TW202109110A - Automatic lens focusing driving apparatus disposing a lens frame with a guide pin in an outer frame - Google Patents
Automatic lens focusing driving apparatus disposing a lens frame with a guide pin in an outer frame Download PDFInfo
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本發明涉及一種鏡頭自動對焦驅動裝置,特別是在自動對焦時更為滑順的結構。The invention relates to a lens auto-focusing driving device, in particular to a smoother structure during auto-focusing.
在諸如照相機等具有透鏡的攝影裝置中,在執行拍攝操作時需要移動透鏡以改變圖像的高次諧波成分(對焦),並且提供了執行自動對焦的功能。In a photographing device such as a camera with a lens, it is necessary to move the lens to change the higher harmonic components (focus) of the image when performing a photographing operation, and a function to perform autofocus is provided.
習知的所述攝影裝置的對焦係通過自動的驅動模組來完成,例如,在驅動模組中使用藉由溫度變化產生變形的形狀記憶合金線(Shape memory alloy, SMA)來驅動鏡架相對於外框往預定的方向移動以對焦,並且利用彈性元件使鏡架往原位方向移動;亦即,通過具有形狀記憶合金線的驅動模組和彈性元件的作用使安裝了透鏡模組的鏡架可以相對於外框往復移動以自動對焦。The focus of the conventional photographing device is accomplished by an automatic drive module. For example, a shape memory alloy (SMA) wire deformed by temperature changes is used in the drive module to drive the lens frame relative to each other. The outer frame moves in a predetermined direction to focus, and the elastic element is used to move the lens frame toward the original position; that is, the lens module mounted lens module is installed through the action of the drive module with the shape memory alloy wire and the elastic element The frame can be moved back and forth relative to the outer frame to automatically focus.
所述記憶合金線具有被通以電流加熱後可以產生形變以縮短長度,當不通以電流時自然地伸展至原來長度的特性,並且當調整電流量以調整熱量時可以調整其伸長量。所述形狀記憶合金線利用通電時產生的電阻來加熱是已知的技術;因此,通過控制形狀記憶合金線的通電,同時監測形狀記憶合金線的電阻,可以控制鏡架移動至對焦位置。The memory alloy wire has the characteristics of being deformed to shorten the length after being heated by the current, and naturally stretch to the original length when the current is not passed, and the elongation can be adjusted when the current is adjusted to adjust the heat. It is a known technology that the shape memory alloy wire is heated by the resistance generated when it is energized; therefore, by controlling the energization of the shape memory alloy wire and monitoring the resistance of the shape memory alloy wire at the same time, the lens frame can be controlled to move to the focusing position.
中華民國公開第201435466號專利揭露的自動對焦裝置,係包含可往復動作滑動地收容在固定外框(HF)內的鏡架(LC),該往復動作係由包括至少一V-形形狀記憶合金線(SW)的致動器提供,該鏡架(LC)設有嵌入在角凸起(CP)中且其端收容在分別形成在該外框(HF)中及在底板(BP)中之襯套孔(BH)內的導針(GP)。The autofocus device disclosed in the Republic of China Patent No. 201435466 includes a lens frame (LC) slidably housed in a fixed outer frame (HF) in a reciprocating motion, and the reciprocating motion is composed of at least one V-shaped shape memory alloy The actuator of the wire (SW) is provided, and the frame (LC) is provided with embedded in the corner protrusion (CP) and its ends are accommodated in the outer frame (HF) and the bottom plate (BP), respectively. The guide pin (GP) in the bushing hole (BH).
本發明的目的在於提供一種使鏡頭自動對焦驅動裝置可以更滑順地自動對焦,且結構更為簡潔的結構。The object of the present invention is to provide a structure that enables a lens auto-focus driving device to auto-focus more smoothly and has a simpler structure.
本發明提供的鏡頭自動對焦驅動裝置,可以包括:一外框,具有一容置空間;一鏡架,其外側可以設置一角凸起,該角凸起設置一導針,該鏡架設置於該外框的該容置空間中,使得鏡架可以沿著光軸的軸向方向和該外框相對移動;一致動器,包含一形狀記憶合金線,該形狀記憶合金線連接該外框與該鏡架,該形狀記憶合金線被通電後產生熱變形而驅動該鏡架相對於該外框移動;一彈性元件,設置在鄰接該導針的該角凸起上,當該鏡架受到該致動器驅動移位後使該彈性元件儲存彈力,當該致動器解除對該鏡架的驅動後,該彈性元件對該鏡架施予該儲存的彈力以使該鏡架往原位方向移動;一限制元件,具有至少一對導柱,該限制元件設置在該外框上並鄰接該導針的位置;以及複數個滾珠,設置在該等導柱與該導針所包圍的空間周圍,並且與該導針及該導柱的表面可滾動地接觸。當鏡架被形狀記憶合金線驅動相對於外框軸向移動的同時使該等滾珠在導針與導柱之間相對滾動,使得導針的旋轉更為滑順、穩定,且整體結構更為簡潔。The lens auto-focus driving device provided by the present invention may include: an outer frame with an accommodating space; a lens frame on which a corner protrusion can be arranged on the outer side, and a guide pin is arranged on the corner protrusion, and the lens frame is arranged on the lens frame. The accommodating space of the outer frame allows the frame to move relative to the outer frame along the axial direction of the optical axis; the actuator includes a shape memory alloy wire that connects the outer frame and the outer frame The shape memory alloy wire is energized to produce thermal deformation to drive the frame to move relative to the outer frame; an elastic element is arranged on the corner protrusion adjacent to the guide pin, when the frame is subjected to the deformation After the actuator is driven and displaced, the elastic element stores the elastic force. When the actuator releases the drive of the frame, the elastic element applies the stored elastic force to the frame to move the frame toward the original position. A restriction element having at least a pair of guide posts, the restriction element is arranged on the outer frame and adjacent to the position of the guide pin; and a plurality of balls are arranged around the space enclosed by the guide posts and the guide pin, And it is in rolling contact with the surface of the guide pin and the guide post. When the frame is driven by the shape memory alloy wire to move axially relative to the outer frame, the balls are relatively rolled between the guide pin and the guide post, so that the rotation of the guide pin is smoother and more stable, and the overall structure is more smooth. concise.
較佳者,本發明可以進一步包括一底板,該底板重疊地設於外框的外部底面,使得設置在該等導柱與該導針所包圍的空間的滾珠受到限制,以避免滾珠從下方脫離該空間。Preferably, the present invention may further include a bottom plate which is overlappedly arranged on the outer bottom surface of the outer frame, so that the balls arranged in the space enclosed by the guide posts and the guide pins are restricted to prevent the balls from falling off from below The space.
在一實施例中,本發明可以在鏡架的角凸起設置一嵌合孔,並且將導針嵌合固定於該嵌合孔中,使該導針相對兩端延伸出該角凸起。In one embodiment, in the present invention, a fitting hole can be provided in the corner protrusion of the frame, and the guide pin can be fitted and fixed in the fitting hole so that the opposite ends of the guide pin extend out of the corner protrusion.
在另一實施例中,本發明可以在鏡架的角凸起以銲接方式固定該導針。In another embodiment, the present invention can fix the guide pin on the corner protrusion of the frame by welding.
較佳者,本發明可以在該等導柱的外徑設有沿著軸向延伸的一凹部,並且將該等滾珠限制在該凹部的位置,使得滾珠可以穩定地在導針和導柱之間相對滾動。Preferably, in the present invention, a concave portion extending in the axial direction may be provided on the outer diameter of the guide pins, and the balls are restricted at the position of the concave portion, so that the balls can be stably located between the guide pin and the guide pin. Scroll relative to each other.
在一實施例中,該限制元件可以通過至少一固定元件被固定於該外框上。In an embodiment, the limiting element may be fixed to the outer frame by at least one fixing element.
在另一實施例中,該限制元件可以被銲接固定於該外框上。In another embodiment, the restricting element may be welded and fixed to the outer frame.
在另一實施例中,該限制元件的一對導柱的上端之間可以設置一連接板,使得設置在該等導柱與該導針所包圍的空間的滾珠受到限制,以避免滾珠從上方脫離該空間。In another embodiment, a connecting plate may be provided between the upper ends of the pair of guide posts of the restricting element, so that the balls arranged in the space enclosed by the guide posts and the guide pins are restricted, so as to prevent the balls from being moved from above. Get out of this space.
較佳者,本發明可以在該外框的二個不同位置分別設置一夾合部;該角凸起設有一階級部;以及該形狀記憶合金線為V形狀的線材,該形狀記憶合金線的V形兩端係分別嵌合於該二個夾合部,且該V形的兩端之間的尖部內側係配合於該階級部,藉以完成通過形狀記憶合金線將鏡架連接於外框並可對鏡架驅動的結構。Preferably, in the present invention, a clamping portion can be provided at two different positions of the outer frame; the corner protrusion is provided with a step portion; and the shape memory alloy wire is a V-shaped wire, and the shape memory alloy wire Both ends of the V shape are respectively fitted into the two clamping parts, and the inner side of the tip part between the two ends of the V shape is fitted to the step part, thereby completing the connection of the frame to the outer frame through the shape memory alloy wire And can drive the structure of the frame.
本發明藉由前述的導針、導柱與滾珠的彼此組合結構,可以使得導針隨著鏡架移動時受到滾珠保持而更為穩定,並且滾珠與導針及導柱之間係相對地滾動,致使其彼此之間係產生滾動摩擦而得以滑順地移動。The present invention uses the aforementioned combination structure of the guide pin, the guide pin and the ball to make the guide pin more stable by being held by the ball when the frame moves, and the ball, the guide pin and the guide pin roll relatively , Causing them to produce rolling friction between each other and move smoothly.
以下配合圖示及元件符號對本發明之實施方式做更詳細的說明,俾使熟習該項技藝者在研讀本說明書後能據以實施。The following is a more detailed description of the implementation of the present invention in conjunction with the diagrams and component symbols, so that those who are familiar with the art can implement it after studying this specification.
圖1為顯示本發明鏡頭自動對焦驅動裝置之整體外觀結構的立體示意圖;圖2為顯示本發明鏡頭自動對焦驅動裝置之整體外觀結構的俯視平面示意圖;圖3為顯示本發明鏡頭自動對焦驅動裝置之主要元件組合關係之立體分解圖;圖4為沿圖2之Ⅳ-Ⅳ線的剖面圖;圖5為沿圖2之Ⅴ-Ⅴ線的剖面圖;圖6為顯示本發明鏡頭自動對焦驅動裝置之導柱以固定元件被固定在外框,且導針係嵌設於角凸起之實施例立體示意圖;圖7為顯示本發明鏡頭自動對焦驅動裝置之導柱以銲接方式被固定在外框,且導針係嵌設於角凸起之實施例立體示意圖;圖8為顯示本發明鏡頭自動對焦驅動裝置之導柱以固定元件被固定在外框,且導針係以銲接方式被固定於角凸起之實施例立體示意圖;以及圖9為顯示本發明鏡頭自動對焦驅動裝置之導柱以銲接方式被固定在外框,且導針亦以銲接方式被固定於角凸起之實施例立體示意圖。1 is a perspective schematic diagram showing the overall appearance structure of the lens autofocus driving device of the present invention; FIG. 2 is a top plan schematic diagram showing the overall appearance structure of the lens autofocus driving device of the present invention; FIG. 3 is a schematic diagram showing the overall appearance structure of the lens autofocus driving device of the present invention Fig. 4 is a sectional view along the line IV-IV of Fig. 2; Fig. 5 is a sectional view along the line Ⅴ-Ⅴ of Fig. 2; Fig. 6 is a view showing the auto-focus driving of the lens of the present invention The guide post of the device is fixed to the outer frame by a fixing element, and the guide pin is embedded in the corner projection; Fig. 7 shows the guide post of the lens auto-focus driving device of the present invention being fixed to the outer frame by welding. And the guide pin is embedded in the three-dimensional schematic diagram of the embodiment of the corner projection; FIG. 8 shows that the guide post of the lens auto-focus driving device of the present invention is fixed to the outer frame by the fixing element, and the guide pin is fixed to the corner projection by welding Fig. 9 is a perspective view showing an embodiment in which the guide post of the lens auto-focus driving device of the present invention is fixed to the outer frame by welding, and the guide pin is also fixed on the corner protrusion by welding.
如圖1至圖5所示,本發明提供的鏡頭自動對焦驅動裝置,其較佳實施例可以包括:一外框1、一鏡架2、一底板3、一致動器4、一形狀記憶合金線5 (Shape memory alloy, SMA)、至少一彈簧6、一限制元件7、複數個滾珠8與一導針9。As shown in FIGS. 1 to 5, the preferred embodiment of the lens auto-focus driving device provided by the present invention may include: an
其中,如圖3所示,外框1較佳地形成一矩形體,並且由上往下凹設有一容置空間11,該容置空間11的底部形成一中心孔12,在外框1的一角落13兩側的外框1上設置有第一定位孔14與第二定位孔15。底板3係設於外框1的外部底面,例如,底板3可以形成為基本上對應於外框1底面的輪廓形狀,並且在底板3上形成對應外框1之中心孔12的通孔30,以及分別對應第一定位孔14與第二定位孔15的定位柱31與定位孔32,藉此,可以將定位柱31由下往上穿過外框1的第一定位孔14以定位後,再以螺絲之類的固定元件將底板3鎖固於外框1。此外,所述第一定位孔14同時作為安裝滾珠8的通道,並且利用定位柱31穿過第一定位孔14後阻擋滾珠8下掉。Wherein, as shown in FIG. 3, the
鏡架2係用來安裝透鏡模組(圖中未顯示)的元件,該鏡架2形成為基本上具有一透鏡安裝孔20,並且整個鏡架2可以被安裝在外框1的容置空間11內,使得鏡架2可以在外框1的容置空間11內沿著光軸的軸向與外框1相對地移動;因此,鏡架2較佳地使其透鏡安裝孔20對應於外框1之中心孔12。此外,鏡架2的外側設置一角凸起21,該角凸起21具有形成為上下貫穿的一嵌合孔211,該嵌合孔211旁邊的角凸起21上形成一往上突出的凸柱212;再者,角凸起21的外側面形成有一階級部213,更明確地說,該階級部213係在角凸起21的外側表面形成一斷差,使角凸起21的下方相對於上方往徑向方向凹陷。The
導針9為一柱狀體,其軸向長度大於嵌合孔211的軸向長度,並且在適當位置形成有一凸緣91,該導針9的外徑基本上可以與角凸起21的嵌合孔211內徑產生干涉配合,或者利用黏著劑將導針9的外徑與嵌合孔211內徑黏著固定,並且在導針9安裝於嵌合孔211後利用凸緣91抵靠於嵌合孔211下端的外緣而定位,同時使導針9的相對兩端分別延伸出角凸起21的上、下表面,藉此,當鏡架2設置於外框1的容置空間11中後,在鏡架2未受到外力驅動的初始狀態下可以使導針9的下端抵觸於外框1上的角落13位置,並且鏡架2藉由所述導針9與所述限制元件7及滾珠8相互配合接觸的結構,以及藉由致動器4的驅動,可以使鏡架2與導針9同時相對於外框1移動。The
所述致動器4較佳地可以包含一第一固定件41A、一第二固定件41B與一形狀記憶合金線5,所述形狀記憶合金線5具有被通以電流加熱後可以產生形變以縮短長度,當不通以電流時自然地伸展至原來長度的特性,並且當調整電流量以調整熱量時可以調整其伸長量;所述形狀記憶合金線5利用通電時產生的電阻來加熱是已知的技術,因此在本文中省略了更詳細的說明。該第一固定件41A與第二固定件41B可以使用金屬板材成型出預定的形狀,以利用螺絲或黏膠等固定元件將其鎖固於外框1上;具體而言,係將第一固定件41A與第二固定件41B分別鎖固於外框1上的用於安裝頂針9之位置的角落的相對兩側;該第一固定件41A與第二固定件41B分別形成有一彎勾狀的夾合部411。形狀記憶合金線5係被預先成型為V形狀,當第一固定件41A與第二固定件41B被固定於外框1後,進一步將V形的形狀記憶合金線5兩端分別夾合於第一固定件41A與第二固定件41B上的夾合部411,並且將形狀記憶合金線5兩端之間的V形尖部內側套置於鏡架2之角凸起21的階級部213,以完成將形狀記憶合金線5連接外框1與鏡架2。該形狀記憶合金線5還進一步被電連接至電力裝置,使得形狀記憶合金線5被通電後產生熱變形而驅動鏡架2相對於外框1移動;具體而言,第一固定件41A與第二固定件41B亦同時被電性連接到設置在馬達的軟性電路板16,該軟性電路板16設有一驅動晶片與霍爾感測元件161,該驅動晶片可內置有霍爾感測元件161或者兩者獨立設置並電性連接,霍爾感測元件161是用以感測設置在鏡架2的磁鐵22的位置,驅動晶片則根據霍爾感測元件161的磁場變化而決定是否對對形狀記憶合金線5通電加熱,以使形狀記憶合金線5變形或回復原狀。另一方面,本發明還在鏡架2的凸柱212套設一彈性元件6,例如壓縮彈簧,並且使彈性元件6的一端連接至鏡架2以外的另一物體(圖中未顯示),藉此當鏡架2受到形狀記憶合金線5驅動移位後使彈性元件6變形以儲存彈力,當形狀記憶合金線5解除對鏡架2的驅動後,則利用彈性元件6對鏡架2施予所儲存的彈力以使鏡架2往原來位置的方向移動。The
本發明還包含了呈ㄇ形的限制元件7,該限制元件7包含有一對直立的且相互平行的導柱70,兩導柱70的上端之間以一橫桿76連接,該對導柱70係用以設置在外框1上並鄰接導針9的位置;具體而言,每一導柱70的上、下端分別形成有軸向突出的一上突柱72與一下突柱71,該下突柱71係對應於外框1的第二定位孔15與底板3的定位孔32,使得通過將下突柱71同時穿過該第二定位孔15與該定位孔32後將限制元件7定位,然後以固定元件將限制元件7固定在該位置;例如,可以利用黏膠由下往上注入設於該下突柱71端部的凹孔以將限制元件7固定,從而在兩導柱70與一導針9之間構成一包圍的空間(如圖5與圖6所示)。當限制元件7被固定後,則可以在兩導柱70的上端之間的橫桿76上設置具有更大寬度的一連接板74,藉由該連接板74阻擋兩導柱70之間所圍的空間的上方;更明確地說,該連接板74在接近兩端的位置可以設置槽孔741,使得將連接板74放置在橫桿76上時讓上突柱72穿過該槽孔741,然後再以諸如黏膠等固定元件黏著於上突柱72以將連接板74固定於限制元件7上方。The present invention also includes a
再者,為了使鏡架2相對於外框1旋轉移動時更為滑順,本發明還在該等導柱70與導針9所包圍的空間周圍設置複數個滾珠8,並且滾珠8與導針9及導柱70的表面可滾動地接觸(如圖4與圖5所示);較佳地,本發明可以在該等導柱70的外徑設有沿著軸向延伸的一凹部73(如圖5所示),藉由該凹部73與該連接板74可以將滾珠8限制在該凹部73的位置,使得滾珠8可以穩定地在導針9和導柱70的凹部73之間相對滾動。當鏡架2被形狀記憶合金線5驅動相對於外框1移動的同時帶動該等滾珠8在導針9與導柱70之間相對滾動,亦即藉由滾珠8的滾動支撐而使得鏡架2相對於外框1的移動更為滑順、穩定,且整體結構更為簡潔。本發明較佳地在角凸起21的上方與凸緣91的下方分別設置複數個滾珠8,以使導針9的周圍獲得更多滾珠8支撐,從而使導針9可以更滑順地移動。更詳細地說,在安裝角凸起21上方的滾珠8時,係先將連接板74卸下,再將滾珠8由上往下沿著導柱70的凹部73置入,然後將連接板74放置在橫桿76上,讓上突柱72穿過該槽孔741,再以諸如螺絲等固定元件鎖固於上突柱72以將連接板74固定於限制元件7上方,以避免滾珠8從上方脫離。在安裝凸緣91下方的滾珠8時,則先將底板3卸下,再將滾珠8由下往上通過第一定位孔14沿著導柱70的凹部73置入,然後將底板3重疊地安裝於外框1底部,並且使定位柱31穿過第一定位孔14以阻擋滾珠8往下方脫離。Furthermore, in order to make the
前述本發明除了可以將導針9組裝於角凸起21的嵌合孔211,以及將限制元件7以固定元件鎖固於外框1(如圖6所示)之外,也可以在另一實施例中,將該等限制元件銲接固定於外框1上,亦即在導柱70與外框1接觸的周邊形成銲接部74(如圖7所示)。或者,可以在另一實施例中,在鏡架2的角凸起21一體成型地形成導針9,亦即在導針9與角凸起21接觸的周邊形成銲接部92(如圖8所示)。或者,可以在另一實施例中,將該等導柱70銲接固定於外框1上,以及在鏡架2的角凸起21一體成型地形成導針9,亦即在導柱70與外框1接觸的周邊形成銲接部74,且在導針9與角凸起21接觸的周邊形成銲接部92 (如圖9所示)。In addition to assembling the
本發明藉由前述的導針、導柱與滾珠的彼此組合結構,可以使得導針隨著鏡架移動時受到滾珠保持而更為穩定,並且滾珠與導針及導柱之間係相對地滾動,致使其彼此之間係產生滾動摩擦而得以滑順地旋轉。The present invention uses the aforementioned combination structure of the guide pin, the guide pin and the ball to make the guide pin more stable by being held by the ball when the frame moves, and the ball, the guide pin and the guide pin roll relatively , Causing them to produce rolling friction between each other and rotate smoothly.
由以上實施例可知,本創作所提供之鏡頭自動對焦驅動裝置確具產業上之利用價值,惟以上之敘述僅為本創作之較佳實施例說明,凡熟習此項技藝者可依據上述之說明而作其它種種之改良,惟這些改變仍屬於本創作之精神及以下所界定之申請專利範圍中。It can be seen from the above embodiments that the lens auto-focus driving device provided by this creation does have industrial use value, but the above description is only an illustration of the preferred embodiment of this creation, and those who are familiar with this technique can follow the above description As for other improvements, these changes still belong to the spirit of this creation and the scope of the patent application defined below.
1:外框
11:容置空間
12:中心孔
13:角落
14:第一定位孔
15:第二定位孔
16:軟性電路板
161:驅動晶片
2:鏡架
20:透鏡安裝孔
21:角凸起
211:嵌合孔
212:凸柱
213:階級部
22:磁鐵
3:底板
30:通孔
31:定位柱
32:定位孔
4:致動器
41A:第一固定件
41B:第二固定件
411:夾合部
5:形狀記憶合金線(SMA)
6:彈性元件
7:限制元件
70:導柱
71:下突柱
72:上突柱
73:凹部
74:連接板
741:槽孔
75:銲接部
76:橫桿
8:滾珠
9:導針
91:凸緣
92:銲接部1: Outer frame
11: accommodating space
12: Center hole
13: corner
14: The first positioning hole
15: The second positioning hole
16: Flexible circuit board
161: driver chip
2: Frame
20: Lens mounting hole
21: corner bulge
211: Fitting Hole
212: Convex Column
213: Class Department
22: Magnet
3: bottom plate
30: Through hole
31: Positioning column
32: positioning hole
4:
圖1為顯示本發明鏡頭自動對焦驅動裝置之整體外觀結構的立體示意圖; 圖2為顯示本發明鏡頭自動對焦驅動裝置之整體外觀結構的俯視平面示意圖; 圖3為顯示本發明鏡頭自動對焦驅動裝置之主要元件組合關係之立體分解圖; 圖4為沿圖2之Ⅳ-Ⅳ線的剖面圖; 圖5為沿圖2之Ⅴ-Ⅴ線的剖面圖; 圖6為顯示本發明鏡頭自動對焦驅動裝置之導柱以固定元件被固定在外框,且導針係嵌設於角凸起之實施例立體示意圖; 圖7為顯示本發明鏡頭自動對焦驅動裝置之導柱以銲接方式被固定在外框,且導針係嵌設於角凸起之實施例立體示意圖; 圖8為顯示本發明鏡頭自動對焦驅動裝置之導柱以固定元件被固定在外框,且導針係以銲接方式被固定於角凸起之實施例立體示意圖;以及 圖9為顯示本發明鏡頭自動對焦驅動裝置之導柱以銲接方式被固定在外框,且導針亦以銲接方式被固定於角凸起之實施例立體示意圖。FIG. 1 is a three-dimensional schematic diagram showing the overall appearance and structure of the lens auto-focus driving device of the present invention; 2 is a schematic top plan view showing the overall appearance structure of the lens auto-focus driving device of the present invention; 3 is a perspective exploded view showing the combination of main components of the lens auto-focus driving device of the present invention; Figure 4 is a cross-sectional view taken along line Ⅳ-Ⅳ of Figure 2; Figure 5 is a cross-sectional view along the line Ⅴ-Ⅴ of Figure 2; 6 is a perspective view showing an embodiment in which the guide post of the lens auto-focus driving device of the present invention is fixed to the outer frame by a fixing element, and the guide pin is embedded in the corner protrusion; 7 is a perspective view showing an embodiment in which the guide post of the lens auto-focus driving device of the present invention is fixed to the outer frame by welding, and the guide pin is embedded in the corner protrusion; 8 is a perspective view showing an embodiment in which the guide post of the lens auto-focus driving device of the present invention is fixed to the outer frame by a fixing element, and the guide pin is fixed to the corner protrusion by welding; and 9 is a perspective view showing an embodiment in which the guide post of the lens auto-focus driving device of the present invention is fixed to the outer frame by welding, and the guide pin is also fixed to the corner protrusion by welding.
1:外框 1: Outer frame
2:鏡架 2: Frame
21:角凸起 21: corner bulge
213:階級部 213: Class Department
22:磁鐵 22: Magnet
411:夾合部 411: Clamping part
5:形狀記憶合金線(SMA) 5: Shape memory alloy wire (SMA)
6:彈性元件 6: Elastic element
7:限制元件 7: Restricted components
70:導柱 70: guide post
8:滾珠 8: Ball
9:導針 9: Guide pin
Claims (10)
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TW201336300A (en) * | 2012-02-23 | 2013-09-01 | Hon Hai Prec Ind Co Ltd | Autofocus imaging module |
GB201221306D0 (en) * | 2012-11-27 | 2013-01-09 | Cambridge Mechatronics Ltd | Suspension system for a camera lens element |
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