M311893 八、新型說明： 【新型所屬之技術領域】 本新型是有關於一種光學鏡片，特別是指一種可提高 強度且不易刮傷的強化鏡片。 【先前技術】 目前市面上光學鏡片用的材質，主要可分為玻璃、高 刀子樹脂及pc (碳酸醋）鏡片。其中，玻璃鏡片雖然透光 性佳、易於加工且抗刮傷，但卻厚重以及存在有容易碎裂 • 的缺點。相反的，樹脂及PC鏡片，雖然質輕、不易破碎， 但表面硬度則較差’因此，必須在外層艘上硬化膜之防刮 處理。 另外’鏡片的製作流程上，通常是將素材胚料切削後 ’再將鏡片研磨至所欲之厚薄度，接著，再進行超音波之 表面清潔’然後將鏡片定心’再將鏡片的外表面施以鍍膜 的程序，此鍍膜除了前述的防刮硬化膜（Scratch— resistant coating)外，通常可為防反光干擾、漫射的多 鲁層膜（Anti-reflection coating)，以及抗水性的疏水膜 (Hydrophobic coating)…等等。 但是，鏡片的胚料在切割時所施加的外力，在無形中 會造成内應力及表面張力的變化，造成鏡片的強度降低。 如此一來，當鏡片邊緣要鑽孔以鎖設螺絲時（尤其針對無邊 框之眼鏡），鏡片結構脆弱的缺點，會導致缺角破片之虞。 其次，由於鏡片在鍍膜時，必須先加熱及抽真空，在 達到高真空狀態後，才能開始鍍膜。而在鏡片内應力未消 5 M311893 除的情形下即進行加熱處理，會始得鏡片的表面鍍膜處理 效此不佳。所以鏡片在一段時間的使用後，容易因熱脹冷 縮的作用下，造成表面鍍膜的剝落，因而降低鏡片的使用 哥命。 【新型内容】 因此，本新型之目的，即在提供一種強度與耐磨損度 再提高，且可增加使用壽命的強化鏡片。 其次，本新型的另一目的，是在提供一種鏡片上的鍍 膜不易剝落的強化鏡片。 於疋，本新型強化鏡片，是經超冷處理後，再經過緩 k回火製成，該強化鏡片包含一基材舆至少一鍍膜層。該 基材為一透光片體且符合於使用者的眼睛區域，並具有一 Ik厚度增大曲率的外表面，及一與該外表面相反的内表面 。該鍍膜層是在進行超冷處理前即先被覆於該基材的外表 面，使該鍍膜層符合於該基材外表面的曲率半徑，以獲得 具抗反射、高穿透率的作用。 此外，本新型之強化鏡片亦可增加一硬化層，該硬化 曰了 I用石夕氧燒共聚物、聚甲基丙烯酸共聚物所組成，並 且可選擇性地被覆在該鍍膜層的外表面，《是該基材的内 表面上，藉以增加鏡片的抗刮能力。 【實施方式】 有關本新型前述及其他技術内容、特點與功效，在以 下配合參考圖式之數較佳實施例的詳細說明中，將可清楚 的明白。 6 M311893 本實施例被詳細描述之前，要注意的是，在以下的說 明中，類似的元件是以相同的編號來表示。 參閱第1圖與第2圖，本新型強化鏡片之第一較佳實施 例’該鏡片100主要是供配製成眼鏡使用，且包含有一基 材10及至少一鍍膜層20。 該基材10,為一透光片體且符合於使用者的眼睛區域 ’其材質可選用各種高分子材料，例如聚甲基丙烯酸甲酿 (★PMMA)、聚碳酸醋（PC)、聚酿氨（PA)、高分子無機樹脂 • 等其中一種，或任一種以上材質所製成，並且，該基材10 具有一隨厚度增大曲率的外表面u，以及一與該外表面u 相反的内表面12。 該錢膜層20，是在進行超冷處理前，即先被覆於該基 材10的外表面11上，使該鍍膜層2〇符合於該基材1〇外表 面11的曲率半徑，且完全覆蓋該外表面U，以獲得具抗反 射、尚穿透率的作用。該鍍膜層2〇可選擇性地採用化學鍍 膜法（浸鍍、喷鍍）或物理鍍膜法（真空蒸鍍、離子鍍） 鲁 ㈤方式被覆在該基材10上，所使用之材料可選自於氧化鈹 (Be〇)、氧化鋁（八丨2〇3)、硫化鋅（ZnS)氧化鎂（Mg〇)、氟化 鎂（MgF2)、二氧化矽（Si〇2)等其中一種，或任一種以上 材料所組成的無機金屬氧化材料鍍膜，以獲得具抗反射、 高穿透率及導電性之鏡片。此鍍膜較為業界所周知的可為 增透膜、抗反光膜、遽光膜、偏光膜··等等。於本實施例中 ，該鍍膜層20是採用複層式的抗反光多層膜，由於其鍍膜 原理及多層膜之作用以為習知技藝，故此不多加贅述。 M311893 糟此’經過切削且鑛膜後的該鏡片1 Ο 〇，必須另外施以 超冷處理（sub-zero)，其是將低溫的液態氮對鏡片100進行 吸熱降溫，為了防止鏡片100急速冷卻收縮而造成表面的 龜裂，因此降溫的速率必須緩慢，並使鏡片10〇長時間保 持在低溫環境中，藉以提高鏡片1〇〇硬度。接著，在預定 時間後’再對鏡片100施以緩慢之昇溫加熱，此目的在釋 放鏡片100切削加工或熱處理後所殘留之應力，防止鏡片 100產生變形及脆裂。 參 因此，本新型的鏡片100利用超冷處理後可有效地提 高強度（耐磨耗性高、變形量低、耐腐蝕），一方面提昇了 鏡片100材料的物理性質，鏡片100之抗刮性增強，而且 ，因材料的可變形量（收縮率）降低，因此可延緩該鍍膜 層20的剝落時間，使用壽命性提高。 參閱第3圖，是本新型的第二較佳實施例，其結構均 與第一實施例相同，其差異僅在於：該鏡片1〇〇更包含有 一硬化層30，該硬化層3〇同樣是在鏡片進行超冷處理前， • 即預先被覆在該鑛膜層20的-外表面21上，且該硬化層 3〇疋由矽氧烷共聚物、聚甲基丙烯酸共聚物所組成，以增 加鏡片100的抗刮效果。 參閱第4 ® ’是本新型的第三較佳實施例，其·結構均 與第-實施例相同，其差異僅在於：該鏡片100更包含有 一硬化層40,該硬化層4G是被覆在該基材1G的—内表面 12 ’以防止刮傷鏡片1〇〇。 f、、、内上述相車乂於現有光學鏡片之缺失，本新型強化 8 M311893 鏡片確實具有以下功效及優點： 、增加強度·本新型的鏡片100利用超冷處理後， 改變鏡片100材料結晶狀態，確實可增加其機械強度與使 用壽命，使鏡片100鍍膜後的效能佳，加工時不會有缺角 破片之虞。且鏡片100經實際的實驗測試後，可提高一倍 以上之硬度及耐磨損度，以及霧化後恢復效果快的優點。 一、延緩鍍膜脫落時間：鏡片100在長時間低溫的超 冷處理下，除了硬度提高外，材料本身熱漲冷縮的變形量 φ 亦降低，因此可加強該鍍膜層20的附著力，延緩該鍍膜層 20的剝落時間，避免鍍膜因長時間使用造成脫落。 參閱第5圖，本新型除了應用於眼鏡用鏡片外，亦可 使用在非球面鏡片200,或是相機、攝影機或各類事務機的 光學鏡頭上（見第5圖中的假想線），其同樣包含有一基材1〇 、至少一鍍膜層20，以及一硬化層3〇。 該基材10,為一透光片體，具有一平滑的外表面η及 一與該外表面11相反的内表面12。 • 該鑛膜層2〇,具有透光及反光性，而完全被覆於該基 材10的外表面u，其材質及作用已如第一實施例所述，故 不再贅述。 該更化層3G ’疋在進4超冷處理前，即先被覆於該錢 膜層20的-外表面21上’以防止刮傷該鑛膜層2()。 值得-提的是，本新型亦可運用於安全帽之擔風鏡片 ，以及電腦螢幕的護目鏡上，同樣可達成上述實施例相同 之效果，此不再多加繪製圖式。 M311893 惟以上所述者，僅為本新型之數較佳實施例而已，當 不能以此限定本新型實施之範圍，即大凡依本新型申請專 利範圍及新型說明内容所作之簡單的等效變化與修飾，皆 應仍屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 第1圖是一立體圖，係繪示本新型之強化鏡片的第一 較佳實施例。 第2圖是沿第1圖之2_2剖切的一剖面圖，係繪示本新 型之鏡片在基材上被覆鍍膜層的結構狀態。 第3圖是一剖面圖，係繪示本新型之第二較佳實施例 ，即為本新型的鏡片在鍍膜層外表面被覆上一硬化層的結 構狀態。 第4圖是一剖面圖，係繪示本新型之第三較佳實施例 ，即為本新型的鏡片在基材的内表面上被覆上一硬化層的 結構狀態。 第5圖是一剖面圖，說明本新型應用在非球型鏡片上 的鏡片結構。 10 M311893 【主要元件符號說明】 100.......鏡片 200 .......鏡片 10 .........基材 11 .......••外表面 12 .........内表面 20 .........鍍膜層 21 .........外表面 30.........硬化層 40······…硬化層M311893 VIII. New description: [New technical field] The present invention relates to an optical lens, in particular to a reinforced lens which can improve strength and is not easily scratched. [Prior Art] Materials currently used in optical lenses on the market are mainly classified into glass, high knife resin and pc (carbonated vinegar) lenses. Among them, although the glass lens has good light transmittance, is easy to process, and is scratch-resistant, it is thick and has the disadvantage of being easily broken. On the contrary, resin and PC lenses, although light in weight and not easily broken, have poor surface hardness. Therefore, it is necessary to cure the film on the outer layer of the film. In addition, 'the production process of the lens is usually after cutting the material blank, then grinding the lens to the desired thickness, then polishing the surface of the ultrasonic wave' and then centering the lens' and then the outer surface of the lens. In addition to the aforementioned scratch-resistant coating, the coating is usually an anti-reflective interference, a diffuse anti-reflection coating, and a water-repellent hydrophobic film. (Hydrophobic coating)...etc. However, the external force applied by the blank of the lens during cutting causes a change in internal stress and surface tension, resulting in a decrease in the strength of the lens. In this way, when the edge of the lens is to be drilled to lock the screw (especially for the frameless glasses), the disadvantage of the fragile structure of the lens may result in the smashing of the broken corner. Secondly, since the lens must be heated and evacuated when it is coated, the coating can be started after the high vacuum is reached. However, if the stress in the lens is not removed, the surface treatment of the lens will be ineffective. Therefore, after a period of use of the lens, it is easy to cause peeling of the surface coating due to thermal expansion and contraction, thereby reducing the use of the lens. [New content] Therefore, the object of the present invention is to provide a reinforced lens which is improved in strength and wear resistance and can increase the service life. Secondly, another object of the present invention is to provide a reinforced lens in which the coating on the lens is not easily peeled off. Yu Yu, the new reinforced lens is made by super-cooling treatment and then subjected to slow k tempering. The reinforced lens comprises a substrate 舆 at least one coating layer. The substrate is a light transmissive sheet and conforms to the eye area of the user and has an outer surface having an Ik thickness increasing curvature and an inner surface opposite the outer surface. The coating layer is coated on the outer surface of the substrate before the ultra-cold treatment, so that the coating layer conforms to the radius of curvature of the outer surface of the substrate to obtain anti-reflection and high transmittance. In addition, the reinforced lens of the present invention may also be provided with a hardened layer which is composed of a cerium oxide copolymer and a polymethacrylic acid copolymer, and is selectively coated on the outer surface of the coating layer. "It is on the inner surface of the substrate to increase the scratch resistance of the lens. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. 6 M311893 Before the present embodiment is described in detail, it is to be noted that in the following description, similar elements are denoted by the same reference numerals. Referring to Figures 1 and 2, a first preferred embodiment of the present reinforced lens is used primarily for spectacles and includes a substrate 10 and at least one coating layer 20. The substrate 10 is a transparent sheet and conforms to the eye area of the user. The material of the substrate 10 can be selected from various polymer materials, such as polymethyl methacrylate (PMMA), polycarbonate (PC), and poly brewing. One of the ammonia (PA), the polymer inorganic resin, or the like, or any one or more materials, and the substrate 10 has an outer surface u having a curvature increasing in thickness, and a surface opposite to the outer surface u Inner surface 12. The money film layer 20 is coated on the outer surface 11 of the substrate 10 before the ultra-cold treatment, so that the coating layer 2〇 conforms to the radius of curvature of the outer surface 11 of the substrate 1 and is completely covered. The outer surface U is used to obtain anti-reflection and penetration. The coating layer 2 can be selectively coated on the substrate 10 by an electroless plating method (dip plating, sputtering) or a physical plating method (vacuum evaporation, ion plating), and the material used can be selected from the group consisting of In the case of cerium oxide (Be〇), aluminum oxide (Bagua 2〇3), zinc sulfide (ZnS) magnesium oxide (Mg〇), magnesium fluoride (MgF2), cerium oxide (Si〇2), or the like, or An inorganic metal oxide material consisting of any one of the above materials is coated to obtain a lens having antireflection, high transmittance and conductivity. The coating is well known in the art as an antireflection film, an antireflection film, a calender film, a polarizing film, and the like. In the present embodiment, the coating layer 20 is a multi-layered anti-reflective multilayer film. Since the coating principle and the function of the multilayer film are conventional techniques, they will not be described again. M311893 The lens 1 Ο 经过 after cutting and after the mineral film must be additionally subjected to sub-zero, which is to absorb and cool the lens 100 by low-temperature liquid nitrogen, in order to prevent the lens 100 from rapidly cooling and shrinking. The surface is cracked, so the rate of cooling must be slow, and the lens 10 is kept in a low temperature environment for a long time, thereby improving the hardness of the lens. Then, after a predetermined period of time, the lens 100 is subjected to a slow heating, which serves to release the stress remaining after the lens 100 is cut or heat-treated to prevent deformation and embrittlement of the lens 100. Therefore, the lens 100 of the present invention can effectively improve the strength (high abrasion resistance, low deformation, and corrosion resistance) by using the ultra-cold treatment, and on the one hand, the physical properties of the material of the lens 100 are improved, and the scratch resistance of the lens 100 is enhanced. Further, since the amount of deformation (shrinkage) of the material is lowered, the peeling time of the coating layer 20 can be delayed, and the service life can be improved. Referring to Fig. 3, it is a second preferred embodiment of the present invention, the structure of which is the same as that of the first embodiment, except that the lens 1 further includes a hardened layer 30, which is also Before the lens is subjected to the ultra-cold treatment, the front layer 21 is pre-coated on the outer surface 21 of the mineral film layer 20, and the hardened layer 3 is composed of a siloxane copolymer and a polymethacrylic acid copolymer to increase the lens. 100 scratch resistance. Referring to the fourth preferred embodiment of the present invention, the structure is the same as that of the first embodiment, and the difference is only that the lens 100 further includes a hardened layer 40, and the hardened layer 4G is coated thereon. The inner surface 12' of the substrate 1G prevents the lens 1 from being scratched. f,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, It can really increase its mechanical strength and service life, so that the lens 100 has good performance after coating, and there is no shortage of corners during processing. Moreover, after the actual experimental test, the lens 100 can improve the hardness and wear resistance more than twice, and the effect of quick recovery after atomization. 1. Delaying the coating film falling time: Under the ultra-cold treatment of the lens 100 for a long time, in addition to the hardness improvement, the deformation amount φ of the material itself is also reduced, so that the adhesion of the coating layer 20 can be enhanced, and the coating is delayed. The peeling time of the layer 20 prevents the coating from falling off due to prolonged use. Referring to Fig. 5, the present invention can be applied to an aspherical lens 200, or an optical lens of a camera, a camera, or a variety of printers, in addition to the lens for glasses (see the imaginary line in Fig. 5). Also included is a substrate 1 〇, at least one coating layer 20, and a hardened layer 3 〇. The substrate 10 is a light transmissive sheet having a smooth outer surface η and an inner surface 12 opposite the outer surface 11. • The mineral film layer 2 is light-transmissive and reflective, and is completely covered on the outer surface u of the substrate 10. The material and function thereof are as described in the first embodiment, and therefore will not be described again. The reforming layer 3G' is first coated on the outer surface 21 of the money film layer 20 before the ultra-cold treatment to prevent scratching of the mineral film layer 2(). It is worth mentioning that the present invention can also be applied to the windshield lens of the helmet and the goggles of the computer screen, and the same effect as the above embodiment can be achieved, and the drawing is no longer required. M311893 However, the above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change made by the novel patent application scope and the new description content is Modifications shall remain within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a first preferred embodiment of the reinforced lens of the present invention. Fig. 2 is a cross-sectional view taken along line 2-2 of Fig. 1 showing the structural state of the coating of the new type of lens on the substrate. Fig. 3 is a cross-sectional view showing a second preferred embodiment of the present invention, i.e., a structural state in which a lens of the present invention is coated with a hardened layer on the outer surface of the coating layer. Fig. 4 is a cross-sectional view showing a third preferred embodiment of the present invention, i.e., a structural state in which the lens of the present invention is coated with a hardened layer on the inner surface of the substrate. Figure 5 is a cross-sectional view showing the lens structure of the present invention applied to an aspherical lens. 10 M311893 [Explanation of main component symbols] 100.......lens 200 .......lens 10 .........substrate 11 .......•• outer surface 12 ......... inner surface 20 ... ... coating layer 21 ... ... outer surface 30 ... ... hardened layer 40 · ·····...hardened layer
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