M359707 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種使被攝體光成像在感測器上的攝 影透鏡被組裝在内部的透鏡組裝體及具備此透鏡组裝體的 5攝影裝置。 ^ 【先前技術】 - 以往，習知的有使被攝體光成像在攝影元件等感測器 9 上的攝影透鏡被組裝在内部的透鏡組裝體。在此種透鏡組 10裝體中在透鏡框架和支架上設置精密螺合的外螺紋和内螺 紋來簡化支架和透鏡框架的卡合部的結構以謀求小型化， 同時通過透鏡框架旋入支架可簡單進行光軸對準。由於對 這種透鏡組裝體可以謀求超小型化’因此期待裝載於曰以 謀求小型薄型化的便攜設備’並且，通過精密螺紋的螺合 15可使支架持有防塵結構，所以，期待應用於設在車外的車 載用相機等。 Φ 圖1是表示其透鏡組裝體之構成的圖。 圖1所示的透鏡組裝體2,具備：支架20;内裝有攝影 透鏡210的透鏡框架21;和使由此透鏡框架21内的攝影透鏡 i〇 210捕獲的被攝體光成像的攝影元件22A。在此攝影元件 • 22人的上方裝配有爲保護攝影元件22A的玻璃罩22B。在透 鏡框架21設置外螺紋部211，在支架20設置螺合於此外螺紋 部211的内螺紋部201。在此例中成爲玻璃罩22B與攝影元 件22A—同由另一個支架22C維持的構成，因此，將另一個 -M359707 支架22C和維持在此支架22C的玻璃罩22B作爲構成感測器 的元件’並且包括攝影元件22A和玻璃罩22B和支架22C而 稱之爲感測器22。 組裝持有這些構成的透鏡組裝體2時，首先感測器22 5以喪合支架20的後端面的方式組裝後，透鏡框架21從支架 20的前端面即從與有感測器22側相反側旋入，通過透鏡框 架21的外螺紋211旋入於支架2〇的内螺紋部2〇 1，而簡單進 行透鏡組裝體2的組裝。 瞻進而，完成組裝後，通過沿光軸方向旋進或旋退透鏡 10框架21可簡单且精度良好地進行調焦。 然而，若爲上述構成，在通過相對於光軸將透鏡框架 21方疋進、$疋退而進行調焦時，有時由外螺紋部2丨丨和内螺紋 部201的滑動産生垃圾，且産生的垃圾落入到感測器22侧。 若落到感測器2 2侧的垃圾附著於構成感測器2 2的玻璃罩 I5 22B，則垃圾成遮光元件起作用，從而對成像在構成感測 器22的攝影元件22A的圖像帶來壞影響。 • 在專利文獻1中提出了通過在支架的外周設置螺紋， 防止垃圾侵入支架内部的技術，但是，若利用此技術會導 致支架的大型化。 20 【專利文獻1】特開2006-338026號公報 【新型内容】 4 M359707 本創作之主要目的係在於，解決上述問題點，提供一 種即使在透鏡框架的外周面和支架的内周面分別設置了螺 合的螺紋部，也不會在組裝後進行調焦時由螺紋部的滑動 而産生的垃圾進入到感測器的小型的透鏡組裝體及具備此 5透鏡組裝體的攝影裝置。 為達成上述目的，本創作的透鏡組裝體包含：支架， 在前端面和後端面具有開口，並具有連接此兩開口貫通的 中空，感測器，按嵌合上述後端面的開口的方式配置，並 馨 通過上述前端面的開口人射而來的被攝體光且生成圖 10像信號；攝影透鏡，將被攝體光成像在上述感測器上；透 鏡框架，捲繞上述攝影透鏡並維持該攝影透鏡。 上述透鏡框架’具有：外螺紋部，形成於上述透鏡框 架的外周面，並旋入上述支架的中空内壁；圓筒外壁部， 形成於上述透鏡框架的外周，比上述外螺紋部更靠射 15側’並接觸或接近上述支架的中空内璧。 上述支架在上述内璧具有：内螺紋部，旋入有上述外 螺紋部，81筒外壁部，與上㈣筒外壁部接觸或接近。 根據上述本創作的透鏡組裝體，上述透鏡框竿具備· 20 螺合於上述支架的内螺紋部的外螺紋部，還具備比該外螺 紋部更靠射出侧形成、接觸或接近上述支架的 圓筒外壁部。 二門土的 當上述透餘㈣m料壁部爲接觸或 架的中空内壁的構成時，可以通過圓筒外壁部和中1辟 使塵埃進人感測器侧的經路_或變得極細，例如;使= 5 M359707 過使外螺紋部螺合内螺紋部並使透鏡框架相對於感測器進 退來進行調焦，由外螺紋和内螺紋的滑動而産生的塵埃也 難以落到感測器側。 在此，上述圓筒外壁部形成爲比上述外螺紋部的溝底 5 更粗徑。 上述支架是上述透鏡框架從上述後端面的開口納入 到上述感測器組裝體的元件。 當爲上述構成時，不是如以往通過從支架的前端面即 ® 從被攝體側安裝透鏡框架且使透鏡框架旋進來安裝到支 10架，而是通過從支架的後端面的開口即感測器側將透鏡框 架插入且使其旋進而安裝到支架。 如此若作爲從後端面的開口插入透鏡框架的構成，將 比透鏡框架的外螺紋部更靠射出側形成的、上述圓筒外壁 部的直徑形成爲比外螺紋部的溝底更粗，所以，可以將在 15螺紋部産生的塵埃由在其圓筒外壁部粗徑的部分阻止住， 從而可以完全防止塵埃侵入感測器側。 鲁達成上述目的的本創作的攝影裝置包含：本創作的透 鏡組裝體和攝影元件。 如此，通過將本創作的小型透鏡組裝體組裝在攝影裝 20置’可以謀求攝影裝置的小型化。 如以上之說明，實現即使在透鏡框架和支架雙方分別 叹置了螺合的螺紋部，也不會在組裝後進行調焦時由螺紋 部的滑動而產生的灰塵進入感測器側的小型的透鏡組裝體 及具備此透鏡組裝體的攝影裝置。 6 25 M359707 【實施方式】 以下，參照附圖說明本創作的實施方式。 圖2是表示組裝有本創作的透鏡組裝體1和攝影元件 的攝影裝置的一例’帶有攝影鏡頭的手機3的外觀的圖。圖 5 2所示的帶有攝影鏡頭的手機3的透鏡11〇使用本創作的透 鏡組裝體。 圖3是表示本創作的一實施方式的透鏡組裝體1的 圖。圖4是圖3的透鏡組裝體1的分解圖，圖5是從圖4的左傾 斜前方觀察圖4的分解圖中的透鏡框架1〇和支架1丨和感測 10 器12的側視圖。 參照圖3至圖5簡單說明構成。 在圖3所示的透鏡組裝體1的支架10内收納有4群構成 的透鏡110。在此圖3的例中，與以往相同地，由爲了達成 小型化及組裝上的簡便化的2個理由，在透鏡框架11設置外 15螺紋部111 ’且在支架10設置與此外螺紋部1 η螺合的内螺 紋部101，通過將透鏡框架11旋入支架10而組裝透鏡組裝體 1 ° 如圖4、圖5所示，支架10,在前端面1〇Α和後端面1〇Β 具有開口 ’且具有連接此兩開口貫通的中空。如圖4、圖5 2〇所示，在此支架10的中空部旋入維持4群構成的透鏡的透鏡 框架11。進而’在與此支架10相反的一側具備支架12 A， 在此另一個支架12A内部保持上述的玻璃罩〗2b和攝影元 件12C。即，以此支架12A、玻璃罩ΐ2β和攝影元件12C構 成本創作中的感測器12之一例。 7 M359707 該感測器12按嵌合支架ι〇的後端面的開口的方式被 配置，由此感測器12内的攝影元件12C接受通過支架1〇的 刚端面的開口入射而來的被攝體光，並通過該攝影元件 12C生成圖像信號。 5 在此，參照圖4、圖5詳細說明透鏡組裝體1的構成。 如圖4、圖5所示’在透鏡組裝體1具備透鏡框架u， 該透鏡框架11捲繞用於在構成感測器12的攝影元件12C上 成像被攝體光的攝影透鏡11〇且保持此攝影透鏡11(^在其 透鏡框架11的透鏡框架外周面形成有旋入支架1〇的中空内 10壁的外螺紋部1 Π ’在其透鏡框架外周面的比外螺紋部111 更靠射出側’形成有接觸或接近支架10的中空内壁的圓筒 外壁部112。 另一方面’就支架10而言，在其内壁設置了旋入有上 述外螺紋部111的内螺紋部101，並且設置有接觸或接近上 15 述圓筒外壁部112的圓筒内壁部1〇2。 上述透鏡框架11的圓筒外壁部112形成爲比外螺紋部 111的溝底更粗徑，如圖4、圖5所示，支架1〇是將透鏡框架 11從支架10的後端面的開口納入的元件。 參照圖6對作用進行易於理解的說明。 2〇 圖6是從左傾斜上方觀察圖4的支架1〇的圖，和以圖中 的D-D線切斷此圖並從側方觀察切斷面的圖。 從圖6可知，在透鏡框架U的透鏡框架的外周面形成 有旋入支架10的中空内壁的外螺紋部丨丨丨，在此透鏡框架的 外周面的比外螺紋部111更靠射出側，設置有接觸或接近支 8 -M359707 架10的中空内壁102的圓筒外壁部112。另一方面，支架l〇 在其内壁設置有旋入有上述外螺紋部111的内螺紋部101， 而且，設置有接觸或接近上述圓筒外壁部112的圓筒内壁部 102 ° 5 進而，透鏡框架11的圓筒外壁部112形成爲比外螺紋 部111的溝底更粗徑，支架10是將透鏡框架Η從支架10的後 端面的開口納入的元件。 即，在以往’從支架10的前端側及被攝體側插入透鏡 ® 框架11，但在本創作中，從透鏡框架10的後端面側插入透 10鏡框架11’並將透鏡框架11的圓筒外壁部112的直徑形成爲 比外螺紋部111的溝底的直徑更大。 如此，在可以構成比外螺紋部丨i i的直徑還大的圓筒 外壁部112的情況下，當通過透鏡框架u旋進或旋退來進行 調焦時，即使由螺紋部的滑動產生塵埃，也可以在此圓筒 15外壁部112部分阻止塵埃，而防止塵埃侵入到位於透鏡的射 出側的感測器侧。 • 如以上說明，實現即使分別設置了螺合於透鏡框架和 支架的雙方螺紋部，也不會在域後進行調焦時由螺紋部 的滑動而産生的塵埃進入到感測器側的透鏡組裝體。 〇 #實現了這種透鏡組裝體，可搭載於日益謀求小型化 _的便攜設備，而且，可實現由精密螺紋的螺合而防止塵埃 侵入支架内的結構’因此，還可期待用作車載用透鏡等。 【圖式簡單說明】 9 M359707 圖1係表示以往透鏡組裝體構成之圖。 圖2係表示組裝有本創作透鏡組裝體丨和攝影元件的攝影裝 置之一例的帶有攝影鏡頭的手機3的外觀的圖。 圖3係本創作一實施方式透鏡組裝體的外觀圖。 5圖4係圖2的透鏡組裝體的分解圖。 圖5係從左下方觀察圖3分解圖中的透鏡框架、第1支架及第 2支架的側視圖。 圖6係從左傾斜上方觀察圖3的支架1〇的圖，及以圖中的 D-D線切斷此圖並從侧方觀察切斷面的圖。 【主要元件符號說明】 10 1 透鏡組裝體 10 透鏡支架 11 透鏡框架 12 感測器 12A 支架 12B 玻璃罩 15 12C 攝影元件 101 内螺紋部 102 • 圓筒内壁部 110 透鏡 111 外螺紋部 112 圓筒外壁部M359707 V. New description: [New technical field] This is a lens assembly in which a photographic lens for imaging a subject light on a sensor is assembled and a 5 lens having the lens assembly Device. [Prior Art] Conventionally, there has been known a lens assembly in which an imaging lens for imaging a subject image on a sensor 9 such as a photographic element is incorporated. In the lens assembly 10, a precision screwed external thread and an internal thread are provided on the lens frame and the bracket to simplify the structure of the engaging portion of the bracket and the lens frame for miniaturization, and the bracket is screwed into the bracket through the lens frame. Simply perform optical axis alignment. Since such a lens assembly can be miniaturized, it is expected to be mounted on a portable device that is small and thin, and the screw 15 of the precision screw can hold the holder with a dustproof structure. Therefore, it is expected to be applied to the design. A car camera or the like outside the car. Φ Fig. 1 is a view showing the configuration of a lens assembly. The lens assembly 2 shown in FIG. 1 includes a holder 20, a lens frame 21 in which the photographic lens 210 is housed, and a photographic element that images the subject light captured by the photographic lens i 〇 210 in the lens frame 21. 22A. A glass cover 22B for protecting the photographic element 22A is mounted on the photographic element • 22 people. The male screw portion 211 is provided in the lens frame 21, and the female screw portion 201 screwed to the other screw portion 211 is provided in the bracket 20. In this example, the glass cover 22B and the photographing element 22A are held together by the other holder 22C. Therefore, the other -M359707 holder 22C and the cover glass 22B held in the holder 22C are used as the elements constituting the sensor. Also included is a photographic element 22A and a glass cover 22B and a bracket 22C, which are referred to as sensors 22. When the lens assembly 2 having these configurations is assembled, first, the sensor 22 is assembled so as to smash the rear end surface of the holder 20, and the lens frame 21 is opposite from the front end surface of the holder 20, that is, opposite to the sensor 22 side. The side screw is inserted, and the external thread 211 of the lens frame 21 is screwed into the female screw portion 2〇1 of the holder 2〇, and the assembly of the lens assembly 2 is simply performed. Further, after the assembly is completed, focusing can be easily and accurately performed by screwing in or retracting the lens frame 21 in the optical axis direction. However, in the above-described configuration, when the lens frame 21 is folded and retracted by the optical axis with respect to the optical axis, the garbage may be generated by the sliding of the male screw portion 2 and the female screw portion 201, and The generated garbage falls to the side of the sensor 22. If the garbage falling on the side of the sensor 2 2 is attached to the cover glass I5 22B constituting the sensor 22, the garbage acts as a light blocking member, thereby imaging the image band of the imaging element 22A constituting the sensor 22. Come bad. • Patent Document 1 proposes a technique of preventing the intrusion of garbage into the inside of the holder by providing a thread on the outer circumference of the holder. However, the use of this technique leads to an increase in size of the holder. [Patent Document 1] JP-A-2006-338026 [New Content] 4 M359707 The main purpose of the present invention is to solve the above problems, and to provide an outer peripheral surface of a lens frame and an inner peripheral surface of a holder, respectively. The threaded portion of the screw does not enter the small lens assembly of the sensor and the imaging device including the five lens assembly, which is generated by the sliding of the screw portion when the focus is adjusted after assembly. In order to achieve the above object, the lens assembly of the present invention comprises: a bracket having an opening at the front end surface and the rear end surface, and having a hollow connecting the openings, the sensor is disposed in such a manner as to fit the opening of the rear end surface, Forming the image signal of FIG. 10 through the opening of the front end surface and generating an image signal of FIG. 10; the photographic lens images the subject light on the sensor; the lens frame winds the photographic lens and maintains The photographic lens. The lens frame ′ has an externally threaded portion formed on an outer circumferential surface of the lens frame and screwed into a hollow inner wall of the holder, and a cylindrical outer wall portion formed on an outer circumference of the lens frame and facing the external thread portion. Side 'and in contact with or close to the hollow medial malleolus of the above stent. The bracket has an internal thread portion in which the external thread portion is screwed, and 81 outer wall portion is in contact with or close to the upper (four) cylinder outer wall portion. According to the lens assembly of the present invention, the lens frame 竿 20 is screwed to the male screw portion of the female screw portion of the holder, and further includes a circle formed on the emitting side of the male screw portion, in contact with or close to the bracket. The outer wall of the cylinder. When the above-mentioned permeable (four) m material wall portion is a hollow inner wall of a contact or a frame, the outer wall portion and the middle portion of the cylinder can be made to pass the dust into the sensor side or become extremely thin, for example, ; = 5 M359707 The external threaded portion is screwed into the internal thread portion and the lens frame is advanced and retracted relative to the sensor for focusing, and the dust generated by the sliding of the external thread and the internal thread is also difficult to fall to the sensor side. . Here, the cylindrical outer wall portion is formed to have a larger diameter than the groove bottom 5 of the male screw portion. The bracket is an element in which the lens frame is incorporated into the sensor assembly from the opening of the rear end surface. In the above configuration, the lens frame is attached from the front end surface of the holder, that is, from the side of the holder, and the lens frame is screwed in to the support frame 10, and is sensed by the opening from the rear end surface of the holder. The lens side inserts the lens frame and rotates it to mount to the bracket. When the lens frame is inserted into the lens frame from the opening of the rear end surface, the diameter of the cylindrical outer wall portion formed on the injection side of the external thread portion of the lens frame is made thicker than the groove bottom of the male screw portion. The dust generated at the 15 thread portion can be blocked by the portion having the large diameter of the outer wall portion of the cylinder, so that the dust can be completely prevented from invading the sensor side. The photographic apparatus of the present invention, which achieves the above purposes, includes: a lens assembly and a photographic element of the present invention. As described above, it is possible to reduce the size of the imaging device by assembling the small lens assembly of the present invention in the imaging device. As described above, even if the screwed portion is slanted on both the lens frame and the holder, the dust generated by the sliding of the threaded portion does not enter the sensor side when the focus is adjusted after assembly. A lens assembly and an imaging device including the lens assembly. 6 25 M359707 [Embodiment] Hereinafter, an embodiment of the present creation will be described with reference to the drawings. Fig. 2 is a view showing an outer appearance of an example of an image pickup apparatus incorporating the lens assembly 1 of the present invention and an image pickup device. The lens 11 of the mobile phone 3 with a photographic lens shown in Fig. 5 2 uses the lens assembly of the present invention. Fig. 3 is a view showing a lens assembly 1 according to an embodiment of the present invention. 4 is an exploded view of the lens assembly 1 of FIG. 3, and FIG. 5 is a side view of the lens frame 1A and the holder 1 and the sensor 12 in the exploded view of FIG. 4 as viewed from the left oblique front side of FIG. The configuration will be briefly described with reference to Figs. 3 to 5 . In the holder 10 of the lens assembly 1 shown in Fig. 3, a lens 110 of four groups is housed. In the example of FIG. 3, in the same manner as in the related art, the outer 15 screw portion 111' is provided in the lens frame 11 and the screw portion 1 is provided in the bracket 10 for two reasons of miniaturization and simplification of assembly. The n-threaded internal thread portion 101 assembles the lens assembly 1 by screwing the lens frame 11 into the holder 10. As shown in Figs. 4 and 5, the holder 10 has a front end face 1 and a rear end face 1 The opening 'and has a hollow connecting the two openings. As shown in Fig. 4 and Fig. 5, a lens frame 11 for holding a lens of four groups is screwed into the hollow portion of the holder 10. Further, the holder 12A is provided on the side opposite to the holder 10, and the glass cover 〖2b and the photographic element 12C are held inside the other holder 12A. That is, the bracket 12A, the cover glass 2β, and the photographic element 12C constitute an example of the sensor 12 in the creation. 7 M359707 The sensor 12 is disposed in such a manner as to open the rear end surface of the bracket ι, whereby the photographic element 12C in the sensor 12 receives the incident from the opening of the rigid end face of the bracket 1〇. The body light is generated by the imaging element 12C. 5 Here, the configuration of the lens assembly 1 will be described in detail with reference to FIGS. 4 and 5. As shown in FIGS. 4 and 5, the lens assembly 11 is provided with a lens frame 11 that winds a photographic lens 11 for imaging subject light on the photographic element 12C constituting the sensor 12 and holds it. The photographic lens 11 is formed on the outer peripheral surface of the lens frame of the lens frame 11 with the externally threaded portion 1 Π ' of the hollow inner wall 10 that is screwed into the bracket 1 更. The outer peripheral surface of the lens frame is more protruded than the male screw portion 111. The side 'is formed with a cylindrical outer wall portion 112 that contacts or approaches the hollow inner wall of the bracket 10. On the other hand, in terms of the bracket 10, an internal thread portion 101 into which the above-described external thread portion 111 is screwed is provided on the inner wall thereof, and is provided There is a cylindrical inner wall portion 1〇2 that contacts or approaches the cylindrical outer wall portion 112. The cylindrical outer wall portion 112 of the lens frame 11 is formed to have a larger diameter than the groove bottom of the male screw portion 111, as shown in FIG. As shown in Fig. 5, the bracket 1 is an element that incorporates the lens frame 11 from the opening of the rear end surface of the bracket 10. The operation will be easily understood with reference to Fig. 6. Fig. 6 is a view of the bracket 1 of Fig. 4 viewed from the left obliquely upward. 〇 the diagram, and cut the diagram with the DD line in the figure and from the side Fig. 6 shows that the outer peripheral surface of the lens frame of the lens frame U is formed with a male screw portion 旋 screwed into the hollow inner wall of the bracket 10, and the outer peripheral surface of the lens frame is externally threaded. The portion 111 is further disposed on the exit side, and is provided with a cylindrical outer wall portion 112 that contacts or approaches the hollow inner wall 102 of the bracket 8 - M359707. On the other hand, the bracket 10 is provided on the inner wall thereof with the external thread portion 111 screwed thereinto. The female screw portion 101 is provided with a cylindrical inner wall portion 102° 5 that contacts or approaches the cylindrical outer wall portion 112. Further, the cylindrical outer wall portion 112 of the lens frame 11 is formed to have a larger diameter than the groove bottom portion of the male screw portion 111. The holder 10 is an element that incorporates the lens frame Η from the opening of the rear end surface of the holder 10. That is, the lens frame 11 is inserted from the front end side and the subject side of the holder 10 in the related art, but in the present invention, the lens is used. The rear end surface side of the frame 10 is inserted into the 10 mirror frame 11' and the diameter of the cylindrical outer wall portion 112 of the lens frame 11 is formed to be larger than the diameter of the groove bottom of the male screw portion 111. Thus, the outer thread portion can be formed.丨ii has a large diameter cylinder In the case of the outer wall portion 112, when focusing is performed by the lens frame u being screwed in or retracted, even if dust is generated by the sliding of the screw portion, dust can be partially prevented in the outer wall portion 112 of the cylinder 15 to prevent dust from entering. To the sensor side on the exit side of the lens. • As explained above, even if the screw threads of both the lens frame and the bracket are provided separately, the sliding of the threaded portion is not performed when the focus is adjusted after the field. The generated dust enters the lens assembly on the sensor side. 〇# This lens assembly can be mounted on a portable device that is increasingly miniaturized, and it is possible to prevent dust from entering by screwing of a precision screw. The structure inside the holder is therefore expected to be used as a vehicle lens or the like. BRIEF DESCRIPTION OF THE DRAWINGS 9 M359707 FIG. 1 is a view showing a configuration of a conventional lens assembly. Fig. 2 is a view showing the appearance of a cellular phone 3 with a photographic lens which is an example of a photographic apparatus in which the photographic lens assembly and the photographic element are assembled. Fig. 3 is an external view of a lens assembly according to an embodiment of the present invention. 5 is an exploded view of the lens assembly of FIG. 2. Fig. 5 is a side view of the lens frame, the first holder, and the second holder in the exploded view of Fig. 3 as seen from the lower left side. Fig. 6 is a view of the bracket 1A of Fig. 3 as viewed from the upper left oblique direction, and a view in which the figure is cut by the D-D line in the figure and the cut surface is viewed from the side. [Main component symbol description] 10 1 Lens assembly 10 Lens holder 11 Lens frame 12 Sensor 12A Bracket 12B Glass cover 15 12C Photographic element 101 Internal thread portion 102 • Cylinder inner wall portion 110 Lens 111 External thread portion 112 Cylinder outer wall unit