478006 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（1) 發明背景 發明領域 本發明大致有關照明燈，及更特別有關一種陶瓷弧放 電燈。 技藝之討論 放電燈藉著以傳送於二電極間之電弧電離諸如金屬鹵 化物及水銀混合物之充塡物質產生光。該電極及該充塡物 質係密封在一半透明或透明放電室內，該放電室維持該已 通電充塡物質之壓力及允許所放出光線通過其內。亦已知 爲一"定量”之充塡物質回應於該電弧之激發而放出想要 之光譜能量分布。譬如，鹵化物提供一呈現寬廣選擇之光 線性質之光譜能量分布，例如色溫、色彩表現、及光效能 〇 陶瓷放電燈室已發展至在較高溫度下、亦即攝氏950 度以上運作，用以改善色溫、色彩表現、及光效能，而大 幅減少與該塡料材料之反應。陶瓷放電室通常係由陶瓷粉 末擠出或沖模壓製之許多零組件所製成。共同擁有、同時 待審而於1 998年四月28日提出之美國專利申請案第 09/067,8 1 6號及1 999年二月16日提出之美國專利申請案第 09/250,634號敘述一種習知陶瓷放電室型式，其把用於形成 該陶瓷放電室之接合處數目減至最少。譬如，先前經驗係 使用五種零組件之結構，包含一大體而言藉著第一及第二 端點插塞在兩端封閉之中心圓柱體’使得第一及第二腿部 ;-------------------- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -4 - 478006 經濟部智慧財產局員工消費合作社印製 A7 B7_______ 五、發明說明（2) 位於該端點插塞中。該參考申請案係直指使用少至二零組 件以形成該陶瓷放電室之組合件。 商業上可買到之陶瓷金屬鹵化物燈產品全部具有至少 一項共通之特色。亦即每一產品具有一放電管幾何形狀， 在此承接該導線之陶瓷腿部、該真空氣密之陶瓷至金屬密 封件、及該電極係位在該放電體之相向兩端。該標準之兩 端式陶瓷放電管幾何形狀係描述在第1圖中。然而有此幾 何形狀未能滿足一小巧燈結構之需求之實例。如此，縮短 該燈之全長或該光線中心之長度及藉此增加該燈設計之小 巧性已不可能。 在第1圖所示標準兩端式放電管幾何形狀中縮短該電 弧放電管之長度仍然未能滿足所有工業需求。縮短該放電 管長度係受限於在該陶瓷腿部端點之陶瓷至金屬密封件所 能承受之最高溫度。既然該密封玻璃確保氣體及真空氣密 性，設計家已小心地避免將該密封件暴露於可不利地影響 該密封玻璃之升高或超高溫度下。 亦如該參考之同時待審申請案中所述，於該電弧管中 限制零組件數目及同樣限制接合處數目導致所想要之效率 及減少製造成本。如此，剔除製造步驟、零組件，及以較, 高之燈光效能達成該傳導性及輻射性熱損失之改善皆是吾 人所想要之特色，而在弧隙長度獲得更好之控制導致無閃 爍運作、更可靠之啓動、更穩定之運作、及增加燈光效能 與色彩性能。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） -5- — II 1/-----------^ ------------1 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 478006 A7 一 —__B7 五、發明說明（3) 發明槪要 一陶瓷放電燈包含一具有適於承接充塡物質之放電室 之陶瓷外殼。第一及第二電極係以隔開之關係放置於該室 內，以回應一跨過該電極所施加之電位產生電弧。該電極 在非軸向關係中相對彼此放置。 於本發明之一示模實施例中，該陶瓷放電燈之電極定 義卓一' 纟而電弧营’亦即讀電極由電弧管同一端點伸入該室 〇 於本發明之另一較佳示範實施例提供一圓頂形端點及 在其內選擇性地倂入一整體鏡片。 又另一示範實施例使該電極彎曲朝向彼此，以致放在 該室內之第一端點間之尺寸比放置在該室外之第二端點更 靠近在一起。 圖面簡述 第1圖說明一具有先前技藝之陶器放電室之燈組件。 第2 -1 3圖係根據本發明示範實施例之各種陶瓷弧放電 室之放大視圖。 主要元件對 照 表 20 放 電 燈 22 放 電 宰‘ 24 第 — 電 極 2 6 第 電 極 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -6 - ---------1-------------------- —ill (請先閱讀背面之注意事項再填寫本頁) 478006 A7 B7 五、發明說明（4) 經濟部智慧財產局員工消費合作社印製 28 第一導體 30 第二導體 32 中心主體部份 34 第一腿部 36 第二腿部 50 第一零組件 52 壁凹 54 側壁 60 第二零組件/插塞 62 第一腿部 64 第二腿部 66 端壁 70 肩部 72 終端 80 第一零組件/插塞 82 肩部 84 側壁/第二零組件 86 腿部延伸部份 88 腿郃延仲部份 90 排氣管 100 蓋子構件 102 圓頂架構 104 鏡片 I 10 笫· Μ部-摘塞卷 »—--------^--------- (璜先閱讀背面之注意事項再填寫本兵) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -7- 經濟部智慧財產局員工消費八：：作社印製 478006 A7 __B7_ 五、發明說明（5) 112 第二腿部-插塞零組件 1 Η 肩部 116 肩部 120 中心主體部份 130 第二零組件 132 第一腿部 1 3^1 第二腿部 136 第一電極 13 8 第_•電極 140 第一導體 142 第二導體 150 凹入/彎曲壁凹 152 凹入/彎曲壁凹 160 圓頂蓋子 162 第二零組件 164 彎曲壁凹 166 腿部延伸部份 168 腿部延伸部份 發明之詳細敘述 第1圖說明一包含兩端式放電室22之先前技藝陶瓷放 電燈20 ，該放電室包含第一及第二電極24,26及一緊閉地 到裝於該放電宗內之充戰物質。該m極24，26係迚接干導體 28,30 ，以用該技藝中所熟知之方式越過該電極施加一電位 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) :—--------訂—-------線 (請先閱讀背面之注意事項再填寫本頁) 478006 A7 B7 五、發明說明（6) (請先閱讀背面之注意事項再填寫本頁) 差。於操作時，該電極產生一電離該充塡物質之電弧，以 於該放電室中產生一電漿。對於陶瓷金屬鹵化物燈，該充 塡物質典型包含汞、諸如氬或者氙之稀有氣體、及諸如 Nal，Tll或Dyh等金屬鹵化物之混合物。其他充塡物質之例 子係該技藝中所熟知。 該放電室包含一中心圓柱主體部份32及第一與第二腿 部34,36。該電極係藉著導體連接至一電源（未示出）。該電 極典型係由鎢製成，而該導體係鈮及鉬，因爲其熱膨脹係 數係與鋁相近，以減少在該氧化鋁腿部上所引起之熱應力 〇 經濟部智慧財產局員工消費合作社印製 在藉著參考數字40,42加以識別之相向兩端密封該放電 室。該密封最好係一繞著該導體承接之鏑-鋁-氧化矽玻璃熔 塊，及當溶化時，該玻璃流入該腿部以在該導體及腿部之 間形成一密封。選擇該腿部之尺寸以相對該放電室之升高 溫度減少該密封之溫度達一想要數量。如將察覺者，該電 極之軸向位置影響越過該電極之壓降，此壓降對所產生之 光線品質能具有一顯著之影響。如此，其重要的是控制該 腿部之軸向位置，因爲其影響該電極間之間隔。 如上面所示同時待審之申請案中所教導，吾人想要的 是減少包含該放電室之零組件數目，以減少各零組件間之 接合數目。這具有於製造期間促進組裝該放電室之優點及 減少潛在之接合瑕疵敝丨]，以及減少該放m室於處理期問 在接合區域之破壞可能性。最好藉著沖模壓製陶瓷粉末及 黏合劑之混合物製成該零組件。譬如，該混合物包含重量 -9- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 478006 A7 '_B7__.___ 五、發明說明（7) 百分比9 5 - 9 8之陶瓷粉末及2 - 5重量百分比之有機黏合劑。 該陶瓷粉末可包含具有百分之99.98純度之氧化鋁及約每克 2 -10平方米之表面積。該氧化鋁粉末可摻雜氧化鎂，以防 止晶粒增生，其數量譬如等於氧化鋁之重量百分比0.03-0.2 ，敁好爲0.05 。其他可j|:j之陶瓷材料包含非反應性耐火材 料氧化物及氮氧化物，諸如氧化釔、氧化餾、及氧化飴， 及其具有氧化鋁之固體溶液及化合物，諸如釔鋁-柘榴石及 氮氧化鋁。可個別或結合使用之黏合劑包含有機聚合物， 諸如多元醇、聚乙烯醇、醋酸乙烯酯、丙烯酸酯、纖維素 及聚酯。 已用於沖模壓製一實心圓柱體之示範成份包含重量百 分比97之氧化鋁粉末，具有約每克7平方米之表面積，可 用來自南卡羅來納州沙羅特市貝考斯基（Baikowsh)國際股 份有限公司之CR7號產品。該氧化鋁粉末摻雜有氧化鎂， 其數量爲該氧化鋁重量百分比0.1。該成份亦包含重量百分 比2.5之聚乙烯醇者可用來自通用照明公司之115_〇〇9-〇18 號產品及遼量百分比1/2(0.5)之含縱蠟（(：^〇^^1；〇600 &可）丨1 來自州際化學公司之產品。 在沖模壓製之後，該黏合劑典型藉著熱解由該尙未硬 化部份移去，以形成一素胚未燒製部份。可譬如藉著於空 氣中於4 - 8小詩期問將該❿未硬化部份山室溫加熱至約 攝氏900〜1 1 00度之最高溫度以施行該熱解，然後保持在 該最高溫度達1 - 5小時之久，及然後冷卻該部份。在熱 解之後，該素胚未燒製部份之多孔性典型係約百分之4 ϋ - 5 () 本紙張尺度適用中國國家標準（cSs)A4規格（210 X 297公髮) ~|〇~ " ~ ----------ΊΙΛΨ (請先閱讀背面之注意事項再填寫本頁) 訂--- 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 478006 A7 B7 五、發明說明（8) 〇 然後機器加工該尜胚米燒製郃份。譬如，沿著茲寊 心圓柱體之軸鑽一小孔’以提供該第一腿部之孔。其次’ 可沿著該軸之一部份鑽一更大直徑之孔，以形成該室。最 後，該原始實心室之外部可譬如以一車床沿著該軸向部份 加工，以形成該第一腿部之外表面。藉著先鑽一小孔以提 供穿過該腿部之孔、加工該原始實心圓柱體之外部以產生 該腿部、及加工該過渡部份、留下該徑向凸緣即能以類似 方式形成該第二腿部構件。 於燒結之前通常將已加工之零件組合在一起，以允許 該燒結步驟將各零件接合在一起。根據一示範之接合方法 ，選擇用於形成該主體構件及該腿部之素胚未燒製部份之 密度，以於該燒結步驟期間達成不同程度之收縮。藉著使 用具有不同表面積之陶瓷粉末可達成不同密度之素胚未燒 製部份。譬如，用於形成第一零組件之陶瓷粉末表面積可 爲每克6 -1 0平方米，而用於形成第二零組件之陶瓷粉末表 面積可爲每克2 - 3平方米。該第一零組件中之細粉末造成 該素胚未燒製主體第一零組件具有一比由較粗糙粉末製成 之素胚未燒製第二零組件較小之密度“該第·零組件之素 胚未燒製密度典型係氧化鋁理論密度之百分之42-44(即每 立方米3.986克），且該第二零組件之素胚未燒製密度典型 係氧化鋁理論密度之百分之50-60。因爲該素胚未燒製第一一 零組件之密度小於該素胚未燒製第二零組件，於燒結期間 發生相對之收縮（例如百分之3 -10)，以形成一環繞該過渡 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -11 - ：—---------------— (請先閱讀背面之注意事項再填寫本頁) 478006 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（9) 部份之密封。於燒結之前組合該二零組件，該燒結步驟可 將該二零組件接合在一起以形成一放電室。 藉著在一耐火材料金屬型火爐中於約攝氏〇度至攝氏 + 1 5度之露點及攝氏1 85〇度下以氫氣加熱該素胚未燒製零 件達三至五小時即可進行該燒結步驟。在熱處理之後，該 零件係在約二小時期間冷卻至室溫。於該陶瓷粉末中包含 氧化鎂通常可防止晶粒尺寸增生至大於7 5米。其最終之陶 瓷包含一具有光學半透明性之密集燒結複晶氧化鋁。 根據另一接合方法，例如包含一耐火玻璃之玻璃原料 能放置於該第一及第二零組件之間以於加熱時將該二零組 件接合在一起。依據此方法，可於組合之前獨立地燒結該 零件。 在燒結之後，該第一及第二零組件每一個通常具有少 於或等於百分之0.1，最好少於百分之0.0 1之多孔性。多孔 性傳統上係定義爲一物件中由空隙所佔有總體積比率之無 個體數目。在百分之0 · 1或更少之多孔性下，該氧化鋁通常 具有一合適之光學透射比或半透明性。該透射比或半透明 性能定義爲“總透射比”，這是該放電室內一小型白熱燈之透 射光通量除以來自該裸露之小型白熱燈之透射光通量。在 百分之0.1或更少之多孔性下，該總透射比通常係百分之9 5 或更大。 根據另一示範之建造方法，藉著射出成型一混合物以 形成該放電室之零組件，該混合物包含體積百分比約45-60 之陶瓷材料及百分之55-40黏合劑。該陶瓷材料能包含一具 ^紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -12 - ;----------------------4| (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 478006 A7 B7 五、發明說明（10» 有每克約1.5至約30平方米、通常在每克3 - 5平方米間之 表面積之氧化銘粉末。根據一實施例，該氧化銘粉末具有 至少百分之99.98之純度。該氧化鋁粉末可摻雜有氧化鎂以 抑制晶粒增生，譬如其數量等於氧化銘之重量百分比0 · 〇 3 -0.2，最好百分之0.05。 該黏合劑可包含一鱲混合物或一聚合物之混合物。根 據一例子，該黏合劑包含： 重量百分比33α部份之石蠘，攝氏52〜58度之溶點； 重量百分比33α部份之石蠘，攝氏59〜63度之溶點； 重量百分比33α部份之石蠟，攝氏73〜80度之溶點； 以下物質可加至重量百分比1 00之石鱲： 重量百分比4部份之蜜蠘； 重量百分比8部份之油酸； 重量百分比3部份之硬脂酸鋁。 上述之石蠟可分別用來自奧德利奇（Aidnch)化學公司之第 3 1 7659,3272 1 2 及 41 1671 號產品。 於射出成型製程中，加熱陶瓷材料及黏合劑之混合物 以形成一高黏度混合物。然後該混合物射入一適當設計形 狀之模子內且隨後冷卻以形成一模鑄部份。 在射出成型之後，通常藉著熱處理由該模鑄部份移去 該黏合劑以形成一無黏合劑部份。可於空氣中或例如真空 、氮氣、稀有氣體之控制下環境中加熱該模鑄部份至一最 高溫度，然後保持在該最高溫度以施行該熱處理。譬如， 該溫度慢慢地由室溫每小時增加約攝氏2 - 3度至攝氏1 60 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -13- ；—-----.—^--------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 478006 A7 _Β7_ 五、發明說明（11) 度之溫度。其次，該溫度以每小時約攝氏1 〇〇度地增加至 攝氏900- 1 100度之最高溫度。最後，該溫度係維持在攝氏 900- 1 1 00度達約1 - 5小時。該部份隨後冷卻。在該熱處理 步驟之後，其多孔性係約百分之40-50。 通常於燒結之前組合該素胚未燒製零件以允許該燒結 步驟將該零件接合在一起。通常選擇用於形成該第一及第 二零組件之素胚未燒製零件密度，以於該燒結步驟期間達 成不同程度之收縮。藉著使用如上面所述具有不同表面積 之陶瓷粉末即可達成該素胚未燒製零件之不同密度。 根據一例子，由包含體積百分比48之氧化鋁及體積百 分比52之黏合劑之混合物形成一物件。該氧化鋁具有每克 3平方米之表面積及摻雜有數量達該氧化鋁之重量百分比 0.05之氧化鎂。使用上述之蠘黏合劑。當壓抵住新聞用紙 時，厚度約3毫米之物件係充分半透明，經由該物件可輕 易地閱讀該新聞用紙。 未偏離本發明之範圍及目的，對該領域中之人士將明 顯的是可使用其他方法，諸如加工尙未硬化或素胚未燒製 陶瓷、粉漿澆鑄、及溶膠凝膠處理以製造及接合用於陶瓷 放電燈之放電室。 以上述之一般製造及接合製程，或另一種製程，將參 考第2 -1 3圖敘述用於陶瓷放電燈之各種單一端的放電室。 譬如，第2及3圖說明具二零組件結構之單一端的陶瓷放 電室之第一及第二實施例。該第一零組件50包含一可如上 述加工或形成之壁凹52。該連續側壁54大致對該放電室之 $氏張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) -14 : ；—--------^--------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 478006 A7 B7 五、發明說明（θ 最後構造提供一圓柱形架構。第二零組件60分別包含由該 處延伸之第一及第二腿部62,64。爲了下文所述之理由’該 腿部係放置成大體而言平行之關係。他們由圓盤66向外延 伸，設計該圓盤之尺寸以承接在該第一零組件之側壁54內 。一旦燒結及接合在一起，該第一及第二零組件定義只有 一接頭之密封陶瓷弧放電室。 由於此幾何形狀之結果，該放電管之全長係遠比第1 圖所示兩端點裝置之全長較短。減少該燈全長之結果導致 更小巧之燈設計。此外，因爲二腿部62, 64由電弧放電室 之一端點伸出，該光線中心長度尺寸亦減少。這亦可達成 而未不利地影響該陶瓷至金屬之密封，因爲此密封可能在 其他方面由於藉著超高溫度所加速之有害化學反應而受損 。亦即每一腿部62, 64中之密封係放置在一遠離該室之位 置，在此該電弧或電漿係在一升高溫度下操作。額外之優 點亦由下文所述之本實施例及其他實施例而變明顯。特別 的是能達成更合適之光強分布。因爲現在提供該放電管之 一開放端點，故可獲得更多光通量及光強分布。在此電極 或腿部不再妨礙來自該電弧管之非腿部端之輻射能傳送。 該放電管之開放端點具有一較高之光學傳送性，以致減少 該放電管之輻射能及損失，及增加燈泡效能及色彩性能。 既然只使用單一接頭，能夠在單--循環中密封該電弧 管，藉此消除至今用於密封目的所需之製造步驟。以另一 種方式陳述，只有一同時燒結接頭之二件式電弧管裝置保 有該同時待審申請案所獲得之許多優點，同時另加入有利 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -15- : ----------------- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 478006 A7 __B7 五、發明說明（y 之特色。 又另一優點係慎重控制該弧隙尺寸之能力。該電極不 由電弧放電室之相向端點插入，諸如於先前技藝中極難以 控制想要弧隙之兩端式放電室。反之，第2圖中所示單一 端的放電管架構基於該陶瓷腿部之平行度定義該弧隙。如 將發現者’該配置係比先前技藝更易控制以達成一想要之 弧隙。 又另一考慮係該單一端的設計於燒結該零組件期間將 允許該電極密封進入該腿部。再者，所提出之單一端的放 電管幾何形狀不會將任何限制強加在該插塞或第二零組件 60之幾何形狀上。如在該同時待審申請案中所參考，這又 允許該插塞之形狀呈平坦、球形、圓柱形、或這些幾何形 狀之混合。藉著小心控制該電極之設計，可確保在該電極 表面上之無閃爍運作及穩定之電弧鎖定點位置。 第3圖說明一關於第2圖之修正，其中類似零組件將 以類似參考數字提及，且新的零組件將以新的結構特色識 別之。在此，該第二零組件或插塞包含一鄰接嚙合該第一 零組件側壁54之一終端72之肩部70。此鄰接關係相對該 陶瓷弧放電室之第一零組件50提供該插塞之一精確、正軸 向位置。 第4圖之示範之實施例稍微修改該第一零組件8〇 ’以 致其定義一具有肩部82之插塞，該肩部於該第二零組件之 延伸側壁8 4中提供插塞之正軸向位置。亦將注意的是該腿 部62,64分別具有往內伸入該放電室以達成更可靠之啓動及 ：—衣--------訂---------線 41^ (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -16- 經濟部智慧財產局員工消費合作社印製 478006 A7 B7 五、發明說明（14) 更穩定之運轉之部份86,88。 於第5圖中，一排氣管90係與該第一模鑄零組件或蓋 子插塞80 —體成形。這說明本設計之彈性及可有利地倂入 該陶瓷放電室設計之寬廣修改變化。 第6及7圖說明採用不同形狀之第一零組件或蓋子構 件之較佳實施例。於第6圖中，該蓋子構件1 〇〇具有一大 致圆顶形狀1 02 。如將發現者，沖模壓製或射出成形該構 件1 00以提供設有圓頂蓋子之單一端點放電燈設計。該周 圍之連續側壁平滑地轉移或融入成該彎曲或圓頂形狀。該 第二零組件60之一肩部70鄰接嚙合該第一零組件側壁之端 點邊緣，以於該零組件之間形成單一端接合。於第7圖中 ，該圓頂架構包含一整體鏡片1 04 。當然這可增強該光強 分布及導致所分佈之更多光通量，這是因一特定鏡片直接 製成該電弧管之設計結果。 該單一端的放電室設計之變化係顯示於第8及9圖中 。當最後組合時，將達成一具有小巧設計之單一端點陶瓷 金屬鹵化物燈。然而於該實施例中，該腿部110,1 12係以射 出成形分別製成腿部插塞零組件Π 4,1 1 6。該腿部插塞零組 件係大體而言完全相同，除了顛倒或鏡像之配對邊緣 1 1 8,1 20。這允許該腿部插塞零組件之一收縮及與該第二腿 部插塞零組件形成一燒結接頭。每一零組件包含一體成形 在其中之單一腿部，這相對每一零組件精確地定位該電極 。當組合在一起時，該腿部插塞零組件彼此配合以定義一 完整之單一端的陶瓷放電室，在此可精確地標出該二電極 ：—--------^--------- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -17- 經濟部智慧財產局員工消費合作fi印製 478006 A7 —一____B7___ 五、發明說明（β 間之弧隙尺寸。 第9圖之觀念係相當類似，但其包含一可譬如由壓出 主體1 22所形成之中心主體部份。雖然接頭數目增加，其 允許比方一壓出Lucalox或氧化鋁部份形成該中心主體部份 1 22。上述相同之燒結及接合步驟在該中心主體之相向二端 點達成所想要之接頭，而具有個別之腿部插塞零組件。假 如每一腿部插塞零組件114,116包含其尺寸可用以承接在該 壓出主體1 22之相向端點內之面朝外壁凹1 1 8，則亦有助於 組裝。 如上所述，藉著使用平行之腿部以於該電極之間獲得 精密之尺寸、亦已知爲該弧隙可達成某些優點。在另一方 面，第1 0及11圖說明故意使該二電極相對彼此形成某一角 度可提供之優點。譬如於第10圖中，模鑄腿部插塞主體零 組件130包含朝內形成某一角度之腿部1 3 2,1 34，這是指當 他們延伸朝向該放電室時。亦即該電極1 36,1 3 8係於該腿部 外端定位隔開一少於該導體1 40，1 42間尺寸之預定尺寸。這 配置防止在該放電室之一外面區域於該導線之間燃弧。既 然該導線間之距離大於該電弧室之外側，相對於該室內所 想要者，極不可能在該位置發生燃弧。 第1 1圖之較佳實施例亦包含該形成某一角度之電極設 計。其進一步說明可倂入該陶瓷弧放電室設計之其他特色 。在此，譬如該放電室內部包含彎曲之壁凹1 5〇, 1 52。如熟 練該技藝之人士將發現者，於某些選定情況中可能想要此 一陶瓷弧放電室架構。 ：——-------------- 4 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -18- 478006 A7 __ B7________ 五、發明說明（θ 第1 2及1 3圖說明上述特色之各種結合方式。譬如於第 12圖中，圓頂形蓋子160係用於結合具有彎曲內部壁凹164 之第二零組件1 62 。該腿部係仍然定義在該組合放電室之 一零組件中，以致獲得單一端的放電室之所有優點。在第 1 3圖中稍微修改其觀念，在此該腿部包含朝內伸入該放電 室之部份1 6 6，1 6 8。然而，大體而言於所有其他方面，第1 3 圖之實施例大體而言係類似第1 2圖者。 已參考示範實施例敘述本發明。當閱讀及了解該規格 時’其他人士將可做各種修改及變化。例如，可丨吏用美 專利第4，2 8 5，7 3 2號Z製程及合成材料以生產—與本發明有 關之光學半透明之氧化銘陶瓷。當此等修改及變化落在所 附申請專利或同等項之範圍內時，本發明意圓j含f舌之。 ；—*-------訂---------線赢 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 -19- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）478006 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (1) Background of the Invention Field of the Invention The present invention relates generally to lighting lamps, and more particularly to a ceramic arc discharge lamp. Discussion of the art A discharge lamp generates light by ionizing a charged substance such as a metal halide and a mercury mixture by an arc transmitted between two electrodes. The electrode and the charging substance are sealed in a semi-transparent or transparent discharge chamber which maintains the pressure of the charged charging substance and allows the emitted light to pass through it. It is also known that a "quantitative" charged substance emits a desired spectral energy distribution in response to the excitation of the arc. For example, a halide provides a spectral energy distribution exhibiting a wide selection of light properties, such as color temperature, color performance , And light efficiency. Ceramic discharge lamp rooms have been developed to operate at higher temperatures, that is, above 950 degrees Celsius, to improve color temperature, color performance, and light efficiency, and greatly reduce the reaction with the material. The discharge chamber is usually made of many components extruded or die-pressed from ceramic powder. Commonly owned and pending, U.S. Patent Application No. 09 / 067,8 1 6 filed on April 28, 1998 And U.S. Patent Application No. 09 / 250,634, filed February 16, 1,999, describes a conventional ceramic discharge cell type that minimizes the number of joints used to form the ceramic discharge cell. For example, previous experience The structure using five types of components, including a central cylinder that is closed at both ends by the first and second end plugs, generally makes the first and second legs; -------- ------------ (Please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -4-478006 Printed by A7 B7_______, a consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Description of the Invention (2) Located in the end plug. The reference application refers directly to the assembly using as few as 2020 components to form the ceramic discharge cell. Commercially available ceramic metal halide lamp products have all At least one feature in common. That is, each product has a discharge tube geometry, where the ceramic leg of the lead, the vacuum-tight ceramic-to-metal seal, and the electrode are located in the discharge body. Opposite ends. The standard two-end ceramic discharge tube geometry is described in Figure 1. However, there are examples of this geometry that cannot meet the requirements of a compact lamp structure. In this way, the total length of the lamp or the light is shortened It is impossible to increase the length of the center and the compactness of the lamp design. Shortening the length of the arc discharge tube in the standard two-end discharge tube geometry shown in Figure 1 is still not full Meet all industrial needs. Shortening the length of the discharge tube is limited by the highest temperature that the ceramic-to-metal seal at the end of the ceramic leg can withstand. Since the sealing glass ensures gas and vacuum tightness, the designer has been careful To avoid exposing the seal to elevated or ultra-high temperatures that can adversely affect the sealing glass. Also as described in the reference pending concurrent application, limiting the number of components in the arc tube and the same restrictions The number of joints leads to the desired efficiency and reduced manufacturing costs. In this way, eliminating the manufacturing steps, components, and achieving the improvement in conductivity and radiant heat loss with higher and higher light efficiency are all characteristics that I want Better control of arc gap length results in flicker-free operation, more reliable startup, more stable operation, and increased lighting and color performance. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 public love) -5- — II 1 / ----------- ^ ------------ 1 (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 478006 A7 I —__ B7 V. Description of the Invention (3) Invention: A ceramic discharge lamp contains a Ceramic enclosure for discharge chambers of plutonium. The first and second electrodes are placed in the chamber in a spaced relationship to generate an arc in response to a potential applied across the electrode. The electrodes are placed relative to each other in a non-axial relationship. In one exemplary embodiment of the present invention, the electrode of the ceramic discharge lamp is defined by Zhuo Yi ', and the arc camp, that is, the reading electrode extends from the same end of the arc tube into the chamber. Another preferred example of the present invention is Embodiments provide a dome-shaped end point and selectively insert a monolithic lens therein. Yet another exemplary embodiment bends the electrodes toward each other so that the dimensions between the first endpoints placed inside the room are closer together than the second endpoints placed outside the room. Brief Description of the Drawings Figure 1 illustrates a lamp assembly of a ceramic discharge chamber with prior art. Figures 2 to 13 are enlarged views of various ceramic arc discharge cells according to an exemplary embodiment of the present invention. Comparison table of main components 20 Discharge lamp 22 Discharge slaughter '24 No. — electrode 2 6 No. electrode This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) -6---------- 1 -------------------- —ill (Please read the precautions on the back before filling this page) 478006 A7 B7 V. Description of Invention (4) Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau's Consumer Cooperative 28 First conductor 30 Second conductor 32 Central body portion 34 First leg 36 Second leg 50 First component 52 Wall recess 54 Side wall 60 Second component / plug 62 First Leg 64 Second leg 66 End wall 70 Shoulder 72 End 80 First component / plug 82 Shoulder 84 Side wall / second component 86 Leg extension 88 Leg extension 90 Exhaust pipe 100 Cover member 102 Dome structure 104 Lens I 10 笫 · Μ 部 -Unplugging roll »—-------- ^ --------- (璜 Read the precautions on the back before filling in this Bing) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -7- Employees of Intellectual Property Bureau of the Ministry of Economic Affairs 8: Printed by Zuosha 4 78006 A7 __B7_ V. Description of the invention (5) 112 Second leg-plug component 1 Η Shoulder 116 Shoulder 120 Central body portion 130 Second component 132 First leg 1 3 ^ 1 Second leg 136 first electrode 13 8th electrode 140 first conductor 142 second conductor 150 recessed / curved wall recessed 152 recessed / curved wall recessed 160 dome cover 162th component 164 curved wall recessed 166 leg extension Part 168 Detailed description of the invention of the leg extension. Figure 1 illustrates a prior art ceramic discharge lamp 20 including a two-terminal discharge cell 22 which includes first and second electrodes 24, 26 and a closed-to-ground Charged substances contained in this discharge case. The m-poles 24 and 26 are connected to the dry conductors 28 and 30. A potential is applied across the electrode in a manner well known in the art. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm): —-------- Order —------- line (please read the notes on the back before filling this page) 478006 A7 B7 V. Description of the invention (6) (Please read the notes on the back first Fill out this page again) Poor. In operation, the electrode generates an arc that ionizes the charged substance, so that a plasma is generated in the discharge chamber. For ceramic metal halide lamps, the halogen-filling substance typically contains a mixture of mercury, a rare gas such as argon or xenon, and a metal halide such as Nal, Tll, or Dyh. Examples of other filling materials are well known in the art. The discharge chamber includes a central cylindrical body portion 32 and first and second legs 34,36. The electrode is connected to a power source (not shown) through a conductor. The electrode is typically made of tungsten, and the conductive system of niobium and molybdenum, because its thermal expansion coefficient is similar to that of aluminum, to reduce the thermal stress caused on the alumina leg. The discharge chamber is sealed at opposite ends identified by reference numerals 40,42. The seal is preferably a rhenium-aluminum-silica glass frit that is carried around the conductor, and when melted, the glass flows into the leg to form a seal between the conductor and the leg. The size of the legs is selected to reduce the temperature of the seal by a desired amount relative to the elevated temperature of the discharge cell. As will be noticed, the axial position of the electrode affects the pressure drop across the electrode, and this pressure drop can have a significant effect on the quality of the light produced. As such, it is important to control the axial position of the leg, as it affects the spacing between the electrodes. As taught in the simultaneous pending application shown above, what I want is to reduce the number of components that contain the discharge cell to reduce the number of joints between the components. This has the advantage of facilitating assembly of the discharge cell during manufacturing and reducing potential joint defects, and reduces the possibility of damage to the joint chamber during the processing period. The component is preferably made by pressing a mixture of ceramic powder and a binder by a die. For example, the mixture contains -9- this paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 478006 A7 '_B7 __.___ V. Description of the invention (7) Percentage 9 5-9 8 ceramic powder And 2-5 weight percent organic binder. The ceramic powder may include alumina having a purity of 99.98 percent and a surface area of about 2-10 square meters per gram. The alumina powder may be doped with magnesium oxide to prevent grain growth, and the amount is, for example, equal to 0.03-0.2% by weight of alumina, and preferably 0.05. Other j |: j ceramic materials include non-reactive refractory oxides and nitrogen oxides, such as yttrium oxide, distillate, and hafnium oxide, and solid solutions and compounds with alumina, such as yttrium aluminum-garnet And aluminum oxide. Binders that can be used individually or in combination include organic polymers such as polyols, polyvinyl alcohols, vinyl acetate, acrylates, cellulose, and polyesters. Exemplary ingredients that have been used in die pressing for a solid cylinder include 97 weight percent alumina powder with a surface area of about 7 square meters per gram, available from Baikowsh International Co., Ltd., in Charlotte, South Carolina. CR7 product. The alumina powder is doped with magnesium oxide in an amount of 0.1% by weight based on the alumina. This ingredient also contains 2.5% by weight of polyvinyl alcohol, can use 115_〇09-〇18 products from General Lighting Company and the amount of 1/2 (0.5) containing longitudinal wax ((: ^ 〇 ^^ 1 〇600 & OK) 丨 1 Product from Interstate Chemical Co. After the die is pressed, the adhesive is typically removed from the unhardened portion of the cymbal by pyrolysis to form a prime unburned portion The pyrolysis can be performed, for example, by heating the unhardened part of the pupae in the air at a maximum temperature of about 900 to 1100 degrees Celsius at 4-8 mini-poetry periods, and then maintaining the maximum temperature. For 1 to 5 hours, and then cooling the part. After pyrolysis, the porosity of the unburned part of the prime embryo is typically about 4% ϋ-5 () This paper size applies Chinese national standards (CSs) A4 specification (210 X 297 public) ~ | 〇 ~ " ~ ---------- ΊΙΛΨ (Please read the precautions on the back before filling this page) Order --- the wisdom of the Ministry of Economic Affairs Printed by the Consumer Cooperative of the Property Bureau Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 478006 A7 B7 V. Invention Description (8) 〇 Then the machine The glutinous rice is burned. For example, a small hole is drilled along the axis of the core cylinder to provide a hole in the first leg. Secondly, a drill can be drilled along a part of the shaft. A large-diameter hole to form the chamber. Finally, the exterior of the original solid chamber can be machined along the axial portion, such as with a lathe, to form the outer surface of the first leg. By drilling a small hole first The second leg member can be formed in a similar manner by providing a hole through the leg, machining the outside of the original solid cylinder to create the leg, and machining the transition portion, leaving the radial flange. The processed parts are usually combined together before sintering to allow the sintering step to join the parts together. According to an exemplary joining method, the unprimed embryos used to form the body member and the leg are selected. Partial density to achieve different degrees of shrinkage during the sintering step. By using ceramic powders with different surface areas, unfired parts of different densities can be achieved. For example, ceramics used to form the first component Powder surface area can be Grams of 6-10 square meters, and the surface area of the ceramic powder used to form the second component may be 2-3 square meters per gram. The fine powder in the first component causes the unburned body to be the first zero The module has a lower density than the unburned second component made of a coarser powder. The unburned density of the first component is typically 42-44% of the theoretical density of alumina. (Ie, 3.986 grams per cubic meter), and the unburned density of the second component is typically 50-60% of the theoretical density of alumina. Because the unburned density of the first component is not burned Less than the unfired second component, the relative shrinkage (such as 3-10%) occurs during sintering to form a transition around this transition. This paper is compliant with China National Standard (CNS) A4 (210 X 297 mm) -11-: ----------------- (Please read the notes on the back before filling out this page) 478006 Printed by A7, Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs B7 V. Seal of part (9) of the description of the invention. The 2020 component is assembled before sintering, and the sintering step joins the 2020 component together to form a discharge cell. The sintering step can be performed by heating the unburned part of the green embryo with hydrogen at a dew point of about 0 ° C to + 15 ° C and a temperature of 1850 ° C in a refractory metal type furnace for three to five hours. . After the heat treatment, the part was cooled to room temperature over a period of about two hours. The inclusion of magnesium oxide in the ceramic powder generally prevents the grain size from growing to greater than 75 meters. The final ceramic contains a densely sintered polycrystalline alumina with optical translucency. According to another joining method, for example, a glass raw material including a refractory glass can be placed between the first and second components to join the 2020 components together when heated. According to this method, the part can be independently sintered before assembly. After sintering, each of the first and second components typically has a porosity of less than or equal to 0.1 percent, and preferably less than 0.01 percent. Porosity has traditionally been defined as the number of individuals in an object that is the proportion of the total volume occupied by voids. With a porosity of 0.1% or less, the alumina usually has a suitable optical transmittance or translucency. The transmittance or translucency is defined as "total transmittance", which is the transmitted light flux of a small incandescent lamp in the discharge chamber divided by the transmitted light flux of the bare small incandescent lamp. With a porosity of 0.1 percent or less, the total transmittance is usually 95 percent or greater. According to another exemplary construction method, a mixture is formed by injection molding to form components of the discharge cell. The mixture includes a ceramic material with a volume percentage of about 45-60 and a binder of 55-40%. The ceramic material can contain a ^ paper size applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) -12-; -------------------- --4 | (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 478006 A7 B7 V. Description of the invention (10 »There are about 1.5 to about 30 square meters per gram, usually in Oxide powder with a surface area between 3 and 5 square meters per gram. According to one embodiment, the oxide powder has a purity of at least 99.98 percent. The alumina powder may be doped with magnesium oxide to inhibit grain growth, such as The amount is equal to the weight percentage of oxidized oxide. 0 · 03-0.2, preferably 0.05%. The adhesive may include a mixture of polymers or a polymer. According to an example, the adhesive includes: 33% by weight Part of stone maggot, melting point of 52 ~ 58 degrees Celsius; part of 33α weight percent of stone maggot, melting point of 59 ~ 63 degrees Celsius; weight percentage of 33α part of paraffin, 73 ~ 80 degrees Celsius melting point; Substance can be added up to 100% by weight: Stone honey with 4 parts by weight 8 parts by weight of oleic acid; 3 parts by weight of aluminum stearate. The above paraffin can be used from Aidnch Chemical Company No. 3 1 7659, 3272 1 2 and 41 1671 respectively Product. In the injection molding process, the mixture of ceramic material and adhesive is heated to form a high viscosity mixture. The mixture is then injected into a suitably designed mold and then cooled to form a molded part. After injection molding The adhesive is usually removed from the die-casting part by heat treatment to form an adhesive-free part. The die-casting part can be heated to a temperature in the air or in an environment controlled by, for example, vacuum, nitrogen, or a rare gas. The maximum temperature is then maintained at the maximum temperature to perform the heat treatment. For example, the temperature is slowly increased from room temperature by about 2-3 degrees Celsius to 1 60 degrees Celsius per hour. This paper size applies the Chinese National Standard (CNS) A4 specification ( 210 X 297 mm) -13-; —-----.— ^ --------- (Please read the notes on the back before filling out this page) 478006 A7 _Β7_ 2. Description of the invention (11) Degrees of temperature. Secondly, the temperature is increased to about 1000-1,100 degrees Celsius at about 1000 degrees per hour. Finally, the temperature is maintained at 900-1,100 degrees Celsius. For about 1 to 5 hours. The part is then cooled. After the heat treatment step, its porosity is about 40-50 percent. The unburned parts of the green embryo are usually combined before sintering to allow the sintering step to The parts are joined together. The density of the unfired parts used to form the first and second components is usually selected to achieve different degrees of shrinkage during the sintering step. By using ceramic powders with different surface areas as described above, different densities of the unfired parts of the embryo can be achieved. According to an example, an object is formed from a mixture comprising 48 volume percent alumina and 52 volume percent binder. The alumina has a surface area of 3 square meters per gram and is doped with magnesium oxide in an amount of 0.05% by weight of the alumina. Use the above-mentioned tincture adhesive. When pressed against the newsprint, an object with a thickness of about 3 mm is sufficiently translucent, and the newsprint can be easily read through the object. Without departing from the scope and purpose of the present invention, it will be apparent to those skilled in the art that other methods may be used, such as processing of unhardened or unboiled ceramics, slurry casting, and sol-gel processing for fabrication and bonding For the discharge chamber of ceramic discharge lamps. Based on the above-mentioned general manufacturing and joining process, or another process, various single-end discharge cells for ceramic discharge lamps will be described with reference to Figs. 2-13. For example, Figures 2 and 3 illustrate the first and second embodiments of a ceramic discharge chamber with a single end of a 2020 module structure. The first component 50 includes a recess 52 that can be processed or formed as described above. The continuous side wall 54 approximately applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) to the $ 's Zhang dimension of the discharge cell. -14:; -------- ^ ------ --- (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 478006 A7 B7 V. Description of the invention (θ The final structure provides a cylindrical structure. The second component 60 contains each The first and second legs 62, 64 extend there. For the reasons described below, 'the legs are placed in a generally parallel relationship. They extend outward from the disk 66 and design the disk. Dimensions are received in the side wall 54 of the first component. Once sintered and joined together, the first and second components define a sealed ceramic arc discharge cell with only one joint. As a result of this geometry, the discharge tube The full length is much shorter than that of the two-point device shown in Figure 1. Reducing the total length of the lamp results in a more compact lamp design. In addition, because the two legs 62, 64 protrude from one end of the arc discharge chamber , The length of the center of the light is also reduced. This can also be achieved without This adversely affects the ceramic-to-metal seal because this seal may otherwise be damaged due to harmful chemical reactions accelerated by ultra-high temperatures. That is, the seal in each leg 62, 64 is placed away from The location of the chamber, where the arc or plasma is operated at an elevated temperature. Additional advantages are also apparent from this and other embodiments described below. In particular, a more suitable light can be achieved Strong distribution. Because one open end point of the discharge tube is now provided, more luminous flux and light intensity distribution can be obtained. Here the electrode or leg no longer obstructs the transmission of radiant energy from the non-leg end of the arc tube. The open end of the discharge tube has a high optical transmission, so as to reduce the radiant energy and loss of the discharge tube, and increase the bulb performance and color performance. Since only a single connector is used, the arc can be sealed in a single cycle Tube, thereby eliminating the manufacturing steps required to date for sealing purposes. Stated another way, only a simultaneous two-piece arc tube device with sintered joints holds the pending application Many advantages obtained, and at the same time, the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -15-: ----------------- ( Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 478006 A7 __B7 V. Description of the invention (the characteristics of y. Another advantage is the ability to carefully control the size of the arc gap. The electrode Instead of inserting from the opposite end of the arc discharge chamber, it is extremely difficult to control the two-end discharge chamber that requires an arc gap in the prior art. Conversely, the single-end discharge tube structure shown in Figure 2 is based on the parallelism of the ceramic legs Define the arc gap. If the discoverer's configuration is easier to control than previous techniques to achieve a desired arc gap. Yet another consideration is that the single-ended design will allow the electrode to seal into the leg during sintering of the component. Furthermore, the proposed single-ended discharge tube geometry does not impose any restrictions on the geometry of the plug or the second component 60. As referenced in the co-pending application, this in turn allows the shape of the plug to be flat, spherical, cylindrical, or a mixture of these geometries. By carefully controlling the design of the electrode, it is possible to ensure a flicker-free operation on the electrode surface and a stable arc lock point position. Figure 3 illustrates a modification to Figure 2, in which similar components will be mentioned with similar reference numbers, and new components will be identified with new structural features. Here, the second component or plug includes a shoulder 70 that abuts a terminal 72 of the side wall 54 of the first component. This abutting relationship provides an accurate, positive axial position of the plug relative to the first component 50 of the ceramic arc discharge cell. The exemplary embodiment of FIG. 4 slightly modifies the first component 80 ′ so that it defines a plug with a shoulder 82 that provides the positiveness of the plug in the extended side wall 84 of the second component. Axial position. It will also be noted that the legs 62, 64 respectively have inward extensions into the discharge chamber to achieve a more reliable start-up and:-clothing ----- order --------- line 41 ^ (Please read the notes on the back before filling out this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -16- Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 478006 A7 B7 5 Explanation of the invention (14) Part 86, 88 for more stable operation. In FIG. 5, an exhaust pipe 90 is integrally formed with the first die-cast component or the plug 80 of the cover. This illustrates the flexibility of this design and the wide range of modifications that can be incorporated into this ceramic discharge cell design. Figures 6 and 7 illustrate a preferred embodiment using a first component or lid member of a different shape. In FIG. 6, the cover member 100 has a large dome shape 102. If it is to be found, the die is pressed or injection molded to provide a single end discharge lamp design with a dome cover. The continuous side walls of the perimeter smoothly transfer or blend into the curved or domed shape. One of the shoulders 70 of the twentieth component 60 abuts the edge of the end point that engages the side wall of the first component to form a single end joint between the components. In FIG. 7, the dome structure includes an integral lens 10 04. This, of course, can enhance the light intensity distribution and result in more light flux being distributed, as a result of the design of a particular lens directly made into the arc tube. The single-end discharge cell design changes are shown in Figures 8 and 9. When finally combined, a single-ended ceramic metal halide lamp with a compact design will be achieved. However, in this embodiment, the leg portions 110, 111 and 12 are respectively formed into leg plug components Π 4,1 1 6 by injection molding. The leg plug components are generally identical except for the mating edges 1 1 8, 1 20 which are inverted or mirrored. This allows one of the leg plug components to contract and form a sintered joint with the second leg plug component. Each component includes a single leg integrally formed therein, which accurately positions the electrode relative to each component. When combined, the leg plug components cooperate with each other to define a complete single-end ceramic discharge cell, where the two electrodes can be accurately labeled: ---------- ^ ---- ----- (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) System 478006 A7 — A ____B7___ V. Description of the invention (the size of the arc gap between β. The concept of Figure 9 is quite similar, but it includes a central body part that can be formed by pressing the body 1 22, for example. Although the joint The number is increased, which allows, for example, one to press out the Lucalox or alumina part to form the central body part 1 22. The same sintering and joining steps described above achieve the desired joint at the opposite ends of the central body, with individual Leg plug components. If each leg plug component 114,116 includes a size that can be recessed 1 1 8 facing the outer wall within the opposite end of the pressing body 1 22, it also helps Assembly. As mentioned above, by using parallel legs For obtaining precise dimensions between the electrodes, it is also known that the arc gap can achieve certain advantages. On the other hand, Figures 10 and 11 illustrate that the two electrodes are intentionally formed at an angle to each other. Advantages. For example, in Figure 10, the molded leg plug body component 130 includes legs 1 3 2, 1 34 that form an angle inward, which means when they extend toward the discharge cell. That is, The electrodes 1 36, 1 3 8 are positioned at the outer end of the leg and spaced a predetermined size smaller than the size of the conductor 1 40, 1 42. This configuration prevents the area between one of the discharge cells and the conductor from being outside the area Arcing. Since the distance between the wires is greater than the outer side of the arc chamber, it is extremely unlikely that an arcing will occur at that location relative to what is desired in the chamber. The preferred embodiment of Figure 11 also includes the formation of a certain Angled electrode design. It further explains that it can be incorporated into other features of the ceramic arc discharge chamber design. Here, for example, the interior of the discharge chamber contains a curved wall recess 1 50, 1 52. Those skilled in the art will find , This ceramic arc may be desired in some selected cases The structure of the discharge chamber. ————------------ 4 (Please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -18- 478006 A7 __ B7________ V. Description of the invention (θ Figures 12 and 13 illustrate the various combinations of the above features. For example, in Figure 12, the dome-shaped cover 160 is used to combine with bending The second component 1 62 of the internal recess 164. The leg system is still defined in one of the components of the combined discharge cell, so that all the advantages of a single-ended discharge cell are obtained. The concept is slightly modified in Figure 13 where the legs include portions 166, 168 that extend into the discharge chamber inward. However, in all other respects, the embodiment of FIG. 13 is generally similar to that of FIG. 12. The invention has been described with reference to the exemplary embodiments. When reading and understanding the specification, ‘other people will be able to make various modifications and changes. For example, U.S. Patent No. 4, 2 8 5, 7 3 2 Z process and synthetic materials can be used to produce the optically translucent oxide ceramics related to the present invention. When such modifications and changes fall within the scope of the attached patent application or equivalent, the meaning of the present invention is inclusive. ;-* ------- Order --------- Line Win (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -19- This paper Standards apply to China National Standard (CNS) A4 (210 X 297 mm)