200830020 九、發明說明： 【發明所屬之技術領域】 本發明係為一種鏡頭對焦驅動響應時間（Response Time)抑制方法及結構，特別是關於—種可抑制微型鏡頭對 焦驅動的響應時間，降低鏡頭對焦移動所產生的抖動，而 快速達到穩態的結構。 【先前技術】 由於科技的進步，使得數位相機的體積縮的相當地 小’而目前的行動電話亦大都建置有數位相機的功能，這 些都歸功於攝像鏡頭的模組化及微型化，而在微型鏡頭内 有許多種類的自動對焦驅動結構，目前最普遍被使用的是 音圈馬達(VCM)，因其具有體積小、用電量少、致動位移 精確及價格低廉荨優點，適合作為微型鏡頭自動對焦的短 距驅動。 如圖一所示，係為習知鏡頭對焦驅動結構之立體分解 示意圖，其中對焦驅動結構包含有一上蓋10、下底蓋^及 一外框架12,該外框架12内四週邊分別嵌入四磁鐵13，一 鏡頭支架14内設有螺紋，可旋入支撐一鏡頭15，該鏡頭支 木14外圍嵌設有一線圈16，而該鏡頭支架μ可活動於該外 框架12内的四磁鐵13中心，並由該線圈16通電產生磁場極 性與該四磁鐵13相斥或相吸，驅動該鏡頭支架14進行對焦 值移，而該鏡頭支架14係藉由上下各一彈片ι7支標在亨四 磁鐵13的中心處。當該線圈16通電流，該線圈16因電流磁 200830020 場作用與該磁鐵13產生推力，而藉該彈片17推動該鏡頭支 架14從下往上移動到定位為止。 然而，只要鏡頭具有自動對焦的功能，都會因對焦移 動至定位停止移動時產生抖動，之後再慢慢達到穩態，這 段從靜止移動到停止所需的時間，吾人稱為動態響應時間 (Response Time)，如圖二所示即為偵測習知對焦驅動結構 的動態響應波形示意圖，由圖二可看出需要1.34035秒才能 達到穩態，時間相當的長。 ❿ 由於這段動態響應時間會影響鏡頭模組對焦的時間 長短，對於鏡頭模組的品質有很大的影響，尤其會影響對 焦所需時間長短，動態響應時間越長，所需的對焦時間越 長，所以必需將動態響應時間縮短，才能有效改善對焦所 需的時間，而目前並未見有任何針對此動態響應時間加以 改善的文獻或技術。 職是，本案發明人針對如何改善鏡頭動態時間加以潛 心研究，終於研發出一種鏡頭對焦驅動響應時間抑制方法 • 及結構，可將此段動態響應時間降低，甚至完全消除，是 為一設計合理之創作。 【發明内容】 本發明之目的是在提供一種鏡頭對焦驅動響應時間抑 制方法及結構，可吸收鏡頭對焦驅動結構因移動至定位， 停止移動時所產生抖動，以抑制動態響應時間（Response Time)，藉以提昇品質，並達到提昇效能的功效。 200830020 為達到上述之目的，本發 一 構之動態響應時間抑制方法對焦驅動結 -可動機構及-不可動機結構係具有 不可動機構之間設置至少一 ，於，可動機構與 件，接著連接 a 用以容置一吸震元 藉由該2=震元件於該可動機構與該不可動機構， 二抖動收該可動機構對焦位移至定位時所產生 為m 、該可動機構至穩態之動態響應時間。200830020 IX. Description of the Invention: [Technical Field] The present invention relates to a lens focus drive response time (Response Time) suppression method and structure, and more particularly to a response time that can suppress a micro lens focus drive and reduce lens focus Move the resulting jitter and quickly reach a steady-state structure. [Prior Art] Due to advances in technology, the size of digital cameras has been reduced considerably. The current mobile phones have mostly built digital cameras, thanks to the modularization and miniaturization of camera lenses. There are many types of autofocus drive structures in miniature lenses. The most common type of voice coil motor (VCM) is currently used because of its small size, low power consumption, accurate actuation displacement and low price. Short-range drive for micro lens autofocus. As shown in FIG. 1 , it is a perspective exploded view of a conventional lens focus drive structure. The focus drive structure includes an upper cover 10 , a lower bottom cover ^ and an outer frame 12 . The outer periphery of the outer frame 12 is embedded with four magnets 13 respectively. a lens holder 14 is provided with a thread for screwing into a lens 15 , a coil 16 is embedded in the periphery of the lens branch 14 , and the lens holder μ can move in the center of the four magnets 13 in the outer frame 12 , and The coil 16 is energized to generate a polarity of the magnetic field to repel or attract the four magnets 13, and the lens holder 14 is driven to perform a focus value shift, and the lens holder 14 is supported by the upper and lower pieces of the ej4 Center. When the coil 16 is energized, the coil 16 generates a thrust due to the field magnetization of the current source 200830020, and the lens holder 17 urges the lens holder 14 to move from bottom to top. However, as long as the lens has the function of autofocus, it will cause jitter when the focus moves to the position to stop moving, and then slowly reach the steady state. The time required to move from static to stop is called dynamic response time (Response Time), as shown in Figure 2, is a schematic diagram of the dynamic response waveform of the conventional focus drive structure. It can be seen from Figure 2 that it takes 1.34035 seconds to reach steady state, and the time is quite long. ❿ Since this dynamic response time will affect the length of focus of the lens module, it has a great influence on the quality of the lens module, especially affecting the length of time required for focusing. The longer the dynamic response time, the more focusing time is required. Long, so the dynamic response time must be shortened in order to effectively improve the time required for focusing, and there is no literature or technology to improve this dynamic response time. At the job, the inventor of this case focused on how to improve the dynamic time of the lens, and finally developed a lens focus drive response time suppression method and structure, which can reduce or even eliminate the dynamic response time of this segment. creation. SUMMARY OF THE INVENTION An object of the present invention is to provide a lens focus drive response time suppression method and structure, which can absorb jitter generated when a lens focus drive structure moves to a position and stops moving, thereby suppressing a dynamic response time (Response Time). In order to improve quality and achieve efficiency. 200830020 In order to achieve the above object, the dynamic response time suppression method of the present invention has a focus drive-kappable mechanism and a non-moveable structure having at least one between the non-movable mechanisms, the movable mechanism and the member, and then the connection a The dynamic response time of the movable mechanism to the steady state is generated by accommodating a shock absorbing element by the 2=seismic component to the movable mechanism and the non-movable mechanism, and the movable mechanism is in focus displacement to the position of m.
，’、、1上述之目的，本發明係供一種鏡Jiff隹 動態響應時間抑制結構，包括一可動兄卿焦，動之 =少-吸震元件，其中該可動機構至少包含::座機： 座中心可裝設一 ^s基座，基 構至少包含一框架、、一；包覆一線圈；該不可動機 個磁性元件，令心* = 一底盘；該框架四周篏設數 可動機構與該不可機Γ該吸震元件連接於該 位移至定位時所產生之二以吸收該可動機構對焦 動態響應時間。、以p制*亥可動機構至穩態之 元件，係設有可動部與不可動部，ς中更包括至少一彈性 構’該不可動部連接該不可動機構; 於該彈性元件之可動部與該不可動件係連接 可動機構對焦位移至定位時所產生之抖動:以吸收該 機構至穩態之動態響應時間。n以抑制該可動 200830020 【實施方式】 為了使貴審查委員能更進一步瞭解本發明為達成預 定目的所採取之技術、手段及功效，請參閱以下有關本發 明之詳細說明與附圖，相信本發明之目的、特徵與特點， 當可由此得一深入且具體之瞭解，然而所附圖式僅提供參 考與說明用，並非用來對本發明加以限制者。 本發明主要針對抑制鏡頭對焦時之動態響應時間 (Response Time)，因此以一鏡頭對焦驅動結構作為實施例 春 說明，如圖三係為一鏡頭對焦驅動結構之立體分解圖，而 圖四A係為圖三之底面立體圖（鏡頭省略），圖四b係為圖 四A之局部放大示意圖，該鏡頭對焦驅動結構2〇包括一基 座21、數個磁性部23、一框架24、一前蓋25、一底蓋26、 一殼體27及數個彈性元件28。其中該基座21具有一線圈3〇 及一鏡頭31 ’該基座21設置在框架24之中心，該鏡頭31則 裝設在基座21之中心，該線圈30包覆在基座21四周，該磁 性部23設置於該框架24之四周上，使其恰好位於線圈3〇之 ® 外圍，並保持一段可使電場發生效應之固定距離。 其中該彈性元件28係屬導電材質，其設置在框架24與 底蓋26之間，和框架24與前蓋25之間，而該殼體27包覆上 述所有之構件，但鏡頭31可依狀況而外露。 如圖四A、B並一併參閱圖五，係為本發明動態響應時 間抑制方法之流程示意圖，在本發明中該基座21是屬於可 動機構50，而其餘元件皆屬不可動機構6〇，本發明於可動 機構50與不可動機構60間開設至少一容置槽口 61(S100)， 200830020 ^於該容置槽口 61内置入至少一吸震元件62(811〇)，該吸 震元件62係連接於該可動機構5〇與不可動機構6〇之間 (S120)，用以吸收該可動機構5〇位移至定位時所產生的抖 動(S130)，以抑制該動態響應時間。 —如圖四A、B之實施例及圖六A、B所示，係為本發明 鏡頭對焦驅動結構使用吸震元件之作動狀態剖面示意圖， 該吸震元件62之-端附著於該底蓋26，另一端附著於該基 座21之下側面，該吸震元件62可為軟性凝膠、軟性彈簧或 軟性橡皮…等等可吸震之材料或構件。除此外，本發明亦 可將吸震元件62連接於前蓋25與基座21之間，或者框架24 ^基座21之間，只要避開鏡頭31的m人口，亦可於前 -25、底盍26及框架24與基座21之間皆可設置該吸震元件For the above purpose, the present invention provides a mirror Jiff隹 dynamic response time suppression structure comprising a movable brother, a moving-small-shocking element, wherein the movable mechanism comprises at least: a landline: a seat The center may be provided with a base, the base structure comprises at least one frame, one; covering a coil; the non-motivated magnetic element, the heart* = a chassis; the movable mechanism and the non-movable mechanism are arranged around the frame The shock absorbing element is coupled to the displacement generated to the second position to absorb the dynamic response time of the movable mechanism. The unit is a movable unit and a non-movable portion, and the at least one elastic portion is connected to the movable portion. The movable portion of the elastic member is connected to the movable portion. The movable mechanism is coupled to the movable member to focus the displacement to the jitter generated during positioning: to absorb the dynamic response time of the mechanism to a steady state. In order to enable the reviewing committee to better understand the techniques, means, and effects of the present invention for achieving the intended purpose, refer to the following detailed description of the present invention and the accompanying drawings. The purpose, features, and characteristics of the invention are to be understood as being limited and not limited by the scope of the invention. The invention is mainly for suppressing the dynamic response time (Response Time) when the lens is in focus. Therefore, a lens focus drive structure is taken as an embodiment spring, and FIG. 3 is an exploded view of a lens focus drive structure, and FIG. 4A 3 is a partial enlarged view of the bottom surface of FIG. 3, and FIG. 4b is a partial enlarged view of FIG. 4A. The lens focusing drive structure 2 includes a base 21, a plurality of magnetic portions 23, a frame 24, and a front cover. 25. A bottom cover 26, a housing 27 and a plurality of resilient members 28. The base 21 has a coil 3〇 and a lens 31. The base 21 is disposed at the center of the frame 24. The lens 31 is disposed at the center of the base 21, and the coil 30 is wrapped around the base 21. The magnetic portion 23 is disposed on the periphery of the frame 24 so that it is located just outside the coil 3 of the coil and maintains a fixed distance which allows an electric field to take effect. The elastic member 28 is a conductive material disposed between the frame 24 and the bottom cover 26, and between the frame 24 and the front cover 25, and the housing 27 covers all of the above components, but the lens 31 can be in accordance with the situation. And exposed. 4A, B and FIG. 5 are a schematic flow chart of a dynamic response time suppression method according to the present invention. In the present invention, the base 21 belongs to the movable mechanism 50, and the remaining components are non-movable mechanisms. The present invention provides at least one accommodating notch 61 (S100) between the movable mechanism 50 and the non-movable mechanism 60, and the at least one shock absorbing member 62 (811 〇) is built in the accommodating notch 61. The shock absorbing member 62 It is connected between the movable mechanism 5〇 and the non-movable mechanism 6〇 (S120) for absorbing the jitter generated when the movable mechanism 5〇 is displaced to the positioning (S130) to suppress the dynamic response time. - Figure 4A, B embodiment and Figure 6A, B, is a schematic cross-sectional view of the actuating state of the lens focusing drive structure of the present invention, the end of the shock absorbing element 62 is attached to the bottom cover 26, The other end is attached to the lower side of the base 21. The shock absorbing member 62 can be a soft gel, a soft spring or a soft rubber or the like. In addition, the present invention can also connect the shock absorbing element 62 between the front cover 25 and the base 21, or between the frame 24 and the base 21, as long as the m population of the lens 31 is avoided, and the front-25 and bottom can also be used. The shock absorbing member can be disposed between the 盍 26 and the frame 24 and the base 21
另外，由於彈性元件28上設有可動部連接基座2卜及 =可動部連接於前蓋25或絲26，因此本發财可將該吸 t疋件62連接於該彈性元物與前蓋25或底蓋26之不可動 ，構60之間’如此皆可藉由吸震元件咖收基㈣位移至 疋位所產生的抖動’以抑制該動態響應時間。 如，七人係為_本發明使用吸震元件後的動態響應 二丁心®由圖七可看出本發明加人吸震元件62後，該 土 121位：至定位時直接達到穩態，完全沒有動態響應時 二：=當有效地抑制動態響應時間，且本發明加上 = 後’對產品信賴信測試中的衝擊及震動試驗也 有吸辰_的效果，使產品的信雛更佳。 200830020 職是，本發明確能藉上述所揭露之技術，提供一種迥 然不同於習知者的設計，堪能提高整體之使用價值，又其 申請前未見於刊物或公開使用，誠已符合發明專利之要 件，爰依法提出發明專利申請。 惟，上述所揭露之圖式、說明，僅為本發明之實施例 而已，凡精于此項技藝者當可依據上述之說明作其他種種 之改良，而這些改變仍屬於本發明之發明精神及以下所界 定之專利範圍中。 200830020 【圖式簡單說明】 圖一係為習知鏡頭對焦驅動結構之立體分解示意圖； 圖二係為偵測習知對焦驅動結構的動態響應波形示 意圖； 圖三係為本發明鏡頭對焦驅動結構之立體分解圖； 圖四A、B係為圖三組合後之底侧面立體圖（鏡頭省略） 及局部放大不意圖， 圖五係為本發明動態響應時間抑制方法之流程示意 ⑩ 圖； 圖六A、B係為本發明鏡頭對焦驅動結構使用吸震元件 之作動狀態剖面示意圖；及 圖七係為偵測本發明使用吸震元件後的動態響應波 形示意圖。 【主要元件符號說明】 10 上蓋 11 下底蓋 12 外框架 13 四磁鐵 14 鏡頭支架 15 鏡頭 16 線圈 17 彈片 20 對焦驅動結構 -11- 200830020 21 基座 23 磁性部 24 框架 25 前蓋 26 底盡 27 殼體 28 彈性元件 30 線圈 31 鏡頭 50 可動機構 60 不可動機構 61 容置槽口 62 吸震元件 -12 -In addition, since the elastic member 28 is provided with the movable portion connecting base 2 and the movable portion is connected to the front cover 25 or the wire 26, the present invention can connect the suction member 62 to the elastic member and the front cover. 25 or the bottom cover 26 is immovable, between the structures 60 'so can be shaken by the shock absorbing element (four) displacement to the clamp ' to suppress the dynamic response time. For example, the seven-person system is the dynamic response of the present invention after using the shock absorbing element. The two-hearted core can be seen from Figure 7 after the addition of the shock-absorbing element 62, the soil 121 position: directly to the steady state when positioning, no Dynamic response time 2: = When the dynamic response time is effectively suppressed, and the invention adds the = after 'the impact and vibration test in the product trust letter test also has the effect of sucking the _, so that the product is better. 200830020, the present invention can indeed provide a design that is quite different from the prior art by the above-mentioned disclosed technology, which can improve the overall use value, and is not found in the publication or public use before the application, and has already complied with the invention patent. The essentials are to file an invention patent application in accordance with the law. However, the drawings and descriptions disclosed above are only examples of the present invention, and those skilled in the art can make various other modifications according to the above description, and these changes still belong to the inventive spirit of the present invention. The scope of the patents defined below. 200830020 [Simple diagram of the diagram] Figure 1 is a perspective exploded view of a conventional lens focus drive structure; Figure 2 is a schematic diagram of the dynamic response waveform of the conventional focus drive structure; Figure 3 is a lens focus drive structure of the present invention Fig. 4A and B are the bottom side perspective view (lens omitted) and partial enlargement of Fig. 3, and Fig. 5 is a flow chart 10 of the dynamic response time suppression method of the present invention; Fig. 6A B is a schematic cross-sectional view of the actuating state of the lens focusing drive structure using the shock absorbing component; and FIG. 7 is a schematic diagram of the dynamic response waveform after detecting the shock absorbing component of the present invention. [Main component symbol description] 10 Upper cover 11 Lower bottom cover 12 External frame 13 Four magnets 14 Lens holder 15 Lens 16 Coil 17 Shrapnel 20 Focus drive structure -11- 200830020 21 Base 23 Magnetic part 24 Frame 25 Front cover 26 Bottom 27 Housing 28 Elastic element 30 Coil 31 Lens 50 Movable mechanism 60 Non-movable mechanism 61 accommodating notch 62 Shock absorbing element -12 -