200928541 九、發明說明： 【發明所屬之技術領域】 " 本發明涉及一種鏡頭模組及採用該鏡頭模組之一種相 機模組。 【先前技術】 隨著攝像技術之發展，鏡頭模組於各種用途之攝像裝 置中得到廣泛之應用，鏡頭模組與各種可檇式電子裝置如 手持、電腦等之結合，更得到眾多消費者之青睞。 @ 鏡頭模組通常包括鏡筒以及收容於鏡筒中之光學元 件。該光學元件通常包括鏡片、紅外截止濾光片、及用以 間隔鏡片與紅外截止濾光片之間隔部件，如間隔環等。有 關鏡片之設計方法請參閱Chao等人於2000年IEEE系統、 超聲波會議（2000 IEEE Ultrasonics Symposium)上發表之論 文 Aspheric lens design ° 對於採用鏡頭模組及影像感測器組合而成之相機模組 (如數碼相機），能夠獲得較佳之拍攝品質，使相機模組獲得 〇清晰之影像係對其之基本要求。惟，由於鏡頭模組中通常 設置有複數鏡片，光線於透射過各個鏡片之同時，容易於 各個鏡片之介面發生反射，該等反射光除有部分被反射出 相機模組外，大部分均可由上述反射最終到達影像感測器 並為影像感測器所感測，從而使相機模組產生眩光現象， 導致光學成像之品質降低，進而使拍攝晝面失真變形。 【發明内容】 本發明之目的在於提供一種鏡頭模組，以及一種包含 200928541 .該鏡頭模組之相機模組，該相機模組具防眩光功能，可獲 得較佳之拍攝效果。 下面將以實施例說明一種鏡頭模組及採用該鏡頭模組 之相機模組。 一種鏡頭模組，該鏡頭模組包括一鏡筒及收容於該鏡 筒内之至少一鏡片，該至少一鏡片具有一光學部及一環繞 該光學部之支撐部，該支撐部之表面配置有微結構。 一種相機模組，其包括上述鏡頭模組及一影像感測 Φ 器，該影像感測器與該鏡頭模組中之至少一鏡片相對設置。 相對於先前技術，本發明所述之鏡頭模組藉由於至少 一鏡片之支撐部配置微結構，可有效地防止光線之反射， 從而使包含該鏡頭模組之相機模組具防眩光作用，並可獲 得較佳之拍攝效果。 【實施方式】 下面將結合圖式對本發明作進一步之詳細說明。 請參閱圖1，本發明第一實施例提供之一種鏡頭模組 Ο 10,其包括一鏡筒11及收容於該鏡筒11内之至少一透鏡 100 〇 本實施例中，該至少一透鏡100之數目為三個，且該 三個透鏡100相互光學耦合，每個透鏡100具有一光學部 102，及一環繞該光學部102之支撐部104。該光學部102 用於對物體進行光學成像。該支撐部104用於支撐該光學 部102。該支撐部104之上表面1040、下表面1042藉由表 面處理（surface modification)形成有微結構。該微結構可為 凸起或凹槽，且其可設置為三角形、圓弧形、梯形等任意 200928541 .形狀。 該鏡筒11為一中空之圓柱體，其具有一圍成圓筒狀之 a侧壁110,以及從該側壁110之一端部延伸出來之前蓋體 112，該前蓋體112上開設有一圓錐形孔1120以控制進入 鏡筒11内之光線之光通量。 當外界光線藉由鏡筒11之圓錐形孔1120進入鏡筒11 内時，其大部分光線可依次透射過三個透鏡100之光學部 102,惟，亦有部分之光線可能照射至透鏡100之支撐部104 之上表面1040、下表面1042,由於本實施例中該支撐部104 ❹之上表面1040、下表面1042形成有微結構，故，當該部分 光線照射至該上表面1040、下表面1042上時，其將於該上 表面1040、下表面1042上發生散射及折射，從而破壞光線 於該三個透鏡100之間之反射條件。當然，進入鏡筒11之 外界光線中，還有部分可能到達鏡筒11之側壁110及其前 蓋體112之内表面1122並發生反射，故，可進一步藉由表 面處理於該鏡筒11之側壁110及其前蓋體112之内表面 1122形成微結構，除此之外，還可藉由採用具有低光反射 〇 率之塑膠，如黑色塑膠製成該鏡筒11，以達成防止光線於 鏡筒11之内表面1122及侧壁110發生反射之目的。可理 解，該鏡筒11除了可採用上述塑膠製成外，其亦可採用金 屬材料或其他材料製成。 本實施例中，該鏡頭模組10還設置有兩個間隔環 120，每個間隔環120為一圓環形中空塑膠板，該兩個間隔 環120設置於該三個透鏡100之間以對該三個透鏡1〇〇進 行間隔。同樣地，為防止光線於該兩個間隔環120之間發 生反射，每個間隔環120之所有表面1200可藉由表面處 200928541 .理’以於其上形成微結構。 進一步地’該鏡頭模組ίο還可包括一紅外截止濾光片 (IRcutfilter)13及一鏡座14。其中，該紅外截止濾光片13 收容於該鏡筒11内’並由另一間隔環122將其與透鏡1〇〇 間隔開來。當然’該另一間隔環122之所有表面122〇亦可 藉由表面處理形成微結構以破壞光於該所有表面122〇上之 反射條件。 該鏡座14具有一開設有内螺紋之第一内圓周面14〇， 對應地’該鏡筒11具有一開設有外螺紋之外圓周面ηι， 〇該鏡座14與該鏡筒U藉由該内螺紋與該外螺紋之相互嚙 合而連接於一起。如圖1所示，該鏡座14具有一第二内圓 周面142，該第二内圓周面ι42亦可藉由表面處理以形成微 結構。優選地，該鏡座14可採用具有低光反射率之塑膠， 如黑色塑膠等製成，以進一步防止光線於鏡座14之第一内 圓周面140與第二内圓周面Μ]發生反射。 本領域技術人員可理解，上述各透鏡1〇〇之支撐部 104、鏡筒11之侧壁11〇及其前蓋體112之内表面1122、 ©兩個間隔環120之所有表面12〇〇、另一間隔環122之所有 表面1220及鏡座14之第二内圓周面142上所形成之微結 構’其可採用化學姓刻法（cheinical etching)、暗砂處理法 (sand-blasting)、玻璃微珠表面處理（giass_beading)、錯射表 面蝕刻（laser surface etching)、等離子蝕刻（plasma etching)、鐳射點成型（laser spot forming)、雷射光束直寫技 術（laser-beam writing)、物理敍刻法（physical etching)、藏 擊钱刻法（sputter etching)以及反應離子敍刻法（reactive sputtering etching)等技術製成。該微結構之表面粗糙度 200928541200928541 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a lens module and a camera module using the same. [Prior Art] With the development of camera technology, lens modules have been widely used in camera devices for various purposes. The combination of lens modules and various portable electronic devices such as handheld devices and computers has won many consumers. Favor. @Lens module usually includes a lens barrel and optical components housed in the lens barrel. The optical component typically includes a lens, an infrared cut filter, and a spacer member for spacing the lens from the infrared cut filter, such as a spacer ring. For the design method of the lens, please refer to the paper published by Chao et al. in IEEE System and Ultrasonics Symposium 2000. Aspheric lens design ° Camera module combined with lens module and image sensor ( For example, a digital camera can achieve better shooting quality, so that the camera module can obtain a clear image is the basic requirement. However, since the lens module is usually provided with a plurality of lenses, the light is easily transmitted through the respective lenses while being reflected by the interfaces of the respective lenses, and the reflected light is partially reflected out of the camera module, and most of them can be The reflection finally reaches the image sensor and is sensed by the image sensor, so that the camera module generates glare, which leads to a decrease in the quality of the optical imaging, thereby deforming the distortion of the imaging surface. SUMMARY OF THE INVENTION An object of the present invention is to provide a lens module, and a camera module including the lens module of 200928541, which has an anti-glare function and can obtain a better shooting effect. A lens module and a camera module using the lens module will be described below by way of embodiments. A lens module includes a lens barrel and at least one lens received in the lens barrel, the at least one lens has an optical portion and a support portion surrounding the optical portion, and the surface of the support portion is configured with microstructure. A camera module includes the lens module and an image sensing Φ device, and the image sensor is disposed opposite to at least one of the lens modules. Compared with the prior art, the lens module of the present invention can effectively prevent the reflection of light by the micro structure of the support portion of at least one lens, so that the camera module including the lens module has an anti-glare effect, and Get better results. [Embodiment] Hereinafter, the present invention will be further described in detail with reference to the drawings. Referring to FIG. 1 , a lens module 10 according to a first embodiment of the present invention includes a lens barrel 11 and at least one lens 100 received in the lens barrel 11 . In the embodiment, the at least one lens 100 . The number is three, and the three lenses 100 are optically coupled to each other, and each lens 100 has an optical portion 102 and a support portion 104 surrounding the optical portion 102. The optical portion 102 is used for optical imaging of an object. The support portion 104 is for supporting the optical portion 102. The upper surface 1040 and the lower surface 1042 of the support portion 104 are formed with a microstructure by surface modification. The microstructure may be a protrusion or a groove, and it may be set to any shape such as a triangle, a circular arc, a trapezoid, or the like. The lens barrel 11 is a hollow cylinder having a cylindrical side wall 110 and a front cover body 112 extending from one end of the side wall 110. The front cover body 112 has a conical shape. The aperture 1120 controls the luminous flux of light entering the lens barrel 11. When external light enters the lens barrel 11 through the conical hole 1120 of the lens barrel 11, most of the light can be transmitted through the optical portion 102 of the three lenses 100 in sequence, but some light may be irradiated to the lens 100. The upper surface 1040 and the lower surface 1042 of the support portion 104. Since the upper surface 1040 and the lower surface 1042 of the support portion 104 are formed with a microstructure, the portion of the light is irradiated onto the upper surface 1040 and the lower surface. When it is above 1042, it will scatter and refract on the upper surface 1040 and the lower surface 1042, thereby destroying the reflection condition of the light between the three lenses 100. Of course, some of the light entering the outer wall of the lens barrel 11 may reach the inner surface 1122 of the lens barrel 11 and the front surface 1122 of the lens barrel 11 and reflect, so that the surface can be further processed by the lens barrel 11 The sidewall 110 and the inner surface 1122 of the front cover 112 form a microstructure, and in addition, the lens barrel 11 can be made of a plastic having a low light reflection rate, such as black plastic, to prevent light from being blocked. The inner surface 1122 and the side wall 110 of the lens barrel 11 are reflected. It can be understood that the lens barrel 11 can be made of a metal material or other materials in addition to the above plastic. In this embodiment, the lens module 10 is further provided with two spacer rings 120. Each spacer ring 120 is an annular hollow plastic plate. The two spacer rings 120 are disposed between the three lenses 100. The three lenses are spaced apart. Similarly, to prevent light from reflecting between the two spacer rings 120, all of the surface 1200 of each spacer ring 120 can be formed on the surface by a surface at which it is formed. Further, the lens module ίο may further include an IR cut filter 13 and a mirror holder 14. The infrared cut filter 13 is housed in the lens barrel 11 and is spaced apart from the lens 1 by another spacer ring 122. Of course, all of the surfaces 122 of the other spacer ring 122 may also be microstructured to form a microstructure to destroy the reflective conditions on all of the surfaces 122. The lens holder 14 has a first inner circumferential surface 14〇 with an internal thread, and correspondingly, the lens barrel 11 has an outer circumferential surface ηι with an external thread, and the lens holder 14 and the lens barrel U are The internal thread and the external thread are meshed with each other and joined together. As shown in Fig. 1, the lens holder 14 has a second inner circumferential surface 142 which can also be surface-treated to form a microstructure. Preferably, the lens holder 14 can be made of a plastic having a low light reflectivity, such as black plastic or the like, to further prevent light from being reflected by the first inner circumferential surface 140 and the second inner circumferential surface of the lens holder 14. Those skilled in the art can understand that the support portion 104 of each lens 1 , the side wall 11 of the lens barrel 11 and the inner surface 1122 of the front cover 112 and the surface 12 of the two spacer rings 120 are The microstructure formed on all of the surface 1220 of the spacer ring 122 and the second inner circumferential surface 142 of the lens holder 14 can be subjected to chemical etching, sand-blasting, glass. Beads surface treatment (lasss_beading), laser surface etching, plasma etching, laser spot forming, laser beam-beam writing, physical characterization It is made by techniques such as physical etching, sputter etching, and reactive sputtering etching. Surface roughness of the microstructure 200928541
Ra(surface roughness)可大於 100nm 而 小於ΙΟμιη，峰毅比 Rp-v(peak to valley ratio)可大於 lOOOnm 而小於 ΙΟΟμιη，優 選地’該表面粗糙度Ra可大於500nm而小於5μιη，該峰榖 比Rp-v可大於5000nm而小於50μιη。 本領域之技術人員同樣可理解，該微結構除了設置於 上述各透鏡100之支撐部104、鏡筒11之側壁110及其前 蓋體112之内表面1122、兩個間隔環120之所有表面1200、 另一間隔環122之所有表面1220以及鏡座14之第二内圓 周面142上外，其還可進一步形成於鏡頭模組1〇之其他 ❿面’如支撐部104之外圓環面1046、圓錐形孔1120之内壁、 連接鏡座14之第一内圓周面140與第二内圓周面142之間 之圓環形面144，只要其不位於鏡頭模組10之成像光路（如 圖1中虛線所示）且不阻擋到各透鏡1〇〇之光學成像，並可 防止光線於透鏡1〇〇、鏡筒11、兩個間隔環120、另一間隔 環122、紅外截止濾光片13以及鏡座14之間發生反射即 可，並不局限於具體實施例。 如圖2所示，本發明第二實施例所提供之一種相機模 〇組20 ’其包含本發明第一實施例所提供之鏡頭模組1〇，以 及一影像感測器25。 該影像感測器25設置且電連接於一電路板26上，並 與該電路板26 —起收容於鏡座14内，從而與鏡頭模組10 一起構成相機模組20,具體地，該影像感測器25與至少一 透鏡100相對，其通常用於感測圖像並產生對應於圖像之 電訊號’具體可為電荷搞合感測器（Charge Coupled Device ’ CCD)或互補金屬氧化物半導體感測器 (Complementary Metal-Oxide-Semiconductor，CMOS)。 200928541 . 另，該相機模組20還包括收容於鏡座14内之一透明 板27，其位於鏡筒11與影像感測器25之間以對影像感測 '器25起保護作用，如防止外界之灰塵沾落於影像感測器25 上，當然，該透明板27之上表面270亦可形成微結構，且 該微結構位於上表面270之外圓環形面上。 由於上述各透鏡100之支撐部104之上表面1040、下 表面1042、外圓環面1046、鏡筒11之側壁110及其前蓋 體112之内表面1122、圓錐形孔1120之内壁、兩個間隔環 120之所有表面1200、另一間隔環122之所有表面1220、 © 鏡座14之第二内圓周面142、圓環形面144以及透明板27 之上表面270上形成有微結構，該微結構可防止光線於透 鏡100、鏡筒11、兩個間隔環120、另一間隔環122、紅外 截止濾光片13、鏡座14以及透明板27之間發生反射並最 終導致相機模組20產生眩光現象，故，該相機模組20藉 由表面處理形成微結構後，可使得拍攝晝面真實逼真，從 而取得較佳之拍攝效果。 綜上所述，本發明確已符合發明專利之要件，遂依法 〇 提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明第一實施例提供之鏡頭模組之剖面示意 圖。 圖2係本發明第二實施例提供之相機模組之剖面示意 圖。 200928541 【主要元件符號說明】 鏡頭模組 10 ' 鏡筒 11 透鏡 100 光學部 102 支撐部 104 側壁 110 外圓周面 111 前蓋體 112 ❹ 間隔環 120、122 第一内圓周面140 第二内圓周面142 圓環形面 144 影像感測器 25 相機模組 20 紅外截止濾光片 13 鏡座 14 上表面 1040 下表面 1042 外圓環面 1046 圓錐形孔 1120 表面 1200 、 1220 内表面 1122 電路板 26 透明板 27 上表面 270 ❹ 11The Ra (surface roughness) may be greater than 100 nm and less than ΙΟμιη, and the peak to valley ratio may be greater than 100 nm and less than ΙΟΟμιη, preferably 'the surface roughness Ra may be greater than 500 nm and less than 5 μm. Rp-v may be greater than 5000 nm and less than 50 μm. It is also understood by those skilled in the art that the microstructures are disposed on the support portion 104 of each lens 100, the sidewall 110 of the lens barrel 11 and the inner surface 1122 of the front cover 112, and all surfaces 1200 of the two spacer rings 120. And the other inner surface 1220 of the spacer ring 122 and the second inner circumferential surface 142 of the lens holder 14 are further formed on the other surface of the lens module 1', such as the support portion 104, the torus 1046. The inner wall of the conical hole 1120, the annular surface 144 connecting the first inner circumferential surface 140 of the lens holder 14 and the second inner circumferential surface 142, as long as it is not located in the imaging optical path of the lens module 10 (Fig. 1) The optical image of each lens 1〇〇 is not blocked, and light is prevented from being applied to the lens 1〇〇, the lens barrel 11, the two spacer rings 120, the other spacer ring 122, and the infrared cut filter 13 And reflection between the mirror blocks 14 is not limited to the specific embodiment. As shown in FIG. 2, a camera module set 20' provided by a second embodiment of the present invention includes a lens module 1A according to a first embodiment of the present invention, and an image sensor 25. The image sensor 25 is disposed and electrically connected to a circuit board 26 and is housed in the lens holder 14 together with the circuit board 26 to form a camera module 20 together with the lens module 10. Specifically, the image sensor The sensor 25 is opposite to at least one lens 100, which is generally used for sensing an image and generating an electrical signal corresponding to the image. Specifically, it may be a Charge Coupled Device 'CCD or a complementary metal oxide. Semiconductor Element-Oxide-Semiconductor (CMOS). The camera module 20 further includes a transparent plate 27 received in the lens holder 14 between the lens barrel 11 and the image sensor 25 to protect the image sensing device 25, such as preventing The dust of the outside is stained on the image sensor 25. Of course, the upper surface 270 of the transparent plate 27 can also form a microstructure, and the microstructure is located on a circular outer surface of the upper surface 270. The upper surface 1040, the lower surface 1042, the outer annular surface 1046, the side wall 110 of the lens barrel 11 and the inner surface 1122 of the front cover 112, the inner wall of the conical hole 1120, and the inner wall of the support portion 104 of the lens 100 are respectively A microstructure is formed on all surfaces 1200 of the spacer ring 120, all surfaces 1220 of the other spacer ring 122, the second inner circumferential surface 142 of the mirror mount 14 , the circular annular surface 144 , and the upper surface 270 of the transparent plate 27 . The microstructure prevents light from being reflected between the lens 100, the lens barrel 11, the two spacer rings 120, the other spacer ring 122, the infrared cut filter 13, the mirror holder 14 and the transparent plate 27 and ultimately causes the camera module 20 to The glare phenomenon is generated. Therefore, the camera module 20 is formed into a microstructure by surface treatment, so that the camera face is realistic and realistic, thereby achieving better shooting results. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the present invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a lens module according to a first embodiment of the present invention. Fig. 2 is a schematic cross-sectional view showing a camera module according to a second embodiment of the present invention. 200928541 [Description of main component symbols] Lens module 10' Lens barrel 11 Lens 100 Optical part 102 Support part 104 Side wall 110 Outer circumferential surface 111 Front cover 112 间隔 Spacer 120, 122 First inner circumferential surface 140 Second inner circumferential surface 142 Circular Face 144 Image Sensor 25 Camera Module 20 IR Cut Filter 13 Mirror Seat 14 Upper Surface 1040 Lower Surface 1042 Outer Torus 1046 Conical Hole 1120 Surface 1200, 1220 Inner Surface 1122 Circuit Board 26 Transparent Plate 27 upper surface 270 ❹ 11