200816257 九、發明說明：200816257 IX. Description of invention:
發明領域 本發明係有關於一種光源裝置，特別是有關一種可容 5易安裝產生紫外線之適當的放電燈之光源裝置。 發明背景FIELD OF THE INVENTION The present invention relates to a light source device, and more particularly to a light source device that can accommodate a suitable discharge lamp that produces ultraviolet light. Background of the invention
以往，在半導體裝置(1C)或液晶面板(LCD)或印刷配線 板(PCB)等之製程中，具有產生紫外線之放電燈之光源裝置 1〇係使用於曝光。此種放電燈係如第8圖所示，由石英燈泡5、 陽極53、陰極54、内部引線棒55、外部引線棒％、填封管 15Conventionally, in a semiconductor device (1C), a liquid crystal panel (LCD), or a printed wiring board (PCB), a light source device having a discharge lamp that emits ultraviolet light is used for exposure. Such a discharge lamp is as shown in Fig. 8, and is composed of a quartz bulb 5, an anode 53, a cathode 54, an inner lead rod 55, an outer lead rod %, and a sealing tube 15
…金屬基部構造體丨所構成。石英燈泡5係由球狀之發光 管與2個填封管52構成。陽極53與陰極⑽對向配置於發 光管51中。利用内部引線棒55支持陽極„與陰極％並且進 ^電。填物2中，内利線棒55與外柯線棒％係由 金屬扣連接謂封絲錄[金屬基部 構k體1係固定於填封管52。 20 出装立 ，丨母疋^^^^^'圖之縱截面圖所示， 基。m與金屬σ部突出部13構成。基部 ::r:r抵接面12封住之大徑的圓筒狀的部二： 大出部13係貫通圓板狀之抵接面I2之中央三土 同軸狀之小徑的部分。大徑 、iiL設置成 填封管52。卜- 基仙係叫著_接著於 d，!、狀金屬基較出部13插通 56，且以銀壤59黏接。 卜4引線棒 5 200816257 當點光源燈之亮點與凹面鏡(物鏡)之焦點對焦時，光可 成平行。當改變放電燈之亮點位置時，由於無法得到規定 之光學性能，因此亮點必須設在凹面鏡的前面且經常於一 定之位置。於光源裝置安裝放電燈時，於具有光源裝置之 5平坦抵接面33之金屬製金屬基部支持座3之孔32，插入金屬 基部構造體1之金屬基部突出部13且保持放電燈，並經由金 屬基部支持座3通電。當每一放電燈之亮點位置不同時，必 須在母-人父換放電燈時調整凹面鏡之亮點位置。此為需 要熟練度且麻煩的作業。習知之光源裝置係如下所述，即 10使父換放電燈’党點之位置也不會變化。並且於金屬基部 支持座3之孔32插入放電燈之金屬基部構造體1之金屬基部 突出部13而使金屬基部構造體j之圓板狀之抵接面12與金 屬基部支持座3抵接。 使用放電燈時，必須判斷是否為適當之燈，且也需要 15確認往光源裝置之安裝是否適當地進行。當誤裝不適於光 源裝置之放電燈且使之亮燈時，會成為光源襄置故障的原 因且縮短壽命，並且放電燈也會破裂。直流亮燈之短弧型 放電燈規定了連接於光源裝置之極性（陰極與陽極），因此 當誤接極性時，陰極會顯著雜，壽命會顯著變短。因此， 20概電燈之金屬基部等明破表示極性，促使注意放電燈之 女裝方向。且在陰極與陽極改變端子的形狀，而無法連接 於相反之極性。 如專利文獻1所揭示者，已知有於金屬基部與光源裝置 之金屬基部支持座相對之位置設置凹凸，防止不適合之燈 200816257 基部形成顯示壤 在光源裝置亮燈。又，也想到於燈之金屬 之製造者名之凹或凸狀記號，並嵌入於形成有凸或四支壯 置側之金屬基部支持座。藉由該等方法，於光源裝置安^ 燈之作業者可藉由金屬基部與金屬基部支持座之間的四凸 5 無法嵌合而注意到其為不適合之燈。...the metal base structure is composed of 丨. The quartz bulb 5 is composed of a spherical luminous tube and two sealing tubes 52. The anode 53 is disposed opposite to the cathode (10) in the light-emitting tube 51. The inner lead rod 55 is used to support the anode „and the cathode % and the electric power is charged. In the filling 2, the inner inner rod 55 and the outer corrugated rod are connected by a metal buckle, and the metal base is fixed. The sealing tube 52. 20 is shown in the longitudinal section of the figure, and the base m is formed with the metal σ portion protruding portion 13. The base portion: r:r abutting surface 12 Cylindrical portion 2 having a large diameter that is sealed: The large portion 13 is a portion having a small diameter that is coaxial with the center of the disk-shaped abutting surface I2. The large diameter and iiL are provided as a sealing tube 52.卜 - 基仙 is called _ followed by d,!, the metal base is inserted 56 through the outlet 13 and is bonded with silver soil 59. Bu 4 lead rod 5 200816257 When the point light source is bright and the concave mirror (objective lens) When the focus is in focus, the light can be parallel. When the position of the bright spot of the discharge lamp is changed, since the specified optical performance cannot be obtained, the bright spot must be set in front of the concave mirror and often at a certain position. When the discharge lamp is mounted on the light source device, Inserting the metal base structure 1 into the hole 32 of the metal base support 3 having the flat abutting surface 33 of the light source device The metal base protrusion 13 maintains the discharge lamp and is energized via the metal base support 3. When the position of the bright spot of each discharge lamp is different, the position of the bright spot of the concave mirror must be adjusted when the mother-person replaces the discharge lamp. Proficient and troublesome operation. The conventional light source device is as follows, that is, 10 does not change the position of the parent discharge lamp 'party point. And the metal base structure of the discharge lamp is inserted into the hole 32 of the metal base support seat 3. The metal base protruding portion 13 of the body 1 causes the disk-shaped abutting surface 12 of the metal base structure j to abut against the metal base support 3. When using the discharge lamp, it is necessary to judge whether it is an appropriate lamp or not. It is confirmed whether the installation to the light source device is properly performed. When the discharge lamp that is not suitable for the light source device is mistakenly installed and turned on, it may cause the malfunction of the light source device and shorten the life, and the discharge lamp may also be broken. The short arc type discharge lamp defines the polarity (cathode and anode) connected to the light source device, so when the polarity is misconnected, the cathode will be significantly mixed and the life will be significantly shortened. The metal base of the electric lamp, etc., indicates the polarity, prompting attention to the direction of the discharge lamp, and changing the shape of the terminal at the cathode and the anode, and cannot be connected to the opposite polarity. As disclosed in Patent Document 1, it is known that the metal is known. The base is disposed at a position opposite to the metal base support of the light source device to prevent the unsuitable lamp 200816257 from forming a base to light the light source device. Also, the concave or convex mark of the manufacturer of the metal of the lamp is also considered, and Embedded in a metal base support seat formed with a convex or four strong side. By these methods, the operator of the light source device can be embedded by the four convex 5 between the metal base and the metal base support. It is noted that it is an unsuitable lamp.
在光源裝置以外也有用以使用適當之消耗品之機構。 例如，列印機之墨水用完時，必須補充墨水。雖然消費者 宜使用純正品之墨水，但往往係使用非純正品之墨水。於 疋，包括無法正確印刷之情況等，有對列印機本體造成不 10良影響之虞。因此，為了顯示純正品之墨水已填充，如專 利文獻2所揭示者，已知有預先於墨水匣中設置可特定製造 者之凹凸狀記號。由於前述之墨水匣一般係由塑膠成形， 因此容易形成凹凸狀之記號。 【專利文獻1】曰本實用新型公報實開昭59_181576 15 【專利文獻日本專利公開公報特開平04-042260 【發^明内容】 發明概要 本^月之目的在於解決上記習知之問題，且為可容易 衣泣使用者可各易確認光源裝置與放電燈適合且可適當 20地安裝放電燈之光源裝置之構造。 為解決上述之課題，本發明光源裝置，包含有··具有 金屬製之金屬基部構造體之燈；用以保持前述金屬基部構 &體之金屬基。卩支持座；及用以決定前述金屬基部構造體 與前述金屬基部支持座之相對位置之定位構件者，前述金 200816257 屬基部構造體具有：大徑之圓筒狀基部；小徑之金屬基部 犬出部，及為連接前述基部與前述金屬基部突出部之面且 具有刻印有表記號之第一凹狀部之第一抵接面，前述金屬 基部支持座具有：供前述金屬基部突出部插入之孔；為前 5述金屬基部構造體插入前述金屬基部支持座時與前述第一 抵接面抵接之面，且具有刻印有與前述表記號呈鏡面對稱 之裏記號之第二凹狀部之第二抵接面，前述定位構件係用 以嵌合於前述第一凹狀部與前述第二凹狀部之塊件。金屬 基部金屬基部金屬基部支持座金屬基部支持座金屬基部金 1〇屬基部金屬基部支持座金屬基部金屬基部支持座金屬基部 藉由上述構成，可以便宜價錢且容易製造具有用以定 位燈之刻印之金屬基部構造體與金屬口部支持座。 t實施方式】 較佳實施例之詳細說明 15 以下參照第1圖〜第7圖詳細說明實施本發明之最佳形 態。 本發明之實施例係一種於放電燈之金屬基部端面形成 d P有表心虎之凹狀部，且於用以保持金屬基部之金屬基 社持座之端㈣朗印有與表記號錢®對稱之裏記號 20之凹狀部，並於兩凹狀部之間喪入仿照有表記號之塊件之 光源裝置。 立第1圖係顯示於本發明之實施例中之光源裝置之金屬 基較持座安展有放電燈之金屬基部構造體之狀態之外觀 圖第1圖中，金屬基部構造體1係具有··大徑之圓筒狀基 8 200816257 β 、小從之金屬基部突出部、基部與金屬基部突出部連接 之面之金屬製金屬基部。金屬基部支持座3係經由金屬基部 構造體而保持燈之構件。放電燈_具有放電電極、石英 燈泡、填封管與金屬基部構造體之燈。 5 #2_、顯*金屬基㈣造體安裝於金屬基部支持座 之狀態之_面圖圖中，塊件2係用以決定與金屬基 部構造體與金屬基部支持座抵接之面嵌合之位置之定位構 件。基部11係金屬基部之大徑圓筒狀部分。抵接㈣係金 屬基部之圓板狀之面，且係抵接於金屬基部支持座之面。 土屬基大出部13係金屬基部之小徑部分。孔32係金屬基 部支持座之孔，且為金屬基部突出部插入之部分。抵接面 33為孟屬基。ρ支持座之端面，且為與金屬基部抵接之部 分。填封管52係用以將燈填封成氣密狀態之部分。外部引 線棒56係用以電性連接金屬基部與導電性金屬猪之構件。 Μ導電性金屬簿57係用以電性連接外部引線棒與内部引線棒 之構件。接著劑58係用以於填封fg)定金屬基部之接著 劑。銀蟻59制以電性連接外部引線棒與金屬基部之構件。 第3圖係顯示形成於光源裝置之金屬基部構造體與金 屬基部支持座之抵接面之凹狀部者。第3圖中，第丨凹狀部 20 14係於金屬基部刻印有表記號之凹狀部。令鏡面文字之記 號為裏記號，且為了與此區別，令一般讀取文字之記號為 表記號。第2凹狀部34係於金屬基部支持座刻印有裏記號之 凹狀部。第4圖係顯示光源裝置之凹狀部之部分縱截面圖。 第5圖係用以顯示光源裝置之凹狀部與塊件之形狀者。第6 9 200816257 圖係用以顯示光源裝置之塊件的加工方法者。第7圖係顯示 沒有凹狀部之燈安裝於金屬基部支持座之狀態之縱截面 圖二又，各圖中，對應於第8圖與第9圖之構成要素則賦與 在第8圖與第9圖使用之符號。 、 5 °兒明如上所構成之本發明之實施例中光源裝置之機能 與動作。首先，參照第1〜3圖，說明光源裝置之機能的概 要。於放電燈之金屬基部與金屬基部支持座設置刻印有記 號之凹部，於凹部嵌入塊件，並將放電燈之金屬基部固定 於金屬基部支持座。由於不需要設置凸部，因此可容易製 1〇造可確認放電燈之適合性且可正確地安裝於光源裝置之金 屬基部與金屬基部支持座。 即，於金屬基部構造體丨與金屬基部支持座3形成鏡面 對稱之第一凹狀部14與第二凹狀部34。第一凹狀部14與第 二凹狀部34使用雷射而可正確地形成。以壓製方式將具有 15與凹狀部14,34之深度之和對應之厚度之導電板鑿通作成 與第一凹狀部14及第二凹狀部34相合之塊件2，並嵌入第二 凹狀部34。當將金屬基部構造體丨插入金屬基部支持座3 時，嵌入於金屬基部支持座3之第二凹狀部34之塊件2會與 金屬基部構造體之第一凹狀部14嵌合。藉由塊件2，可決定 2〇金屬基部構造體1與金屬基部支持座3之位置，並可正確地 進行兩者的安裝。 其次，參照第3圖與第4圖說明記號之刻印方法。金屬 基部構造體1由·一端面被圓板狀之抵接面12封住之大徑圓 筒狀之基部11、及貫通平面狀之抵接面12之中央而直立設 200816257 置成同軸狀之小徑金屬基部突出部13所構成。如第3圖所 示’於抵接面12形成有以可讀取之大小刻印有製造者之商 標記號等之表記號之第一凹狀部14。如第3圖與第4圖所 不，在與其對應之金屬基部支持座3之平面狀之抵接面33， 5形成有刻印有與表記號14呈鏡面對稱之裏記號之第二凹狀 部34。第一凹狀部14與第二凹狀部34可藉由雷射加工、切 削加工、研削加工、放電加工、曝光•蝕刻等方法形成。 其次，參照第5圖說明記號。形成於第一凹狀部14與第 一凹狀部34之記號作為如第5圖所示之文字或圖形。使用顯 1〇不製造者之公司名或放電燈之型式或光源裝置型式之文 子。或者使用該等之商標記號。藉刻印該等文字或圖形， 使用者可容易識別該放電燈為製造者推薦之燈。亦可因應 於燈的規格而稍微改變記號之形狀，以使僅在燈適合於光 源裝置時，塊件可剛好嵌入。 15 其次，參照第6圖說明塊件之作成方法。如第6圖所示， 塊件2係以壓製方式將考慮了金屬基部構造體丨及金屬基部 支持座3兩方之凹部深度之厚度之導電板4鑿通而製作出。 或者也可藉由雷射進行之燒切加Μ軸。亦可使塊似不 分離成複數㈣當連結成—體化。藉由令塊件2之厚度與兩 2〇方之凹部深度之合計為實質相同之數值，金屬基部構造體^ 及至屬基部支持座3之抵接面會沒有間隙而可均—地連接。 將金屬基部構造體1插入金屬基部支持座3時，首先， 將與凹狀記號相合之尺寸形狀之塊件城人於金屬基部支 持座3之第二凹狀部34。塊件2係具有在已喪入金屬^支 200816257 持座3之第二凹狀部34之狀態下，較金屬基部支持座3之上 端抵接面33突出於上部之厚度。其次，將金屬基部構造體 10之金屬基部突出部13插入於金屬基部支持座3之孔32。此 時，若為適合之燈，則會如第2圖所示，形成於金屬基部構 5造體1之抵接面12之凹部與嵌入於金屬基部支持座3之第二 凹狀部34之塊件2之自金屬基部支持座3上端面突出之面狀 部分嵌合。 其次’茶照第7圖說明安裝了不適合之燈的情況 。當燈 不適合時，由於未形成適合金屬基部構造體〗之抵接面12之 *1°凹狀圮號14，因此如第7圖所示，不會與嵌入於金屬基部支 持座3之塊件2的凸部嵌合，無法將燈安裝於預定之位置。 因此，不會通過金屬基部支持座3而適當地供電於燈，燈不 會正常亮燈。即使係正確之燈，將燈之極性安裝成相反時 也會有同樣情況。如此’將放電燈安裝於裝置時，使用者 l5可確说燈為適合之燈，並可正確地定位，因此亮點的位置 也會定於預定之位置，可發揮所期待之光學性能。 如上所述，本發明之實施例中，係將光源裝置構成為 於放電燈之金屬基部端面形成刻印有表記號之凹狀部，於 用以保持金屬基部之金屬基部支持座之端面形成刻印有與 2〇表記號呈鏡面對稱之裏記號凹狀部，並於兩凹狀部之間嵌 入印有表記號之塊件，因此可僅安裝適合之放電燈。 產業上之可利用性 本發明之光源裝置係適合在半導體裝置(Ic)或液晶面 板(LCD)或印刷配線板(PCB)等之製程中使用於曝光之光源 12 200816257 裝置。 【圖式簡單說明】 * 第1圖係顯示本發明之實施例之光源裝置中，放電燈保 持於金屬基部支持座之狀態之外觀圖。 5 第2圖係顯示本發明之實施例之光源裝置中，金屬基部 構造體保持於金屬基部支持座之狀態之縱截面圖。 第3(a)、（b)圖係顯示本發明之實施例之光源裝置之形 成於金屬基部構造體與金屬基部支持座之抵接面之凹狀 ⑩ 部。 10 第4(a)、（b)圖係顯示本發明之實施例之光源裝置之凹 狀部之部分縱截面圖。 第5圖係顯示本發明之實施例之光源裝置之凹狀部與 塊件之形狀者。 第6(a)、（b)圖係顯示本發明之實施例光源裝置之塊 15 件的加工方法者。 第7圖係顯示本發明之實施例之光源裝置中，無凹狀部 ® 之燈安裝於金屬基部支持座之狀態之部分縱截面圖。 第8圖係習知之具有金屬基部之放電燈者。 第9圖係顯示習知之放電燈之金屬基部保持於光源裝 20 置之金屬基部支持座之狀態之縱截面圖。 【主要元件符號說明】 ~ 1…金屬基部構造體 13…金屬基部突出部 11···基部 14…第一凹狀部 12···抵接面 2···塊件 13 200816257 3…金屬基部支持座 53···陽極 32…孔 54…陰極 33· _·金屬基部支持座之抵接面 55…内部引線棒 34··.第二凹狀部 56...外部引線棒 4...導電板 57…導電性金屬箔 5...石英燈泡 58...接著劑 50…放電燈本體 59…銀堪 51...發光管 52...填封管 14It is also useful in addition to the light source device to use a suitable consumable. For example, when the printer's ink runs out, it must be replenished with ink. Although consumers should use pure ink, they often use non-pure ink. Yu Yu, including the situation that it is not possible to print correctly, has a flaw in the printer body. Therefore, in order to show that the pure ink has been filled, as disclosed in Patent Document 2, it is known to provide a concave-like mark of a specific manufacturer in advance in the ink cartridge. Since the ink cartridge described above is generally formed of a plastic, it is easy to form an uneven shape. [Patent Document 1] Japanese Laid-Open Patent Publication No. 59-181576 [Patent Document Japanese Patent Laid-Open Publication No. Hei 04-042260] Summary of the Invention The purpose of the present invention is to solve the above-mentioned problems and to It is easy for the user to easily confirm the configuration of the light source device in which the light source device and the discharge lamp are suitable and the discharge lamp can be appropriately installed. In order to solve the above problems, the light source device of the present invention comprises a lamp having a metal base structure made of metal and a metal base for holding the metal base structure. a support holder; and a positioning member for determining a relative position of the metal base structure and the metal base support, the gold 200816257 is a base structure having a large-diameter cylindrical base; a small-diameter metal base dog And a first abutting surface connecting the base and the surface of the metal base protrusion and having a first concave portion marked with a mark, the metal base support having: the metal base protrusion inserted a hole that is in contact with the first abutting surface when the metal base structure is inserted into the metal base support, and has a second concave portion engraved with a mark that is mirror-symmetric with the reference mark The second abutting surface is configured to be fitted to the block member of the first concave portion and the second concave portion. Metal base metal base metal base support base metal base support base metal base gold 1 base base metal base support base metal base metal base support base metal base by the above configuration, it is possible to manufacture the mark for positioning the lamp at a low price and easily A metal base structure and a metal mouth support. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the best mode for carrying out the invention will be described in detail with reference to Figs. 1 to 7 . An embodiment of the present invention is a recessed portion of a metal base end face of a discharge lamp having a dip center, and a metal base member for holding the metal base (4) is printed with a mark mark® The concave portion of the symbol 20 is symmetrical, and a light source device that imitates the block with the symbol is lost between the two concave portions. Fig. 1 is an external view showing a state in which a metal base of a light source device according to an embodiment of the present invention is in a state in which a metal base structure of a discharge lamp is mounted, and a metal base structure 1 has Large-diameter cylindrical base 8 200816257 β, a metal base portion that is small from the metal base projection, and the base and the metal base projection are connected to each other. The metal base support 3 holds the members of the lamp via the metal base structure. Discharge lamp _ a lamp having a discharge electrode, a quartz bulb, a packing tube and a metal base structure. 5 #2_, display * metal base (four) body mounted on the metal base support seat in the state of the map, the block 2 is used to determine the surface of the metal base structure and the metal base support abuts Positioning member for position. The base portion 11 is a large-diameter cylindrical portion of the metal base portion. The abutting (4) is a disc-shaped surface of the base of the metal and abuts against the surface of the metal base support. The soil-based large portion 13 is a small-diameter portion of the metal base. The hole 32 is a hole of the metal base support seat and is a portion into which the metal base projection is inserted. The abutment surface 33 is a Mengji. The end face of the ρ support seat is a part that abuts against the base of the metal. The sealing tube 52 is used to seal the lamp into a portion of the airtight state. The external lead bar 56 is used to electrically connect the metal base to the conductive metal pig. The conductive conductive metal book 57 is a member for electrically connecting the outer lead bar and the inner lead bar. The adhesive agent 58 is used to seal the adhesive of the metal base. The silver ant 59 is made of a member that electrically connects the outer lead bar and the metal base. Fig. 3 is a view showing a concave portion formed on the abutting surface of the metal base structure of the light source device and the metal base support. In Fig. 3, the second concave portion 20 14 is a concave portion in which the metal base is imprinted with a symbol. Let the symbol of the mirror text be the mark, and in order to distinguish it from this, the mark of the general read character is a table mark. The second concave portion 34 is a concave portion in which the metal base portion is engraved with a mark. Fig. 4 is a partial longitudinal sectional view showing a concave portion of the light source device. Fig. 5 is a view for showing the shape of the concave portion and the block member of the light source device. No. 6 9 200816257 The figure is used to display the processing method of the block of the light source device. Fig. 7 is a longitudinal sectional view showing the state in which the lamp having no concave portion is attached to the metal base support. In each figure, the components corresponding to Figs. 8 and 9 are assigned to Fig. 8 and The symbol used in Figure 9 is used. The function and action of the light source device in the embodiment of the present invention constituted as above are as follows. First, the outline of the function of the light source device will be described with reference to Figs. A recessed portion is engraved with a mark on the metal base of the discharge lamp and the metal base support, a block is embedded in the recess, and the metal base of the discharge lamp is fixed to the metal base support. Since it is not necessary to provide the convex portion, it is possible to easily manufacture the metal base portion and the metal base support which can confirm the suitability of the discharge lamp and can be accurately mounted on the light source device. That is, the first base portion 14 and the second concave portion 34 which are mirror-symmetric are formed in the metal base structure 丨 and the metal base support 3. The first concave portion 14 and the second concave portion 34 can be accurately formed using a laser. The conductive plate having a thickness corresponding to the sum of the depths of the concave portions 14, 34 is cut into a block 2 that is engaged with the first concave portion 14 and the second concave portion 34, and is embedded in the second Concave portion 34. When the metal base structure body is inserted into the metal base support 3, the block 2 embedded in the second concave portion 34 of the metal base support 3 is fitted into the first concave portion 14 of the metal base structure. By the block member 2, the position of the metal base structure 1 and the metal base support 3 can be determined, and the mounting of both can be performed correctly. Next, the marking method of the mark will be described with reference to Figs. 3 and 4. The metal base structure 1 is formed by a large-diameter cylindrical base portion 11 whose one end surface is closed by a disc-shaped abutting surface 12, and a center portion of the planar abutting surface 12, and is erected in a coaxial manner. The small-diameter metal base protrusion 13 is formed. As shown in Fig. 3, a first concave portion 14 having a symbol such as a manufacturer's mark number printed on the readable surface is formed on the abutting surface 12. As shown in Figs. 3 and 4, the planar abutting faces 33, 5 of the metal base support 3 corresponding thereto are formed with a second concave portion engraved with a symbol symmetry with respect to the reference numeral 14. 34. The first concave portion 14 and the second concave portion 34 can be formed by laser processing, cutting processing, grinding processing, electric discharge machining, exposure/etching, and the like. Next, the symbol will be described with reference to Fig. 5. The marks formed in the first concave portion 14 and the first concave portion 34 are characters or figures as shown in Fig. 5. Use the name of the company name of the manufacturer or the type of the discharge lamp or the type of the light source device. Or use these trade mark numbers. By printing such words or graphics, the user can easily identify the discharge lamp as a lamp recommended by the manufacturer. The shape of the mark can also be slightly changed depending on the size of the lamp so that the block can be just embedded only when the lamp is suitable for the light source device. 15 Next, a method of creating a block will be described with reference to FIG. As shown in Fig. 6, the block member 2 is produced by punching a conductive plate 4 having a thickness of a recess portion in consideration of both the metal base structure 丨 and the metal base support base 3 by pressing. Alternatively, the shaft can be burned and cut by a laser. It is also possible to make the blocks not separate into complex numbers (4) when they are connected to form a body. By making the total thickness of the block 2 and the depth of the recesses of the two sides substantially the same, the abutment faces of the metal base structure and the base support 3 can be connected uniformly without a gap. When the metal base structure 1 is inserted into the metal base support 3, first, a block member having a size and shape matching the concave mark is supported by the second concave portion 34 of the metal base portion. The block member 2 has a thickness which protrudes from the upper end portion of the upper end surface 33 of the metal base support base 3 in a state where the second concave portion 34 of the holder 3 of the metal holder 200816257 has been lost. Next, the metal base projection 13 of the metal base structure 10 is inserted into the hole 32 of the metal base support 3. At this time, as a suitable lamp, as shown in FIG. 2, the concave portion formed on the abutting surface 12 of the metal base 5 body 1 and the second concave portion 34 embedded in the metal base support 3 are formed. The planar portion of the block member 2 projecting from the upper end surface of the metal base support base 3 is fitted. Secondly, the 7th picture of the tea photo shows the case where an unsuitable lamp is installed. When the lamp is not suitable, since the *1° concave nick 14 suitable for the abutting surface 12 of the metal base structure is not formed, as shown in FIG. 7, it does not overlap with the block embedded in the metal base support 3. The convex portion of 2 is fitted, and the lamp cannot be attached to a predetermined position. Therefore, the lamp is not properly supplied to the lamp through the metal base support 3, and the lamp does not light normally. Even if the correct lamp is installed, the same is true when the polarity of the lamp is installed in the opposite direction. Thus, when the discharge lamp is mounted on the device, the user l5 can confirm that the lamp is a suitable lamp and can be correctly positioned, so that the position of the bright spot is also set at a predetermined position, and the desired optical performance can be exerted. As described above, in the embodiment of the present invention, the light source device is configured such that a concave portion engraved with a mark is formed on an end surface of the metal base of the discharge lamp, and an end surface of the metal base support for holding the metal base is formed with an imprinted surface. The concave portion is mirror-symmetric with the 2 〇 mark, and the block with the symbol is embedded between the two concave portions, so that only a suitable discharge lamp can be mounted. Industrial Applicability The light source device of the present invention is suitable for use in a light source 12 200816257 device for use in a semiconductor device (Ic), a liquid crystal panel (LCD), or a printed wiring board (PCB). BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an external view showing a state in which a discharge lamp is held by a metal base support in a light source device according to an embodiment of the present invention. 5 is a longitudinal cross-sectional view showing a state in which the metal base structure is held by the metal base support in the light source device according to the embodiment of the present invention. Figs. 3(a) and 3(b) are diagrams showing the concave portion of the light source device of the embodiment of the present invention formed on the abutting surface of the metal base structure and the metal base support. 10(a) and 4(b) are partial longitudinal sectional views showing a concave portion of a light source device according to an embodiment of the present invention. Fig. 5 is a view showing the shape of the concave portion and the block member of the light source device of the embodiment of the present invention. Figs. 6(a) and 6(b) are diagrams showing the processing method of the block of the light source device of the embodiment of the present invention. Fig. 7 is a partial longitudinal sectional view showing a state in which a lamp having no concave portion ® is attached to a metal base support in the light source device according to the embodiment of the present invention. Figure 8 is a conventional discharge lamp having a metal base. Fig. 9 is a longitudinal cross-sectional view showing a state in which the metal base of the conventional discharge lamp is held by the metal base support of the light source. [Description of main component symbols] ~ 1...metal base structure 13...metal base protrusion 11···base 14...first concave portion 12···abutment surface 2···block 13 200816257 3...metal base Supporting seat 53···anode 32...hole 54...cathode 33· _·metal base support abutment surface 55...internal lead bar 34·.second concave portion 56...external lead rod 4... Conductive plate 57... Conductive metal foil 5... Quartz bulb 58... Adhesive 50... Discharge lamp body 59... Silver can 51... Light-emitting tube 52... Sealing tube 14