201215240 六、發明說明： 【發明所屬之技術領域】 本么月"及用於向強度放電燈之電極端逆 (back㈣補償方法。本發明亦涉及_種用來 = 放電燈之電子操作裝置，直可4 巧5$度 再可進行上述方法。 【先前技術】 依據申請專利範圍獨立項 $ <頰型’本發明是由古 度放電燈中用於電極端逆弧補償方法開始。 由円強 由 EP 1057376 Α1 φ p + T匕知—種電極尖 法，其將電流脈波施加至矩# μ 4。 心战型方 王矩形的操作電流且因 電極的成型。該電流脈波主I^ & 了貫現 種尖端，這樣會由於持續的 生長一 弧或甚至可完全補償該逆弧。 -電極的逆 【發明内容】 本發明的目的是提佴—你 端逆弧Cme)補償方;^用於高強度放電燈之電極 償該逆弧。 ，和細作裝置，藉此可較佳地補 依據本發明，就方法而一 ^ 而^上述目的是藉由一種高強 , 逆狐的補償方法來達成’其中傳 达至該尚強度放電燈之功査 且炙功率在一預定時段中以〆預定頻 率在下功率和上功率夕„ 曰’ s周變。此種調變可有利地使電 極尖端生長，這是藉由，，植〜 ^ ^ 尖端，，之效應所達成。，.、輪送至電極尖端且補償 該預定時段較佳是介於30秒和10分鐘之間。這是 補償該電極之逆弧時所需夕具 刀錄 ^箱—梱 汁而之最佳的時間區段。該預疋頻 201215240 率較佳是介於0.2赫和 本發明之方法之所期望 別佳時是介於〇. 5赫和 之方法之最大功率。 1 0赫之間。在此種調變頻率下， 的作用是最大的。該預定頻率特 5赫之間。因此，可確保本發明 在繼續發展之另一形式中，該調變頻率週期性地在 下頻率和上頻率之間變化。因此，該方法可較佳地針對 該電極之動態變化來調整。又，工作週期比— _〇)可在上功率和下功率之間變化特別是纟8〇 2 0之間.夔化。以此種措施，則本發明的方法可較 佳地針對不同的電極形式和電極材料來調整。 該下功率較佳是介於該高強度放電燈之額定功率之 〇 # 6 〇 /〇之間，且該上功率較佳是介於該高強度放電 燈之額定功率之90%和120%之間。在此種調變深度下， 本發明的方法之作用最大。 在另一實施方式中，該上功率由額定功率之9〇%至 2 0 /〇開始以夕個步驟而下降到額定功率之2 %至4 %。 此種進行方式較佳是使用在投影機已關閉且高強度放電 燈.fe地熄滅時，以確保能快速地再點燃。 就電子式操作裝置而言，本發明的目的是藉由一種 操作高強度放電燈用的電子式操作裝置來達成其中該 電子式操作裝置進行上述方法。 特別有利的是，該電子式操作裝置依據一關閉命令 而再操作該高強度放電燈達一預定時段。因此，在該預 定時段中’該上功率由額定功率之90%至1 20%開始以多 個步驟而下降到額定功率之2 5 %至4 〇 %。該預定時段較 201215240 佳是介於30秒和1 〇分鐘之間。藉由此種進行方式，則 該高強度放電燈可操作在準（quasi)”待機（standby)”中， 此時對使用者而言不會出現可見的限制，此乃因在此時 段中該使用者不需光線。 依據本發明，高強度放電燈中用來補償電極尖端之 逆弧的方法之其它有利的形式和佈置描述在申請專利範 圍各附屬項和以下的說明中。 【實施方式】 本赉明之其匕優點、特徵和細節將依據以下各實施 例的說明以及圖式來描述，其中各圖式和實施例中相同· 或作用相同的各組件分別設有相同的參考符號。 圖1顯示本發明之用於高強度放電燈之電極端逆弧 補償方法之實施方式，其在高強度放電燈的操作期間以 第一實施方式來進行。在本發明所述方法中，高強度放 電燈的功率PL以一預定頻率而在下功率Pu和上功率"Pc 之間調變達一預定時段，其由時間點tl至時間點t2。該 下功率較佳是高強度放電燈的額定功率之大約20%，且 該上功率大約是等於該額定功率。 所謂正規（nominal)功率此處是指··該高強度放電燈 在連續操作時由高強度放電燈製造者所特別設定的額定 功率。 若該高強度放電燈以其正規功率來操作，則燈之熱 預算須被測量出’使電極在固定狀態中操作時鶴在電極 尖端處液化。於是，只有很少量的材料被熔化，以便藉 由表面應力而使尖端達成均勻的圓形化，該尖端上能可 201215240 靠地且整潔地設定-種放電弧。若太多的功率施 中/則更多的材料在電極尖端上液化而造成電極 若太少的功率施加至士 曰，丨疮上 干 主賡中，則電極尖端未液化且 冷，該燈在整流時會有閃爍之傾向。 本發明的方法會造成以下的效果： 、點燃器功率之調變會在整個電極頭上造成週 溫度上升且因此造成一種隨著時間而變化的溫 (gradient)。於是’特別是在固態的鎢和液態的鎢 間的相位邊界附近中會使電極週期性地膨脹和拉 樣會使材料在電極尖端的方向中輸送。如圖7所 種材料的輸送甚至會對電極尖端之—般的逆狐造 的補償且因此會使點燃電壓下降。 使用本發明的方法時另一會發生的效果是由 調變所造成的尖端生長。於此，#使電極尖端週 熔化：冷卻。纟電極尖端冷卻時，氣體放電燈點 以蒸氣相位存在於電極尖端上的鎢發生冷凝，該 極尖端上形成針形的突起 '然而，相對於本文開 之EP 1057376 A1&言，電極尖端生長由於功率 間電極的溫度較低而使效率大大地增加，此乃因 鎢由電極蒸發且該生長克服了該逆弧。 、/本發明的方法可在第一實施方式中在正常操 進行(如圖1所示）、或在第二實施方式中緊接在 放電燈關閉之前進行(如圖2所示）。在視頻投影 j時間點操作一種關閉按鈕時，則本發明的方 高強度放電燈之特定的關閉時點之前進行，且只 加至燈 逆弧。 因此太 期性的 度梯度 材料之 緊，這 示，此 成過大 於電流 期性地 燃器中 鎢在電 頭所述 調變期 报少的 作期間 1¾強度 機中當 法可在 有在預 201215240 疋的時段（由時間點tl至時間點t2)之後該高強度放電燈 實際上才關閉。這樣所具有的優點是：該視頻投影機之 顯示品質在操作期間不會受到影響。此乃因在壓下該關 閉按紐之後影像逐漸消失。 高強度放電燈中所出現的大問題在於：高強度放電 燈起動時的點燃電壓明顯地隨著高強度放電燈之溫度而 提局’使視頻投影機中的高強度放電燈只有在較冷時才 可起動。這樣會使已關閉的視頻投影機通常需要二秒的 時間才可再接通，此乃因高強度放電燈在重新起動之前 須冷卻。為了改良此種不良狀態，由先前技術中已知所 謂瞬間接通（InStant_0n)方法’如圖3所示。若在時間點 t〇壓下視頻投影機之關閉按鈕，則高強度放電燈未立即 關閉而是使施加至該高強度放電燈的功率在該高強度放 電燈有效地關閉之前以多個步驟下降。這樣所顯示：優 點是：高強度放電燈在該關閉按鈕壓下之後仍在 時段：保持著操作狀態’使得在無意間壓下 且隨後試圖使該投影機再操作時，該高強度 處於：定功率中且該投影機實際上可立即再處於：： 中@際上甚至當高強度放電燈關閉之後試圖垃、 時’直至可重新起動時的時間亦可明顯： 藉由功率之逐步下降而使高強度放電燈冷卻，且= 速度上可快很多地又使高強度放電燈點燃 通的較新之視頻投影機中已成：:接 用於向強房於禋^準。 度放電燈之電極端逆弧補償太土 所述方法可有利地與該瞬間接通法,本發明 、，、。合。此方法顯 -7- 201215240 不在圖4中。此處，在麗下該 的方法，且高強度放電燈的功率在下功率後p進丁，發明 下降。高強度放電燈：率度之 =上功”。值逐步地 段，其由時間點t,至時間點广二因此又進行-預定時 全部的調變頻率並非都同樣有2效:’、、而，本發明的方法對 圖5顯示本發明的方法以 時高強度放電燈的電麗u # #的調支頻率來操作 至點燃期間Η0小時為止的關係圖。直 降，然後又上升。二放：強度放電燈的平均電壓下 有超過】。伏(v)之燈的電壓未保持定值且具 變中該高強度放電燈之度。又’在此種緩慢的調 圖6顯示本:之爆裂的危險性將增大。 時高強度放電燈的電壓赫的調變頻率來操作 強度放電燈的電壓之波動寬/广：吻 的波動寬度’〜亦大約有…=:·。4赫時 為12。小時為止，高強度放電燈的電壓下降.、=大約 成相對為定值。 X卜降’然後保持 圖7顯示本發明的方法以 高強度放電燈的電屋Ul相對於點燦期門1頻=來操作時 -個5°小時中，點燃電麼明顯地下降：、圖。在第 料明顯地輸送至電極尖端。然 =;、員示了嫣材 有2至3伏之彼小的波動寬度下，逆1=電壓及只 平衡狀態且該點機電壓保持成报固^。 4輸送處於 圖8顯不本發明的方法以 跡的凋變頻率來操作時 201215240 高強度放電燈的電壓U L相對於點燃期 處，該尚強度放電燈的電壓又容易變成 該尚強度放電燈的電壓uL的波動寬度蠻 伏。高強度放電燈的電壓整體上在點： 降，同時，該電壓在大約5()小時的短暫 次保持穩定。然而，整體上高強度放電 大的波動且不能再稱為穩定。 圖9顯不本發明的方法以25赫的調 尚強度放電燈的電壓Ul相對於點燃期 種調變頻率中，未能再觀看出該高強度 穩定性。高強度放電燈的電壓之波動寬 至7伏。於疋，由此可知：在調變頻率^ 成或只能微不足道地達成穩定效果。 為了使最大量的材料輸送至電極尖 能短的時間中補償電極的逆弧，則點燃 變頻率須直接與電極形式和構造有關。 電容量是與所使用的導線直徑有關、且 中亦與繞組的結構和密度有i。由於高 之結構在壽命期間將大大地發生變化： 生燒結且特定的一些區域將更緊密，其 而變薄。 對不同&電極造型上由☆製程容許 造成的寬頻譜而言，為了確保本發明的 生作用’該調變頻率不是固定地選取， 率值和上頻率值之間變化。此種變化可 間的關係圖。此 不穩定’同時， 小但仍有大約5 然期間輕微地下 的點燃期間中多 燈的電壓承受較 變頻率來操作時 I的關係圖。在此 放電燈的電壓之 度此處大約為6 .25赫時不能達 端且因此在儘可 功率之最佳的調 例如，導熱性和 在捲繞式的電極 的溫度，則電極 例如，繞組將發 它區域由於蒸發 度和動態變化所 方法可最佳地發 而是在一種下頻 週期性地例如以 -9- 三角形 化亦能 望的頻 又 時，則 和冷卻 例如使 p〇和1 圖1至 作週期 之週期 缺 電燈點 著一燈 在 放電燈 致上會 果為： 份的壽 壓直接 有關， 電極距 地獲得 在調變 地提向 201215240 式或錯齒形式的頻率變化來達成。然而，此 以隨機控制來達成，且只設定各調變頰率之 率頻度。 ’當電極上的溫度在一給定的調變頻率中是 本發明的方法可達成最佳的作用。由於加熱 速率可依據點燃器形式而完全不同，則有利 所選取的冷卻相位（phase)短於加熱相位。上 功率Pu之間的工作週期比因此可變化且未 圖4所示位於50%處。上功率和下功率之間 比較佳是在20 : 80和80 : 20之間。因此， 性的膨脹和拉緊之動態情況可適當地受到影 而’上述措施與燈型很有關係且主要與高強 燃器之電極造型很有關係。最佳化的方法因 型至另一燈型而有很大的變化。 "妳的凋變頻率時，於一預定的期間中有 之功率在下功率Pu和上功率p〇之間調镇 在〇·2赫和10赫之間產生令人驚異的效j 邊咼強度放電燈之電壓將在高強度放電转 二期間保持相同大小。*於該高強度放, 與高強度放電燈的氣體放電燈點燃器之零 則在整個高強度放電燈點燃期間之大部私 =須保持相同且使視頻投影系統之光學相 d亥向強度放電燈設置在視頻投影秀 頻率小於0.2赫時，所謂，，燈爆裂”之危授 燈爆裂大部份是由於過載而由氣體放售 種變 所期 最大 速率 的是 功率 必如 的工 電極 響。 度放 此隨 強度 ，大 該效 大部 的電 距離 間該 大大 中 〇 大大 點燃 -10- 201215240 器之爆裂所造成。上述各頻率因此對所期望 適當的。 在調變頻率大於10赫時’不能達到所期 燈電壓不能充份地獲致穩定，因此，相對於 方法而言不能辯認出明顯的優點。 【圖式簡單說明】 圖1顯示用於高強度放電燈之電極端逆 之本發明的實施方式，其在高強度放電燈的 第一實施方式來進行。 圖2顯示用於高強度放電燈之電極端逆 之本發明所述方法之第二實施方式，其在高 關閉時進行。 圖3顯示視頻投影裝置中直至使高強度 通時的時間減少的習知方法。 圖4顯示用於高強度放電燈之電極端逆 之本發明所述方法之第二貫施方式，其在高 關閉時進行，此方法與視頻投影裝置中直至 電燈再導通時的時間減少的方法相組合。 圖5顯示本發明的方法以0. 〇 4赫的調變 時高強度放電燈的電壓Ul相對於點燃期間6 圖6顯示本發明的方法以〇. 2赫的調變 時高強度放電燈的電壓Ul相對於點燃期間白 圖7顯示本發明的方法以1赫的調變頻 高強度放電燈的電壓Ul相對於點燃期間的β 圖8顯示本發明的方法以5赫的調變頻 之效果是不 望的效果， 習知之操作 弧補償方法 操作期間以 弧補償方法 強度放電燈 放電燈再導 弧補償方法 強度放電燈 使高強度放 頻率來操作 b關係圖。 頻率來操作 &關係圖。 率來操作時 哥係圖。 率來操作時 -11 - 201215240 向強度放電燈的電壓U L相 圖9顯示本發明的方法 高強度放電燈的電壓Ul相 【主要元件符號說明】 無0 對於點燃期間的關係圖。 以25赫的調變頻率來操作時 對於點燃期間的關係圖。 -12-201215240 VI. Description of the invention: [Technical field of the invention] This month " and the electrode end inverse (back) compensation method for the intensity discharge lamp. The invention also relates to an electronic operation device for the discharge lamp, The above method can be carried out at a rate of 4 and 5 degrees. [Prior Art] According to the patent application, the independent item $ <cheek type 'The invention is started by the anti-arc compensation method for the electrode end in the ancient discharge lamp. Strong by EP 1057376 Α1 φ p + T know-the electrode tip method, which applies current pulse wave to the moment # μ 4. The operating current of the heart-shaped square-shaped rectangle and the formation of the electrode. ^ & the end of the species, so that due to continuous growth of an arc or even fully compensate for the inverse arc. - The inverse of the electrode [invention] The purpose of the present invention is to improve the - you reverse arc Cme compensation side ; ^ for the electrode of the high-intensity discharge lamp to compensate for the reverse arc. And the finer device, whereby the invention can be preferably supplemented according to the invention, and the above object is achieved by a high-strength, anti-fox compensation method to achieve the function of the heat discharge lamp. Checking the power of the 功率 曰 〆 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 在一 。 。 。 。 。 。 。 。 The effect is achieved, and is transferred to the tip of the electrode and compensated for the predetermined period of time preferably between 30 seconds and 10 minutes. This is the time required to compensate for the reverse arc of the electrode. The optimum time period for the mashing juice. The pre-twisting frequency 201215240 is preferably between 0.2 Hz and the preferred method of the present invention is the maximum power of the method of 赫. 5 Hz. Between 0 Hz. At this modulation frequency, the effect is maximum. The predetermined frequency is between 5 Hz. Therefore, it can be ensured that in another form of continuing development of the invention, the modulation frequency is periodically It varies between the lower frequency and the upper frequency. Therefore, the method is preferred. Adjusted for the dynamic change of the electrode. In addition, the duty cycle ratio - _ 〇 can vary between the upper power and the lower power, especially between 纟 8 〇 2 0. With this measure, the present invention The method can be preferably adjusted for different electrode forms and electrode materials. The lower power is preferably between 额定# 6 〇/〇 of the rated power of the high-intensity discharge lamp, and the upper power is preferably Between 90% and 120% of the rated power of the high-intensity discharge lamp. The method of the invention has the greatest effect at such a modulation depth. In another embodiment, the upper power is 9 额定 of the rated power. % to 2 0 /〇 starts to fall to 2% to 4% of the rated power in a single step. This type of operation is preferably used when the projector is turned off and the high-intensity discharge lamp is extinguished. Fast re-ignition. In the case of an electronic operating device, the object of the invention is achieved by an electronic operating device for operating a high-intensity discharge lamp, wherein the electronic operating device performs the above method. Particularly advantageously, Electronic operating device based on one The high-intensity discharge lamp is operated again for a predetermined period of time. Therefore, in the predetermined period of time, the upper power is reduced from 90% to 12% of the rated power to 25% of the rated power in multiple steps. Up to 4 〇%. The predetermined time period is between 30 seconds and 1 〇 minutes compared to 201215240. By this way, the high intensity discharge lamp can be operated in quasi "standby" At this time, there is no visible restriction to the user, because the user does not need light during this period. According to the present invention, the method for compensating for the reverse arc of the electrode tip in the high intensity discharge lamp Advantageous forms and arrangements are described in the respective dependent claims and in the following description. [Embodiment] The advantages, features, and details of the present invention will be described in accordance with the following description of the embodiments and the drawings, wherein each of the drawings and the same or the same components are provided with the same reference. symbol. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows an embodiment of the electrode end reverse arc compensation method for a high intensity discharge lamp of the present invention which is carried out in the first embodiment during operation of the high intensity discharge lamp. In the method of the present invention, the power PL of the high intensity discharge lamp is modulated at a predetermined frequency between the lower power Pu and the upper power "Pc for a predetermined period of time from time point t1 to time point t2. The lower power is preferably about 20% of the rated power of the high intensity discharge lamp, and the upper power is approximately equal to the rated power. The term "nominal power" as used herein refers to the rated power that is specifically set by the manufacturer of the high-intensity discharge lamp during continuous operation. If the high intensity discharge lamp is operated at its normal power, the heat budget of the lamp must be measured as 'the liquefaction of the crane at the tip of the electrode when the electrode is operated in a fixed state. Thus, only a very small amount of material is melted to achieve a uniform circularization of the tip by surface stress, which can be set on the tip of the ground in 201215240. If too much power is applied / then more material is liquefied on the tip of the electrode causing too little power to be applied to the girdle, and in the main sputum, the tip of the electrode is not liquefied and cold, the lamp is There is a tendency to flicker when rectifying. The method of the present invention produces the following effects: The modulation of the igniter power causes a rise in the temperature of the circumference of the entire electrode tip and thus a gradient that changes over time. Thus, especially in the vicinity of the phase boundary between the solid tungsten and the liquid tungsten, the electrode is periodically expanded and pulled to transport the material in the direction of the electrode tip. The transport of the material of Figure 7 compensates even for the general reverse of the electrode tip and thus causes the ignition voltage to drop. Another effect that can occur when using the method of the present invention is tip growth caused by modulation. Here, # melts the tip of the electrode: cooling. When the tip of the crucible is cooled, the gas discharge lamp spot condenses with tungsten present in the vapor phase at the tip of the electrode, and a needle-shaped projection is formed on the tip end. However, the electrode tip growth is due to the EP 1057376 A1 & The temperature of the interelectrode electrode is lower and the efficiency is greatly increased because tungsten is evaporated by the electrode and the growth overcomes the reverse arc. The method of the present invention may be performed in a normal operation in the first embodiment (as shown in Fig. 1) or in the second embodiment immediately before the discharge lamp is turned off (as shown in Fig. 2). When a close button is operated at the time point of the video projection j, the specific closing time of the high intensity discharge lamp of the present invention is performed before and only to the reverse arc of the lamp. Therefore, the degree of the gradient of the material is too tight, which means that the tungsten in the burner is more than the current period, and the tungsten is in the intensity of the period of the modulation period. The high intensity discharge lamp is actually turned off after the period of 201215240 (from time t1 to time t2). This has the advantage that the display quality of the video projector is not affected during operation. This is because the image gradually disappears after the button is pressed. The big problem in high-intensity discharge lamps is that the ignition voltage at the start of the high-intensity discharge lamp is obviously picked up with the temperature of the high-intensity discharge lamp, so that the high-intensity discharge lamp in the video projector is only colder. Only can be started. This will cause the closed video projector to typically take up to two seconds to turn back on because the high intensity discharge lamp must be cooled before restarting. In order to improve such a bad state, the so-called instant turn-on (InStant_0n) method is known from the prior art as shown in FIG. If the close button of the video projector is pressed at time t, the high intensity discharge lamp is not immediately turned off but the power applied to the high intensity discharge lamp is lowered in multiple steps before the high intensity discharge lamp is effectively turned off. . This is shown by the advantage that the high-intensity discharge lamp remains in the operating period after the closing button is depressed: the operating state is maintained such that when inadvertently depressed and subsequently attempted to re-operate the projector, the high intensity is attained: In the power, and the projector can actually be immediately in:: in the middle of the hour, even when the high-intensity discharge lamp is turned off, the time to try to be able to restart can be obvious: by the gradual decline of power The high-intensity discharge lamp is cooled, and the newer video projector that can ignite the high-intensity discharge lamp much faster can be used in the new video projector: The electrode end of the discharge lamp reverses the arc to compensate for the soil. The method can be advantageously combined with the instant turn-on method, the present invention, and the present invention. Hehe. This method shows that -7- 201215240 is not in Figure 4. Here, in the method of the Li, and the power of the high-intensity discharge lamp is pushed down after the lower power, the invention is lowered. High-intensity discharge lamp: the rate = the upper power". The value is gradually stepped, from the time point t to the time point, so it is carried out again - all the modulation frequencies are not all equally effective when they are scheduled: ', The method of the present invention shows a relationship diagram of the method of the present invention with the frequency of the regulation of the high-intensity discharge lamp to Η0 hours during the ignition period, which is straight down, and then rises again. : The average voltage of the intensity discharge lamp exceeds the voltage of the lamp of the volt (v). The voltage of the lamp of the volt (v) is not maintained and the degree of the high-intensity discharge lamp is changed. In addition, the display of this slow pattern 6 shows: The risk of bursting will increase. When the voltage of the high-intensity discharge lamp is modulated, the frequency of the voltage of the discharge lamp is wide/wide: the fluctuation width of the kiss '~ also has about...=:·. 4 Hz The voltage of the high-intensity discharge lamp drops by 12. hours, and the value of the high-intensity discharge lamp is approximately constant. Then, the figure 7 shows that the method of the present invention uses a high-intensity discharge lamp for the electric house Ul relative to the point-and-light period. Door 1 frequency = when operating - 5 ° hours, the ignition power drops significantly Figure: The material is obviously delivered to the tip of the electrode. However, the member shows that the coffin has a small fluctuation width of 2 to 3 volts, the inverse 1 = voltage and only the equilibrium state and the voltage of the machine is maintained. Reporting ^ 4 delivery in Figure 8 shows the method of the invention when operating at the frequency of the trace of the 201215240 high-intensity discharge lamp voltage UL relative to the ignition period, the voltage of the intensity discharge lamp is easy to become The fluctuation width of the voltage uL of the intensity discharge lamp is quite volatility. The voltage of the high-intensity discharge lamp is generally at the point: drop, and at the same time, the voltage remains stable for a short time of about 5 () hours. However, the overall high-intensity discharge is large. Fluctuating and can no longer be referred to as stabilization. Figure 9 shows that the method of the present invention fails to observe the high-intensity stability in the frequency U1 of the discharge lamp of 25 Hz with respect to the ignition period. The voltage fluctuation of the intensity discharge lamp is as wide as 7 volts. In 疋, it can be seen that the stabilization effect can be achieved neatly at the modulation frequency. In order to make the maximum amount of material to be delivered to the tip of the electrode, the compensation can be short. Electrode inverse The ignition frequency must be directly related to the electrode form and construction. The capacitance is related to the diameter of the wire used, and the structure and density of the winding are also i. Since the high structure will greatly change during the lifetime: Sintered and some of the specific areas will be tighter and thinner. For different & electrode shapes on the wide spectrum allowed by the ☆ process, in order to ensure the biological effect of the present invention, the modulation frequency is not fixedly selected. , the change between the rate value and the upper frequency value. This change can be a relationship diagram. This instability 'at the same time, small but still about 5 during the slight underground ignition period, the voltage of multiple lamps is subjected to a variable frequency to operate The relationship diagram of the time I. The voltage of the discharge lamp here is about 6.5 Hz and can not reach the end and therefore the best adjustment of the power, for example, the thermal conductivity and the temperature of the wound electrode , for example, the electrode, for example, the windings will be optimally developed due to the degree of evaporation and dynamic changes, but may be expected in a lower frequency periodically, for example, by -9-triangulation. At the same time, and cooling, for example, p〇 and 1 to cycle the cycle of the lack of lights, a lamp on the discharge lamp will be the result: the life pressure of the part is directly related, the electrode is obtained from the ground in the modulation This is achieved by a frequency change in the form of 201215240 or wrong tooth. However, this is achieved by random control, and only the frequency of each modulation buzz rate is set. The optimum effect is achieved by the method of the present invention when the temperature on the electrode is at a given modulation frequency. Since the heating rate can be completely different depending on the form of the igniter, it is advantageous that the selected cooling phase is shorter than the heating phase. The duty cycle ratio between the upper powers Pu can therefore vary and is not at 50% as shown in Figure 4. The better between upper power and lower power is between 20:80 and 80:20. Therefore, the dynamics of sexual expansion and tension can be appropriately affected. The above measures are closely related to the lamp type and are mainly related to the electrode shape of the high-burner. The method of optimization varies greatly depending on the type of lamp. "妳's decay frequency, the power between a lower power Pu and the upper power p〇 during a predetermined period produces an amazing effect between the 赫·2 Hz and 10 Hz. The voltage of the discharge lamp will remain the same size during the high intensity discharge. * In this high-intensity discharge, the zero of the gas discharge lamp igniter with the high-intensity discharge lamp is mostly the same during the ignition of the entire high-intensity discharge lamp and must be kept the same and the optical phase of the video projection system is discharged. When the frequency of the video projection show is less than 0.2 Hz, the so-called "light burst" dangerous lamp burst is mostly caused by the overload of the gas, and the maximum rate of the gas is the power of the working electrode. This is caused by the intensity of the large-scale electrical distance between the large-scale and the large-scale ignited -10-201215240. The above frequencies are therefore expected to be appropriate. When the modulation frequency is greater than 10 Hz' Failure to achieve the desired lamp voltage is not sufficiently stable, and therefore, significant advantages cannot be recognized with respect to the method. [Schematic Description] FIG. 1 shows the present invention for the electrode end of a high-intensity discharge lamp. The embodiment is carried out in a first embodiment of a high intensity discharge lamp. Fig. 2 shows a second embodiment of the method according to the invention for the electrode end of a high intensity discharge lamp Figure 3 shows a conventional method for reducing the time until high intensity is passed in a video projection device. Figure 4 shows the method of the present invention for the electrode end of a high intensity discharge lamp. a second embodiment, which is performed at a high turn-off, in combination with a method of reducing the time in the video projection device until the lamp is re-conducted. Figure 5 shows the method of the present invention with a modulation of 0. 〇 4 Hz The voltage U1 of the high-intensity discharge lamp relative to the ignition period 6 is shown in Fig. 6. The method of the invention shows a voltage U1 of the high-intensity discharge lamp at a modulation of 赫. 2 Hz with respect to the ignition period. Figure 7 shows the method of the invention at 1 Hz. The voltage U1 of the variable-frequency high-intensity discharge lamp is relative to the β during ignition. FIG. 8 shows that the effect of the method of the present invention with a frequency modulation of 5 Hz is an undesired effect, and the intensity of the arc compensation method during the operation of the conventional operational arc compensation method. Discharge lamp discharge lamp re-arcing compensation method Intensity discharge lamp enables high-intensity frequency to operate b diagram. Frequency to operate & diagram. Rate to operate when the brother map. Rate to operate -11 - 201215240 Voltage UL phase diagram of intensity discharge lamp Figure 9 shows the voltage U1 phase of the high intensity discharge lamp of the method of the invention [Description of main component symbols] No. 0 Diagram of ignition period. When operating at a modulation frequency of 25 Hz For the relationship diagram during ignition. -12-