200903559 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種電燈及此種電燈的操作方法。 【先前技術】 一種所謂後視燈（RetroUmp)形式的電燈已爲人所知，其 具有一種白熾燈以作爲光源且此光源的目的是產生光。此 種後視燈亦可具有一發光二極體以作爲光源。亦可依據發 光二極體的技術來產生光色或光效應。傳統式發光媒體之 光特性、光色和光效應之變化只有藉由下述方式才有可能 達成’即：使用者藉由光開關上的切換順序來影響相對應 的光特性、光色或光效應。後視燈中經由光開關所造成的 此種影響會形成較大的耗費且另外只限於一些狀態下才會 發生。 【發明內容】 本發明的目的是提供一種電燈以及此種電燈的操作方 法，藉此可對光特性造成可變化的影響且耗費較小。 上述目的藉由一種具有申請專利範圍第丨項特徵的電燈 和一種具有申請專利範圍第1 4項特徵的操作電燈的方法來 達成。 本發明的電燈包括一種下部和一與該下部相連接的燈 泡。燈泡中配置著至少一光源。燈泡可相對於該下部而移 動。因此，該燈的應用領域可變化且可廣泛地擴大。 特別是可依據該燈泡相對於該下部的位置在該燈操作時 調整各種特殊的操作條件。至少設有二個不同的位置，其 200903559 中該燈泡可對該下部來進行配置。每一個位置都對應於該 燈之個別的操作方式或操作條件。在一種特別簡單且有效 率的方式中，藉由上述形式的電燈可耗費較少地使光特 性、光色或光效應改變。於是，只需使燈泡相對於該下部 的位置作調整即可。此種相對的位置調整可在電燈操作之 前進行，但亦可在電燈操作期間進行。特別是當該電燈使 用在一種燈頭中且被供應以主電源時，則在操作期間該燈 泡可相對於該下部而移動且據此來設定另一特殊的操作方 式。 較佳的設計方式是，燈泡可相對於該下部來圍繞該燈之 一縱軸而旋轉。藉由此種特別簡單的移動方式，則對一使 用者而言可直覺且簡易地來對該燈泡相對於該下部之新位 置進行調整，且因此亦能可靠地對一種新的操作方式進行 調整。 較佳是在燈泡中配置該光源，以產生具有至少二種光色 的光束。較佳是以發光二極體來作爲光源。然後，依據控 制方式，一光源可依據一特殊的控制方式來發出不同光色 的光束。 亦可將該燈設計成具有至少二個光源，其配置在燈泡中。 該下部具有一燈頭或一外殼和一基座，其是與該外殻相 連接。燈泡較佳是可移動地與該外殼相連接著。燈泡較佳 是至少以區域方式而配置在該外殼中。這表示：燈泡在面 向該下部（特別是該下部之外殼）的末端上具有一種直徑’其 小於該下部的直徑’特別是小於該下部的外殼的直徑。在 200903559 該燈之此種交錯接合的區段中，該下部完全以環形方式圍 繞著該燈泡。 較佳是一方面在該下部的外殼中且另一方面在該燈泡中 形成互補的塡充元件，藉此可將燈泡和該下部固定在該燈 的縱軸方向中，且然後可圍繞該縱軸進行一種旋轉式移 動。於是，此二個組件，燈泡和下部，之位置可固定在縱 軸方向中，隨後可圍繞縱軸而旋轉以確保相對的可移動 性。因此，可確保該燈的機械穩定性，然後可使各組件之 間達成一種可變化的移動。 特別是可設計成在燈泡上形成一種導引槽，其抓握在下 部中的導引鼻中，且因此可確保一方面可共同固定著且另 一方面可旋轉。 該燈泡相對於該下部之可移動性（特別是旋轉式移動）較 佳是由二個末端止動件來限制。特別是在圍繞該燈之縱軸 的環形方向中，該可移動性因此可藉由末端止動件來限 制。藉由此種構成，則在調整各操作條件時明確度可提高， 且該燈之機械穩定性另外亦可獲得改良。 此外’利用上述的構成，則在觸覺上亦可藉由一使用者 來較佳地測得上述的調整現象，此乃因該使用者可辨認： 由末端止動件開始時個別的特定之相對位置可到達何處。 在燈泡的外側上較佳是形成一凸起，其依據燈泡之移動 而可扣接在該下部的扣接位置中。藉由此種形式，則可使 操作方式的調整以及燈泡和該下部之間相對位置的調整再 一次獲得大大地改良。然後，當一使用者由外部使燈泡上 200903559 的凸起和扣接位置在該下部中不可看見時，則可很準確地 調整一特定的位置，此乃因該位置可被查覺成觸覺上的回 授。該燈泡之外側上的凸起特別是用作扣接栓或扣接鼻。 較佳是在該下部的內側上，特別是在該下部的外殼中， 形成至少二個個別互相隔開而配置的電性接觸區。依據該 燈泡的相對位置，這些電性接觸區之一可被接觸。, 該下部上的電性接觸區特別是在周圍方向中相鄰且互相 隔開而配置著，較佳是在電性接觸區和該燈泡之凸起之間 配置一種可撓性的導電元件，特別是一種可撓性的條片， 其與電性接觸區相隔開。 較佳是藉由燈泡相對於該下部的移動使該導電元件可經 由該凸起而與電性接觸區之一相接觸，且配屬於該已接觸 的電性接觸區之特定的操作條件可予以調整。 在接通之前或操作期間，燈的發光特性可改變。使燈泡 相對於該下部而旋轉以選取發光特性時所需的旋轉動量小 於燈頭之旋轉動量。這表示：當電燈在其終端狀態中旋轉 至一燈頭中或插入至一燈頭中時，則藉由燈泡的旋轉可使 該電燈不能由該燈頭中旋轉出來，只要末端止動件之一仍 未到達燈泡和該下部之間時。 若該電燈應插入至上述的燈頭中，特別是應旋轉至該燈 頭中時，則藉由旋轉動量的預設首先使燈泡相對於該下部 而移動，且只有在到達一末端止動件時該二個組件（燈泡和 下部）才均勻地旋轉至該燈頭中直至末端位置爲止。該燈泡 和下部均勻地繼續旋轉是在到達該末端止動件之後開始進 200903559 行。然後，在該電燈旋轉至該燈頭中而達到一種均衡時， 即已到達此一末端止動件，此時將整個電燈導入至該燈頭 中的旋轉動量等於該燈泡可相對於該下部而移動的旋轉動 量。 因此，在將電燈導入燈頭中以及由燈頭中取出電燈時首 先都須使燈泡相對於該下部而旋轉直至一末端止動件爲 止，且在到達此一末端止動件之後整個電燈又移動至該燈 頭中的末端位置中或由該末端位置中移出，且因此亦由該 燈頭中去除。 由於光源可較佳地由發光二極體來構成，則燈泡幾乎不 會被加熱，使燈泡亦可在電燈操作時由一使用者所接觸。 於是，在該電燈操作時亦可在任意的時間點使燈泡相對於 該下部而旋轉，且因此亦可在操作期間使操作方式改變。 燈泡和該下部之間的相對位置是與導電元件之與該下部上 的電性接觸區之一種特殊的接觸情況相對應，這可藉由一 控制單元來測定。此控制單元可配置在該下部之外殼中。 配置在該外殼之內壁或內側上的各電性接觸區較佳是藉 由徑向中已定向的條片來隔開。該導電元件配置在條片上 且在一種狀態中與一電性接觸區相隔開而配置著，此狀態 中該燈泡之外側上的凸起未對該導電元件施加壓力或該燈 泡在一電性接觸區之方向中受到壓力。 燈泡和該下部之間的相對位置以及一電性接觸區之相關 的特定之接觸情況可藉由一分壓器來實現。一控制單元可 對電壓信號進行計算。特別是該控制單元之一接腳（Pin)即 200903559 已足夠測得及算出全部的切換狀態。 由主電壓之頻率（特別是大約50赫）來導引 續地使彩色發生變化且多個此種電燈可在一 步，以及同時進行此種彩色變化。在具有多 照明系統中，可個別地以另一種操作方式來 轉所造成的電燈相對於該下部的移動現象進 此例如可進行一種與另一電燈相反的彩色變 設有一種使彩色發生變化的自由運行模式。 閃爍光、進行調光或進行其它類似的動作。 至另一種切換狀態，則使用者可選取該電燈 不必更換發光介質，或亦不必經由光開關而連 在本發明的一種電燈的操作方法中，該電 部和一種可相對於該下部而移動的燈泡，燈 少一光源，藉由燈泡相對於該下部的移動而 之間調整一特定的位置，且依據所調整的位 操作時對該電燈之與該位置相對應的特殊操 方式進行調整。 本發明的電燈之有利的形式可視爲本發明 的方式。 以下將依據圖式來詳述本發明的實施例。 【實施方式】 各圖中相同元件或作用方式相同的元件設 符號。 弟1圖中顯不一電燈1的側視圖，此電燈 的電燈亦可持 照明系統中同 個電燈的一種 對由於燈泡旋 行調整，且因 化。此外，亦 亦可產生一種 藉由燈泡旋轉 的發光特性而 ί當地程式化。 燈具有一種下 泡中配置著至 在此二種組件 置而在該電燈 作條件或操作 的方法的有利 有相同的參考 1形成爲所謂 -10- 200903559 的後視燈（Retrolamp)。此電燈1包括一燈泡2，其由塑料所 形成。此外，此電燈1包括一種下部3，其具有一外殻31 和一連接在該外殼31上的基座32。此基座32在本實施例 中形成一種螺旋式基座，這樣就可將該電燈1旋轉至未顯 示的燈頭中且將主電壓供應至該電燈1。 本實施例中唯一的光源4配置在燈泡2中，此光源4以 發光二極體來形成。此光源4可受到控制，使其發出不同 光色的光束。然而，亦可在該燈泡2中配置至少二個光源4。 燈泡2可相對於該下部3而移動。本實施例中，該燈泡2 可圍繞該電燈1之縱軸A以相對於下部3而在二個方向中 旋轉。介面因此形成在區域5中。燈泡2和下部3藉由導 引元件而在機械上互相連接著，特別是在燈泡2上形成一 個或多個導引槽6。其接合至配置在下部3上的導引鼻7 中。於是，該位置可固定在燈泡2和下部3之縱軸方向A 中。這樣可防止瓦解或類似現象的發生。然後，藉由上述 構成，可確保圍繞該軸A之可旋轉性。 依據燈泡2和該下部3之間的相對位置，可對該電燈1 之特定的操作條件進行調整。上述二個組件之間每一可能 存在的可調整的相對位置對應於該電燈1之特定的操作方 式。特別是每一可能存在的可調整的相對位置就該電燈1 之光特性、光色或光效應而言對應於不同的操作條件。 以下將詳述上述機構。 第2圖中顯示第1圖之一部分，其以俯視圖的方式顯示 —種與圖面成垂直和成水平的切面圖。於第1圖中可辨認： -11- 200903559 於區域5中該燈泡2以與該下部3之外殼31相重疊的方式 配置在縱軸A之方向中。於此，該燈泡2在區域5中在面 向該下部3之此側上具有一種直徑，其小於該外殼3 1之直 徑。在該燈泡2之一外側2 1上在該區域5中形成一凸起8， 其例如可以是一種扣接栓或一種扣接鼻。 在該外殼3 1之一內側3 1 a上例如三個電性接觸區9，1 0 和11配置在周圍方向中，此三個電性接觸區互相隔開而定 位著。電性接觸區9至1 1在該軸A之縱向中觀看時配置在 相同的高度處。 各條片12，1 3，14和15分別相鄰且與電性接觸區9至 1 1相隔開而形成。各條片在徑向中延伸且在徑向中具有一 種長度，其大於各電性接觸區9至1 1之長度。 此外，在該內側3 1 a上配置一種導電元件1 6，其在本實 施例中是一種可撓性的片條，此片條由直接固定在內側3 1 a 上的末端點開始經由該條片1 2至1 5而延伸。藉由條片1 2 至15以及電性接觸區9至11之長度上的尺寸，則該導電元 件16在未負載的狀態下與各電性接觸區9至11相隔開而配 置著。 本實施例中，燈泡2在相對於該下部3之不同的三個位 置中作調整，此種調整的特徵在於，該三個電性接觸區9 至1 1在周圍方向中互相隔開而配置著。三個相對位置之每 一個位置都對應於一特定的操作方式。第2圖中顯示一種 圖解，其中設定一種第二相對位置，這是以下述方式來設 定：該凸起8在周圍方向中與第二電性接觸區10相鄰而配 -12- 200903559 置者 &凸起8須在徑向中設定尺寸，使該凸起8可在電 性接觸區9至11之一（本實施例中是電性接觸區10)的方向 中按壓該可擦性的導電元件16，且因此可在該導電元件16 和該電性接觸區1 〇之間產生一種電性接觸區。 此種閉合的接觸區可藉由一控制單元20(第4圖）來測 得’且因此可對該燈泡2和該下部3之間的相對位置所對 應的操作方式作調整。此控制單元2 0可配置在該外殻31 中〇 ή m 2 ffl開始’能以下述方式來對一操作方式繼續作調 整：例如’將該燈泡2在順時針方向中相對於該下部3而 旋轉’使該閉合的接觸區在導電元件1 6和電性接觸區1 0 之間打開’且隨後使該接觸在該導電元件1 6和電性接觸區 9之間閉合。這亦可藉由該控制單元2〇來測得。此外，藉 由條片12至15之配置和形式，則亦可在燈泡2和下部3 之間以觸覺方式測得一個別之已調整的位置，此乃因一種 卡住現象可分別經由條片1 2至1 5來查覺。此外，藉由上述 具有條片1 2至1 5的形式亦可在燈泡2和下部3之間確保一 已調整的相對位置能可靠地被固定著。這樣可防止該燈泡2 之不期望的偏移或旋轉。於是’亦可使電燈1達成一種高 的操作安全性。 此外’該燈泡2可圍繞該軸A而只在末端止動件1 7和 1 8之間的區段內來回地旋轉。越過該末端止動件1 7和18 而繼續旋轉是不可以的。發光特性選取時的旋轉動量且因 此亦是在燈泡2和下部之間相對移動時所需的旋轉動量小 200903559 於將該電燈1由燈頭旋轉出來時所需的旋轉動量。因此， 在電燈1已插入至燈頭中且已藉由燈泡2之旋轉而使操作 方式達成所期望的改變時，亦可將電燈1由燈頭中旋轉出 來。 第3圖中顯示第2圖之另一部分，其中顯示該外殼31之 內側3 1 a上的側視圖。條片1 2至1 5以及周圍方向中以相同 高度互相隔開而配置的電性接觸區9至11顯示在第3圖中。 第4圖中顯示該電燈1之已簡化的接線圖。所示的光源4 是與一驅動單元19相連接，該驅動單元19又與控制單元 20相連接。由該控制單元20可發出色頻紅、綠、藍所需的 特定値至該驅動單元1 9，此時可適當地控制該光源4。於 是，可對彩色表中所有可能的彩色進行調整。該接線圖另 外顯示一種類比輸入端2 1和該電燈1之區域5，其中顯示 了多個滑動接觸區，且與第2、3圖之形式不同而顯示了四 個不同的電性接觸區。於是，可對該燈泡2相對於該下部3 之四個不同的相對位置進行調整且因此可定義該電燈丨$ 四種不同的操作方式。 如第4圖所示，藉由一種分壓器以依據該燈泡2和該下 部3之間的相對位置且因此亦依據一電性接觸區的接觸情 況（第4圖中有四個不同的接觸區；第2、3圖中有三個不同 的接觸區9至11)來產生一種適當的電壓信號，其由該控制 單元20(特別是一種微處理器）來測得。於是，亦能只以該 控制單元20之一接腳來測得及評估該電燈1之全部的接，線 200903559 【圖式簡單說明】 第1圖 本發明的電燈之實施例之側視圖。 第2圖 顯示第1圖之電燈的一部分之圖解 第3圖 是第2圖之側視圖。 第4圖 操作第1圖之電燈用的電路配置。 【主要元件符號說明】 A 縱軸 1 電燈 2 燈泡 3 下部 4 光源 5 區域 6 導引槽 7 導引鼻 8 凸起 9〜1 1 電性接觸區 1 2〜1 5 條片 16 導電元件 17、18 末端止動件 19 驅動單元 20 控制單元 2 1 類比輸入端 3 1 外殼 3 1 a 內側 32 基座 -15-200903559 IX. Description of the Invention: [Technical Field] The present invention relates to an electric lamp and a method of operating such an electric lamp. [Prior Art] An electric lamp in the form of a so-called rear view lamp (RetroUmp) is known which has an incandescent lamp as a light source and the purpose of this light source is to generate light. Such a rear view lamp may also have a light emitting diode as a light source. Light color or light effects can also be produced depending on the technology of the light-emitting diode. The change of the light characteristics, light color and light effect of the conventional light-emitting medium can only be achieved by the following means: that is, the user influences the corresponding light characteristic, light color or light effect by the switching sequence on the optical switch. . This effect in the rear view light via the optical switch can be costly and will only occur in some states. SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric lamp and an operating method of such an electric lamp, whereby the optical characteristics can be varied and less expensive. The above object is achieved by an electric lamp having the features of the third aspect of the patent application and a method of operating an electric lamp having the features of claim 14 of the patent application. The electric lamp of the present invention includes a lower portion and a bulb connected to the lower portion. At least one light source is disposed in the bulb. The bulb can be moved relative to the lower portion. Therefore, the field of application of the lamp can vary and can be broadly expanded. In particular, various special operating conditions can be adjusted during operation of the lamp depending on the position of the lamp relative to the lower portion. There are at least two different locations in which the light bulb can be configured for this lower part in 200903559. Each position corresponds to the individual mode of operation or operating conditions of the lamp. In a particularly simple and efficient manner, the lamp of the above-described form can be used to change the optical characteristics, light color or light effect less frequently. Thus, it is only necessary to adjust the position of the bulb relative to the lower portion. This relative position adjustment can be performed prior to operation of the lamp, but can also be performed during operation of the lamp. In particular, when the lamp is used in a lamp cap and supplied with a main power source, the lamp can be moved relative to the lower portion during operation and another special mode of operation is set accordingly. Preferably, the bulb is rotatable relative to the lower portion about a longitudinal axis of the lamp. With such a particularly simple movement, it is intuitive and easy for a user to adjust the new position of the bulb relative to the lower portion, and thus it is also possible to reliably adjust a new operation mode. . Preferably, the light source is disposed in the bulb to produce a beam of light having at least two colors of light. Preferably, the light-emitting diode is used as the light source. Then, depending on the control method, a light source can emit light beams of different light colors according to a special control method. The lamp can also be designed to have at least two light sources that are disposed in the bulb. The lower portion has a base or a housing and a base that is coupled to the housing. Preferably, the bulb is movably coupled to the housing. Preferably, the bulb is disposed in the housing at least in a regional manner. This means that the bulb has a diameter 'which is smaller than the diameter of the lower portion' on the end facing the lower portion (particularly the lower outer casing), in particular smaller than the diameter of the outer casing of the lower portion. In this interlaced section of the lamp of 200903559, the lower portion surrounds the bulb completely in a circular manner. Preferably, on the one hand, a complementary charging element is formed in the lower housing and on the other hand in the bulb, whereby the bulb and the lower portion can be fixed in the longitudinal direction of the lamp and can then be surrounded by the longitudinal direction The shaft performs a rotary movement. Thus, the two components, the bulb and the lower portion, can be positioned in the longitudinal direction and then rotated about the longitudinal axis to ensure relative mobility. Thus, the mechanical stability of the lamp is ensured and a variable movement between the components can then be achieved. In particular, it can be designed to form a guiding groove on the bulb which is gripped in the guiding nose in the lower part and thus ensures that on the one hand it can be fixed together and on the other hand it can be rotated. The movability of the bulb relative to the lower portion (especially the rotary movement) is preferably limited by two end stops. Especially in the annular direction around the longitudinal axis of the lamp, this movability can therefore be limited by the end stops. With such a configuration, the degree of clarity can be improved when the respective operating conditions are adjusted, and the mechanical stability of the lamp can be improved. In addition, by using the above configuration, the above adjustment phenomenon can be preferably measured by a user in a tactile sense, because the user can recognize: the specific specific relative when starting from the end stopper Where can I get to where I am. Preferably, a projection is formed on the outer side of the bulb which is snapped into the lower fastening position depending on the movement of the bulb. With this form, the adjustment of the mode of operation and the adjustment of the relative position between the bulb and the lower portion can be greatly improved again. Then, when a user externally makes the projection and fastening position of the lamp on the cylinder 230903559 invisible in the lower portion, a specific position can be accurately adjusted, since the position can be detected as a tactile sense. Feedback. The projection on the outside of the bulb serves in particular as a snap or buckle nose. Preferably, at least two of the electrically spaced apart contact regions are formed on the inside of the lower portion, particularly in the lower outer casing. One of these electrical contact areas can be contacted depending on the relative position of the bulb. The electrical contact regions on the lower portion are disposed adjacent to each other and spaced apart from each other, preferably a flexible conductive member is disposed between the electrical contact region and the protrusion of the bulb. In particular, a flexible strip is spaced from the electrical contact zone. Preferably, the conductive element is in contact with one of the electrical contact regions via the protrusion by movement of the bulb relative to the lower portion, and specific operating conditions associated with the contacted electrical contact region can be Adjustment. The illuminating properties of the lamp can be changed before or during the switch-on. The amount of rotation required to rotate the bulb relative to the lower portion to select the illuminating characteristic is less than the rotational momentum of the cap. This means that when the electric lamp is rotated into a lamp cap or inserted into a lamp cap in its terminal state, the lamp can not be rotated out of the lamp cap by the rotation of the lamp, as long as one of the end stops is still not When reaching between the bulb and the lower part. If the electric lamp is to be inserted into the above-mentioned lamp cap, in particular when it is to be rotated into the lamp cap, the bulb is first moved relative to the lower portion by the preset of the rotational momentum, and only when an end stop is reached The two components (bulb and lower) are evenly rotated into the base until the end position. The bulb and the lower portion continue to rotate evenly after entering the end stop and proceed to the 200903559 line. Then, when the lamp is rotated into the lamp head to achieve an equalization, the end stop has been reached, and the rotational momentum of the entire lamp into the lamp head is equal to the movement of the bulb relative to the lower portion. Rotational momentum. Therefore, when the electric lamp is introduced into the lamp cap and the electric lamp is taken out from the lamp cap, the bulb must first be rotated relative to the lower portion until an end stop, and after reaching the end stop, the entire lamp is moved to the The end position in the base is removed from or removed from the end position and is therefore also removed from the base. Since the light source can preferably be constructed of a light-emitting diode, the bulb is hardly heated, so that the bulb can be contacted by a user during operation of the lamp. Thus, the lamp can also be rotated relative to the lower portion at any point in time during operation of the lamp, and thus the mode of operation can also be changed during operation. The relative position between the bulb and the lower portion corresponds to a particular contact condition of the electrically conductive element with the electrical contact area on the lower portion, as determined by a control unit. This control unit can be arranged in the lower housing. The electrical contact areas disposed on the inner or inner side of the outer casing are preferably separated by strips that have been oriented in the radial direction. The conductive member is disposed on the strip and disposed in a state spaced apart from an electrical contact region in which the projection on the outer side of the bulb does not apply pressure to the conductive member or the bulb is in electrical contact The direction of the zone is under pressure. The relative position between the bulb and the lower portion and the particular contact associated with an electrical contact zone can be achieved by a voltage divider. A control unit calculates the voltage signal. In particular, one of the control units (Pin), 200903559, is sufficient to measure and calculate all switching states. The color is varied by the frequency of the main voltage (especially about 50 Hz) and a plurality of such lamps can be made in one step and simultaneously at the same time. In a multi-illumination system, the movement of the electric lamp relative to the lower portion caused by the rotation of the operation mode can be performed in another manner. For example, a color change opposite to the other electric lamp can be performed, and a color change is provided. Free running mode. Flashing light, dimming, or other similar actions. In another switching state, the user can select the light without having to replace the illuminating medium, or the optical switch is connected to the operating method of the electric lamp of the present invention, the electric part and a movable part relative to the lower part The light bulb has one light source, and a specific position is adjusted between the light bulb and the lower portion, and the special operation mode corresponding to the position of the light lamp is adjusted according to the adjusted bit operation. An advantageous form of the electric lamp of the present invention can be considered as the manner of the present invention. Embodiments of the present invention will be described in detail below with reference to the drawings. [Embodiment] The same elements or elements having the same mode of operation are denoted by the symbols in the respective drawings. In the figure 1, a side view of the electric lamp 1 is shown, and the electric lamp of the electric lamp can also be adjusted by a kind of the same electric lamp in the illumination system due to the rotation of the lamp. In addition, it can also produce a localized stylization by the illuminating characteristics of the bulb rotation. The lamp has a favourable identical reference to the method in which the two components are placed in the light bulb for the condition or operation of the lamp. The rear view lamp (Retrolamp) is formed as so-called -10-200903559. This electric lamp 1 comprises a bulb 2 which is formed of plastic. Furthermore, the electric lamp 1 comprises a lower portion 3 having a housing 31 and a base 32 attached to the housing 31. This base 32 forms a screw base in this embodiment, so that the lamp 1 can be rotated into a lamp holder not shown and a main voltage is supplied to the lamp 1. The only light source 4 in this embodiment is disposed in the bulb 2, which is formed by a light-emitting diode. This light source 4 can be controlled to emit light beams of different light colors. However, at least two light sources 4 can also be arranged in the bulb 2. The bulb 2 is movable relative to the lower portion 3. In this embodiment, the bulb 2 is rotatable about the longitudinal axis A of the electric lamp 1 in two directions with respect to the lower portion 3. The interface is thus formed in the region 5. The bulb 2 and the lower portion 3 are mechanically connected to each other by a guiding member, in particular, one or a plurality of guiding grooves 6 are formed in the bulb 2. It is joined to the guide nose 7 which is arranged on the lower part 3. Thus, the position can be fixed in the longitudinal direction A of the bulb 2 and the lower portion 3. This will prevent the occurrence of disintegration or the like. Then, with the above configuration, the rotatability around the axis A can be ensured. Depending on the relative position between the bulb 2 and the lower portion 3, the particular operating conditions of the lamp 1 can be adjusted. Each of the possible adjustable relative positions between the two components corresponds to a particular mode of operation of the lamp 1. In particular, each of the adjustable relative positions that may be present corresponds to different operating conditions in terms of the light characteristics, the color of the light or the light effect of the electric lamp 1. The above mechanism will be described in detail below. Fig. 2 shows a portion of Fig. 1 which is shown in plan view as a cross-sectional view perpendicular to the plane and horizontal. It is identifiable in Fig. 1: -11- 200903559 In the region 5, the bulb 2 is disposed in the direction of the longitudinal axis A so as to overlap the outer casing 31 of the lower portion 3. Here, the bulb 2 has a diameter in the region 5 on the side facing the lower portion 3 which is smaller than the diameter of the outer casing 31. A projection 8 is formed in the region 5 on one of the outer sides 2 of the bulb 2, which may be, for example, a snap pin or a snap nose. On the inner side 3 1 a of one of the outer casings 31, for example, three electrical contact regions 9, 10 and 11 are disposed in the peripheral direction, and the three electrical contact regions are spaced apart from each other and positioned. The electrical contact regions 9 to 11 are disposed at the same height when viewed in the longitudinal direction of the axis A. Each of the strips 12, 13, 14 and 15 is adjacent to and spaced apart from the electrical contact regions 9 to 11. Each strip extends in the radial direction and has a length in the radial direction that is greater than the length of each of the electrical contact regions 9 to 11. Furthermore, a conductive element 16 is arranged on the inner side 3 1 a, which in the present embodiment is a flexible strip which starts from the end point which is fixed directly on the inner side 3 1 a. The sheets extend from 1 to 15 . By the dimensions of the strips 12 to 15 and the length of the electrical contact regions 9 to 11, the conductive member 16 is disposed apart from the respective electrical contact regions 9 to 11 in an unloaded state. In the present embodiment, the bulb 2 is adjusted in three different positions relative to the lower portion 3, and the adjustment is characterized in that the three electrical contact regions 9 to 11 are arranged apart from each other in the peripheral direction. With. Each of the three relative positions corresponds to a particular mode of operation. An illustration is shown in Fig. 2 in which a second relative position is set, which is set in such a manner that the projection 8 is adjacent to the second electrical contact zone 10 in the peripheral direction and is provided by the -12-200903559. The protrusion 8 must be sized in the radial direction so that the protrusion 8 can press the erasable in the direction of one of the electrical contact regions 9 to 11 (the electrical contact region 10 in this embodiment). Conductive element 16, and thus an electrical contact region, can be created between the conductive element 16 and the electrical contact region 1 。. Such a closed contact zone can be measured by a control unit 20 (Fig. 4) and thus the mode of operation corresponding to the relative position between the bulb 2 and the lower section 3 can be adjusted. The control unit 20 can be configured in the housing 31 〇ή m 2 ffl start 'can continue to adjust for an operation mode in the following manner: for example, 'the bulb 2 is in a clockwise direction relative to the lower portion 3 Rotating 'opens the closed contact zone between the conductive element 16 and the electrical contact zone 10' and then closes the contact between the conductive element 16 and the electrical contact zone 9. This can also be measured by the control unit 2〇. In addition, by the arrangement and form of the strips 12 to 15, a different adjusted position can be measured tactilely between the bulb 2 and the lower portion 3, because a jamming phenomenon can be respectively performed via the strips. 1 2 to 1 5 to find out. Further, by the above-described form having the strips 12 to 15 , it is also possible to ensure that an adjusted relative position between the bulb 2 and the lower portion 3 can be reliably fixed. This prevents undesired shifting or rotation of the bulb 2. Thus, the electric lamp 1 can also achieve a high operational safety. Furthermore, the bulb 2 is rotatable about the axis A and only back and forth within the section between the end stops 17 and 18. It is not possible to continue the rotation beyond the end stops 17 and 18. The rotational momentum when the illuminating characteristic is selected and thus the rotational momentum required when the relative movement between the bulb 2 and the lower portion is small is 200903559. The amount of rotational momentum required when the electric lamp 1 is rotated out of the cap. Therefore, the electric lamp 1 can also be rotated out of the base when the electric lamp 1 has been inserted into the base and the desired change has been achieved by the rotation of the bulb 2. Another portion of Fig. 2 is shown in Fig. 3, which shows a side view of the inner side 31a of the outer casing 31. The strips 12 to 15 and the electrical contact regions 9 to 11 which are disposed apart from each other at the same height in the peripheral direction are shown in Fig. 3. A simplified wiring diagram of the electric lamp 1 is shown in Fig. 4. The light source 4 shown is connected to a drive unit 19, which in turn is connected to the control unit 20. The control unit 20 can emit a specific defect required for the color frequencies red, green, and blue to the driving unit 109, and the light source 4 can be appropriately controlled at this time. Thus, all possible colors in the color table can be adjusted. The wiring diagram additionally shows an analog input terminal 21 and a region 5 of the lamp 1 in which a plurality of sliding contact regions are shown, and four different electrical contact regions are shown differently from the forms of Figures 2 and 3. . Thus, the four different relative positions of the bulb 2 relative to the lower portion 3 can be adjusted and thus the four different modes of operation of the lamp 丨$ can be defined. As shown in Fig. 4, a voltage divider is used to determine the relative position between the bulb 2 and the lower portion 3 and thus also the contact condition of an electrical contact zone (four different contacts in Fig. 4). Zones; there are three different contact zones 9 to 11 in Figures 2 and 3) to generate an appropriate voltage signal which is measured by the control unit 20, in particular a microprocessor. Therefore, it is also possible to measure and evaluate all the connections of the electric lamp 1 with only one of the pins of the control unit 20, line 200903559 [Simplified description of the drawings] Fig. 1 is a side view of an embodiment of the electric lamp of the present invention. Fig. 2 is a view showing a part of the electric lamp of Fig. 1. Fig. 3 is a side view of Fig. 2. Fig. 4 Operation of the circuit configuration for the lamp of Fig. 1. [Main component symbol description] A Vertical axis 1 Lamp 2 Lamp 3 Lower 4 Light source 5 Area 6 Guide groove 7 Guide nose 8 Bump 9~1 1 Electrical contact area 1 2~1 5 Strip 16 Conductive element 17, 18 End stop 19 Drive unit 20 Control unit 2 1 Analog input 3 1 Housing 3 1 a Inside 32 Base -15-