M343166 【新型所屬之技術領域】 本創作係有關一種方形光學玻璃鏡片，尤指一種具有 精密的光學面及直角方形肩部且低成本之方形光學玻璃鏡 片，供使用於手機相機、及使用CCD ( charge coupled device，電荷麵合裝置）或CMOS (co即lementary metal-oxide- semiconductor，互補型金單體屬氧化物半 導體）等感測元件的相機。 【先前技術】 隨著科技的進步，電子產品不斷地朝向輕薄短小以 及多功能的方向發展，而電子產品中，如數位相機 (digital still camera)、電腦相機（PC camera)、網路 相機（network camera)、行動電話或個人數位輔助器 (PDA)等裝置都有加上取像裝置的需求；而為了攜帶方便 及符合人性化的需求，取像裝置不僅需要具有良好的成像 品質’同時也需要有較小的體積與較低的製作成本，始能 有效提昇該取像裝置之應用性。 精密玻璃模造成形（glass precision molding ) 技術已大量應用於製造高解析度、穩定性佳且成本較低廉 的非球面模造玻璃鏡片，如美國專利US2006/0107695、 US2007/0043463，台灣專利 TW095101830、 TW095133807，日本專利JP63-295448等，其係利用玻璃 在高溫軟化的特性，將一玻璃預型體（glass pref〇rm)於 成形模具之上、下模仁中加熱軟化，再將上、下模仁對應 閉合並施壓，使上、下模仁之光學模穴面轉印至軟化的玻 璃預型體，經冷卻後分開上、下模仁取出而成為一具有 3 M343166 上、下模仁之模穴面形狀的模造玻璃鏡片。 又為能降低製造成本，美國專利US7,312,933揭露利 '用裁切成的方形玻璃元材，以模造方式製成方形單體鏡片 ^ la如圖1所示，使該方形單體鏡片可簡易的組裝於鏡頭組 中；日本專利JP63-304201、美國專利US2005/041215提出玻 璃模造成形的鏡片陣列（lens array);對於製成單一鏡 片，日本專利JP02-044033揭露使用移動之破璃材料並以多 次模造方式製成具有多個光學鏡片lb的鏡片毛胚2a如圖2 φ 所示，其可進一步裁切成單一鏡片lb ;又美國專利 US2004/165095揭露紅外線過濾片（infrared ray mter)i 多模穴模造（multi-cavity glass molding)，使介電層 (dielectric layer)可壓製於一平一凸的鏡片上，再裁切成 單一的紅外線過濾片。 雖然在玻璃模造技術上，可利用一成形模具設有多個 模穴，以一次模造成形再經裁切而製成多個鏡片，藉以可 降低製造成本。然而，多個模穴的製造方式，仍只受限於 φ 使用於球面鏡片或平凸、平凹形的鏡片。由於小型相機或 • 手機相機鏡片設計上必須使用非球面玻璃鏡片，然而使甩 多個模穴一次模造成形，則有空氣無法順利排出的困難， 此降低了非球面玻璃鏡片的精密度。 在習知技術有下列方法，嘗試去解決殘留空氣的問 題，如日本專利 jP2〇〇2-003225、jp〇5-286730、 JP06-191861，美國專利US2005/0172671，歐洲專利 EP0648712等，使用控制壓力、溫度或表面粗糙度的方 法，以控制操作條件嘗試以解決殘存空氣的問題；或如曰 4 M343166 本專利 JP61 -291424、JP2000-044260，台灣專利 TWI248919、TW200640807，美國專利US2005/0242454 等，於模造設備中設有空氣通道以排出空氣；或如日本專 利 JP61-291424、JP08-337428，美國專利 US7，159,420 等，在模具上尤其下模仁設有凹槽或通氣孔等以排出空 氣，然而但該等凹槽或通氣孔可能會在成形後的鏡片上形 成相對之凸體（如凸點或凸條），造成二次加工或後續組 裝困難之問題。 對於單一模穴，排氣效果一般係以排氣效率表示，排 氣效率d等於可排氣通道之截面積除以模穴體積（5 =可 排氣通道之截面積/模穴體積）；當排氣效率ά愈大，表 示空氣在模造過程中可以快速逃逸而不會積存在模穴中， 反之排氣效率5低，表示排氣容易阻塞；為能順利排氣， 占值應高於0.25以上為宜。而對於多個模穴，尤其接近模 仁中心之模穴，其排氣更不容易，經由長期的實驗結果， 對於方形玻璃元材，其靠近模仁邊緣之模穴其^值應高於 125以上、接近模仁中心之模穴其$值則隨該模穴距離成 形模具外緣（模仁邊緣）之距離增加而以等比級數增加。 而在模造設備中設置排氣通道之習知技術中，若其通道截 面積夠大則可接近較佳的5值，但此時將有大量的熔融玻 壤會滲入通道而形成邊裙，致成形後須要二次加工以切除 °亥邊裙；而在下模仁預設數個凹槽形成通氣通道之習知技 術中，其雖可避免玻璃材料壓住空氣通道而阻礙排氣，但 在成形鏡片上相對會形成數個凸體，將造成鏡片組裝的困 難，且若下模仁凹槽截面淺小，其3值過低也欠缺排氣效 5 JV1343166 果；當下模仁設有凹槽的方法應用於多模穴模造，由於位 • 於多模穴中心之模穴其空氣通道過長，排氣效果不佳。因 ， 此，利用精密模造玻璃成形技術以製作多模穴的光學玻璃 : 鏡片時，其成形模具在設計上應使排氣效率5趨向於較大 的數值1不會在鏡片上形成凸出物以避免需要二次加工 磨平或影響鏡片的組裝，才能符合量產化之良率與產 需求。 【新型内容】 • y本創作纟要目的在於提供一種方形光學玻璃鏡片，其 係利用转玻璃元材置入一多模穴成形模具之上、下模 仁中而加溫加壓模造成一具有複數鏡片之鏡片毛胚，再由 該，片毛胚裁切出方形光學玻璃鏡片，其包含一第一光學 面。又於鏡片之一面上、一第二光學面設於鏡片之第一光學 面之相對面上、及一直角方形肩部設於光學面之外圍，其 中該第:、二光學面係方形光學玻璃鏡片之光學作用區， 該肩邰係方形光學玻璃鏡片之非光學作用區，並形成一四 • 角蜱為直角之方形，而該肩部之直角及方型係由 鏡片毛胚 所裁切形成，藉以簡化方形光學玻璃鏡片之製程，並使該 方形鏡片可方便組裝在鏡頭組上。 本創作再一目的在於提供一個方形光學玻璃鏡片，其 中：四角，為直角之方形肩部上可進一步形成由於模具上 所設之排，通道致相對成形之凹槽，該等凹槽係由成形模 具上所λ複數個凸體所造成，於模造製程中可藉由該等凸 ，與方形玻璃7C材之間因高度落差所形成的空隙以作為排 氣通道以使成形模具上邊緣模穴之排氣效率6 ^ 〇· 25 ’ 6 M343166 中心模穴之排氣致率d ^ 内空氣有效排出，以避^’使在模造過程中可將模穴 璃鏡片之精密度。 空氣殘留在模穴内而降低方形玻 【實施方式】 以下結合附圖，辦 優點作更詳細的說明·、 乍上述的和另外的技術特徵和 〈第一實施例〉 。本實施例係一凸凹 圖3、4所示，其係包失面方形光學玻璃鏡片i如 13及一肩部丨丨所構成，第—光學面12、一第二光學面 非球面，第二光學面13^— ’第—光學面12為—凸面且為 形且四角均為直角， =面且為非球面，肩部u為方 187在本實施例之方形光學破方形肩部11。 Λ87 _，當組褒於鏡頭組3 =兄片1，其焦距長度為 於對角線尺寸為1/7"(英寸）以°圖5、6所示，可應用 施例之第—光學面12之凸非球面^CMGS感測元件。本實 面之非球面參數如表-，使用之祕—光學面13之凹非球 非球面公式（1) 卜練面公式如公式（1): CV2 為〜〜6 X： ^Αι〇^°^Α12Υ12^Αι4Υ14 其中，C=l/R ;而各參數界定如 ” 陷深值（Sag); 是Y方向的值（與曲面中 下：M343166 [New technical field] This is a kind of square optical glass lens, especially a square optical glass lens with precise optical surface and right angle square shoulder for low-cost square lens for mobile phone camera and CCD ( A camera that senses a sensing element such as a charge coupled device or a CMOS (co is a lementary metal-oxide-semiconductor). [Prior Art] With the advancement of technology, electronic products are constantly moving toward light, short, and versatile, and electronic products such as digital still cameras, PC cameras, and network cameras (network) Cameras, mobile phones or personal digital assistants (PDAs) have the need for imaging devices; for portable and ergonomic needs, imaging devices not only need good imaging quality but also need The smaller volume and lower production cost can effectively improve the applicability of the image taking device. Precision glass molding techniques have been widely used to manufacture aspherical molded glass lenses with high resolution, good stability and low cost, such as US Patent No. 2006/0107695, US2007/0043463, Taiwan Patent TW095101830, TW095133807, Japanese patent JP63-295448, etc., which utilizes the characteristics of softening of glass at high temperature, heats and softens a glass preform (glass pref〇rm) on the forming mold and in the lower mold, and then corresponds the upper and lower mold cores. Closing and pressing, transferring the optical cavity surface of the upper and lower mold cores to the softened glass preform, and after cooling, separating the upper and lower mold cores to form a cavity surface shape having 3 M343166 upper and lower mold cores Molded glass lens. In order to reduce the manufacturing cost, U.S. Patent No. 7,312,933 discloses the use of a cut square glass element to form a square single lens by molding. As shown in Fig. 1, the square single lens can be easily The lens assembly is proposed in the Japanese Patent No. JP63-304201, and the US Patent No. 2005/041215 discloses a glass lens-shaped lens array. For forming a single lens, Japanese Patent No. 02-044033 discloses the use of a moving glass material and The lens blank 2a having a plurality of optical lenses lb is formed by a plurality of molding methods as shown in FIG. 2 φ, which can be further cut into a single lens lb; and an infrared filter (infrared ray mter) is disclosed in US 2004/165095. Multi-cavity glass molding allows a dielectric layer to be pressed onto a flat and convex lens and then cut into a single infrared filter. Although in the glass molding technique, a molding die can be provided with a plurality of cavities, and a plurality of lenses can be formed by cutting a single die to cut the manufacturing cost. However, the manufacturing of multiple cavities is still limited to φ for spherical lenses or flat convex, flat concave lenses. Since a small camera or a mobile phone camera lens must be designed with an aspherical glass lens, however, it is difficult to smoothly discharge air by making the plurality of cavity molds once, which reduces the precision of the aspherical glass lens. There are the following methods in the prior art, and attempts have been made to solve the problem of residual air, such as Japanese Patent No. JP 2 〇〇 2-003225, jp 〇 5-286730, JP 06-191861, US Patent US 2005/0172671, European Patent EP 0648712, etc., using control pressure , temperature or surface roughness method, to control the operating conditions to try to solve the problem of residual air; or as in 曰4 M343166, this patent JP61-291424, JP2000-044260, Taiwan patent TWI248919, TW200640807, US patent US2005/0242454, etc. An air passage is provided in the molding apparatus to discharge the air; or, as in Japanese Patent No. 61-291424, JP 08-337428, US Pat. No. 7,159,420, etc., in the mold, in particular, the lower mold core is provided with a groove or a vent hole to discharge air, however, However, the grooves or vents may form opposing protrusions (such as bumps or ribs) on the formed lens, causing problems in secondary processing or subsequent assembly. For a single cavity, the exhaust effect is generally expressed in terms of exhaust efficiency, and the exhaust efficiency d is equal to the cross-sectional area of the exhaustable passage divided by the cavity volume (5 = cross-sectional area of the exhaustable passage/cavity volume); The exhaust gas efficiency is large, which means that the air can escape quickly during the molding process without accumulating in the cavity. On the contrary, the exhaust efficiency is low, indicating that the exhaust gas is easy to block; for smooth exhaust, the value should be higher than 0.25. The above is appropriate. For a plurality of cavities, especially near the center of the mold core, the exhaust is not easy. Through long-term experimental results, for the square glass element, the value of the cavity near the edge of the mold should be higher than 125. The value of the cavity above the center of the mold is increased by the ratio of the distance from the cavity to the outer edge of the forming die (edge of the die). In the conventional technique of providing an exhaust passage in a molding apparatus, if the channel cross-sectional area is large enough, the value of the channel can be close to a preferred value of 5, but at this time, a large amount of molten glass will penetrate into the channel to form a skirt. After forming, secondary processing is required to remove the hem skirt; and in the conventional technique in which the lower mold core presets a plurality of grooves to form a venting passage, although the glass material is prevented from pressing the air passage to impede the exhaust, but forming A plurality of convex bodies are formed on the lens, which will cause difficulty in assembling the lens. If the groove of the lower mold is shallow, the value of the 3 is too low and the exhaust effect is 5 JV1343166; the lower mold is provided with a groove. The method is applied to multi-cavity molding, because the air passage is too long in the cavity of the center of the multi-cavity, and the exhaust effect is not good. Therefore, the use of precision molding glass forming technology to produce multi-cavity optical glass: the lens, the forming mold should be designed to make the exhaust efficiency 5 tend to a larger value 1 does not form a projection on the lens In order to avoid the need for secondary processing smoothing or affect the assembly of the lens, in order to meet the yield and production needs of mass production. [New content] • y This creation is intended to provide a square optical glass lens which is formed by using a rotating glass element to be placed in a multi-cavity forming die and a lower die to heat the pressing die. The lens blank of the plurality of lenses, and then the piece of the blank is cut to form a square optical glass lens comprising a first optical surface. Further, on one side of the lens, a second optical surface is disposed on the opposite surface of the first optical surface of the lens, and a right-angled square shoulder is disposed on the periphery of the optical surface, wherein the first and second optical surfaces are square optical glasses The optically active area of the lens, the shoulder is a non-optical active area of the square optical glass lens, and forms a square shape of a square corner, and the right angle and the square shape of the shoulder are cut by the lens blank In order to simplify the process of the square optical glass lens, and the square lens can be easily assembled on the lens group. A further object of the present invention is to provide a square optical glass lens, wherein: four corners, square shoulders of right angles can further form grooves formed by the channels formed by the grooves on the squares, and the grooves are formed by the grooves. The λ is formed by a plurality of convex bodies on the mold, and the gap formed by the height difference between the square glass and the 7C material can be used as an exhaust passage in the molding process to make the upper edge of the forming die Exhaust efficiency 6 ^ 〇 · 25 ' 6 M343166 The discharge rate of the central cavity is d ^ The air is effectively discharged to avoid the precision of the lens of the cavity lens during the molding process. The air remains in the cavity and the square glass is lowered. [Embodiment] Hereinafter, the advantages will be described in more detail with reference to the accompanying drawings, the above-mentioned and other technical features, and the "first embodiment". This embodiment is a convex and concave figure shown in Figs. 3 and 4, which is composed of a square-shaped optical glass lens i such as 13 and a shoulder rim, a first optical surface 12, a second optical surface aspherical surface, and a second The optical surface 13^-'the first optical surface 12 is convex and shaped and the four corners are right angles, the = surface is aspherical, and the shoulder u is square 187 in the square optically broken square shoulder 11 of the present embodiment. Λ87 _, when the group is in the lens group 3 = brother 1 , the focal length is 1/7 of the diagonal size (inches) as shown in Fig. 5 and 6, the applicable optical surface 12 convex aspherical ^CMGS sensing components. The aspherical parameters of the solid surface are as shown in Table-, the secret of use--the concave aspherical aspherical formula of the optical surface 13 (1) The formula of the polished surface is as shown in the formula (1): CV2 is ~~6 X: ^Αι〇^° ^Α12Υ12^Αι4Υ14 where C=l/R; and each parameter is defined as “depth value (Sag); is the value in the Y direction (with the surface below:
C 是X方向的曲率，即是曲; 7 —_—._ M343166 Κ :是圓錐係數（Conic constant); A2-An :分別是 Y 的 2、4、6、^ 次冪的非球面係數。 表一··第一實施例之非球面參數 5、10、12、··· η 第一光學面12 ---- R=-0.5835097 K=-14.1246 Α4=-5.1269103 Α6=32.985477 Α8=-193.86029 Α10=574.86653 Α12=-763.00562 Αΐ4=〇 第二光學面13 ^^---- R=-1.131684 Κ=2.199666 Α4=2.4218476 Α6=-51.453692 Α8=327.77628 A iq=-99 0.5 69 5 4 Αΐ2=〇 Αΐ4=〇 如圖5、6所示，其分別是本實施例之方形光學玻璃 鏡片1組裝於一鏡頭組3中之示意圖，該鏡頭組3包含一 方形光學玻璃鏡片1、一鏡片座31及一光闌32,其方 • 形光學玻璃鏡片1之直角方形肩部11係與鏡片座固定， 而以第一光學面12與第二光學面13為光學作用區，可將進 入光闌32之光線聚焦於CMOS感測元件（圖中未示）上。 請參考圖9 ’本創作方形光學破璃鏡片1之製造方法 主要係以一方形破璃元材4，並利用一多模穴成形模具 (multi-cavity forming mold)5以多模穴模造玻璃模造 (multi-cavity glass molding)成一具有多鏡片之鏡片毛胚 2，再分離成個別的（individual)方形光學玻璃鏡片1 ; 本實施例係採用一具有20個模穴50之成形模具5以一次模 8 M343166 造成形為一具有20個第一光學面12及第二光學面13 (即2〇 個鏡片）之鏡片毛胚2，再裁切分離成2〇個方形光學玻璃 鏡片1 ;如圖9所示，本實施例方形光學玻璃鏡片1之製 ‘造方法包含以下步驟： 提供一方形玻璃元材4，該方形玻璃元材4係採用 Η-BAL42玻璃材料，而該方形玻璃元材4以均勻的厚度為 最佳，以可節省模造加溫加壓時間； 提供一鏡片成形模具5，該成形模具5至少包含一上 • 模仁51及一下模仁52，上模仁51分別設具20個凸非球面模 穴面50 ,而下模仁52對應於上模仁51之凸非球面模面設具 20個凹非球面模穴面50 (為方便本創作之說明，不論上模 仁51及下模仁52所設之非球面模穴面是凸非球面或凹非球 面，在本創作中通為模穴面）； 將上述方形玻璃元材4置於上述成形模具5之上模仁 51及下模仁52所形成的空間中，利用加熱裝置53如加熱管 加熱至玻璃軟化點溫度，再對上模仁51與下模仁52施以反 φ 向（相對）壓力，以進行加溫加壓之模造作業，使方形玻 璃元材4藉上模仁51及下模仁52之間複數個上下對應之 凸、凹非球面模穴面50而模造成一鏡片毛胚2，該鏡片毛 胚2即具有20個相對應之凸非球面〇2)及凹非=片毛 (13)； 依據預定的尺寸裁切該鏡片毛胚2，使其分離成單一 的方形光學玻璃鏡片1完成品，該方形光學玻璃鏡片i則 具有一凸非球面之第一光學面12、一凹非球面第二光學面 13及一角方形肩部11。 9 M343166 鏡片毛形光學玻璃鏡片1係由 形肩部11之各直角端處可能:裁產== :但不影響其第一光學面12及第== 再形光學玻璃鏡“之直角方形肩部11不須C is the curvature in the X direction, that is, the curve; 7 —_—._ M343166 Κ : is the conic coefficient (Conic constant); A2-An : the aspherical coefficient of the power of 2, 4, 6, and ^ of Y, respectively. Table 1. The aspherical parameters of the first embodiment 5, 10, 12, ... η First optical surface 12 ---- R = -0.5835097 K = -14.1246 Α 4 = -5.1269103 Α 6 = 32.985477 Α 8 = -193.86029 Α10=574.86653 Α12=-763.00562 Αΐ4=〇second optical surface 13 ^^---- R=-1.131684 Κ=2.199666 Α4=2.4218476 Α6=-51.453692 Α8=327.77628 A iq=-99 0.5 69 5 4 Αΐ2=〇 Αΐ4=〇, as shown in FIG. 5 and FIG. 6, which are schematic diagrams of the prismatic optical glass lens 1 of the present embodiment assembled in a lens group 3, the lens group 3 comprising a square optical glass lens 1, a lens holder 31 and a diaphragm 32, the right-angled square shoulder 11 of the square-shaped optical glass lens 1 is fixed to the lens holder, and the first optical surface 12 and the second optical surface 13 are optically active regions, and the entrance pupil 32 can be The light is focused on a CMOS sensing element (not shown). Please refer to FIG. 9 'The manufacturing method of the square optical glass lens 1 is mainly a square broken glass material 4, and a multi-cavity forming mold 5 is used to mold the glass by multi-cavity forming mold 5 (multi-cavity glass molding) into a lens blank 2 having a plurality of lenses, and then separated into individual square optical glass lenses 1; in this embodiment, a molding die 5 having 20 cavities 50 is used for the primary mode. 8 M343166 is formed into a lens blank 2 having 20 first optical faces 12 and second optical faces 13 (ie, 2 lenses), and then cut into 2 square optical glass lenses 1; As shown, the method for fabricating the prismatic optical glass lens 1 of the present embodiment comprises the steps of: providing a square glass element 4, which is made of bismuth-BAL42 glass material, and the square glass element 4 is The uniform thickness is optimal to save the molding heating and pressing time; a lens forming mold 5 is provided, the forming mold 5 includes at least one upper mold core 51 and a lower mold core 52, and the upper mold core 51 is provided with 20 Convex aspherical cavity face 50, and The mold core 52 is provided with 20 concave aspherical surface faces 50 corresponding to the convex aspherical surface of the upper mold core 51 (for the convenience of the present description, regardless of the aspherical mold set by the upper mold 51 and the lower mold core 52) The hole surface is a convex aspherical surface or a concave aspherical surface, which is a cavity surface in the present creation; the square glass element 4 is placed in the space formed by the mold core 51 and the lower mold core 52 above the forming mold 5. The heating device 53 is heated to the glass softening point temperature by a heating tube, and then the upper mold core 51 and the lower mold core 52 are subjected to a reverse φ (relative) pressure to perform the heating and pressing molding operation to make the square glass element. The material 4 is molded by a plurality of convex and concave aspherical cavity faces 50 between the mold core 51 and the lower mold core 52 to form a lens blank 2, and the lens blank 2 has 20 corresponding convexities. Aspherical 〇 2) and concave non-sheet bristles (13); The lens blank 2 is cut according to a predetermined size to be separated into a single square optical glass lens 1 finished product, and the square optical glass lens i has a The first optical surface 12 of the convex aspheric surface, a concave aspherical second optical surface 13 and a square shoulder portion 11. 9 M343166 Lens-shaped optical glass lens 1 is made up of the right-angled ends of the shoulders 11: cut == : but does not affect its first optical surface 12 and the == reshaped optical glass mirror "right square shoulder Department 11 does not have to
土备日純Μ加工以去除其各直角端處所可能產生之不平整 失角^，藉以有效地降低製作成本；而組裝時，如圖5、 6=不可於鏡碩組3之鏡片座31與方形光學玻璃鏡片丄之 直方形肩邛丨1之四角接觸處分別設一容腔33以對應於直 角方形肩。卩11之直角端而利於組裝；或如圖7、8所示可 於鏡片座31與方形光學玻璃鏡片1之直角方形肩部11之四 邊接觸處分別設置對稱之突出塊34，使相鄰的二個突出塊 34之間之交角處相對形成一容腔犯，也可利於組裝；因 此’本創作方形光學破璃鏡片1之未經研磨加工之不平整 i角端可容人鏡頭㉟3内之對應容腔33中，而不影響組裝 精度，由此可免去研磨加工過程，進一步降低製造成本。 〈第二實施例〉 本實施例係一雙凸型之非球面方形光學玻璃鏡片1如 圖10、11所示，其係由一第一光學面12、一第二光學面13 及一直角方形肩部11所構成，其中，第一光學面12為一凸 非球面，第二光學面13為一凸非球面，直角方形肩部^為 方形且四角均為直角。 在本實施例之方形光學玻璃鏡片1，其焦距長度為 1. 796 mm ’當組裝於鏡頭組3中如圖12、13，可應用於對 M343166 =寸為mo"(英寸）以下之⑽8感測元件。本實施 例之第光學面12與第二光學面均為凸非球面，其凸非球 面，非球面參數如表二，使狀非球面公式為第—實施 所述之非球面公式（1) 〇 產三二實施例之非玻面來數 :第一光1厂 — R=-1·219431 Κ=2·492548 -- Α4=-0.899965 Α6=53· 482671 Α8=-1769· 1958 Αι〇=25738. 761 Αΐ2=-131641.38 Al4=〇 第二光學面13 R=-l.986938 Κ^2.06581 Α4=0· 186610 Ae=6. 186899 Α8=-35. 21707 Αι〇=74. 223531 Α12=-30· 585622 ____________ Αΐ4=〇 如圖12、13所示，其分別是本實施例之方形光學玻璃 鏡片1組裝於一鏡頭組3中之示意圖。該鏡頭組3包含一The earth preparation day is purely processed to remove the uneven angles that may occur at the right end ends thereof, so as to effectively reduce the production cost; and when assembled, as shown in Fig. 5, 6 = the lens holder 31 of the mirror group 3 is not A square cavity 33 is provided at each of the four corner contacts of the square optical glass lens 直 straight square shoulder to correspond to a rectangular shoulder. The right angle end of the 卩11 is convenient for assembly; or as shown in FIGS. 7 and 8, a symmetrical protruding block 34 may be respectively disposed at the four-side contact of the lens holder 31 and the rectangular shoulder portion 11 of the prismatic optical glass lens 1 so as to be adjacent to each other. The angle between the two protruding blocks 34 is opposite to that of a cavity, which can also facilitate assembly; therefore, the unfinished i-angle end of the created square optical glass lens 1 can accommodate the lens 353. Corresponding to the cavity 33 without affecting the assembly precision, thereby eliminating the grinding process and further reducing the manufacturing cost. <Second Embodiment> This embodiment is a biconvex type aspherical square optical glass lens 1 as shown in Figs. 10 and 11, which is composed of a first optical surface 12, a second optical surface 13, and a right-angle square. The shoulder portion 11 is configured, wherein the first optical surface 12 is a convex aspheric surface, the second optical surface 13 is a convex aspheric surface, and the right-angle square shoulder portion is square and the four corners are right angles. In the prismatic optical glass lens 1 of the present embodiment, the focal length is 1.796 mm 'when assembled in the lens group 3 as shown in Figs. 12 and 13, it can be applied to the (10) 8 sense of M343166 = inch being mo" Measuring component. The optical surface 12 and the second optical surface of the embodiment are both convex aspherical surfaces, convex aspherical surfaces, aspherical parameters are as shown in Table 2, and the aspherical surface formula is the aspherical formula (1) described in the first embodiment. Non-glass surface number of the production of the two two embodiments: First Light 1 Factory - R = -1 · 219431 Κ = 2 · 492548 -- Α 4 = -0.899965 Α 6 = 53 · 482671 Α 8 = -1769 · 1958 Αι〇 = 25738 761 Αΐ2=-131641.38 Al4=〇second optical surface 13 R=-l.986938 Κ^2.06581 Α4=0· 186610 Ae=6. 186899 Α8=-35. 21707 Αι〇=74. 223531 Α12=-30· 585622 ____________ Αΐ4=〇 As shown in FIGS. 12 and 13, they are schematic views of the square optical glass lens 1 of the present embodiment assembled in a lens group 3. The lens group 3 includes a
方形光學玻璃鏡片1、一鏡片座31及一光闌32，其中，方 形光學玻璃鏡片1之直角方形肩部11係與鏡片座31固定， 而以第一光學面12與第二光學面13為光學作用區，可將進 入光闌32之光線聚焦於CMOS感測元件（圖中未示）上。 本創作方形光學玻璃鏡片1之製造方法主要係以一方 形玻璃元材4，並利用一多模穴成形模具 forming mold)5以多核穴棋造玻璃模造（multi-cavity M343166 glass molding)成一具有多鏡片之鏡片毛胚2，再分離成 個別的（individual)方形光學玻璃鏡片丨;因此本實施例 方形光學玻璃鏡片1之製造方法及其步驟與第—實施例者 (如圖9所示）相似，故於此不另再說明，但本實施例所 使用之成形模具5之模穴面50為雙凹型，即上模仁51及下 模仁52之模穴面50均為凹非球面之模穴面5〇，以使壓製成 形之方形光學玻璃鏡片1為一雙凸型非球面鏡片。 又本實施例方形光學玻璃鏡片1在進行裁切步驟時， • 方形光學玻璃鏡片1係由鏡片毛胚2以縱向及橫向裁切成 單一鏡片，雖然其直角方形肩部11之各直角端處可能在裁 切作業中產生不平整央角端，但不影響其第一光學面12及 第一光學面13之光學作用面。又本創作方形光學玻璃鏡片 1之直角方形肩部11並不須再藉由研磨加工以去除其各直 角端處所可能產生之不平整尖角端，藉以有效地降低製作 成本；而組裝時，如圖12、13所示可於鏡片座31與方形光 學玻璃鏡片1之直角方形肩部11之四邊接觸處分別設置對 • 稱之突出塊34，使相鄰的二個突出塊34之間之交角處相對 形成一容腔33以利於組裝；或於鏡頭組3之鏡片座3丨與方 形光學玻璃鏡片1之直角方形肩部11之四角接觸處分設 一容腔33 (參考第一實施例之圖5、6所示），以對應於 直角方形肩部11之直角端而利於組裝；因此，本創作^形 光學玻璃鏡片1之未經研磨加工之不平整尖角端可容入鏡 頭組3内之對應容腔33中，而不影響組裝精度，由此可免 去研磨加工過程，進一步降低製造成本。 <第三實施例> 12 M343166 本實施例係一利用設有凸體之成形模具而製成之方形 光學玻璃鏡片1如圖17所示。在習知的玻璃鏡片模造過程 中，當玻璃材料玻璃預型體（glass preform)置入成形模 具之模穴後，一般均有抽真空的過程，其目的在排出模穴 内多餘空氣，避免空氣殘留於模穴中造成氣泡而影響精 度。由於玻璃材料會壓住下模仁致下模仁之模穴内空氣不 易排除，在單一模穴的模造過程中有許多技術可克服此問 題；然而在如本創作所使用之多模穴的模造過程中，即多a square optical glass lens 1, a lens holder 31 and a diaphragm 32, wherein the right angle square shoulder 11 of the prismatic optical glass lens 1 is fixed to the lens holder 31, and the first optical surface 12 and the second optical surface 13 are The optically active area focuses the light entering the aperture 32 onto a CMOS sensing element (not shown). The manufacturing method of the square optical glass lens 1 is mainly a square glass element 4, and a multi-cavity M343166 glass molding is used to form a multi-cavity M343166 glass molding. The lens blank 2 of the lens is separated into individual square optical glass lenses; therefore, the manufacturing method and steps of the square optical glass lens 1 of the present embodiment are similar to those of the first embodiment (as shown in FIG. 9). Therefore, the mold surface 50 of the forming mold 5 used in the embodiment is a double concave type, that is, the mold surface 50 of the upper mold core 51 and the lower mold core 52 are concave aspherical molds. The hole surface is 5 inches so that the press-formed square optical glass lens 1 is a double convex aspherical lens. Further, in the embodiment, the prismatic optical glass lens 1 is subjected to a cutting step, and the square optical glass lens 1 is cut into a single lens by the lens blank 2 in the longitudinal direction and the transverse direction, although at right angle ends of the right-angle square shoulder portion 11 It is possible to produce an uneven central end in the cutting operation, but does not affect the optical surface of the first optical surface 12 and the first optical surface 13. Moreover, the right-angled square shoulder 11 of the square optical glass lens 1 does not need to be ground to remove the uneven sharp end which may be generated at the right-angle ends, thereby effectively reducing the manufacturing cost; 12 and 13 respectively, a pair of protruding blocks 34 can be respectively disposed at the four-side contact of the lens holder 31 and the rectangular shoulder portion 11 of the prismatic optical glass lens 1, so that the angle between the adjacent two protruding blocks 34 is A cavity 33 is formed oppositely to facilitate assembly; or a cavity 33 is disposed at a corner contact of the lens holder 3 of the lens group 3 and the rectangular shoulder 11 of the prismatic optical glass lens 1 (refer to the figure of the first embodiment) 5, 6), which is suitable for assembly corresponding to the right-angle end of the right-angled square shoulder 11; therefore, the unsharpened sharp end of the created optical glass lens 1 can be accommodated in the lens group 3 Corresponding to the cavity 33 without affecting the assembly precision, thereby eliminating the grinding process and further reducing the manufacturing cost. <Third Embodiment> 12 M343166 This embodiment is a prismatic optical glass lens 1 which is formed by using a molding die having a convex body as shown in Fig. 17. In the conventional glass lens molding process, when a glass preform is placed in a cavity of a forming mold, a vacuuming process is generally performed for the purpose of discharging excess air in the cavity to avoid air residue. Bubbles are created in the cavity to affect accuracy. Since the glass material will press the lower mold to cause the air in the cavity of the lower mold to be easily eliminated, there are many techniques to overcome this problem in the molding process of a single cavity; however, in the molding process of the multi-cavity used in the present creation That much
模穴模造玻璃模造（multi-cavity glass molding)，其氣體 排除更不容易。參考圖14及圖9所示，本實施例所使用之 成形模具5之下模仁52可設置多個凸體54 (如圖14所示15 個），邊凸體54之數目可依模穴面5〇 (即模穴）之數目而 決定，其係佈設於下模仁52之模穴面50之外部適當位置處 且具有一致的高度；又進一步可於上模仁51設有多個凸體 54 (如圖15所示15個）（可依模穴數目而定）凸體54，該 凸體54之數目可依模穴面5G (即模穴）之數目或進一步^ 合下模仁52所佈設多個凸體54而決定，其係佈設於 51之模穴面5G之外部適當位置處且具有—致的高度；其一 中，上模仁51可*設有凸體54，但設置後可增加排氣& 占，而本實施賴制之成形模具5其± 丰 皆設有凸體54。 52 由於下模仁52與上模仁51的凸體 之表面之間構成-個間隙，在模造過程中抽=11 中空叙拉造設備抽真空後可由該凸體圍^ 所形成之《中向外排出，藉以達成高效率之排氣=差 M343166 即增加排氣效率5值。而該凸體54可在模造成形之鏡片毛 胚2上如圖16所示形成相對之凹槽（或凹孔）15，且該凹 _ 槽（或凹孔）15也有可能在鏡片毛胚2經裁切後仍然留在 :方形光學玻璃鏡片1之肩部11上如圖17所示（視凸體54之 佈設位置或裁切分離線之位置而定），該等凹槽（或凹 孔）15並不會影響本實施例鏡片1之直角方形肩部^之尺 寸及精密度’可避免習知成形模具中所設之排氣用凹槽常 會在鏡片之肩部上形成相對之凸出物而影響成形鏡片肩部 • 之尺寸及精密度的困擾；使用本實施例之設有凸體54之成 形模具5可增進模造玻璃鏡片1之成形良率且不影響該鏡 片1之後續組裝作業。 本實施例係利用一具有凸體54之成形模具5製造，本 實施例之方形光學玻璃鏡片丨可為第一實施例之凸凹型非 球面鏡片或第二實施例之雙凸型非球面鏡片或其他型非球 面鏡片，本實施例之製造方法係以第一實施例之凸凹型非 球面鏡片為例說明（但不限為凸凹非球面鏡片），其包含 • 以下步驟（可同時參考圖9及圖14、15所示）： 扼仏方化玻璃元材4，該方形玻璃元材4係以 H-BAL42玻璃為材料，為節省模造加溫加壓時間，以均句 的厚度為最佳； ^提供一鏡片成形模具5，該成形模具5至少包含一上 拉仁51及-下板仁52，上模仁51分別設具多個（如圖14所 示20個）之凸_面模穴面50，而下模仁52對應於上模仁 51之凸非球面模穴面則設具等數個（如圖15所示20個）凹 非球面模穴面50 ;又上模仁51與下模仁52之非球面模穴面 M343166 50的外環部上分別設有多個（如圖丨4、15所示丨5個）凸體 54，且各凸體54之高度均勻（但該上模仁51之非球模穴面 的外環部上可不設凸體54); 將上述方形玻璃元材4放置於成形模具5之上模仁51 及下模仁52所構成的空間中，利用加熱裝置53如加熱管至 _璃軟化點溫度，再對上模仁51與下模仁52施以反向（相 ，）壓力以進行加溫加壓之模造作業，使方形玻璃元材4Multi-cavity glass molding, gas exclusion is not easy. Referring to FIG. 14 and FIG. 9, the mold core 52 used in the present embodiment can be provided with a plurality of convex bodies 54 (as shown in FIG. 14), and the number of the side convex bodies 54 can be determined by the mold cavity. The number of faces 5 〇 (ie, the cavity) is determined to be disposed at an appropriate position outside the cavity face 50 of the lower mold core 52 and has a uniform height; and further, the upper mold core 51 is provided with a plurality of convexities. The body 54 (as shown in Fig. 15) (depending on the number of cavities) the convex body 54, the number of the convex body 54 can be based on the number of the cavity surface 5G (i.e., the cavity) or further the lower mold core 52 is disposed on a plurality of convex bodies 54 and is disposed at an appropriate position outside the cavity surface 5G of 51 and has a height; in the middle, the upper mold 51 can be provided with a convex body 54, but After the installation, the exhaust gas can be increased, and the forming mold 5 which is used in the present embodiment is provided with a convex body 54. 52 Because the gap between the lower mold core 52 and the surface of the convex body of the upper mold core 51 forms a gap, during the molding process, the medium direction is formed by the convex body surrounding the pumping device. External discharge, in order to achieve high efficiency of exhaust = difference M343166 that increases the exhaust efficiency 5 value. The convex body 54 can form opposite grooves (or recessed holes) 15 on the molded lens blank 2 as shown in FIG. 16, and the concave groove (or concave hole) 15 is also possible in the lens blank 2 After cutting, it remains: the shoulder 11 of the square optical glass lens 1 is as shown in Fig. 17 (depending on the position of the convex body 54 or the position of the cutting separation line), the grooves (or the concave holes) 15 does not affect the size and precision of the right-angled square shoulder of the lens 1 of the present embodiment. It can avoid that the groove for exhaust gas provided in the conventional forming mold often forms a relative protrusion on the shoulder of the lens. The influence of the size and the precision of the shoulder of the formed lens; the use of the forming mold 5 provided with the convex body 54 of the present embodiment can improve the forming yield of the molded glass lens 1 without affecting the subsequent assembly work of the lens 1. . The embodiment is manufactured by using a forming mold 5 having a convex body 54. The square optical glass lens unit of the embodiment may be the convex-concave aspherical lens of the first embodiment or the lenticular aspherical lens of the second embodiment or For other types of aspherical lenses, the manufacturing method of the present embodiment is described by taking the convex-concave aspherical lens of the first embodiment as an example (but not limited to a convex-concave aspherical lens), which comprises the following steps (refer to FIG. 9 and Figure 14 and Figure 15): 扼仏方化玻璃元材4, the square glass element material 4 is made of H-BAL42 glass, in order to save the mold heating and pressing time, the thickness of the uniform sentence is the best; A lens forming mold 5 is provided. The forming mold 5 includes at least one upper puller 51 and a lower core 52, and the upper mold 51 is provided with a plurality of (20 as shown in FIG. 14) convex-face molds. Face 50, and the lower mold core 52 corresponds to the convex aspheric surface of the upper mold core 51, and then has a plurality of (20 as shown in FIG. 15) concave aspheric mold surface 50; There are a plurality of outer ring portions of the aspherical cavity surface M343166 50 of the lower mold core 52 (as shown in Fig. 4, 15丨5) convex body 54, and the height of each convex body 54 is uniform (but the outer ring portion of the non-spherical cavity surface of the upper mold core 51 may not have the convex body 54); the square glass material 4 is placed on In the space formed by the mold core 51 and the lower mold core 52 on the forming mold 5, the heating means 53 such as the heating tube to the glass softening point temperature is applied, and the upper mold core 51 and the lower mold core 52 are reversed. ,) pressure to carry out the molding work of warming and pressing, so that the square glass element 4
藉上模仁51及下模仁52之一凸一凹非球面模穴面5〇而壓製 出一鏡片毛胚2如圖16所示，該鏡片毛胚2具有2〇個凸非 球面（12)及20個相對應之凹非球面（13)，且該鏡片毛 胚2之單面上各因凸體54而分別形成15個凹槽15如圖“所 不（圖16所示鏡片毛胚2因透明關係而顯示3〇個凹槽 15); 依據預定的尺寸裁切該鏡片毛胚2，分離成單一的方 =光學玻璃鏡片i完成品，該方形光學玻璃鏡片1則具有 2非球面之第—光學面12、—凹非球面之第二光學面13 =面12、13之外的直角方形肩部u，而且若該肩告川 凹·時如圖17所示，該等凹槽15並不影響方形 九予玻璃鏡片1之後續組裝作業。 <第四實施例> 之方利用設有長條形凸體之成形模具而製 t方形先學玻璃鏡片1如圖2〇所 用於模穴面50之直録大且較=而該成形模具尤其 更為不易，為增加排氣效❹^形模具5 ’因其排 成形模具上狀之凸額改為長步將第三實施例 勺长條形凸體55，並妥善佈 M343166 在成形模具5之下模仁52及/或上模仁此非球面模穴面 50的外環部上’並可使料長條形凸體55錢穴面5〇之邊 緣56延伸至成形模具5之外緣57如圖18所示。本實施例之 製造方法如同第三實施例，而其模造製成之鏡片毛庇2如 圖19所示’其各單面上具有因長條形凸體阳而相對形成之 長條形凹槽14;而裁切該鏡片毛胚2以分離成單—的方形 光學玻璃鏡片1完成品如圖20所示，其具有一凸非球面之 第-光學面12、-凹非球面之第二光學㈣及—直角方形 肩部η ’其中’該直角方形肩則上若留存有長條形凹槽 14如’所示（視長條形凸體55之佈設位置或裁切分離線 位置而幻’又該等長條形凹槽14並不會影響方形光學玻 璃鏡片1之直角方形肩部11的尺寸及精密度；又使用設有 長條形凸㈣之成形模具5可增進本實施财形光學玻璃 鏡片1之成形良率且不影響該鏡片丨之後續組裝作業。 〈第五實施例〉 本實施例係一利用設有倒V型長凸體之成形模具製造 之具有預刻凹槽之方形光學玻璃取像鏡片i如圖^示。 為便於裁切一鏡片毛胚2成數個相同尺寸的方形光學玻璃 ，可在成形模具5之上模仁51或下模仁52之非球面 模穴面50的外環部上佈設多條倒v型長條凸體兕如圖21所 不，該等倒V型長條凸體58為縱向及/或橫向等間距排 列，且高度均勻，使在模造成形作業中模穴内空氣可由方 形玻璃元材4與該等倒v型長條凸體58之間因高度落差所 形成之間隙中向外排出，而增進排氣效率；又該等倒¥形 長條凸體58可在模造成形的鏡片毛胚2上對應形成v形預 M343166 刻凹槽16如圖22所示。本實施例之製造方法如同第三實施 例，其製成之鏡片毛胚2如圖22所示具有已成形之V形預 刻凹槽16，使鏡片毛胚2可利用該等V形預刻凹槽16分離 成單一的方形光學玻璃鏡片1完成品。 又上述縱向及/或橫向等間距排列佈設在下模仁52及 /或上模仁51上之倒V型長條凸體57，可進一步改為間斷 式排列之倒V型長條凸體58如圖23所示，也就是一較長條 之倒V型長條凸體58改成較短而多段式或間斷式排列之倒 V型長條凸體58，使各段倒V型長條凸體58之間留有空隙 59而未形成封閉狀態，藉以增進成形模具之排氣效率；而 模造成形的鏡片毛胚2也對應具有多段式或間斷式排列之 V形預刻凹槽17如圖24所示，可利於裁切成多個（如圖示 之20個）單一的方形光學玻璃取像鏡片1 ;又上述該等v 形預刻凹槽16、17並不會影響本實施例方形光學玻璃鏡片 1之直角方形肩部11的尺寸及精密度；又使用設有倒V型 長條凸體58之成形模具5可增進本實施例方形光學玻璃鏡 片1之成形良率且不影響該鏡片1之後續組裝作業。 以上所示僅為本新型之較佳實施例，對本新型而言僅 是說明性的，而非限制性的。本專業技術人員理解，在本 新型權利要求所限定的精神和範圍内可對其進行許多改 變，修改，甚至等效變更，但都將落入本新型的保護範圍 内0 【圖式簡單說明】 圖1係習知之方形光學玻璃鏡片示意圖。 圖2係習知之鏡片毛胚示意圖。 17 M343166 圖3係本創作方形光學玻璃鏡片第一實施例之正面示意 圖。 圖4係圖3方形光學玻璃鏡片之一侧面示意圖。 圖5係本創作方形光學玻璃鏡片第一實施例應用於鏡頭組 之一侧面示意圖。 圖6係圖5之一正面示意圖。 圖7係本創作方形光學玻璃鏡片第一實施例應用於鏡頭組 之一侧面示意圖。 圖8係圖7之一正面示意圖。 圖9係本創作方形光學玻璃鏡片（第一實施例）之製造方 法流程示意圖。 圖10係本創作方形光學玻璃鏡片第二實施例之一正面示意 圖。 圖11係圖10方形光學玻璃鏡片之一侧面示意圖。 圖12係本創作方形光學玻璃鏡片第二實施例應用於鏡頭組 之一侧面示意圖。 圖13係圖12之一正面示意圖。 圖14係本創作第三實施例所利用設有多個凸體之成形模具 之下模仁示意圖。 圖15係本創作第三實施例所利用設有多個凸體之成形模具 之上模仁示意圖。 圖16係本創作第三實施例之鏡片毛胚示意圖。 圖17係本創作方形光學玻璃鏡片第三實施例之示意圖。 圖18係本創作第四實施例所利用設有長條形凸體之成形模 具之下模仁示意圖。 M343166 圖19係本創作第四實施例之鏡片毛胚示意圖。 圖20係本創作方形光學玻璃鏡片第四實施例示意圖。 圖21係本創作第五實施例所利用設有多條倒v型長條凸體 之成形模具之下模仁示意圖。 圖22係利用圖21成形模具所模造成形的鏡片毛胚示意圖。 圖23係本創作第五實施例所利用設有多段倒v型長條凸體 之成形模具之下模仁示意圖。A lens blank 2 is pressed by a convex a concave aspherical surface 5 of the mold core 51 and the lower mold core 52. As shown in FIG. 16, the lens blank 2 has 2 convex convex aspheric surfaces (12). And 20 corresponding concave aspherical surfaces (13), and 15 concave grooves 15 are respectively formed on the single surface of the lens blank 2 by the convex body 54 as shown in Fig. 16 (the lens blank shown in Fig. 16) 2 showing 3 grooves 15) due to the transparent relationship; cutting the lens blank 2 according to a predetermined size, and separating into a single square = optical glass lens i finished product, the square optical glass lens 1 has 2 aspherical surfaces The first optical surface 12, the second optical surface 13 of the concave aspheric surface = the right-angled square shoulder u other than the faces 12, 13, and if the shoulder is a concave, as shown in Fig. 17, the grooves 15 does not affect the subsequent assembly work of the square nine-glass lens 1. The fourth embodiment uses the forming mold provided with the elongated convex body to make the t-square first glass lens 1 as shown in Fig. 2 The direct recording of the cavity surface 50 is large and relatively = and the forming die is particularly difficult, in order to increase the exhaust effect, the mold 5' is shaped by the shape of the die. Change the long strip-shaped convex body 55 of the third embodiment to the long step, and properly lay the M343166 on the outer ring portion of the mold core 52 and/or the upper mold core of the aspherical mold surface 50 under the forming mold 5' The edge 56 of the cavities 5 of the cavities 5 can be extended to the outer edge 57 of the forming die 5 as shown in Fig. 18. The manufacturing method of this embodiment is the same as that of the third embodiment, and the molding thereof is molded. As shown in FIG. 19, the lens cover 2 has an elongated groove 14 formed on each of the single faces due to the elongated convex body; and the lens blank 2 is cut to separate into a single square optical The finished glass lens 1 is shown in Fig. 20, which has a convex aspherical optical surface 12, a concave aspheric second optical (four) and a right square shoulder η 'where 'the right square shoulder is Retaining the elongated groove 14 as shown in the figure (depending on the position of the elongated protrusion 55 or the position of the cutting separation line), the long groove 14 does not affect the square optical glass lens 1 The size and precision of the right-angled square shoulder 11; and the use of a forming mold 5 having a long strip-shaped convex (four) can enhance the implementation of the financial optical glass The forming yield of the lens 1 does not affect the subsequent assembly work of the lens unit. <Fifth Embodiment> This embodiment is a square optical having a pre-groove formed by using a forming mold having an inverted V-shaped long convex body. The glass image taking lens i is shown in the figure. In order to facilitate cutting a lens blank 2 into a plurality of square optical glasses of the same size, the aspherical surface 50 of the mold core 51 or the lower mold core 52 can be formed on the forming mold 5. A plurality of inverted v-shaped elongated protrusions are disposed on the outer ring portion. As shown in FIG. 21, the inverted V-shaped elongated protrusions 58 are vertically and/or laterally arranged at equal intervals, and the height is uniform, so that the mold is formed. The air in the cavity in the operation can be discharged outward from the gap formed by the square glass element 4 and the inverted v-shaped elongated body 58 due to the height drop, thereby improving the exhaust efficiency; and the inverted strip-shaped strips The convex body 58 can form a v-shaped pre-M343166 groove 16 on the mold-forming lens blank 2 as shown in FIG. The manufacturing method of this embodiment is the same as the third embodiment, and the lens blank 2 produced by the lens has a formed V-shaped pre-groove 16 as shown in FIG. 22, so that the lens blank 2 can be pre-engraved by the V-shape. The groove 16 is separated into a single square optical glass lens 1 finished product. Further, the inverted V-shaped elongated protrusions 57 disposed on the lower mold core 52 and/or the upper mold core 51 are arranged in the longitudinal direction and/or the lateral direction, and may be further changed into an inverted V-shaped elongated body 58 such as an intermittent arrangement. As shown in Fig. 23, a long inverted V-shaped strip convex body 58 is changed into a short, multi-segment or intermittently arranged inverted V-shaped elongated body 58 so that each segment is inverted V-shaped elongated convex A gap 59 is left between the bodies 58 to form a closed state, thereby improving the exhaust efficiency of the forming mold; and the lens-forming blank 2 of the mold is also corresponding to the V-shaped pre-groove 17 having a multi-segment or intermittent arrangement. 24, which can be cut into a plurality of (as shown in the figure) single square optical glass lens 1; the above-mentioned v-shaped pre-grooves 16, 17 do not affect the square of the embodiment. The size and precision of the right-angled square shoulder 11 of the optical glass lens 1; and the forming mold 5 having the inverted V-shaped elongated body 58 can improve the forming yield of the square optical glass lens 1 of the embodiment without affecting the Subsequent assembly of the lens 1. The above are only the preferred embodiments of the present invention, and are merely illustrative and not limiting. A person skilled in the art understands that many changes, modifications, and even equivalent changes may be made within the spirit and scope of the invention as defined in the appended claims. Figure 1 is a schematic view of a conventional square optical glass lens. Figure 2 is a schematic view of a conventional lens blank. 17 M343166 Figure 3 is a front elevational view of a first embodiment of a square optical glass lens of the present invention. Figure 4 is a side elevational view of one of the square optical glass lenses of Figure 3. Fig. 5 is a side view showing the first embodiment of the present invention for applying the square optical glass lens to the lens group. Figure 6 is a front elevational view of one of Figure 5. Fig. 7 is a side view showing the first embodiment of the present invention for applying the square optical glass lens to the lens group. Figure 8 is a front elevational view of one of Figure 7. Fig. 9 is a flow chart showing the manufacturing process of the present square optical glass lens (first embodiment). Figure 10 is a front elevational view of a second embodiment of the present inventive square optical glass lens. Figure 11 is a side elevational view of one of the square optical glass lenses of Figure 10. Fig. 12 is a side elevational view showing the second embodiment of the present invention for applying the prismatic optical glass lens to the lens unit. Figure 13 is a front elevational view of one of Figure 12. Fig. 14 is a view showing the mold core of the forming mold provided with a plurality of convex bodies in the third embodiment of the present invention. Fig. 15 is a view showing the mold core of the forming mold provided with a plurality of convex bodies in the third embodiment of the present invention. Figure 16 is a schematic view of a lens blank of a third embodiment of the present invention. Figure 17 is a schematic view showing a third embodiment of the present square optical glass lens. Fig. 18 is a view showing the mold core of the forming mold provided with the elongated convex body in the fourth embodiment of the present invention. M343166 Fig. 19 is a schematic view of a lens blank of the fourth embodiment of the present invention. Figure 20 is a schematic view showing a fourth embodiment of the present square optical glass lens. Fig. 21 is a schematic view showing the mold core of a forming die provided with a plurality of inverted v-shaped elongated strips in the fifth embodiment of the present invention. Fig. 22 is a schematic view showing a lens blank formed by molding a mold of Fig. 21. Fig. 23 is a schematic view showing the mold core of a forming mold provided with a plurality of inverted v-shaped elongated strips in the fifth embodiment of the present invention.
圖24係利用圖23成形模具所模造成形的鏡片毛胚示意圖。 【主要元件符號說明】 1 ·(方形光學玻璃）鏡片（rectangular optical glass lens) 2 ·鏡片毛胚（iens sheet) 11 ·肩部（outer) 12 ·第一光學面（first optical surface) 13 ·第二光學面（second optical surface) 14 ·長條形凹槽（Sfrip groove) 15 ·凹槽（groove) 16 : V 形預刻凹槽（v-type cutting groove) 17 · V 形預刻凹槽（v-type cutting groove) 3 ·鏡頭組（lens set) ·鏡片座（lens holder) 32 ·光闌（diaphragm) 33 ·容腔（cavity) 34 ·突出塊（bump) 4 ·方形玻璃元材（rectangular glass blank) M343166 5 :成形模具（forming mold ) 50 :模穴面 51 :上模仁(upper mold) 52 :下模仁（lower mold) 53 :加熱裝置（heater) 54 :凸體（protrudent part) 55 :長條形凸體 56 :邊緣 57 :外緣 58 :倒 V 型長條凸體（upside-down V-type strip protrusion) 59 :間隙Figure 24 is a schematic view of a lens blank formed by molding using the forming mold of Figure 23. [Description of main component symbols] 1 · (rectangular optical glass lens) 2 · lens blanks (iens sheet) 11 · shoulder (outer) 12 · first optical surface (first optical surface) 13 · Second optical surface 14 · Sfrip groove 15 · Groove 16 : V-type cutting groove 17 · V-shaped pre-groove ( V-type cutting groove) 3 · lens set (lens set) · lens holder (lens holder) 32 · diaphragm (diaphragm) 33 · cavity (cavity) 34 · protruding block (bump) 4 · square glass element (rectangular Glass blank) M343166 5 : forming mold 50 : cavity face 51 : upper mold 52 : lower mold 53 : heater 54 : protrudent part 55: elongated protrusion 56: edge 57: outer edge 58: upside-down V-type strip protrusion 59: gap