1254801 玖、發明說明： 【發明所屬之技術領域】 本發明有關於—種塑膠製圓筒形有槽凸輪，在其内圓筒 表面上δ又有多個槽式凸輪’用以控制透鏡驅動，像是在光 學設備如照相機中的透續 · 逍兄逑、、只又焦（Z00ming)或透鏡對焦 (iocusmg)。 【先前技術】 使用在光學設備諸如照相機的透鏡組中，通常且有一塑 ㈣圓^有槽⑽’含有多個槽式凸輪在其内侧圓筒表 面上wβ有槽凸輪旋轉時，組裝在透鏡圓筒中的透鏡組， 其係設置在圓筒形有槽凸輪中、透過驅動銷或筒邊緣的凸 起部分與槽式凸輪喃合者，是為了對準焦距（對焦）而往復移 動:或根據連續變焦數據用以控制連續變焦；連續變焦數 據經轉譯為凸輪數據後傳送到槽式凸輪。 、：式凸輪係藉塑膠模製法，使用一具有非常複雜建構並 ^ j備置刀裂式芯模滑件的模具，製成在該圓筒體的内 □茼表面上。该所備置分裂式芯模滑件之模具，設計是非 苇的繁複而成本是極度的高昂。 在一次塑膠材料注射之後，即形成一圓筒形有槽凸輪， 有多個槽式凸輪在該圓筒體的内圓筒表面上。於是，必須 將該滑件的芯模中心拉出模具，以便能夠從形成在該圓筒' 版内圓筒表面上的該多個槽式凸輪中撤出該滑件的分裂式 ^模然後必須將該分裂式芯模滑件全部拉出該模具，以 便從該模具中取出該圓筒形有槽凸輪。 O:\90\90516-941110.doc 1254801 圖1及2顯示一典型的變焦 有三個槽式凸ΜΑ έ 形有槽凸輪，其具 組三個槽式凸輪，用以控制第 透鏡群，及另- 槽凸於之展„ 弟—透鏡群。圖3為該圓筒形有 圖顯示設置在内表面上的多個槽式凸輪。 '力4 ^塑膠製作的81筒形有槽凸輪⑴之第皆 奴，及該塑膠材料已注射入該模罝 凸輪⑴已开’、（）中’而该圓筒形有槽 私（丨）已形成在該模具（2)中之情況。 圖5顯示模製該圓筒形有槽凸輪⑴之第二階段， 芯模滑件⑷的芯模中,（3)已遭拉出該模具⑺之情況。、式 圖6顯示模製該圓筒形有槽凸輪⑴之第三階段，及分裂式 芯模構件（5)已被向内拖拉脫出該已形成的槽式凸輪⑷:二 便將該分裂式芯模滑件⑷拉出該圓筒形有槽凸輪⑴之情 況0 圖7顯示模製該圓筒形有槽凸輪〇)之第四階段，及整個分 裂式芯模滑件⑷已拖拉出該模具(2)，留下該模製成的圓筒 形有槽凸輪（1)在該模具（2)中之情況。 圖8顯示模製該圓筒形有槽凸輪（1)之第五（最後）階段，及 忒杈製成含有槽式凸輪（6)在内表面上的圓筒形有槽凸輪〇) 已拉出該模具（2)的情況。 如到目前為止，所提及的模具的建構是非大複雜的，而 且這種類似於用在照相機鏡頭驅動的圓筒形凸輪的零件， 須要極大的精確度，這使得該模具的製作以及塑膠的注射 變得非常困難並費用昂貴。 使用分裂式芯模滑件模具製作的圓筒形有槽凸輪，還有 O:\90\90516-941110.doc 1254801 另一問題。如在圖9-a、9_b、9_c及9_d中所示，該槽式凸輪 無可避免地必須是錐形的，因為該模具的分裂式模芯構件 ⑺㈤6)須是平順地從槽式凸輪⑺中拉出。沒有錐形⑻， ^疋不可能從槽式凸輪⑺中抽出該分裂式模芯構件⑺的。 將一透鏡群⑴）保持在透鏡圓筒（1〇)内中的凸起部分 (9)如圖9_a、9-b、9-c^9-d所示，是嵌插進槽式凸輪⑺ 十的如果有-強烈的振動加給整個變焦透鏡的話，由於 =槽式凸輪⑺的錐形⑻的存在，該凸起部分（9)是报容易地 /月出槽式凸輪（7)的，如在圖1()中所示，而使得整個變焦控 制被卡住，不能動彈。 …二 /極度φ貝亚具有複雜結構的模具；因高度精確需求所 需精細而艱困的塑膠注急 焦控制卡爾形槽=制，”振動叫引起變 尚待解決的問題。所Γ!二 習知圓筒有槽凸輪 斤乂，必須提供一種改進的圓筒形有槽 二、、具有槽式凸輪設置在内圓筒表面上，但在槽式凸 輪中不具任何的錐形，可關單模具製作。 【發明内容】 因此，本發明的一 凸輪，含有槽式凸於，種新型的圓筒式有槽 備置在其内圓筒表面上不昂貴且容易控制的模具， 輪本共-種新型的嶋有槽凸 為達致前述目的太輪，備置在其内圓筒表面上。 代替分裂式芯模滑件明使用較為簡單甚多的模具，以 〜件，而該簡單的模具甚至不用滑件。 O:\90\90516-941110.doc 丄254801 本發明的圓筒式有样&於士 製作摊斗有槽凸輪由兩個管所組成。各管件具有 表作槽式凸輪的部分。該管件 湣杜^ 仵Τ用一不具任何分裂式模芯 而為， 而脸杈和芯模只需上下或來回移動 …、任何的複雜滑行遲動，傻Η 於 丁遂動像疋抽出芯模中心、從槽式凸 輪拉出分裂式模芯構件…等等。 要製作本發明的圓筒式有 頁僧凸輪時，不必使用含有分裂 二：件的模具，因此該槽式凸輪不必成為錐形，而該 I輪可完全平臥並水平平行製作，因此透鏡的凸起部 刀可深深嵌插入該槽式凸於由,Α 出。 式凸輪中，在強烈振動下也不致脫 本發明的一優點是：所使 ^更用的极具，比起習知的圓筒式 有槽凸輪來，是遠較符罝 .0 ^ 早，而因此模具的成本極為低廉， 而且易於製作。本發明的一 悛點疋·该改進的圓筒式有 槽凸輪的槽式凸輪不是 ，隹形的，其將透鏡保持圓筒的凸起 #分，緊貼地保持住，縱妙女％ u l 、、、有強烈的振動加在該整個透鏡 上，也不致使其滑出該槽式凸輪。 【實施方式】 圖11顯示本發明一用於辦 於、交焦透鏡的較佳具體實施例，苴 係與變焦透鏡元件及复h f^ J其 φ ·、，骷 /、匕ν件，組衣入一變焦透鏡模組 中’亚顯：該變焦透鏡在於廣角攝影位置上的情況。 么a料 本么月用於變焦透鏡的較佳具體實施例，其 係與變焦透鏡元件及发h + 、 ,.,% /、匕苓件，組裝入一變焦透鏡模組 ^ ^ ......在於遠距及廣角攝影的中間變焦位 置上的情況。 O:\90\90516-941110.doc 1254801 圖1 3顯示本發明一用於變焦玄 用於麦焦透鏡的較佳具體實施例，其BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic cylindrical grooved cam having a plurality of grooved cams δ on its inner cylindrical surface for controlling lens driving. It is like a continuation in an optical device such as a camera, a singularity, a focus (Z00ming) or a lens focus (iocusmg). [Prior Art] In a lens group used in an optical device such as a camera, usually, there is a plastic (four) circular groove (10)' containing a plurality of grooved cams which are assembled on the inner cylindrical surface of the wβ grooved cam, assembled in the lens circle a lens group in the cylinder, which is disposed in the cylindrical grooved cam, passes through the convex portion of the driving pin or the edge of the barrel and the grooved cam is reciprocated for alignment (focus): or according to continuous The zoom data is used to control the continuous zoom; the continuous zoom data is translated into cam data and transmitted to the slot cam. The :-type cam is formed on the inner surface of the cylindrical body by a plastic molding method using a mold having a very complicated construction and preparing a split-core mold slide. The molds for the split-core mandrel slides are designed to be cumbersome and extremely costly. After the injection of the plastic material, a cylindrical grooved cam is formed with a plurality of grooved cams on the inner cylindrical surface of the cylinder. Thus, the center of the mandrel of the slider must be pulled out of the mold so that the split mold of the slider can be withdrawn from the plurality of grooved cams formed on the cylinder surface of the cylinder's plate and then must The split mandrel slide is pulled all the way out of the mold to remove the cylindrical grooved cam from the mold. O:\90\90516-941110.doc 1254801 Figures 1 and 2 show a typical zoom with three grooved ΜΑ έ shaped grooved cams with three grooved cams for controlling the lens group and - The groove is convex in the exhibition „ Brother—Lens group. Figure 3 shows the cylindrical grooved cam with a number of grooved cams on the inner surface. 'force 4 ^ 81-shaped grooved cam (1) made of plastic All the slaves, and the plastic material has been injected into the mold cam (1) has opened ', () in the ' and the cylindrical groove has been formed in the mold (2). Figure 5 shows the mold The second stage of the cylindrical grooved cam (1), the core mold of the core mold slider (4), (3) has been pulled out of the mold (7). Figure 6 shows the molding of the cylindrical grooved The third stage of the cam (1), and the split mandrel member (5) have been pulled inwardly to pull out the formed grooved cam (4): the second split mandrel slide (4) is pulled out of the cylindrical shape Case of slot cam (1) 0 Figure 7 shows the fourth stage of molding the cylindrical grooved cam 〇), and the entire split mandrel slide (4) has been pulled out of the mold (2), leaving the The cylindrical grooved cam (1) is formed in the mold (2). Figure 8 shows the fifth (final) stage of molding the cylindrical grooved cam (1), and made of tantalum a cylindrical grooved cam 含有 having a grooved cam (6) on the inner surface) has been pulled out of the mold (2). As of now, the construction of the mentioned mold is not complicated, and this A part similar to a cylindrical cam driven by a camera lens requires great precision, which makes the making of the mold and the injection of the plastic very difficult and expensive. Using a split mandrel slide mold Cylindrical grooved cam, and O:\90\90516-941110.doc 1254801 Another problem. As shown in Figures 9-a, 9_b, 9_c and 9_d, the grooved cam must inevitably be Conical, because the split core member (7) (5) 6) of the mold must be smoothly pulled out of the grooved cam (7). Without the taper (8), it is impossible to extract the split core member from the grooved cam (7). (7) A convex portion (9) in which a lens group (1) is held in a lens cylinder (1) As shown in Fig. 9_a, 9-b, 9-c^9-d, it is inserted into the grooved cam (7). If there is - strong vibration applied to the entire zoom lens, due to the taper of the grooved cam (7) (8) The presence of the raised portion (9) is reported as easy/monthly out of the slotted cam (7), as shown in Figure 1 (), so that the entire zoom control is stuck and cannot move. ... Extremely φ Beyer has a complex structure of the mold; due to the high precision requirements of the need for fine and difficult plastic injection of the rapid focus control of the Karl-shaped groove = system, "vibration is called to cause problems to be solved. The second known cylinder has a grooved cam, and must provide an improved cylindrical grooved two. The grooved cam is disposed on the inner cylinder surface, but does not have any taper in the grooved cam. , can be closed single mold production. SUMMARY OF THE INVENTION Accordingly, a cam of the present invention includes a grooved projection, a novel cylindrical grooved mold which is inexpensive and easy to control on the inner cylindrical surface thereof, and a novel type of 嶋A trough is formed to achieve the aforementioned purpose, and is placed on the inner cylindrical surface thereof. Instead of a split mandrel slide, it is simpler to use a much simpler mold, with ~ pieces, and the simple mold does not even use a slide. O:\90\90516-941110.doc 丄254801 The cylindrical sample of the present invention & Yu Shi made a bucket with a grooved cam consisting of two tubes. Each of the tubular members has a portion that serves as a trough cam. The pipe fittings are made of a split core without the split core, and the face and the core die only need to move up and down or back and forth..., any complicated sliding delay, stupid to Ding Yu moving the image to extract the mandrel Center, pull out the split core member from the slot cam...etc. When the cylindrical web cam of the present invention is to be produced, it is not necessary to use a mold containing a splitting member, so that the trough cam does not have to be tapered, and the I wheel can be completely flat and horizontally parallel, so that the lens The raised blade can be deeply inserted into the groove to protrude from the groove. One advantage of the present invention in the case of a strong cam that does not deviate from the strong vibration is that the more used poles are farther than the conventional cylindrical grooved cams. Therefore, the cost of the mold is extremely low and easy to manufacture. A further aspect of the present invention is that the improved cylindrical grooved cam grooved cam is not 隹-shaped, which holds the lens in the convexity of the cylinder, and closely holds it. Strong vibrations are applied to the entire lens, and they are not caused to slide out of the grooved cam. [Embodiment] FIG. 11 shows a preferred embodiment of the present invention for a focusing lens, a slewing system and a zoom lens element, and a φ ·, 骷, 匕 件, Into a zoom lens module 'sub-display: the zoom lens is in the wide-angle shooting position. A preferred embodiment of the lens for the zoom lens, which is coupled with the zoom lens element and the hair h + , , . , % /, ... ...is the case at the intermediate zoom position of telephoto and wide-angle photography. O:\90\90516-941110.doc 1254801 FIG. 13 shows a preferred embodiment of the present invention for zooming a lens for a wheat focus lens.
輪（1 2) ’其係用該三管件組合在一起所成。 圖16為本發明的圓筒形有槽凸輪〇2)，連同置備在其内圓 筒表面上的槽式凸輪的典型曲線的展開。該上槽式凸輪 係第一透鏡群（18)(圖11)的透鏡圓筒〇7)(圖u)所需要；而 該下（第二）槽式凸輪（19)係第二透鏡群（2_u)的透鏡圓 筒（20)(圖11)所需要。 如在第11、12及13中所示，該第一及第二透鏡群（18及21) 是組合在各個透鏡圓筒（17及20)中，而設置在該透鏡圓筒 (17及20)邊緣上的凸起部分（22)(圖u)是與本發明圓筒形有 槽凸輪（12)的槽式凸輪（16及19)嚙合，圖23_&及23讣也有顯 圖17顯示上内管（13)。該上内管（13)具有三個導牆（23)設 置在該上内管（13)的下邊緣上，而該上内管（13)的導牆（23) 相當於該第一槽式凸輪（16)(圖16)的上凸輪線，即如圖Μ中 所示的曲線（24)。應加以強調的，該上内管（1 3)具有兩個導 牆（23)也是可能的。 O:\90\90516-941110.doc -10- 1254801 圖18顯示中央外管（14)。該 Γ25) ^ ^ (14)具有二個上導牆 ^ ^在該中央外管（14)内側表面上的凸出部分的上邊 2該中央外管（14)的上導牆（25)相當於第—槽式凸輪 凸輪線’即如圖16中所示的曲線（26)。應加以強調 ，’違中央外管（14)具有兩個上導和3)也是可能的。 當將上内管（U)嵌插入中央外管（14)的上部中時，各設置 =該上内管（13)下邊緣上的導牆（23)，是和其設置在中央外 )内表面上凸起部分的上邊緣上的相對部分的導牆（Μ) '、、占配。在—起，湊成三個槽式凸輪。該槽式凸輪（16)是由 設置在上内管⑼下邊緣的上導牆（25)，和設置在該上外管 (14)内表面上的凸起部分上邊緣上的下導牆㈣所構成，如 圖19所示。 :亥中央外管⑽而且還有三個τ導牆(27)設置在該中央 外管(14)的内表面上凸起部分的下邊緣上，而該中央外管 ⑽的下導牆（27)相當於該下（第二）槽式凸輪〇9)的上凸輪 線’亦即如圖16中所示的直線（28)。應加以強調的，該中: 外管（14)具有兩個下導牆（27)也是可能的。 圖20顯示下内管（15)。該下内管〇5)具有三個導牆㈣設 置在該下时（15)的上邊緣上，而該下内管（15)的導牆⑽ 相當於該下（第二）槽式凸輪（19)的下凸輪線，即圖Μ中所示 的直線⑼。應加以強調的’該下内管〇5)具有兩個導牆 (30) ’也是可能的。 當將下内管（15)嵌插入中央外管（14)的下部中時，各設置 在該下内管（15)的上邊緣上的導牆（3G)，是和其設置在中央 O:\90\90516-941110.doc -11- 1254801 (4)内表面上凸起部分下邊緣上的相對部分的導牆(27) ”貝配合在ϋ成三個槽式凸輪。該槽式凸輪⑽是由 :置在下内管⑽上邊緣上的上導牆(3〇)，和設置在該中央 ^⑹内表面凸起部分下邊緣上的―導牆 圖21所示。 斤如圖15所示，當該三管件，g(7 ·· _上内管（13)、一中央外 和—下内管（15)組合在_起時，即形成本發明的一完 全的圓筒形有槽凸輪（12)，有槽式凸輪設置在組合後的圓筒 幵:有槽凸輪（12)的内圓筒表面上。圖15也顯示該兩組槽式凸 輪W成在該内側表面上。該第_(上）組槽式凸輪（16)是由 上内& (13)的下邊緣導牆（23)，和中央外管（14)的上邊緣導 另回（25)所形成，而該第二⑺組槽式凸輪9)是由中央外管 ⑽的下邊緣導牆（27)，和下内管（15)的上邊緣導牆⑽所 形成。 如此，本發明的圓筒形有槽凸輪（12)，含有槽式凸輪（16 及丨9) δ又置在内圓筒表面上的，可使用三個簡單管件製備， 而對於該三管件所使用的模具，Μ常簡I而無任何分裂 式芯模滑件或類似物。圖22-a及22-b顯示此類用於製作該等 管件的簡單模具結構之一實例。 因為此類模具沒有任何内分裂式滑件，就槽式凸輪而 言，不必是錐狀的，而是平坦又平直的，而透鏡保持圓筒 (17及20)(圖U)的凸起部分（22)可逕直嵌插進該槽式凸輪 (16及19)中，而不致有任何因錐面所引生的餘隙，如圖 及23-b所示。 O:\90\90516-941110.doc -12- 1254801 〜要有2，、且以上的凸輪，藉增加管件數目及加一外管，是可 能的。圖24顯示本發明的-變焦圓筒形槽式凸輪具有4組槽 輪（16 19、32及33) ’這是藉再增加兩個管件（34及35) 和一另加外管（36)而製成。 【圖式簡單說明】 圖1為一習知圓筒形有槽凸輪之透視圖； 圖2為習知圓筒形有槽凸輪之橫截面透視圖； 圖3為一習知圓筒形有槽凸輪之展開，以示設在其内表面 上的多個槽式凸輪； 圖為用於一習知圓筒形有槽凸輪的模具的橫截面視 圖用以顯示模製的第一階段； 圖5為一用於一習知圓筒形有槽凸輪的模具的橫截面視 圖，用以顯示模製的第二階段； 圖6為用於一習知圓筒形有槽凸輪的模具的橫截面視 圖用以顯示模製的第三階段； 圖7為一用於一習知圓筒形有槽凸輪的模具的橫截面視 圖，用以顯示模製的第四階段； 圖8為用於一習知圓筒形有槽凸輪的模具的橫截面視 圖，用以顯示模製的第五（最後）階段； ^ 為礼式凸輪與一習知圓筒形有槽凸輪的透鏡保 持座的凸起部分相嚙合之橫截面視圖； 圖為槽式凸輪和一習知圓筒形有槽凸輪的透鏡保 、a、凸起邛分之橫截面視圖；顯示為一錐形槽凸輪； 圖9 c為一使用習知圓筒形有槽凸輪的透鏡模組之頂視 〇:\90\90516-9411l0.d〇c -13- 1254801 圖； 筒形有槽凸輪的透鏡模組之橫截 圖9-d為一使用習知圓 面視圖； 知槽式凸輪之剖視圖，顯示一透 凸起部分因給與該锈於a t 透鏡的振動而脫出該槽式凸輪； 圖11為本發明_ h ^ & 、 用於交焦透鏡的較佳具體實施例之橫截 面視圖，顯示並尤痒 只不/、在廣角攝影位置； ^為本么月用於變焦透鏡的較佳具體實施例之橫截 面視圖，顯示其在遠距及廣角攝影位置之間的中間變焦位 置； 圖13為本發明—用於變焦透鏡的較佳具體實施例之橫截 面視圖，顯示其在遠距攝影位置； 圖14為本發明—用於變焦透鏡的較佳具體實施例之分解 的橫截面透視圖； 圖15為本發明—用於變线鏡的較佳具體實施例之橫截 面視圖； 圖16為本發明一用於_隹；类籍μ & 文“、、透鏡的車父佳具體實施例之展 開； 圖17為本發明一用 管之透視圖； 於蚤焦透鏡的較佳具體實施例之上内 具體實施例之中央 具體實施例之一上 構件之橫截面透視 圖18為本發明一用於變焦透鏡的較佳 外管之透視圖； 圖19為本發明一用於變焦透鏡的較佳 内管和一中央外管組合在一起成為— O:\90\90516-941110.doc -14- 1254801The wheel (1 2) ' is formed by combining the three pipe members. Figure 16 is a development of a typical curve of a cylindrical grooved cam 〇 2) of the present invention, together with a grooved cam provided on the inner cylindrical surface thereof. The upper slot cam is required for the lens barrel 7) (Fig. 9) of the first lens group (18) (Fig. 11); and the lower (second) groove cam (19) is the second lens group ( 2_u) required for the lens cylinder (20) (Fig. 11). As shown in the 11, 12 and 13, the first and second lens groups (18 and 21) are combined in the respective lens cylinders (17 and 20) and disposed in the lens cylinders (17 and 20). The raised portion (22) on the edge (Fig. u) is engaged with the grooved cams (16 and 19) of the cylindrical grooved cam (12) of the present invention, and Figs. 23_& and 23讣 are also shown in Fig. 17 Inner tube (13). The upper inner tube (13) has three guide walls (23) disposed on a lower edge of the upper inner tube (13), and the guide wall (23) of the upper inner tube (13) is equivalent to the first trough The upper cam line of the cam (16) (Fig. 16), that is, the curve (24) shown in Fig. 。. It should be emphasized that it is also possible for the upper inner tube (13) to have two guide walls (23). O:\90\90516-941110.doc -10- 1254801 Figure 18 shows the central outer tube (14). The 导 25) ^ ^ (14) has two upper guide walls ^ ^ the upper side of the convex portion on the inner side surface of the central outer tube (14) 2 the upper guide wall (25) of the central outer tube (14) is equivalent The first-groove cam cam line 'is a curve (26) as shown in FIG. It should be emphasized that it is also possible to violate the central authority (14) with two leads and 3). When the upper inner tube (U) is inserted into the upper portion of the central outer tube (14), each setting = the guide wall (23) on the lower edge of the upper inner tube (13) is disposed inside the center The guide wall (Μ) of the opposite portion on the upper edge of the convex portion on the surface is occupied. In the beginning, make up three grooved cams. The grooved cam (16) is an upper guide wall (25) disposed at a lower edge of the upper inner tube (9), and a lower guide wall (4) disposed on an upper edge of the convex portion on the inner surface of the upper outer tube (14) The composition is as shown in FIG. : the central central outer tube (10) and three τ guide walls (27) are disposed on the lower edge of the convex portion on the inner surface of the central outer tube (14), and the lower guide wall (27) of the central outer tube (10) The upper cam line 'corresponding to the lower (second) grooved cam 〇 9) is a straight line (28) as shown in FIG. It should be emphasized that it is also possible for the outer tube (14) to have two lower guide walls (27). Figure 20 shows the lower inner tube (15). The lower inner tube 5) has three guide walls (four) disposed on the upper edge of the lower portion (15), and the guide wall (10) of the lower inner tube (15) corresponds to the lower (second) slot cam ( 19) The lower cam line, which is the straight line (9) shown in the figure. It is also possible that the lower inner tube 5, which has to be emphasized, has two guide walls (30)'. When the lower inner tube (15) is inserted into the lower portion of the central outer tube (14), the guide walls (3G) each disposed on the upper edge of the lower inner tube (15) are disposed at the center O: 。 。 。 。 。 。 It is composed of: an upper guide wall (3〇) placed on the upper edge of the lower inner tube (10), and a guide wall shown on the lower edge of the convex portion of the inner surface of the central portion (6) as shown in Fig. 21. When the three tubular members, g (7 ··_ upper inner tube (13), one central outer and lower inner tube (15) are combined, form a complete cylindrical grooved cam of the present invention. (12) The grooved cam is disposed on the combined cylindrical bore: the inner cylindrical surface of the grooved cam (12). Fig. 15 also shows that the two sets of slotted cams W are formed on the inner side surface. The _ (top) group of grooved cams (16) is formed by the lower edge guide wall (23) of the upper inner & (13) and the upper edge of the central outer tube (14) is guided back (25), and The second (7) group of grooved cams 9) is made up of a central outer tube (10) The lower edge guide wall (27) and the upper edge guide wall (10) of the lower inner tube (15) are formed. Thus, the cylindrical grooved cam (12) of the present invention, including grooved cams (16 and 丨9) The δ is again placed on the surface of the inner cylinder and can be prepared using three simple tubes, and for the mold used for the three tubes, it is often simple without any split core slide or the like. Figure 22-a And 22-b show an example of such a simple mold structure for making the tubes. Because such molds do not have any internal split sliders, the grooved cams do not have to be tapered, but flat and Straight, and the convex portion (22) of the lens holding cylinders (17 and 20) (Fig. U) can be inserted straight into the grooved cams (16 and 19) without any introduction due to the tapered surface The gap of the life, as shown in Figure 23-b. O:\90\90516-941110.doc -12- 1254801 ~ There must be 2, and above the cam, by increasing the number of tubes and adding an outer tube, is It is possible that Fig. 24 shows that the zoom cylindrical slot cam of the present invention has four sets of sheaves (16 19, 32 and 33) 'this is by adding two more fittings (34 and 35) and one additional BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a conventional cylindrical grooved cam; FIG. 2 is a cross-sectional perspective view of a conventional cylindrical grooved cam; A conventional cylindrical grooved cam is unfolded to show a plurality of grooved cams disposed on an inner surface thereof; and the figure is a cross-sectional view of a mold for a conventional cylindrical grooved cam for display The first stage of molding; Figure 5 is a cross-sectional view of a mold for a conventional cylindrical grooved cam for showing the second stage of molding; Figure 6 is for a conventional cylindrical shape A cross-sectional view of a mold having a grooved cam for showing a third stage of molding; and Figure 7 is a cross-sectional view of a mold for a conventional cylindrical grooved cam for showing the fourth stage of molding Figure 8 is a cross-sectional view of a mold for a conventional cylindrical grooved cam for showing the fifth (final) stage of molding; ^ for a court cam and a conventional cylindrical grooved cam Cross-sectional view of the convex portion of the lens holder engaged; the picture shows a grooved cam and a conventional cylindrical grooved cam A cross-sectional view of the mirror, a, and convex segments; shown as a tapered grooved cam; Figure 9c is a top view of a lens module using a conventional cylindrical grooved cam: \90\90516- 9411l0.d〇c -13- 1254801 Fig. 9-d is a cross-sectional view of a lens module with a cylindrical grooved cam; a cross-sectional view of the slotted cam, showing a through-bump portion And the grooved cam is detached from the lenticular vibration of the at lens; FIG. 11 is a cross-sectional view of a preferred embodiment of the _h ^ & for a focal lens of the present invention, showing that it is only itch/not In the wide-angle shooting position; ^ is a cross-sectional view of a preferred embodiment of the zoom lens for the month, showing its intermediate zoom position between the long-range and wide-angle shooting positions; FIG. 13 is the present invention - for A cross-sectional view of a preferred embodiment of the zoom lens, shown in a telephoto position; FIG. 14 is an exploded cross-sectional perspective view of a preferred embodiment of the zoom lens of the present invention; - a cross-sectional view of a preferred embodiment for a line mirror; Figure 16 The present invention is used for the development of a specific embodiment of a lens of the present invention; FIG. 17 is a perspective view of a tube for use in the present invention; FIG. 18 is a perspective view of a preferred outer tube for a zoom lens according to the present invention; FIG. 19 is a perspective view of a zoom lens according to the present invention; The inner tube and the central outer tube are combined to form - O:\90\90516-941110.doc -14- 1254801
圖20為本發明—用於變焦透鏡的較佳具體實施例之下内 管之透視圖； ‘ 圖21為本發明一用於變焦透鏡的較佳具體實施例之一下 内官和一中央外管組合在一起成為一構件之橫截面透視 圖； 圖22-a為準備使用纟本發明一#變焦透鏡使用的較佳且 體實施例之一模具的橫截面視圖； 八 圖U-b為準備使用於本發明—供變焦透鏡使用之較佳具 :實“列t &具的k截面視圖’顯示一模塑製成的圓筒 形有槽凸輪正從該模具中移出； 圖2 3 - a為本發明一較佳具體實施例的槽式 持座的凸起部分之橫截面視圖； 圖23-b為本發明一較佳具體實施例的槽式 保持座的凸起部分緊密唾合之橫截面視圖； 凸輪和透鏡保 凸輪，和透鏡 圖23-c顯示本發明一 平乂1土具體貫細例的一蠻 之頂視圖及㈣部 透鏡杈 、 |刀之檢截面視圖；及 圖24為本發明_鲂 仏，、體實施例的圓筒形右播Π U 截面視圖；兮圓饩V士 有槽凸輪之 同形有槽凸輪 面上。 有四組槽式凸輪在其内 【圖式代表符號說明】 圓筒形有槽凸輪 模具 心模中心 〇:\90\90516-941110.d〇c -15- 1254801 4 分裂式芯模滑件 5 分裂式芯模構件 6、7、32、33 槽式凸輪 8 錐形 9 ^ 22 凸起部分 10、17、20 透鏡(保持)圓筒 11 透鏡群 13 上内管 14 中央外管 15 下内管 16 上槽式凸輪 18 第一透鏡群 19 下(第二)槽式凸輪 21 第二透鏡群 23、27 下(邊緣)導牆 24、26 曲線 25、30 上(邊緣)導牆 28、31 直線 34、35 管件 36 另加外管 O:\90\90516-941110.doc -16-Figure 20 is a perspective view of the inner tube of the preferred embodiment of the present invention for use in a zoom lens; Figure 21 is a perspective view of a preferred embodiment of the zoom lens of the present invention. Figure 22-a is a cross-sectional view of a mold which is preferably used in one of the preferred embodiments of the present invention; FIG. 22-a is a cross-sectional view of a mold of a preferred embodiment of the present invention; Invention - a preferred tool for use with a zoom lens: a solid "column view of a column t & with a cylindrically grooved cam being molded out of the mold; Figure 2 3 - a BRIEF DESCRIPTION OF THE DRAWINGS FIG. 23-b is a cross-sectional view of a convex portion of a grooved holder in a preferred embodiment of the present invention; FIG. ; cam and lens retaining cam, and lens Figure 23-c shows a top view of a flattened concrete of the present invention and a cross-sectional view of the (four) lens 杈, | knife; and Figure 24 is a鲂仏,, the cylindrical right-handed Π U section of the embodiment兮 饩 饩 V 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有 有941110.d〇c -15- 1254801 4 Split mandrel slide 5 Split mandrel member 6, 7, 32, 33 Grooved cam 8 Tapered 9 ^ 22 Raised portion 10, 17, 20 Lens (hold) Cylinder 11 lens group 13 upper inner tube 14 central outer tube 15 lower inner tube 16 upper grooved cam 18 first lens group 19 lower (second) grooved cam 21 second lens group 23, 27 lower (edge) guide wall 24, 26 Curve 25, 30 Upper (edge) Guide wall 28, 31 Straight line 34, 35 Pipe fitting 36 Additional outer pipe O:\90\90516-941110.doc -16-