1337176 六、 [0001] [0002] 發明說明： 【發明所屬之技術領域】 本發明係關於一種模仁結構 鏡之複合模仁結構。 年08月31日修正替換瓦] 尤指一種用於模造玻璃透 [0003] [0004] [0005] [0006] [0007] [0008] 094108450 【先前技術】 模仁廣泛應用於模壓成丨制 ，特別係製造光學玻璃産 品’如非球面玻璃透錆、 球透鏡、稜鏡等，採用直接模 壓成型（Direct Pregc； — b-m〇lding)技術可直接生產光學 玻璃産品，無需打磨、枷 抛先等後續加工步驟，可大大提 高生産效率及産量，且产α 五產°。質量好。但直接模壓成型法 對於模彳-的化讀n抗熱衝擊性能、機械強度、表 面光滑度料錢高。因此，難成魏術之發展實際 上主要取決於社材料及壯製造技術之進步。對於模 壓成型之模仁一般有以下要求： (1)在高溫時’具有良好之剛性 '耐機械衝擊強度及硬度 (2) 在反復及快速加熱冷卻之熱衝擊下模仁不產生裂紋及 變形； (3) 在高溫時模仁成型表面與光學玻璃不發生化學反應， 不黏附玻璃； (4) 不發生高溫氧化； (5) 加工性能好，易加工成高精度及高表面光潔度之型面 (6)成本低。 表單编號Α0101 第3 f/共15頁 0993312246-0 1337176 099年08月31日垵正替換頁 [0009] 傳統模仁大多採用不錢鋼或耐熱合金作爲模仁材料，這 種模仁容易發生高溫氧化，在反復熱衝擊作用下，會發 生晶粒長大，從而模仁表面變粗糙，黏結玻璃。 [0010] 爲解決上述問題，非金屬及超硬合金被用於模仁。據報 導，碳化矽（SiC)、氮化矽（Si3N4)、碳化鈦（TiC)、碳 化鎢（WC)及碳化鎢-鈷合金已經被用於製造模仁。然而， 上述各種碳化物陶瓷硬度非常高，很難加工成所需要之 外形，特別係高精度非球面形。而超硬合金除難以加工 外，使用一段時間之後還可能發生高溫氧化。 [0011] 因此，以碳化物或超硬合金爲模仁基底，其表面形成有 其他材料鍍層或覆層之複合結構模仁成爲新的發展方向 。典型複合結構模仁如美國專利第4, 685/948號及第 5, 202, 1 56號。 [0012] 美國專利第4, 685, 948號揭示一種用於直接模壓成型光 學玻璃産品的複合結構模仁。其採用高強度的超硬合金 、碳化物陶瓷或金屬陶瓷作爲模仁基底，並在模仁的模 壓面形成有銥（Ir)薄膜層，或銥（Ir)與鉑（Pt) '銖 (Re)、锇（Os)、铑（Rh)或釕（Ru)的合金薄膜層，或釕 (Ru)薄膜層，或釕（Ru)與翻（Pt)、銖（Re)、锇（Os)、 錢（Rh)的合金薄膜層。 [0013] 美國專利第5, 202, 1 56號揭示一種製備用於光學玻璃産 品的複合結構模仁的方法。其採用高強度的超硬合金、 碳化物陶瓷或金屬陶瓷作爲模仁基底，並在模仁的模壓 面形成一層類金剛石膜（DLC，Diamond Like Carbon) 094108450 表單編號A0101 第4頁/共15頁 0993312246-0 UJ7176 〇 099年08月31日俊正替換頁 [0014] [0015] [0016] [0017] [0018] 台灣專利申請第92203565號亦揭露一種模造玻璃之金屬 模仁’其栎用碳化鶴為主的超硬合金為底材，表面藏鍵 以组鎢（Ta-W)合金取代貴金屬薄膜層’以降低成本。 上述各種模仁結構分別採用責金屬、類金剛石膜及钽鎢 合金薄膜，使模仁性質有所提高，或提高離型能力或提 向機械強度，但由於薄膜層成份單一，從而產生局限性 ’使其離型能力與機械強度二者通常難以兼得。 故，上述複合模仁結構之薄膜層在使用較長時間後，容 易出現枯結玻璃、膜層剝離（peeling Off)或產生微裂 紋等不良現象，從而影響模仁精度及模壓成型玻璃産品 質量，限制其使用壽命。 因此，提供一種同時具有高機械強度及優良離型能力之 模造玻璃透鏡之模仁結構實為必要。 ί發明内容】 為解決習知技術之模仁結構容易產生微裂紋、剝離現象 ，以及不易脫模之問題，以下將通過若干實施例說明一 種具有良好離型能力以及高機械強度之模造玻璃透鏡模 [0019] 〇94丨〇845〇 為實現上述内容，提供一種模造玻璃透鏡之模仁，其包 括-模仁基體，其係由超硬合金或陶兗製成，該模仁基 體具有一表面；及一膜層覆蓋於該模仁基體之表面；其 令該膜層包括非晶質碳化料續基體及分佈於該非晶質 碳化料續基體t之奈轨結晶碳切微粒，該奈米級 表單編號A010丨 第5頁/共15頁 0993312246-0 1337176 [0020] [0021] [0022] [0023] [0024] [0025] 099年08月31日按正替換頁 ，结晶碳化石夕微粒之摩爾百分含量為勝權。 優選的，所述模仁基體係由SiC、Si、Si3N4、Zr〇2 '1337176 VI [0001] [0002] [Technical Field] The present invention relates to a composite mold structure of a mold structure mirror. Modified replacement tile on August 31, 2011. Especially for molding glass through [0003] [0004] [0006] [0007] [0008] 094108450 [Prior Art] Molding is widely used in molding into a tanning system. In particular, the manufacture of optical glass products such as aspherical glass enamels, ball lenses, enamels, etc., can be directly produced by direct molding (Direct Pregc; - bm〇lding) technology, without polishing, smashing, etc. The processing steps can greatly improve the production efficiency and output, and produce α five production °. Good quality. However, the direct compression molding method has a high cost for the thermal shock resistance, mechanical strength, and surface smoothness of the mold. Therefore, the development of Weishu is difficult to achieve in fact, mainly depends on the progress of social materials and manufacturing technology. For molded parts, the following requirements are generally met: (1) 'has good rigidity' at high temperature, and is resistant to mechanical impact strength and hardness. (2) The mold does not cause cracks and deformation under the thermal shock of repeated and rapid heating and cooling; (3) At high temperature, the molded surface of the mold does not chemically react with the optical glass, and does not adhere to the glass; (4) Does not undergo high temperature oxidation; (5) It has good processing properties and is easily processed into a profile with high precision and high surface finish ( 6) Low cost. Form No. 1010101 3f/Total 15 Page 0993312246-0 1337176 099 August 31 垵正换页[0009] Most of the traditional mold cores use non-crown steel or heat-resistant alloy as the mold material, which is easy to occur. High temperature oxidation, under the repeated thermal shock, grain growth will occur, so that the surface of the mold is roughened and the glass is bonded. [0010] In order to solve the above problems, non-metals and super-hard alloys are used for the mold core. It has been reported that niobium carbide (SiC), tantalum nitride (Si3N4), titanium carbide (TiC), tungsten carbide (WC), and tungsten carbide-cobalt alloy have been used to manufacture mold cores. However, the above various carbide ceramics have a very high hardness and are difficult to process into a desired shape, particularly a high-precision aspherical shape. In addition to being difficult to process, superhard alloys may undergo high temperature oxidation after a period of use. [0011] Therefore, it is a new development direction to use a carbide or a super-hard alloy as a base of a mold, and a composite structure in which other materials are plated or coated on the surface thereof. Typical composite structure molds are disclosed in U.S. Patent Nos. 4,685/948 and 5,202,1,56. [0012] U.S. Patent No. 4,685,948 discloses a composite structural mold for direct compression molding of optical glass products. It uses a high-strength super-hard alloy, carbide ceramic or cermet as the base of the mold, and forms an iridium (Ir) film layer on the molded surface of the mold, or iridium (Ir) and platinum (Pt) '铢 (Re ), an alloy film layer of 锇 (Os), 铑 (Rh) or 钌 (Ru), or a ruthenium (Ru) film layer, or ruthenium (Ru) and ruthenium (Pt), ruthenium (Re), osmium (Os), Alloy film layer of money (Rh). [0013] A method of preparing a composite structural mold for an optical glass product is disclosed in U.S. Patent No. 5,202,156. It uses a high-strength super-hard alloy, carbide ceramic or cermet as the base of the mold, and forms a diamond-like film (DLC, Diamond Like Carbon) on the molded surface of the mold. 094108450 Form No. A0101 Page 4 of 15 0993312246-0 UJ7176 08 99 08 08 08 08 08 08 08 08 08 08 08 08 08 台湾 台湾 台湾 [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ The main super-hard alloy is a substrate, and the surface is hidden by a group of tungsten (Ta-W) alloy instead of the precious metal film layer to reduce the cost. The above various mold core structures are respectively made of metal, diamond-like film and tantalum-tungsten alloy film, which improves the properties of the mold, or improves the release ability or the mechanical strength. However, due to the single composition of the film layer, the limitation is produced. It is often difficult to achieve both the release ability and the mechanical strength. Therefore, after using the film layer of the composite mold core structure for a long period of time, it is prone to undesirable phenomena such as dry glass, peeling off or microcracking, thereby affecting the precision of the mold and the quality of the molded glass product. Limit its service life. Therefore, it is necessary to provide a mold structure of a molded glass lens having both high mechanical strength and excellent release ability. SUMMARY OF THE INVENTION In order to solve the problem that the mold structure of the prior art is prone to microcracking, peeling, and difficulty in demolding, a molded glass lens mold having good release ability and high mechanical strength will be described below by way of several embodiments. [0019] 实现94丨〇 845〇 In order to achieve the above, a molded glass lens mold is provided, which comprises a mold core, which is made of superhard alloy or ceramic, the mold base has a surface; And a film layer covering the surface of the matrix of the mold; the film layer comprises an amorphous carbonized material continuous substrate and a nano-crystalline carbon cut particle distributed on the amorphous carbonized material continuous substrate t, the nano-form No. A010丨 Page 5/15 pages 0993312246-0 1337176 [0020] [0024] [0025] [0025] On August 31, 099, according to the replacement page, the mole of crystalline carbonized carbide particles The percentage is the winning right. Preferably, the mold base system is composed of SiC, Si, Si3N4, Zr〇2'
Al2〇3、TlN、Ti02、TiC、B4C、WC、W或WC-Co製成。 膜層之結晶碳化錢粒之粒徑為5 ] G G奈米範圍内。 在其中一實施例中’該模仁進一步包括一中間層，其夾 於補仁基體與該膜層之間。中間層可增強膜層與模仁 基體間之枯著性及穩定性。 優選的，所述令間層之厚度小於1微米》 相較於先前技術，本技術巧之模造玻璃透鏡之模仁主 要係由不易被氧化的碳化矽材料構成，包括非晶質碳化 夕及高硬度之奈米級結晶碳化石夕，由於非晶質碳化石夕含 有sp鍵結，使得其潤滑性良好，故，模壓玻璃產品容易 脫模；而奈米級結晶碳化矽具有高硬度、粒徑小，既可 增強模仁表面之機械強度，亦有利於提高模造面之精度 。故，本技術方案之模仁結構具有高機械強度、抗氧化 、化學穩定性優良且容易脫模之特點。 【實施方式】 請一併參閱第一圖及第二圖，本發明第一實施例之模仁 10包括底材12、形成於底材丨2表面之鍍膜〗4。其中該底 材12可由鬲強度的超硬合金、氧化物或碳化物陶瓷金 屬陶瓷製成，包括由以下物質為主要材料經燒結製造而Made of Al2〇3, TlN, Ti02, TiC, B4C, WC, W or WC-Co. The particle size of the crystalline carbonized grain of the film layer is in the range of 5] G G nanometer. In one embodiment, the mold core further includes an intermediate layer sandwiched between the matrix of the filler kernel and the film layer. The intermediate layer enhances the dryness and stability between the film layer and the matrix of the mold core. Preferably, the thickness of the interfacial layer is less than 1 micron. Compared with the prior art, the mold of the molded glass lens of the prior art is mainly composed of a niobium carbide material which is not easily oxidized, including amorphous carbonization and high The hardness of the nano-scale crystalline carbonized stone, because the amorphous carbonized stone contains sp bond, so that its lubricity is good, so the molded glass product is easy to demould; and the nano-scale crystalline niobium carbide has high hardness and particle size. Small, not only can enhance the mechanical strength of the surface of the mold, but also improve the precision of the mold surface. Therefore, the mold structure of the technical solution has the characteristics of high mechanical strength, oxidation resistance, chemical stability and easy demoulding. [Embodiment] Referring to the first and second figures together, the mold core 10 of the first embodiment of the present invention comprises a substrate 12 and a coating film 4 formed on the surface of the substrate 2 . Wherein the substrate 12 can be made of a high strength hard alloy, oxide or carbide ceramic metal ceramic, including the following materials:
得：SiC、Si、Si3N4、Zr〇2、Al2〇3、TiN、Ti〇2、TiC 、B4C、WC、W或WC-Co。底材12之表面可初步形成預定 形狀，即與待模壓之光學玻璃產品相對應之形狀，例如 094108450 表單編號A0101 第6頁/共15頁 0993312246-0 1337176 099年08月31日 非球面形、半球面等。如此，有利於使得直接形成於底 材12表面之鍵膜14亦具有與上述預定形狀基本相同之模 造面18，並由該模造面18構成模壓凹槽16。這樣，於實 際製造時，上述模造面18可在該預定形狀基礎上進一步 施以精密微細加工，容易獲得所需精確形狀及所需精度 ，降低加工難度及成本。 [0026] 所述鍍膜14係由碳化矽材料沈積而成，包括非晶質碳化 矽21 (Amorphous-si 1 icon Carbide)及奈米級結晶碳 化矽22(Nano Crystalline-silicon Carbide)。非 晶質碳化矽21係連續層’可作為奈米級結晶碳化矽22之 基體，而奈米級結晶破化碎2 2係離散或部分連續分佈於 整個非晶質碳化矽21基體中，其含量佔鍍膜14總量 1 0 %〜4 0 % (摩爾百分比）。奈米級結晶碳化石夕2 2之粒徑係 奈米級’最好係在5〜100奈米範圍内》而鍍膜14之厚度可 在1微米至100微米範圍内。 [0027]Obtained: SiC, Si, Si3N4, Zr〇2, Al2〇3, TiN, Ti〇2, TiC, B4C, WC, W or WC-Co. The surface of the substrate 12 may be preliminarily formed into a predetermined shape, that is, a shape corresponding to the optical glass product to be molded, for example, 094108450 Form No. A0101 Page 6/15 pages 0993312246-0 1337176 Aug. 31, 2008 Aspherical shape, Hemispherical surface, etc. Thus, it is advantageous that the bonding film 14 formed directly on the surface of the substrate 12 also has a molding surface 18 substantially the same as the above-described predetermined shape, and the molding surface 18 constitutes the molding groove 16. Thus, in actual manufacturing, the molding surface 18 can be further subjected to precise microfabrication based on the predetermined shape, and the desired precise shape and required precision can be easily obtained, and the processing difficulty and cost can be reduced. The coating film 14 is deposited from a tantalum carbide material, and includes an amorphous carbon dioxide 21 (Amorphous-si 1 icon Carbide) and a nano crystalline silicon carbide 22 (Nano Crystalline-silicon Carbide). The amorphous tantalum carbide 21 series continuous layer ' can be used as a matrix of nano-scale crystalline tantalum carbide 22, and the nano-scale crystalline broken ground 2 2 is discretely or partially distributed continuously throughout the entire amorphous tantalum carbide 21 matrix. The content accounts for 10% to 40% (mol%) of the total amount of the coating film 14. The nano-scale crystalline carbonized stone has a particle size of 2 2, preferably in the range of 5 to 100 nm, and the thickness of the coating 14 is in the range of 1 to 100 μm. [0027]
上述實施例中，模仁底材12可通過燒結或其他加工方法 製備而成。如上所述，底材12最好於此製備過程中初步 形成預定之形狀或接近此形狀，以利於後續形成基本相 同形狀之鍍膜14。鍍膜14可通過電漿化學氣相沈積法 (Plasma Chemical Vapor Deposition)或減鍵法 (Sputtering)形成，例如微波電漿化學氣相沈積法 (Microwave Plasma Chemical Vapor Deposition) 、共鑛法（Co-sputtering)及反應減鑛法（Reactive Sputtering)等。為達到更高精度，可進一步對鍍膜14 進行微細加工，最終獲得所需之模造面18。 094108450 表單蝙號A0101 第7頁/共15頁 0993312246-0 1337176 099年08月31日梭正替换頁 [0028] 本實施例之模仁1〇，其模仁底材12具有高硬度，高機械 強度之特點，可承受高溫模壓時產生的壓力及應力。模 壓面被經膜14覆蓋’其係由不易被氧化的碳化矽材料組 成，包括較軟之非晶質碳化矽21及高硬度之奈米級結晶 石反化石夕2 2 ’由於非晶質碳化石夕21含有s p2鍵結，使得其淵 滑性良好，故，模壓玻璃產品容易脫模；而奈米級結晶 故化碎2 2具有高硬度、粒徑小，既可增強模仁表面之機 械強度’亦有利於提高模造面之精度。故，本實施例之 模仁結構具有高機械強度、抗氧化、化學穩定性優良且 容易脫模之特點。 [0029] 請參閱第三圖，本發明第二實施例之模仁2〇包括底材12 、鍵膜14以及夾於二者之間的中間層23。其中，底材 可由尚強度的超硬合金、氧化物或碳化物陶瓷或金屬陶 兗製成，包括由以下物質為主要材料經燒結製造而得：In the above embodiment, the mold base material 12 can be prepared by sintering or other processing methods. As described above, the substrate 12 is preferably initially formed into a predetermined shape or close to this shape during the preparation process to facilitate subsequent formation of the coating film 14 of substantially the same shape. The coating 14 can be formed by Plasma Chemical Vapor Deposition or Sputtering, such as Microwave Plasma Chemical Vapor Deposition and Co-sputtering. ) and Reactive Sputtering. In order to achieve higher precision, the coating 14 can be further micro-machined to finally obtain the desired molding surface 18. 094108450 Form bat number A0101 Page 7 / Total 15 page 0993312246-0 1337176 On August 31, 2008, the shuttle is replacing the page [0028] The mold core of this embodiment has a high hardness and high mechanical strength. The strength is characterized by the pressure and stress generated during high temperature molding. The molding surface is covered by the film 14 which is composed of a niobium carbide material which is not easily oxidized, including a soft amorphous carbonized crucible 21 and a high hardness nanocrystalline crystal stone deuterium 2 2 ' due to amorphous carbon Fossil eve 21 contains s p2 bond, which makes it smooth, so the molded glass product is easy to demould; and the nano-crystal crystallization 2 2 has high hardness and small particle size, which can enhance the surface of the mold. Mechanical strength 'is also beneficial to improve the precision of the molded surface. Therefore, the mold structure of the present embodiment has the characteristics of high mechanical strength, excellent oxidation resistance, chemical stability, and easy release. Referring to the third figure, the mold core 2 of the second embodiment of the present invention includes a substrate 12, a key film 14, and an intermediate layer 23 sandwiched therebetween. Among them, the substrate can be made of super-hard alloy, oxide or carbide ceramic or metal ceramics of the strength, including the following materials:
Sic 、 Si 、 Si3N4 、 Zr〇2 、 Al2〇3 、 TiN 、 Ti〇2 、 Tie ' B4C ' WC、W或WC-Co。底材12之表面可初步形成大致接 近預定形狀，即大致接近待模壓之光學玻璃產品相對應 之形狀，例如非球面形、半球面等。如此，可使得後續 形成於底材12表面之中間層23及鍍膜14亦具有與上述預 定形狀基本相同之結構，並由該模造面18構成模壓凹槽 16。這樣，於實際製造時，上述模造面〗8可在該預定形 狀基礎上進一步施以精密微細加工，容易獲得所需精確 形狀及所需精度，降低加工難度及成本。中間層23可採 用習知技術之材料，其主要作用係增強鍍層14之粘著性 及穩定性，防止金屬離子擴散至模壓之玻璃產品。一般 094108450 表單編號A0101 第8頁/共15頁 0993312246-0 1337176 099年08月31日修正替换頁 而言，中間層23之厚度心㈣ ’例如小於1微米。 [_所祕膜14係'由碳切#料沈積而成包括非晶質碳化 石夕21及奈米級結晶碳化石夕22。非晶質碳化石夕21係連續層 • ’可作為奈米級結晶碳化石夕22之基體；而奈米級結晶碳 ， 化石夕22係離散或部分連續分佈於整個非晶質碳化矽21基 體中’其含量佔鍍膜14總量ι〇%~40%(摩爾百分比）。奈 米級結晶碳化石夕22之粒徑係奈米級’最好係在5〜1〇〇奈米 範圍内。而鑛膜14之厚度可在1微米至10〇微米範圍内。 [0031] 本實施例之製備方法可採用以下步驟：首先，底材1 2可 通過燒結或其他加工方法製備而成，如上所述，底材12 最好於此製備過程中初步形成預定之形狀或接近此形狀 ，以利於後續形成基本相同形狀之鍍膜14。然後，可採 用濺鍍方法直接於底材12表面形成厚度較薄的中間層23 。再於中間層23表面形成鍍膜14 ’方法包括電漿化學氣 相沈積法或減鑛法，例如微波電漿化學氣相沈積法、共 鍍法及反應濺鍍法等。最後，為達到更高精度，可進一 步對鍍膜14進行微細加工’最終獲得所需之模造面18。 [0032] 本實施例之模仁20，除具有與第一實施例相似之高機械 強度、抗氧化、化學穩定性優良且容易脫模之特點外， 還進一步提高鍍膜14之粘著性及穩定性，以及提高防止 金屬離子擴散能力之特點° [0033] 本發明上述實施例可適用於模造破螭透鏡，或其他光學 元件。 [0034] 綜上所述，本發明符合發明專利要件，爰依法提出專利 094108450 表單編號 A0101 第 9 頁/共 15 頁 0993312246-0 1337176 099年08月31日修正替換頁 [0035] [0036] [0037] [0038] [0039] [0040] [0041] [0042] [0043] [0044] [0045] 申請。惟，以上所述者僅為本發明之較佳實施方式，本 發明之範圍並不以上述實施方式為限，舉凡熟悉本發明 技藝之人士，在援依本發明精神所作之等效修飾或變化 ，皆應包含於以下之申請專利範圍内。 【圖式簡單說明】 第一圖係本發明模造玻璃透鏡之模仁第一實施例之結構 剖示圖。 第二圖係第一圖模仁之鍍膜結構部分放大圖。 第三圖係本發明模造玻璃透鏡之模仁第二實施例之結構 剖示圖。 【主要元件符號說明】 模仁：10，20 底材：12 鍍膜：14 凹槽：16 模造面：18 非晶質碳化矽：21 奈米級結晶碳化矽：22 中間層：23 094108450 表單編號A0101 第10頁/共15頁 0993312246-0Sic, Si, Si3N4, Zr〇2, Al2〇3, TiN, Ti〇2, Tie 'B4C 'WC, W or WC-Co. The surface of the substrate 12 may be initially formed substantially in a predetermined shape, i.e., substantially corresponding to the shape of the optical glass product to be molded, such as an aspherical shape, a hemispherical surface, or the like. Thus, the intermediate layer 23 and the plating film 14 which are subsequently formed on the surface of the substrate 12 can have substantially the same structure as the predetermined shape described above, and the molding surface 18 constitutes the molding groove 16. Thus, in actual manufacturing, the above-mentioned molding surface 8 can be further subjected to precise micro-machining on the basis of the predetermined shape, and the desired precise shape and required precision can be easily obtained, and the processing difficulty and cost can be reduced. The intermediate layer 23 may be made of a material of the prior art, and its main function is to enhance the adhesion and stability of the plating layer 14 and prevent metal ions from diffusing to the molded glass product. General 094108450 Form No. A0101 Page 8 of 15 0993312246-0 1337176 Revised replacement page on August 31, 099, the thickness of the intermediate layer 23 (4) is, for example, less than 1 micron. [_The secret film 14 series' is deposited from carbon cut material including amorphous carbon carbide 21 and nanocrystalline carbonized carbide. Amorphous carbonized carbide Xi 21 series continuous layer • 'can be used as the base of nano-scale crystalline carbonized stone Xi 22; and nano-scale crystalline carbon, fossil Xi 22 series discrete or partially distributed throughout the entire amorphous tantalum carbide 21 matrix Medium's content accounts for ι〇%~40% (mol%) of total coating 14. The particle size of the nanocrystalline carbonized carbide eve 22 is preferably in the range of 5 to 1 nanometer. The thickness of the mineral film 14 can range from 1 micron to 10 micron. [0031] The preparation method of the embodiment may adopt the following steps: First, the substrate 12 may be prepared by sintering or other processing methods. As described above, the substrate 12 is preferably formed into a predetermined shape during the preparation process. Or close to this shape to facilitate subsequent formation of the coating 14 of substantially the same shape. Then, a thinner intermediate layer 23 can be formed directly on the surface of the substrate 12 by a sputtering method. Further, a method of forming a plating film 14' on the surface of the intermediate layer 23 includes a plasma chemical vapor deposition method or a reduced ore method, such as a microwave plasma chemical vapor deposition method, a co-plating method, and a reactive sputtering method. Finally, in order to achieve higher precision, the coating 14 can be further micromachined to finally obtain the desired molding surface 18. [0032] The mold core 20 of the present embodiment further improves the adhesion and stability of the coating film 14 in addition to the characteristics of high mechanical strength, oxidation resistance, chemical stability and ease of demolding similar to those of the first embodiment. Characteristics, and the ability to improve the ability to prevent diffusion of metal ions. [0033] The above embodiments of the present invention are applicable to molded break lenses, or other optical components. [0034] In summary, the present invention meets the requirements of the invention patent, and the patent is filed according to law. 094108450 Form No. A0101 Page 9 of 15 0993312246-0 1337176 Modified on August 31, 2009, [0035] [0036] [ [0038] [0044] [0044] [0045] [0045] [0045] application. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or changes in the spirit of the present invention will be apparent to those skilled in the art. , should be included in the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a cross-sectional view showing the structure of a first embodiment of a mold for molding a glass lens of the present invention. The second figure is a partial enlarged view of the coating structure of the first figure mold. Fig. 3 is a cross-sectional view showing the structure of a second embodiment of the mold for molding a glass lens of the present invention. [Main component symbol description] Mold: 10,20 Substrate: 12 Coating: 14 Groove: 16 Molded surface: 18 Amorphous carbide: 21 Nanocrystalline carbonized carbide: 22 Intermediate layer: 23 094108450 Form No. A0101 Page 10 of 15 page 0993312246-0