1¾ 96118362號專利申請案 說明書 九、發明說明： t明戶rf屬戈^老t相牙】 發明領域13⁄4 96118362 Patent Application Manual IX. Invention Description: t Minghu rf belongs to Ge ^ old t-phase teeth] Field of invention
本發明係有關於-種光源裝置，特別是有關_種可容 易女裝產生紫外線之適當的放電燈之光源裝置。 t先前技術：J 發明背景 以往，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，具有產生紫外線之放電燈之光源裝置 ，使用於曝光。此種放電燈係如第8圖所示，由石英燈泡$、 陽極53、陰極54、内部引線棒55、外部引線棒56、填封管 金屬基部構造體1所構成。石英燈泡5係由球狀之發光The present invention relates to a light source device, and more particularly to a light source device for a suitable discharge lamp that can easily produce ultraviolet light. BACKGROUND OF THE INVENTION Conventionally, in a semiconductor device (IC), a liquid crystal panel (LCD), or a printed wiring board (PCB), a light source device having a discharge lamp for generating ultraviolet rays is used for exposure. As shown in Fig. 8, the discharge lamp is composed of a quartz bulb $, an anode 53, a cathode 54, an inner lead bar 55, an outer lead bar 56, and a sealing tube metal base structure 1. Quartz bulb 5 is made of spherical light
Li、2個填封官52構成。陽極53與陰極54係對向配置於發 ^ S 51中°利用内部引線棒55支持陽極53與陰極54並且進 通電填封管52中，内部引線棒55與外部引線棒％係由 =之導_金屬㈣連接且填封成氣 構造體1_定於㈣f52。 由美習:之金屬基部構造體1係如第9圖之縱截面圖所示， 端2 Hl與金屬基部突出部13構成。基底部11係其中~ 屬美:二板狀之抵接面12封住之大徑的 圓筒狀的部分。金 置^突出部13係貫通圓板狀之抵接面12之中央而直立設 接著之小徑的部分。大徑之基底部11係以接著劑58 引線棒5封S 52。小徑之金屬基部突出部13插通有有外部 、’ 6，且以銀蠟59黏接。 1362680Li, two seals 52 constitutes. The anode 53 and the cathode 54 are disposed opposite to each other in the anode 51. The anode 53 and the cathode 54 are supported by the inner lead rod 55, and the inner lead rod 55 and the outer lead rod are controlled by the inner lead rod 55. _ metal (four) connected and sealed into a gas structure 1_ is set at (four) f52. The metal base structure 1 of the present invention is composed of a terminal 2 H1 and a metal base protruding portion 13 as shown in a longitudinal sectional view of Fig. 9. The base portion 11 is a cylindrical portion having a large diameter which is closed by the abutting surface 12 of the two plates. The gold projection portion 13 is formed so as to penetrate the center of the disc-shaped abutting surface 12 and to erect the portion having the smaller diameter. The base portion 11 of the large diameter is sealed with S 52 by an adhesive 58 lead bar 5. The metal base projection 13 of the small diameter is inserted through the outer portion, and is adhered by silver wax 59. 1362680
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 之光于1±牝，因此党點必須設在凹面鏡的前面且經常於一 疋之位置。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 須在每一次交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，亮點之位置也不會變化。並且於金屬基部 支持座3之扎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！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 I5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，會成為光源裝置故障的原 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，陰極會顯著消耗，壽命會顯著變短。因此， 20於放電燈之金屬基部等明確表示極性促使注意放電燈之 安裝方向。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 6 1362680 第96118362號專利申請案 說明書替換頁 2011.11.3 在光源裝置亮燈。又，也想到於燈之金屬基部形成顯示燈 • 之製造者名之凹或凸狀記號，並嵌入於形成有凸或凹之裝 ·. 置側之金屬基部支持座。藉由該等方法，於光源裝置安裝 燈之作業者可藉由金屬基部與金屬基部支持座之間的凹凸 5 無法嵌合而注意到其為不適合之燈。 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 是，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】日本實用新型公報實開昭59-181576 15 【專利文獻2】日本專利公開公報特開平04-042260 【發明内容】 發明概要 本發明之目的在於解決上記習知之問題，且為可容易 製造一使用者可容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 造體之金屬基部支持座；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 7 1362680 第96118362號專利申請案 說明書替換頁 2011.11.3 屬基部構造體具有：大徑之圓筒狀基底部；小徑之金屬基 ' 部突出部；及為連接前述基底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； 5 為前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。 藉由上述構成，可以便宜價錢且容易製造具有用以定 10 位燈之刻印之金屬基部構造體與金屬口部支持座。 【實施方式3 較佳實施例之詳細說明 ' 以下，參照第1圖〜第7圖詳細說明實施本發明之最佳形 • 態。 15 本發明之實施例係一種於放電燈之金屬基部端面形成 刻印有表記號之凹狀部，且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表記號成鏡面對稱之裏記號 之凹狀部，並於兩凹狀部之間嵌入仿照有表記號之塊件之 光源裝置。 20 第1圖係顯示於本發明之實施例中之光源裝置之金屬 基部支持座安裝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 底部、小徑之金屬基部突出部、基底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 8 申請案 說明書替--^ΓΓΰΙ~~ 基。ρ構ieH而保持燈之構件。放電燈％係具有放電電極、 石英燈泡、填封管與金屬基部構造體之燈。 第2圖係顯示金屬基部構造體安裝於金屬基部支持座 ^狀態之縱截面圖。第2圖中，塊件2係用以決定與金屬基 P構ie體與金屬基部支持座抵接之面嵌合之位置之定位構 件基底。卩11係金屬基部之大徑圓筒狀部分。抵接面12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。金屬基部突出部丨3係金屬基部之小徑部分。孔3 2係金 屬土卩支持座之孔，且為金屬基部突出部插入之部分。抵 =33為金屬基部支持座之端面，且為與金屬基部抵接之 P刀填封管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羯之構 件。導電性金屬H 57係用以電性連接外部引線棒與内部弓丨 ，棒之構件。接著劑58係用以於填封管固定金屬基部之接 著劑銀it59剌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 14係於金屬基部刻印有表記號之凹狀部。令鏡面文字之記 號為襄記號’且為了與此區別，令_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。p °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 圖係用以顯示光源裳置之塊件的加卫方法者。第7圖係顯示 1362680 2011.11.3 第96118362號專利申請案 沒有凹狀部之燈安裝於金屬基部线座之狀態之縱截面 圖。又，各射，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。 說明如上所構成之本發明之實施例令光源裝置之機能 5與動作。首先’參照第卜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 造可確認放電燈之適合性且可正確地安裝於光源裝:之金 10屬基部與金屬基部支持座。 即，於金>1基部構祕丨與金屬基料㈣3形成鏡面 =稱之第-凹狀部14與第二凹狀部34。第一凹狀部Μ與第 I凹狀部34使用雷射而可正確地形成。以壓製方式將具有 η 2㈣m，34之深度之和對應之厚度之導電板馨通作成 、1凹狀部14及第二凹狀部34相合之塊件2,並嵌入第二 凹狀=34°當將金屬基部構造體1插人金屬基部支持座3 队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—凹狀部14嵌合。藉由塊件2,可決定 金屬基°P構造體1與金屬基部支持座3之位置’並可正確地 20進行兩者的安裝。 立其次，參照第3圖與第4圖說明記號之刻印方法。金屬 :P構1^體1由：―端面被圓板狀之抵接面12封住之大徑圓 2狀之基底部U、及貫通平面狀之抵接面12之中央而直立 。又置成同輪狀之小徑金屬基部突出部13所構成。如第3圖所 10 第96118362號g利申請案 說明書替換頁 2011.11.3 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 示，在與其對應之金屬基部支持座3之平面狀之抵接面33， 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X、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 二凹狀部34之s己號作為如第5圖所示之文字或圖形。使用顯 不製造者之公司名或放電燈之型式或光源裝置型式之文 字。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。 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工而形成。亦可使塊件2不 分離成複數而適當連結成一體化。藉由令塊件 方之凹部雜之合計為«相同之數值， 及金屬基部支持座3之抵接面會沒有間隙而可均一地連接。 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2嵌入於金屬基部支 持座3之第二凹狀部34。塊件2係具有在已嵌人金屬^支 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 1362680 第96118362號專利申請案__說明書替換頁_ 20111" 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 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 5凹狀部34之塊件2之由金屬基部支持座3上端面突出之面狀 部分嵌合。 其次，參照第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丨之抵接面12之 凹狀記號14，因此如第7圖所示，不會與嵌入於金屬基部支 10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 可確涊燈為適合之燈，並可正確地定位，因此亮點的位置 15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 表記號呈鏡面對稱之裏記號凹狀部，並於兩凹狀部之間嵌 20入印有表記號之塊件，因此可僅安裝適合之放電燈。 産業上之可利用性 本發明之光源裝置係適合在半導體裝置（Ic)或液晶面 板(LCD)或印細己線板(PCB)等之製程中使用於#光之光源 裝置。 25 【圓式簡翠說明】 12 1362680 第96118362號專利申請案 說明書替換頁 2011.11.3 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。 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。 5 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 部。 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，（a)為A-A截面圖，（b)為B-B截面圖。 10 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，（A)係顯示商標（公司名稱文字等）之記號， (B)係顯示商標（標識)之記號，（C)係顯示符號(燈型號、裝置 名稱等）之記號。 第6(a)、（b)圖係顯示本發明之實施例之光源裝置之塊 15 件的加工方法者，（a)為上面圖，（b)為截面圖。 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 11...基底部 12.··抵接面 2···塊件 3…金屬基部支持座 32...孔 13...金屬基部突出部 33...金屬基部支持座之抵接面 14…第一凹狀部 34...第二凹狀部 13 1362680 第96118362號專利申請案 說明書替換頁 2011.11.3 4.. .導電板 5.. .石英燈泡 50.. .放電燈本體 51.. .發光管 52.. .填封管 53···陽極 55…内部引線棒 56.. .外部引線棒 57.. .導電性金屬箔 58.. .接著劑 59…銀蠟 54...陰極 14When the bright spot of the point light source is in focus with the focus of the concave mirror (objective lens), the light can be parallel. When the position of the bright spot of the discharge lamp is changed, since the prescribed light cannot be obtained at 1 ± 牝, the party point must be placed in front of the concave mirror and often at a position of one. When the discharge lamp is mounted on the light source device, the hole 32 of the metal base support holder 3 having the flat abutting surface 33 of the light source device is inserted into the metal base protrusion 13 of the metal base structure 1 and the discharge lamp is held and passed through The metal base support 3 is energized. When the position of the bright spot of each discharge lamp is different, it is necessary to adjust the bright spot of the concave mirror every time the discharge lamp is exchanged. This is a job that requires proficiency and trouble. The conventional light source device is as follows, that is, 10 causes the father to change the discharge lamp, and the position of the bright spot does not change. Further, the metal base portion 13 of the metal base structure 1 of the discharge lamp is inserted into the wire 32 of the metal base support 3 to form the metal base structure! The disc-shaped abutting surface 12 abuts against the metal base support 3. When using a discharge lamp, it must be judged whether it is an appropriate lamp, and I5 is also required to confirm whether the installation to the light source device is properly performed. When a discharge lamp that is not suitable for the light source device is mistakenly installed and turned on, it may cause a malfunction of the light source device and shorten the life, and the discharge lamp may also be broken. Short-arc type discharge lamps with DC lighting specify the polarity (cathode and anode) connected to the light source unit. Therefore, when the polarity is incorrectly connected, the cathode is significantly consumed and the life is significantly shortened. Therefore, the polarity of the metal base of the discharge lamp or the like is clearly indicated to prompt attention to the installation direction of the discharge lamp. And the shape of the terminal is changed between the cathode and the anode, and it is impossible to connect to the opposite polarity. As disclosed in Patent Document 1, it is known that a concave portion is provided at a position opposite to a metal base supporting seat of a light source device to prevent an unsuitable lamp 6 1362680 Patent Application Publication No. 96118362 Replacement Page 2011.11.3 light. Further, it is also conceivable that a metal base portion of the lamp is formed with a concave or convex mark of the name of the manufacturer of the display lamp, and is embedded in a metal base support seat on which the convex or concave side is formed. By these methods, the operator who mounts the lamp on the light source device can notice that it is an unsuitable lamp by the inconsistency between the metal base and the metal base support. It 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. Therefore, including the case where printing cannot be performed correctly, there is a problem that the printer body is not affected. 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 2] Japanese Patent Laid-Open Publication No. Hei 04-042260. SUMMARY OF THE INVENTION The present invention has an object to solve the above problems and is It is easy to manufacture a configuration in which the user can easily confirm that the light source device is suitable for the discharge lamp and that the light source device of the discharge lamp can be appropriately installed. In order to solve the above problems, the light source device of the present invention includes: a lamp having a metal base structure made of metal; a metal base support for holding the metal base structure; and a metal base structure for determining the metal base structure The locating member of the above-mentioned metal base support holder is described in the above-mentioned reference. The base structure has a large-diameter cylindrical base portion and a small-diameter metal base. a portion protruding portion; and a first abutting surface connecting the surface of the base portion and the protruding portion of the metal base portion and having a first concave portion engraved with a mark, the metal base supporting seat having: protruding from the metal base portion a hole for inserting a portion; 5 is a surface abutting the first abutting surface when the metal base structure is inserted into the metal base support, and has a second concave shape engraved with a mark that is mirror-symmetric with the aforementioned symbol The second abutting surface of the portion is configured to be fitted to the block member of the first concave portion and the second concave portion. According to the above configuration, the metal base structure and the metal mouth support having the marking for the 10-position lamp can be easily manufactured at a low price. [Embodiment 3] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, the best mode for carrying out the invention will be described in detail with reference to Figs. 1 to 7 . The embodiment of the present invention is characterized in that a concave portion with a mark is formed on an end surface of a metal base of the discharge lamp, and an end surface of the metal base support for holding the metal base is formed to be mirror-symmetric with the surface mark. A concave portion of the mark, and a light source device emulating the block with the symbol is embedded between the two concave portions. Fig. 1 is an external view showing a state in which a metal base structure of a discharge lamp is mounted on a metal base support of a light source device in an embodiment of the present invention. In Fig. 1, the metal base structure 1 has a metal base portion having a large-diameter cylindrical base portion, a small-diameter metal base projecting portion, and a metal base portion on a surface where the base portion and the metal base portion projecting portion are connected. The metal base support 3 is replaced by the metal 8 application specification -^ΓΓΰΙ~~ base. ρConstructionH and keep the components of the lamp. The discharge lamp % is a lamp having a discharge electrode, a quartz bulb, a packing tube, and a metal base structure. Fig. 2 is a longitudinal sectional view showing a state in which a metal base structure is attached to a metal base support. In Fig. 2, the block member 2 is a positioning member base for determining the position at which the surface of the metal-based P-shaped body and the metal base support abuts.卩11 is a large-diameter cylindrical portion of the metal base. The abutting surface 12 is a disk-shaped surface of the metal base portion and abuts against the surface of the metal base support. The metal base protrusion 丨3 is a small diameter portion of the metal base. The hole 3 2 is a hole of the metal soil support seat and is a portion into which the metal base protrusion is inserted. The offset = 33 is the end face of the metal base support seat, and the P-knife sealing tube 52 abutting against the metal base is used to seal the lamp into a gas-tight state. The outer lead bar 56 is a member for electrically connecting the metal base and the conductive metal crucible. The conductive metal H 57 is used to electrically connect the outer lead rod to the inner bow and the rod member. The adhesive agent 58 is used to seal the adhesive silver it59 of the metal base to seal the components of 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 14 is a concave portion in which a metal base is engraved with a symbol. Let the symbol of the mirrored text be the 襄 mark' and in order to distinguish it from this, the mark of the _like read character is the table mark. The second concave portion 34 is formed in a concave shape in which the metal base is seated 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. Figure 6 is a diagram showing the method of defending the block in which the light source is placed. Fig. 7 shows a longitudinal cross-sectional view of a state in which a lamp having no concave portion is attached to a metal base wire holder, as shown in Japanese Patent Application No. Hei. Further, for each component, the components used in Figs. 8 and 9 are assigned symbols used in Figs. 8 and 9. The embodiment of the present invention constructed as above will explain the function and operation of the light source device. First, referring to Fig. 3, an outline of the function of the light source device is described. A recessed portion is marked 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 base 10 and the metal base support which can confirm the suitability of the discharge lamp and can be correctly mounted on the light source. That is, the gold > 1 base structure and the metal base (4) 3 form a mirror surface = the first concave portion 14 and the second concave portion 34. The first concave portion Μ and the first concave portion 34 can be accurately formed using a laser. The conductive plate having the thickness corresponding to the sum of the depths of η 2 (four) m, 34 is formed into a block 2 in which the concave portion 14 and the second concave portion 34 are joined, and is embedded in the second concave shape = 34°. When the metal base structure 1 is inserted into the metal base support 3, the block 2 of 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-based ?P 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: P structure 1 is composed of: a base portion U having a large-diameter circular shape in which the end surface is closed by the disc-shaped abutting surface 12, and a center portion of the abutting surface 12 that penetrates the planar shape and stands upright. Further, it is formed by the same-wheel-shaped small-diameter metal base protruding portion 13. As shown in FIG. 3, No. 96118362, the application manual replacement page 2011.11.3 shows that the abutting surface 12 is formed with a first concave shape in which a mark of the manufacturer's trade mark number or the like is imprinted in a readable size. Part 14. As shown in Figs. 3 and 4, a second concave portion 34 inscribed with a mark having a mirror mark symmetry with the reference numeral 14 is formed on the planar abutting surface 33 of the metal base supporting seat 3 corresponding thereto. . The first concave portion 14 and the second concave portion 34 can be formed by laser processing, cutting, X, grinding, and electric discharge processing, exposure, etching, and the like. Next, the symbol will be described with reference to Fig. 5. The singular numbers formed on the first concave portion 14 and the second concave portion 34 are characters or figures as shown in Fig. 5. Use the company name of the manufacturer or the type of discharge lamp or the type of 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. Next, a method of forming a block will be described with reference to Fig. 6. 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, it may be formed by a laser cutting process. Further, the block members 2 can be appropriately joined to be integrated without being separated into plural numbers. By making the total of the concave portions of the block member "the same value", the abutting faces of the metal base support seats 3 can be uniformly connected without a gap. When the metal base structure 1 is inserted into the metal base support 3, first, the block member 2 having a size corresponding to the concave mark is fitted into the second concave portion 34 of the metal base support 3. The block member 2 has a state in which the second concave portion 34 of the metal holder holder 3 has been embedded, and the metal base support holder 3 is 1362680. Patent Application No. 96118362 __Details Replacement Page_20111" The junction 33 protrudes from the thickness of the upper portion. 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 structure 1 and the second concave portion 34 embedded in the metal base support 3 are formed. The planar portion of the member 2 projecting from the upper end surface of the metal base support 3 is fitted. Next, a case where an unsuitable lamp is mounted will be described with reference to Fig. 7. When the lamp is not suitable, since the concave mark 14 suitable for the abutting surface 12 of the metal base structure 未 is not formed, as shown in Fig. 7, it does not overlap with the block 2 embedded in the metal base 10 holder 3. The convex portion is fitted, and the lamp cannot be mounted at 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 can confirm that the lamp is a suitable lamp and can be correctly positioned, so that the position 15 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 symbol, 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 device of a semiconductor device (Ic), a liquid crystal panel (LCD), or a printed wiring board (PCB). 25 [Circular Simple Description] 12 1362680 Patent Application No. 96118362 Replacement Page 2011.11.3 Fig. 1 is an external view showing a state in which a discharge lamp is held at a metal base support in a light source device according to an embodiment of the present invention. . Fig. 2 is a longitudinal cross-sectional view showing a state in which a metal base structure is held by a metal base support in a light source device according to an embodiment of the present invention. 5 (a) and (b) are views showing a 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. 4(a) and 4(b) are partial longitudinal cross-sectional views showing a concave portion of a light source device according to an embodiment of the present invention, wherein (a) is a cross-sectional view taken along line A-A, and (b) is a cross-sectional view taken along line B-B. 10 is a diagram showing the shape of the concave portion and the block member of the light source device according to the embodiment of the present invention, (A) showing the mark of the trademark (company name text, etc.), and (B) showing the mark (mark). The symbol, (C) is the symbol of the display symbol (light model, device name, etc.). Figs. 6(a) and 6(b) are diagrams showing a method of processing a block of a light source device according to an embodiment of the present invention, wherein (a) is a top view and (b) is a cross-sectional view. 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 11...base portion 12.·contact surface 2··block 3...metal base support 32...hole 13...metal base projection 33... abutment surface 14 of metal base support seat... first concave portion 34... second concave portion 13 1362680 Patent Application Publication No. 96118362 Replacement page 2011.11.3 4.. Conductive plate 5. .. Quartz bulb 50.. .Discharge lamp body 51.. Luminous tube 52.. Filling tube 53···Anode 55...Internal lead rod 56.. External lead rod 57.. Conductive metal foil 58 .. . adhesive 59... silver wax 54... cathode 14