M358313 五、新型說明： 【新型所屬之技術領域】 本創作有關於一種安裝在攝影元件上成像被攝體光 的透鏡的透鏡組裝體、及具備該透鏡組裝體的攝影裝置。 5 【先前技術】 現有以來，習知透鏡組裝體具備：在Ccd攝影元件等 攝影元件上成像被攝體光的攝影透鏡、收納該攝影透鏡的 鏡同、按塵收納在該鏡筒的攝影透鏡的周緣部的壓環、安 10 裝有上述攝影元件的透鏡架。 圖10是表示切開習知透鏡組裝體的安裝透鏡架之前的 結構的一部分的立體圖。 圖10中表示有構成透鏡組裝體100的攝影透鏡1〇1、收 納該攝影透鏡101的鏡筒102、按壓該攝影透鏡101的周緣部 15的壓環103。壓環1〇3被配備在鏡筒1〇2的内壁面的與被攝體 光A入射的前端側相反側的後端側。詳細而言，在壓環i们 的外壁面形成有陽螺紋1 〇3a，並且在鏡筒1 〇2的内壁面後端 側形成有陰螺紋1 02a ’透過上述陽螺紋丨03a螺入到此陰螺 紋102a，壓環103被固定在鏡筒102的内壁面的後端側。而 2〇且，在鏡筒102的外壁面形成有陽螺紋1 〇2b。 圖11是表示切開圖10所示的透鏡組裝體的安裝透鏡架 以後的結構的一部分的立體圖。 圖11表示有組裝體100，該組裝體1〇〇具備上述的攝影 透鏡101、鏡筒102、壓環1〇3、及安裝在鏡筒1〇2的透鏡架 3 M358313 104 ° 需要說明的是，透鏡架104實際上具有用於將此透鏡架 104安裝在鏡筒102的前框及用於安裝攝影元件的後框，但 爲了方便，此處僅圖示透鏡架104的前框。在此透鏡架1〇4 5的前框的内壁面形成有陰螺紋l〇4a，透過在此陰螺紋1〇如 螺入形成於鏡筒102的外壁面的陽螺紋1〇2b，而在鏡筒1〇2 安裝有透鏡架104。 圖12是表示切開與習知的圖1〇、圖丨丨所示的透鏡組裝 體不同的透鏡組裝體的安裝透鏡架之前的結構的一部分的 10 立體圖。 圖12表示有構成透鏡組裝體200的攝影透鏡201、收納 該攝影透鏡201的鏡筒202、按壓該攝影透鏡2〇1的周緣部的 壓環203。壓環203配備在鏡筒202的外壁面的與被攝體光A 入射的前端側相反側的後端側。詳細而言，在鏡筒2〇2的外 I5壁面的對應於上述周緣部的後端側形成陽螺紋2〇2&，並且 在壓環203的内壁面形成有陰螺紋2〇3&，透過上述陽螺紋 202a螺入到此陰螺紋2〇3a，壓環2〇3固定在鏡筒的外壁 面的後端側。而且，在除去鏡筒2〇2的外壁面的固定有壓環 203的後端側的前端側’形成有陽螺紋2〇沘。 ?〇 圖13是表示切開圖12所示的透鏡組裝體的安裝透鏡架 以後的結構的一部分的立體圖。 圖13表示有透鏡組裝體200,該透鏡組裝體2〇〇具備上 述的攝影透鏡201、鏡筒2〇2、壓環2〇3、及安裝在鏡筒 的透鏡架204。詳細而言，在透鏡組裝體2〇4的内壁面形成 4 M358313 有陰螺紋204a，透過在此陰螺紋2〇4a螺入形成於鏡筒2〇2 的外壁面前端側的陽螺紋202b，而在鏡筒2〇2安裝有透鏡架 . 204 。 $ • 至於上述的透鏡組裝體1 〇〇、2〇〇 ,期待應用於車載相 5機等的同時，也可謀求超小型化，所以，期待裝載於日益 小、薄型化的手機等攜帶設備。 進一步，在專利前案1中，提出具備可共有視角（外徑） 不同的各種廣角透鏡的透鏡主體、和按壓保持在該鏡筒主 .It的廣角透鏡的按塵部件的透鏡組裝體。根據此透鏡組裝 10體，在組裝視角不同的透鏡時，不僅鏡筒主體内側，而且 鏡筒主體前端面也作爲配置空間利用，所以，與適合於各 種廣角透鏡地在鏡筒主體内側設置多段的透鏡座時相比， 可將鏡筒主體的向光軸方向的尺寸控制得短。 專利刚案1 :日本專利公開1 2 3 4 5 6〇〇7_279557號公報。 15 在上述習知透鏡組裝體100中，需要在鏡筒102的内壁 面的後端側形成用於固定壓環103的陰螺紋102&。由此，鏡 5 1 筒102的向光軸方向的尺寸需要相當於用於形成此陰螺紋 2 102a的工間1(壓環的嵌合長度量）範圍的長尺寸。因而， 存在缺乏小型化的問題。 3 2〇 而且’在習知的透鏡組裝體200中，需要在鏡筒202的 4 外土面的㈤端側形成用於安裝透鏡架2〇4的陽螺紋2〇2b。因 5 此透鏡罙204的陰螺紋2〇4a也必須形成於透鏡架的前端 6 側所以透鏡架204的尺寸變大。因而，在該透鏡組裝體 7 200也有缺乏小型化的問題。 M358313 進而專利刖案i所提出的透鏡組裝體是在鏡筒主體 按壓部件的構成’因此，鏡筒主體的向光軸方向的 寸：要相當於用於結合此按壓部件的空間量範圍的長尺 .寸因而，仍存在缺乏小型化的問題。 【新型内容】 本創作就是鑒於上述問題而作出，該目的在於，提供 種謀求小型化的透鏡組裝體及攝影裝置。 且借爲VI成上述目的’本創作提供—種透鏡組裝體，其 ^^^ 弟螺紋，且收納上述透鏡的 ，兄同’在内壁面形成有與形成於上述 紋螺合的第二螺紋，並且在外辟而η 「土"^弟螺 m . , 土面形成有透鏡架安裝用的 弟二螺、、文，按壓收納於上述鏡筒的透鏡的周緣部的壓環。 15 20 第trr透鏡組裝體是透過螺合形成於鏡筒外壁面的 二:螺：和：成㈣環内壁面的第二螺紋，將塵環固定在 ;二⑽過形成於壓環的外壁面的第三螺紋而將透鏡 的結構。根據此構成，在鏡筒外壁面的對岸 2鏡周緣部的部分固㈣環，因而，與習知的在_ 壁面形成用於固定壓環的吟蟫 方β — Μ ㈣◎螺紋的技術相比，可將向光軸 了厂 縮短爲相當於用於形成上述陰螺紋的空間量 的=:量）範圍。另外，根據此構成，《環 對應於透鏡周緣部的部分安裝透鏡架，因而： w知的在鏡筒的外壁面的前端側形成用於安裳透鏡架的 %螺紋的技術相比，可將向光 、 用於形成上述_紋的的尺寸縮短爲相當於 j二间里（透鏡架的嵌合長度量）範 6 25 M358313 圍。進而’與在專利前案丨提出 的技術相比，可將向光軸方向 合上述按壓部件的空間量範圍 的小型化。 的在鏡筒主體結合按壓部件 的尺寸縮短爲相當於用於結 。因而’可謀求透鏡組裝體 5 泣匕處，較爲理想的是，上述鏡筒具有圓筒狀的第一滑 動接觸面，在上述鏡筒的外壁面形成上述第一螺紋，並且 在該^的外壁面螺合上述塵環時，該第—滑動_㈣ 上述壓環的内壁面滑動接觸。 上述壓環具有圓環狀的第二滑動接觸面，在上述壓環 1〇的内壁面形成上述第二螺紋，並且在該壓環的内壁面螺合 上述鏡筒時’该第二滑動接觸面與該鏡筒的上述第一滑動 接觸面滑動接觸。 15 20 在鏡筒外壁面固定壓環時，僅僅將形成於鏡筒外壁面 的第-螺紋螺人到形成於壓環的内壁面的第二螺紋，由於 在這些第-、第二螺紋彼此之間發生的鬆動導致安裝於 壓環的外壁面的透鏡架的安裝精度下降。於是，在安裝於 該透鏡架的攝影it件和透鏡之間發生誤差。因此，透過在 鏡筒外壁面設置滑動接觸面，並且在壓環的内壁面嗖置滑 動接觸面，並使這些滑動接觸面彼此相互滑動接觸，從而 可抑制鏡筒和壓環之間的鬆動。由此，可提高安裳於屢環 的外壁面的透鏡架的安裝精度。 而且，較爲理想的狀態是，上述塵環具有螺紋鎖定用 黏結孔’該螺紋鎖定用黏結孔貫通内周面和外周面之間， 且向該外周面開設的開σ大於向該内周面開設的開口。 7 M358313 這樣一來，即使在黏結劑的注入量多時，螺紋鎖定用 黏結孔所具有的大開口起到積存黏結劑的作用，防止黏結 劑從螺紋鎖定用黏結孔溢出並黏結於壓環的外壁面而^ 透鏡架的安裝帶來障礙。因而’在注入黏結劑時，盔須極 5力細微地調整黏結劑的注入量，而可提高透鏡組裝體的操 作性。 進而，純爲理想的是，上述壓環具有螺紋鎖定用黏 結槽，該螺紋鎖定用黏結槽向内周面和外周面雙方開口， 並沿著上述透鏡的光軸方向延伸，且一端到達該壓環的端 10 面。 —若具有這樣的螺紋鎖定用黏結槽，則在壓環的外壁面 安裝透鏡架的狀態下，即可從壓環的端面側注入黏結劑。 f而’可同時進行鏡筒、壓環、透鏡架的黏結，而能夠提 局透鏡組裝體的操作性。 另外還較爲理想的狀態是，形成於上述壓環的内壁 面的上述第二螺紋，和形成於該壓環的外壁面的上述第三 螺紋形成爲彼此相反的螺紋。 4 k樣’若第二螺紋和第三螺紋形成爲彼此相反的螺 貝J使鏡筒向規定的旋轉方向旋轉，而可從透鏡組裝體 堇拆卸鏡筒’並且透過使鏡筒向與規定的旋轉方向相反的 2轉方向％轉，而可從透鏡組裝體僅拆卸透鏡架。因而， 能夠自如分解透鏡組裝體。 進而還較爲理想的是，上述壓環具有圓頭槽（蟹眼 才曹、乂7 一 v 、、接-\ _χ 该圓頭槽在安裝上述透鏡架時，用於將 8 M358313 該壓環螺入到該透鏡架中。 在組裝透鏡^體時，透過將夾具插入到 向規疋方向方疋轉而固定於鏡 環旋韓扪壓王衣的0頭槽’以使該壓 衣疋轉從而被固定的壓環相對於鐙η χ& 透鏡架固定在壓環上。對於鏡同不㈣動，而可將 二：還二爲理想的是，上述透鏡組裝體具備透鏡架， 成於上述壓環的外壁面的第三螺紋螺入 的第四螺紋。 若這樣，則可簡單地將透鏡架安裝於壓環。 10 15 2〇 π Λ*!，達成上述目的的本創作的攝影裝置的特徵在 於，八備上述透鏡組裝體及攝影裴置。 丨乍的攝如元件疋具備上述透鏡組裝體的結構，故 可貫現小型化。 根據本創作，可提供—種謀求小型化了的透鏡組裝體 及攝影裝置。 【實施方式】 以下’參照圖式說明本創作的實施方式。 圖1是表示切開本創作的第一實施方式的透鏡組裝體 的安裝透鏡架之前的結構的局部的立體圖。 在圖1表不有構成本創作的第一實施方式的透鏡組製 體10的攝〜透鏡11、收納該攝影透鏡^的鏡筒^、按壓該 攝影透鏡11的周緣部的壓環i 3。 在鏡筒12的外壁面形成有陽螺紋12a (相當於-例本創 作的第螺、、文）*且，塵環13中，該壓環Η的内壁面形 25 M358313 成有與Φ成於鏡筒丨2的外壁面的陽螺紋〗2a螺合的陰螺紋 13a (相當於一例本創作的第二螺紋）。具體而言，在鏡筒 12的外壁面的對應於攝影透鏡11的周緣部的部分形成有陽 螺紋1並透過此陽螺紋12a螺入到形成於壓環13的内壁 5面的陰螺紋13a，將壓環13固定於鏡筒12。進而，壓環13 中，在該壓環13的外壁面形成有後述的透鏡架14的安裝用 的陽螺紋13b (相當於一例本創作的第三螺紋）。 圖2是表示切開圖丨所示的透鏡組裝體的安裝透鏡架 之後的結構的局部的立體圖。 10 在圖2表不有具備上述的攝影透鏡11、鏡筒12、壓環 13'及安裝在該壓環13的外壁面的透鏡架14的透鏡組裝體 1〇。需要說明的是，透鏡架實際上具有用於將此透鏡架 14安裝在壓環13的前框及用於安裝攝影元件的後框，但此 處爲了方便，只圖示出透鏡架14的前框。在透鏡架14的前 is框的内壁面形成有形成於壓環13的外壁面的陽螺紋13b螺 入的陰螺紋14a (相當於一例本創作的第四螺紋）。透過形 成於壓環13的外壁面的陽螺紋13b螺入此陰螺紋i4a，而將 透鏡架14安裝在壓環13。 在第一實施方式的透鏡組裝體1〇中，在鏡筒12的外壁 20面的對應於攝影透鏡11的周緣部的部分固定有屋環13，因 此’與習知的形成用於將壓環固定在鏡筒内壁面的陰螺紋 的技術相比’可將向光轴方向的尺寸縮短爲相當於用於形 成上述陰螺紋的空間量（壓環的嵌合長度量）範圍。而且， 在壓環13的外壁面的對應於攝影透鏡1 1的周緣部的部分安 M358313 裝透鏡架14目此，與習知的在鏡筒外壁面的前端側形成 用於安裝透鏡㈣陽㈣的技術相比，可將向光軸方向的 尺寸縮Μ爲相當於料形成上述陽螺㈣空間4 (透鏡架 二:欠合長度量）範圍。進一步’與在專利前案以開的將按 坚科結合在鏡筒主體的技術相比，可將向光軸方向的尺 寸縮短爲相當於用於結合上述按壓部件的空間量範圍。因 而可謀求透鏡組裝體10的小型化。M358313 V. New Type of Description: [Technical Field of the Invention] The present invention relates to a lens assembly in which a lens for imaging subject light is mounted on a photographing element, and a photographing apparatus including the lens assembly. [Prior Art] Conventionally, a conventional lens assembly includes an imaging lens that images subject light on an imaging element such as a Ccd imaging element, a mirror that houses the imaging lens, and a lens that is stored in the lens barrel by dust. The pressure ring of the peripheral portion and the lens holder of the above-mentioned photographic element are mounted. Fig. 10 is a perspective view showing a part of a structure before a lens holder of a conventional lens assembly is cut. In Fig. 10, a photographing lens 1?1 constituting the lens assembly 100, a lens barrel 102 for accommodating the photographing lens 101, and a pressure ring 103 for pressing the peripheral edge portion 15 of the photographing lens 101 are shown. The pressure ring 1〇3 is provided on the rear end side of the inner wall surface of the lens barrel 1〇2 on the side opposite to the front end side on which the subject light A is incident. Specifically, a male screw 1 〇 3a is formed on the outer wall surface of the pressure ring i, and a female screw 102a is formed on the rear end side of the inner wall surface of the lens barrel 1 〇 2 through the male screw 丨 03a. The female screw 102a and the pressure ring 103 are fixed to the rear end side of the inner wall surface of the lens barrel 102. Further, a male screw 1 〇 2b is formed on the outer wall surface of the lens barrel 102. Fig. 11 is a perspective view showing a part of the configuration of the lens assembly shown in Fig. 10 after the lens holder is attached. Fig. 11 shows an assembled body 100 including the above-described photographing lens 101, lens barrel 102, pressure ring 1〇3, and lens holder 3 attached to the lens barrel 1〇2 M358313 104°. The lens holder 104 actually has a front frame for mounting the lens holder 104 to the lens barrel 102 and a rear frame for mounting the photographic element, but for convenience, only the front frame of the lens holder 104 is illustrated here. The inner wall surface of the front frame of the lens holder 1〇45 is formed with a female screw 104a, through which the female screw 1 is screwed into the male thread 1〇2b formed on the outer wall surface of the lens barrel 102, and is mirrored. A lens holder 104 is attached to the barrel 1〇2. Fig. 12 is a perspective view showing a part of the structure before the lens holder is attached to the lens assembly different from the conventional lens assembly shown in Fig. 1 and Fig. 12; Fig. 12 shows an imaging lens 201 constituting the lens assembly 200, a lens barrel 202 housing the imaging lens 201, and a pressure ring 203 for pressing the peripheral edge portion of the imaging lens 2'1. The pressure ring 203 is provided on the rear end side of the outer wall surface of the lens barrel 202 on the side opposite to the front end side on which the subject light A is incident. Specifically, a male screw 2〇2& is formed on the rear end side of the outer peripheral wall portion of the lens barrel 2〇2 corresponding to the peripheral edge portion, and a female screw 2〇3& is formed on the inner wall surface of the pressure ring 203, through The male screw 202a is screwed into the female screw 2〇3a, and the pressure ring 2〇3 is fixed to the rear end side of the outer wall surface of the lens barrel. Further, a male screw 2' is formed on the distal end side of the rear wall side to which the pressure ring 203 is fixed, except for the outer wall surface of the lens barrel 2''. Fig. 13 is a perspective view showing a part of the configuration of the lens assembly shown in Fig. 12 after the lens holder is attached. Fig. 13 shows a lens assembly 200 comprising the above-described photographing lens 201, a lens barrel 2, a pressure ring 2〇3, and a lens holder 204 attached to the lens barrel. Specifically, 4 M358313 has a female screw 204a formed on the inner wall surface of the lens assembly 2〇4, and the male screw 202b is inserted into the front end side of the outer wall surface of the lens barrel 2〇2 through the female screw 2〇4a. A lens holder is mounted on the lens barrel 2〇2. 204. The lens assembly 1 〇〇 and 2 上述 are expected to be used in a vehicle-mounted phase 5 or the like, and are also required to be miniaturized. Therefore, it is expected to be mounted on portable devices such as mobile phones that are becoming smaller and thinner. Further, in Patent PRIOR ART 1, a lens assembly including a lens main body having various wide-angle lenses having different viewing angles (outer diameters) and a dust-receiving member for pressing a wide-angle lens held by the main cylinder of the lens barrel are proposed. According to the lens assembly 10, when assembling lenses having different viewing angles, not only the inside of the barrel main body but also the front end surface of the barrel main body is used as an arrangement space. Therefore, a plurality of stages are provided inside the barrel main body suitable for various wide-angle lenses. The size of the lens barrel main body in the optical axis direction can be controlled to be shorter than in the case of the lens holder. Patent No. 1: Japanese Patent Publication No. 1 2 3 4 5 6〇〇7_279557. In the above-described conventional lens assembly 100, it is necessary to form a female screw 102& for fixing the pressure ring 103 on the rear end side of the inner wall surface of the lens barrel 102. Therefore, the dimension of the cylinder 51 in the direction of the optical axis needs to be a long dimension corresponding to the range of the work 1 (the amount of fitting length of the pressure ring) for forming the female screw 2 102a. Therefore, there is a problem of lack of miniaturization. 3 2 〇 Further, in the conventional lens assembly 200, it is necessary to form the male screw 2〇2b for mounting the lens holder 2〇4 on the (five) end side of the outer surface of the lens barrel 202. Since the female screw 2〇4a of the lens bore 204 must also be formed on the front end 6 side of the lens holder, the size of the lens holder 204 becomes large. Therefore, there is also a problem that the lens assembly 7 200 lacks miniaturization. M358313 Further, the lens assembly proposed in Patent Document i is a configuration of a pressing member of the lens barrel main body. Therefore, the length of the lens barrel main body in the optical axis direction is equivalent to the length of the space amount for bonding the pressing member. Therefore, there is still a problem of lack of miniaturization. [New content] The present invention has been made in view of the above problems, and an object of the invention is to provide a lens assembly and an imaging device which are miniaturized. And for the purpose of the above-mentioned purpose of the VI, the lens assembly is provided, and the second thread is formed on the inner wall surface and the second thread is formed on the inner wall surface. In addition, η "土" is used to form a pressure ring for the peripheral portion of the lens housed in the lens barrel. The lens assembly is formed by screwing a second thread formed on the outer wall surface of the lens barrel: and a second thread forming the inner wall surface of the (four) ring to fix the dust ring; and (2) a third thread formed on the outer wall surface of the pressure ring. According to this configuration, the partial (four) ring of the peripheral portion of the mirror 2 on the outer wall surface of the lens barrel is formed, and thus the square β- — (4) for fixing the pressure ring is formed on the wall surface of the conventional one. ◎Compared with the technique of the thread, the optical axis factory can be shortened to the range corresponding to the amount of space for forming the female screw. In addition, according to this configuration, the ring corresponds to the partial mounting of the peripheral portion of the lens. The lens holder, thus: the front end of the outer wall of the lens barrel Compared with the technique of forming the % thread for the lens holder, the size of the light for forming the above-mentioned pattern can be shortened to be equivalent to j (the fitting length of the lens holder). Fan 6 25 M358313 Furthermore, it is possible to reduce the size of the space amount of the pressing member in the optical axis direction as compared with the technique proposed in the patent application. The size of the lens barrel main body in combination with the pressing member is shortened to be equivalent to Therefore, it is preferable to form the lens assembly 5 at the weeping portion. Preferably, the lens barrel has a cylindrical first sliding contact surface, and the first thread is formed on the outer wall surface of the lens barrel, and When the outer wall surface of the ^ is screwed into the dust ring, the first sliding surface is in sliding contact with the inner wall surface of the pressure ring. The pressure ring has an annular second sliding contact surface formed on the inner wall surface of the pressure ring 1〇. The second thread, and the second sliding contact surface is in sliding contact with the first sliding contact surface of the lens barrel when the inner wall surface of the pressure ring is screwed into the lens barrel. 15 20 fixing the pressure ring on the outer wall surface of the lens barrel When it will only form a second thread of the outer wall surface of the lens barrel to a second thread formed on the inner wall surface of the pressure ring, the lens holder attached to the outer wall surface of the pressure ring due to looseness occurring between the first and second threads The mounting accuracy is lowered. Therefore, an error occurs between the photographic element mounted on the lens holder and the lens. Therefore, a sliding contact surface is provided on the outer wall surface of the lens barrel, and a sliding contact surface is placed on the inner wall surface of the pressure ring, and The sliding contact surfaces are slidably contacted with each other, so that the looseness between the lens barrel and the pressure ring can be suppressed. Thereby, the mounting accuracy of the lens holder which is mounted on the outer wall surface of the repeating ring can be improved. The dust ring has a screw hole for thread locking. The thread locking hole passes between the inner circumferential surface and the outer circumferential surface, and an opening σ opened to the outer circumferential surface is larger than an opening formed in the inner circumferential surface. 7 M358313 In this way, even when the amount of the binder is injected, the large opening of the thread locking hole has the function of accumulating the binder, preventing the binder from overflowing from the thread locking hole and sticking to the pressure ring. The outer wall surface and the installation of the lens holder pose obstacles. Therefore, when the adhesive is injected, the helmet must finely adjust the amount of the injection of the adhesive, and the workability of the lens assembly can be improved. Further, it is preferable that the pressure ring has a screw-locking groove for opening, and the screw-locking groove is opened to both the inner circumferential surface and the outer circumferential surface, and extends along the optical axis direction of the lens, and one end reaches the pressure The end of the ring is 10 faces. - If such a thread locking groove is provided, the adhesive can be injected from the end face side of the pressure ring in a state where the lens holder is attached to the outer wall surface of the pressure ring. f and ' can simultaneously bond the lens barrel, the pressure ring, and the lens holder, and can improve the operability of the lens assembly. Further preferably, the second thread formed on the inner wall surface of the pressure ring and the third thread formed on the outer wall surface of the pressure ring are formed to be opposite to each other. 4k-like' If the second thread and the third thread are formed as opposite rotors, the lens barrel is rotated in a predetermined rotational direction, and the lens barrel can be detached from the lens assembly body and transmitted through the lens barrel The two rotation directions of the opposite rotation directions are rotated, and only the lens holder can be detached from the lens assembly. Therefore, the lens assembly can be freely decomposed. Further preferably, the pressure ring has a round head groove (the crab eye is Cao, the 乂7-v, and the __ _ χ. The round head groove is used for the 8 M358313 when the lens holder is mounted. Screw into the lens holder. When assembling the lens body, insert the clamp into the 0-slot ' of the mirror ring to be twisted in the direction of the ruler to make the press turn. Therefore, the fixed pressure ring is fixed on the pressure ring with respect to the 镫ηχ& lens holder. For the same movement of the mirror, the second lens is preferably two, and the lens assembly has a lens holder. The fourth thread of the outer wall surface of the pressure ring is screwed into the fourth thread. If so, the lens holder can be simply attached to the pressure ring. 10 15 2〇π Λ*!, the photographic device of the present invention which achieves the above object The lens assembly and the imaging device are provided with the above-described lens assembly. The component 疋 has the structure of the lens assembly described above, so that it can be miniaturized. According to the present invention, a lens that is miniaturized can be provided. Assembly and imaging device. [Embodiment] BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a part of a structure before a lens holder of a lens assembly according to a first embodiment of the present invention is cut. Fig. 1 shows a first embodiment of the present invention. The lens 11 of the lens assembly 10 of the embodiment, the lens barrel that houses the imaging lens, and the pressure ring i 3 that presses the peripheral edge portion of the imaging lens 11. A male screw 12a is formed on the outer wall surface of the lens barrel 12 ( Equivalent to the snail, text) of the present example, and in the dust ring 13, the inner wall surface shape 25 M358313 of the pressure ring 成 is formed with a male thread 〖2a snail which is formed on the outer wall surface of the lens barrel 丨2 The female thread 13a (corresponding to an example of the second thread of the present invention). Specifically, a portion corresponding to the peripheral portion of the photographic lens 11 on the outer wall surface of the lens barrel 12 is formed with a male thread 1 and transmitted through the male thread 12a. The female screw 13a formed on the surface of the inner wall 5 of the pressure ring 13 is screwed into the lens barrel 12. The pressure ring 13 is formed with a lens holder 14 which will be described later on the outer wall surface of the pressure ring 13. The male thread 13b for installation (equivalent to an example of the third thread of this creation). FIG. 2 is a perspective view showing a part of the lens assembly shown in FIG. 2 after the lens holder is mounted. FIG. 2 shows that the above-described photographic lens 11, lens barrel 12, pressure ring 13', and the pressure ring are mounted. A lens assembly 1 of the lens holder 14 on the outer wall surface of the outer wall surface of the lens 13. The lens holder actually has a front frame for mounting the lens holder 14 to the pressure ring 13 and a rear frame for mounting the photographic element. However, for the sake of convenience, only the front frame of the lens holder 14 is illustrated. On the inner wall surface of the front is frame of the lens holder 14, a female screw 14a screwed into the male thread 13b formed on the outer wall surface of the pressure ring 13 is formed (equivalent to In the fourth thread of the present invention, the female thread i4a is screwed through the male thread 13b formed on the outer wall surface of the pressure ring 13, and the lens holder 14 is attached to the pressure ring 13. In the lens assembly 1A of the first embodiment, the house ring 13 is fixed to a portion of the outer wall 20 of the lens barrel 12 corresponding to the peripheral edge portion of the photographic lens 11, and thus is formed with a conventional one for the pressure ring. The technique of fixing the female screw to the inner wall surface of the lens barrel can shorten the dimension in the direction of the optical axis to a range corresponding to the amount of space (the amount of fitting length of the pressure ring) for forming the female screw. Further, a portion of the outer wall surface of the pressure ring 13 corresponding to the peripheral portion of the photographic lens 1 is mounted on the front end side of the outer wall surface of the lens barrel for mounting the lens (four) yang (four). In comparison with the technique, the size in the direction of the optical axis can be reduced to correspond to the range in which the material (4) space 4 (the lens holder 2: the length of the undercut) is formed. Further, the size in the direction of the optical axis can be shortened to a range corresponding to the amount of space for bonding the pressing member, as compared with the technique of combining the main body with the lens barrel in the patent application. Therefore, the lens assembly 10 can be downsized.
10 圖3是表示切開本創作的第二實施方式的透鏡組裝體 的安裝透鏡架之前的結構的局部的立體圖。 圖3所示的透鏡組裝體2()，與圖i所示的透鏡組裝體⑺ ，比，僅在圖1所示的鏡筒12和壓環13置換成以下說明的鏡 筒22和壓環22的這一點上不同。 在鏡筒22的外壁面形成有陽螺紋❿（相當於另一例本 創作的第-螺紋）。而且，此鏡筒22中，在該外壁面的除 15 了形成有陽螺紋22a部分的後端上，具有在螺合屋環23時而 與壓環23的内壁面的後端部滑動接觸的圓筒狀的滑動接觸 面22b (相當於一例本創作的第一滑動接觸面）。 而且，壓環23中，在内壁面形成有陰螺紋23& (相當於 另一例本創作的第二螺紋），並且在該内壁面的除了形成 20有陰螺紋23a部分的後端部上，具有在螺合鏡筒22時而與該 鏡筒22的滑動接觸面22b滑動接觸的圓環狀的滑動接觸面 23b (相當於一例本創作的第二滑動接觸面）。 在第二實施方式的透鏡組裝體20中，透過形成於鏡筒 22的外壁面的陽螺紋22a螺入到形成於壓環的内壁面的 11 .M358313 陰螺紋23a，壓環23被固定在鏡筒22的外壁面。此處，僅將 陽螺紋22a螺入到陰螺紋23a ’由於在該些陽螺紋22a和陰螺 紋23a之間發生鬆動，導致安裝在壓環23的外壁面的透鏡架 (未圖示）的安裝精度下降。於是，安裝於該透鏡架的攝 5影元件和攝影透鏡21之間產生誤差。因此，在本創作的第 —貫細方式的透鏡組裝體2〇中，在鏡筒22的外壁面設置滑 動接觸面22b，並且在壓環23的内壁面設置滑動接觸面 23b’透過使该些滑動接觸面22b和滑動接觸面相互滑動 接觸，而抑制鏡筒22和壓環23之間的鬆動。由此，可提高 10安裝在壓環23的外壁面的透鏡架的安裝精度。 圖4是表示切開本創作的第三實施方式的透鏡組裝體 的女裝透鏡架之前的結構的局部的立體圖。 圖4所示的透鏡組裝體3〇，與圖3所示的透鏡組裝體π 相比，僅在將壓環23置換成壓環33的這一點上不同。 15 ® 4所*的塵環33除了圖3所示的塵環23所具有的構成 要素以外’還具有螺紋鎖定用黏結孔…，該螺紋鎖定用黏 結孔33a貫通内周面和外周面之間，且向外周面開設的開口 33a2大於向内周面開設的開口33al (二段開口（或者 形狀的開口））。 2〇纟第三實施方式的透鏡組裝體30中，透過形成於鏡筒 2 2的外壁面的陽螺紋2 2 a螺入到形成於壓環3 3的内壁面的 陰螺紋23a，壓環33被固定在鏡筒邱外壁面，並且 筒22的外壁面的滑動接觸面以和設在壓環抑内壁面: 滑動接觸面23b相互滑動接觸。以此狀態，黏結劑再注入到 12 M358313 £ : 33的螺紋鎖定用黏結孔33&，由此壓環被螺接固定於 社琦 此處即使黏結劑的注入量多時，螺紋鎖定用黏 • 結孔33&所具有的大開口 33心起到積存黏結劑的作用，從而 . 肖止黏結劑從螺紋鎖定用黏結孔33a溢出並黏結於壓環33 5 ，外壁面，而給透鏡架的安裝帶來障礙。而且，小開口 33al t在進行黏結鏡筒22和壓環33時，可注人能夠維持充分黏 、、-。強度刀量的黏結劑的開口。因而，在注入黏結劑時，不 必極微、、，田地調整黏結劑的注入量，而可提高透鏡組裝體3 〇 馨 的操作性。 10 圖5是表示切開本創作的第四實施方式的透鏡組裝體 的女裝透鏡架之前的結構的局部的立體圖。 構成圖5所示的透鏡組裝體4〇的壓環43具有，朝内周面 和外周面雙方開口，並沿著攝影透鏡丨丨的光軸方向延伸， 且一端到達壓環43的端面43a的螺紋鎖定用黏結槽43b。 15 圖6是表示切開圖5所示的透鏡組裝體的安裝透鏡架之 後的結構的局部的立體圖。 φ 圖6表示有具備安裝於圖5所示的壓環43的外周面的透 鏡架14的透鏡組裝體4〇。 在第四實施方式的透鏡組裝體40中，具備有具有一端 2〇到達壓環43的端面43a的螺紋鎖定用黏結槽43b的壓環43。 因此’如圖6所示，以將透鏡架14安裝在壓環43的外壁面的 狀態’可從壓環43的端面43a側注入黏結劑。由此，可同時 進行鏡筒22、壓環43、透鏡架14的黏結。從而，可提高透 鏡組裝體40的操作性。需要說明的是，如圖5所示，也可將 13 M358313 面的陰螺紋14a。這樣，在第二步驟中將爽具插入到壓環^ 的圓頭槽53c，使壓環53與鏡筒22 一起朝逆時針方向⑽ . # ’而將透鏡架14111定在塵環53，使得在第__步驟中被固 . 冑於順時針方向P的壓環23相對於鏡筒22不會鬆弛。由此 5進行組裝透鏡組裝體5〇。 *從被組裝的透鏡組裝體5〇僅要拆卸鏡筒22時，透過使 $筒22朝逆時針方向q旋轉，可從透鏡組裝體观拆卸鏡 筒22。而且，從被組裝的透鏡組裝體5〇僅要拆卸透鏡架“ •日夺，透過使鏡筒22朝順時針方向P旋轉，可從透鏡組裝體 10 50僅拆卸透鏡架14。 如上所述，在第5實施方式的透鏡組裝體5〇中，形成於 壓％53的内壁面的陰螺紋53a和形成於該壓環的外壁面 的陽螺紋53b形成爲相反方向的螺紋。因此，透過將鏡筒π 朝逆時針方向Q旋轉，可從透鏡組裝體5〇僅拆卸鏡筒 15而且，透過使鏡筒22朝時針方向P旋轉，可從透鏡组裝體 5〇僅拆卸透鏡架14。因而，能夠自如分解透鏡組裝體5〇。 • 而且，如上所述，壓環53具有用於將壓環53螺入到透Fig. 3 is a perspective view showing a part of the structure of the lens assembly of the second embodiment of the present invention before the lens holder is attached. The lens assembly 2 () shown in FIG. 3 is replaced with the lens barrel 22 and the pressure ring 13 shown in FIG. 1 only by the lens barrel 22 and the pressure ring shown in FIG. 22 is different on this point. A male thread ❿ is formed on the outer wall surface of the lens barrel 22 (corresponding to another example of the first thread created herein). Further, in the lens barrel 22, on the rear end of the outer wall surface except for the portion where the male screw 22a is formed, there is a sliding contact with the rear end portion of the inner wall surface of the pressure ring 23 when the house ring 23 is screwed. A cylindrical sliding contact surface 22b (corresponding to an example of the first sliding contact surface of the present invention). Further, in the pressure ring 23, a female thread 23& (corresponding to another second thread of the present example) is formed on the inner wall surface, and has a rear end portion of the inner wall surface except the portion where the female thread 23a is formed 20 An annular sliding contact surface 23b (corresponding to an example of the second sliding contact surface of the present invention) which is in sliding contact with the sliding contact surface 22b of the lens barrel 22 when the lens barrel 22 is screwed. In the lens assembly 20 of the second embodiment, the male screw 22a formed on the outer wall surface of the lens barrel 22 is screwed into the 11.M358313 female screw 23a formed on the inner wall surface of the pressure ring, and the pressure ring 23 is fixed to the mirror. The outer wall surface of the barrel 22. Here, only the male screw 22a is screwed into the female screw 23a'. Since the looseness occurs between the male screw 22a and the female screw 23a, the mounting of the lens holder (not shown) attached to the outer wall surface of the pressure ring 23 is caused. The accuracy is reduced. Thus, an error occurs between the camera element mounted on the lens holder and the photographic lens 21. Therefore, in the lens assembly 2 of the first embodiment of the present invention, the sliding contact surface 22b is provided on the outer wall surface of the lens barrel 22, and the sliding contact surface 23b' is provided on the inner wall surface of the pressure ring 23 to allow the The sliding contact surface 22b and the sliding contact surface are in sliding contact with each other, and the looseness between the lens barrel 22 and the pressure ring 23 is suppressed. Thereby, the mounting accuracy of the lens holder attached to the outer wall surface of the pressure ring 23 can be improved. Fig. 4 is a perspective view showing a part of the structure before the female lens holder of the lens assembly of the third embodiment of the present invention is cut. The lens assembly 3 shown in FIG. 4 differs from the lens assembly π shown in FIG. 3 only in that the pressure ring 23 is replaced by the pressure ring 33. In addition to the components of the dust ring 23 shown in FIG. 3, the dust ring 33 of the 15*4* has a screw-locking hole for thread locking, which penetrates between the inner circumferential surface and the outer circumferential surface. The opening 33a2 opened to the outer peripheral surface is larger than the opening 33al (the two-stage opening (or the opening of the shape)) opened to the inner peripheral surface. In the lens assembly 30 of the third embodiment, the male screw 2 2 a formed through the outer wall surface of the lens barrel 2 2 is screwed into the female screw 23a formed on the inner wall surface of the pressure ring 33, and the pressure ring 33 is pressed. It is fixed to the outer wall surface of the lens barrel, and the sliding contact surface of the outer wall surface of the cylinder 22 is in sliding contact with the inner wall surface of the pressure ring: the sliding contact surface 23b. In this state, the bonding agent is reinjected into the thread locking hole 33& of the thread locking of 12 M358313 £: 33, whereby the pressure ring is screwed and fixed to the body. Here, even if the amount of the bonding agent is large, the thread locking is adhered. The large opening 33 of the junction hole 33 &le serves to accumulate the adhesive, so that the adhesion agent overflows from the screw locking hole 33a and is bonded to the pressure ring 33 5 , the outer wall surface, and the lens holder is mounted. Brings obstacles. Further, when the small opening 33al t is bonded to the lens barrel 22 and the pressure ring 33, it is possible to maintain sufficient adhesion. The strength of the amount of the adhesive opening. Therefore, when the binder is injected, the amount of the binder to be injected is not necessarily adjusted to the field, and the operability of the lens assembly 3 can be improved. Fig. 5 is a perspective view showing a part of the structure before the female lens holder of the lens assembly of the fourth embodiment of the present invention is cut. The pressure ring 43 constituting the lens assembly 4A shown in Fig. 5 has both an inner circumferential surface and an outer circumferential surface, and extends in the optical axis direction of the photographic lens cymbal, and one end reaches the end surface 43a of the pressure ring 43. The thread locking groove 43b. Fig. 6 is a perspective view showing a part of a structure in which the lens assembly shown in Fig. 5 is attached to the lens holder. φ Fig. 6 shows a lens assembly 4A having a lens holder 14 attached to the outer peripheral surface of the pressure ring 43 shown in Fig. 5. In the lens assembly 40 of the fourth embodiment, the pressure ring 43 having the screw locking groove 43b having the one end 2〇 reaching the end surface 43a of the pressure ring 43 is provided. Therefore, as shown in Fig. 6, the binder can be injected from the side of the end face 43a of the pressure ring 43 in a state where the lens holder 14 is attached to the outer wall surface of the pressure ring 43. Thereby, the bonding of the lens barrel 22, the pressure ring 43, and the lens holder 14 can be performed at the same time. Thereby, the operability of the lens assembly 40 can be improved. It should be noted that, as shown in Fig. 5, the female thread 14a of the surface of 13 M358313 can also be used. Thus, in the second step, the cooling device is inserted into the round head groove 53c of the pressure ring ^, so that the pressure ring 53 and the lens barrel 22 together in the counterclockwise direction (10). # ', the lens holder 14111 is set in the dust ring 53, so that The pressure ring 23 that is solidified in the __ step is not slack with respect to the lens barrel 22 in the clockwise direction P. Thus, the lens assembly 5 is assembled. * When the lens barrel 22 is removed only from the assembled lens assembly 5, the lens barrel 22 can be removed from the lens assembly by rotating the barrel 22 in the counterclockwise direction q. Further, it is only necessary to disassemble the lens holder from the assembled lens assembly 5, and by rotating the lens barrel 22 in the clockwise direction P, only the lens holder 14 can be detached from the lens assembly 105. As described above, In the lens assembly 5 of the fifth embodiment, the female screw 53a formed on the inner wall surface of the pressure %53 and the male screw 53b formed on the outer wall surface of the pressure ring are formed in the opposite directions. When the cylinder π is rotated in the counterclockwise direction Q, only the lens barrel 15 can be detached from the lens assembly 5, and the lens barrel 22 can be rotated in the clockwise direction P, whereby only the lens holder 14 can be detached from the lens assembly 5. The lens assembly 5 can be freely disassembled. Moreover, as described above, the pressure ring 53 has a function for screwing the pressure ring 53 into
鏡架14的圓頭槽53c’因此，在組裝透鏡組裝體加寺，首先 使壓裱23朝順時針方向p旋轉而固定在鏡筒22，接著，將 20夾具插入到壓環53的圓頭槽53c，使壓環53朝逆時針方向Q 旋轉。這樣，被固定於順時針方向p的壓環23相對於鏡筒 22不會鬆弛，從而可將透鏡架14固定在壓環幻。 S 圖9是表不具備圖3所示的透鏡組裝體的相機單元 面的立體圖。 0 15 M358313 圖9所不的相機單元60是本創作的攝影裝置的一實施 方式’此相機單疋60具備：圖3所示的透鏡組裝體2〇、透鏡 . 架61、攝影元件62、基板63。 * 爲組裝此相機單元60，在透鏡組裝體20安裝透鏡架 5 61，將裝載CCD等攝影元件62的基板63黏結固定在透鏡架 61根據此相機單元6〇’由於該相機單元⑼具備有透鏡組 裝體20，故可實現小型化。 •【圖式簡單說明】 10 圖1是表不切開本創作的第一實施方式的透鏡組裝體 的安裝透鏡架之前的結構的局部的立體圖。 ®2是表示切開圖1所示的透鏡組裝體的安裝透鏡架 之後的結構的局部的立體圖。 圖3是表示切開本創作的第二實施方式的透鏡組裝體 15的安裝透鏡架之前的結構的局部的立體圖。 圖4是表示切開本創作的第三實施方式的透鏡組裝體 籲 的女裝透鏡架之前的結構的局部的立體圖。 圖5是表示切開本創作的第四實施方式的透鏡組裝體 的安裝透鏡架之前的結構的局部的立體圖。 20 圖6是表示切開圖5所示的透鏡組裝體的安裝透鏡架之 後的結構的局部的立體圖。 圖7是表示切開本創作的第$實施方式的透鏡組裝體的 女裝透鏡架之前的結構的局部的立體圖。 圖8是表示切開圖7所示的透鏡組裝體的安裝透鏡架之 16 M358313 後的結構的局部的立體圖。 圖9是表不具備圖3所示的透鏡組裝體的相機單元的 面的立體圖。 ° 圖10是表示切開習知的透鏡組裝體的安裝透鏡架之前 5 的結構的局部的立體圖。 圖11是表示切開圖1〇所示的透鏡組裝體的安裝透鏡架 之後的結構的局部的立體圖。 圖12是表示切開與習知的圖丨〇、圖丨丨所示的透鏡組農 體不同的透鏡組裝體的安裝透鏡架之前的結構的局部的立 10 體圖。 圖13是表示切開圖12所示的透鏡組裝體的安裝透鏡架 之後的結構的局部的立體圖。 【主要元件符號說明】 透鏡組裝體 10,20,30.40,50,100,200 攝影透鏡 11,101,201 鏡筒 12,22，102,202The round head groove 53c' of the frame 14 is thus fixed to the lens barrel 22 by rotating the pressure pin 23 in the clockwise direction p by assembling the lens assembly plus the temple, and then inserting the 20 jig into the round head of the pressure ring 53 The groove 53c rotates the pressure ring 53 in the counterclockwise direction Q. Thus, the pressure ring 23 fixed in the clockwise direction p does not slack with respect to the lens barrel 22, so that the lens holder 14 can be fixed to the pressure ring. S is a perspective view showing a camera unit surface including the lens assembly shown in Fig. 3. 0 15 M358313 The camera unit 60 shown in FIG. 9 is an embodiment of the photographing apparatus of the present invention. The camera unit 60 includes the lens assembly 2, the lens, the frame 61, the photographing element 62, and the substrate shown in FIG. 63. * In order to assemble the camera unit 60, a lens holder 5 61 is attached to the lens assembly 20, and a substrate 63 on which a photographic element 62 such as a CCD is mounted is bonded and fixed to the lens holder 61. According to the camera unit 6' because the camera unit (9) is provided with a lens Since the assembly 20 is assembled, it is possible to achieve miniaturization. [Brief Description of the Drawings] Fig. 1 is a perspective view showing a part of the structure of the lens assembly of the first embodiment of the present invention before the lens holder is attached. ®2 is a perspective view showing a part of the structure after the lens holder of the lens assembly shown in Fig. 1 is cut. Fig. 3 is a perspective view showing a part of the structure of the lens assembly 15 of the second embodiment of the present invention before the lens holder is attached. Fig. 4 is a perspective view showing a part of the structure before the lens holder of the lens assembly of the third embodiment of the present invention is cut. Fig. 5 is a perspective view showing a part of the structure of the lens assembly of the fourth embodiment of the present invention before the lens holder is attached. Fig. 6 is a perspective view showing a part of a structure in which the lens assembly shown in Fig. 5 is attached to the lens holder. Fig. 7 is a perspective view showing a part of the structure before the female lens holder of the lens assembly of the first embodiment of the present invention is cut. Fig. 8 is a perspective view showing a part of the structure of the lens assembly shown in Fig. 7 in which the lens holder 16 M358313 is attached. Fig. 9 is a perspective view showing a surface of a camera unit having the lens assembly shown in Fig. 3; Fig. 10 is a perspective view showing a part of the structure of the conventional lens assembly before the lens holder is attached. Fig. 11 is a perspective view showing a part of the structure after the lens holder of the lens assembly shown in Fig. 1A is attached. Fig. 12 is a partial perspective view showing a structure before the lens holder is attached to a lens assembly different from the conventional lens group and the lens group. Fig. 13 is a perspective view showing a part of the configuration after the lens holder of the lens assembly shown in Fig. 12 is attached. [Description of main component symbols] Lens assembly 10, 20, 30.40, 50, 100, 200 Photographic lens 11,101,201 Lens barrel 12,22,102,202
陽螺紋 12a，13 b,22a,53 b, 102b, 103 a,202a，202b 壓環 13,23,33,43,53,103 陰螺紋 13a，14a,23a,53a，102a，104a，203a，204a 透鏡架14,61,104,204 滑動接觸面22b，23b 黏結孔33a 小開口 33al 大開口 33a2 端面43a 黏結槽43b 圓頭槽53c 相機單元60 攝影元件62 基板63Male thread 12a, 13 b, 22a, 53 b, 102b, 103 a, 202a, 202b pressure ring 13, 23, 33, 43, 53, 103 female thread 13a, 14a, 23a, 53a, 102a, 104a, 203a, 204a lens holder 14,61,104,204 Sliding contact surface 22b, 23b Bonding hole 33a Small opening 33al Large opening 33a2 End surface 43a Bonding groove 43b Round groove 53c Camera unit 60 Photographic element 62 Substrate 63
逆時針方向QCounterclockwise Q
順時針方向P 被攝體光A 17 15Clockwise direction P subject light A 17 15