JP2008216707A - Lens assembly and photographing device - Google Patents

Lens assembly and photographing device Download PDF

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JP2008216707A
JP2008216707A JP2007055075A JP2007055075A JP2008216707A JP 2008216707 A JP2008216707 A JP 2008216707A JP 2007055075 A JP2007055075 A JP 2007055075A JP 2007055075 A JP2007055075 A JP 2007055075A JP 2008216707 A JP2008216707 A JP 2008216707A
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holder
lens
lens frame
sensor
male screw
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善幸 ▲高▼瀬
Yoshiyuki Takase
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Fujinon Corp
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Fujinon Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens assembly capable of preventing dust produced due to sliding of screw parts during focus adjustment after assembly from infiltrating into a sensor side even when the screw parts screwing each other are provided both on a lens frame and a holder respectively, and to provide a photographing device equipped with the lens assembly. <P>SOLUTION: The lens frame 11 is inserted from an opening on the end face on the sensor 12 side of the holder 10. By making the outside shape of a portion on an emitting side larger than the outside shape of the male screw part 111 of the lens frame 11, the dust is prevented from infiltrating into the sensor 12 side even when the dust is produced due to the sliding of the screw parts in the midst of performing the focus adjustment by screwing and advancing the lens frame 11 or screwing and retracting the lens frame 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、センサ上に被写体光を結像する撮像レンズが内部に組み込まれるレンズ組立体およびそのレンズ組立体を備えた撮影装置に関する。   The present invention relates to a lens assembly in which an imaging lens that forms an image of subject light on a sensor is incorporated, and an imaging apparatus including the lens assembly.

従来より、撮像素子等のセンサに被写体光を結像させるための撮像レンズが内部に組み込まれたレンズ組立体が知られている。このようなレンズ組立体の中には、レンズ枠とホルダとに、それぞれ、精密に螺合する雄ネジと雌ネジとを設けてホルダとレンズ枠との係合部の構造を簡素化して小型化を図るとともに、レンズ枠をホルダに螺入していくことによって光軸あわせを簡単に行なうことができるようにしたものがある。このようなレンズ組立体においては超小型化を図ることが可能なので益々の小型薄型化が図られている携帯機器への搭載が期待されるとともに、精密ネジの螺合によりホルダに防塵構造を持たせることができるので車外に設置される車載用カメラなどへの応用が期待される。   2. Description of the Related Art Conventionally, a lens assembly in which an imaging lens for imaging subject light on a sensor such as an imaging element is incorporated is known. In such a lens assembly, the lens frame and the holder are each provided with a male screw and a female screw that are precisely screwed, thereby simplifying the structure of the engaging portion between the holder and the lens frame. In addition, there is one that can easily adjust the optical axis by screwing a lens frame into a holder. Since such a lens assembly can be miniaturized, it is expected to be mounted on a portable device that is becoming increasingly smaller and thinner, and the holder has a dust-proof structure by screwing a precision screw. Therefore, application to in-vehicle cameras installed outside the vehicle is expected.

図１は、そのレンズ組立体の構成を示す図である。   FIG. 1 is a diagram showing the configuration of the lens assembly.

図１に示すレンズ組立体２は、ホルダ２０と、撮像レンズ２１０が内蔵されたレンズ枠２１とそのレンズ枠２１内の撮像レンズ２１０で捉えた被写体光を結像させる撮像素子２２Ａとが備えられている。その撮像素子２２Ａの上方には撮像素子２２Ａを保護するためのカバーガラス２２Ｂが配備されている。レンズ枠２１には雄ネジ部２１１が設けられ、ホルダ２０にはその雄ネジ部２１１に螺合する雌ネジ部２０１が設けられている。この例では、カバーガラス２２Ｂが撮像素子２２Ａとともにもう一つのホルダ２２Ｃに保持される構成になっているので、もう一つのホルダ２２Ｃとそのホルダ２２Ｃに保持されるカバーガラス２２Ｂを、センサを構成する部材として捉えて撮像素子２２Ａとカバーガラス２２Ｂとホルダ２２Ｃとを含めてセンサ２２ということにする。   The lens assembly 2 shown in FIG. 1 includes a holder 20, a lens frame 21 in which an imaging lens 210 is built, and an imaging element 22A that forms an image of subject light captured by the imaging lens 210 in the lens frame 21. ing. A cover glass 22B for protecting the image sensor 22A is provided above the image sensor 22A. The lens frame 21 is provided with a male screw portion 211, and the holder 20 is provided with a female screw portion 201 that is screwed into the male screw portion 211. In this example, since the cover glass 22B is configured to be held by another holder 22C together with the image sensor 22A, the other holder 22C and the cover glass 22B held by the holder 22C constitute a sensor. The sensor 22 includes the image sensor 22A, the cover glass 22B, and the holder 22C.

このような構成を持つレンズ組立体２が組み立られるときには、まずセンサ２２がホルダ２０の後端面を塞ぐようにして組み込まれた後、ホルダ２０の前端面つまりセンサ２２がある側とは反対の側からレンズ枠２１が螺入され、レンズ枠２１の雄ネジ部２１１がホルダ２０の雌ネジ部２０１にねじ込まれていくことによってレンズ組立体２の組立が簡単に行なわれる。   When the lens assembly 2 having such a configuration is assembled, the sensor 22 is first assembled so as to block the rear end surface of the holder 20, and then the front end surface of the holder 20, that is, the side opposite to the side where the sensor 22 is present. Then, the lens frame 21 is screwed in, and the male screw portion 211 of the lens frame 21 is screwed into the female screw portion 201 of the holder 20, whereby the lens assembly 2 is easily assembled.

さらに、組立が終了した後においてはレンズ枠２１を光軸方向に螺進又は螺退させることにより焦点調節が簡単かつ精度良く行なわれる。   Furthermore, after the assembly is completed, the lens frame 21 is screwed or screwed in the direction of the optical axis so that the focus adjustment is performed easily and accurately.

しかしながら、上記構成であると、レンズ枠２１を光軸に対して螺進、螺退させることにより焦点調整を行なっている最中に雄ネジ部２１１と雌ネジ部２０１との摺動によりゴミが発生し発生したゴミがセンサ２２側に落ちてしまうことがある。センサ２２側に落ちてセンサ２２を構成するカバーガラス２２Ｂにコミが付着すると、ゴミが遮光部材となって働いてしまってセンサ２２を構成する撮像素子２２Ａに結像させた画像に悪影響が及ぼされてしまう。   However, in the above configuration, dust is generated by sliding between the male screw portion 211 and the female screw portion 201 during the focus adjustment by screwing the lens frame 21 back and forth with respect to the optical axis. The generated dust may fall to the sensor 22 side. When dust falls to the sensor 22 side and adheres to the cover glass 22B constituting the sensor 22, dust acts as a light shielding member, which adversely affects the image formed on the image sensor 22A constituting the sensor 22. End up.

特許文献１には、ホルダの外周にネジを設けることにより、ホルダ内部へのゴミの侵入を阻止する技術が提案されているが、その技術を適用するとホルダが大型化してしまう。
特開２００６−３３８０２６号公報 Patent Document 1 proposes a technique for preventing the entry of dust into the holder by providing a screw on the outer periphery of the holder. However, when this technique is applied, the holder becomes large.
JP 2006-338026 A

本発明は、上記問題点を解決し、レンズ枠の外周面とホルダの内周面に螺合するネジ部をそれぞれ設けたとしても、組立後の焦点調整においてネジ部の摺動により発生するゴミがセンサ側に入り込むことのない小型のレンズ組立体、およびそのレンズ組立体を備えた撮影装置を提供することを目的とするものである。   The present invention solves the above-described problems, and even if a screw part that is screwed to the outer peripheral surface of the lens frame and the inner peripheral surface of the holder is provided, dust generated due to sliding of the screw part during focus adjustment after assembly. It is an object of the present invention to provide a small lens assembly that does not enter the sensor side, and a photographing apparatus including the lens assembly.

上記目的を達成する本発明のレンズ組立体は、前端面と後端面に開口を有し、これら両開口をつなぐ貫通した中空を有するホルダと、
上記後端面の開口を塞いで配置され上記前端面の開口を通って入射してきた被写体光を受光して画像信号を生成するセンサと、
被写体光を上記センサ上に結像する撮像レンズと、
上記撮像レンズを取り巻いてその撮像レンズを保持するレンズ枠とを備え、
上記レンズ枠が、そのレンズ枠外周面に形成された、上記ホルダの中空内壁にネジ込まれる雄ネジ部と、そのレンズ枠外周面の、上記雄ネジ部よりも出射側に形成された、上記ホルダの中空内壁に接触又は近接する円筒外壁部とを有し、
上記ホルダが、上記内壁に、上記雄ネジ部がネジ込まれる雌ネジ部と、上記円筒外壁部と接触又は近接する円筒内壁部とを有することを特徴とする。 The lens assembly of the present invention that achieves the above object has an opening on the front end surface and the rear end surface, and a holder having a hollow that penetrates both the openings,
A sensor that closes the opening of the rear end face and that receives the subject light incident through the opening of the front end face and generates an image signal;
An imaging lens that forms an image of subject light on the sensor;
A lens frame surrounding the imaging lens and holding the imaging lens;
The lens frame is formed on the outer peripheral surface of the lens frame, and is formed on the light exit side of the outer peripheral surface of the lens frame and the male screw portion screwed into the hollow inner wall of the holder. A cylindrical outer wall portion in contact with or close to the hollow inner wall of the holder,
The holder has a female screw part into which the male screw part is screwed into the inner wall, and a cylindrical inner wall part that is in contact with or close to the cylindrical outer wall part.

上記本発明のレンズ組立体によれば、上記レンズ枠が、上記ホルダの雌ネジ部に螺合する雄ネジ部を備えるとともに、その雄ネジ部よりも出射側に形成された、上記ホルダの中空内壁に接触又は近接する円筒外壁部を備えることになる。   According to the lens assembly of the present invention, the lens frame includes a male screw part that is screwed into the female screw part of the holder, and the hollow of the holder is formed on the emission side from the male screw part. A cylindrical outer wall portion in contact with or close to the inner wall is provided.

上記レンズ枠の円筒外壁部が、上記ホルダの中空内壁に接触又は近接する構成であると、円筒外壁部と中空内壁とでセンサ側へのゴミの進入経路を断つか又は極細にすることができ、たとえ雄ネジ部を雌ネジ部に螺合させレンズ枠をセンサに対して進退させることにより焦点調節を行ったとしても、雄ネジと雌ネジとの摺動により発生したゴミがセンサ側に落ち難くなる。   When the cylindrical outer wall portion of the lens frame is in contact with or close to the hollow inner wall of the holder, the dust entrance path to the sensor side can be cut off or made extremely thin by the cylindrical outer wall portion and the hollow inner wall. Even if focus adjustment is performed by screwing the male screw part into the female screw part and moving the lens frame forward and backward with respect to the sensor, dust generated by sliding between the male screw and the female screw falls to the sensor side. It becomes difficult.

ここで、上記円筒外壁部が、上記雄ネジ部の溝底よりも太径に形成され、
上記ホルダは、上記レンズ枠を、上記センサ組立体に、上記後端面の開口から受け入れるものであることが好ましい。 Here, the cylindrical outer wall portion is formed with a larger diameter than the groove bottom of the male screw portion,
It is preferable that the holder is configured to receive the lens frame from the opening on the rear end surface into the sensor assembly.

上記構成であると、従来のようにホルダの前端面つまり被写体側からレンズ枠を装着してレンズ枠を螺進させていくことによりホルダに装着するのではなく、ホルダの後端面の開口つまりセンサ側からレンズ枠を挿入して螺進させていくことによりホルダに装着することになる。   With the above configuration, instead of attaching to the holder by attaching the lens frame from the front end surface of the holder, that is, the subject side and screwing the lens frame as in the conventional case, the opening or sensor on the rear end surface of the holder The lens frame is inserted from the side and screwed to attach to the holder.

こうして後端面の開口からレンズ枠を挿入する構成にすると、レンズ枠の雄ネジ部よりも出射側に形成された、上記円筒外壁部の径を、雄ネジ部の溝底よりも太径にすることができるので、ネジ部で発生したゴミをその円筒外壁部の、太径になっているところで受け止めることができ、センサ側にゴミが侵入することが完全に阻止される。   When the lens frame is inserted through the opening on the rear end surface in this way, the diameter of the cylindrical outer wall portion formed on the exit side of the male screw portion of the lens frame is made larger than the groove bottom of the male screw portion. Therefore, dust generated at the screw portion can be received where the cylindrical outer wall portion has a large diameter, and the dust is completely prevented from entering the sensor side.

また上記目的を達成する本発明の撮影装置は、本発明のレンズ組立体と撮像素子とを備えたことを特徴とする。   In addition, a photographing apparatus of the present invention that achieves the above object includes the lens assembly of the present invention and an image sensor.

そうすると、本発明の小型のレンズ組立体を撮影装置に組み込むことで撮影装置の小型化を図ることが可能となる。   If it does so, it will become possible to achieve size reduction of an imaging device by incorporating the small lens assembly of the present invention into an imaging device.

以上、説明したように、レンズ枠とホルダとの双方に螺合するネジ部をそれぞれ設けたとしても、組立後の焦点調整においてネジ部の摺動により発生するゴミがセンサ側に入り込むことのない小型のレンズ組立体およびそのレンズ組立体を備えた撮影装置が実現する。   As described above, even if a screw portion that is screwed to both the lens frame and the holder is provided, dust generated by sliding of the screw portion does not enter the sensor side during focus adjustment after assembly. A small lens assembly and a photographing apparatus including the lens assembly are realized.

以下図面を参照して本発明の実施の形態を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図２は、本発明のレンズ組立体１と撮像素子が組み込まれた撮影装置の一例であるカメラ付き携帯電話機３の外観を示す図である。図２に示すカメラ付き携帯電話機３のレンズ１１０のところに本発明のレンズ組立体が用いられている。   FIG. 2 is a view showing an appearance of a camera-equipped mobile phone 3 as an example of a photographing apparatus in which the lens assembly 1 of the present invention and an image sensor are incorporated. The lens assembly of the present invention is used at the lens 110 of the camera-equipped mobile phone 3 shown in FIG.

図３は本発明の一実施形態であるレンズ組立体１を示す図である。図４は、図３のレンズ組立体１の分解図であり、図５は、図４の分解図中のレンズ枠１０とホルダ１１とセンサ１２とを図４の左斜め前方から見た側面図である。   FIG. 3 is a view showing a lens assembly 1 according to an embodiment of the present invention. 4 is an exploded view of the lens assembly 1 of FIG. 3, and FIG. 5 is a side view of the lens frame 10, the holder 11, and the sensor 12 in the exploded view of FIG. It is.

図３〜図５を参照して構成を簡単に説明する。   The configuration will be briefly described with reference to FIGS.

図３に示すレンズ組立体１のホルダ１０内には４群構成のレンズ１１０が収容されている。この図３の例では従来と同様に小型化を達成するためと組立を簡便にするためとの双方の理由で、レンズ枠１１に雄ネジ部１１１を設けホルダ１０にその雄ネジ部１１１に螺合する雌ネジ部１０１を設けて、レンズ枠１１をホルダ１０にねじこむことによりレンズ組立体１を組み立ることができるようにしている。   A lens 110 having a four-group configuration is accommodated in the holder 10 of the lens assembly 1 shown in FIG. In the example of FIG. 3, a male screw portion 111 is provided on the lens frame 11 and screwed on the male screw portion 111 in the holder 10 for both the purpose of achieving downsizing and simplifying assembly. The mating female screw portion 101 is provided, and the lens assembly 1 can be assembled by screwing the lens frame 11 into the holder 10.

図４、図５に示す様に、ホルダ１０は、前端面１０Ａと後端面１０Ｂに開口を有し、これら両開口をつなぐ貫通した中空を有するものである。図４、図５に示す様に、そのホルダ１０の中空部に、４群構成のレンズを保持するレンズ枠１１がねじ込まれる。さらにそのホルダ１０とは反対の側には、ホルダ１２Ａが備えられており、そのもう一つのホルダ１２Ａの内部に前述したカバーガラス１２Ｂと撮像素子１２Ｃが保持されるようになっている。つまり、このホルダ１２Ａとカバーガラス１２Ｂと撮像素子１２Ｃとで本発明にいうセンサ１２の一例が構成される。   As shown in FIGS. 4 and 5, the holder 10 has openings in the front end face 10 </ b> A and the rear end face 10 </ b> B, and has a hollow that penetrates both openings. As shown in FIGS. 4 and 5, a lens frame 11 that holds lenses of a four-group configuration is screwed into the hollow portion of the holder 10. Further, a holder 12A is provided on the side opposite to the holder 10, and the above-described cover glass 12B and the image sensor 12C are held inside the other holder 12A. That is, the holder 12A, the cover glass 12B, and the image sensor 12C constitute an example of the sensor 12 according to the present invention.

このセンサ１２が、ホルダ１０の後端面の開口を塞いで配置され、ホルダ１０の前端面の開口を通って入射してきた被写体光がそのセンサ１２内の撮像素子１２Ｃにより受光され、その撮像素子１２Ｃで画像信号が生成される。   The sensor 12 is disposed so as to close the opening on the rear end surface of the holder 10, and subject light incident through the opening on the front end surface of the holder 10 is received by the image sensor 12 C in the sensor 12, and the image sensor 12 C Thus, an image signal is generated.

ここで、図４、図５を参照してレンズ組立体１の構成を詳細に説明する。   Here, the configuration of the lens assembly 1 will be described in detail with reference to FIGS.

図４、図５に示す様にレンズ組立体１には、センサ１２を構成する撮像素子１２Ｃ上に被写体光を結像する撮像レンズ１１０を取り巻いてその撮像レンズ１１０を保持するレンズ枠１１が備えられている。そのレンズ枠１１のレンズ枠外周面には、ホルダ１０の中空内壁にネジ込まれる雄ネジ部１１１が形成されており、そのレンズ枠外周面の、雄ネジ部１１１よりも出射側には、ホルダ１０の中空内壁に接触又は近接する円筒外壁部１１２が形成されている。   As shown in FIGS. 4 and 5, the lens assembly 1 includes a lens frame 11 that surrounds an imaging lens 110 that forms an image of subject light on an imaging device 12 </ b> C that constitutes the sensor 12 and holds the imaging lens 110. It has been. A male screw part 111 to be screwed into the hollow inner wall of the holder 10 is formed on the outer peripheral surface of the lens frame 11, and the holder is located closer to the emission side of the outer peripheral surface of the lens frame than the male screw part 111. A cylindrical outer wall portion 112 is formed in contact with or close to the ten hollow inner walls.

一方、ホルダ１０には、内壁に、上記雄ネジ部１１１がネジ込まれる雌ネジ部１０１が設けられており、また上記円筒外壁部１１２が接触又は近接する円筒内壁部１０２が設けられている。   On the other hand, the holder 10 is provided with a female screw portion 101 into which the male screw portion 111 is screwed, and a cylindrical inner wall portion 102 in contact with or close to the cylindrical outer wall portion 112.

上記レンズ枠１１の円筒外壁部１１２は、雄ネジ部１１１の溝底よりも太径に形成されており、ホルダ１０は、図４、図５に示す様にレンズ枠１１を、ホルダ１０の後端面の開口から受け入れるものである。   The cylindrical outer wall portion 112 of the lens frame 11 is formed to have a diameter larger than the groove bottom of the male screw portion 111, and the holder 10 is arranged so that the lens frame 11 is placed behind the holder 10 as shown in FIGS. It is received from the opening of the end face.

図６を参照して作用を分かり易く説明する。   The operation will be described in an easy-to-understand manner with reference to FIG.

図６は、図４のホルダ１０を左斜め上方から見た図と、その図を図中のＤ−Ｄ線で切断し切断した面を側方から見た図である。   FIG. 6 is a view of the holder 10 of FIG. 4 as viewed obliquely from the upper left, and a view of the cut surface taken along line DD in FIG. 4 as viewed from the side.

図６からも分かる様に、レンズ枠１１のレンズ枠外周面には、ホルダ１０の中空内壁にネジ込まれる雄ネジ部１１１が形成されており、そのレンズ枠外周面の、雄ネジ部１１１よりも出射側には、ホルダ１０の中空内壁１０２に接触又は近接する円筒外壁部１１２が設けられている。一方、ホルダ１０には、内壁に、上記雄ネジ部１１１がネジ込まれる雌ネジ部１０１が設けられており、また上記円筒外壁部１１２が接触又は近接する円筒内壁部１０２が設けられている。   As can be seen from FIG. 6, a male screw portion 111 to be screwed into the hollow inner wall of the holder 10 is formed on the outer peripheral surface of the lens frame 11, and from the male screw portion 111 on the outer peripheral surface of the lens frame. Also on the exit side, a cylindrical outer wall portion 112 that is in contact with or close to the hollow inner wall 102 of the holder 10 is provided. On the other hand, the holder 10 is provided with a female screw portion 101 into which the male screw portion 111 is screwed, and a cylindrical inner wall portion 102 in contact with or close to the cylindrical outer wall portion 112.

さらに、レンズ枠１１の円筒外壁部１１２は、雄ネジ部１１１の溝底よりも太径に形成されており、ホルダ１０は、レンズ枠１１をホルダ１０の後端面の開口から受け入れるものである。   Furthermore, the cylindrical outer wall portion 112 of the lens frame 11 is formed to have a larger diameter than the groove bottom of the male screw portion 111, and the holder 10 receives the lens frame 11 from the opening on the rear end surface of the holder 10.

つまり、従来においては、ホルダ１０の前端面側つまり被写体側からレンズ枠１１を挿入していたが、本発明においては、ホルダ１０の後端面側からレンズ枠１１を挿入するようにして、レンズ枠１１の円筒外壁部１１２の径を雄ネジ部１１１の溝底の径よりも大きくすることができるようにしている。   In other words, in the past, the lens frame 11 was inserted from the front end surface side of the holder 10, that is, from the subject side. However, in the present invention, the lens frame 11 is inserted from the rear end surface side of the holder 10. 11, the diameter of the cylindrical outer wall portion 112 can be made larger than the diameter of the groove bottom of the male screw portion 111.

このように雄ネジ部１１１の径よりも大きい円筒外壁部１１２を構成することができると、レンズ枠１１を螺進又は螺退させることにより焦点調節を行なっているときにネジ部の摺動によりゴミが発生したとしても、その円筒外壁部１１２のところでゴミを受け止めることができるようになり、レンズの出射側に位置するセンサ側へのゴミの侵入が防止される。   If the cylindrical outer wall portion 112 larger than the diameter of the male screw portion 111 can be configured in this way, the lens frame 11 is screwed or screwed to adjust the focus by sliding the screw portion. Even if dust is generated, dust can be received at the cylindrical outer wall portion 112, and entry of dust to the sensor side located on the exit side of the lens is prevented.

以上説明した様に、レンズ枠とホルダとの双方に螺合するネジ部をそれぞれ設けたとしても、組立後の焦点調整においてネジ部の摺動により発生するゴミがセンサ側に入り込むことのないレンズ組立体が実現する。   As described above, even if a screw part that is screwed to both the lens frame and the holder is provided, dust that is generated by sliding of the screw part in the focus adjustment after assembly does not enter the sensor side. Assembly is realized.

このようなレンズ組立体が実現すると、益々の小型薄型化が図られている携帯機器への搭載が可能となり、また精密ネジの螺合によりホルダ内への塵埃の侵入が防止される構造が実現されるので車載用レンズとしての応用等も期待される。   When such a lens assembly is realized, it can be mounted on portable devices that are becoming smaller and thinner, and a structure that prevents dust from entering the holder by screwing precision screws is realized. Therefore, application as an in-vehicle lens is also expected.

従来のレンズ組立体の構成を示す図である。It is a figure which shows the structure of the conventional lens assembly. 本発明のレンズ組立体１と撮像素子が組み込まれた撮影装置の一例であるカメラ付き携帯電話機３の外観を示す図である。It is a figure which shows the external appearance of the mobile telephone 3 with a camera which is an example of the imaging device incorporating the lens assembly 1 and image pick-up element of this invention. 本発明の一実施形態であるレンズ組立体の外観図である。It is an external view of the lens assembly which is one Embodiment of this invention. 図２のレンズ組立体の分解図である。FIG. 3 is an exploded view of the lens assembly of FIG. 2. 図３の分解図中のレンズ枠と第１のホルダと第２のホルダとを左下方から見た側面図である。It is the side view which looked at the lens frame, the 1st holder, and the 2nd holder in the exploded view of Drawing 3 from the lower left. 図３のホルダ１０を左斜め上方から見た図と、その図を図中のＤ−Ｄ線で切断し切断した面を側方から見た図である。It is the figure which looked at the holder 10 of FIG. 3 from diagonally upper left, and the figure which cut | disconnected the figure by the DD line | wire in a figure, and looked from the side.

符号の説明Explanation of symbols

１ レンズ組立体
１０ レンズホルダ
１０１ 雌ネジ部
１０２ 円筒内壁部
１１ レンズ枠
１１０ レンズ
１１１ 雄ネジ部
１１２ 円筒外壁部
１２ センサ
１２Ａ ホルダ
１２Ｂ カバーガラス
１２Ｃ 撮像素子 DESCRIPTION OF SYMBOLS 1 Lens assembly 10 Lens holder 101 Female thread part 102 Cylindrical inner wall part 11 Lens frame 110 Lens 111 Male thread part 112 Cylindrical outer wall part 12 Sensor 12A Holder 12B Cover glass 12C Image pick-up element

Claims (3)

前端面と後端面に開口を有し、これら両開口をつなぐ貫通した中空を有するホルダと、
前記後端面の開口を塞いで配置され前記前端面の開口を通って入射してきた被写体光を受光して画像信号を生成するセンサと、
被写体光を前記センサ上に結像する撮像レンズと、
前記撮像レンズを取り巻いて該撮像レンズを保持するレンズ枠とを備え、
前記レンズ枠が、該レンズ枠外周面に形成された、前記ホルダの中空内壁にネジ込まれる雄ネジ部と、該レンズ枠外周面の、前記雄ネジ部よりも出射側に形成された、前記ホルダの中空内壁に接触又は近接する円筒外壁部とを有し、
前記ホルダが、前記内壁に、前記雄ネジ部がネジ込まれる雌ネジ部と、前記円筒外壁部と接触又は近接する円筒内壁部とを有することを特徴とするレンズ組立体。 A holder having an opening in the front end face and the rear end face, and a hollow having a through hole connecting both the openings;
A sensor that closes the opening of the rear end surface and that receives subject light incident through the opening of the front end surface and generates an image signal;
An imaging lens for imaging subject light on the sensor;
A lens frame surrounding the imaging lens and holding the imaging lens;
The lens frame is formed on the outer peripheral surface of the lens frame, and is formed on the light exit side of the outer peripheral surface of the lens frame and the male screw portion to be screwed into the hollow inner wall of the holder. A cylindrical outer wall portion in contact with or close to the hollow inner wall of the holder,
The lens assembly, wherein the holder includes a female screw portion into which the male screw portion is screwed into the inner wall, and a cylindrical inner wall portion in contact with or close to the cylindrical outer wall portion. 前記円筒外壁部が、前記雄ネジ部の溝底よりも太径に形成され、
前記ホルダは、前記レンズ枠を、前記センサ組立体に、前記後端面の開口から受け入れるものであることを特徴とする請求項１記載のレンズ組立体。 The cylindrical outer wall portion is formed to have a larger diameter than the groove bottom of the male screw portion,
The lens assembly according to claim 1, wherein the holder is configured to receive the lens frame into the sensor assembly from an opening in the rear end surface. 請求項１記載のレンズ組立体と撮像素子とを備えたことを特徴とする撮影装置。   An imaging apparatus comprising the lens assembly according to claim 1 and an imaging device.
JP2007055075A 2007-03-06 2007-03-06 Lens assembly and photographing device Abandoned JP2008216707A (en)

Priority Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013184389A1 (en) * 2012-06-08 2013-12-12 Apple Inc. Lens barrel mechanical interference prevention measures for camera module voice coil motor design

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61210307A (en) * 1985-03-15 1986-09-18 Hitachi Ltd Lens frame
JPH08101333A (en) * 1994-09-30 1996-04-16 Sanyo Electric Co Ltd Focusing device for optical lens
JP2006276572A (en) * 2005-03-30 2006-10-12 Seiko Precision Inc Lens unit, solid state imaging apparatus, and method of assembling lens unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61210307A (en) * 1985-03-15 1986-09-18 Hitachi Ltd Lens frame
JPH08101333A (en) * 1994-09-30 1996-04-16 Sanyo Electric Co Ltd Focusing device for optical lens
JP2006276572A (en) * 2005-03-30 2006-10-12 Seiko Precision Inc Lens unit, solid state imaging apparatus, and method of assembling lens unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013184389A1 (en) * 2012-06-08 2013-12-12 Apple Inc. Lens barrel mechanical interference prevention measures for camera module voice coil motor design
US8902352B2 (en) 2012-06-08 2014-12-02 Apple Inc. Lens barrel mechanical interference prevention measures for camera module voice coil motor design

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