JP2005121912A

JP2005121912A - Lens barrel and photographing device

Info

Publication number: JP2005121912A
Application number: JP2003356790A
Authority: JP
Inventors: Hideki Yamaoka; 英樹山岡
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 2003-10-16
Filing date: 2003-10-16
Publication date: 2005-05-12

Abstract

PROBLEM TO BE SOLVED: To provide a satisfactory lens barrel and imaging device which can simplify the assembling work of the imaging element in the lens barrel and which can also easily assemble and disassemble the lens barrel, and to provide the imaging element. SOLUTION: The imaging element 128 includes a package 128B in which imaging section is built. The holder 46 has a frame 4602 surrounding the package 128B, a mounting plate 4604 which projects from the frame 4602 and fixed to the mounting seat 1204C with the imaging element 128A facing the optical path of the optical system, and cutouts 4606 formed on the frame 4602 to fill the adhesive. The cutouts 4606 for filling the adhesive are formed open in lower end of the lower wall 4608, and three of them are formed at intervals, in the extending direction the sidewall 128C2 of the package 128B. COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明はレンズ鏡筒および撮像装置に関する。 The present invention relates to a lens barrel and an imaging device.

従来から、撮像素子が鏡筒に接着されたレンズ鏡筒が提供されている。
このようなレンズ鏡筒では、鏡筒に対する撮像素子の接着は、鏡筒の後部に設けられた開口に撮像素子を嵌め込み、前記開口の内周と撮像素子の外周の間に形成される隙間にＵＶ硬化型接着剤（紫外線硬化型接着剤）を充填し、該充填したＵＶ硬化型接着剤に紫外線を照射してＵＶ硬化型接着剤を硬化させることにより前記開口に対して撮像素子を直接接着することで行なわれている（例えば特許文献１参照）。
特開平８−４６８３９号公報 Conventionally, a lens barrel in which an imaging element is bonded to a lens barrel has been provided.
In such a lens barrel, the image sensor is bonded to the lens barrel by fitting the image sensor into an opening provided at the rear of the lens barrel, and in a gap formed between the inner periphery of the opening and the outer periphery of the image sensor. A UV curable adhesive (ultraviolet curable adhesive) is filled, and the UV curable adhesive is cured by irradiating the filled UV curable adhesive with ultraviolet rays to directly bond the imaging device to the opening. (For example, refer to Patent Document 1).
JP-A-8-46839

しかしながら、従来のレンズ鏡筒では、鏡筒の開口の内周と撮像素子の外周との間に形成される狭い隙間にＵＶ硬化型接着剤を充填しずらく、また、充填されたＵＶ硬化型接着剤に対して確実に紫外線を照射することも難しく組立作業性に欠ける欠点がある。
そして、近年の撮像素子およびレンズ鏡筒の小型化に伴い、開口および撮像素子自体もさらに小型化されることから、このような欠点は一層助長される。
また、いったん鏡筒と撮像素子が接着により固定されてしまうと、鏡筒と撮像素子とが直接接着されていることから、鏡筒と撮像素子とを分離できず、鏡筒および撮像素子の一方に不具合があった場合に他方を再利用することができない欠点がある。
本発明はこのような事情に鑑みなされたものであり、その目的は、鏡筒に対する撮像素子の組立作業の容易化を図る上で有利であり、鏡筒と撮像素子の組立および分解を容易に行なう上で有利なレンズ鏡筒および撮像装置を提供することにある。 However, in the conventional lens barrel, it is difficult to fill the narrow space formed between the inner periphery of the opening of the lens barrel and the outer periphery of the imaging element with the UV curable adhesive, and the filled UV curable type It is difficult to reliably irradiate the adhesive with ultraviolet rays, and there is a drawback that assembly workability is lacking.
With the recent miniaturization of the image sensor and the lens barrel, the aperture and the image sensor itself are further miniaturized, and this disadvantage is further promoted.
In addition, once the lens barrel and the image sensor are fixed by bonding, the lens barrel and the image sensor cannot be separated from each other because the lens barrel and the image sensor are directly bonded. If there is a problem, the other cannot be reused.
The present invention has been made in view of such circumstances, and an object thereof is advantageous in facilitating the assembling work of the imaging device with respect to the lens barrel, and facilitates the assembly and disassembly of the lens barrel and the imaging device. An object of the present invention is to provide a lens barrel and an image pickup apparatus that are advantageous in carrying out the process.

上述の目的を達成するため、本発明のレンズ鏡筒は、鏡筒の内部に設けられ被写体像を導く光学系と、前記鏡筒の内部で前記光学系の光路上に設けられた撮像素子とを有するレンズ鏡筒であって、前記鏡筒に、前記撮像素子を前記光路上に臨ませる開口と、この開口の周囲に設けられた取付座とからなる撮像素子用取付部が設けられ、前記撮像素子を保持するホルダが設けられ、前記撮像素子は、撮像部と、この撮像部が収容されたパッケージとを含んで構成され、前記ホルダは、前記パッケージの周囲を囲む枠部と、前記枠部から突出し前記撮像部を前記光路に臨ませた状態で前記取付座に取着される取付板部と、前記枠部に設けられた接着剤充填用欠部とを有し、前記撮像素子とホルダは前記接着剤充填用欠部に充填された接着剤により前記パッケージの周囲を構成する壁部と前記枠部とが接着されることにより固定されて撮像素子ユニットが構成され、前記撮像素子ユニットは、前記撮像部を前記開口に臨ませ前記取付板部が前記取付座に着脱可能に取着されることで鏡筒に配設されていることを特徴とする。
また、本発明の撮像装置は、鏡筒の内部に設けられ被写体像を導く光学系と、前記鏡筒の内部で前記光学系の光路上に設けられた撮像素子とを有する撮像装置であって、前記鏡筒に、前記撮像素子を前記光路上に臨ませる開口と、この開口の周囲に設けられた取付座とからなる撮像素子用取付部が設けられ、前記撮像素子を保持するホルダが設けられ、前記撮像素子は、撮像部と、この撮像部が収容されたパッケージとを含んで構成され、前記ホルダは、前記パッケージの周囲を囲む枠部と、前記枠部から突出し前記撮像部を前記光路に臨ませた状態で前記取付座に取着される取付板部と、前記枠部に設けられた接着剤充填用欠部とを有し、前記撮像素子とホルダは前記接着剤充填用欠部に充填された接着剤により前記パッケージの周囲を構成する壁部と前記枠部とが接着されることにより固定されて撮像素子ユニットが構成され、前記撮像素子ユニットは、前記撮像部を前記開口に臨ませ前記取付板部が前記取付座に着脱可能に取着されることで鏡筒に配設されていることを特徴とする。 In order to achieve the above-described object, a lens barrel of the present invention includes an optical system that is provided inside a barrel and guides a subject image, and an imaging device that is provided on the optical path of the optical system inside the barrel. A lens barrel having an imaging element mounting portion including an opening for allowing the imaging element to face the optical path and a mounting seat provided around the opening. A holder for holding an imaging element is provided, and the imaging element includes an imaging unit and a package in which the imaging unit is accommodated, and the holder includes a frame unit surrounding the package, and the frame. A mounting plate portion that protrudes from the mounting portion and is attached to the mounting seat in a state where the imaging portion faces the optical path, and an adhesive filling missing portion provided in the frame portion, and the imaging device The holder is made of an adhesive filled in the adhesive filling notch. An image pickup device unit is configured by fixing the wall portion and the frame portion constituting the periphery of the package, and the image pickup device unit faces the opening to the opening, and the mounting plate portion It is arranged in the lens barrel by being detachably attached to the mounting seat.
The imaging apparatus of the present invention is an imaging apparatus having an optical system that is provided inside a lens barrel and guides a subject image, and an imaging element that is provided on the optical path of the optical system inside the lens barrel. The lens barrel is provided with an image sensor mounting portion comprising an opening for allowing the image sensor to face the optical path and a mounting seat provided around the aperture, and a holder for holding the image sensor is provided. The imaging device includes an imaging unit and a package in which the imaging unit is accommodated, and the holder protrudes from the frame unit surrounding the package, and the imaging unit is connected to the frame unit. A mounting plate portion attached to the mounting seat in a state of facing the optical path; and an adhesive filling notch portion provided on the frame portion, wherein the imaging element and the holder are provided with the adhesive filling missing portion. The package is surrounded by an adhesive filled in the part. An imaging device unit is configured by fixing the wall portion and the frame portion to be bonded, and the imaging device unit can be attached to and detached from the mounting seat with the imaging portion facing the opening. It is arranged in the lens barrel by being attached to the lens.

そのため、本発明によれば、接着剤充填用欠部に接着剤を充填する作業、および、各接着剤充填用欠部に充填された接着剤に対して紫外線を照射する作業を容易かつ確実に行なうことができ、組立作業性を向上させる上で有利となる。
また、鏡筒の撮像素子用取付部に対して撮像素子ユニットが着脱可能に取着されるので、鏡筒と撮像素子ユニットを容易に組立および分解することができ、鏡筒および撮像素子の一方に不具合があった場合に他方を再利用することができる。 Therefore, according to the present invention, the operation of filling the adhesive filling notch with the adhesive and the operation of irradiating the adhesive filled in each adhesive filling notch with ultraviolet rays can be performed easily and reliably. This is advantageous in improving the assembly workability.
Further, since the image sensor unit is detachably attached to the image sensor mounting portion of the lens barrel, the lens barrel and the image sensor unit can be easily assembled and disassembled. If there is a problem with the other, the other can be reused.

プリズムと鏡筒との接着強度を確保しつつ、プリズムの全反射面に対する接着剤の回り込みを防止するという目的を、鏡筒に設けられたプリズム取付部に、プリズムの端面に当接する第１の凸条および第２の凸条と、第１の凸条と第２の凸条との間にわたって延在形成された凹部とを設けることによって実現した。 For the purpose of preventing adhesive from wrapping around the total reflection surface of the prism while ensuring the adhesive strength between the prism and the lens barrel, the prism mounting portion provided in the lens barrel is in contact with the end surface of the prism. This was realized by providing the ridges and the second ridges, and the recesses extending between the first ridges and the second ridges.

次に本発明の実施例１について図面を参照して説明する。
本実施例では、本発明のレンズ鏡筒が撮像装置に組み込まれている場合について説明する。
図１は実施例１の撮像装置を前方から見た斜視図、図２は実施例１の撮像装置を後方から見た斜視図、図３は実施例１の撮像装置を下方から見た斜視図、図４はメモリカードおよびバッテリーの収容状態を説明する説明図、図５は撮像装置の制御系を示すブロック図である。
図１、図２に示すように、撮像装置１００はデジタルスチルカメラであって、外装を構成する矩形板状のケース１０２を有し、ケース１０２は、前側ケース１０２Ａと後側ケース１０２Ｂとが合わせられて構成され、前側ケース１０２Ａによりケース１０２の前面が構成され、後側ケース１０２Ｂによりケース１０２の後面が構成されている。なお、本明細書においてケース１０２の左右はケース１０２を前方から見た状態でいうものとする。
ケース１０２の右側部には、図中二点鎖線で示すように、本発明に係るレンズ鏡筒１０が組み込まれており、レンズ鏡筒１０には、対物レンズ１４と、撮像素子１２８と、対物レンズ１４で捉えた被写体像を撮像素子１２８に導く光学系１０４などが設けられており、これら対物レンズ１４と光学系１０４によって特許請求の範囲の光学系が構成されている。
対物レンズ１４は前側ケース１０２Ａに設けられたレンズ窓１０３を介してケース１０２前方に臨んで配置されている。
ケース１０２の前面右寄りの箇所には、撮影補助光を出射するフラッシュ１０８、セルフタイマーランプ１１０などが設けられている。
ケース１２の前面にはカバー１１２が上下にスライド可能に設けられ、このカバー１１２は、図１に示すようにレンズ窓１０３、フラッシュ１０８、セルフタイマーランプ１１０を前方に露出させる下限位置と、これらレンズ窓１０３、フラッシュ１０８、セルフタイマーランプ１１０を覆う上限位置とにスライドされる。
ケース１２の上面の左寄り箇所には、シャッターボタン１１４、電源ボタン１１６などが設けられている。
ケース１２の後面には静止画および動画などの画像や文字や記号などが表示されるディスプレイ１１８（液晶表示器）、撮影光学系１０４のズーミング動作を行なわせるためのズームスイッチ１２０、各種操作を行なうための十字スイッチ１２２および複数の操作ボタン１２４が設けられている。
ケース１２の左側面には、撮像装置１００を静止画撮影モード、動画撮影モード、再生・編集モードなどに切り替えるためのモードスイッチ１２６が設けられている。
図３、図４に示すように、ケース１０２の下面には、静止画あるいは動画などの画像などを記録するためのメモリカード１３２を装脱可能に収容するメモリ収容室１０２Ａと、撮像装置１００の電源を構成するバッテリー１３８を装脱可能に収容するバッテリー収容室１０２Ｂとがケース１２の前後方向（厚さ方向）に並べて設けられている。これらメモリ収容室１０２Ａ、バッテリー収容室１０２Ｂはケース１０２の下面にヒンジを介して連結された開閉蓋１０２Ｃによって開閉される。 Next, Embodiment 1 of the present invention will be described with reference to the drawings.
In this embodiment, a case where the lens barrel of the present invention is incorporated in an imaging apparatus will be described.
1 is a perspective view of the image pickup apparatus of the first embodiment as viewed from the front, FIG. 2 is a perspective view of the image pickup apparatus of the first embodiment as viewed from the rear, and FIG. 3 is a perspective view of the image pickup apparatus of the first embodiment as viewed from below. FIG. 4 is an explanatory diagram for explaining a storage state of the memory card and the battery, and FIG. 5 is a block diagram showing a control system of the imaging apparatus.
As shown in FIGS. 1 and 2, the imaging apparatus 100 is a digital still camera, and includes a rectangular plate-like case 102 that constitutes an exterior, and the case 102 includes a front case 102A and a rear case 102B. The front case 102A constitutes the front surface of the case 102, and the rear case 102B constitutes the rear surface of the case 102. In the present specification, the left and right sides of the case 102 are assumed to be viewed from the front.
As shown by a two-dot chain line in the drawing, the lens barrel 10 according to the present invention is incorporated in the right side portion of the case 102. The lens barrel 10 includes an objective lens 14, an image sensor 128, and an objective. An optical system 104 that guides the subject image captured by the lens 14 to the image sensor 128 is provided, and the objective lens 14 and the optical system 104 constitute an optical system as claimed.
The objective lens 14 is disposed facing the front of the case 102 through a lens window 103 provided in the front case 102A.
A flash 108 that emits photographing auxiliary light, a self-timer lamp 110, and the like are provided at a position on the right side of the front surface of the case 102.
A cover 112 is provided on the front surface of the case 12 so as to be slidable up and down. As shown in FIG. 1, the cover 112 has a lower limit position for exposing the lens window 103, the flash 108, and the self-timer lamp 110 forward, and these lenses. It is slid to the upper limit position covering the window 103, the flash 108, and the self-timer lamp 110.
A shutter button 114, a power button 116, and the like are provided on the left side of the upper surface of the case 12.
On the rear surface of the case 12, a display 118 (liquid crystal display) on which images such as still images and moving images, characters and symbols are displayed, a zoom switch 120 for performing a zooming operation of the photographing optical system 104, and various operations are performed. A cross switch 122 and a plurality of operation buttons 124 are provided.
A mode switch 126 for switching the imaging device 100 to a still image shooting mode, a moving image shooting mode, a playback / editing mode, or the like is provided on the left side surface of the case 12.
As shown in FIGS. 3 and 4, on the lower surface of the case 102, a memory accommodating chamber 102 A that detachably accommodates a memory card 132 for recording an image such as a still image or a moving image, and the imaging device 100. A battery housing chamber 102B for detachably housing the battery 138 constituting the power source is provided in the front-rear direction (thickness direction) of the case 12. The memory housing chamber 102A and the battery housing chamber 102B are opened and closed by an opening / closing lid 102C connected to the lower surface of the case 102 via a hinge.

図５に示すように、撮像素子１２８は、光学系１０４によって結像された被写体像を撮像するＣＣＤやＣＭＯＳセンサなどで構成されている。
撮像素子１２８で撮像された像は撮像信号として画像処理部１３０に出力され、画像処理部１３０ではこの撮像信号に基づいて静止画あるいは動画の画像データが生成され、メモリカード（記憶媒体）１３２に記録される。また、前記画像データは表示処理部１３４によりディスプレイ１１８に表示される。
さらに、撮像装置１００は、シャッタボタン１１４、十字スイッチ１２２、操作ボタン１２４、モードスイッチ１２６の操作に応じて、画像処理部１３０、表示処理部１３４を制御するＣＰＵなどを含む制御部１３６を備えている。 As shown in FIG. 5, the image sensor 128 includes a CCD, a CMOS sensor, or the like that captures a subject image formed by the optical system 104.
An image picked up by the image pickup device 128 is output as an image pickup signal to the image processing unit 130, and the image processing unit 130 generates image data of a still image or a moving image based on the image pickup signal and stores it in a memory card (storage medium) 132. To be recorded. The image data is displayed on the display 118 by the display processing unit 134.
Furthermore, the imaging apparatus 100 includes a control unit 136 including a CPU that controls the image processing unit 130 and the display processing unit 134 in response to operations of the shutter button 114, the cross switch 122, the operation button 124, and the mode switch 126. Yes.

図６はレンズ鏡筒１０を斜め前方から見た斜視図、図７はレンズ鏡筒１０を斜め後方から見た斜視図、図８はレンズ鏡筒１０の一部の構成を示す分解斜視図、図９はレンズ鏡筒１０の残りの構成を示す分解斜視図、図１０は図６のＸＸ線断面図、図１１は図６のＹＹ線断面図、図１２はレンズ鏡筒１０の左側部分の断面斜視図、図１３はレンズ鏡筒１０の右側部分の断面斜視図、図１４は第１鏡筒分割体１２０２の横断面図、図１５は第２鏡筒分割体１２０４の横断面図、図１６はズーム用可動レンズ群１８、フォーカス用可動レンズ群２０の斜視図、図１７は第２鏡筒分割体１２０４の要部の断面斜視図である。 6 is a perspective view of the lens barrel 10 as viewed obliquely from the front, FIG. 7 is a perspective view of the lens barrel 10 as viewed from obliquely rear, and FIG. 8 is an exploded perspective view showing a part of the configuration of the lens barrel 10. 9 is an exploded perspective view showing the remaining structure of the lens barrel 10, FIG. 10 is a cross-sectional view taken along line XX of FIG. 6, FIG. 11 is a cross-sectional view taken along line YY of FIG. 13 is a cross-sectional perspective view of the right side portion of the lens barrel 10, FIG. 14 is a cross-sectional view of the first lens barrel divided body 1202, and FIG. 15 is a cross-sectional view of the second lens barrel divided body 1204. 16 is a perspective view of the zoom movable lens group 18 and the focus movable lens group 20, and FIG. 17 is a cross-sectional perspective view of the main part of the second barrel segment 1204.

図６乃至図９に示すように、レンズ鏡筒１０は、鏡筒１２と、対物レンズ１４と、撮像素子１２８と、光学系１０４とを含んで構成されている。
本実施例では、光学系１０４は、プリズム１６と、ズーム用可動レンズ群１８と、フォーカス用可動レンズ群２０と、第１の固定レンズ群２２と、第２の固定レンズ群２４と、第３の固定レンズ群２６と、ズーム用可動レンズ群１８用の案内機構２８と、フォーカス用可動レンズ群２０用の案内機構３０とを備えている。
さらに、ズーム用可動レンズ群１８を移動させる駆動手段３２と、フォーカス用可動レンズ群２０を移動させる駆動手段３４とが設けられている。 As shown in FIGS. 6 to 9, the lens barrel 10 includes a lens barrel 12, an objective lens 14, an image sensor 128, and an optical system 104.
In this embodiment, the optical system 104 includes a prism 16, a zoom movable lens group 18, a focus movable lens group 20, a first fixed lens group 22, a second fixed lens group 24, and a third lens. A fixed lens group 26, a guide mechanism 28 for the zoom movable lens group 18, and a guide mechanism 30 for the focus movable lens group 20.
Further, driving means 32 for moving the zoom movable lens group 18 and driving means 34 for moving the focus movable lens group 20 are provided.

図６、図７に示すように、鏡筒１２は、全体として幅および長さ並びに厚さを有する平板形状を呈しており、対物レンズ１４と撮像素子１２８と光学系１０４とは鏡筒１２の幅方向の中央部で鏡筒１２の長さ方向に沿って並べられて配置されている。
鏡筒１２は、長さ方向において分割された第１鏡筒分割体１２０２および第２鏡筒分割体１２０４と、これら２つの鏡筒分割体１２０２，１２０４の間に挟まれる第３鏡筒分割体１２０６とで構成され、鏡筒１２の長手方向の一方の半部に第１鏡筒分割体１２０２が位置し、鏡筒１２の長手方向方の他方の半部に第２鏡筒分割体１２０４が位置し、これら第１鏡筒分割体１２０２および第２鏡筒分割体１２０４の間に第３鏡筒分割体１２０８が介在されている。
なお、本実施例では、図１に示すように、鏡筒１２の長さ方向が上下方向に向けて配置されることから、鏡筒１２の上部に第１鏡筒分割体１２０２が位置し、鏡筒１２の下部に第２鏡筒分割体１２０４が位置し、鏡筒１２の上下方向の中央部に第３鏡筒分割体１２０８が位置している。そして、撮像装置１００のケース１０２の前面に平行する鏡筒１２の厚さ方向の一方の面が鏡筒１２の前面となり、ケース１０２の後面に平行する他方の面が鏡筒１２の後面となり、鏡筒１２の幅方向の一方の面が左側面となり、他方の面が右側面となる。また、本実施例では、これら第１、第２、第３鏡筒分割体１２０２、１２０４、１２０６は合成樹脂材料によって形成されている。 As shown in FIGS. 6 and 7, the lens barrel 12 has a flat plate shape having a width, a length, and a thickness as a whole, and the objective lens 14, the imaging device 128, and the optical system 104 are included in the lens barrel 12. They are arranged along the length direction of the lens barrel 12 at the center in the width direction.
The lens barrel 12 includes a first lens barrel divided body 1202 and a second lens barrel divided body 1204 divided in the length direction, and a third lens barrel divided body sandwiched between the two lens barrel divided bodies 1202 and 1204. 1206, the first lens barrel divided body 1202 is located in one half of the lens barrel 12 in the longitudinal direction, and the second lens barrel divided body 1204 is located in the other half of the lens barrel 12 in the longitudinal direction. The third lens barrel divided body 1208 is interposed between the first lens barrel divided body 1202 and the second lens barrel divided body 1204.
In the present embodiment, as shown in FIG. 1, since the length direction of the lens barrel 12 is arranged in the vertical direction, the first lens barrel divided body 1202 is located on the upper portion of the lens barrel 12, The second lens barrel divided body 1204 is located at the lower part of the lens barrel 12, and the third lens barrel divided body 1208 is located at the center in the vertical direction of the lens barrel 12. Then, one surface in the thickness direction of the lens barrel 12 parallel to the front surface of the case 102 of the imaging device 100 is the front surface of the lens barrel 12, and the other surface parallel to the rear surface of the case 102 is the rear surface of the lens barrel 12. One surface in the width direction of the lens barrel 12 is a left side surface, and the other surface is a right side surface. In the present embodiment, the first, second, and third lens barrel divided bodies 1202, 1204, and 1206 are formed of a synthetic resin material.

図８、図１０乃至図１３に示すように、第１鏡筒分割体１２０２の内部には、下面に開放状の部品収容空間１２０２Ａが設けられており、対物レンズ１４はその前面側にレンズ押え１４０２が位置し後面側に遮光枠１４０４が位置した状態で、第１鏡筒分割体１２０２の前面の上部でかつ幅方向の中央部に取着されている。
プリズム１６は、対物レンズ１４で捉えた像を下部に向けて（撮像素子１２８側に）反射させるもので本実施例ではプリズムが用いられている。プリズム１６は、部品収容空間１２０２Ａで対物レンズ１４に臨む箇所に配置されている。
第１の固定レンズ群２２とズーム用可動レンズ群１８とは、部品収容空間１２０２Ａ内でプリズム１６の下方に配置されている。
第１の固定レンズ群２２は、第１鏡筒分割体１２０２の取付部に組み込まれるレンズ２２０２と、このレンズ２２０２を前記取付部に固定させる押え部材２２０４（遮光枠を兼ねる）とで構成されている。 As shown in FIGS. 8 and 10 to 13, the first lens barrel divided body 1202 is provided with an open component housing space 1202 A on the lower surface, and the objective lens 14 has a lens presser on the front side thereof. In a state where 1402 is positioned and the light shielding frame 1404 is positioned on the rear surface side, it is attached to the upper part of the front surface of the first lens barrel divided body 1202 and the central portion in the width direction.
The prism 16 reflects an image captured by the objective lens 14 downward (to the image sensor 128 side), and a prism is used in this embodiment. The prism 16 is disposed at a location facing the objective lens 14 in the component housing space 1202A.
The first fixed lens group 22 and the zoom movable lens group 18 are disposed below the prism 16 in the component housing space 1202A.
The first fixed lens group 22 includes a lens 2202 incorporated in the attachment portion of the first barrel segment 1202 and a pressing member 2204 (also serving as a light shielding frame) that fixes the lens 2202 to the attachment portion. Yes.

図８に示すように、ズーム用可動レンズ群１８は、第１のズームレンズ１８０２と、互いに貼り合わされた第２、第３のズームレンズ１８０４、１８０５と、これら第１、第２、第３のズームレンズ１８０２、１８０４、１８０５の外周部をカシメにより支持したズーム用レンズ枠１８０６とを有している。
図１４に示すように、鏡筒１２の厚さ方向の両端に位置する第１、第２、第３のズームレンズ１８０２、１８０４、１８０５の部分はそれぞれ切り取られ、これにより鏡筒１２の厚さ方向の端部に位置する第１、第２、第３のズームレンズ１８０２、１８０４、１８０５の両端には、鏡筒１２の前面および後面に平行して直線状に延在する縁部１８０８が設けられている。
ズーム用レンズ枠１８０６は、第１、第２、第３のズームレンズ１８０２、１８０４、１８０５の周囲に位置しこれら第１、第２、第３のズームレンズ１８０２、１８０４、１８０５を保持する保持部１８１０と、この保持部１８１０から部品収容空間１２０２Ａ内の幅方向に延在する延在部１８１２とを有している。
保持部１８１０には、第１、第２、第３のズームレンズ１８０２、１８０４、１８０５の縁部１８０８に対応して鏡筒１２の前面および後面に平行して延在する直線部１８１４がそれぞれ設けられている。
図１６に示すように、延在部１８１２には、ロッド挿通孔１８１４が設けられ、また、鏡筒１２の長手方向において互いに対向するフランジ１８１６、１８１６が設けられ、これらフランジ１８１６、１８１６には、図８に示すように、軸３６０２、３６０２を介して雌ねじ３６０４を有する雌ねじ部材３６が鏡筒１２の長手方向に移動不能に結合される。
また、延在部１８１２とは反対側に位置する保持部１８１０の箇所で部品収容空間１２０２Ａの隅部１２０２Ｂ（本実施例では左側面と後面とが交わる箇所）に位置する箇所に係合溝１８１８が形成されている。 As shown in FIG. 8, the zoom movable lens group 18 includes a first zoom lens 1802, second and third zoom lenses 1804 and 1805 bonded together, and the first, second, and third zoom lenses. And a zoom lens frame 1806 in which outer peripheral portions of the zoom lenses 1802, 1804, and 1805 are supported by caulking.
As shown in FIG. 14, the first, second, and third zoom lenses 1802, 1804, and 1805 located at both ends in the thickness direction of the lens barrel 12 are each cut off, whereby the thickness of the lens barrel 12 is obtained. Edges 1808 that extend linearly in parallel to the front and rear surfaces of the lens barrel 12 are provided at both ends of the first, second, and third zoom lenses 1802, 1804, and 1805 positioned at the end portions in the direction. It has been.
The zoom lens frame 1806 is positioned around the first, second, and third zoom lenses 1802, 1804, and 1805, and holds the first, second, and third zoom lenses 1802, 1804, and 1805. 1810 and an extending portion 1812 extending from the holding portion 1810 in the width direction in the component housing space 1202A.
The holding portion 1810 is provided with linear portions 1814 extending in parallel to the front and rear surfaces of the lens barrel 12 corresponding to the edge portions 1808 of the first, second, and third zoom lenses 1802, 1804, and 1805, respectively. It has been.
As shown in FIG. 16, the extending portion 1812 is provided with a rod insertion hole 1814, and flanges 1816 and 1816 facing each other in the longitudinal direction of the lens barrel 12 are provided, and these flanges 1816 and 1816 include As shown in FIG. 8, a female screw member 36 having a female screw 3604 is coupled through the shafts 3602 and 3602 so as not to move in the longitudinal direction of the lens barrel 12.
In addition, the engaging groove 1818 is located at a portion of the holding portion 1810 located on the side opposite to the extending portion 1812 and located at a corner portion 1202B of the component housing space 1202A (where the left side surface and the rear surface intersect in this embodiment). Is formed.

ロッド挿通孔１８１４には、第１鏡筒分割体１２０２の長さ方向に延在する金属製のメインガイド軸３８が滑動可能に挿通されている。このメインガイド軸３８はその長さ方向の両端が第１鏡筒分割体１２０２の上面を構成する壁部と、第３鏡筒分割体１２０６の壁部とで支持されている。メインガイド軸３８は第１、第２、第３のズームレンズ１８０２、１８０４、１８０５の光軸と平行して延在しており、本実施例では第１鏡筒分割体１２０２の長さ方向に延在している。したがって、メインガイド軸３８はズーム用可動レンズ群１８を該ズーム用可動レンズ群１８の光軸方向に案内している。
係合溝１８１８には、第１鏡筒分割体１２０２の長さ方向に延在するサブガイド軸４０が滑動可能に挿通されている。したがって、サブガイド軸４０はズーム用レンズ１８がメインガイド軸３８の回りに回転することを阻止している。サブガイド軸４０は第１鏡筒分割体１２０２と一体に形成されており、したがって、合成樹脂製である。サブガイド軸４０は、詳細には、部品収容空間１２０２Ａの隅部１２０２Ｂから突出する脚部４００２と、この脚部４００２の先端に設けられた軸状部分４００４とで構成されている。サブガイド軸４０は第１、第２、第３のズームレンズ１８０２、１８０４、１８０５の光軸と平行して延在しており、本実施例では第１鏡筒分割体１２０２の長さ方向に延在している。
ズーム用可動レンズ群１８用の案内機構２８は、これらメインガイド軸３８とサブガイド軸４０によって構成されている。 A metal main guide shaft 38 extending in the length direction of the first lens barrel divided body 1202 is slidably inserted into the rod insertion hole 1814. Both ends of the main guide shaft 38 in the length direction are supported by a wall portion constituting the upper surface of the first barrel segment 1202 and a wall portion of the third barrel segment 1206. The main guide shaft 38 extends in parallel with the optical axes of the first, second, and third zoom lenses 1802, 1804, and 1805. In this embodiment, the main guide shaft 38 extends in the length direction of the first lens barrel divided body 1202. It is extended. Therefore, the main guide shaft 38 guides the zoom movable lens group 18 in the optical axis direction of the zoom movable lens group 18.
A sub guide shaft 40 extending in the length direction of the first lens barrel divided body 1202 is slidably inserted into the engagement groove 1818. Accordingly, the sub guide shaft 40 prevents the zoom lens 18 from rotating around the main guide shaft 38. The sub guide shaft 40 is formed integrally with the first lens barrel divided body 1202, and is therefore made of synthetic resin. Specifically, the sub guide shaft 40 includes a leg portion 4002 protruding from the corner portion 1202B of the component housing space 1202A, and a shaft-like portion 4004 provided at the tip of the leg portion 4002. The sub guide shaft 40 extends in parallel with the optical axes of the first, second, and third zoom lenses 1802, 1804, and 1805. In this embodiment, the sub guide shaft 40 extends in the length direction of the first barrel segment 1202. It is extended.
The guide mechanism 28 for the zoom movable lens group 18 includes the main guide shaft 38 and the sub guide shaft 40.

図８、図１６に示すように、ズーム用可動レンズ群１８を移動させる駆動手段３２は、鏡筒１２の長さ方向に延在するホルダ３２０２と、ホルダ３２０２の上部に設けられたモータ３２０４と、ホルダ３２０２に沿って延在しモータ３２０４により回転駆動される雄ねじ部材３２０６とを有している。
ホルダ３２０２は第１鏡筒分割体１２０２の右側面の欠部に取着され、これにより雄ねじ部材３２０６が部品収容空間１２０２Ａに位置し、モータ３２０４は第１鏡筒分割体１２０２の上面に位置する。
雄ねじ部材３２０６は雌ねじ部材３６の雌ねじ３６０４に螺合され、したがってモータ３２０４の正逆転によりズーム用可動レンズ群１８はメインガイド軸３８およびサブガイド軸４０に案内されつつそれらの光軸方向に沿って往復移動され、ズーム動作がなされる。
本実施例では、図１４に示すように、ズーム用可動レンズ群１８とメインガイド軸３８と雄ねじ部材３２０６とが第１鏡筒分割体１２０２の内部で第１鏡筒分割体１２０２の幅方向に並べられて配置され、サブガイド軸４０はメインガイド軸３８および雄ねじ部材３２０６とは反対側に位置するズーム用レンズ枠１８０６箇所に配置されることになる。 As shown in FIGS. 8 and 16, the driving means 32 for moving the zoom movable lens group 18 includes a holder 3202 extending in the length direction of the lens barrel 12, and a motor 3204 provided on the top of the holder 3202. And a male screw member 3206 that extends along the holder 3202 and is rotationally driven by a motor 3204.
The holder 3202 is attached to a notch on the right side surface of the first lens barrel divided body 1202, whereby the male screw member 3206 is located in the component housing space 1202 A, and the motor 3204 is located on the upper surface of the first lens barrel divided body 1202. .
The male screw member 3206 is screwed into the female screw 3604 of the female screw member 36. Therefore, the zoom movable lens group 18 is guided along the optical axis direction while being guided by the main guide shaft 38 and the sub guide shaft 40 by forward and reverse rotation of the motor 3204. It is reciprocated and zooming is performed.
In the present embodiment, as shown in FIG. 14, the zoom movable lens group 18, the main guide shaft 38, and the male screw member 3206 are arranged in the width direction of the first barrel segment 1202 inside the first barrel segment 1202. The sub guide shafts 40 are arranged side by side, and are disposed at the zoom lens frame 1806 at the opposite side of the main guide shaft 38 and the male screw member 3206.

図８に示すように、第３鏡筒分割体１２０６は、部品収容空間１２０２Ａ内に臨む内部部分１２０６Ａと、部品収容空間１２０２Ａ外に位置する外部部分１２０６Ｂとを有している。
第２の固定レンズ群２４は、その光軸をズーム用可動レンズ群１８の光軸と一致させて内部部分１２０６Ａに取着され、また、第２固定レンズ２４の後面にアイリス（絞り）４２が配置されている。このアイリス４２は、第３鏡筒分割体１２０６の外部部分１２０６Ｂに取着された駆動部４４により開閉される。
本実施例では、図１８に示すように、サブガイド軸４０は第１鏡筒分割体１２０２の下面よりも下方に突出され、より詳細には第１鏡筒分割体１２０２が第３鏡筒分割体１２０６に合わされる合わせ面よりも下方に突出され、このサブガイド軸４０の突出部分４０Ａが、第３鏡筒分割体１２０６の合わせ面の孔１２０６Ａに嵌合されることで第１鏡筒分割体１２０２と第３鏡筒分割体１２０６との位置決めがなされている。
なお、第１鏡筒分割体１２０２と第３鏡筒分割体１２０６とは図１４に示すように、前記駆動部４４近傍の箇所でねじ２０２により取着され、第２鏡筒分割体１２０４と第３鏡筒分割体１２０６とは図９に示すように、右側面寄りの箇所によりねじ２０４により取着されている。 As shown in FIG. 8, the third barrel segment 1206 has an internal portion 1206A that faces the component storage space 1202A and an external portion 1206B that is positioned outside the component storage space 1202A.
The second fixed lens group 24 is attached to the inner portion 1206A with its optical axis coinciding with the optical axis of the zoom movable lens group 18, and an iris (aperture) 42 is provided on the rear surface of the second fixed lens 24. Is arranged. The iris 42 is opened and closed by a drive unit 44 attached to the outer portion 1206B of the third barrel segment 1206.
In this embodiment, as shown in FIG. 18, the sub guide shaft 40 protrudes below the lower surface of the first lens barrel divided body 1202, and more specifically, the first lens barrel divided body 1202 is divided into the third lens barrel divided. The projection part 40A of the sub guide shaft 40 protrudes downward from the mating surface to be fitted to the body 1206, and is fitted into the hole 1206A of the mating face of the third lens barrel split body 1206 so that the first lens barrel splitting is performed. The body 1202 and the third lens barrel divided body 1206 are positioned.
As shown in FIG. 14, the first lens barrel divided body 1202 and the third lens barrel divided body 1206 are attached by screws 202 in the vicinity of the drive unit 44, and the second lens barrel divided body 1204 and the first lens barrel divided body 1204 As shown in FIG. 9, the three-barrel divided body 1206 is attached by a screw 204 at a position near the right side surface.

第２鏡筒分割体１２０４の内部には、本実施例では、上下に開放された部品収容空間１２０４Ａが形成されており、第２鏡筒分割体１２０４の下部に撮像素子１２８取付用のホルダ４６が取着されることでこの部品収容空間１２０４Ａの下端は閉塞されている。したがって、本実施例では、第２鏡筒分割体１２０４はホルダ４６を含んで構成されている。
フォーカス用可動レンズ群２０と第３の固定レンズ群２６は、部品収容空間１２０４Ａ内で第２鏡筒分割体１２０４の幅方向中央に位置する箇所に配置されている。 In the present embodiment, a component housing space 1204 A that is opened up and down is formed inside the second barrel segment 1204, and a holder 46 for attaching the image sensor 128 is formed below the second barrel segment 1204. Is attached, the lower end of the component housing space 1204A is closed. Therefore, in the present embodiment, the second lens barrel divided body 1204 includes the holder 46.
The focus movable lens group 20 and the third fixed lens group 26 are disposed at a position located in the center in the width direction of the second barrel segment 1204 in the component housing space 1204A.

フォーカス用可動レンズ群２０は、互いに貼り合わされた第１、第２のフォーカスレンズ２００２、２００４と、これら第１、第２のフォーカスレンズ２００２、２００４を支持するフォーカス用レンズ枠２００６とを有している。
図１５に示すように、鏡筒１２の厚さ方向の両端に位置する第１、第２のフォーカスレンズ２００２、２００４の部分はそれぞれ切り取られ、これにより鏡筒１２の厚さ方向の端部に位置する第１、第２のフォーカスレンズ２００２、２００４の両端には、鏡筒１２の前面および後面に平行して直線状に延在する縁部２００８が設けられている。
フォーカス用レンズ枠２００６は、第１、第２のフォーカスレンズ２００２、２００４の周囲に位置しこれら第１、第２のフォーカスレンズ２００２、２００４を保持する保持部２０１０と、この保持部２０１０から部品収容空間１２０４Ａ内の幅方向に延在する延在部２０１２とを有している。
保持部２０１０には、第１、第２のフォーカスレンズ２００２、２００４の縁部２００８に対応して鏡筒１２の前面および後面に平行して延在する直線部２０１４がそれぞれ設けられている。
延在部２０１２には、ロッド挿通孔２０１４が設けられ、また、図１６に示すように、鏡筒１２の長手方向において互いに対向するフランジ２０１６、２０１６が設けられ、これらフランジ２０１６、２０１６には、図９に示すように、軸４８０２、４８０２を介して雌ねじ４８０４を有する雌ねじ部材４８が鏡筒１２の長手方向に移動不能に結合される。
また、延在部２０１２とは反対側に位置する保持部２０１０の箇所で部品収容空間１２０４Ａの隅部１４０２Ｂ（本実施例では左側面と後面とが交わる箇所）に位置する箇所に係合溝２０１８が形成されている。 The focus movable lens group 20 includes first and second focus lenses 2002 and 2004 that are bonded to each other, and a focus lens frame 2006 that supports the first and second focus lenses 2002 and 2004. Yes.
As shown in FIG. 15, the first and second focus lenses 2002 and 2004 located at both ends of the lens barrel 12 in the thickness direction are respectively cut off, so that the lens barrel 12 has end portions in the thickness direction. At both ends of the first and second focus lenses 2002 and 2004 that are positioned, edges 2008 that extend linearly in parallel to the front and rear surfaces of the lens barrel 12 are provided.
A focus lens frame 2006 is positioned around the first and second focus lenses 2002 and 2004, holds a first holding lens 2010, and a second holding lens 2010. The holding unit 2010 accommodates components. And an extension part 2012 extending in the width direction in the space 1204A.
The holding portion 2010 is provided with linear portions 2014 that extend in parallel with the front and rear surfaces of the lens barrel 12 corresponding to the edges 2008 of the first and second focus lenses 2002 and 2004, respectively.
The extension portion 2012 is provided with a rod insertion hole 2014, and as shown in FIG. 16, flanges 2016 and 2016 facing each other in the longitudinal direction of the lens barrel 12 are provided. As shown in FIG. 9, a female screw member 48 having a female screw 4804 is movably coupled in the longitudinal direction of the lens barrel 12 via shafts 4802 and 4802.
Further, the engaging groove 2018 is located at a position of the holding portion 2010 located on the opposite side of the extending portion 2012 at a corner portion 1402B of the component accommodating space 1204A (where the left side surface and the rear surface intersect in this embodiment). Is formed.

ロッド挿通孔２０１４には、第２鏡筒分割体１２０４の長さ方向に延在する金属製のメインガイド軸５０が滑動可能に挿通されている。このメインガイド軸５０はその長さ方向の両端が第３鏡筒分割体１２０６の壁部と、第２鏡筒分割体１２０４の下部に設けられた壁部とで支持されている。メインガイド軸５０は第１、第２のフォーカスレンズ２００２、２００４の光軸と平行して延在しており、本実施例では第２鏡筒分割体１２０４の長さ方向に延在している。したがって、メインガイド軸５０はフォーカス用可動レンズ群２０を該フォーカス用可動レンズ２８の光軸方向に案内している。
係合溝２０１８には、第２鏡筒分割体１２０４の長さ方向に延在するサブガイド軸５２が滑動可能に挿通されている。したがって、サブガイド軸５２はフォーカス用レンズ２０がメインガイド軸５０の回りに回転することを阻止している。サブガイド軸５２は第２鏡筒分割体１２０４と一体に形成されており、したがって、合成樹脂製である。サブガイド軸５２は、詳細には、部品収容空間１２０４Ａの隅部から突出する脚部５２０２と、この脚部５２０２の先端に設けられた軸状部分５２０４とで構成されている。サブガイド軸５２は第１、第２のフォーカスレンズ２００２、２００４の光軸と平行して延在しており、本実施例では第２鏡筒分割体１２０４の長さ方向に延在している。
フォーカス用可動レンズ群２０用の案内機構３０は、これらメインガイド軸３８とサブガイド軸４０によって構成されている。
なお、本実施の形態では、図１８に示すように、サブガイド軸５２は第２鏡筒分割体１２０４の上面よりも上方に突出され、より詳細には第２鏡筒分割体１２０４が第３鏡筒分割体１２０６に合わされる合わせ面よりも上方に突出され、このサブガイド軸５２の突出部分５２Ａが、第３鏡筒分割体１２０６の合わせ面の孔１２０６Ｂに嵌合されることで第２鏡筒分割体１２０４と第３鏡筒分割体１２０６の位置決めがなされている。 A metal main guide shaft 50 extending in the length direction of the second barrel segment 1204 is slidably inserted into the rod insertion hole 2014. Both ends of the main guide shaft 50 in the length direction are supported by a wall portion of the third lens barrel divided body 1206 and a wall portion provided at a lower portion of the second lens barrel divided body 1204. The main guide shaft 50 extends in parallel with the optical axes of the first and second focus lenses 2002 and 2004, and extends in the length direction of the second barrel segment 1204 in this embodiment. . Therefore, the main guide shaft 50 guides the focus movable lens group 20 in the optical axis direction of the focus movable lens 28.
A sub guide shaft 52 extending in the length direction of the second lens barrel divided body 1204 is slidably inserted into the engagement groove 2018. Therefore, the sub guide shaft 52 prevents the focusing lens 20 from rotating around the main guide shaft 50. The sub guide shaft 52 is formed integrally with the second lens barrel divided body 1204 and is therefore made of synthetic resin. Specifically, the sub-guide shaft 52 includes a leg portion 5202 that protrudes from a corner of the component housing space 1204 A, and a shaft-like portion 5204 provided at the tip of the leg portion 5202. The sub guide shaft 52 extends in parallel with the optical axes of the first and second focus lenses 2002 and 2004, and extends in the length direction of the second barrel segment 1204 in this embodiment. .
The guide mechanism 30 for the focus movable lens group 20 includes the main guide shaft 38 and the sub guide shaft 40.
In the present embodiment, as shown in FIG. 18, the sub guide shaft 52 protrudes upward from the upper surface of the second lens barrel divided body 1204. More specifically, the second lens barrel divided body 1204 has a third shape. It protrudes above the mating surface to be fitted to the lens barrel divided body 1206, and the projecting portion 52A of the sub-guide shaft 52 is fitted into the hole 1206B on the mating surface of the third lens barrel divided body 1206, so that the second. The lens barrel divided body 1204 and the third lens barrel divided body 1206 are positioned.

フォーカス用可動レンズ群２０を移動させる駆動手段３４は、鏡筒１２の長さ方向に延在するホルダ３４０２と、ホルダ３４０２の下部に設けられたモータ３４０４と、ホルダ３４０２に沿って延在しモータ３４０４により回転駆動される雄ねじ部材３４０６とを有している。
ホルダ３４０２は第２鏡筒分割体１２０４の右側面の欠部に取着され、これにより雄ねじ部材３４０６が部品収容空間１２０４Ａに位置し、モータ３４０４は第２鏡筒分割体１２０４の下部に位置する。
雄ねじ部材３４０６は雌ねじ部材４８の雌ねじ４８０４に螺合され、したがってモータ３４０４の正逆転によりフォーカス用可動レンズ群２０はメインガイド軸５０およびサブガイド軸５２に案内されつつそれらの光軸方向に沿って往復移動され、フォーカス動作がなされる。
したがって、本実施例では、フォーカス用可動レンズ群２０とメインガイド軸５０と雄ねじ部材３４０４とが第２鏡筒分割体１２０４の内部で第２鏡筒分割体１２０４の幅方向に並べられて配置され、サブガイド軸５２はメインガイド軸５０および雄ねじ部材３０６とは反対側に位置するフォーカス用レンズ枠２００６箇所に配置されることになる。
第３の固定レンズ群２６は、フォーカス用可動レンズ群２０の下方の部品収容空間１２０４Ａ箇所に配置され、第２鏡筒分割体１２０４の取付部に組み込まれる第３の固定レンズ群２６０２と、この第３の固定レンズ群２６０２を前記取付部に固定させる押え部材２６０４とで構成されている。 The driving means 34 for moving the focus movable lens group 20 includes a holder 3402 extending in the length direction of the lens barrel 12, a motor 3404 provided below the holder 3402, and a motor extending along the holder 3402. And a male screw member 3406 that is rotationally driven by 3404.
The holder 3402 is attached to a notch on the right side surface of the second barrel segment 1204, whereby the male screw member 3406 is located in the component housing space 1204 A, and the motor 3404 is located in the lower portion of the second barrel segment 1204. .
The male screw member 3406 is screwed into the female screw 4804 of the female screw member 48. Accordingly, the movable lens group for focus 20 is guided along the optical axis direction while being guided by the main guide shaft 50 and the sub guide shaft 52 by forward and reverse rotation of the motor 3404. A reciprocating movement is performed and a focusing operation is performed.
Therefore, in the present embodiment, the focus movable lens group 20, the main guide shaft 50, and the male screw member 3404 are arranged in the width direction of the second barrel segment 1204 inside the second barrel segment 1204. The sub guide shaft 52 is disposed at the focus lens frame 2006 located on the opposite side of the main guide shaft 50 and the male screw member 306.
The third fixed lens group 26 is disposed in a part accommodating space 1204A below the focus movable lens group 20, and is installed in a mounting portion of the second barrel segment 1204. It is composed of a pressing member 2604 that fixes the third fixed lens group 2602 to the mounting portion.

なお、図１１、図１２、図１３、図１７に示すように、部品収容空間１２０４Ａに臨む第２鏡筒分割体１２０４の後面箇所で第２鏡筒分割体１２０４Ａの上端と第２の固定レンズ群２４との間の箇所には凹凸部１２０４Ｃが設けられている。
また、部品収容空間１２０４Ａに臨む第２鏡筒分割体１２０４の後面箇所で第３の固定レンズ群２６と撮像素子１２８との間の箇所には凹凸部１２０４Ｄが設けられている。
これらの凹凸部１２０４Ｃ、１２０４Ｄは、対物レンズ１４、プリズム１６、第１の固定レンズ群２２、ズーム用可動レンズ群１８、第２固定レンズ群２４、フォーカス用可動レンズ群２０を介して進入してきた光のうち、部品収容空間１２０４Ａに臨む第２鏡筒分割体１２０４の後面箇所に到達した光が該後面箇所で反射されることで、いわゆるフレアあるいはゴーストと呼ばれる反射光が発生し、この反射光が撮像素子１２８の受光面に到達して撮像素子１２８の撮像信号に対して悪影響を及ぼすことを防止するために設けられている。
なお、撮像素子１２８から遠い箇所に設けられた凹凸部１２０４Ｃの凹凸の間隔に対して撮像素子１２８から近い箇所に設けられた凹凸部１２０４Ｄの凹凸の間隔が大きく形成されている。これは、凹凸部１２０４Ｃに当たる前記光の角度に対して凹凸部１２０４Ｄに当たる前記光の角度がより小さいためであり、このように凹凸部１２０４Ｃ、１２０４Ｄの凹凸の間隔を変えることで、第２鏡筒分割体１２０４の成形時に金型からの取り外し性が向上される利点がある。 As shown in FIGS. 11, 12, 13, and 17, the upper end of the second barrel segment 1204A and the second fixed lens at the rear surface portion of the second barrel segment 1204 facing the component housing space 1204A. An uneven portion 1204 C is provided at a location between the groups 24.
In addition, an uneven portion 1204D is provided at a location between the third fixed lens group 26 and the image sensor 128 at a location on the rear surface of the second barrel segment 1204 facing the component housing space 1204A.
These concavo-convex portions 1204C and 1204D have entered through the objective lens 14, the prism 16, the first fixed lens group 22, the zoom movable lens group 18, the second fixed lens group 24, and the focus movable lens group 20. Of the light, the light that has reached the rear surface portion of the second barrel segment 1204 facing the component housing space 1204A is reflected by the rear surface portion, so that reflected light called so-called flare or ghost is generated. Is provided in order to prevent the image sensor 128 from reaching the light receiving surface of the image sensor 128 and adversely affecting the image signal of the image sensor 128.
Note that the unevenness interval of the uneven portion 1204D provided near the image sensor 128 is formed larger than the unevenness interval of the uneven portion 1204C provided at a location far from the image sensor 128. This is because the angle of the light striking the concave and convex portion 1204D is smaller than the angle of the light striking the concave and convex portion 1204C, and thus the second lens barrel can be obtained by changing the spacing of the concave and convex portions of the concave and convex portions 1204C and 1204D. There is an advantage that the detachability from the mold is improved when the divided body 1204 is molded.

次に、撮像素子１２８の取付構造について説明する。
図１９は撮像素子１２８の取付構造を示す分解斜視図、図２０は図１９のＸＸ線断面図、図２１はホルダ４６に取着された撮像素子を斜め下方から見た状態を示す斜視図である。
図１０に示すように、鏡筒１２の下部には撮像素子１２８を配設するための撮像素子用取付部１２０５が設けられている。
撮像素子用取付部１２０５は、撮像素子１２８を部品収容空間１２０４Ａに臨ませる開口１２０４Ｂと、この開口１２０４Ｂの周囲に設けられた取付座１２０４Ｃとを備えている。
本実施例では、撮像素子１２８はホルダ４６により保持されて撮像素子ユニット５４が構成されており、この撮像素子ユニット５４が撮像素子用取付部１２０５に取付けられることで撮像素子１２８が鏡筒１２に配設されている。 Next, the mounting structure of the image sensor 128 will be described.
19 is an exploded perspective view showing the mounting structure of the image sensor 128, FIG. 20 is a cross-sectional view taken along the line XX of FIG. 19, and FIG. 21 is a perspective view showing the image sensor attached to the holder 46 as viewed obliquely from below. is there.
As shown in FIG. 10, an image sensor mounting portion 1205 for disposing the image sensor 128 is provided at the bottom of the lens barrel 12.
The image sensor mounting portion 1205 includes an opening 1204B that allows the image sensor 128 to face the component housing space 1204A, and a mounting seat 1204C provided around the opening 1204B.
In this embodiment, the image sensor 128 is held by the holder 46 to constitute the image sensor unit 54, and the image sensor 128 is attached to the lens barrel 12 by attaching the image sensor unit 54 to the image sensor mounting portion 1205. It is arranged.

図２０に示すように、撮像素子１２８は、撮像部１２８Ａと、この撮像部１２８Ａが収容されたパッケージ１２８Ｂとを含んで構成されている。
パッケージ１２８Ｂは、ケース１２８Ｃとシールガラス１２８Ｄとを備えている。
ケース１２８Ｃは矩形板状を呈し、上面１２８Ｃ１と、４つの側面１２８Ｃ２と、下面１２８Ｃ３を有し、上面１２８Ｃ１に凹部１２８Ｅが形成され、撮像部１２８Ａはこの凹部１２８Ｅの底面にその受光面を上方に臨ませて取着されている。撮像部１２８Ａは、例えば、ＣＣＤやＣＭＯＳセンサなどによって構成されている。また、ケース１２８Ｃの下面１２８Ｃ３には撮像部１２８Ａに対する信号の授受を行なう配線部材としてのフレキシブル基板１２９が取着されている。
シールガラス１２８Ｄは凹部１２８Ｅを覆うようにケース１２８Ｃの上面１２８Ｃ１に取着されている。 As shown in FIG. 20, the imaging device 128 includes an imaging unit 128A and a package 128B in which the imaging unit 128A is accommodated.
The package 128B includes a case 128C and a seal glass 128D.
The case 128C has a rectangular plate shape, and has an upper surface 128C1, four side surfaces 128C2, and a lower surface 128C3. A recess 128E is formed on the upper surface 128C1, and the imaging unit 128A has a light receiving surface on the bottom surface of the recess 128E. It is attached to face. The imaging unit 128A is configured by, for example, a CCD or a CMOS sensor. A flexible substrate 129 is attached to the lower surface 128C3 of the case 128C as a wiring member that transmits and receives signals to the imaging unit 128A.
Seal glass 128D is attached to upper surface 128C1 of case 128C so as to cover recess 128E.

図１９に示すように、ホルダ４６は、パッケージ１２８Ｂの周囲を囲む枠部４６０２と、枠部４６０２から突出し撮像部１２８Ａを前記光学系の光路に臨ませた状態で取付座１２０４Ｃに取着される取付板部４６０４と、枠部４６０２に設けられた接着剤充填用欠部４６０６とを有している。
枠部４６０２はパッケージ１２８Ｂの形状に対応して互いに対向する２組の辺部を有して矩形枠状に形成されている。２組の辺部は、パッケージ１２８Ｂの側面の外方に臨む下壁４６０８と、下壁４６０８の上部に接続されパッケージ１２８Ｂの上面の上方に延在する上壁４６１０とを有している。
上壁４６１０の下壁４６０８寄り箇所には、上方を向いた矩形枠状の上面４６１２が形成されている。
取付板部４６０４は前記２組の辺部のうちの一方の１組の辺部からそれぞれ突設され、取付板部４６０４にはねじ挿通孔４６１４が形成され、取付板部４６０４の両側と下壁４６０８とは補強リブ４６１６により連結されている。 As shown in FIG. 19, the holder 46 is attached to the mounting seat 1204 C with the frame portion 4602 surrounding the package 128 B and the imaging portion 128 A facing the optical path of the optical system protruding from the frame portion 4602. It has a mounting plate portion 4604 and an adhesive filling notch portion 4606 provided in the frame portion 4602.
The frame portion 4602 is formed in a rectangular frame shape having two sets of side portions facing each other corresponding to the shape of the package 128B. The two sets of side portions have a lower wall 4608 that faces the outside of the side surface of the package 128B, and an upper wall 4610 that is connected to the upper portion of the lower wall 4608 and extends above the upper surface of the package 128B.
A rectangular frame-like upper surface 4612 facing upward is formed near the lower wall 4608 of the upper wall 4610.
The mounting plate portion 4604 protrudes from one of the two sets of side portions, and a screw insertion hole 4614 is formed in the mounting plate portion 4604. Both sides and the lower wall of the mounting plate portion 4604 are formed. 4608 is connected by a reinforcing rib 4616.

接着剤充填用欠部４６０６は前記２組の辺部のうちの他方の１組の辺部の下壁４６０８にそれぞれ設けられている。
接着剤充填用欠部４６０６は、パッケージ１２８Ｂの側面１２８Ｃ２の延在方向に延在するように横長に形成されている。
本実施例では、接着剤充填用欠部４６０６は下壁４６０８の下端に開放状に形成され、パッケージ１２８Ｂの側面１２８Ｃ２の延在方向に間隔をおいて３つ設けられている。
また、本実施例では、接着剤充填用欠部４６０６のパッケージ１２８Ｂの側面１２８Ｃ２の延在方向における寸法は、下壁４６０８の下端から離れるにつれて次第に大きくなるように形成されている。すなわち、互いに対向して接着剤充填用欠部４６０６を構成する一対の縁部４６０４Ａの間は、下壁４６０８の下端から離れるにつれて次第に大きくなる寸法で形成され、一対の縁部１６０４Ａは傾斜している。 The adhesive filling notch 4606 is provided on the lower wall 4608 of the other side of the two sets of sides.
The adhesive filling notch 4606 is formed in a horizontally long shape so as to extend in the extending direction of the side surface 128C2 of the package 128B.
In this embodiment, the adhesive filling notch portion 4606 is formed in an open shape at the lower end of the lower wall 4608, and three are provided at intervals in the extending direction of the side surface 128C2 of the package 128B.
Further, in this embodiment, the dimension in the extending direction of the side surface 128C2 of the package 128B of the adhesive filling missing portion 4606 is formed so as to gradually increase as the distance from the lower end of the lower wall 4608 increases. That is, between the pair of edge portions 4604A that constitute the adhesive filling notch portion 4606 so as to face each other, a size that gradually increases as the distance from the lower end of the lower wall 4608 increases, and the pair of edge portions 1604A incline. Yes.

枠部４６０２の前記２組の辺部の上壁４６１０の内側でパッケージ１２８Ｂの上面周囲に枠状のシールゴム５６が配設され、シールゴム５６の内側に撮像部１２８Ａに臨む空間５７が形成されている。
この空間５７を閉塞するようにシールゴム５６の上端に枠状の遮光シート５８を介して板状のフィルタ６０が配設されている。本実施例ではフィルタ６０はローパスフィルタによって構成されている。
フィルタ６０は、上壁４６１０に取着された押え部材６２により遮光シート５８を介してシールゴム５６の上端を押さえ付けるように配設されており、シールゴム５６はフィルタ６０により圧縮されている。押え部材６２は、該押え部材６２の係合溝６２０２に上壁４６１０の係合爪４６１１が係合することでホルダ４６に取着されている。
したがって空間５７はシールゴム５６、遮光シート５８、フィルタ６０などにより閉塞され、塵埃などの侵入が防止されている。 A frame-like seal rubber 56 is disposed around the upper surface of the package 128B inside the upper wall 4610 of the two sets of side portions of the frame portion 4602, and a space 57 facing the imaging unit 128A is formed inside the seal rubber 56. .
A plate-shaped filter 60 is disposed on the upper end of the seal rubber 56 via a frame-shaped light shielding sheet 58 so as to close the space 57. In this embodiment, the filter 60 is constituted by a low-pass filter.
The filter 60 is disposed so as to press the upper end of the seal rubber 56 through the light shielding sheet 58 by the pressing member 62 attached to the upper wall 4610, and the seal rubber 56 is compressed by the filter 60. The pressing member 62 is attached to the holder 46 by engaging the engaging claw 4611 of the upper wall 4610 with the engaging groove 6202 of the pressing member 62.
Accordingly, the space 57 is closed by the seal rubber 56, the light shielding sheet 58, the filter 60, and the like, and dust and the like are prevented from entering.

次に、撮像素子ユニット５４の組立について説明する。
まず、不図示の組立治具などを用いて撮像素子１２８をホルダ４６に対して位置決めする。
すなわち、例えば、撮像素子１２８とホルダ４６とを不図示の組立治具に取付け、撮像素子１２８のパッケージ１２８Ｂの４つの側面１２８Ｃ２に対してホルダ４６の下壁４６０８を平行させつつパッケージ１２８Ｂの上面の上方にホルダ４６を位置させる。
この状態で、ホルダ４６の取付板部４６０４を基準として撮像素子１２８の位置、すなわちパッケージ１２８Ｂの位置を調整する。具体的には、撮像素子ユニット５４が撮像素子用取付部１２０５に取付けられたときに、撮像部１２８Ａの受光面の中心が前記光学系の光軸と一致し、かつ、該光軸と直交するように撮像素子１２８の位置調整がなされる。このような位置調整は、所定のテストチャート（テストパターン）を撮像素子１２８で撮像させ、該撮像素子１２８から得られた撮像信号に基づいて生成された画像データに基づいて行なうことができる。
前記位置調整が完了したならば、図２１に示すように、位置調整がなされた撮像素子１２８とホルダ４６とを反転させる。
そして、ホルダ４６の各接着剤充填用欠部４６０６に接着剤塗布用のシリンジなどによってＵＶ硬化型接着剤Ｓが充填される。
この際、各接着剤充填用欠部４６０６は、下壁４６０８の下端に開放状に形成されており、反転させることにより各接着剤充填用欠部４６０６は上方に開放状となることから、ＵＶ硬化型接着剤Ｓの充填が容易かつ確実になされる。そして、ＵＶ硬化型接着剤Ｓはパッケージ１２８Ｂの側面１２８Ｃ２と各接着剤充填用欠部４６０６との間、および、側面１２８Ｃ２と各接着剤充填用欠部４６０６の周囲の下壁４６０８内面との間に保持された状態となる。
次いで、各接着剤充填用欠部４６０６に充填されたＵＶ硬化型接着剤Ｓに対して紫外線を照射し硬化させる。この際、各接着剤充填用欠部４６０６は、ホルダ４６の下壁４６０８の外側に露出していること、また、図２１に示すように、パッケージ１２８Ｂの側面１２８Ｃ２とホルダ４６の下壁４６０８との間は上方に開放状に形成されていることから、充填されたＵＶ硬化型接着剤Ｓに対する紫外線の照射が容易かつ確実になされる。
これにより、撮像素子１２８とホルダ４６は位置決めされた状態で接着される。 Next, assembly of the image sensor unit 54 will be described.
First, the image sensor 128 is positioned with respect to the holder 46 using an unillustrated assembly jig or the like.
That is, for example, the image pickup device 128 and the holder 46 are attached to an assembly jig (not shown), and the lower wall 4608 of the holder 46 is parallel to the four side surfaces 128C2 of the package 128B of the image pickup device 128. The holder 46 is positioned above.
In this state, the position of the image sensor 128, that is, the position of the package 128B is adjusted with reference to the mounting plate portion 4604 of the holder 46. Specifically, when the image pickup device unit 54 is attached to the image pickup device attachment portion 1205, the center of the light receiving surface of the image pickup portion 128A coincides with the optical axis of the optical system and is orthogonal to the optical axis. As described above, the position of the image sensor 128 is adjusted. Such position adjustment can be performed based on image data generated based on an imaging signal obtained by imaging a predetermined test chart (test pattern) with the imaging element 128 and obtained from the imaging element 128.
When the position adjustment is completed, as shown in FIG. 21, the image sensor 128 and the holder 46 that have undergone the position adjustment are reversed.
Then, each adhesive filling notch 4606 of the holder 46 is filled with the UV curable adhesive S by an adhesive application syringe or the like.
At this time, each adhesive filling notch 4606 is formed in an open shape at the lower end of the lower wall 4608, and each adhesive filling notch 4606 is opened upward by inversion. Filling of the curable adhesive S can be easily and reliably performed. The UV curable adhesive S is between the side surface 128C2 of the package 128B and each adhesive filling notch 4606, and between the side surface 128C2 and the inner surface of the lower wall 4608 around each adhesive filling notch 4606. It will be in the state held by.
Next, the UV curable adhesive S filled in each adhesive filling notch 4606 is irradiated with ultraviolet rays and cured. At this time, each adhesive filling notch 4606 is exposed to the outside of the lower wall 4608 of the holder 46, and as shown in FIG. 21, the side surface 128C2 of the package 128B and the lower wall 4608 of the holder 46 Since the gap is formed in an open shape upward, the UV curable adhesive S filled can be easily and reliably irradiated with ultraviolet rays.
Thereby, the image sensor 128 and the holder 46 are bonded in a positioned state.

次に、このように撮像素子１２８が接着されたホルダ４６に対してシールゴム５６、遮光シート５７、フィルタ６０、押え部材６２を組付ける。
すなわち、図１９に示すように、ホルダ４６の枠部４６０２の前記２組の辺部の上壁４６１０の内側でパッケージ１２８Ｂの上面周囲に、枠状のシールゴム５６、シールゴム５６、遮光シート５８をこの順番で載置していき、次いで押え部材６２を上壁４６１０に取着する。
このようにして撮像素子ユニット５４が組み立てられる。 Next, the seal rubber 56, the light shielding sheet 57, the filter 60, and the pressing member 62 are assembled to the holder 46 to which the image sensor 128 is bonded in this way.
That is, as shown in FIG. 19, the frame-shaped seal rubber 56, the seal rubber 56, and the light shielding sheet 58 are placed around the upper surface of the package 128B inside the upper wall 4610 of the two sides of the frame portion 4602 of the holder 46. The presser members 62 are then attached to the upper wall 4610.
In this way, the image sensor unit 54 is assembled.

鏡筒１２の撮像素子用取付部１２０５に対する撮像素子ユニット５４の取付は、鏡筒１２の開口１２０４Ｂにホルダ４６の上壁４６１０部分を挿入し、鏡筒１２の取付座１２０４Ｃに撮像素子ユニット５４の取付板部４６０４を当接させ、ねじ挿通孔４６１４に挿通したねじを取り付け座１２０４のねじ孔に螺合し締結することによってなされる。
なお、撮像素子用取付部１２０５と撮像素子ユニット５４とには、例えば、ノックピンと、該ノックピンが挿入される位置決め孔などの従来公知の位置決め手段が設けられており、鏡筒１２の開口１２０４Ｂにホルダ４６の上壁４６１０部分を挿入し、鏡筒１２の取付座１２０４Ｃに撮像素子ユニット５４の取付板部４６０４を当接させた状態で位置決めされるように構成されている。 The image sensor unit 54 is attached to the image sensor attachment portion 1205 of the lens barrel 12 by inserting the upper wall 4610 portion of the holder 46 into the opening 1204B of the lens barrel 12, and the image sensor unit 54 is attached to the attachment seat 1204C of the lens barrel 12. The mounting plate portion 4604 is brought into contact, and the screw inserted into the screw insertion hole 4614 is screwed into the screw hole of the mounting seat 1204 and fastened.
The image sensor mounting portion 1205 and the image sensor unit 54 are provided with a known positioning means such as a knock pin and a positioning hole into which the knock pin is inserted, and is provided in the opening 1204B of the lens barrel 12. The upper wall 4610 portion of the holder 46 is inserted, and the holder 46 is positioned in a state where the mounting plate portion 4604 of the imaging element unit 54 is in contact with the mounting seat 1204C of the lens barrel 12.

以上説明したように本実施例によれば、ホルダ４６は、パッケージ１２８Ｂの周囲を囲む枠部４６０２と、枠部４６０２から突出し撮像部１２８Ａを前記光学系の光路に臨ませた状態で取付座１２０４Ｃに取着される取付板部４６０４と、枠部４６０２に設けられた接着剤充填用欠部４６０６とを有し、撮像素子１２８とホルダ４６は接着剤充填用欠部４６０６に充填されたＵＶ硬化型接着剤Ｓによりパッケージ１２８Ｂの側面１２８Ｃ２とホルダ４６の枠部４６０２とが接着されることにより固定されて撮像素子ユニット５４が構成されている。
したがって、各接着剤充填用欠部４６０６にＵＶ硬化型接着剤Ｓを充填する作業、および、各接着剤充填用欠部４６０６に充填されたＵＶ硬化型接着剤Ｓに対して紫外線を照射する作業を容易かつ確実に行なうことができ、組立作業性を向上させる上で有利となる。
特に、近年の撮像装置の小型化に伴ってレンズ鏡筒や撮像素子が小型化された場合であっても、ＵＶ硬化型接着剤Ｓの充填作業、および、ＵＶ硬化型接着剤Ｓへの紫外線の照射作業を容易かつ確実に行なうことができ、組立作業性を向上させる上で有利となる。
また、鏡筒１２の撮像素子用取付部１２０５に対して撮像素子ユニット５４が着脱可能に取着されるので、鏡筒１２と撮像素子ユニット５４を容易に組立および分解することができ、鏡筒１２および撮像素子１２８の一方に不具合があった場合に他方を再利用することができる。
また、本実施例では、接着剤充填用欠部４６０６は下壁４６０８の下端に開放状に形成されているので、ＵＶ硬化型接着剤Ｓの充填や該充填されたＵＶ硬化型接着剤Ｓに対する紫外線の照射を容易かつ確実に行なう上でより有利である。
また、本実施例では、ホルダ４６の接着剤充填用欠部４６０６のパッケージ１２８Ｂの側面１２８Ｃ２の延在方向における寸法は、下壁４６０８の下端から離れるにつれて次第に大きくなるように形成されているため、例えば、シールゴム５６が圧縮されることによって生じる力がシールガラス１２８Ｄを介してパッケージ１２８Ｂに作用した場合、すなわち、ホルダ４６からパッケージ１２８Ｂを離す方向に力が作用しても、硬化したＵＶ硬化型接着剤Ｓが傾斜した縁部４６０４Ａに当たることで、その力に対して充分に対抗することができる。 As described above, according to the present embodiment, the holder 46 includes the frame portion 4602 that surrounds the package 128B, and the mounting seat 1204C that protrudes from the frame portion 4602 so that the imaging unit 128A faces the optical path of the optical system. A mounting plate portion 4604 attached to the frame portion 4602 and an adhesive filling notch portion 4606 provided in the frame portion 4602, and the image pickup device 128 and the holder 46 are UV cured filled in the adhesive filling notch portion 4606. The side surface 128C2 of the package 128B and the frame portion 4602 of the holder 46 are bonded and fixed by the mold adhesive S to constitute the imaging element unit 54.
Accordingly, an operation for filling each adhesive filling notch 4606 with the UV curable adhesive S and an operation for irradiating the UV curable adhesive S filled in each adhesive filling notch 4606 with ultraviolet rays. Can be easily and reliably performed, which is advantageous in improving the assembly workability.
In particular, even when the lens barrel and the imaging element are miniaturized with the recent miniaturization of the imaging apparatus, the filling operation of the UV curable adhesive S and the ultraviolet rays to the UV curable adhesive S are performed. Therefore, it is advantageous to improve the assembly workability.
In addition, since the image sensor unit 54 is detachably attached to the image sensor attachment portion 1205 of the lens barrel 12, the lens barrel 12 and the image sensor unit 54 can be easily assembled and disassembled. When one of the 12 and the image sensor 128 is defective, the other can be reused.
Further, in this embodiment, the adhesive filling notch 4606 is formed in an open shape at the lower end of the lower wall 4608, so that the UV curable adhesive S can be filled with the filled UV curable adhesive S. This is more advantageous for easy and reliable irradiation of ultraviolet rays.
Further, in this embodiment, the dimension in the extending direction of the side surface 128C2 of the package 128B of the adhesive filling notch portion 4606 of the holder 46 is formed so as to gradually increase as the distance from the lower end of the lower wall 4608 increases. For example, when a force generated by compressing the seal rubber 56 is applied to the package 128B via the seal glass 128D, that is, even if a force is applied in a direction in which the package 128B is separated from the holder 46, the cured UV curable adhesive is used. When the agent S hits the inclined edge 4604A, the force can be sufficiently countered.

次に接着剤充填用欠部４６０４の変形例について説明する。
図２２では、接着剤充填用欠部４６０４′が、ホルダ４６の下壁４６０８の下端に開放状に形成され、接着剤充填用欠部４６０４′の対向する一対の縁部４６０４Ａの間は、上下方向にわたり均一の幅で形成されている。
図２３では、接着剤充填用欠部４６０４″が、ホルダ４６の下壁４６０８にパッケージ１２８Ｂの側面１２８Ｃ２の延在方向に延在する矩形の長孔状に形成されている。
これらの接着剤充填用欠部４６０４′、接着剤充填用欠部４６０４″を有する撮像素子ユニット５４においても、ＵＶ硬化型接着剤Ｓの充填作業、および、ＵＶ硬化型接着剤Ｓへの紫外線の照射作業を容易かつ確実に行なうことができ、組立作業性を向上させる上で有利となることは実施例１と同様である。 Next, a modification of the adhesive filling notch 4604 will be described.
In FIG. 22, an adhesive filling notch 4604 ′ is formed in an open shape at the lower end of the lower wall 4608 of the holder 46, and a pair of edges 4604 A of the adhesive filling notch 4604 ′ It is formed with a uniform width over the direction.
In FIG. 23, the adhesive filling notch 4604 ″ is formed in a rectangular long hole extending in the extending direction of the side surface 128C2 of the package 128B on the lower wall 4608 of the holder 46.
Also in the imaging element unit 54 having the adhesive filling notch 4604 ′ and adhesive filling notch 4604 ″, the UV curable adhesive S is filled and the UV curable adhesive S is irradiated with ultraviolet rays. As in the first embodiment, the irradiation operation can be performed easily and reliably and is advantageous in improving the assembly workability.

なお、本実施例においては、撮像装置としてデジタルスチルカメラを例示したが、本発明はビデオカメラやテレビカメラなど撮像装置に無論適用可能である。 In the present embodiment, a digital still camera is exemplified as the imaging device, but the present invention can of course be applied to an imaging device such as a video camera or a television camera.

実施例１の撮像装置を前方から見た斜視図である。It is the perspective view which looked at the imaging device of Example 1 from the front. 実施例１の撮像装置を後方から見た斜視図である。It is the perspective view which looked at the imaging device of Example 1 from back. 実施例１の撮像装置を下方から見た斜視図である。It is the perspective view which looked at the imaging device of Example 1 from the lower part. メモリカードおよびバッテリーの収容状態を説明する説明図である。It is explanatory drawing explaining the accommodation state of a memory card and a battery. 撮像装置の制御系を示すブロック図である。It is a block diagram which shows the control system of an imaging device. レンズ鏡筒１０を斜め前方から見た斜視図である。It is the perspective view which looked at the lens-barrel 10 from diagonally forward. レンズ鏡筒１０を斜め後方から見た斜視図である。It is the perspective view which looked at the lens-barrel 10 from diagonally backward. レンズ鏡筒１０の一部の構成を示す分解斜視図である。2 is an exploded perspective view showing a configuration of a part of the lens barrel 10. FIG. レンズ鏡筒１０の残りの構成を示す分解斜視図である。2 is an exploded perspective view showing the remaining configuration of the lens barrel 10. FIG. 図６のＸＸ線断面図である。It is XX sectional drawing of FIG. 図６のＹＹ線断面図である。It is the YY sectional view taken on the line of FIG. レンズ鏡筒１０の左側部分の断面斜視図である。2 is a cross-sectional perspective view of a left portion of the lens barrel 10. FIG. レンズ鏡筒１０の右側部分の断面斜視図である。2 is a cross-sectional perspective view of a right side portion of the lens barrel 10. FIG. 第１鏡筒分割体１２０２の横断面図である。FIG. 6 is a cross-sectional view of the first lens barrel divided body 1202. 第２鏡筒分割体１２０４の横断面図である。It is a cross-sectional view of the second barrel segment 1204. ズーム用可動レンズ群１８、フォーカス用可動レンズ群２０の斜視図である。3 is a perspective view of a zoom movable lens group 18 and a focus movable lens group 20. FIG. 第２鏡筒分割体１２０４の要部の断面斜視図である。FIG. 10 is a cross-sectional perspective view of a main part of a second barrel segment 1204. 第１鏡筒分割体１２０２、第２鏡筒分割体１２０４、第３鏡筒分割体１２０６の断面図である。FIG. 5 is a cross-sectional view of a first barrel segment 1202, a second barrel segment 1204, and a third barrel segment 1206. 撮像素子１２８の取付構造を示す分解斜視図である。3 is an exploded perspective view showing a mounting structure of an image sensor 128. FIG. 図１９のＸＸ線断面図である。It is XX sectional drawing of FIG. ホルダ４６に取着された撮像素子を斜め下方から見た状態を示す斜視図である。FIG. 6 is a perspective view showing a state in which the image sensor attached to the holder 46 is viewed obliquely from below. 接着剤充填用欠部４６０４の変形例を示す斜視図である。It is a perspective view which shows the modification of the missing part 4604 for adhesive filling. 接着剤充填用欠部４６０４の他の変形例を示す斜視図である。It is a perspective view which shows the other modification of the missing part 4604 for adhesive filling.

Explanation of symbols

１００……撮像装置、１２８……撮像素子、１０……レンズ鏡筒、１２……鏡筒、１２０４Ｂ……開口、１２０４Ｃ……取付座、１２０５……撮像素子用取付部、１２８Ａ……撮像部、１２８Ｂ……パッケージ、４６……ホルダ、４６０２……枠部、４６０４……取付板部、４６０６……接着剤充填用欠部、Ｓ……接着剤。
DESCRIPTION OF SYMBOLS 100 ... Imaging device, 128 ... Imaging element, 10 ... Lens barrel, 12 ... Lens barrel, 1204B ... Aperture, 1204C ... Mounting seat, 1205 ... Imaging element mounting part, 128A ... Imaging part , 128B ... package, 46 ... holder, 4602 ... frame portion, 4604 ... mounting plate portion, 4606 ... notch for filling adhesive, S ... adhesive.

Claims

An optical system provided inside the lens tube for guiding the subject image;
A lens barrel having an image sensor provided on the optical path of the optical system inside the barrel;
The lens barrel is provided with an image sensor mounting portion that includes an opening for allowing the image sensor to face the optical path and a mounting seat provided around the aperture,
A holder for holding the imaging element is provided;
The imaging device includes an imaging unit and a package in which the imaging unit is accommodated,
The holder is provided on the frame, a frame that surrounds the periphery of the package, a mounting plate that protrudes from the frame and is attached to the mounting seat in a state where the imaging unit faces the optical path, and the frame And an adhesive filling notch
The image pickup device and the holder are fixed by bonding the wall portion and the frame portion constituting the periphery of the package with an adhesive filled in the missing portion for filling the adhesive to form an image pickup device unit,
The imaging element unit is disposed in the lens barrel by attaching the mounting plate portion to the mounting seat so that the imaging unit faces the opening.
A lens device.

The package has a rectangular plate shape, the frame portion has two sets of side portions facing each other corresponding to the shape of the package, and has a rectangular frame shape, and the mounting plate portion has the two sets of side portions. The adhesive filling notches are respectively provided on the other set of sides of the two sets of sides. The lens device according to claim 1.

The package has a rectangular plate shape, the imaging unit is disposed so as to face an upper surface of the package, and the frame has a rectangular shape having two sets of sides facing each other corresponding to the shape of the package. The two sets of side portions are formed in a frame shape and have a lower wall facing outward of the side surface of the package and an upper wall connected to the upper portion of the lower wall and extending above the upper surface of the package. The mounting plate portion protrudes from one of the two sets of side portions, and the adhesive filling notch portion is the other set of the two sets of side portions. The lens device according to claim 1, wherein the lens device is provided on a lower wall of each of the side portions.

The lens device according to claim 1, wherein the adhesive filling notch is formed in a horizontally long shape so as to extend in an extending direction of a side surface of the package.

2. The lens device according to claim 1, wherein the adhesive filling notch is formed in a long hole shape extending in an extending direction of a side surface of the package.

The lens device according to claim 3, wherein the adhesive filling notch is formed open at the lower end of the lower wall.

The adhesive filling notch is formed in an open shape at the lower end of the lower wall, and the dimension of the adhesive filling notch in the extending direction of the side surface of the package gradually increases as the distance from the lower end of the lower wall increases. The lens device according to claim 3, wherein the lens device is formed as follows.

The package has a rectangular plate shape, the imaging unit is disposed so as to face an upper surface of the package, and the frame has a rectangular shape having two sets of sides facing each other corresponding to the shape of the package. The two sets of side portions are formed in a frame shape and have a lower wall facing outward of the side surface of the package and an upper wall connected to the upper portion of the lower wall and extending above the upper surface of the package. A frame-like seal rubber is disposed around the upper surface of the package inside the upper walls of the two sets of side portions, and a space facing the imaging unit is formed inside the seal rubber so as to close the space. The lens device according to claim 1, wherein a plate-like filter is disposed on an upper end of the seal rubber.

2. The lens device according to claim 1, wherein the filter is disposed so as to press an upper end of a seal rubber by a pressing member attached to the upper wall, and the seal rubber is compressed by the filter. .

An optical system provided inside the lens tube for guiding the subject image;
An imaging device having an imaging element provided on an optical path of the optical system inside the lens barrel,
The lens barrel is provided with an image sensor mounting portion that includes an opening for allowing the image sensor to face the optical path and a mounting seat provided around the aperture,
A holder for holding the imaging element is provided;
The imaging device includes an imaging unit and a package in which the imaging unit is accommodated,
The holder is provided on the frame, a frame that surrounds the periphery of the package, a mounting plate that protrudes from the frame and is attached to the mounting seat in a state where the imaging unit faces the optical path, and the frame And an adhesive filling notch
The image pickup device and the holder are fixed by bonding the wall portion and the frame portion constituting the periphery of the package with an adhesive filled in the missing portion for filling the adhesive to form an image pickup device unit,
The imaging element unit is disposed in the lens barrel by attaching the mounting plate portion to the mounting seat so that the imaging unit faces the opening.
An imaging apparatus characterized by that.