201017712 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種具有燈泡的電燈，燈泡包括：點燃區， 其中至少一電極延伸著；以及一連接至該點燃區之燈泡 頸’其中埋置著至少一與電極相連接的電流供應裝置，其 由燈泡頸中向外延伸。此外，本發明亦涉及一種電燈的製 造方法。 【先前技術】 v 同時硏發功率通常很大的放電燈和鹵素燈且燈的大小保 持相同或甚至縮小或使發光體中的冷卻作用下降，這樣會 使各構件受到很大的熱負載。此種燈中導引電流用的一般 組件例如是由鉬構成，鉬在溫度大約超過3 5 (TC時開始氧 化。例如，由於具有電流承載銷和電流承載箔的系統埋置 於燈泡頸的石英玻璃中，則對體積較大的氧化鉬而言已無 擴大的空間。這樣會由於軸跳躍而使燈提早故障或甚至造 φ 成燈的***現象。 由DE 699 27 574 T2中已知一種電燈，其中在外部的電流 導體和與該電流導體相連接的電流承載箔上形成一種保護 層。此保護層只形成一種4微米至6微米的薄層且例如由鉻 所構成。由於在燈泡頸的內壁、和電流承載箔的一些部份 以及向外延伸的電流承載銷之間所形成的毛細管，則該保 護層必須在電流承載銷之整個長度上延伸且亦必須在該電 流承載箔之裸露的部份區域上延伸。 201017712 本料 成材 在的 口 ΠΠ 力 芹 施時 的生 層產 護層 保護 該保 ’ 該 外於 此由 。 法 事方 費的 較用 加加 施施 的該 層且 護貴 保較 該亦 上 而亦會對健康有害。又，該保護層必須在熔合至該電流承 載箔和電流承載銷之前施加完成。 然而，由於該文件中只有在熔合過程期間才會在燈泡頸 之內壁、和電流承載箔、電流承載銷以及施加在該箔和該 銷上的層之間形成毛細管，則較不易預見-且通常亦不能預 I 見”藉由該層是否可在該熔合過程之後產生一種足夠的氧化 Ο 保護作用”。由於在此種熔合過程中該層材料同樣會熔化， 則不能預測是否能更確定地產生所期望的足夠的氧化保護 作用。 【發明內容】 本發明的目的是提供一種電燈及此種電燈之製造方法， 可使電燈中承載電流的部份之氧化保護作用獲得改良且不 需很費事即可達成此目的。 © 上述目的藉由一種具有申請專利範圍第1項特徵的電燈 和一種具有申請專利範圍第12項特徵的方法來達成。 本發明的電燈包括一燈泡，其具有一點燃區，此點燃區 中至少有一電極延伸著。此外，此電燈之燈泡包括至少一 連接至該點燃區之燈泡頸，其中埋置著至少一與該電極相 連接的電流供應裝置，其由燈泡頸向外延伸。在燈泡頸之 遠離該點燃區之末端上形成一末端側之中空區，此中空區 中至少一部份以密封用的玻璃焊劑來塡入。 201017712 就上述電燈的佈置而言’電流供應裝置之延伸至燈泡中 的部份之氧化保護作用可獲得改良。在與先前技術比較 下，一種同樣有效的氧化保護作用可以簡單很多-且成本更 有利的方式來達成。此外’可避免使用一些對環境有害的 材料且施加玻璃焊劑時不需複雜之額外步驟。 所謂電極例如是指放電燈的陽極和陰極。同樣’亦能以 電極的槪念來了解白熾燈（特別是鹵素白熾燈）的白熾燈絲。 特別是電流供應裝置藉由燈泡頸之材料被熔合及/或壓榨 ® 在適當的位置上而埋置於燈泡頸中。特別有利的是，燈泡 頸之末端側上所形成的中空區只有在該埋置過程之後才可 以玻璃焊劑來塡入。因此，與先前技術不一樣，在熔合過 程之前已不需在電流供應裝置上進行一種塗層過程，且在 隨後的熔合過程中亦不必將熔合用的塗層分佈在所期望的 位置上。在本發明有利的執行中，在壓榨過程已結束以及 該中空區的幾何佈置已知且不再改變時，則玻璃焊劑的施 Φ 加可很明確且準確地進行。 中空區之介於燈泡頸之內壁和電流供應裝置之外側之間 的空出區在垂直於電流供應裝置之縱向來觀看時較佳是完 全由玻璃焊劑來塡滿。像先前技術中所產生的大的中空區 因此不會發生。不期望的薄的位置會使氧侵入的危險性高 出很多，在先前技術中甚至設有此種薄的位置。本發明中 此種薄的位置不會發生。特別是在徑向中觀看時，該中空 區中完全以玻璃焊劑來塡入。 201017712 該中空區較佳是只形成在燈泡頸之壓榨區之遠離該點燃 區之此側上。在燈泡頸之縱向中-且因此亦是在電流供應裝 置的縱向中觀看時，縱向中以較短的長度而延伸的中空區 之至少一部份已有塡料時即足夠以較不費事且成本較有利 的方式來確保一種較佳的氧化保護作用。此外，藉由該中 空區之特定的位置亦可較簡易且較不費事地施加該玻璃焊 劑。 該中空區之長度以及內部末端較佳是藉由該壓榨區之遠 離該點燃區之末端來限制。 玻璃焊劑之厚度且特別是徑向中的範圍較佳是大於電流 供應裝置之電流承載銷之徑向尺寸。特別是玻璃焊劑的厚 度至少是電流供應裝置之電流承載銷之半徑之二倍。因 此，玻璃焊劑之徑向尺寸較佳是較電流供應裝置之電流承 載銷之半徑大很多。特別是在電流承載銷之區域中電流供 應裝置之周圍是由玻璃焊劑所圍繞著。 電流承載銷之外側和燈泡頸之界定該中空區用的內壁之 間的徑向距離較佳是較該電流承載銷之外側和中空區的外 部之燈泡頸之內壁之間的距離大很多。特別是在該燈泡頸 冷卻期間和將各組件熔合至燈泡頸中時該中空區不是一種 已形成的空氣區而是特別藉由該管形的燈泡頸之中空的末 端區來形成。這特別是與具有管形的燈泡頸之放電燈有 關。在鹵素白熾燈中，該中空區的形成是在壓榨過程中發 生，其形成小的凹入區而發生在電流承載銷周圍。 .201017712 玻璃焊劑特別是以軟木塞的形式而形成且由於中空區的 造型而須適當地設定尺寸。 該中空區的直徑亦是該中空區中軟木塞形式的玻璃焊劑 之直徑，此直徑大於該位置上之電流供應裝置之電流承載 銷之直徑，特別是至少二倍大。這特別適用於具有管形燈 泡頸之放電燈。然而，在鹵素白熾燈中亦可形成適當的中 空區。 特別有利的是在保護氣體的大氣下將玻璃焊劑施加至該 中空區中。例如，可設有氬以作爲保護氣體。藉由此種方 式，則已存在的氧可特別有效地排出且在施加該玻璃焊劑 時可防止氧的進入。因此，氧化保護作用可進一步獲得改 進。特別是在施加該玻璃焊劑時可防止不期望的氧的侵入。 該電流供應裝置包括一種電流承載箔，其完全埋入至燈 泡頸中且與電極相連接。此外，該電流供應裝置包括一電 流承載銷，其與燈泡頸內部中的電流承載箔相連接且在燈 • 泡頸之中空區上由燈泡頸向外延伸而出。玻璃焊劑在電流 供應裝置之縱向中觀看時是與電流承載箔和電流承載銷之 間的連接區互相隔開而不相接觸。因此，玻璃焊劑較佳是 在周圍側只圍繞著電流承載銷而形成。電流承載箱因此在 無玻璃焊劑的情況下配置在燈泡頸中。電流承載箔和電流 承載銷之間的連接區特別是一種焊接區，其因此未與連接 用的材料相接觸。 於是，可簡易很多地且較不費事地施加該玻璃焊劑，此 .201017712 乃因特別是由於電流承載箔和電流承載銷之不同的造型而 使先前技術中塗層的施加很困難。在本發明的有利的佈置 中，在此種敏感的區域中已不需設置玻璃焊劑。 玻璃焊劑的軟化點較佳是在溫度大於400°C時發生，特別 是大於500°C或600°C時發生，特別有利的情況是大於1000 t時才發生。 玻璃焊劑較佳是一種可結晶的玻璃焊劑。玻璃焊劑亦可 以是一種合成的玻璃焊劑。當玻璃焊劑未添加鉛而以無鉛 ❿ 的形式來形成時較佳。 電流供應裝置較佳是至少一部份塗佈著一種氧化保護 層。特別是一配屬於電流供應裝置之電流承載銷至少一部 份塗佈著鉻及/或鉑及/或金及/或鋁及/或锆及/或玻璃焊劑 以作爲氧化保護材料。此種佈置方式可在大量製造時實 現，這樣亦可達成一種成本有利的製造。熔合至燈泡頸中 且配屬於電流供應裝置的電流承載箔是與電流承載銷相連 0 接且特別是可在此種佈置中加工而不必另外塗佈一種氧化 保護層。然而，該電流承載箔的至少一部份亦可另外塗佈 著鉻及/或鉑及/或金及/或鋁及/或銷及/或玻璃焊劑以作爲 氧化保護用。 電流承載箔之鉬用的氧化保護層因此超過密封區而到達 電燈的基座之區域中。 電流承載箔較佳是在鹵素白熾燈中設有另一塗層。此電 流承載箔之至少一部份（其與燈泡頸之以玻璃焊劑來密封的 -10- 201017712 開口相面對）較佳是設有此一塗層。 在燈泡頸上的末端側較佳是配置一基座，其至少一部份 由氧化保護材料所形成。就此而言，可在燈泡頸上、電流 供應組件上和末端的基座上確保該氧化保護作用。特別是 在由金屬構成的基座中，使用一種抗氧化的材料或相對應 的塗層時特別有利。例如，可使用由不銹鋼所構成的基座 以取代一般已鎳化的合金。此處，較佳是亦可設置一種由 鉻及/或舶及/或金及/或鋁及/或锆所構成的塗層以作爲基座 的氧化保護層。藉由基座的此種佈置方式，則氧化保護作 用可擴展至整個燈。 電燈可以是在單側或二側設有基座的燈。玻璃焊劑的施 加較佳是可在一種保護氣體的大氣下進行。 在玻璃焊劑之遠離該點燃區之區域上較佳是形成一種防 止氧進入用的保護層，使氧不能進入至該電流供應裝置之 延伸至燈泡頸中的部份。藉由此種額外的保護層，則可達 φ 成最後的密封’這樣可使氧化保護作用進一步獲得改良。 此一額外的層之材料是一種與玻璃焊劑不同的材料。 防止氧進入用的保護層較佳是形成在玻璃焊劑之遠離該 燈泡頸的點燃區之區域上。因此，較佳是形成一種位於外 側的防止氧進入用的保護層。此一保護層之安裝位置可簡 易且不費事地完成且可確保對氧的進入有較佳的防止作 玻璃焊劑和該防止氧進入用的保護層較佳是由不同的材 -11- 201017712 料來形成。特別是該保護層形成在玻璃焊劑之由中空區突 出的區域上。藉由上述的佈置方式，則該保護層的平面範 圍和層厚度可簡單地改變及最佳化。 防止氧進入該電流供應裝置用的保護層較佳是直接形成 在玻璃焊劑上。在該保護層和玻璃焊劑之間未配置其它材 料或其它層。然而，原則上該保護層和玻璃焊劑亦可不直 接相鄰地安裝著，此時在該保護層和玻璃焊劑之間可形成 中間層。 ❹ 防止氧進入用的保護層較佳是至少在成份上包括聚醯胺 (Polimide)。同樣，此保護層至少在成份上亦可包括一種陶 瓷纖維材料。例如，此處可使用UBE工業公司的材料Tyr anno Coat。同理，該保護層亦可以是一種陶瓷黏合材料。 該保護層較佳是由一種直至溫度500。(：爲止仍然穩定的 材料來形成。 燈泡較佳是具有至少二個燈泡頸，其相面對而延伸至該 ❿ 點燃區上。 在本發明的電燈之製造方法中，至少一電極至少以區域 方式延伸至燈泡之點燃區中以及至少以區域方式延伸至一 與該點燃區相連接的燈泡頸中且與電流供應裝置一起以區 域方式而埋置於該燈泡頸中，該電流供應裝置由燈泡頸向 外延伸。燈泡頸中形成一個位於末端側的中空區，此中空 區中至少以區域方式而以一種密封用的玻璃焊劑來塡入， 以便使該電流供應裝置之延伸至燈泡頸中之部份獲得氧化 -12- 201017712 保護作用。藉由此種製造方法，則可較不費事且成本有利 地達成較佳的氧化保護作用。在本方法的製程中，藉由所 選取的材料，則在與使用鉻時相比較下對環境的負載可忽 略。 該電流供應裝置之延伸至燈泡頸中之部份以及該電極之 延伸至燈泡頸中之部份較佳是藉由燈泡頸之材料的熔合及/ 或壓榨而埋置於燈泡頸中。只有在電流供應裝置和該電極 以區域方式埋置於燈泡頸中之後該玻璃焊劑才施加至中空 ® 區中。在該埋置過程之後的步驟中施加該玻璃焊劑，這樣 可較適當地且確定地安裝該玻璃焊劑。於是，氧化保護作 用可大大地獲得改良。 較佳是施加該玻璃焊劑，使該中空區之在燈泡頸之內壁 和電流供應裝置之外側之間所形成的空出區在一種垂直於 該電流供應裝置之縱軸的方向中觀看時完全以玻璃焊劑來 塡入。 @ 整個中空區較佳是以玻璃焊劑來塡入。這樣可避免較大 的空氣區，且至少可使氧的進入量大大地下降。 該中空區較佳是只形成在該壓榨區之遠離該點燃區之此 側上。於是，只有較小的體積至少以區域方式被塡入該玻 璃焊劑。這樣可較容易地施加該玻璃焊劑，於是可施加足 夠的玻璃焊劑使氧化保護作用獲得改良。 玻璃焊劑以特別有利的方式在保護氣體的大氣下施加至 該中空區中。 -13- 201017712 已顯示特別有利的是，藉由該玻璃焊劑，則在溫度5 0 0 °C 時將該玻璃焊劑施加至燈泡頸中時所需的時間是1 000小時 或超過1000小時的情況都不會發生。於是，在放電燈中在 5 00 °C的壓榨過程時可藉由該玻璃焊劑來達成一種超過至少 1 000小時的高溫保護作用。在鹵素白熾燈中，較佳是在500 °C的壓榨溫度操作超過1 000小時的情況下，可避免氧進入 至燈泡頸中使氧不會到達供應電流的部份。這特別是可在 一種組合情況下達成，此時除了中空區中的玻璃焊劑之外 Φ 該電流承載箔至少以區域方式塗佈另一個氧化保護層（特別 是以鉻來塗佈）。 玻璃焊劑之特殊功能較佳是藉由材料成份、維度和數量 來達成。藉由玻璃焊劑之特殊功能，則可使電燈的操作性 能大大地提高。 本發明的電燈之有利的佈置方式亦可視爲電燈之製造方 法的有利的方式。 Q 本發明的實施例以下將依據圖式來詳述。 【實施方式】 各圖式中相同或作用相同的元件以相同的參考符號來表 不 ° 第1圖顯示一種以放電燈來形成的電燈I。第1圖顯示該 電燈I之上部區的切面圖以及下部區的側視圖。 電燈I在本實施例中形成大功率的燈，其燈功率例如是 1 200 瓦（W)。 -14- 201017712 電燈I具有一燈泡1，其包括一種腹部形的中央部，此中 央部上在相面對的側面上連接著一燈泡頸2和另一燈泡頸 3。燈泡1以單件方式來形成且在該中央部的內部中形成一 作爲點燃區的放電區4。第一電極5延伸至該放電區4中， 本實施例中第一電極5形成棒形。第一電極5在電性上和機 械上是與電流供應裝置6，7相連接。電極5是由鎢或含有 鎢之材料所製成。 電流供應裝置包括一電流承載箔6，其由鉬或含有鉬的材 料來形成且在以氣密方式熔合至燈泡頸2中時另外又形成 —種密封箔。此外，該電流供應裝置包括一電流承載銷7, 其同樣形成棒形且例如由鉬或含有鉬的材料構成。 以相對應的方式，在相面對的側面上設有第二電極8,其 同樣形成棒形且延伸至放電區4中。此外，第二電極8同樣 至少以區域方式埋置於第二燈泡頸3中且在電性上和機械 上是與電流供應裝置9，10相連接，電流供應裝置9，10 φ 類似於電流供應裝置6，7而形成在燈泡頸2中。例如’第 1圖中顯示的是電流供應裝置之電流承載銷10和電流承載 涪9。 本實施例中該電燈I在二側設有基座。然而，亦可設置一 種放電燈，其只在一側設有基座。同樣，電燈I亦能以鹵素 白熾燈來形成。 電流承載箔6和由燈泡頸2延伸而出的電流承載銷7焊接 在一連接位置13上。在燈泡頸2之遠離該放電區4之末端 -15- 201017712 上形成一中空區11。由於燈泡頸2基本上是佈置成管狀’ 則該中空區11之橫切面基本上形成圓形。該燈泡頸2之縱 軸A基本上對應於電流供應裝置6, 7之縱軸且因此亦是電 極5和電流承載銷7之縱軸A。電流承載銷7基本上是與中 空區11之縱軸成共軸的方式而配置著，此時該中空區11 之縱軸即爲燈泡頸2之縱軸A。 第1圖中顯示已製成的狀態的電燈I，其中在末端側上安 裝著基座。這表示：電流供應裝置6，7熔合至燈泡頸2中 e 且燈泡頸2之材料被壓榨至一壓榨區22中。於是，電流承 載箔6氣密地配置在燈泡頸2中。該壓榨區22只有一部份 在該燈泡頸2之整個長度上延伸且終止於該中空區11之下 端，即，終止於與該連接位置1 3相面對的末端。 中空區11中完全以玻璃焊劑12來塡入。形成該玻璃焊劑 12’以便對該電流供應裝置6，7之延伸至燈泡頸2中的部 份形成氧化保護作用。 φ 該中空區11只延伸至燈泡頸2之一與該連接位置13相隔 開的位置處。因此，玻璃焊劑12未與該連接位置13相接觸 且亦未與電流承載箔6相接觸。縱向距離是由參考符號丄 來表示。 此外’電流承載銷7具有直徑dl，其較該中空區11之直 徑d2小很多。玻璃焊劑1 2之厚度是由電流承載銷7之外側 至燈泡頸2之作爲該燈泡頸11之邊界用的內壁的距離來設 定。因此’玻璃焊劑12之厚度大於（特別是大很多）電流承 -16- 201017712 載銷7之半徑（（dl)/2)。 如第1圖所示，玻璃焊劑1 2只在周圍側圍繞該電流承載 銷7。 只有在該埋置過程之後且因此亦是在該燈泡頸2被溶合 且壓榨至該壓榨區22中之後該玻璃焊劑12才塡入至該中空 區1 1中。 該中空區11之徑向範圍因此較燈泡頸2之材料和該連接 0 位置13之區域中之該電流承載箔6之間、以及燈泡頸2之 材料和壓榨區22中之電流承載銷7之間所形成的毛細管還 大，此種毛細管是在熔合過程中和隨後的冷卻過程中形成。 燈泡頸3之區域中未顯示切面圖而是顯示該電燈I之由外 部所看到之視側圖。電燈I之燈泡頸3中之佈置方式類似於 燈泡頸2之區域中的佈置方式。例如，中空區14以至一軸 A之半徑r來表示。此處亦在燈泡頸3之遠離該放電區4之 末端31上形成該中空區14,其同樣只延伸至一壓榨區32。 ® 在縱軸A之方向中觀看時，中空區11由燈泡頸2之後端 之邊緣最多可到達該壓榨區22之開始處。 燈泡頸3中的中空區14以類似的方式來設定大小。 在電燈I製造時，電極5和電流供應裝置6，7***至管 形的燈泡頸2中。然後，產生該壓搾區22，此時該燈泡頸2 在適當的位置處加熱且使該石英玻璃材料熔化。此外，在 燈泡頸2之適當的位置處進行該壓榨過程，以便使電流承 載箔6達成氣密的熔合。隨後，使該燈泡頸2冷卻且特別是 -17- 201017712 由於各材料之不同的膨脹而可在該連接位置13 銷7之周圍形成未示於圖中的毛細管。 只有在冷卻之後才可將玻璃焊劑12施加至| 中。以對應的方式，在燈泡頸3之區域中進行該 造。 玻璃焊劑1 2之施加較佳是在保護氣體（例如 下進行。 以玻璃焊劑1 2所達成的氧的排除作用足夠在 ❹ 置6，7上允許至少500°C之溫度達至少1 000小 況適用於燈泡頸3之區域中。 在該電燈I設置成鹵素白熾燈時，特別是可將 12同時施加在該中空區11中或至少在時間上與 裝步驟同時進行。 依據電燈I在燈泡頸2之區域中的佈置方式亦 於燈泡頸3中的佈置方式或用於電燈I之相對應 φ 頸中，當該電燈具有此種型式的第二燈泡頸時 如第1圖所示，中空區1 1和1 4以圓形化的形 向該放電區4之末端上。 藉由對中空區11和14進行圍繞和設定尺寸， 12亦可形成軟木塞形式的密封作用。依據第1 璃焊劑12超過後方邊緣或後端21之邊緣而延ί 如第1圖所示，在玻璃焊劑1 2上形成另一保ΐ 氧不會進入至電流供應裝置6, 7中。此保護層 及電流承載 I中空區1 1 電燈I之製 1氬）的大氣 電流供應裝 時。同樣情 該玻璃焊劑 一基座的安 可類似地用 的第二燈泡 > 式形成在面 則玻璃焊劑 圖可知，玻 ¥ ° 蒦層1 6以使 1 6直接形成 -18- 201017712 在玻璃焊劑12之表面15上，其中該表面15是一種遠離該 點燃區4且面向周圍環境的上側。 本實施例中，該玻璃焊劑12施加至中空區11中，使玻璃 焊劑12在後端21之邊緣上具有某種程度的拱形且向外延 伸。此保護層16除了直接施加在該向外延伸之表面15上以 外亦可施加在該後端21之邊緣上。該玻璃焊劑12因此在裸 露的表面15上完全由該保護層16所覆蓋。 該保護層1 6特別是在中空區1 1中完全形成該玻璃焊劑 ^ 12之後施加至該表面15上。該保護層16可由聚醯胺或陶 瓷纖維材料或陶瓷黏合材料所構成且特別是溫度達500 °C 時仍具有溫度穩定性。藉由該保護層16，則氧的導通性 (per me ability)可進一步下降，且可能發生軸跳躍的時間亦可 延後發生。5 00 °C時的高溫保護期間可藉由此一保護層16 而延長15 %至20%。可使有基座的全部之放電燈和鹵素白熾 燈的可使用性獲得確保。 0 第2圖中顯示一種以鹵素白熾燈來形成的電燈II之一部 份的切面圖。此電燈II只具有一燈泡頸2’，其中埋置著或 熔合著電流供應裝置6’，7’，9’和10’。電流承載銷7’和10’ 在末端側由燈泡頸2’向外延伸。電流承載銷7’和10’因此與 電流承載箔6 ’和9 ’相焊接。燈泡頸2 ’中，在末端側形成中 空區1 Γ和1 4 ’，其在本實施例中完全以玻璃焊劑1 2來塡滿 以便密封及達成氧化保護作用。如第1圖所示的電燈I中的 另一層16在此種佈置方式中並未設置，但亦可設置》 -19- 201017712 此外，第2圖之實施例中各電流承載箔6’和9’之鉬材料 至少以區域方式（特別是在各連接位置1 3 ’和1 3 ’’上）而塗佈 著另一氧化保護層。此處特別是以鉻來塗佈。 在第1圖之該在二側設有基座之電燈I中，較佳是各燈泡 頸2和3分別在末端側設有一由優質鋼所構成的基座。此種 基座形成另一種可抗氧化的佈置形式。 藉由上述的佈置形式，則在溫度500°C時導電性至少可持 續800小時而保持不變。 【圖式簡單說明】 第1圖本發明的電燈的側視圖或第一實施例的切面圖的 一部份。 第2圖本發明的電燈之另一實施例的一部份的圖解。 【主要元件符號說明】 I，I I 電燈 1 燈泡 ❹ 2,3 燈泡頭 4 放電區 5 第一電極 6, 6’ 電流供應裝置（電流承載箔） 7, 7’ 電流供應裝置（電流承載銷） 8 第二電極 9，9 ’ 電流供應裝置（電流承載箔） 1〇, 1〇’ 電流供應裝置（電流承載銷） -20- 201017712201017712 IX. The invention relates to an electric lamp having a bulb, the bulb comprising: an ignition zone, wherein at least one electrode extends; and a bulb neck connected to the ignition zone embedded therein At least one current supply device coupled to the electrode extends outwardly from the bulb neck. Furthermore, the invention also relates to a method of manufacturing an electric lamp. [Prior Art] v A discharge lamp and a halogen lamp, which are usually large in power, are simultaneously emitted and the size of the lamp is kept the same or even reduced or the cooling effect in the illuminator is lowered, which causes the members to be subjected to a large heat load. A typical component for conducting current in such a lamp is, for example, molybdenum, and molybdenum begins to oxidize at temperatures above about 3 5 (TC). For example, due to the system with current carrying pins and current carrying foil embedded in the bulb neck quartz In the case of glass, there is no room for expansion of the larger volume of molybdenum oxide. This causes an early failure of the lamp due to the jump of the shaft or even an explosion of the lamp. A lamp is known from DE 699 27 574 T2. Forming a protective layer on the outer current conductor and the current carrying foil connected to the current conductor. The protective layer forms only a thin layer of 4 micrometers to 6 micrometers and is composed, for example, of chromium. The inner wall, and some portions of the current carrying foil and the capillary formed between the outwardly extending current carrying pins, the protective layer must extend over the entire length of the current carrying pin and must also be exposed in the current carrying foil Part of the area is extended. 201017712 The material is made in the mouth of the ΠΠ ΠΠ 芹 施 的 的 的 的 施 施 产 产 保护 保护 保护 保护 保护 保护 保护 保护 保护 保护 保护 ' ' ' It is also harmful to the health of the layer to be applied with the addition of the additive. In addition, the protective layer must be applied before being fused to the current carrying foil and the current carrying pin. However, due to the document It is less predictable - and usually not expected - to form a capillary between the inner wall of the bulb neck, the current carrying foil, the current carrying pin, and the layer applied to the foil and the pin during the fusing process. "Whether the layer can produce a sufficient ruthenium oxide protection after the fusion process." Since the layer material will also melt during this fusion process, it is not possible to predict whether the desired sufficient amount can be produced more surely. Oxidation protection. SUMMARY OF THE INVENTION An object of the present invention is to provide an electric lamp and a method of manufacturing the same, which can improve the oxidation protection of a portion of an electric lamp carrying a current and achieve the object without much trouble. © The above object is achieved by an electric lamp having the features of claim 1 and a method having the features of claim 12 The electric lamp of the present invention comprises a bulb having an ignition zone, wherein at least one electrode of the ignition zone extends. Further, the bulb of the lamp comprises at least one bulb neck connected to the ignition zone, wherein at least one of the bulb is embedded therein a current supply device connected to the electrode, extending outward from the bulb neck. A hollow end region is formed on the end of the bulb neck away from the ignition region, and at least a portion of the hollow region is sealed with a glass solder 201017712 In terms of the arrangement of the above lamps, the oxidation protection of the portion of the current supply device extending into the bulb can be improved. Compared with the prior art, an equally effective oxidation protection can be much simpler - and A more cost-effective way to achieve this. In addition, it avoids the use of some environmentally harmful materials and does not require complicated additional steps when applying glass solder. The electrode means, for example, the anode and the cathode of the discharge lamp. Similarly, the incandescent filaments of incandescent lamps (especially halogen incandescent lamps) can be understood with the enthusiasm of electrodes. In particular, the current supply device is embedded in the bulb neck by the fusion and/or pressing of the material of the bulb neck in place. It is particularly advantageous that the hollow zone formed on the end side of the bulb neck can only be infused with glass solder after the embedding process. Therefore, unlike the prior art, it is no longer necessary to perform a coating process on the current supply device before the fusion process, and it is not necessary to distribute the fusion coating in the desired position during the subsequent fusion process. In an advantageous implementation of the invention, the application of the glazing of the glass solder can be carried out very clearly and accurately, after the pressing process has ended and the geometrical arrangement of the hollow zone is known and no longer changed. The vacant area of the hollow region between the inner wall of the bulb neck and the outer side of the current supply means is preferably completely filled with glass solder when viewed perpendicular to the longitudinal direction of the current supply means. A large hollow zone like that produced in the prior art therefore does not occur. Undesirably thin locations can increase the risk of oxygen intrusion, even in the prior art. Such a thin position does not occur in the present invention. Especially when viewed in the radial direction, the hollow region is completely infused with glass solder. 201017712 The hollow zone is preferably formed only on the side of the press zone of the bulb neck away from the ignition zone. In the longitudinal direction of the bulb neck - and thus also in the longitudinal direction of the current supply device, at least a portion of the hollow region extending in a shorter length in the longitudinal direction is sufficient to be less cumbersome And a more cost effective way to ensure a better oxidation protection. In addition, the glass solder can be applied relatively simply and relatively inexpensively by the particular location of the hollow region. The length of the hollow zone and the inner end are preferably limited by the end of the press zone remote from the ignition zone. The thickness of the glass solder, and particularly the radial extent, is preferably greater than the radial dimension of the current carrying pin of the current supply. In particular, the thickness of the glass solder is at least twice the radius of the current carrying pin of the current supply. Therefore, the radial dimension of the glass solder is preferably much larger than the radius of the current carrying pin of the current supply. In particular, in the region of the current carrying pin, the periphery of the current supply device is surrounded by glass solder. The radial distance between the outer side of the current carrying pin and the inner wall of the bulb neck defining the hollow portion is preferably much larger than the distance between the outer side of the current carrying pin and the inner wall of the outer bulb of the hollow portion. . Particularly when the bulb neck is cooled and the components are fused into the bulb neck, the hollow zone is not an formed air zone but is formed in particular by the hollow end zone of the tubular bulb neck. This is especially relevant for discharge lamps with a tubular bulb neck. In a halogen incandescent lamp, the formation of the hollow zone occurs during the pressing process, which forms a small recessed area and occurs around the current carrying pin. .201017712 The glass flux is formed in particular in the form of a cork and must be appropriately sized due to the shape of the hollow zone. The diameter of the hollow zone is also the diameter of the glass solder in the form of a cork in the hollow zone which is greater than the diameter of the current carrying pin of the current supply means at that location, in particular at least twice as large. This applies in particular to discharge lamps with tubular bulb necks. However, a suitable hollow region can also be formed in the halogen incandescent lamp. It is particularly advantageous to apply a glass solder to the hollow zone under the atmosphere of a shielding gas. For example, argon may be provided as a shielding gas. In this way, the existing oxygen can be discharged particularly efficiently and the entry of oxygen can be prevented when the glass solder is applied. Therefore, the oxidation protection can be further improved. In particular, intrusion of undesired oxygen can be prevented when the glass solder is applied. The current supply means comprises a current carrying foil which is completely embedded in the bulb neck and which is connected to the electrode. In addition, the current supply means includes a current carrying pin that is coupled to the current carrying foil in the interior of the bulb neck and extends outwardly from the bulb neck over the hollow region of the bulb neck. The glass solder is separated from the connection region between the current carrying foil and the current carrying pin without being in contact when viewed in the longitudinal direction of the current supply device. Therefore, the glass solder is preferably formed on the peripheral side only around the current carrying pin. The current carrying case is therefore placed in the bulb neck without glass solder. The connection zone between the current carrying foil and the current carrying pin is in particular a soldering area which is therefore not in contact with the material used for the connection. Thus, the glass solder can be applied much more easily and less frequently, and 201017712 is difficult to apply prior art coatings, particularly due to the different shapes of the current carrying foil and the current carrying pins. In an advantageous arrangement of the invention, it is no longer necessary to provide a glass solder in such sensitive areas. The softening point of the glass solder preferably occurs at temperatures above 400 ° C, especially above 500 ° C or 600 ° C, and particularly advantageously occurs above 1000 t. The glass solder is preferably a crystallizable glass solder. The glass solder can also be a synthetic glass solder. It is preferred when the glass solder is not added with lead and is formed in the form of lead-free bismuth. Preferably, the current supply means is at least partially coated with an oxidative protective layer. In particular, at least a portion of the current carrying pin associated with the current supply means is coated with chromium and/or platinum and/or gold and/or aluminum and/or zirconium and/or glass solder as an oxidative protective material. This arrangement can be implemented in a large number of manufacturing steps, which also achieves a cost-effective manufacturing. The current-carrying foil, which is fused to the neck of the bulb and which is associated with the current supply, is connected to the current-carrying pin and can in particular be processed in this arrangement without having to additionally apply an oxidized protective layer. However, at least a portion of the current carrying foil may additionally be coated with chromium and/or platinum and/or gold and/or aluminum and/or pin and/or glass solder for oxidative protection. The oxidized protective layer for the molybdenum of the current carrying foil thus exceeds the sealing area and reaches the area of the base of the lamp. The current carrying foil is preferably provided with another coating in the halogen incandescent lamp. Preferably, at least a portion of the current carrying foil (which faces the -10-201017712 opening of the bulb neck that is sealed with glass solder) is preferably provided with such a coating. Preferably, a pedestal is disposed on the end side of the bulb neck, at least a portion of which is formed of an oxidative protective material. In this regard, the oxidative protection can be ensured on the bulb neck, on the current supply assembly, and on the base of the end. Particularly in the case of a base made of metal, it is particularly advantageous to use an oxidation resistant material or a corresponding coating. For example, a susceptor made of stainless steel may be used instead of a generally nickelated alloy. Here, it is preferred to provide a coating consisting of chromium and/or platinum and/or gold and/or aluminum and/or zirconium as an oxidative protective layer for the susceptor. With this arrangement of the susceptor, the oxidative protection can be extended to the entire lamp. The electric lamp may be a lamp having a base on one or both sides. The application of the glass solder is preferably carried out in an atmosphere of a protective gas. Preferably, a protective layer for preventing oxygen ingress is formed in the region of the glass solder away from the ignition region so that oxygen cannot enter the portion of the current supply device that extends into the neck of the bulb. With this additional protective layer, φ can be made into the final seal, which further improves the oxidation protection. The material of this additional layer is a different material than the glass solder. The protective layer for preventing oxygen from entering is preferably formed on the region of the glass solder which is away from the ignition region of the bulb neck. Therefore, it is preferred to form a protective layer on the outer side for preventing oxygen from entering. The mounting position of the protective layer can be easily and effortlessly completed and can ensure that the entry of oxygen is better prevented from being used as a glass solder and the protective layer for preventing oxygen from entering is preferably made of different materials -11 - 201017712 It is expected to form. In particular, the protective layer is formed on a region of the glass solder which is protruded from the hollow region. With the above arrangement, the planar extent and layer thickness of the protective layer can be simply changed and optimized. The protective layer for preventing oxygen from entering the current supply means is preferably formed directly on the glass solder. No other materials or other layers are disposed between the protective layer and the glass solder. However, in principle, the protective layer and the glass solder may not be mounted directly adjacent to each other, and an intermediate layer may be formed between the protective layer and the glass solder. Preferably, the protective layer for preventing oxygen ingress comprises at least a component comprising polyimide. Also, the protective layer may include a ceramic fiber material at least in composition. For example, the material Tyr anno Coat of UBE Industries can be used here. Similarly, the protective layer can also be a ceramic bonding material. The protective layer is preferably of a type up to a temperature of 500. Preferably, the bulb is formed by a material that is still stable. The bulb preferably has at least two bulb necks that face each other and extend over the crucible ignition zone. In the method of fabricating an electric lamp of the present invention, at least one of the electrodes is at least an area The method extends into the ignition zone of the bulb and extends at least in a regional manner into a bulb neck connected to the ignition zone and is embedded in the bulb neck in a regional manner together with the current supply device, the current supply device being light bulb The neck extends outwardly. A hollow region on the end side is formed in the bulb neck, and the hollow region is infiltrated at least in a regional manner with a sealing glass flux to extend the current supply device into the bulb neck. Partly obtains the protective effect of oxidation-12-201017712. By this manufacturing method, better oxidation protection can be achieved with less trouble and cost-effectively. In the process of the method, by the selected materials, The load on the environment is negligible when compared to the use of chromium. The portion of the current supply that extends into the neck of the bulb and the extension of the electrode to The portion of the neck is preferably embedded in the neck of the bulb by fusion and/or pressing of the material of the bulb neck. The glass solder is only after the current supply device and the electrode are embedded in the bulb neck in a regional manner. The glass solder is applied in the step after the embedding process, so that the glass solder can be mounted more appropriately and surely. Thus, the oxidation protection can be greatly improved. The glass flux is such that the vacant region formed between the inner wall of the bulb neck and the outer side of the current supply device is completely glass soldered when viewed in a direction perpendicular to the longitudinal axis of the current supply device Intrusion. @ The entire hollow zone is preferably infiltrated with glass solder. This avoids a large air zone and at least greatly reduces the amount of oxygen entering. The hollow zone is preferably formed only in the press zone. It is away from this side of the ignition zone. Thus, only a small volume is inserted into the glass solder at least in a regional manner. This makes it easier to apply the glass solder, which can then be applied Sufficient glass soldering agent improves the oxidative protection. The glass solder is applied to the hollow zone in a particularly advantageous manner under the atmosphere of a protective gas. -13- 201017712 It has been shown to be particularly advantageous for the glass solder to be At 1000 ° C, the time required to apply the glass flux to the neck of the bulb is 1 000 hours or more than 1000 hours. Therefore, the press process at 500 ° C in the discharge lamp The glass solder can be used to achieve a high temperature protection of more than at least 1 000 hours. In a halogen incandescent lamp, preferably at a press temperature of 500 ° C for more than 1,000 hours, oxygen can be prevented from entering. The portion of the bulb neck that does not allow oxygen to reach the supply current. This can be achieved in particular in a combination where, in addition to the glass solder in the hollow region, the current carrying foil is coated at least in a regional manner by another oxidation. Protective layer (especially coated with chrome). The special function of the glass solder is preferably achieved by the composition, dimensions and quantity of the material. Thanks to the special function of the glass solder, the operational performance of the lamp can be greatly improved. An advantageous arrangement of the electric lamp of the invention can also be considered as an advantageous way of manufacturing the electric lamp. Q Embodiments of the present invention will be described in detail below based on the drawings. [Embodiment] The same or identical elements in the drawings are denoted by the same reference numerals. FIG. 1 shows an electric lamp I formed by a discharge lamp. Fig. 1 is a cross-sectional view showing the upper portion of the electric lamp I and a side view of the lower portion. The lamp I forms a high power lamp in this embodiment, the lamp power of which is, for example, 1 200 watts (W). The electric lamp I has a bulb 1 which comprises an abdomen-shaped central portion on the opposite side of which a bulb neck 2 and another bulb neck 3 are attached. The bulb 1 is formed in a single piece and a discharge zone 4 as an ignition zone is formed in the interior of the central portion. The first electrode 5 extends into the discharge region 4, and the first electrode 5 is formed in a rod shape in this embodiment. The first electrode 5 is electrically and mechanically connected to the current supply means 6, 7. The electrode 5 is made of tungsten or a material containing tungsten. The current supply means comprises a current carrying foil 6 formed of molybdenum or a material containing molybdenum and additionally forming a sealing foil when it is gas-tightly fused into the bulb neck 2. Furthermore, the current supply device comprises a current carrying pin 7, which likewise forms a rod and is composed, for example, of molybdenum or a material containing molybdenum. In a corresponding manner, a second electrode 8 is provided on the facing side, which likewise forms a rod and extends into the discharge zone 4. Furthermore, the second electrode 8 is likewise embedded in the second bulb neck 3 at least in a regional manner and is electrically and mechanically connected to the current supply devices 9, 10, which are similar to the current supply. The devices 6, 7 are formed in the bulb neck 2. For example, shown in Fig. 1 is a current carrying pin 10 and a current carrying pin 9 of a current supply device. In this embodiment, the electric lamp I is provided with a base on two sides. However, a discharge lamp can also be provided which is provided with a base only on one side. Similarly, the lamp I can also be formed with a halogen incandescent lamp. The current carrying foil 6 and the current carrying pin 7 extending from the bulb neck 2 are welded to a joint position 13. A hollow zone 11 is formed on the end of the bulb neck 2 away from the discharge zone 4 -15-201017712. Since the bulb neck 2 is substantially arranged in a tubular shape, the cross section of the hollow region 11 is substantially circular. The longitudinal axis A of the bulb neck 2 substantially corresponds to the longitudinal axis of the current supply means 6, 7 and is therefore also the longitudinal axis A of the electrode 5 and the current carrying pin 7. The current carrying pin 7 is disposed substantially coaxially with the longitudinal axis of the hollow region 11, and the longitudinal axis of the hollow region 11 is the longitudinal axis A of the bulb neck 2. Fig. 1 shows a lamp I in a finished state in which a susceptor is mounted on the end side. This means that the current supply means 6, 7 are fused to the bulb neck 2 and the material of the bulb neck 2 is pressed into a press section 22. Thus, the current carrying foil 6 is hermetically disposed in the bulb neck 2. Only a portion of the press section 22 extends over the entire length of the bulb neck 2 and terminates at the lower end of the hollow section 11, i.e., ends at the end facing the attachment location 13. The hollow zone 11 is completely infused with the glass solder 12. The glass solder 12' is formed to form an oxidation protection effect on the portions of the current supply means 6, 7 which extend into the bulb neck 2. φ The hollow zone 11 extends only to a position where one of the bulb necks 2 is spaced apart from the connection position 13. Therefore, the glass solder 12 is not in contact with the connection position 13 and is not in contact with the current carrying foil 6. The longitudinal distance is indicated by the reference symbol 丄. Further, the current carrying pin 7 has a diameter d1 which is much smaller than the diameter d2 of the hollow portion 11. The thickness of the glass solder 12 is set by the distance from the outer side of the current carrying pin 7 to the inner wall of the bulb neck 2 which serves as the boundary of the bulb neck 11. Therefore, the thickness of the glass solder 12 is larger (especially much larger) than the radius of the load pin 7 ((dl)/2). As shown in Fig. 1, the glass solder 12 surrounds the current carrying pin 7 only on the peripheral side. The glass solder 12 is only inserted into the hollow region 11 after the embedding process and thus also after the bulb neck 2 is melted and pressed into the press zone 22. The radial extent of the hollow zone 11 is thus between the material of the bulb neck 2 and the current carrying foil 6 in the region of the connection 0 position 13, and the material of the bulb neck 2 and the current carrying pin 7 in the press section 22. The capillary formed between them is also large, and such a capillary is formed during the fusion process and subsequent cooling. The cut surface view is not shown in the area of the bulb neck 3, but the side view of the electric light I as seen from the outside is shown. The arrangement in the bulb neck 3 of the lamp I is similar to the arrangement in the region of the bulb neck 2. For example, the hollow region 14 is represented by a radius r of an axis A. The hollow zone 14 is also formed here at the end 31 of the bulb neck 3 remote from the discharge zone 4, which likewise extends only to a press zone 32. When viewed in the direction of the longitudinal axis A, the hollow zone 11 is up to the beginning of the press zone 22 from the edge of the rear end of the bulb neck 2. The hollow zone 14 in the bulb neck 3 is sized in a similar manner. When the lamp I is manufactured, the electrode 5 and the current supply means 6, 7 are inserted into the tubular bulb neck 2. The press zone 22 is then produced, at which point the bulb neck 2 is heated at the appropriate location and the quartz glass material is melted. Further, the pressing process is carried out at an appropriate position of the bulb neck 2 to achieve a hermetic fusion of the current carrying foil 6. Subsequently, the bulb neck 2 is cooled and in particular -17-201017712 a capillary tube not shown in the figure can be formed around the pin 13 of the connection position 13 due to the different expansion of the respective materials. The glass solder 12 can be applied to | only after cooling. This is done in the region of the bulb neck 3 in a corresponding manner. The application of the glass solder 12 is preferably carried out under a protective gas (for example, the elimination of oxygen by the glass solder 12 is sufficient to allow a temperature of at least 500 ° C to at least 1,000 conditions on the electrodes 6, 7 Applicable in the region of the bulb neck 3. When the lamp I is arranged as a halogen incandescent lamp, in particular 12 can be simultaneously applied in the hollow zone 11 or at least in time with the loading step. The arrangement in the region of 2 is also in the arrangement of the bulb neck 3 or in the corresponding φ neck of the lamp I. When the lamp has the second bulb neck of this type, as shown in Fig. 1, the hollow region 1 1 and 1 4 are rounded toward the end of the discharge zone 4. By enclosing and dimensioning the hollow zones 11 and 14, 12 can also form a sealing effect in the form of a cork. 12 beyond the edge of the rear edge or the back end 21 as shown in Fig. 1, another moisture is formed on the glass solder 1 2 and does not enter the current supply devices 6, 7. This protective layer and current carrying Atmospheric current of I hollow zone 1 1 lamp I made 1 argon) When loaded. Similarly, the glass solder can be similarly used as the second bulb of the pedestal. The pattern is formed on the surface of the glass solder. It can be seen that the glass layer 16 is formed so that the 16 is directly formed -18- 201017712 in the glass solder. On the surface 15 of the 12, the surface 15 is an upper side remote from the ignition zone 4 and facing the surrounding environment. In the present embodiment, the glass solder 12 is applied to the hollow region 11 such that the glass solder 12 has a certain degree of arch shape on the edge of the rear end 21 and extends outward. This protective layer 16 can be applied to the edge of the rear end 21 in addition to being applied directly to the outwardly extending surface 15. The glass solder 12 is thus completely covered by the protective layer 16 on the exposed surface 15. The protective layer 16 is applied to the surface 15 particularly after the glass solder 12 is completely formed in the hollow region 11. The protective layer 16 can be composed of a polyamide or ceramic fiber material or a ceramic bonding material and is particularly temperature-stable at temperatures up to 500 °C. With the protective layer 16, the permeability of oxygen can be further lowered, and the time during which the axis jump may occur can be delayed. The high temperature protection period at 00 °C can be extended by 15% to 20% by this protective layer 16. The usability of all discharge lamps and halogen incandescent lamps with a pedestal can be ensured. 0 Fig. 2 shows a cutaway view of a portion of an electric lamp II formed by a halogen incandescent lamp. This electric lamp II has only one bulb neck 2' in which current supply means 6', 7', 9' and 10' are embedded or fused. The current carrying pins 7' and 10' extend outward from the bulb neck 2' on the end side. The current carrying pins 7' and 10' are thus soldered to the current carrying foils 6' and 9'. In the bulb neck 2', the hollow regions 1 Γ and 14' are formed on the end side, which in this embodiment are completely filled with the glass solder 12 for sealing and oxidation protection. The other layer 16 of the lamp I as shown in Fig. 1 is not provided in this arrangement, but can also be set up -19-201017712. Further, in the embodiment of Fig. 2, the current carrying foils 6' and 9 The molybdenum material is coated with another oxidized protective layer at least in a regional manner (especially at the respective connection locations 1 3 ' and 1 3 ''). This is especially coated with chromium. In the electric lamp 1 in which the base is provided on both sides in Fig. 1, it is preferable that each of the bulb necks 2 and 3 is provided with a base made of high-quality steel on the end side. Such a susceptor forms another oxidation resistant arrangement. With the above arrangement, the conductivity remains unchanged for at least 800 hours at a temperature of 500 °C. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of an electric lamp of the present invention or a part of a cutaway view of the first embodiment. Figure 2 is an illustration of a portion of another embodiment of an electric lamp of the present invention. [Main component symbol description] I, II Lamp 1 Lamp ❹ 2,3 Lamp head 4 Discharge area 5 First electrode 6, 6' Current supply device (current carrying foil) 7, 7' Current supply device (current carrying pin) 8 Second electrode 9,9 ' Current supply device (current carrying foil) 1〇, 1〇' Current supply device (current carrying pin) -20- 201017712
11,14,11,14’ 中空區 12 玻璃焊劑 1 3 , 1 3，，1 3 ” 連接位置 15 玻璃焊劑之表面 16 保護層 21 後端 22,32 壓榨區 3 1 末端 dl , d2 , r 半徑11,14,11,14' hollow zone 12 glass flux 1 3 , 1 3,,1 3 ” connection position 15 surface of glass solder 16 protective layer 21 rear end 22,32 press area 3 1 end dl , d2 , r radius
-21--twenty one-