diameter D of about 〇5 to 3 cm (cm), and the nickel metal line 211 has a diameter of about 〇5 to 丨5 mm (mm), wherein the nickel metal line 211 The semi-cylindrical surface along the long axis is CVD by chemical vapor deposition to grow a carbon film 212 having a carbon germanium thickness of about 丨 to 1 μm. In order to facilitate the side of the carbon film to be separated during the packaging, the gold is near the ends of the Weng, and the end side is fixed at both ends of the quartz glass tube. After bending, the nickel metal wire 211JL carbon film is about 2 to 5 mm away from the metal thumb 25, the distance d from the fluorescent coating 22 is about 3 to 12 mm, and the anode and cathode are operated at a distance of about $ To 15 to. μ In the above-mentioned embodiments, the cathode 21 can be placed in the center axis of the tube (X-axis), and the cathode 21 can be extended to the γ-axis (with the center, perpendicular). At the same time, the cathode can be placed at any position in the hemispherical surface above the anode, and the y-like effect can be achieved. The illuminating effect is not affected. The embodiment of the present invention can also be modified as follows. Figures 3 and 4 show the third and fourth embodiments of the present invention. Please refer to FIG. 3A and FIG. 3B simultaneously. FIG. 2A is a cross-sectional view of the ultraviolet lamp tube according to the third embodiment of the present invention, and FIG. 3B is an exploded view of the ultraviolet lamp source according to the third embodiment of the present invention. The ultraviolet lamp 3 includes a quartz lamp tube 30 internally coated with a photocatalyst layer 33 and a reflective metal layer 38, a flat anode 32, a flat cathode 31, a metal grid 34, a resistor 341, and a holder 39. . As shown in FIG. 3B, the ultraviolet light source 300 is composed of a flat cathode 31, a flat anode 32 and a metal grid 34. The cathode 31 is formed by depositing a carbon film layer 312 on a nickel metal flat plate 311. A transparent conductive film 322 is formed on the glass substrate 321 and then coated with a fluorescent coating 323. The metal grid 34 is formed by bending a metal strip into a planar finger shape and connecting a resistor 341 in series, and finally The cathode 31, the metal grid 34 and the anode 32 are placed on a holder 39. Wherein, the resistance value is about tens to 1322999 ohms, and the metal gate 34 is used to provide the energy level of the electron transition of the cathode to reduce the operating voltage; the transparent conductive film 322 can be oxidized steel tin ((10) or oxidized ( ZnO), when placing the cathode 31 and the anode 32, it should be noted that the carbon film layer 312 of the cathode and the fluorescent coating 323 of the anode need to face each other as shown in Fig. 3, wherein the ultraviolet light source 3 is disposed. When entering the quartz tube 3〇, the anode 32 needs to be coated with the photocatalyst in the tube, and the reflector is coated with a reflective coating to reduce the light loss of the ultraviolet lamp except for the photocatalyst. The cathode 31 and the anode 32 are connected to the negative terminal positive end of the power supply 37 via a metal line 35, 36, respectively. In a preferred embodiment, the distance between the anode 32 and the metal grid 34 is 3. Up to 12 mm, when the metal gate 34 and the cathode 31 are at a distance d2 of 2 to $mm, the operating voltage can be reduced from 15 kV to 5 to 15 kV.
請參閱圖四所示，為本發明第四實施例紫外線燈之示 意圖。圖四與圖三之差別在於此一實施例並不需要固定 架，而是直接將陰極41、金屬柵44與陽極41依其相對關 係固定於燈管之一側402，再將石英燈管一側402與石英 燈管體401封裝在一起，且此一實施例之反射性塗層 塗佈於燈管外側。 本發明所揭露之紫外線燈利用碳膜做為電子發射器， 又可添加一金屬柵以降低驅動電壓，因而不需填充汞蒸汽 以作為導電氣體，是以不僅可使用一般電池作為驅動電 源，亦因不需使用采蒸汽而成為兼顧環保之綠色照明器 12 又本發明之光觸媒層為選擇性塗層，可依其需要而選 擇増加此塗層與否。 本發明雖以較佳實施例闡明如上，然其並非用以限定 本發明精神及發明實體。對所屬技術領域中具有通常知識 者，當可輕易瞭解並利用其它元件或方式來產生相同的功 效。是以，在不脫離本發明之精神及範圍内所作之修改， 均應包含在下述之申請專利範圍内。 【圖式簡單說明】 圖一A係為本發明第一實施例紫外線燈之示意圖； 圖一 B係為本發明第二實施例紫外線燈之截面示意 TSI · 圍， 圖二係為本發明第二實施例紫外線燈之剖面示意圖； 圖三A係為本發明第三實施例紫外線燈之示意圖； 圖三B係為本發明第三實施例紫外線燈源之爆炸圖； 以及 圖四係為本發明第四實施例紫外線燈之示意圖。 【主要元件符號說明】 30〇紫外線燈源 38、48反射性塗層 、221反射金屬層 13 1322999 321、 421玻璃基板 322、 422透明導電層 24、 34、44金屬柵 27、37、47電源供應器 I、 2、3、4紫外線燈（紫外線燈） 13、23、33、43 光觸媒Referring to Fig. 4, there is shown an outline of an ultraviolet lamp according to a fourth embodiment of the present invention. The difference between FIG. 4 and FIG. 3 is that the embodiment does not require a fixing frame, but the cathode 41, the metal grid 44 and the anode 41 are directly fixed to one side 402 of the tube according to their relative relationship, and then the quartz tube is replaced by one. Side 402 is packaged with quartz tube body 401 and the reflective coating of this embodiment is applied to the outside of the tube. The ultraviolet lamp disclosed by the invention uses a carbon film as an electron emitter, and a metal grid can be added to reduce the driving voltage, so that mercury vapor is not required to be used as a conductive gas, so that not only a general battery can be used as a driving power source, but also The green illuminator 12 is environmentally friendly because it does not need to use steam. The photocatalyst layer of the present invention is a selective coating, and the coating can be selected according to the needs thereof. The present invention has been described above by way of a preferred embodiment, and is not intended to limit the spirit of the invention. Those skilled in the art will readily recognize and utilize other elements or means to produce the same. Modifications made without departing from the spirit and scope of the invention are intended to be included within the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a schematic view of an ultraviolet lamp according to a first embodiment of the present invention; FIG. 1B is a cross-sectional view of a second embodiment of the ultraviolet lamp according to the second embodiment of the present invention, and FIG. 2 is a second embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 3A is a schematic view of a UV lamp according to a third embodiment of the present invention; FIG. 3B is an exploded view of a UV lamp source according to a third embodiment of the present invention; A schematic view of a four embodiment ultraviolet lamp. [Main component symbol description] 30 〇 UV light source 38, 48 reflective coating, 221 reflective metal layer 13 1322999 321 , 421 glass substrate 322, 422 transparent conductive layer 24, 34, 44 metal grid 27, 37, 47 power supply I, 2, 3, 4 ultraviolet light (ultraviolet light) 13, 23, 33, 43 photocatalyst
II、 21、3卜41陰極 12、22、32、42 陽極 III、 211、311、411 鎳金屬 112、212、312、412 碳膜層 122、222、323、423 螢光塗層 10、20、30、40、401、402 石英燈管 25、 26、35、36、45、46 金屬線II, 21, 3, 41 cathodes 12, 22, 32, 42 anodes III, 211, 311, 411 nickel metal 112, 212, 312, 412 carbon film layers 122, 222, 323, 423 fluorescent coatings 10, 20, 30, 40, 401, 402 quartz lamps 25, 26, 35, 36, 45, 46 metal wires
1414