七、指定代表圖： :第（三） 號簡單說明： 壓電支柱 膠囊 彈性鋼片VII. Designation of representative drawings: : (3) Brief description: Piezoelectric pillars Capsules Elastic steel sheets
32 33 35 (=)本案指定代表圖為 (―)本代表圖之元件符 光學裝置 3 上基板 30 下基板 31 八、 本案若有化學柄，請揭*最能齡發鴨徵的化學式 九、 發明說明： 【發明所屬之技術領域】 本發明涉及一種自動對焦裝置， 移動實現對焦之自動對焦裝置。 【先前技術】 尤其涉及一種結構簡單且以非機械式 目前，數碼相機已越來越普及，而大眾對數碼相機的要求也越來越高。 而且市面上已出現眾多附加數位相機功能之移動電話，且移動電話數相 機之規格也越來越高，從最早期之30萬圖元直到現在已出現百萬圖元之移 動電話數位相機。除圖元要求外，大眾對移動電話數位相機之變焦功能愈 加關注。市面上之可自動變焦數位相機，常採用步進馬達驅動及感應線^ 驅動自動對焦兩種機制，二者均為採用使鏡頭機械式移動的方式，實現對 焦0 步進馬達驅動鏡頭移動以對焦，會使整個鏡頭模組增加步進馬達及與 之相連之環狀齒輪，體積變大，從而增加數位相機或移動電話之體積；且 利用步進馬達對焦，鏡頭與影像感測器之間發生相對旋轉，從而引發偏心 問題，如此易產生光軸偏斜。 感應線圈驅動鏡頭移動以對焦’需在感應線圈内置一磁鐵，二者配合 驅動鏡頭位移以實現自動對焦’會使整個鏡頭模組增加磁鐵，鏡頭本身重 量加重’因此須加大通過感應線圈之電流才能順利移動鏡頭，從而也會造 成電池負擔過大。 4 1328692 由上所述’以步進馬達驅動或感應線圈驅動自動對焦之鏡頭模組會引 入驅動馬達或磁鐵，均會造成鏡頭模組體積及重量增加；同時，二者均為 使鏡頭產生賴式_以實現雌，故存在鏡職組與影賴絲之間光 軸是否同軸的問題。 因此，為使鏡頭模組體積及重量減少，目前已出現使用壓電元件來實 現鏡頭移動以實現對焦之自動對絲置，此種結構為_糕之改變，即 可使壓電材料產生機械形變的性f，轉動鏡頭移動以實現對焦。 相關技術請參美國專利第6,710,950號，一種數位相機之自動對焦裝 置’使H電致姆根據數灿傭做職之舰以卿鏡頭元件的 ，置，其包括—鏡頭座，—鏡筒，—壓電致動器…彈性印刷電路板。盆32 33 35 (=) The representative figure of this case is (-) the component of the representative figure optical device 3 upper substrate 30 lower substrate 31 VIII. If there is a chemical handle in this case, please uncover the chemical formula of the most age-old duck sign. [Description of the Invention] [Technical Field] The present invention relates to an autofocus device that moves to achieve focusing. [Prior Art] In particular, it relates to a simple structure and a non-mechanical type. Currently, digital cameras have become more and more popular, and the public demand for digital cameras is also increasing. And there are many mobile phones with additional digital camera functions on the market, and the specifications of mobile phone digital cameras are getting higher and higher. From the earliest 300,000 yuan until now, there have been millions of mobile phone digital cameras. In addition to the primitive requirements, Volkswagen is paying more attention to the zoom function of mobile phone digital cameras. The automatic zoom digital camera on the market often uses two functions: step motor drive and induction line ^ drive auto focus. Both of them adopt the method of mechanically moving the lens to achieve focus 0 stepping motor to drive the lens to move to focus. , the entire lens module can be added to the stepping motor and the ring gear connected thereto, the volume becomes larger, thereby increasing the volume of the digital camera or the mobile phone; and using the stepping motor to focus, the lens and the image sensor occur between Relative rotation causes an eccentricity problem, which is easy to cause optical axis skew. The induction coil drives the lens to move to focus 'There is a magnet built into the induction coil. The two together with the drive lens displacement to achieve autofocus' will increase the magnet of the entire lens module, and the weight of the lens itself will increase. Therefore, the current through the induction coil must be increased. Moving the lens smoothly will also cause the battery to be overburdened. 4 1328692 The lens module that drives the autofocus by stepper motor drive or induction coil will introduce the drive motor or magnet, which will increase the volume and weight of the lens module. At the same time, both of them make the lens In order to realize the female, there is a problem that the optical axis between the mirror group and the shadow wire is coaxial. Therefore, in order to reduce the volume and weight of the lens module, there has been an automatic pairing of the lens using the piezoelectric element to achieve the focus of the lens. This structure is a change of the cake, which can cause mechanical deformation of the piezoelectric material. The sex f, rotate the lens to achieve focus. Related art, please refer to US Patent No. 6,710,950, an auto-focusing device for digital cameras, which enables H to generate a lens component according to a number of commissions, including a lens mount, a lens barrel, Piezoelectric actuators...elastic printed circuit boards. Pots
Lli筒内置有透鏡片，置於鏡頭座内，且可沿鏡頭座之縱向軸線產生相 對移動。㈣致鮮包括多個壓電元件，該壓t元件環設於鏡職外周圍， =貫現鏡筒之移動。該彈性印刷電路板安裝在鏡頭座上，與該 且該彈性印刷電路板可使壓電致動器產生機械形變從 ，種採用壓電元件之自動對焦裝置，可使鏡頭模組移動以對焦，雖可 目^小鏡触組之體積及重量’但因其顧過使鏡頭模 現對焦，故鏡頭與影像感光器之間的光軸仍會產生偏移。 λ 综上所述，时進馬達驅動、感麟壓電元件驅動實現自動 如，以，提供-種降低鏡頭模組體積及重量且無需考慮鏡 益之間光軸的同軸性之自動對焦裝置，實為必須。 、、、，及认 【發明内容】 本發明之目的在贿供-種自動聽裝置，尤其提供 以非機械式雜實賴f'之自動職裝置。 U冓簡早且 為實現本發明之目的，本發明的 鏡筒，-鏡頭座及-影像信制偏 種自動對焦裝置包括一 鏡頭座内；其中，該自動對縫置進—步包括—置於鏡頭座内之m在 5 1328692 。玄光孥裝置包括-上基板、一下基板、支 彈=片，其安裝在鏡筒與影像偵測封裝件 f之 支柱及四 置厚度變化可實現自動對隹，⑭構包括—光學裝置’該光學裝 定裝置，並未產生機械位移。僅須 :像操取讀均為固 自動對焦，以非機械式移動實現巧隹，度進打調整，即可達到 光轴的同轴性。多動貫現4焦’無須考慮鏡筒與影像封裝件之間的 【實施方式】 頭座㈣自咖淑包括―鏡筒1，—鏡 在鏡頭座2内。其中，鏡筒1安裝=ί= -以：：1傲、“象偵測封裝件4依次安裝在鏡頭座2内，光學妒置3 女裝在鏡筒1與影像偵測封裝件4之間。 η尤予裒置3 該鏡筒1為-圓柱形體’其内置有鏡片1〇，其外壁上 細 内辟:=二=中=形體’其内徑稍大於鏡筒1 :内徑。鏡頭座； 將ii 20可與鏡筒1外壁上之外螺㈣相配合以 凊一同參閱第三圖，該光學裝置3為一方 影像侧封裝件4。光學裝置3包括—上其 ’ °使光信號透過至 u予衣夏J巴括一上基板3〇 , 一下基板 下基板3〇、31之四壓電支柱32。光學裝置3之中心 與鏡筒1内之鏡>} 1G之細_。 Θ孤 光膜該可透可見光之透明基板，上基板3G上鍛有滤 =膜’而下^板31上則鍍有抗反麵，紐號人射時，縣射過減入射 光’而抗反射酬可減少人射光在下基板上反射，二者可減 ； 30、31對人射至影像侧缝件4之光信號的影^繩電支柱3 = 壓電材料可為壓電喊等材料’壓電材料具通電產生機械形變 立 形變量與電壓成正比，相作機電轉換換能器。壓電支柱32上連接有一^ 6 1328692 電電源’壓電電源提供該壓電支柱32 從而可帶動上、下基板3〇、3^2^可使壓電支柱32產生形變， 門展H 下基板3G、31與四壓電支柱32之間形成-中 折 之雜_，其喊村透光之透體，該 學裝置3還包括四彈性鋼片35,該彈性鋼片35呈“〔”形。四彈 L 30 3 ί上下H 彈_35壓設在上、下基板3g、31上，可保 31Γ雜，纽32緊密貼附。 該影軸測封裝件4置於鏡頭座2内底端，包括 ’該影像娜元件4㈣在封裝元件The Lli cartridge has a built-in lens that is placed in the lens mount and provides relative movement along the longitudinal axis of the lens mount. (4) The freshness includes a plurality of piezoelectric elements, and the pressure t element is arranged around the outside of the mirror, and the movement of the lens barrel is completed. The elastic printed circuit board is mounted on the lens mount, and the elastic printed circuit board can mechanically deform the piezoelectric actuator. The autofocus device using the piezoelectric component can move the lens module to focus. Although the size and weight of the small mirror group can be seen, the optical axis between the lens and the image sensor still shifts due to the focus of the lens. λ In summary, the time-infeed motor drive and the sensory piezoelectric element drive are automatically implemented to provide an autofocus device that reduces the volume and weight of the lens module without considering the coaxiality of the optical axis between the mirrors. Really necessary. SUMMARY OF THE INVENTION The object of the present invention is to provide a self-service device that is not a mechanical type. The lens barrel, the lens holder and the image signal bias type autofocus device of the present invention comprise a lens holder; wherein the automatic seaming step comprises: The m in the lens mount is at 5 1328692. The 孥光孥 device includes an upper substrate, a lower substrate, a brace=slice, which is mounted on the pillar of the lens barrel and the image detecting package f, and four thickness variations can be realized for automatic alignment, and the 14-frame includes an optical device. The device is set without mechanical displacement. It only needs to be: Auto-focusing like operation and reading, and non-mechanical movement to achieve cleverness, and degree adjustment can achieve the coaxiality of the optical axis. The multi-action 4 focal length does not need to consider between the lens barrel and the image package. [Embodiment] The head holder (4) includes a "lens barrel 1", which is inside the lens holder 2. Wherein, the lens barrel 1 is mounted = ί = - with : 1 proud, "like the detection package 4 is sequentially installed in the lens mount 2, the optical device 3 is between the lens barrel 1 and the image detection package 4 η 裒 裒 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该 该The ii 20 can be coupled with the outer screw (four) on the outer wall of the lens barrel 1 to refer to the third figure together, the optical device 3 is an image side package 4. The optical device 3 includes an optical signal After passing through the substrate 3, the upper substrate 3, the fourth piezoelectric post 32 of the substrate lower substrate 3, 31. The center of the optical device 3 and the mirror in the lens barrel 1 > Θ Solitary film, transparent substrate that can transmit visible light, the upper substrate 3G is forged with a filter=film' and the lower plate 31 is plated with anti-reverse surface. The reflection can reduce the reflection of the human light on the lower substrate, and the two can be reduced; 30, 31 the light signal of the light signal that the person shoots to the image side seam member 4; the electric pole 3 = the piezoelectric material can be a material such as piezoelectric shouting The piezoelectric material is energized to produce a mechanical deformation variable which is proportional to the voltage and is used as an electromechanical conversion transducer. The piezoelectric post 32 is connected with a ^6 1328692 electric power supply. The piezoelectric power supply provides the piezoelectric support 32 so as to be driven. The lower substrate 3〇, 3^2^ can deform the piezoelectric post 32, and the gate extension H forms a miscellaneous _ between the substrate 3G, 31 and the four piezoelectric struts 32, and the shattering of the village is transparent. The device 3 further includes a four elastic steel sheet 35 having a "[" shape. The four elastic L 30 3 ί upper and lower H elastic _35 are pressed on the upper and lower substrates 3g, 31, and can be secured. 31 noisy, New 32 is closely attached. The shadow bearing package 4 is placed at the bottom end of the lens mount 2, including 'the image of the Na element 4 (four) in the package component
Semiconductor^^i^b^J^^ (C〇mPle~y Metal-Oxide DeViee 丰導體)影像感測器或 CCD(ChargeC〇Upled 鏡二及:置牛等。該影像掘取元件40與鏡筒1内之 信號。 F置之先軸共軸，可接受透過鏡片10及光學裝置3之光 並將礙裝置3’在可伸縮透明膠囊33内裝人透明液體， =〇 3 Γΐΐ'下基板30、31及四壓電支柱32上，并置於上、下 二線斑光學裝置四3m形成之光學裝置3之中間層内，且使膠囊33 光學裝置3 ^光與可透區共轴。將四彈性細35分別對稱夹持在 板30、31與四:電支間，使光學裝置3之上、下基 爯社&相使光學裝置3結構更穩定。 並使影蝴晦輸2底端， 影像偵測封裝件上述組裝好之光學裝置3安裝在 使鏡筒！外奴將鏡同1雜射向套讀職2内， 進入鏡頭庙9力螺螺接鏡頭座2内壁上之内螺紋2〇,鏡筒1藉此 碩座2内’進而安裝在鏡頭座2上。至此完成自動對焦裝置的 1328692 光信號透過鏡筒1内之透鏡ίο，入射至光學裝置3上，光學裝置3之 上、下基板30、31均為可透可見光之透明基板，且上基板3〇上鍍有濾光 膜，而下基板31上鍍有抗反射膜。光信號可精准地透過光學裝置3至影像 偵測封裝件4之影像擷取元件4〇上。 對焦時’四壓電支柱32接通與之相連的壓電電源，使壓電支枝32受 電壓影響產生機械形變，帶動上、下基板3〇、31移動，從而使光學裝置3 厚度發生變化。可伸縮透明膠囊33粘貼在上、下基板3〇、31及四壓電支 柱32形成之中間層中，光學裝置3之厚度變小可擠壓可伸縮透明膠囊33 使^產生形變，若光學裝置3之厚度恢復原狀，膠囊33亦可隨之恢愎原狀。 =膠囊33内裝有可透光之透明液體，光信號透過上基板3〇進入透明液體 時，會發生折射現象，故光學路徑亦會產生變化。 π再次參閱第四圖，光信號透過上基板3〇後，若未透過透明液體，而 直接透過下基板31，則成像點在Ν處；若透過透明液體，此時，若透明液 體之折射率為η’空氣之折射率為nQ，按照公式（1): n〇 sin Θ i=n sin Θ t (1) 扣其中為入射角，匕為折射角，因透明液體之折射率n大於I】， 而工氣之折射率n。為丨Q，故&小於。因此，可知光信號透過下基板 後，成像點會在N，處，相對生相對位移。 根據公式（1)及直角三角形sin 0與邊長之關係，在入射角^較小時， 可推出公式（2): 學位置/^度厂，n為透明液體之折射率。由此可見， UNN與姆裝置3的厚度t相關，且二者成正比。 梦罟個壓電支柱32高度之變化可實現光學裝置3厚度改變，光 ^像揣改變亦可使光學位移路徑抓，變化，從而相當於使鏡片10 丄》兀件40間之距離改變。同時，光學裝置3之厚度變化可盘電壓 焦裝置^，產生連續不同之變化，從而實現自動 此種結構騎趙電紐32高度改變碰光學裝置3之厚度產生 8 1328692 =置並不象二： 上所=本=合發明專利要件’麦依法提出專利申請。惟，以 案創作精神ί作以ίίί實補，舉凡熟悉本隸藝之人士，在援依本 【圖式簡單說明】飾或變化，皆應包含於以下之_請專利範圍内 第二綱-步詳細_ 第=圖係本發明自動對焦裝置之剖示圖。 第三圖係本發明自動對焦裝置之 【主焦裝置之入射光透過光二光· 自動對焦裝置 ιοο Λ*. MfcSemiconductor^^i^b^J^^ (C〇mPle~y Metal-Oxide DeViee) Image sensor or CCD (ChargeC〇Upled mirror 2 and: set cattle, etc.. Image capturing component 40 and lens barrel The signal in 1 is set to be coaxial with the first axis, and the light passing through the lens 10 and the optical device 3 is acceptable, and the device 3' is filled with a transparent liquid in the retractable transparent capsule 33, = 〇 3 Γΐΐ 'lower substrate 30 And 31 and the four piezoelectric struts 32 are placed in the intermediate layer of the optical device 3 formed by the upper and lower two-line plaque optical devices 4 m, and the optical device 3 of the capsule 33 is coaxial with the permeable region. The four elastic thin pieces 35 are symmetrically sandwiched between the plates 30, 31 and the four: electric branches, so that the optical device 3 is made more stable on the upper and lower sides of the optical device 3, and the bottom end of the optical device 3 is transmitted. , the image detecting package, the assembled optical device 3 is installed in the lens barrel! The external slave mirrors the same lens into the sleeve 2, and enters the internal thread of the lens temple 9 force screw to the inner wall of the lens holder 2 2〇, the lens barrel 1 is further mounted on the lens mount 2 by the inside of the base 2, and thus the optical light of the 13286692 of the autofocus device is transmitted through the lens in the lens barrel 1 Ίο, incident on the optical device 3, the optical device 3, the lower substrate 30, 31 are transparent substrates transparent to visible light, and the upper substrate 3 is coated with a filter film, and the lower substrate 31 is plated with anti-reflection The optical signal can be accurately transmitted through the optical device 3 to the image capturing component 4 of the image detecting package 4. When focusing, the 'four piezoelectric struts 32 are connected to the piezoelectric power source connected thereto, so that the piezoelectric branch 32 is mechanically deformed by the influence of voltage, and the upper and lower substrates 3, 31 are moved to change the thickness of the optical device 3. The retractable transparent capsule 33 is attached to the upper and lower substrates 3, 31 and the four piezoelectric pillars 32. In the intermediate layer, the thickness of the optical device 3 becomes small, and the retractable transparent capsule 33 can be squeezed to cause deformation. If the thickness of the optical device 3 is restored to the original state, the capsule 33 can be restored to the original state. A transparent liquid that can transmit light, when the light signal enters the transparent liquid through the upper substrate 3, a refraction phenomenon occurs, so the optical path also changes. π Referring back to the fourth figure, after the optical signal passes through the upper substrate 3, if not Through transparent liquid, straight Through the lower substrate 31, the image forming point is at the crucible; if the transparent liquid is transmitted, at this time, if the refractive index of the transparent liquid is η', the refractive index of the air is nQ, according to formula (1): n〇sin Θ i=n sin Θ t (1) buckled as the incident angle, 匕 is the angle of refraction, because the refractive index n of the transparent liquid is greater than I], and the refractive index n of the working gas is 丨Q, so & is less than. Therefore, it is known that the light signal is transmitted. After the lower substrate, the imaging point will be relative to the relative displacement at N. According to the formula (1) and the relationship between the right triangle sin 0 and the side length, when the incident angle ^ is small, the formula (2) can be derived: /^ degree factory, n is the refractive index of the transparent liquid. It can be seen that UNN is related to the thickness t of the device 3 and is proportional to the two. It is a dream to change the height of the piezoelectric post 32 to change the thickness of the optical device 3. The change of the optical image can also cause the optical displacement path to be grasped and changed, thereby equivalent to changing the distance between the lens 10 and the member 40. At the same time, the thickness variation of the optical device 3 can be made by the disk voltage coke device, resulting in successively different changes, thereby realizing the automatic structure of the device. The height of the touch device 3 is changed to the thickness of the optical device 3 to generate 8 1328692 = not like two: The above = this = the invention patent requirements 'Mc legally filed a patent application. However, in the spirit of the case creation, ίίί 补 补 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Step Details _ Fig. 1 is a cross-sectional view of the autofocus device of the present invention. The third figure is the autofocus device of the present invention. [The incident light of the main focus device is transmitted through the light and the autofocus device ιοο Λ*. Mfc
鏡闾 I 鏡頭座 2' 光學裝置 3 影像偵測封裝件 4 鏡片 外螺紋 内螺紋 10 12 20 上基板 30 下基板 31 壓電支柱 32 膠囊 33 彈性鋼片 35 影像擷取元件 40 封裝元件 42Mirror 闾 I Lens mount 2' Optical device 3 Image detection package 4 Lens External thread Internal thread 10 12 20 Upper substrate 30 Lower substrate 31 Piezo post 32 Capsule 33 Elastic steel sheet 35 Image capture element 40 Package component 42