1332229 [0001] [0002] [0003] [0004] [0005] 093122902 099年07月30日梭正替換頁 發明說明： 【發明所屬之技術領域】 本發明係關於一種照明光源，尤其係關於一種對環境友 好無污染之冷陰極場發射光源。 【先前技術】 迄今為止，曰常照明使用之光源大多採用白熾燈及螢光 燈。白熾燈之歷史悠久，製作工藝簡單；惟，白熾燈消 耗之大部分電能轉化為熱能浪費掉，而未能直接用於發 光，故，其最大缺點係發光效率低下，已經逐漸被效率 較高之螢光燈所取代。 普通螢光燈包括一透明玻璃管，其内壁塗覆有白色或彩 色螢光材料，玻璃管内還充有汞蒸汽。其原理係利用熱 陰極發射之電子激發汞蒸汽發出紫外光，而紫外光照射 於螢光材料上發出白色光或彩色光。螢光燈係一種熱陰 極光源，發光效率較白熾燈高。惟，其缺點在於使用有 毒性之汞材料。一旦螢光燈管被打破之後，汞蒸汽流出 外面將對環境及人體有害。出於環保考慮，有些國家及 地區已經決定在未來幾年後，禁止使用此類含汞之螢光 燈。在此情形下，用來取代普通螢光燈或白熾燈之無汞 光源受到普遍歡迎。 因此，環保、對人ft無害、高效率、節能之螢光燈需求 巨大，市場前景廣闊。 200 1年1月17日公開之中國大陸發明專利申請第 001 0781 3. 5號揭露一種使用奈米碳管之白光源及其製造 方法。此白光源主要包括：用作陰極之金屬薄膜，形成 表單编號A0101 第4頁/共15頁 0993275924-0 1332229 099年07月30日修正替换·^ 在金屬薄膜上之導電聚合物薄膜圖案，奈米碳管基本垂 直固結在導電聚合物薄膜圖案並且一端露出外面，以及 具有螢光體之透明電極。奈米碳管發射電子轟擊螢光體 ，從而發出可見光。 [0006] 另外，2003年6月11日公開之中國大陸發明專利申請第 01 139810. 8號也揭露一種類似之使用奈米碳管之平板勞 光光源及其製作方法。 [0007] 惟’上述兩種螢光光源結構複雜，適合於平面顯示器， 並不適於普通照明。 陶8] 如第四圖所示’ 2003年6月18_舍告之中菌大陸實用新型 專利第02234995. 2號揭露一種無汞螢光燈，其包括：石 英玻璃燈管1，其内表面塗敷者螢光物ff，外表面形成 有導電薄膜層2 ;燈管1内部充有工作氣體氙氣4，兩端設 置有一對外電極5。工作時’在外電極5施加面頻交變電 壓’發射電子撞擊管内之工作氣體氙氣4，產生紫外輻射 ’再激發管内表面之螢光物質3發iij可見光。 [0009] 另外，美國專利第5, 866, 984號亦揭示了相類似之無汞 紫外放電源之結構。 [0010] 惟’上述兩件專利文獻揭露之螢光燈均係採用熱陰極發 射電子，其工作電壓較高，電能消耗較大；燈管内雖然 無汞，但卻需要填充其他惰性氣體以激發紫外光，如此 帶來以下缺點：一係增加成本，二係氣體容易泄漏，使 得螢光燈發光變暗或無法發光。 [0011] 因此，提供一種能耗低，發光效率高，對環境無害，且 093122902 表單編號A0101 第5頁/共15頁 0993275924-0 [0012] [0012] [0013] [0014] [0015] [0016] [0017] [0018] 093122902 無需填充額外氣體之螢光照明光源實為必要。 【發明内容】 為解決Μ技蚊螢紐發級率財、祕高以及需 要填充惰性氣體等技術問題，本發明之目的在於提供— 種場發射發光照日肢源’其對環如及人體無害，發光 效率高，祕相對較低，並且無需料任何氣體，可節 省成本。 為實現上述發明目的，本發明提供—種場㈣發光照明 光源，其包括：-透明之大致呈球形之外殼，其内表面 塗敷有-陽極層及螢光物質，所料㈣料真空密封 ’並且外殼之内部設有-具有外表面之導電陰極，圍繞. 所述外表面形成有複數微小之電子發射體。 具體而言，所述導電陰極包括一金屬球，所述電子發射 體形成於該金屬球之外表面。所述電子發射體包括奈米 碳管。 再具體而言，所述外殼包括一頸部，所述場發射發光照 明光源進一步包括一燈頭，該燈頭設置在該頸部並且與 之固定。並且燈頭設置有陽極電極及陰極電極。 更具體而言，金屬球係被一内部嵌有金屬絲之支撐柱支 撐，而金屬絲連接金屬球及燈頭之陰極電極。所述頸部 設有與陽極層接觸之陽極引線環，其通過導體連接陽極 電極。 另外，該頸部還設置有消氣劑。 相較於先前技術，本發明具有如下優點：首先，本發明 表單編號Α0101 第6頁/共15頁 0卯3275924-0 1332229 [0019] [0020] [0021] [0022] 093122902 I 099年07月30日梭正替换頁I 之光源不含采或者其他有害物質’所以對環境、人體無 害；第二，光源内部真空’不需填充任何氣體物質，相 對而言，本發明減少了填充氣體之成本；第三本發明 係冷陰極發射電子’相對於先前技術之熱陰極發射電子 ，本發明之發光效率更高，也就係可以降低能耗。 【實施方式】 下面結合圖式及具體實施例對本發明之實施方式作詳細 描述。 清參閱第-圖及第一圖’本發明較佳實施例場發射照明 燈泡之外形與普通白織燈泡相似，包括_大致呈球體、 具有一頸部（圖未標示）之透靖破蹲外'殻1〇，與該頸部相 連且固定之燈頭（圖未標示）’以及自燈辱嗓伸到球體内 部之電子發射陰極（圖未標示）。 > 其中，該玻璃外殼10之内部真空，其内壁塗敷有一陽極 層20及螢光層30。陽極層20係一層遂明導電薄膜，一般 採用ΙΤΟ導電薄膜，螢光層30含有螢光物質，包括白色螢 光物質，或彩色螢光物質^當電子轟擊螢光物質時可發 出白色或彩色可見光。另外，陽極層2〇覆蓋球形内壁並 延伸至該玻璃外殼1G之頸部，並可在頸部内表面環繞設 置-陽極引線環24以便_線22 ;而螢光層3〇則僅需 覆蓋球形内壁即可’無需延伸至頸部。另外，所述頸部 可通過一封口（圖未標示）而密封。 所述燈頭之形狀與普通白熾燈頭基本相同，其與玻璃外 殼10之頸部相連，並及頤部固定。本實施例中，燈頭包 括形成於周關面及底面之具有外螺紋形狀之陽極電極 表單煸號Α0101 第7 1/共15頁 繊滿咖-0 1332229 [0023] [0024] [0025] 099年07月30日俊正巷換頁 23，其通過兩引線22以及-陽極引線柱21與陽極引線環 24連接導通；以及位於燈頭之底部並且突出於外面之陰 極電極43。燈頭只係為了引出陽極電極23及陰極電極43 ，所以，本發明並不限於以上描述之陽極電極及陰極電 極之結構。換言之，燈頭亦可採用其他合適之形狀或結 構’例如類似白織燈之卡扣式燈頭結構。 為使兩電極之間絕緣，可進一步在陰極電極43與陽極電 極23之間設置一絕緣介質15，例如玻璃或陶瓷塊，當然 ，也可通過其他方式使二者之間絕緣。另外，在燈泡内 部還可進一步設置一消氣劑13。為了不影響電子發射及 發光，消氣劑13最好設置在頸部。 電子發射陰極可用來發射電子，其包括一表面具有奈米 碳管42(參見第三圖）之金屬球40，與之相連起支撐作用 之玻璃支柱14以及陰極引線45。其中玻璃支柱14係中空 的，其可固定於頸部之封口處；陰極引線45穿過玻璃支 柱14内中空，一端與金屬球40接觸，另一端穿過燈頭並 與陰極電極43相連。 請參見第三圖，本實施例中，電子發射陰極之金屬球40 位於燈泡之球形由 v心’其直徑遠小於燈泡之玻璃外殼1 〇 之直徑。複數太I m米碳管42形成於金屬球40之表面；優選 的，其中每根秦伞* 、木％i管42至少一端露出金屬球40之表面 ’更優、的每根奈米碳管42直立於該表面，其一 定於該表面之某 端固 ‘點 另一端基本沿該點垂直朝外》 本發明之製作方、、表^ 在可以借鑒普通白熾燈之製作工藝，以 093122902 表單编號Α0101 第8頁/共15頁 0993275924-0 [0026] 1332229 099年07月30日修正巷換^ 及金屬基底形成奈米碳管之先前技術。以一個直徑4釐米 之球形燈泡為例：帶有頸部之玻璃外殼10可以參照白熾 燈泡之製作方法，惟’需要進一步在玻璃外殼10内表面 形成ΙΤ0薄膜作為陽極層20，以及在陽極層20表面形成螢 光物質作為螢光層30 ;電子發射陰極之製作可選用直徑 約1毫米至數毫米之金屬球40作為奈米碳管之載體，然後 利用CVD(化學氣相沈積）法直接生長或者通過電泳沈積方 法在金屬球40表面形成一層奈米碳管42，而玻璃支柱14 之長度與玻璃外殼10之半徑大致相同或稍長，其内之陰 極引線45採用微細之金屬絲即可，金屬絲45—端連接金 屬球40，另一端延伸出玻璃支右键4外承镇用、：燈頭基本 一1 V „ 上與普通白熾燈之燈頭製作部3同^:製作陽極:引線環24及 陽極引線柱21，並分別焊接兩引-1^22，連‘接導通陽極電 極23及陽極層20 ;將延伸出玻璃支柱14外面之金屬絲45 連接到陰極電極43，即可連接導通陰極電極43及金屬球 40 ;然後將玻璃外殼1 0内部抽真:空、利疳玻璃熔封技術 密封即可。另外，密封之前還j在靠近玻璃外殼1〇頸部 附近設置消氣劑I3，以便政戎餘之氣體確保真空 [0027] 本發明之場發射發光照明光源使用時，可在陰極電極43 施加負的直流或脈衝電壓，而陽極電極23接零電位，這 樣在金屬球40與陽極層20之間產生一個電場，迫使金屬 球40表面之奈米碳管42發射電子，電子轟擊螢光層3〇從 而發出可見光。 [0028] 以上係本發明之較佳實施例，但本發明之内容並不限於 093122902 表單編號A0101 第9頁/共15頁 0993275924-0 1332229 099年〇7月30日梭正替換頁 以上實施例。本技術領域普通技術人員應該能夠理解， 本發明還可有其他變化，例如玻璃外殼1 0可以係圓球形 ，橢圓球形等形狀，金屬球40尺寸及形狀可根據需要而 改變，奈米碳管42之製作方法也可根據實際情況採用不 同方法，也可以採用包括其他奈米管、奈米線以及金屬 尖端在内之各種能夠在電場作用下發射電子之電子發射 結構。本發明之燈頭之結構不限於實施例所描述，只需 月夠引出陽極電極及陰極電極即可。 [0029] 本發明具有下職點：由於光狀_無需填充汞蒸汽 或者其他氣體’所以不僅對環境無害，也不會對人體有 害’而且可節省成本；而且本發明使用冷陰極，電子直 接A擊勞光物質而發光，有利於提高發先效率，從而節 省電能；另外’本發明可以參照普通白熾燈之製作工敲 及結構，換言之，無需料特殊製程及設備，可以降低 生產成本。 [0030] 综上所述’秘合發料狀料遂依法提 出專射請。惟，以上所述者僅為本發明之較佳實施例 ’自不旎以此限制本案之申請專利範圍 技藝之人士援依本發明之护w不系 月之精相叙等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0031] 第一圖係本發明場發射發光照明絲之較佳實施例之燈 泡示意圖； [0032] 第二圖係第一 圖之局部放大示意圖 093122902 表單编號A0101 第10頁/共15頁 0993275924-0 1332229 099年07月30日核正巷換頁 [0033] 第三圖係沿第一圖之III-III剖線之剖面示意圖； [0034] 第四圖係先前技術無汞螢光燈之示意圖。 [0035] 【主要元件符號說明】 玻璃外殼：10 [0036] 消氣劑：13 [0037] 玻璃支柱：14 [0038] 絕緣介質：15 [0039] 陽極層：2 0 [0040] 陽極引線柱：21 [0041] 引線：22 [0042] 陽極電極：23 [0043] 陽極引線環：24 [0044] 螢光層：30 [0045] 金屬球：4 0 [0046] 奈米碳管：42 [0047] 陰極電極：43 [0048] 陰極引線：45 093122902 表單編號A0101 第11頁/共15頁 0993275924-01332229 [0001] [0001] [0002] [0003] [0005] [0005] 093122902 July 30, 2003, the following is a replacement page. [Technical Field] The present invention relates to an illumination source, and more particularly to a pair Environmentally friendly and pollution-free cold cathode field emission source. [Prior Art] Up to now, incandescent lamps and fluorescent lamps have been mostly used as the light source for lighting. The incandescent lamp has a long history and simple production process. However, most of the electric energy consumed by the incandescent lamp is converted into heat energy and is not directly used for illuminating. Therefore, its biggest drawback is that the luminous efficiency is low, and it has been gradually become more efficient. Replaced by fluorescent lights. A common fluorescent lamp includes a transparent glass tube whose inner wall is coated with a white or colored fluorescent material, and the glass tube is filled with mercury vapor. The principle is to use the electrons emitted by the hot cathode to excite the mercury vapor to emit ultraviolet light, and the ultraviolet light to illuminate the fluorescent material to emit white light or colored light. Fluorescent lamps are a kind of hot cathode light source with higher luminous efficiency than incandescent lamps. However, its disadvantage is the use of toxic mercury materials. Once the fluorescent tube is broken, the mercury vapor flowing out will be harmful to the environment and the human body. Due to environmental concerns, some countries and regions have decided to ban the use of such mercury-containing fluorescent lamps in the next few years. In this case, mercury-free light sources used to replace ordinary fluorescent lamps or incandescent lamps are generally welcomed. Therefore, the demand for environmentally friendly, non-hazardous, high-efficiency, and energy-saving fluorescent lamps is huge, and the market prospect is broad. Chinese Mainland Patent Application No. 001 0781 published on January 17, 2001. 3. No. 5 discloses a white light source using a carbon nanotube and a method of manufacturing the same. The white light source mainly comprises: a metal film used as a cathode, forming a form number A0101, page 4 / a total of 15 pages 0993275924-0 1332229, the correction of the replacement of the metal film on the metal film, The carbon nanotubes are substantially vertically fixed in the conductive polymer film pattern and exposed to the outside at one end, and a transparent electrode having a phosphor. The carbon nanotubes emit electrons that bombard the phosphors, thereby emitting visible light. In addition, a flat-plate work light source using a carbon nanotube and a method of fabricating the same are also disclosed in the Chinese Patent Application No. 01 139810. [0007] However, the above two kinds of fluorescent light sources have a complicated structure and are suitable for a flat panel display, and are not suitable for general illumination. Tao 8] As shown in the fourth figure, 'June 18, 2003 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The coater phosphor ff is formed with a conductive film layer 2 on the outer surface; the lamp tube 1 is internally filled with a working gas helium gas 4, and the outer electrode 5 is disposed at both ends. During operation, an area frequency alternating voltage is applied to the outer electrode 5 to emit electrons to strike the working gas helium gas 4 in the tube to generate ultraviolet radiation. The phosphor material 3 on the inner surface of the tube is re-excited to emit iij visible light. In addition, a structure similar to a mercury-free ultraviolet discharge source is also disclosed in U.S. Patent No. 5,866,984. [0010] However, the fluorescent lamps disclosed in the above two patent documents all adopt hot cathode emission electrons, and the working voltage is high, and the electric energy consumption is large; although there is no mercury in the lamp tube, it needs to be filled with other inert gas to excite Ultraviolet light brings the following disadvantages: a series of increased costs, the second-line gas is easy to leak, making the fluorescent lamp dark or unable to emit light. [0011] Therefore, a low energy consumption, high luminous efficiency, and no harm to the environment is provided, and 093122902 Form No. A0101 Page 5 / Total 15 Page 0993275924-0 [0012] [0013] [0015] [0015] [0018] 093122902 A fluorescent illumination source that does not require additional gas is necessary. SUMMARY OF THE INVENTION In order to solve the technical problems of the rate of money, the high secret, and the need to fill the inert gas, the object of the present invention is to provide a field emission illuminating photo of the limb source, which is harmless to the ring and the human body. The luminous efficiency is high, the secret is relatively low, and no gas is required, which can save costs. In order to achieve the above object, the present invention provides a field (four) illuminating illumination source comprising: a transparent substantially spherical outer casing, the inner surface of which is coated with an anode layer and a fluorescent material, and the material is (four) material vacuum sealed ' And an inner portion of the outer casing is provided with a conductive cathode having an outer surface, and a plurality of tiny electron emitters are formed around the outer surface. Specifically, the conductive cathode includes a metal ball, and the electron emitter is formed on an outer surface of the metal ball. The electron emitter includes a carbon nanotube. Still more particularly, the housing includes a neck, and the field emission illuminating light source further includes a base disposed at the neck and secured thereto. And the lamp cap is provided with an anode electrode and a cathode electrode. More specifically, the metal ball is supported by a support column in which the wire is embedded, and the wire connects the metal ball and the cathode electrode of the lamp cap. The neck is provided with an anode lead ring in contact with the anode layer, which is connected to the anode electrode by a conductor. In addition, the neck is also provided with a getter. Compared with the prior art, the present invention has the following advantages: First, the present invention forms the number Α0101, page 6 / total 15 pages, 0 卯 3275924-0 1332229 [0019] [0021] [0022] 093122902 I 099 July On the 30th, the light source of page I is replacing the source I does not contain any other harmful substances, so it is harmless to the environment and the human body. Second, the internal vacuum of the light source does not need to be filled with any gaseous substances. In contrast, the present invention reduces the cost of filling gas. The third invention is a cold cathode emitting electron 'relative to the prior art hot cathode emitting electrons, and the luminous efficiency of the present invention is higher, that is, the energy consumption can be reduced. [Embodiment] Hereinafter, embodiments of the present invention will be described in detail in conjunction with the drawings and specific embodiments. Referring to the first and first figures, the field emission illumination bulb of the preferred embodiment of the present invention is similar to a conventional white woven bulb, including a substantially spherical body having a neck (not shown). 'Shell 1〇, a fixed base (not shown) attached to the neck and an electron-emitting cathode (not shown) extending from the lamp to the inside of the sphere. > wherein the inner vacuum of the glass envelope 10 is coated with an anode layer 20 and a phosphor layer 30 on the inner wall. The anode layer 20 is a layer of a conductive film, generally using a conductive film, and the fluorescent layer 30 contains a fluorescent substance, including a white fluorescent substance, or a color fluorescent substance. When the electron bombards the fluorescent substance, it emits white or colored visible light. . In addition, the anode layer 2〇 covers the spherical inner wall and extends to the neck of the glass envelope 1G, and may be disposed around the inner surface of the neck-anode lead ring 24 for the _ line 22; and the phosphor layer 3 仅 only needs to cover the sphere The inner wall can be 'no need to extend to the neck. Alternatively, the neck can be sealed by a mouth (not shown). The base is substantially identical in shape to an ordinary incandescent base, which is attached to the neck of the glass casing 10 and secured to the crotch portion. In this embodiment, the lamp cap includes an anode electrode form having an externally threaded shape formed on the circumferential surface and the bottom surface. 煸 101 0101 7 1 / 15 pages 繊 full coffee - 0 1332229 [0023] [0024] [0025] 099 On July 30, Junzheng Lane changed page 23, which was connected to the anode lead ring 24 through two leads 22 and an anode lead post 21; and a cathode electrode 43 located at the bottom of the base and protruding outside. The lamp cap is only for extracting the anode electrode 23 and the cathode electrode 43, and therefore the present invention is not limited to the structure of the anode electrode and the cathode electrode described above. In other words, the base can also be of other suitable shape or configuration' such as a snap-on base structure like a white woven lamp. In order to insulate between the electrodes, an insulating medium 15, such as a glass or ceramic block, may be further disposed between the cathode electrode 43 and the anode electrode 23. Of course, the two may be insulated by other means. Further, a getter 13 may be further provided inside the bulb. In order not to affect electron emission and luminescence, the getter 13 is preferably disposed at the neck. The electron-emitting cathode can be used to emit electrons, which includes a metal ball 40 having a surface of a carbon nanotube 42 (see Fig. 3), a supporting glass post 14 and a cathode lead 45 connected thereto. The glass pillar 14 is hollow and can be fixed at the sealing portion of the neck; the cathode lead 45 is hollow through the glass pillar 14, one end is in contact with the metal ball 40, and the other end is passed through the lamp cap and connected to the cathode electrode 43. Referring to the third figure, in the present embodiment, the metal ball 40 of the electron-emitting cathode is located at the spherical shape of the bulb, and the diameter of the core is much smaller than the diameter of the glass envelope 1 of the bulb. A plurality of I m meters of carbon tubes 42 are formed on the surface of the metal balls 40; preferably, each of the Qin umbrellas* and the wood %i tubes 42 exposes at least one end of the surface of the metal ball 40's superior each of the carbon nanotubes 42 erected on the surface, which must be fixed at one end of the surface, and the other end is substantially perpendicular to the point along the point. The maker of the present invention, the table can be borrowed from the manufacturing process of the ordinary incandescent lamp, and is edited in the form of 093122902. No. 0101 Page 8 of 15 0993275924-0 [0026] 1332229 The first technique of correcting the lane change and forming the carbon nanotubes on the metal substrate on July 30, 099. Taking a spherical bulb having a diameter of 4 cm as an example: the glass casing 10 having a neck can refer to the manufacturing method of the incandescent bulb, except that it is necessary to further form a ΙΤ0 film as the anode layer 20 on the inner surface of the glass envelope 10, and in the anode layer 20 A phosphorescent material is formed on the surface as the fluorescent layer 30; the electron-emitting cathode can be fabricated by using a metal sphere 40 having a diameter of about 1 mm to several millimeters as a carrier of the carbon nanotube, and then directly growing by CVD (Chemical Vapor Deposition) or A layer of carbon nanotubes 42 is formed on the surface of the metal ball 40 by an electrophoretic deposition method, and the length of the glass pillars 14 is substantially the same as or slightly longer than the radius of the glass envelope 10, and the cathode leads 45 therein are made of fine metal wires. The wire 45 is connected to the metal ball 40 at the end, and the other end is extended to the right side of the glass. The outer ring 4 is used for the town. The base is basically 1 V. The upper part is the same as the base of the ordinary incandescent lamp. 3: Making the anode: lead ring 24 and anode The lead post 21 is soldered to the two leads -1^22, respectively, and the anode electrode 23 and the anode layer 20 are connected; the wire 45 extending outside the glass pillar 14 is connected to the cathode electrode 43, The cathode electrode 43 and the metal ball 40 can be connected to each other; then the inside of the glass casing 10 can be vacuumed: air and sealed by a glass sealing technique. In addition, before sealing, a gas is set near the neck of the glass casing 1 Agent I3, in order to ensure the vacuum of the gas remaining in the process [0027] When the field emission illuminating light source of the present invention is used, a negative direct current or pulse voltage can be applied to the cathode electrode 43, and the anode electrode 23 is connected to the zero potential, so that the metal ball An electric field is generated between 40 and the anode layer 20, forcing the carbon nanotubes 42 on the surface of the metal sphere 40 to emit electrons, and electrons bombard the phosphor layer 3 to emit visible light. [0028] The above is a preferred embodiment of the present invention, but The content of the present invention is not limited to 093122902 Form No. A0101 Page 9 / Total 15 Page 0993275924-0 1332229 The following examples are replaced by the pages of July 30, 2003. It will be understood by those skilled in the art that the present invention also There may be other changes, for example, the glass casing 10 may be spherical, elliptical or the like, and the size and shape of the metal ball 40 may be changed as needed, and the preparation of the carbon nanotube 42 is made. The method may also adopt different methods according to actual conditions, and may also adopt various electron emission structures capable of emitting electrons under the action of an electric field, including other nanotubes, nanowires, and metal tips. The structure of the lamp cap of the present invention is not limited to implementation. As described in the example, it is only necessary to take out the anode electrode and the cathode electrode in a month. [0029] The present invention has the following functions: since it is light-free, it does not need to be filled with mercury vapor or other gases, so it is not harmful to the environment, nor to the human body. Harmful' and cost-saving; and the invention uses a cold cathode, the electron direct A strikes the light-emitting substance and emits light, which is beneficial to improve the efficiency of the first stage, thereby saving electric energy; and the invention can refer to the structure of the ordinary incandescent lamp and the structure In other words, the production cost can be reduced without special processes and equipment. [0030] In summary, the secret source of the material is required to be specially raised according to law. However, the above description is only a preferred embodiment of the present invention. The person skilled in the art to limit the scope of the patent application of the present invention is not limited to the equivalent modification or variation of the essence of the present invention. All should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0031] The first figure is a schematic diagram of a light bulb of a preferred embodiment of the field emission light-emitting illumination wire of the present invention; [0032] The second figure is a partial enlarged view of the first figure 093122902 Form No. A0101 No. 10 Page/Total 15 Page 0993275924-0 1332229 July 30, 2010, Nuzheng Lane Change Page [0033] The third diagram is a cross-sectional view along the line III-III of the first diagram; [0034] The fourth diagram is prior art without Schematic diagram of a mercury fluorescent lamp. [Description of main component symbols] Glass casing: 10 [0036] Air getter: 13 [0037] Glass pillar: 14 [0038] Insulating medium: 15 [0039] Anode layer: 2 0 [0040] Anode lead column: 21 [0041] Lead: 22 [0042] Anode electrode: 23 [0043] Anode lead ring: 24 [0044] Fluorescent layer: 30 [0045] Metal ball: 4 0 [0046] Carbon nanotube: 42 [0047] Cathode Electrode: 43 [0048] Cathode Lead: 45 093122902 Form No. A0101 Page 11 / Total 15 Page 0993275924-0