505560 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（1) 發明領％ 本發明有關一種用於製造隱形眼鏡之模子，本發明 的模子特別可供製造具有無缝式邊緣之眼鏡。 發明背i 5 已热知用於製造隱形眼鏡之方法及模子，譬如在以 提及方式併入本文之美國專利5,540,410號中揭露了模子 及其在製造隱形眼鏡上的用途。然而，習知的眼鏡模子的 缺點在於：無法製造無缝式眼鏡邊緣。“縫，，係指多餘眼鏡 材料構成之一條線或界限。請參照圖式，爵丨顯示具有一 10縫11之眼鏡邊緣10之特寫剖側視圖，出現此缝的缺點在 於：縫可能接觸到結膜並造成表面的粗糙、不適、或同時 造成表面的粗糙與不適。 製造具有無縫式邊緣之眼鏡時仍存在許多障礙，其 中包括：如何以不需後處理步驟即可達成一種具有側邊對 15側邊的幾何形狀變化之無縫式邊緣。此外，製造無縫式邊 緣之障礙係為前與後半模的不良配合及不良定位其中之一 或兩項因素·所造成。最後，必須在固化之前先從眼鏡修除 多餘的曝鏡材料，因此需要一種用於克服上述障礙來製造 無縫式邊緣的隱形眼鏡之模子。 20 圖式簡單說明 圖1為一種接縫式隱形眼鏡之特寫剖側視圖； 圖2為本發明之-種較佳模子的前半模之俯視圖； 圖2A為沿圖2的I-Ι之半模的剖視圖； 圖3為圖2的前半模與後半模相配合之特寫剖視 (請先閱讀背面之注意事項再填寫本頁) C--------訂---------線一505560 Printed by A7 B7, Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (1)% of invention The present invention relates to a mold for manufacturing contact lenses. The mold of the present invention is particularly suitable for manufacturing glasses with seamless edges. . The method and mold for making contact lenses are well known in the invention. For example, U.S. Patent No. 5,540,410, which is incorporated herein by reference, discloses molds and their use in making contact lenses. However, a disadvantage of the conventional spectacle mold is that it is not possible to make a seamless spectacle edge. "Seam," refers to a line or boundary formed by the excess spectacle material. Please refer to the figure. The figure shows a close-up side view of the edge 10 of the eyeglass with a 10 seam 11. The disadvantage of this seam is that the seam may touch Conjunctiva and cause surface roughness, discomfort, or both surface roughness and discomfort. There are still many obstacles in making glasses with seamless edges, including how to achieve a side-to-side pair without the need for post-processing steps. 15Seamless edges with changing geometric shapes on the sides. In addition, the obstacle to making seamless edges is caused by one or two factors of poor coordination and poor positioning of the front and rear mold halves. Finally, it must be cured Previously, the excess exposure material was removed from the glasses, so a mold is needed to overcome the above obstacles to make contact lenses with seamless edges. 20 Brief description of the drawing Figure 1 is a close-up side view of a seam contact lens View; FIG. 2 is a top view of a front mold half of a preferred mold of the present invention; FIG. 2A is a cross-sectional view of the mold half along I-I of FIG. 2; FIG. 3 is a front mold half of FIG. After mating of the mold halves close-up cutaway (Please read the Notes on the back to fill out this page) C -------- --------- Order Line
505560 A7 五、發明說明（圖； 經濟部智慧財產局員工消費合作社印製 圖3A為圖3的模子的一區域之特寫剖視圖； 圖4為圖3的後半模之仰視圖； 圖4A為沿圖4的π-η之半模的剖側視圖； 圖5為本發明的一種模子互鎖構件的實施例之一區 域的特寫剖視圖； 圖6為本發明的一種模子互鎖構件的實施例之一區 域的特寫剖視圖； 圖7為本發明的一種模子互鎖構件的實施例之一區 域的特寫剖視圖； 圖8為本發明的一種模子互鎖構件的實施例之一區 域的特寫剖视圖； 整Jfe實施倒的身細描述 本發明的模子可形成一種具有一無缝式邊緣之隱形 I5眼鏡，本發明發現可藉由提供一種具有一互鎖構件之模子 來製造無缝式隱形眼鏡。此外，採用互鎖構件將可增加— 模製表面對於另-模製表面之控制，此種增加控制的作用 可製成多種眼鏡邊緣輪廓中的任何一種。因此，一項^於 例中，本發明提供—種料製造隱形眼鏡之模子，、= 20含、主要包括、及包括：―前半模 構件。 I千棋及-互鎖 “互鎖構件，，係指㈣在半财㈣ 有前半模與後半模作側邊對侧邊移動之任 1質所 本發明的模子所採用的互鎖構件係包含前\^佳， 動或被 5 10 未紙張尺度翻，_轉（CNS)A4霜―x (請先閱讀背面之注咅？事項再填寫本頁) 裝 A7 B7 五、發明說明（3 5 10 15 經濟部智慧財產局員工消費合作社印製 20 動式:合後半模的1鎖部份之一部份。 圖3及3八顯示—種互鎖構件的範例，其中顯示本發 :Γ!ί模子之各種視圖。參照圖3a，模子包含兩個互 =料模個前半模1〇2及一後半模⑼。前半模1〇2疋一個具有—光學品質凹形表面110之中央彎曲段，凹 、j面11G在具有_個在周圍延伸之圓形周圍清楚界定狀 _ U1如圖3A所示’邊緣111連同後表面周圍邊緣 構成後續㈣的隱形賴所収-個清楚K且均勾 的塑性半徑分隔線。邊緣111通常具有約3至45微米或 Μ、,較佳約5至約3G微米之曲率，且界定邊緣的表面 可忐形成約75至約90度範圍的角度。 參照圖3A’ -項較佳實施例中，一個前半模互鎖表 面出係從邊緣111朝向内配合表面114往上彎曲延伸並 延續。互鎖表面m從邊緣1U以約15至約75度、較佳 約60度角在與凹形表面11〇的對稱軸線呈法線方向或垂 直,平面上方延伸。内配合表面114從互鎖表面112呈 umc向往外延伸。同樣地，後半模1⑽具有從周圍 适緣12Q往上及往外延伸之後半模互鎖表面I〗？。本發明 的模子之所有實關巾，前錢钱的互鎖表面具有互補 性形狀，使得表面堅固配合在-起妓量❹或防止半模 產生=邊對側邊的位移。此外’互鎖構件可在眼鏡材料沉 積在前半模上之後有利地放置後半模。 參照圖2、2A、3、3A ’圖中前半模1〇2的凹形表面 113係從凹开》表面11〇概呈平行分佈，而一概呈單平面性505560 A7 V. Description of the invention (picture; printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Figure 3A is a close-up sectional view of a region of the mold of FIG. 3; FIG. 4 is a bottom view of the rear mold of FIG. 3; 4 is a cross-sectional side view of a half mold of π-η; FIG. 5 is a close-up cross-sectional view of an area of an embodiment of a mold interlocking member of the present invention; FIG. 6 is one of embodiments of a mold interlocking member of the present invention A close-up cross-sectional view of a region; FIG. 7 is a close-up cross-sectional view of a region of an embodiment of a mold interlocking member of the present invention; FIG. 8 is a close-up cross-sectional view of a region of an embodiment of a mold interlocking member of the present invention; Jfe implemented a detailed description of the mold of the present invention to form a contactless I5 lens with a seamless edge, and the present invention has found that a seamless contact lens can be manufactured by providing a mold with an interlocking member. In addition, The use of interlocking members will increase the control of the -moulding surface to the other-moulding surface, and this increased control can be used to make any of a variety of eyewear edge contours. The present invention provides a mold for making contact lenses from seeds, == 20 containing, mainly including, and including:-the first half mold member. I Qianqi and-interlocking "interlocking member," means "in half wealth" have The front half mold and the rear half mold are any side-to-side movement. The interlocking member used in the mold of the present invention includes the front part, which can be moved by the 5 10 unpaper scale, and the (CNS) A4 cream. ―X (Please read the note on the back? Matters before filling out this page) Install A7 B7 V. Invention Description (3 5 10 15 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 20 Action type: 1 lock part of the rear half mold Figures 3 and 38 show an example of an interlocking member, which shows various views of the mold: Γ! Ί mold. Referring to Figure 3a, the mold contains two mutual = front mold half 1 2 and a rear mold half. The front mold half 102 has a central curved section with an optical quality concave surface 110, and the concave and j-faces 11G are clearly defined around _ with a circle extending around it. U1 is shown in the figure The 'edge 111' shown in 3A, along with the peripheral edge around the rear surface, constitutes the invisibility of the subsequent ridge-a clear K and The plastic radius separation line of the hook. The edge 111 usually has a curvature of about 3 to 45 microns or M, preferably about 5 to about 3 G microns, and the surface defining the edge can form an angle in the range of about 75 to about 90 degrees. Fig. 3A '-In a preferred embodiment, a front half-mold interlocking surface is curved and extends upward from the edge 111 toward the inner mating surface 114 and continues. The interlocking surface m is about 15 to about 75 degrees from the edge 1U. An angle of approximately 60 degrees extends in a normal direction or perpendicular to the symmetry axis of the concave surface 11 and extends above the plane. The inner mating surface 114 extends outwardly from the interlocking surface 112 in umc. Similarly, the rear mold half 1⑽ has a distance from the periphery. After the suitable edge 12Q extends upward and outward, the half-mold interlocking surface I? . The interlocking surfaces of all the front and back towels of the mold of the present invention have complementary shapes so that the surface is firmly fitted in the amount of prostitutes or prevents the mold from generating = side-to-side displacement. In addition, the ' interlocking member can advantageously place the rear mold half after the eyeglass material is deposited on the front mold half. Referring to Figs. 2, 2A, 3, and 3A ', the concave surface 113 of the front half mold 102 is distributed in parallel from the recessed surface 11 and is generally uniplanar.
(請先閱讀背面之注意事項再填寫本頁) 裝 505560 A7 B7 五、發明說明（ 10 15 20 合 作 社 印 製 %狀凸、、彖1G6係與内配合表面ιι4為_體狀並在與凹形表 面U〇的對稱軸線呈法線方向或垂直方向之〆平面中從表 面 〃 112役向往外延伸。前半模互鎖表面U2係與内 配合表面114呈延續狀，内配合表面m則與單平面性環 狀凸緣^06呈延續狀。後半模互鎖表面117係與外配合表 面118王延績狀，往外推拔壁II9與外配合表面II8呈延 縯狀且往上延伸。 如圖3及3 A仏- 所不，模子的一項較佳實施例中，凸形 义9 Μ後周圍邊緣12Q之間的接點係為内圓角狀或為 凹形接點116。肉圓, ^ ^ ^ 111角的曲率半徑較佳約為1〇微米 至約250微半、西# " ιηΩ 、更^約30微米至約100微米。凸形表面 109、内圓自n 6 + 、及後周圍邊緣120係界定了腔體1〇1 鏡鑄&的後表面邊緣形狀。對於本發明的此種較佳 所^成的一種眼鏡’如圖3所示，除了為無縫式之外， 之1的眼鏡邊緣將具備設有—邊緣内圓角與邊緣平坦部 二個後表面。此崎邊緣的雜可在賴穿戴者結膜與 可：：間平順地接觸並避免衝擊到結膜。此外，此種形狀 供丨仙將眼淚抽至眼鏡下方。最後，邊緣形狀可提 徑的眼球上移動，其中内圓角具有愈大的曲率半 炎愈多的邊緣平坦部升高離開眼鏡穿戴者的結膜。 ^照圖3Α，互鎖表面117從後表面周圍 十 =延伸，此互職面117«平行狀且具有約削微 ! = 300微米、較佳約125微米的曲率半徑。互鎖表面 。以約15至約75度、較佳約6〇度角從邊緣12〇往 (請先閱讀背面之注意事項再填寫本頁) ---I----訂------ 參 -6_ :29Γ公釐Γ 505560(Please read the precautions on the back before filling this page.) 505560 A7 B7 5. Description of the invention (10 15 20 Cooperative printed% -convex, 彖 1G6 series and inner mating surface ιι4 is _body-shaped and concave-shaped The axis of symmetry of the surface U0 extends outward from the surface 〃 112 in the normal or vertical plane. The interlocking surface U2 of the front mold is continuous with the inner mating surface 114, and the inner mating surface m is a single plane. The annular flange ^ 06 is a continuation. The interlocking surface 117 of the rear mold half and the outer mating surface 118 are extended, and the wall II9 and the outer mating surface II8 are pushed out and extended upward. See Figures 3 and 3 A 仏-No, in a preferred embodiment of the mold, the contacts between the peripheral edges 12Q after the convex shape 9M are rounded or concave contacts 116. Meatballs, ^ ^ ^ The curvature radius of the angle 111 is preferably about 10 micrometers to about 250 micro-half, west ohms and more about 30 micrometers to about 100 micrometers. The convex surface 109, the inner circle from n 6 +, and the rear peripheral edge The 120 series defines the shape of the rear surface edge of the cavity 101 mirror cast. For this preferred embodiment of the present invention, As shown in FIG. 3, in addition to being seamless, the edge of one of the glasses will be provided with two rear surfaces, namely, the inner fillet of the edge and the flat portion of the edge. The wearer's conjunctiva can be used to: smoothly contact and avoid impact on the conjunctiva. In addition, this shape is used to draw tears under the glasses. Finally, the edge shape can be moved on the eyeball with a diameter increase, and the fillet has The larger the curvature, the more the edge flatness rises away from the conjunctiva of the spectacle wearer. ^ According to FIG. 3A, the interlocking surface 117 extends from around the rear surface, and this interworking surface 117 is parallel and has a cut Micro! = A radius of curvature of 300 microns, preferably about 125 microns. Interlocking surfaces. From an edge of 120 to about 15 to about 75 degrees, preferably about 60 degrees (Please read the precautions on the back before filling out this (Page) --- I ---- Order ------ Ref.-6_: 29Γmm Γ 505560
經濟部智慧財產局員工消費合作社印製 外L伸並與内配合表面118呈延續狀。除了提供-個主 動或被動，配合在表面112内的互補性表面之外，表面 了在C鑄眼鏡邊緣上形成—邊緣平坦部，以將前與後 眼鏡邊緣接點提高_穿戴者的結膜。表面117與後表面 5周圍邊緣120具有36〇度接觸並在固化期間施壓在後或前 半模上而確實具有36〇度接觸並盡量減少前與後半模之間 的傾斜或非平行性。 如圖3、3A、4及4A所示，後半模103具有相隔表 面109及115以及一概呈單平面性環狀凸緣1〇5，單平面 10性壞狀凸緣105係在與凸形表面1〇9軸線呈法線方向之一 平面中呈徑向往外延伸。前半模1〇2具有凹形表面11〇且 足夠平滑而可使隱形眼鏡具有光學上可接受的品質，此凹 形表面110可使得未膨漲眼鏡的前曲線尺寸壓鑄在模子 中。後半模103係由一光學品質凸形表面1〇9及一概呈平 15行的凹形表面115來界定一個中央彎曲段。凸形表面1〇9 可使得眼鏡的未膨漲後表面曲線尺寸受到壓鑄並足夠平滑 而使所形淹的眼鏡表面具有光學上可接受的品質。前半模 102的凸形表面in及後半模103的凹形表面115不需具 有適合構成光學品質表面之表面’本發明的一或兩個半模 20可設有模片（moldtabs)，如美國專利5,540,410號所示。 熟悉本技藝者瞭解:本發明的模子所用之互鎖構件及 表面可能具有數種構造。互鎖構件及互鎖表面的其他範例 構造描述於圖5至8中，所選用的構造係取決於所採用的 前與後半模尺寸。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁} 裝 訂--------- %| 經濟部智慧財產局員工消費合作社印製 505560 五、發明說明（ 回5中，二個概呈延續狀的平坦表面m 在圖中以約120度至約165度角從後表面周圍邊緣120分 別往上彳工向往外、往下延伸。具有與表面131、132、 133互補形狀之表面134、135、136係分別從前表面錢 5 U1延伸，以將表面堅固配合在一起。 、，圖6顯示互鎖構件之另一項實施例，其中—第二後 互鎖表面137係、鄰近互鎖表面m，❿第二互鎖表面138 則鄰近互鎖表面112。表面137較佳為球型且具有約小 於、大於、或較佳等於表面138之曲率半徑。目7及8描 10述本發明的互鎖構件之另一種替代方式。 本發明的模子可藉由將-種可聚合化材料進行聚合 化而有效地用於製造隱形眼鏡。較佳，利用本發明模子製 成的1½形眼鏡係為未水合式眼鏡，眼鏡僅由本技藝習方法 進订水合、或膨漲即可配戴。前半模102及後半模⑻可 I5由任何適當材料構成，包括但不限於玻璃或一種熱塑性聚 合物4父佳，模子係由一種對於紫外線足夠透明的材料構 成以讓照射貫穿而促進—種隱形眼鏡材料(較佳為一種柔 軟的隱形眼鏡材料）之聚合化仙。構成本發明半模之較 佳的熱塑性材料係為聚苯乙烯及聚丙稀。各個半模可由相 20同或與另-半模不同之材料所構成，可利用任何方便的方 法’較佳如吴國翻5,54〇,41(M虎所述的方法來製成半 模。 二本發明的模子中，更佳，後半模1()3的構成材料係 比所半模1〇2更硬或更何壓縮。若本發_半模構造為 -8- 本紙張尺度適用中國®^準（CNS^g^ χ挪公^------- C請先閱讀背面之注音？事項再填寫本頁} 裂--------訂--------- 505560 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（7 採用種車父軟的如半模材料將可在對於模子施壓時 使後表面=圍邊緣12G衝擊或整平前表面周圍邊緣⑴， 如此可在則與後半模的分隔線上從模腔101移除多餘的眼 2材料。或者，可採用—個比前半模更軟之後半模，使得 5前表面周圍邊緣111衝擊在後邊緣12〇上。 所有實施例中，將前與後半模設計為可使熱量快速 傳輸通過但亦有足夠剛性而能承受脫模時將模子分開之撬 取力。可在製造隱形眼鏡的任何方法中使用本發明的模 子。但較佳採用如美國專利5,54〇,41〇號所述之製造方 1〇法:一般而言，較佳方法中，較佳以注射方式將某數量的 可聚合成份放置在前半模102的凹形表面11〇上。後半模 103係放置在可聚合成份上，其中後半模1〇3的凸形表= 係朝向前半模102的凹形表面11〇。較佳，所採^的 可聚合成份的容積係大於腔體1〇1的容積。因此，將後半 15杈103放置在前半模1〇2上將造成多餘的材料流入半模凸 緣之間所形成的區域丨21内。凸形表面1〇9較佳比凹形表 面110更突:以利定出中心位置。 乂、 一旦已將半模103放在前半模1〇2上之後，較佳利 用約1至約5石旁力量將半模壓合在一起，可將力量=' 20箭頭所示的線施加至凸緣105及1〇6中的一或兩者。;由 任何方便方式來施力，包括但不限於使用空氣壓力、链如 彈簧等機械裝置、或組合方式。一項實施例中，採用一種 位於凸緣上之平坦形沉積喷嘴、或是一種可部份配合在半 杈102或103内的錐形與平坦形組合之喷嘴。在可聚八 (請先閱讀背面之注咅？事項再填寫本頁) 裝---- 訂--------- _9_ 505560 A7 B7 五、發明說明（ 份進行聚合化作用的全程皆保持施力。 可聚合成份較佳可藉由暴露於紫外線照射而加以聚 合，在完成聚合之後，前與後半模102及103構成的模子 係分別拆解，且壓鑄眼鏡係進行額外的處理。 (請先閱讀背面之注意事項再填寫本頁) 杜衣—— 訂--------- % 經濟部智慧財產局員工消費合作社印製 -10- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 505560 經濟部智慧財產局員工消費合作社印製 A7 B7_五、發明說明（9 ) 圖示之代號說明： 代表符號：名稱 13:第二互鎖表面 101:腔體 5 102:前半模 103:後半模 105:單平面性環狀凸緣 106:單平面性環狀凸緣 109:光學品質凸形表面 10 110:光學品質凹形表面 111:前表面邊緣 112:前半模互鎖表面 113··凹形表面 114:内配合表面 15 115:概呈平行的凹形表面 116:凹形接點 117:後泮模互鎖表面 118:内配合表面 119:往外推拔壁 20 120·.後周圍邊緣 121:區域 131:概呈延續狀的平坦表面 132:概呈延續狀的平坦表面 133:概呈延續狀的平坦表面 -11- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) _§ ai-i «ϋ 1 ^^1 一口γ -li 1 Β-ϋ ϋ— —BBi I · 505560 A7 B7 五、發明說明（ 137: .後互鎖表面 (請先閱讀背面之注意事項再填寫本頁) 裝--------訂---------^9— 經濟部智慧財產局員工消費合作社印製 2 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the outer L is extended and is continuous with the inner mating surface 118. In addition to providing a complementary surface, active or passive, that fits within the surface 112, the surface is formed on the edge of the C-cast glasses—a flat edge, to increase the contact between the front and rear glasses—the wearer's conjunctiva. Surface 117 is in contact with the rear surface 5 around the edge 120 and is pressed on the rear or front mold half during curing but does have 36 ° contact and minimizes tilt or non-parallelism between the front and rear mold half. As shown in FIGS. 3, 3A, 4 and 4A, the rear mold half 103 has separated surfaces 109 and 115 and a generally uniplanar annular flange 105, and a uniplanar 10-shaped bad flange 105 is attached to the convex surface. The 109 axis extends radially outward in one of the planes of the normal direction. The front mold half 102 has a concave surface 11 and is smooth enough to make the contact lens of optically acceptable quality. This concave surface 110 allows the front curve size of the unexpanded glasses to be die-cast into the mold. The rear mold half 103 is defined by a central curved section with an optical quality convex surface 109 and a concave surface 115 of approximately flat 15 rows. The convex surface 109 can make the non-swelled surface curve size of the glasses die-cast and smooth enough to make the surface of the spectacles of optically acceptable quality. The convex surface in of the front mold half 102 and the concave surface 115 of the rear mold half 103 do not need to have a surface suitable for constituting an optical quality surface. One or two mold halves 20 of the present invention may be provided with mold tabs, such as US patents No. 5,540,410. Those skilled in the art understand that the interlocking members and surfaces used by the molds of the present invention may have several configurations. Other examples of interlocking members and interlocking surfaces. The construction is described in Figures 5 to 8. The construction chosen depends on the size of the front and rear mold halves used. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling out this page} Binding ---------% | Staff of Intellectual Property Bureau, Ministry of Economic Affairs Printed by a consumer cooperative 505560 5. Description of the invention (back to 5, two flat surfaces m that are generally continuous in the figure are angled from the surrounding edge 120 on the rear surface upward and outward at an angle of about 120 degrees to about 165 degrees, Extending downward. Surfaces 134, 135, and 136 with complementary shapes to the surfaces 131, 132, and 133 extend from the front surface 5 U1, respectively, to firmly fit the surfaces together. Figure 6 shows another item of interlocking members In the embodiment, the second rear interlocking surface 137 is adjacent to the interlocking surface m, and the second interlocking surface 138 is adjacent to the interlocking surface 112. The surface 137 is preferably spherical and has about less than, greater than, or more It is preferably equal to the radius of curvature of the surface 138. Heads 7 and 8 describe another alternative way of the interlocking member of the present invention. The mold of the present invention can be effectively used for manufacturing by polymerizing a polymerizable material Contact lenses. Preferably, made using the mold of the present invention The formed 1½-shaped glasses are unhydrated glasses, and the glasses can be worn only by being hydrated or expanded by this technique. The front half mold 102 and the rear half mold I5 can be made of any suitable material, including but not limited to glass. Or a thermoplastic polymer 4, the mold is composed of a material that is sufficiently transparent to ultraviolet rays to allow irradiation to penetrate and promote-a polymerization of a contact lens material (preferably a soft contact lens material). The invention constitutes The preferred thermoplastic materials for the mold halves are polystyrene and polypropylene. Each mold half can be composed of materials that are the same as or different from the other mold halves. Any convenient method can be used. , 54〇, 41 (M Tiger described in the method to make a half mold. Two molds of the present invention, more preferably, the material of the rear half mold 1 () 3 is harder than the half mold 102 or more Compression. If this hair _ half mold structure is -8- This paper size is applicable to China ® ^ (CNS ^ g ^ χ Norwegian ^ ------- C Please read the phonetic on the back? Matters before filling out this page } Ripping -------- Order --------- 505560 A7 B7 Employee Consumption of Intellectual Property Bureau of the Ministry of Economic Affairs Printed by Zuoshe V. Description of the invention (7 The use of a kind of soft material such as a half mold will make the rear surface = surrounding edge 12G impact or flatten the surrounding edge of the front surface when the mold is pressed. The excess eye 2 material is removed from the cavity 101 on the dividing line of the rear mold half. Alternatively, a rear mold half that is softer than the front mold half may be used, so that the peripheral edge 111 of the front surface 5 impacts on the rear edge 120. All Examples In the design, the front and rear mold halves are designed to allow rapid heat transmission, but are sufficiently rigid to withstand the prying forces that separate the mold during demolding. The mold of the present invention can be used in any method of making contact lenses. However, it is preferred to use the manufacturing method 10 as described in US Patent No. 5,54,41: In general, in the preferred method, it is preferable to place a certain amount of polymerizable ingredients in the front mold 102 by injection. On the concave surface 110. The rear mold half 103 is placed on the polymerizable component, wherein the convex shape of the rear mold half 103 is the concave surface 11 which faces the front mold half 102. Preferably, the volume of the polymerizable component collected is greater than the volume of the cavity 101. Therefore, placing the second 15 branches 103 on the first mold half 102 will cause excess material to flow into the area formed between the flanges of the mold half. The convex surface 109 is preferably more protruding than the concave surface 110: in order to determine the center position.一旦 Once the mold half 103 has been placed on the front mold half 102, it is preferable to press the mold half together with about 1 to about 5 stone forces to apply the line shown by the arrow of force = '20 to the convex One or both of edges 105 and 106. Apply force by any convenient method, including but not limited to using air pressure, mechanical devices such as springs, or a combination. In one embodiment, a flat-shaped deposition nozzle located on the flange or a combination of a conical and flat-shaped nozzle that can be partially fitted into the half 102 or 103 is used. In Kujuba (please read the note on the back? Matters before filling out this page). ---- Order --------- _9_ 505560 A7 B7 V. Description of the invention (the whole process of polymerization) The polymerizable components are preferably polymerized by exposure to ultraviolet radiation. After the polymerization is completed, the mold systems composed of the front and rear mold halves 102 and 103 are disassembled separately, and the die-casting glasses are subjected to additional processing. (Please read the precautions on the back before filling out this page) Du Yi—— Order ---------% Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -10- This paper size applies to Chinese national standards (CNS ) A4 specification (210 X 297 mm) 505560 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7_V. Description of the invention (9) Symbol description of the icon: Representative symbol: Name 13: Second interlocking surface 101: Cavity 5 102: Front mold half 103: Rear mold half 105: Uniplanar annular flange 106: Uniplanar annular flange 109: Optical quality convex surface 10 110: Optical quality concave surface 111: Front surface edge 112 : Front half mold interlocking surface 113 · · concave surface 114: inner mating surface 15 115 : Almost parallel concave surface 116: Concave contact 117: Rear die interlocking surface 118: Inner mating surface 119: Pushing the wall 20 120 outward. Back peripheral edge 121: Area 131: Approximately continuous Flat surface 132: flat surface with continuous shape 133: flat surface with continuous shape -11- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back first Fill out this page again) _§ ai-i «ϋ 1 ^^ 1 口 口 -li 1 Β-ϋ ϋ — —BBi I · 505560 A7 B7 V. Description of the invention (137:. Rear interlocking surface (please read the back first) Please note this page before filling in this page.) -------- Order --------- ^ 9— Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 This paper size applies to Chinese national standards (CNS ) A4 size (210 X 297 mm)