201202779 六、發明說明： 【發明所屬之技術領域】 本發明涉及在便攜電話和掌上終端㈣或普通鏡頭，以 及在數位相鮮巾作為光學透鏡所使用，制是能夠紐度地定 位光學透鏡以及鏡筒的光學透鏡元件和該歸透鏡成型模具及塑 膠透鏡的製造方法。 【先前技術】 近年來，伴隨著配備攝像裝置的便攜終端市場的擴大，在攝 像裝置中搭載高圖元小型的固體攝像元件變成了潮流。與該攝像 元件的小型化、高圖元化相對應，例如，如專利文獻1、2所示， 由多個透鏡構成的攝像透鏡正在逐步普及。 專利文獻1中所示的攝像透鏡，具有如下構成：具有丨片塑 膠透鏡和1片玻璃透鏡’以及裝入了這些透鏡的鏡筒，使與塑膠 透鏡和玻璃透鏡接觸的鏡片周邊區域為同一曲率或同一錐度面， 各透鏡裝入鏡框時，在使最先裝入鏡框的塑膠透鏡的接觸部和鏡 筒的承接面抵接，鏡筒和塑膠透鏡被定位的狀態下，使玻璃透鏡 與鏡筒的内周面嵌合的同時，通過將塑膠透鏡向光軸方向加壓， 用鏡筒的承接面和玻璃透鏡將塑膠透鏡夾住，通過在各透鏡的周 邊區域形成的同一曲率或相同傾斜的錐度面的嵌合，使各透鏡的 光轴重合。 另外，在專利文獻2中，提出了一種方案，該方案是裝入到 鏡筒中的透鏡全部是由塑膠透鏡構成的攝像鏡頭，用於普通的便 攜電話等的攝像鏡頭，鏡筒中裝入的透鏡全部是由容易成型加工 的塑膠透鏡構成，另外，在數位相機等中，變焦鏡頭作為主流， 鏡请内裝入的透鏡僅由玻璃透鏡構成，或者通常是如專利文獻1 4 201202779 所述的玻璃賴和歸魏敝合。在翻讀丨減專利文獻2 中示出的攝像鏡頭如圖4、圖5所示’形成為瓣透鏡的外徑略 小於鏡筒_徑的狀態，保持與鏡筒之_徑向關_插入鏡 筒以/口光軸方向按壓插入鏡筒的透鏡的狀態，將最後一段透鏡 以枯合劑m定’或者以壓碌筒的透紐邊進行固定。 以往技術文獻 寻利文獻 .....-将開平9-113783號公報 專利文獻2 :特開特開2005-338869號公報。 如專利文獻2 (專利文獻！也同樣）所示的攝像透鏡，例如 如圖4所不’使最祕人鏡筒κ的第丨塑膠透鏡ri的承接面l 與形成在鏡筒κ上的抵接面K1抵接，由於該承接面u和抵接產 r mr if第1塑膠透鏡ri相對於鏡筒K在光軸方向定 位該狀態’按順序將下一段的第2塑膠透鏡R2 (在專利文獻 鏡)……插入’通過使在各鏡頭R1，R2的邊緣軸， 成的圓錐面T相互嵌合（或者卡合），以各透 鏡、R2雙方光軸一致的狀態下使其元件化 透鏡以齡鮮固定在鏡周面上。I、插入的社 :透在之間形成細微的間隙’通過將最先== 上=rr於臟 u透細的承接* _面κ 構成，由於各塑穋透鏡R1，R2.....愈鏡筒]、先轴垂直 膠透鏡_......可以沿徑向移動，、具有相胁鏡 201202779 鏡Ri,R2……的定位精度降低的問題。 作為防止上述該各塑膠透鏡幻，幻和鏡筒κ的徑向 =造成的粒精㈣降低的方法，考慮將最先插續筒κ的塑膠 透鏡R1和鏡筒Κ在控向定位。例如，對最先插入的 與鏡筒Κ採用與各瓣透鏡仏幻相同的同心構造，，如圖$ 所不’在塑膠透鏡R1的承接面U，賴κ的抵接面κι上分卿 成圓錐狀的圓錐面T1和圓錐承接面T2，如果使這些圓錐面^和 圓錐承接面T2分別嵌合（或卡合），與各歸透鏡幻，幻的同 心構造_，可⑽顧K和_舰R1德向定位，鏡筒K 和塑膠透鏡R1形成同心狀。如上職，如果_對於鏡筒κ進 打同心狀定位的瓣透鏡幻作為基準，按順序釘—段第2塑膠 透鏡犯......重疊’使各透鏡Rl，R2......上形成的圓錐面Τ相互 嵌合，則可以將鏡筒Κ中多個塑膠透鏡幻，幻…高精度地進杆 定位。 7 然而，這種光學透鏡採用的塑膠透鏡R，通過成型模具以注 塑成型的方式而成型。關於這種塑膠透鏡成型模具的一般構造參 照圖6進行說明，塑膠透鏡成型模具是由固定模具1〇〇和可動模 具101形成，在光學透鏡中最重要的透鏡部R,是用各模具1〇〇， 101中的可自由裝卸地安裝的模具嵌塊100A，1〇1A而成型，含有 位於透鏡部r的外JH周的圓錐面Ta的塑膠透鏡R的邊緣部, 是用固定模具1〇〇，和可動模具1〇1成型。即，固定模具1〇〇，和 可動模具101在合模時兩模具100，101相碰撞，因此以高剛性的 材料形成，另一方面，模具嵌塊1〇〇A，1〇1A，透鏡部R，的透鏡面 成型的模具嵌塊1〇〇A，1〇1A的表面用鑛Ni層包覆處理後進行切 削加工’從構造上固定模具100,可動模具101和模具嵌塊100A， 6 201202779 101A以不同的部件形成，然後要將模具嵌塊1〇〇A，1〇1八相對於 固定模具100 ’可動模具101進行組裝。為了組裝，固定模具100， 可動模具101和模具嵌塊100A，i〇iA之間需要一定的間隙，由 於該間隙，在用固定模具100，可動模具1〇1形成的圓錐面丁3和 用模具嵌塊100A，101A形成的透鏡部R，之間，可能會產生因放 入模具嵌塊100A ’ 101A時的間隙而造成的徑向的偏移。即，在 圓錐面Ta和透鏡部R，的徑向上會產生被稱為偏移的成型誤差。結 果是造成與鏡筒K的圓錐承接面T2嵌合的透鏡部R，的定位精声 降低。 又 【發明内容】 、本發明針對於上述問題，其目的是提供一種可以將鏡筒和光 學透鏡光細冑精奴位，並且，可轉光輯鏡以絲度成型 的光學透鏡元件及其瓣透鏡的成麵具以及歸透鏡的製造方 法。 為達上述目的，本發明採取的技術方案如下： 立.-種光學透鏡元件，具有筒㈣鏡筒，其具有兩端側的開口 部’塑膠透鏡，其收納配置在該鏡筒内；所述塑膠透鏡，具有位 於外圓周上的邊緣部和透鏡部，形成可以在所述邊緣部上與形成 在所述鏡筒上_錐（tapef)狀_縣接面卡合的圓錐面。 。將塑膠透鏡裝人鏡筒内時，通過使形成在塑膠透鏡的邊緣部 的圓錐面细>成在鏡筒上的UJ錐承接面卡合，使鏡筒和塑膠透鏡 以同心狀的方式精確定位。 在所述鏡筒内收納配置多個塑膠透鏡，在這些塑膠透鏡各自 重合的面分別形成可以互相卡合的圓錐面。 使在最先插入鏡筒的塑膠透鏡的邊緣部上形成的圓錐面與在 201202779 鏡筒上形成的圓錐承接面嵌合，鏡筒和瓣透鏡在關心狀定位 的狀態’依次插人下-段的轉透鏡，通過使各娜透鏡的重合 面上形成的各®錐面卡合’以相對於鏡筒定位後的塑膠透鏡作為 基準，可以使收納在鏡筒中的所有塑膠透鏡的光軸成為一致。 所述光學透鏡元件，具有兩端側的開口部_狀的鏡筒收 納配置在該鏡制的娜透鏡；所述歸透鏡，具有位於外圓周 上的邊緣部和魏部’輯述邊緣部的外關面作為齡狀的圓 錐面’以使所述鋪的_周面與所述嶋面以線觸狀態抵接 的垂直面。 在向鏡筒内裝入塑膠透鏡時，塑膠透鏡的邊緣部外圓周的圓 錐面以線翻狀_接進鏡筒_直_關面，使鏡筒和娜 透鏡以同心狀的方式精確定位。 -種塑膠透鏡成麵具’是紅賴瓣魏細的成型模 具，具有固定模具，設置為相對於該固定模具可開合的可動模具， 以及模具嵌塊’在所述固定模具和可動模具上可自由裝卸地安 裳，、將所述透鏡部和從該透鏡料接的親圓錐_所述模具嵌 塊成型’並且’除所述圓錐科，娜透鏡的邊緣剌所述固定 模具和所述可動模具成型。 由於塑膠透綱透鏡部和獅面是賴具嵌塊—體成型，不 ^由於模具嵌塊和可動模具以及固定模具之朗間隙造成透鏡部 圓錐面之間產生偏移，可以始終將透鏡部和圓錐面的尺寸精度 高精度’其結果是，可以將鏡筒的光軸和塑膠透鏡的光袖 以鬲精度保持一致。 所述瓣透鏡成雜具，具有固賴具；可軸具，立設置 為相對於顧賴具可開合；以及模具嵌塊，其麵述蚊模具 8 201202779 和可動難上可裝卸地钱，_所频減塊軸所述 和所述圓錐面。 由於塑膠透鏡的透鏡部和UJ錐面是賴具嵌塊—體成型，不 會由於模具嵌塊和可動模具以及固定模具之_間隙造成透 和圓誠之間產生偏移，可以始終將透鏡部和圓錐面的尺寸精度 保f為〶精度’其結果是，可㈣鏡筒的光姉瓣透鏡的光轴 以咼精度保持一致。 -種塑膠透鏡的製造方法’制上述的塑膠透鏡成型模具， 向由所述HI定模具何賴具域具練賴朗雜内填細 脂，將所述塑膠透鏡注塑成型。 、 依據上述_透_製造方法，可减成本且大如也製造始 終高精度地健透鏡部和__尺寸精度的轉透鏡，可 低塑膠透鏡的製造成本。 由於採用了上述技術，與财技術相比，根據本發明，通過 將塑膠透鏡的透鏡部和15錐面用成型模具的模具嵌塊成型，可以 始終高精度地鋪透鑛和圓錐_尺梢度，在向鏡筒裝入塑 膠透鏡時，通過使歸透__面和鏡觸_承接面嵌合， 能以鏡筒和塑膠透鏡以同心狀的方式精確地定位。 另外’使最先插入鏡筒的塑膠透鏡的圓錐面與鏡筒的圓錐承 接面嵌合，將最先插人的娜透鏡姆於鏡筒進行定位，以 態’將該塑膠透鏡作絲準，依讀人下—段崎鏡，通過使這 些塑膠透鏡各自的重合面上形成的齡面分別卡合可以使收納 在鏡筒中的所有塑膠透鏡的光軸成為一致。 以下結合附圖及實施方式進一步說明本發明。 【實施方式】 201202779 下面結合附圖1進一步說明發明的具體實施方式： 圖1示出了本發明實施方式1的塑膠透鏡成型模具的剖面 圖’圖1示出的實施方式1，省略了圖4、圖6示出的與以往例子 重複的部分，只對不同部分進了標號說明。 實施方式1 圖1中，塑膠透鏡1，由透鏡部2，以及從該透鏡部2的周邊 部分向外周方向延伸的邊緣部3組成。在圖1中，邊緣部3的下 方以及上方分別形成了圓錐狀的圓錐面4和5。該邊緣部3中形成 的圓錐面4、5 ’與圖5所示的改進方案相同，通過與下方的圓錐 面4以及鏡筒K裡形成的圓錐接承接面T2的嵌合，使鏡筒κ與 塑膠透鏡1同心，並且通過上方的圓錐面5與第2塑膠透鏡R2的 圓錐面Τ嵌合，能夠達到鏡筒的光軸與各個鏡頭丨，幻的光軸高 精度的一致。 上述塑膠透鏡1的成型模具20是由固定模具21、可動模具 22、以及安裝在該固定模具21與可動模具22的上下一對的模具 嵌塊23、24組成。固定模具21和可動模具22，沿塑膠透鏡i的 光軸方向上下移動，進行開合操作，該固定模具21與可動模具22 進行合模，向由該固定模具21和可動模具22，以及安裝在各模具 21 22的模具嵌塊23、24所圍成的空腔裡填充熔融樹脂，將塑膠 透鏡1注塑成型。此外，塑膠透鏡】的透鏡部2與圓錐面4、5是 通過上述模具嵌塊23、24成型，除此以外，即，瓣透鏡！的邊 緣部3是通過固定模具21與可動模具22成型的。 即’本發明涉及賴膠透鏡丨的成賴具2()巾，決定塑膠透 鏡1的光學性能的透鏡部2與歸透鏡丨_錐面4、5是由安裝 在固定模具21與可動模具22的模具錄23、24形成，與以往的 201202779 技術不同’不會因與固定模具2卜可動模具η以及模具嵌塊23、 24間的間隙，導致8]錐面4、5和透鏡部2在徑向上產生稱為偏移 的成型誤差，因此，能提高圓錐面4、5與透鏡部2的位置精度。 此外，由於固定模具21、可動模具22以及模具嵌塊23、24之間 的間隙，邊緣部3的外徑和圓錐面4、5以及透鏡部2可能會產生 徑向上的偏移’但是如圖4所示，在鏡筒〖裡插入多個塑膠透鏡， 把形成在各個塑膠透鏡上的圓錐面進行嵌合，並且對多個塑膠透 鏡進行光軸合併的情況下，由於各個塑膠透鏡與鏡筒κ之間的徑 向間隙是設定好的，因此即使邊緣部3的外徑與圓錐面4、5以及 透鏡部2產生徑向的偏移’瓣透鏡丨的光軸方向的精度也不合 受到任何影響。另外，模具嵌塊23、24能在固定模具21以及二 動模具22上自由裝却’成型後，即使通過模具嵌塊23、24成型 的透鏡部2的收縮率未符合設計值的情況下，由於模具嵌塊23、 24的形狀的改變比較容易，因此對成型後的透鏡部2的表面形狀 進行修改、加工或者對圓錐面的直徑進行修改、加工也比較容易， 從而使其接近設計值。 對於上述構成的本實施方式，透鏡部2和與該透鏡部2連接 的圓錐面4、5通過模具嵌塊23、24成型，從而能使透鏡部2與 圓錐面4、5成為同心狀態並高精度地―致。如上述，通過確保圓 錐面4、5的成型精度’鏡筒κ裡裝人歸透鏡丨時，形成在塑膠 透鏡1下方的圓錐面4嵌合到鏡筒Κ的圓錐承接面Τ2(參照圖5)= 從而使鏡筒Κ與塑膠透鏡1能以同心狀精確地定位。另外，以設 置在鏡筒Κ的塑膠透鏡丨作為基準，通過依次把下一段的塑膠^ 鏡的圓錐面嵌合到該塑膠透鏡1的圓錐面5，鏡筒κ裡裝入多個 塑膠透鏡1……時，能在統一各透鏡間的光軸的狀態下，進行元件 11 201202779 化，收納配置到鏡筒κ十。 此外’形成塑膠透鏡！的透鏡部2與圓錐面4、5的模 23、24，能在固賴具21與可動模具22上自由裝卸，在變更模 具欲塊23、24的非球面形狀時，能夠容易進行補修加工，從而使 透鏡部2的表面形狀更接近設計值。 實施方式2 、圖2及圖3是本發明的實施方式2，在本實施方式中，代替在 所述實施方式1巾在邊緣部3的下方形成的υ錐面5，在邊緣部3 的外圓周面上形成圓錐面15之外，是與所述實施方式丨共同的東 西’在與所述實施方式丨制的部分上標注共_瓶，省略重 複部分的說明，僅說明不同的部分。 在^施方式2中’在邊緣部3的外圓周面上形成的圓錐面15, 形成沿著從上方到下方向接近光軸s的方向傾斜的圓錐狀。另外， 收納塑膠透鏡1的鏡筒κ，如所述實施方式i關錐承接面12被 省略’垂直的内圓周面被形成，在向鏡筒κ中裝入塑膠透鏡1時， 使在垂直的鏡筒K的_周面上在塑膠透鏡i的邊緣部3的外圓 周面上形成的圓錐面15以線接觸狀態卡合，與鏡筒κ塑膠透鏡工 同心。 圖3是實施方式2中塑膠透鏡丨的成型模具2〇，與所述實施 方式1相同，是由固定模具21、可動模具22、以及安裝在該固定 模具21與可動模具22上的上下一對的模具嵌塊23、24組成，塑 膠透鏡1的透鏡部2和位於邊緣部3的外周圓面上的圓錐面15以 及塑膠透鏡1的上方的圓錐面5通過模具嵌塊23、24成型。 如上所示，在構成的本實施方式中，與所述實施方式丨相同， 通過透鏡部2和與該透鏡部2連接的圓錐面5、在邊緣部3的外圓 12 201202779 隹面-15利用模具嵌塊23、24成型，能使透鏡部2 娜靜1主為同心狀態並高精度地一致，在鏡裡裝入 左娜m Μ圖 使在垂直的鏡筒κ的_周面上 i緣部3的外圓周面上形成的圓錐面15以線接觸 :、鏡筒κ和塑膠透鏡1以同心狀精確定位。另外，在 二個塑膠透鏡1時，以最初設置在鏡筒κ裡的塑膠 Γ準，通過依次把下一段的塑膠透鏡的圓錐面嵌合到 的^能ϊ 1 面5裡，能在使多個塑膠透鏡1的光軸統一 :下’進仃疋件化，收納配置到鏡筒κ中。進而，在實施方 為不需要形成像實施方式1中鏡筒Κ_Ι®周面與塑 /透光1 _錐面4卡合的圓錐承接φ Τ2，所 工也變得容易。 ㈣i加 二=，適當選擇裝入鏡筒内的不】 成1先予透鏡的成型模具的模具構造也不限於上述實施方 i<1以適當進行選擇。另外’在上述實施方式1+，使歸透 鏡筒κ的圓錐承接面τ2以成為同斜度的圓“ π式成型’讀了在鏡筒κ中裝人瓣透鏡丨時，使 Τ2㈣細狀驗合，將歸魏1在健κ中進 是Γ以使圓錐面4和圓錐承接面Τ2為各2 方^ί 方面，也可以例如使_承接面T2與對 =的圓錐面4以線接觸狀態卡合從而將塑膠透鏡i在鏡筒&内定 13 201202779 【圖式簡單說明】 圖1是本實施方式1的塑膠透鏡用成型模具的剖面圖 圖2是實施方式2光學透鏡的剖面圖； 圖3是實施方式2塑膠透鏡用成型模具的剖面圖； 圖4是現有的光學透鏡的剖面圖； 圖5是鏡筒和塑膠透鏡的定位構造的改良構造的立| 圖6是現有的塑膠透鏡用成型模具的剖面^、剖面 【主要元件符號說明】 ° ° 1塑膠透鏡 2透鏡部 3邊緣部 4、5、15圓錐面 20成型模具 21固定模具 22可動模具 23、24模具嵌塊 K鏡筒 T2圓錐承接面201202779 VI. Description of the Invention: [Technical Field] The present invention relates to a mobile phone and a palmtop terminal (four) or a common lens, and a digital phase fresh towel as an optical lens, which is capable of positioning an optical lens and a mirror An optical lens element of a cartridge and a method of manufacturing the return lens forming mold and the plastic lens. [Prior Art] In recent years, with the expansion of the portable terminal market equipped with an image pickup device, it has become a trend to mount a solid image sensor having a small picture size in the image pickup device. In accordance with the miniaturization and high image formation of the image pickup device, for example, as disclosed in Patent Documents 1 and 2, an image pickup lens composed of a plurality of lenses is gradually spreading. The image pickup lens shown in Patent Document 1 has a configuration in which a plastic lens having a cymbal and a glass lens and a lens barrel in which the lenses are incorporated are provided so that the peripheral region of the lens in contact with the plastic lens and the glass lens has the same curvature. Or the same taper surface, when the lens is placed in the frame, the glass lens and the mirror are made in a state where the contact portion of the plastic lens first loaded into the frame and the receiving surface of the lens barrel are abutted, and the lens barrel and the plastic lens are positioned. When the inner peripheral surface of the cylinder is fitted, the plastic lens is pressed in the direction of the optical axis, and the plastic lens is sandwiched by the receiving surface of the lens barrel and the glass lens, and the same curvature or the same inclination is formed in the peripheral region of each lens. The fitting of the tapered faces makes the optical axes of the lenses coincide. Further, in Patent Document 2, a proposal has been made in which a lens incorporated in a lens barrel is an image pickup lens composed of a plastic lens, and is used for an image pickup lens of an ordinary portable telephone or the like, and a lens incorporated in the lens barrel. All of them are made of a plastic lens which is easy to be molded, and in a digital camera or the like, a zoom lens is used as a main stream, and a lens incorporated in a mirror is composed only of a glass lens, or is generally a glass as described in Patent Document 1 4 201202779. Lai and Wei Wei. As shown in FIGS. 4 and 5, the image pickup lens shown in the above-mentioned patent document 2 is formed such that the outer diameter of the valve lens is slightly smaller than the state of the lens barrel, and is kept close to the radial direction of the lens barrel. The lens barrel is pressed in the state of the lens inserted into the lens barrel in the direction of the optical axis, and the last lens is fixed with the dry agent m or fixed by the through-edge of the press barrel. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。. For example, as shown in FIG. 4, the imaging lens shown in Patent Document 2 (Patent Literature!) also causes the receiving surface 1 of the second plastic lens ri of the most delicate lens barrel κ to be formed on the lens barrel κ. The contact surface K1 abuts, because the receiving surface u and the abutting r mr if the first plastic lens ri is positioned in the optical axis direction with respect to the lens barrel K, the second plastic lens R2 of the next segment is sequentially placed (in the patent) Document mirror] Insertion 'The conical surface T of each lens R1, R2 is fitted (or engaged) with each other, and the elemental lens is made with the optical axes of the lenses and R2 in the same direction. The fresh age is fixed on the mirror surface. I, the inserted company: through the formation of a fine gap between the 'by the first == upper = rr in the dirty u through the acceptance of * _ face κ, due to the plastic lens R1, R2..... The more the lens tube, the first axis vertical rubber lens _... can move in the radial direction, and the positioning accuracy of the mirrors 201202779 mirror Ri, R2, ... is reduced. As a method of preventing the above-mentioned plastic lens illusion, illusion and radial direction of the lens barrel κ from being reduced by the fine grain (4), it is considered that the plastic lens R1 and the lens barrel of the first insertion cylinder κ are positioned in the steering direction. For example, the first concentric structure with the lens barrel 仏 is the same as that of the lenticular lens, as shown in Fig. $ is not on the receiving surface U of the plastic lens R1, and the κ κ abutting surface κι The conical conical surface T1 and the conical receiving surface T2, if these conical surfaces and the conical receiving surface T2 are respectively fitted (or engaged), and the concentric structures of the respective lenses are illusory, imaginary concentric structure _, can be (10) Gu K and _ The ship R1 is positioned in a direction, and the lens barrel K and the plastic lens R1 form a concentric shape. As above, if the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The conical faces formed on the top are fitted to each other, so that a plurality of plastic lenses in the lens barrel can be illusory, and the rods can be positioned with high precision. 7 However, the plastic lens R of this optical lens is molded by injection molding by means of a molding die. The general structure of such a plastic lens molding die will be described with reference to Fig. 6. The plastic lens molding die is formed by a fixed die 1 and a movable die 101. The most important lens portion R in the optical lens is a die 1 . 〇, 101, detachably mounted mold insert 100A, 1〇1A, and the edge portion of the plastic lens R including the conical surface Ta of the outer JH circumference of the lens portion r, is a fixed mold 1 , and the movable mold 1〇1 molding. That is, the mold 1 is fixed, and the movable mold 101 collides with the two molds 100, 101 at the time of mold clamping, and thus is formed of a material having high rigidity. On the other hand, the mold insert 1A, 1〇1A, and the lens portion R, the surface of the mold-molded mold insert 1〇〇A, 1〇1A is covered with a mineral Ni layer and then subjected to cutting processing. 'The structure is fixed to the mold 100, the movable mold 101 and the mold insert 100A, 6 201202779 The 101A is formed of different parts, and then the mold inserts 1A, 1〇18 are assembled with respect to the fixed mold 100' movable mold 101. For assembly, a fixed gap is required between the fixed mold 100, the movable mold 101 and the mold inserts 100A, i〇iA, and the conical surface 3 and the mold formed by the movable mold 1〇1 by the fixed mold 100 due to the gap Between the lens portions R formed by the inserts 100A, 101A, a radial offset due to a gap when the mold inserts 100A' 101A are placed may occur. That is, a molding error called offset is generated in the radial direction of the conical surface Ta and the lens portion R. As a result, the positioning of the lens portion R which is fitted to the conical receiving surface T2 of the lens barrel K is lowered. Further, the present invention is directed to the above problems, and an object of the present invention is to provide an optical lens element and a flap thereof which can be formed by thinning a lens barrel and an optical lens, and which can be formed by a light-transfer mirror. The masking of the lens and the method of manufacturing the lens. In order to achieve the above object, the technical solution adopted by the present invention is as follows: a magnetic lens element having a barrel (four) lens barrel having an opening portion 'plastic lens on both end sides, the housing being disposed therein; The plastic lens has an edge portion on the outer circumference and a lens portion, and forms a conical surface on the edge portion that is engaged with a tape-shaped joint surface formed on the lens barrel. . When the plastic lens is mounted in the lens barrel, the lens barrel and the plastic lens are precisely concentrically formed by engaging the UJ cone receiving surface formed on the edge of the plastic lens with a conical surface formed on the edge of the plastic lens. Positioning. A plurality of plastic lenses are housed in the lens barrel, and conical surfaces that can be engaged with each other are formed on the surfaces of the plastic lenses that overlap each other. The conical surface formed on the edge portion of the plastic lens inserted first into the lens barrel is fitted to the conical receiving surface formed on the 201202779 lens barrel, and the lens barrel and the lenticular lens are sequentially inserted in the state of the care-like positioning. The rotation lens of the lens can be made to match the optical axes of all the plastic lenses accommodated in the lens barrel by using the respective plastic cones formed on the overlapping surfaces of the respective lenses as the reference with respect to the plastic lens positioned with respect to the lens barrel. . The optical lens element has a lens barrel having an opening portion on both end sides and is housed in the mirrored nano lens; the return lens has an edge portion on the outer circumference and a portion of the edge portion of the Wei The outer closing surface serves as an indulgent conical surface 'in a vertical plane in which the paving-peripheral surface abuts the kneading surface in a line contact state. When the plastic lens is loaded into the lens barrel, the rounded surface of the outer circumference of the edge portion of the plastic lens is turned in a line-like manner, and the lens barrel and the nano lens are accurately positioned in a concentric manner. - a plastic lens into a mask' is a molding die of a red ray, having a fixed mold, a movable mold set to be openable and closable relative to the fixed mold, and a mold insert 'on the fixed mold and the movable mold Freely attaching and detaching, forming the lens portion and the pro-cone from the lens into the mold insert and forming, in addition to the conical section, the edge of the nano lens, the fixed mold and the Movable mold forming. Since the plastic lens portion and the lion face are formed by the insert block body, the lens portion and the lens portion may be always offset due to the gap between the mold insert and the movable mold and the fixed mold. The dimensional accuracy of the conical surface is highly accurate. As a result, the optical axis of the lens barrel and the optical sleeve of the plastic lens can be aligned with the 鬲 precision. The lobed lens is a hybrid tool, and has a solid locating device; the shaft can be set up to be openable and detachable with respect to the reliance; and the mold insert is embossed, and the surface of the mosquito mold 8 201202779 is movable and difficult to handle. The frequency is reduced by the block axis and the conical surface. Since the lens portion and the UJ taper surface of the plastic lens are molded by the insert, the lens portion and the lens portion can be always offset due to the gap between the mold insert and the movable mold and the fixed mold. The dimensional accuracy of the conical surface is guaranteed to be 〒 precision. As a result, the optical axis of the pupil lens of the (four) lens barrel can be kept uniform with the 咼 precision. - A method for producing a plastic lens. The plastic lens molding die described above is formed by injection molding a plastic lens into the plastic lens by the HI fixing die. According to the above-described _transparent_manufacturing method, it is possible to reduce the cost and manufacture a rotating lens having a high precision lens portion and a __ dimensional accuracy at the same time, which can reduce the manufacturing cost of the plastic lens. By adopting the above technique, according to the present invention, by molding the lens portion of the plastic lens and the 15 tapered surface into the mold of the molding die, it is possible to uniformly permeate the ore and the cone tip with high precision. When the plastic lens is loaded into the lens barrel, the lens can be precisely positioned in a concentric manner by the lens barrel and the plastic lens by fitting the __ surface and the lens contact surface. In addition, the conical surface of the plastic lens inserted into the lens barrel is fitted into the conical receiving surface of the lens barrel, and the first inserted lens is positioned in the lens barrel, and the plastic lens is aligned. According to the reading of the person-segmented mirror, the optical axes of all the plastic lenses accommodated in the lens barrel can be made uniform by engaging the age faces formed on the overlapping surfaces of the plastic lenses. The invention will be further described below in conjunction with the drawings and embodiments. [Embodiment] 201202779 A specific embodiment of the invention will be further described below with reference to Fig. 1. Fig. 1 is a cross-sectional view showing a plastic lens molding die according to Embodiment 1 of the present invention, which is shown in Fig. 1, and Fig. 4 is omitted. In the part shown in FIG. 6 which is repeated with the prior art, only the different parts are denoted by reference numerals. Embodiment 1 In Fig. 1, a plastic lens 1 is composed of a lens portion 2 and an edge portion 3 extending from a peripheral portion of the lens portion 2 in a circumferential direction. In Fig. 1, conical conical surfaces 4 and 5 are formed below and above the edge portion 3, respectively. The conical surfaces 4, 5' formed in the edge portion 3 are the same as the modification shown in Fig. 5, and the lens barrel κ is fitted by the conical surface 4 formed in the lower conical surface 4 and the lens barrel K. Concentric with the plastic lens 1, and the conical surface of the second plastic lens R2 is fitted by the upper conical surface 5, the optical axis of the lens barrel and the respective lens ridges can be accurately aligned with each other. The molding die 20 of the above-described plastic lens 1 is composed of a fixed mold 21, a movable mold 22, and a pair of upper and lower mold inserts 23, 24 attached to the fixed mold 21 and the movable mold 22. The fixed mold 21 and the movable mold 22 are moved up and down along the optical axis direction of the plastic lens i to perform an opening and closing operation, and the fixed mold 21 is clamped with the movable mold 22, and is attached to the fixed mold 21 and the movable mold 22, and mounted thereon. The cavity surrounded by the mold inserts 23 and 24 of each of the molds 21 22 is filled with a molten resin, and the plastic lens 1 is injection molded. Further, the lens portion 2 and the conical surfaces 4, 5 of the plastic lens are molded by the above-described mold inserts 23, 24, that is, the valve lens! The edge portion 3 is formed by the fixed mold 21 and the movable mold 22. That is, the present invention relates to a draping lens 2 () towel, and the lens portion 2 and the return lens 丨 cone surface 4, 5 which determine the optical performance of the plastic lens 1 are mounted on the fixed mold 21 and the movable mold 22 The molds 23 and 24 are formed, which is different from the previous 201202779 technology. 'The gap between the movable mold η and the mold inserts 23 and 24 is not caused by the fixed mold 2, and the 8] tapered surfaces 4, 5 and the lens portion 2 are A molding error called offset is generated in the radial direction, and therefore, the positional accuracy of the conical surfaces 4, 5 and the lens portion 2 can be improved. Further, due to the gap between the fixed mold 21, the movable mold 22, and the mold inserts 23, 24, the outer diameter of the edge portion 3 and the conical surfaces 4, 5 and the lens portion 2 may be displaced in the radial direction 'but as shown in the figure 4, inserting a plurality of plastic lenses in the lens barrel, fitting the conical surfaces formed on the respective plastic lenses, and combining the optical axes of the plurality of plastic lenses, due to the respective plastic lenses and the lens barrel The radial gap between κ is set, so that even if the outer diameter of the edge portion 3 and the conical surfaces 4, 5 and the lens portion 2 are radially offset, the accuracy of the optical axis direction of the lobed lens 也不 is not affected by any influences. In addition, the mold inserts 23, 24 can be freely mounted on the fixed mold 21 and the two movable molds 22, even after the molding unit is molded, even if the shrinkage ratio of the lens portion 2 formed by the mold inserts 23, 24 does not conform to the design value, Since the shape of the mold inserts 23, 24 is relatively easy to change, it is relatively easy to modify or process the surface shape of the molded lens portion 2 or to modify the diameter of the conical surface to make it close to the design value. In the present embodiment having the above configuration, the lens portion 2 and the conical surfaces 4 and 5 connected to the lens portion 2 are molded by the mold inserts 23 and 24, whereby the lens portion 2 and the conical surfaces 4 and 5 can be concentric and high. Accurately. As described above, by ensuring the molding accuracy of the conical surfaces 4 and 5, when the lens barrel κ is loaded with the lens 丨, the conical surface 4 formed under the plastic lens 1 is fitted to the conical receiving surface Τ 2 of the lens barrel ( (refer to FIG. 5). ) = so that the lens barrel and the plastic lens 1 can be accurately positioned concentrically. Further, by using the plastic lens 设置 provided on the lens barrel 丨 as a reference, the conical surface of the plastic lens of the next stage is sequentially fitted to the conical surface 5 of the plastic lens 1, and a plurality of plastic lenses 1 are loaded into the lens barrel κ. When the optical axis between the lenses is unified, the component 11 201202779 can be placed and stored in the lens barrel κ10. In addition, 'form a plastic lens! The lens portion 2 and the molds 23 and 24 of the conical surfaces 4 and 5 can be detachably attached to and detached from the fixed mold 21 and the movable mold 22. When the aspherical shape of the mold blocks 23 and 24 is changed, the repair processing can be easily performed. Thereby, the surface shape of the lens portion 2 is brought closer to the design value. Embodiment 2, FIG. 2 and FIG. 3 show Embodiment 2 of the present invention. In the present embodiment, instead of the tapered surface 5 formed below the edge portion 3 in the first embodiment, the edge portion 3 is outside. In addition to the formation of the conical surface 15 on the circumferential surface, what is common to the above-described embodiment ' is denoted by a part of the same as that of the above-described embodiment, and the description of the overlapping portion will be omitted, and only the different portions will be described. In the second embodiment, the conical surface 15 formed on the outer circumferential surface of the edge portion 3 is formed in a conical shape which is inclined in a direction approaching the optical axis s from the upper side to the lower side. Further, the lens barrel κ accommodating the plastic lens 1 is formed by omitting the 'inner inner circumferential surface' as in the embodiment i, and when the plastic lens 1 is loaded into the lens barrel κ, it is made vertical. The conical surface 15 formed on the outer circumferential surface of the edge portion 3 of the plastic lens i on the circumferential surface of the lens barrel K is engaged in a line contact state, and is concentric with the lens barrel κ plastic lens. Fig. 3 is a molding die 2 of a plastic lens cartridge according to a second embodiment, which is the same as the first embodiment, and is composed of a fixed mold 21, a movable mold 22, and a pair of upper and lower sides attached to the fixed mold 21 and the movable mold 22. The mold inserts 23 and 24 are formed, and the lens portion 2 of the plastic lens 1 and the conical surface 15 on the outer circumferential surface of the edge portion 3 and the conical surface 5 above the plastic lens 1 are molded by the mold inserts 23, 24. As described above, in the present embodiment, as in the above-described embodiment, the lens portion 2 and the conical surface 5 connected to the lens portion 2 and the outer circumference 12 of the edge portion 3 201202779 are used. The mold inserts 23 and 24 are formed so that the lens portion 2 can be in a concentric state with high precision, and the left-hand m is placed in the mirror so that the edge of the vertical lens barrel κ The conical surface 15 formed on the outer circumferential surface of the portion 3 is in line contact: the lens barrel κ and the plastic lens 1 are accurately positioned concentrically. In addition, in the case of the two plastic lenses 1, the plastics that are initially placed in the lens barrel κ can be used to sequentially fit the conical surface of the plastic lens of the next stage into the surface 5 of the plastic lens. The optical axes of the plastic lenses 1 are unified: the lower one is made into a piece, and the storage is arranged in the lens barrel κ. Further, in order to prevent the formation of the conical receiving φ Τ 2 which is engaged with the circumferential surface of the lens barrel Κ_Ι® and the plastic/transparent 1 _ cone surface 4 in the first embodiment, it is also easy to perform. (4) i plus 2 =, the mold structure of the molding die which is inserted into the lens barrel is not properly selected. The molding die of the lens is not limited to the above-described embodiment i<1, and is appropriately selected. Further, in the above-described first embodiment, the conical receiving surface τ2 of the return lens barrel κ is read by a circle of the same inclination as the "π-type molding". When the lens lens 丨 is mounted in the lens barrel κ, the Τ 2 (four) fine inspection is performed. In the meantime, the Wei 1 is in the middle of the health Γ so that the conical surface 4 and the conical surface Τ 2 are in two ways. For example, the _ receiving surface T2 and the conical surface 4 of the pair are in line contact state. Fig. 1 is a cross-sectional view of a molding die for a plastic lens according to the first embodiment, and Fig. 2 is a cross-sectional view of the optical lens of the second embodiment; Fig. 2 is a cross-sectional view of the optical lens of the second embodiment; 3 is a cross-sectional view of a molding die for a plastic lens according to Embodiment 2; FIG. 4 is a cross-sectional view of a conventional optical lens; and FIG. 5 is a perspective view of an improved structure of a positioning structure of a lens barrel and a plastic lens. FIG. 6 is a conventional plastic lens. Section of the forming mold ^, section [Description of main components] ° ° 1 plastic lens 2 lens portion 3 edge portion 4, 5, 15 conical surface 20 molding die 21 fixed mold 22 movable mold 23, 24 mold insert K lens tube T2 Cone bearing surface