200832498 九、發明說明： 【發明所屬之技術領域】 本發明係一種如申請專利範圍第1項之前序部分所述 之鹵素白熾燈。 【先前技術】 例如在歐洲專利EP 1 667 205 A2中揭示過此種鹵素 白熾燈。此專利揭示之鹵素白熾燈具有兩根被燈容器封住 的燈絲，這兩根燈絲的電功率並不相同。其中電功率較大 的第一根燈絲是用於當燈被裝在汽車之前照燈內以產生遠 光時，而電功率較小的第二根燈絲則是用於產生白天行駛 用的燈光。 【發明內容】 本發明的目的是提出一種與前面所述同類的鹵素白熾 燈，而且當該鹵素白熾燈被裝在汽車之前照燈內，其在白 天行駛用燈光模式下並不會對對向來車造成眩光。 ί未用具有申g靑專利車E圍1之特徵的鹵素白織燈即可達 到上述目的。附屬申請專利項目之內容爲本發明之各種有 利的實施方式。 本發明之鹵素白熾燈具有兩根設置在一個燈容器內的 燈絲，其中，在運轉時第一根燈絲電功率大於第二根燈絲 的電功率，且這兩根燈絲的構造方式使第二根燈絲在運轉 時產生的売度低於第一根燈絲產生的亮度。在將本發明的 鹵素白熾燈裝在汽車之前照燈內以產生白天行駛用的燈光 時’由於電功率較小的第二根燈絲產生的亮度低於產生遠 200832498 光用的第一根燈絲的亮度（相當於標準遠光燈產生的亮 度），因此第二根燈絲發出的燈光不會對對向來車造成眩 光。 爲了具有良好的遠光功能，第一根燈絲需要能夠發出 高亮度的燈光，而且在相同的工作電壓下第一根燈絲產生 的亮度最好是負責產生白天行駛之燈光的第二根燈絲產生 的亮度的2至3.7 5倍，以免白天行駛之燈光對對向來車造 成眩光。本發明之鹵素白熾燈的第一根燈絲產生的亮度最 好是在2.3乂107〇(1/1112至3.4\107〇(1/1112之間，第二根燈絲產生 的亮度最好是在〇.6xl07cd/m2至1.7xl07cd/m2之間。 一種有利的方式是至少將第二根燈絲製作成單一螺旋 燈絲，且螺距因數（也就是螺距除以螺旋線之直徑所得的 商）介於大於或等於1.65至小於或等於2.0之間。藉由單一 螺旋燈絲能夠產生比雙重螺旋燈絲更均勻的光分佈。由於 製作成單一螺旋燈絲之第二根燈絲具有較大的螺距因數 (介於1.65至2.0之間），因此能夠以很簡單的方式將第二 根燈絲的亮度保持在較低的程度，原因是較大的螺距表示 燈絲之各個螺旋線之間的距離較大。此外，第二根燈絲的 其他邊界條件也會對以上提及之第二根燈絲的螺距因數的 範圍造成影響，例如第二根燈絲的電功率及工作電壓的大 小等邊界條件。此外，也可以加大第二根燈絲之單一螺旋 線的外徑及長度，這樣被汽車之前照燈反光罩投射到的螺 旋面積就會相應的變大。不過由於反射罩的構造關係會使 加大的範圍會受到很大的限制。由於本發明之第二根燈絲 200832498 是一種單一螺旋燈絲，而且具有較大的螺距因數，因此第 二根燈絲能夠產生較低的亮度及均勻的光分佈，也就是說 第二根燈絲產生的白天行駛用的燈光對不同的視角而言都 具有更好的可見度。另外一個優點是這樣做還可以延長第 二根燈絲的使用壽命，這是因爲螺距因數較大代表燈絲之 各個螺旋線之間的距離較大，因此所承受的負荷及鎢絲揮 發也較小。 最好是兩根燈絲都是單一螺旋燈絲，以便藉由第一根 燈絲發出的遠光也能達到均勻的光分佈。但是第一根燈絲 的螺距因數小於第二根燈絲的螺距因數，因此第一根燈絲 的亮度會大於第二根燈絲的亮度。尤其是產生遠光用的第 一根燈絲的螺距因數要小於1 .6 5，以便能夠產生具有高亮 度的遠光。 爲了盡可能減少兩根燈絲的鎢絲揮發，最好是以惰性 氣體（例如氙、氪、氬）或惰性氣體的混合氣體作爲塡充氣 體將本發明之鹵素白熾燈之燈容器的內部塡滿，且該塡充 氣體的冷塡充壓力（也就是說在25 °C下的壓力）介於3 bar 至1 8 b a r之間。 鹵素在塡充氣體中的濃度最好是在20 ppm至45 0 ppm 之間，而且所使用的鹵素最好是溴及/或氯，以免燈容器變 黑。 以下配合圖式及一種有利的實施例對本發明的內容做 進一步的說明。 【實施方式】 200832498 第1圖顯示一個作爲汽車之前照燈的本發明之鹵素白 熾燈。該鹵素白熾燈具有一個圓柱體狀的玻璃製燈容器 (1 〇) ’在該燈容器（1 〇)內裝有兩根平行於燈容器軸的燈絲 (2 1 ’ 2 2 )。燈絲（2 1，2 2 )可分別產生遠光及白天行駛用的燈 光。燈絲（21)之螺旋線抽頭（21 1，212)及燈絲（22)之螺旋線 抽頭（2 2 1 ’ 2 2 2 )都有纏繞鉬薄膜’以便在焊接螺旋線抽頭 (21 1 ’ 212)及螺旋線抽頭（221，222)時，電流能夠流入燈絲 (2 1 ’ 2 2 )。燈容器（1 〇 )的一個被密封住的終端（丨丨）固定在燈 座（3 0)中。第一根燈絲（21)被一個由鉬薄板構成的遮光罩 (4)部分環繞住。遮光罩（4)被第一條電流引線（51)支撐住。 第一條電流引線（5 1 )和第二及第三條電流引線（5 2，5 3 )共同 負責兩根燈絲（2 1，2 2)的電流供應。爲執行供電工作，第 一根燈絲（2 1 )的第一個螺旋線抽頭（2 1 1 )經由凸焊與遮光罩 (4)的一個焊接突出部（41)焊接在一起，因而經由遮光罩（4) 與弟 條電流引線（5 1 )形成導電連接。第一*根燈絲（2 1 )的第 二個螺旋線抽頭（2 12)與第三條電流引線（5 3)焊接在一起。 第二根燈絲（2 2 )的第一個螺旋線抽頭（2 2 1 )也是與第三條電 流引線（5 3)焊接在一起。第二根燈絲（22)的第二個螺旋線抽 頭（222)與第二條電流引線（5 2)焊接在一起。這3條電流引 線（5 1 ’ 5 2 ’ 5 3 )都是以鉬製成，而且都是被固定在兩片彼 此熔接在一起的石英玻璃接片（1 3 )之間，因此這3條電流 引線（5 1 ’ 52 ’ 5 3)均位於一個共同的平面上。這3條電流 引線（5 1，52，53)穿過燈容器（10)之密封終端（1丨），並分別 以與3個電接點（61，62，63)中的一個電接點形成導電連 200832498 接。這3個電接點（61，62，63)均突出於燈座（30)的側面’ 並使鹵素白熾燈與電流接通。燈座（30)是一個由金屬及塑 膠所構成，也就是說具有一個金屬製的燈座段（31)及一個 塑膠製的燈座段（32)。燈容器（10)被固定在金屬製的燈座段 (3 1)中，同時塑膠製的燈座段（3 2)則具有鹵素白熾燈的電接 點（6 1，62，63)。一個具有3個彈簧鉤（3 1 1)及3個對接搭 片（3 12)的金屬彈簧圈使鹵素白熾燈很容易就可以被安裝 在汽車之前照燈反光罩中。在鹵素白熾燈被安裝到前照燈 內之後，前照燈反光罩的安裝開口的邊緣會被夾緊在彈簧 鉤（3 11)及對接搭片（3 12)之間。鹵素白熾燈在前照燈反光罩 之安裝開口中的側向固定是由彈簧片（3 4)負責，因此彈簧 片（3 4 1)是作用在彈簧鉤（3 1 1)及對接搭片（3 1 2 )之間的縱向 方向上。 第一根燈絲（2 1)是一種單一遠光螺旋燈絲，其正常工 作電壓爲13.2V或28V，電功率則介於55W至80W之間。 以下的表1及表3分別顯示本發明之鹵素白熾燈的第一實 施例及第二實施例之正常工作電壓爲1 3.2 V的第一根燈絲 (2 1)的規格。以正常工作電壓運轉時，遠光螺旋燈絲的亮 度大約是 2.9xl07cd/m2 。 第二根燈絲（22)是一種單一白天行駛用燈光螺旋燈 絲，其正常工作電壓爲1 3.2 V或2 8 V，電功率則介於1 7 W 至22W之間。以下的表2及表4分別顯示本發明之鹵素白 熾燈的第一實施例及第二實施例之正常工作電壓爲1 3.2 V 的第二根燈絲（2 2)的規格。以正常工作電壓運轉時，白天 200832498 行駛用燈光螺旋燈絲的亮度大約是0.9x1 0 7cd/m2。 螺距是螺旋燈絲之兩條相鄰螺旋線之間距及螺旋線之 厚度/直徑的總和。螺距因數是螺距除以螺旋線之直徑所得 的商。核心因數是螺旋燈絲的內徑除以螺旋線的直徑所得 的商。 表1 :本發明之鹵素白熾燈的第一實施例之正常工作 電壓爲1 3.2 V的遠光螺旋燈絲之燈絲規格 核心因數： 4.96 螺距： 2 4 0 μι 螺距因數： 1 .5 匝數： 17.50 燈絲長度： 4.4 0 rr 燈絲外徑·’ 1 . 1 2 ir 表2 :本發明之鹵素白熾燈的第一實施例之正常工作 電壓爲1 3.2 V的白天行駛用燈光螺旋燈絲之燈絲規格 核心因數： 7.09 螺距： 1 50μι 螺距因數z 1.700 匝數： 28.00 燈絲長度： 4.2mr 燈絲外徑： 0.79ir 200832498 表3 :本發明之鹵素白熾燈的第二實施例之正常工作 電壓爲1 3.2 V的遠光螺旋燈絲之燈絲規格 核心因數： 6.0 螺距： 270 μ 螺距因數： 1 .6 匝數： 15.5 燈絲長度： · 4.3m 燈絲外徑： 1 .4m 表4:本發明之鹵素白熾燈的第二實施例之正常工作 電壓爲1 3.2 V的白天行駛用燈光螺旋燈絲之燈絲規格 核心因數： 7.5 螺距： 1 50μ 螺距因數： 1 . 8 匝數： 27.0 燈絲長度： 4.2m 燈絲外徑： 0.8m 【簡單圖式說明】 第1圖：本發明之鹵素白熾燈的一個有利的實施例的 側視圖。 【元件符號說明】 4 遮光罩 10 燈容器 11 終端 -11- 200832498 13 石英玻璃接片 2 1 第一根燈絲 22 第二根燈絲 30 燈座 3 1，32 燈座段 34 彈簧片 4 1 焊接突出部 51， 52 ， 53 電流引線 6 1，6 2，6 3 電接點 2 1 1，2 1 2，2 2 1，2 2 2 螺旋線抽頭 311 彈簧鉤 3 12 對接搭片</ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; [Prior Art] Such a halogen incandescent lamp is disclosed, for example, in the European patent EP 1 667 205 A2. The halogen incandescent lamp disclosed in this patent has two filaments sealed by a lamp vessel, the electrical power of the two filaments being different. The first filament having a larger electric power is used when the lamp is installed in the front light of the car to generate a high beam, and the second filament having a smaller electric power is used to generate the light for daytime driving. SUMMARY OF THE INVENTION It is an object of the present invention to provide a halogen incandescent lamp of the same kind as described above, and when the halogen incandescent lamp is installed in a car front light, it does not contradict the light mode during daytime driving. The car caused glare. ί The above purpose can be achieved without using a halogen white woven lamp having the characteristics of the patent car E 1 . The contents of the affiliated patent application are various advantageous embodiments of the present invention. The halogen incandescent lamp of the present invention has two filaments disposed in a lamp vessel, wherein the first filament electrical power is greater than the electrical power of the second filament during operation, and the two filaments are constructed in such a manner that the second filament is The intensity generated during operation is lower than the brightness produced by the first filament. When the halogen incandescent lamp of the present invention is installed in a headlight of a car to generate a daylight running light, 'the brightness due to the second filament having a smaller electric power is lower than the brightness of the first filament used to generate the far 200832498 light. (Equivalent to the brightness produced by the standard high beam), so the light from the second filament will not glare the opposite car. In order to have a good high beam function, the first filament needs to be able to emit high brightness light, and at the same working voltage, the brightness of the first filament is preferably generated by the second filament responsible for generating the daytime driving light. The brightness is 2 to 3.7 5 times, so that the lights that are driven during the day can cause glare to the opposite car. The brightness of the first filament of the halogen incandescent lamp of the present invention is preferably between 2.3 乂 107 〇 (1/1112 to 3.4 \107 〇 (1/1112, the brightness of the second filament is preferably 〇) Between .6xl07cd/m2 and 1.7xl07cd/m2. An advantageous way is to make at least the second filament into a single spiral filament, and the pitch factor (that is, the quotient of the pitch divided by the diameter of the helix) is greater than or Equivalent to 1.65 to less than or equal to 2.0. A single spiral filament can produce a more uniform light distribution than a double spiral filament. The second filament produced as a single spiral filament has a larger pitch factor (between 1.65 and 2.0) Therefore, the brightness of the second filament can be kept low in a very simple manner, because a larger pitch means that the distance between the individual spirals of the filament is larger. In addition, the second filament Other boundary conditions may also affect the range of the pitch factor of the second filament mentioned above, such as the boundary condition of the electrical power of the second filament and the magnitude of the operating voltage. In addition, the second condition may be increased. The outer diameter and length of the single spiral of the filament, so that the area of the spiral projected by the reflector of the car's headlights will be correspondingly larger. However, due to the structural relationship of the reflector, the increased range will be greatly limited. Since the second filament 200832498 of the present invention is a single spiral filament and has a large pitch factor, the second filament can produce a lower brightness and a uniform light distribution, that is, a second filament. The light used for daytime driving has better visibility for different viewing angles. Another advantage is that this also extends the life of the second filament because the larger pitch factor represents the spiral between the filaments. The distance is large, so the load and the tungsten filaments are less volatile. It is preferable that the two filaments are single spiral filaments so that a uniform light distribution can be achieved by the high beam emitted from the first filament. The pitch factor of the first filament is smaller than the pitch factor of the second filament, so the brightness of the first filament is greater than the brightness of the second filament In particular, the first filament for generating high beam has a pitch factor of less than 1.65 in order to be able to produce high beam with high brightness. In order to minimize the evaporation of the tungsten filaments of the two filaments, it is preferable to use an inert gas ( A mixed gas of, for example, helium, neon, argon or an inert gas is used as a helium gas-filling body to fill the interior of the lamp vessel of the halogen incandescent lamp of the present invention, and the cold charging pressure of the helium gas-filling body (that is, at 25 ° C) The pressure under) is between 3 bar and 18 bar. The concentration of halogen in the gassing body is preferably between 20 ppm and 45 0 ppm, and the halogen used is preferably bromine and/or chlorine. In order to avoid blackening of the lamp container, the content of the present invention will be further described below with reference to the drawings and an advantageous embodiment. [Embodiment] 200832498 Fig. 1 shows a halogen incandescent lamp of the present invention as a headlight for a car. The halogen incandescent lamp has a cylindrical glass bulb (1 〇) in which two filaments (2 1 ' 2 2 ) parallel to the axis of the lamp vessel are mounted. The filaments (2 1,2 2 ) respectively produce high beam and daylight driving lights. The spiral taps (21 1,212) of the filament (21) and the spiral taps (2 2 1 ' 2 2 2 ) of the filament (22) are wound with a molybdenum film 'for welding the spiral taps (21 1 ' 212) With the spiral taps (221, 222), current can flow into the filament (2 1 ' 2 2 ). A sealed terminal (丨丨) of the lamp vessel (1 〇) is fixed in the socket (30). The first filament (21) is partially surrounded by a hood (4) composed of a molybdenum sheet. The hood (4) is supported by the first current lead (51). The first current lead (5 1 ) and the second and third current leads (5 2, 5 3 ) are responsible for the current supply of the two filaments (2 1, 2 2). In order to perform the power supply work, the first spiral tap (2 1 1 ) of the first filament (2 1 ) is welded to a soldering projection (41) of the hood (4) via the projection welding, thereby passing through the hood (4) Form an electrically conductive connection with the strap current lead (5 1 ). The second spiral tap (2 12) of the first * filament (2 1 ) is soldered to the third current lead (53). The first spiral tap (2 2 1 ) of the second filament (2 2 ) is also soldered to the third current lead (53). The second spiral tap (222) of the second filament (22) is soldered to the second current lead (52). The three current leads (5 1 ' 5 2 ' 5 3 ) are made of molybdenum and are fixed between two pieces of quartz glass tabs (1 3 ) that are welded together, so these three The current leads (5 1 ' 52 ' 5 3) are all on a common plane. The three current leads (5 1, 52, 53) pass through the sealed terminal (1丨) of the lamp vessel (10) and are respectively electrically connected to one of the three electrical contacts (61, 62, 63). Form conductive connection 200832498. These three electrical contacts (61, 62, 63) protrude from the side of the socket (30) and cause the halogen incandescent lamp to be connected to the current. The lamp holder (30) is made of metal and plastic, that is, has a metal base segment (31) and a plastic base segment (32). The lamp vessel (10) is fixed in a metal base segment (3 1), while the plastic socket segment (32) has an electrical contact (6 1, 62, 63) for the halogen incandescent lamp. A metal coil with 3 spring hooks (3 1 1) and 3 butt straps (3 12) allows the halogen incandescent lamp to be easily installed in the car's front reflector. After the halogen incandescent lamp is installed in the headlight, the edge of the mounting opening of the headlamp reflector is clamped between the spring hook (3 11) and the butt strap (3 12). The lateral fixation of the halogen incandescent lamp in the mounting opening of the headlight reflector is the responsibility of the spring leaf (34), so the spring piece (3 4 1) acts on the spring hook (31) and the butt strap ( 3 1 2 ) in the longitudinal direction. The first filament (2 1) is a single high-beam spiral filament with a normal operating voltage of 13.2V or 28V and an electrical power between 55W and 80W. Tables 1 and 3 below show the specifications of the first embodiment of the halogen incandescent lamp of the present invention and the first filament (2 1) of the second embodiment having a normal operating voltage of 13.2 V, respectively. When operating at normal operating voltage, the brightness of the high beam spiral filament is approximately 2.9xl07cd/m2. The second filament (22) is a single daytime running light spiral with a normal operating voltage of 13.2 V or 2 8 V and an electrical power between 1 7 W and 22 W. Tables 2 and 4 below show the specifications of the second filament (2 2) of the first embodiment and the second embodiment of the halogen incandescent lamp of the present invention having a normal operating voltage of 13.2 V, respectively. When operating at normal operating voltage, the brightness of the light spiral filament for driving during the day 200832498 is approximately 0.9x1 0 7cd/m2. The pitch is the sum of the distance between two adjacent spirals of the spiral filament and the thickness/diameter of the spiral. The pitch factor is the quotient of the pitch divided by the diameter of the helix. The core factor is the quotient of the inner diameter of the spiral filament divided by the diameter of the helix. Table 1: The filament of the high beam spiral filament of the first embodiment of the halogen incandescent lamp of the present invention having a normal operating voltage of 13.2 V. Core factor: 4.96 Pitch: 2 4 0 μι Pitch factor: 1.5. Number of turns: 17.50 Filament length: 4.4 0 rr Filament outer diameter · ' 1 . 1 2 ir Table 2: The first embodiment of the halogen incandescent lamp of the present invention has a normal working voltage of 13.2 V. : 7.09 Pitch: 1 50μι Pitch factor z 1.700 Number of turns: 28.00 Filament length: 4.2mr Filament outer diameter: 0.79ir 200832498 Table 3: The normal operating voltage of the second embodiment of the halogen incandescent lamp of the present invention is 1 3.2 V Light spiral filament core factor: 6.0 Pitch: 270 μ Pitch factor: 1.6. Number of turns: 15.5 Filament length: · 4.3m Filament outer diameter: 1.4m Table 4: Second implementation of the halogen incandescent lamp of the present invention For example, the normal operating voltage is 13.2 V. The filament of the daylighting filament is specified. Core factor: 7.5 Pitch: 1 50μ Pitch factor: 1. 8 Number of turns: 27.0 Filament length: 4.2 m Filament outer diameter: 0.8 m [Simple schematic description] Fig. 1 is a side view of an advantageous embodiment of the halogen incandescent lamp of the present invention. [Description of component symbols] 4 Hood 10 Lamp container 11 Terminal-11- 200832498 13 Quartz glass tab 2 1 First filament 22 Second filament 30 Lamp holder 3 1,32 Lamp holder segment 34 Spring piece 4 1 Welding protrusion Section 51, 52 , 53 Current lead 6 1,6 2,6 3 Electrical contact 2 1 1,2 1 2,2 2 1,2 2 2 Spiral tap 311 Spring hook 3 12 Butt strap