JP2003161870A - Lens holding mechanism for camera equipped with solid- state image pickup element - Google Patents
Lens holding mechanism for camera equipped with solid- state image pickup elementInfo
- Publication number
- JP2003161870A JP2003161870A JP2001360620A JP2001360620A JP2003161870A JP 2003161870 A JP2003161870 A JP 2003161870A JP 2001360620 A JP2001360620 A JP 2001360620A JP 2001360620 A JP2001360620 A JP 2001360620A JP 2003161870 A JP2003161870 A JP 2003161870A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- rotation
- optical axis
- camera
- knurl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は固体撮像素子を用い
たカメラのレンズ保持機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens holding mechanism for a camera using a solid-state image sensor.
【０００２】[0002]
【従来の技術】固体撮像素子を用いたカメラが、大きく
変動する周囲環境温度や振動環境下において車載用また
は工業用として用いられている。この種のカメラはレン
ズをレンズホルダに取り付けピント調整をして取り付け
る構造となっている。そしてレンズの固定はレンズ光軸
と垂直方向から先端が尖った止めねじによってレンズホ
ルダに固定するのが一般的である。かかる場合、レンズ
鏡枠，レンズホルダ，止めねじなどのレンズを固定する
ために構成される部材はすべて熱膨張率を揃えなければ
ならず、周囲環境の変化に対し部材の熱膨張によりレン
ズ固定の規制力が弱まり、また振動・クリープなどによ
りねじの緩みが起こったときは最悪の場合ピントずれを
発生させる。さらにレンズ固定に止めねじを使用した場
合は、レンズ鏡枠に初期調整時のねじの押し付け跡が残
り、再度の微調整が困難となる。2. Description of the Related Art A camera using a solid-state image pickup device is used for an on-vehicle or an industrial use under a significantly fluctuating ambient temperature or vibration environment. This type of camera has a structure in which a lens is attached to a lens holder and focus adjustment is performed. The lens is generally fixed to the lens holder with a set screw having a pointed tip in a direction perpendicular to the optical axis of the lens. In such a case, the members for fixing the lens, such as the lens barrel, the lens holder, and the set screw, must all have the same coefficient of thermal expansion, and the lens is fixed by the thermal expansion of the member against changes in the surrounding environment. In the worst case, if the regulation force is weakened and the screw is loosened due to vibration or creep, out-of-focus will occur. Furthermore, when a set screw is used for fixing the lens, a screw pressing mark at the time of initial adjustment remains on the lens barrel, and it becomes difficult to perform fine adjustment again.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、温度
変動や振動などの環境変化に起因するピントずれが発生
することのない固体撮像素子を用いたカメラのレンズ保
持機構を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a lens holding mechanism for a camera using a solid-state image sensor which does not cause a focus shift due to environmental changes such as temperature fluctuations and vibrations. is there.
【０００４】[0004]
【課題を解決するための手段】前記目的を達成するため
に本発明による固体撮像素子を用いたカメラのレンズ保
持機構は、レンズ鏡枠をレンズ保持部材のレンズ結合円
筒部に螺合させて固定することにより光軸方向にピント
位置を調整してレンズを取り付ける構造のカメラにおい
て、前記レンズ鏡枠の外周面に光軸方向に縦目のローレ
ット部を形成するとともに前記レンズ結合円筒部の外周
面に回転阻止部を設け、前記ローレット部と相補的な形
状のローレット係合溝と、前記回転阻止部と相補的な形
状の回転阻止係合部とを有するレンズ固定部材を備え、
前記回転阻止部に回転阻止係合部を係合させることによ
り前記回転阻止部を前記レンズ固定部材の回転を阻止し
つつ前記レンズ固定部材を前記レンズ結合円筒部に嵌合
させておき、レンズをピント位置調整した後、前記レン
ズ固定部材を光軸方向に移動させて前記ローレット係合
溝を前記ローレット部に係合させ、前記レンズ固定部材
に螺合したビスの先端を前記レンズ結合円筒部の外周面
に押し当てることによりレンズを固定するように構成さ
れている。また、本発明における前記回転阻止係合部
は、光軸方向に設けられた長溝であり、前記回転阻止部
は前記長溝に嵌合する長板形状で構成されている。In order to achieve the above object, a lens holding mechanism of a camera using a solid-state image pickup device according to the present invention is fixed by screwing a lens barrel to a lens coupling cylindrical portion of a lens holding member. In a camera having a structure in which the lens is adjusted by adjusting the focus position in the optical axis direction by forming a vertical knurled portion in the optical axis direction on the outer peripheral surface of the lens barrel and the outer peripheral surface of the lens coupling cylindrical portion. And a lens fixing member having a knurling engagement groove having a shape complementary to the knurling section and a rotation blocking engagement section having a shape complementary to the rotation blocking section,
By engaging a rotation-preventing engagement portion with the rotation-prevention portion, the rotation-prevention portion is prevented from rotating the lens-fixing member while the lens-fixing member is fitted in the lens-coupling cylindrical portion. After adjusting the focus position, the lens fixing member is moved in the optical axis direction to engage the knurling groove with the knurl portion, and the tip of the screw screwed to the lens fixing member is attached to the lens coupling cylindrical portion. The lens is fixed by being pressed against the outer peripheral surface. Further, the rotation prevention engagement portion in the present invention is a long groove provided in the optical axis direction, and the rotation prevention portion is formed in a long plate shape that fits into the long groove.
【０００５】[0005]
【発明の実施の形態】以下、図面を参照して本発明の実
施の形態を詳しく説明する。図１は、本発明によるレン
ズ保持機構を適用したカメラの外観を示す図で、（ａ）
は正面図，（ｂ）は側面図，（ｃ）は平面図である。図
２は本発明によるレンズ保持機構を適用したカメラの外
観斜視図である。この図は、レンズ固定用の中間部材で
あるレンズリテーナでレンズ位置を固定する前の状態を
示している。レンズ鏡枠１０の外周に設けられているね
じ山（図示していない）がレンズホルダ４のレンズ結合
円筒部８（図３参照）のねじ部に噛合して挿入され、所
定ピント位置に設定される。レンズ鏡枠１０のほぼ中央
に光軸方向に縦目のローレット部３が設けられている。
レンズリテーナ２はレンズ結合円筒部８に嵌合されてい
る。固定ねじ穴４ａは図示しない筐体（例えば車体）に
取り付けるためのものであり、位置決めピン４ｂは、筐
体取り付け時の位置を決めるためのものである。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a view showing the outer appearance of a camera to which a lens holding mechanism according to the present invention is applied.
Is a front view, (b) is a side view, and (c) is a plan view. FIG. 2 is an external perspective view of a camera to which the lens holding mechanism according to the present invention is applied. This figure shows a state before the lens position is fixed by a lens retainer which is an intermediate member for fixing the lens. A screw thread (not shown) provided on the outer periphery of the lens barrel 10 is inserted into the screw portion of the lens coupling cylindrical portion 8 (see FIG. 3) of the lens holder 4 so as to be set at a predetermined focus position. It A vertical knurled portion 3 is provided in the optical axis direction at substantially the center of the lens frame 10.
The lens retainer 2 is fitted in the lens coupling cylindrical portion 8. The fixing screw hole 4a is for attaching to a casing (for example, a vehicle body) not shown, and the positioning pin 4b is for determining a position when attaching the casing.
【０００６】図３は、本発明による撮像素子を用いたカ
メラの分解図で、（ａ）は斜め前からの斜視図，（ｂ）
は斜め後ろからの斜視図である。レンズホルダ４は、矩
形状の板で、周囲は立上部４ｃが連設された構造となっ
ている。レンズホルダ４の４隅には固定ねじ穴４ａおよ
び位置決めピン４ｂが配置され、その中央には円筒部内
壁に雌ねじを有するレンズ結合円筒部８が設けられてい
る。レンズ結合円筒部８の外周部には回転阻止部８ａが
上と下の２箇所に設けられている。一方、レンズ１を組
み込んであるレンズ鏡枠１０は後端円周部に雄ネジ（図
示されていない）が設けられ、中央部には上述したよう
にローレット部３が設けられている。3A and 3B are exploded views of a camera using an image pickup device according to the present invention. FIG. 3A is a perspective view from an oblique front, and FIG.
[Fig. 3] is a perspective view from diagonally behind. The lens holder 4 is a rectangular plate having a structure in which a rising portion 4c is continuously provided on the periphery. Fixing screw holes 4a and positioning pins 4b are arranged at four corners of the lens holder 4, and a lens coupling cylindrical portion 8 having a female screw is provided on the inner wall of the cylindrical portion at the center thereof. On the outer peripheral portion of the lens coupling cylindrical portion 8, rotation blocking portions 8a are provided at two locations, an upper portion and a lower portion. On the other hand, the lens barrel 10 incorporating the lens 1 is provided with a male screw (not shown) at the rear end circumferential portion and the knurled portion 3 at the central portion as described above.
【０００７】レンズ鏡枠１０とレンズ結合円筒部８の間
を固定するための円筒形のレンズリテーナ２は、その内
壁の３箇所にローレット係合溝２ａが１２０°間隔で設
けられている。また、該内壁には２つの回転阻止溝２ｃ
が設けられている。レンズホルダ４の裏面側には一面に
撮像素子６を搭載し、他方面にＤＳＰ７を搭載したプリ
ント回路ボード５がビス止めにより取り付けられてい
る。The cylindrical lens retainer 2 for fixing the lens barrel 10 and the lens coupling cylindrical portion 8 is provided with knurl engagement grooves 2a at three intervals on its inner wall at 120 ° intervals. Further, the inner wall has two rotation preventing grooves 2c.
Is provided. On the back side of the lens holder 4, an image pickup device 6 is mounted on one surface and a printed circuit board 5 on which the DSP 7 is mounted on the other surface is attached with screws.
【０００８】図４は、本発明による撮像素子を用いたカ
メラのピント調整方法を説明するための図で、（ａ）は
ピント調整前の状態を、（ｂ）はピント調整後の状態を
それぞれ示している。図３において回転阻止溝２ｃを回
転阻止部８ａに係合させつつレンズリテーナ２をレンズ
結合円筒部８に嵌合する。レンズ鏡枠１０をレンズ結合
円筒部８に差し込み回転させることによりレンズ鏡枠１
０の外周部とレンズ結合円筒部８の内壁部が螺合する。
回転量を調整することによりレンズ鏡枠１０は光軸方向
に前後してピント位置を調整することができる。（ａ）
はこの状態を示している。4A and 4B are views for explaining a focus adjustment method for a camera using an image pickup device according to the present invention. FIG. 4A shows a state before focus adjustment, and FIG. 4B shows a state after focus adjustment. Shows. In FIG. 3, the lens retainer 2 is fitted into the lens coupling cylindrical portion 8 while the rotation inhibiting groove 2c is engaged with the rotation inhibiting portion 8a. By inserting the lens barrel 10 into the lens coupling cylindrical portion 8 and rotating the lens barrel 1, the lens barrel 1
The outer peripheral portion of 0 and the inner wall portion of the lens coupling cylindrical portion 8 are screwed together.
By adjusting the rotation amount, the lens barrel 10 can be moved back and forth in the optical axis direction to adjust the focus position. (A)
Indicates this state.
【０００９】ピント調整が終了した時点で（ａ）の状態
から矢印１０方向にレンズリテーナ２をスライドさせて
ローレット係合溝２ａをローレット部３に噛み合わせ
る。図５にレンズ鏡枠のローレット部とレンズリテーナ
のローレット係合溝との噛み合わせの状態を示す。この
後、ねじ９をレンズリテーナ２のねじ穴２ｂに通し、回
転阻止部８ａのねじ部８ｂに螺合させて固定する。これ
によりレンズ鏡枠１０はレンズホルダ４に固定される。
（ｂ）はこの状態を示しているWhen the focus adjustment is completed, the lens retainer 2 is slid in the direction of the arrow 10 from the state of (a) so that the knurl engagement groove 2a is engaged with the knurl portion 3. FIG. 5 shows a state in which the knurled portion of the lens barrel and the knurled engagement groove of the lens retainer are in mesh with each other. Then, the screw 9 is passed through the screw hole 2b of the lens retainer 2 and screwed into the screw portion 8b of the rotation blocking portion 8a to be fixed. As a result, the lens barrel 10 is fixed to the lens holder 4.
(B) shows this state
【００１０】なお、レンズ固定時にはレンズの山部とレ
ンズリテーナの谷部がそのままの位置で噛み合うことが
望ましいが、合焦位置で止めた後、レンズ鏡枠のローレ
ットの山とレンズリテーナのローレット係合溝の谷が合
わない場合がある。本発明では、レンズを回転微調整量
による焦点移動量がレンズ光学系の焦点深度と比較して
十分小さく、得られる解像に影響を及ぼすことがないよ
うにレンズのローレット山ピッチを設定する。すなわ
ち、ローレットの山は１ピッチ回転分の焦点移動量がレ
ンズの焦点深度に対し十分小さなものとなっている。し
たがって、最大回転微調整量は、１／２山移動すること
になるが、レンズ鏡枠をレンズリテーナの山の噛み合う
位置まで微調整して固定しても解像にほとんど影響はな
く無視できる。When the lens is fixed, it is desirable that the crests of the lens and the troughs of the lens retainer engage with each other at the same positions. The valley of the ditch may not fit. In the present invention, the knurl pitch of the lens is set so that the amount of focus movement due to the rotational fine adjustment amount of the lens is sufficiently smaller than the depth of focus of the lens optical system and does not affect the obtained resolution. That is, in the knurled peak, the amount of focus movement for one pitch rotation is sufficiently smaller than the depth of focus of the lens. Therefore, the maximum rotation fine adjustment amount is moved by 1/2 hill, but even if the lens barrel is finely adjusted and fixed to the position where the ridges of the lens retainer are engaged with each other, the resolution is hardly affected and can be ignored.
【００１１】本発明は、仮にレンズリテーナをレンズホ
ルダに固定するねじが緩んだとしても、ねじがレンズリ
テーナから完全に外れない限りピントずれが発生するこ
とはない。また、調整工程において一旦レンズを固定し
た後の再調整が容易である。さらにレンズホルダに対し
レンズリテーナの円周方向の回転を規制することにより
レンズの固定を行なっている。According to the present invention, even if the screw for fixing the lens retainer to the lens holder is loosened, focus deviation does not occur unless the screw is completely removed from the lens retainer. Further, it is easy to readjust after fixing the lens once in the adjusting step. Further, the lens is fixed by restricting the circumferential rotation of the lens retainer with respect to the lens holder.
【００１２】[0012]
【発明の効果】以上、説明したように本発明は、レンズ
鏡枠をレンズ保持部材のレンズ結合円筒部に螺合させて
固定することにより光軸方向にピント位置を調整してレ
ンズを取り付ける構造のカメラにおいて、レンズ保持部
材であるレンズホルダに直接固定するのではなく、レン
ズ固定用の中間部材であるレンズリテーナを介してレン
ズホルダに固定しているので、温度変化や振動が激しい
環境下においてもピントずれのない信頼性の高いカメラ
を提供できる。すなわち、レンズの固定に対し直接ねじ
を使用していないため、環境温度が変化した時にもレン
ズ固定部材の熱膨脹を起因とするピントずれを発生させ
ることがない。また、同様に振動環境による止めねじの
緩みを起因するピントのずれを発生させることもない。
レンズの固定に対し止めネジでその位置を保持していな
いため、ねじの押しつけ跡が残らずピントの再調整が容
易であるなどの効果を有する。As described above, according to the present invention, the lens barrel is screwed and fixed to the lens coupling cylindrical portion of the lens holding member to adjust the focus position in the optical axis direction to mount the lens. In this camera, it is not directly fixed to the lens holder that is the lens holding member, but is fixed to the lens holder via the lens retainer that is an intermediate member for fixing the lens, so in an environment where temperature changes and vibrations are severe. It is possible to provide a highly reliable camera that is not out of focus. That is, since the screw is not directly used for fixing the lens, the focus shift due to the thermal expansion of the lens fixing member does not occur even when the environmental temperature changes. Further, similarly, there is no occurrence of focus shift due to loosening of the set screw due to the vibration environment.
Since the position is not held by the set screw for fixing the lens, there is an effect that the focus of the screw is not left and the readjustment of the focus is easy.
【図１】本発明によるレンズ保持機構を適用したカメラ
の外観を示す図で、（ａ）は正面図，（ｂ）は側面図，
（ｃ）は平面図である。1A and 1B are views showing the appearance of a camera to which a lens holding mechanism according to the present invention is applied, in which FIG. 1A is a front view, FIG.
(C) is a plan view.
【図２】本発明によるレンズ保持機構を適用したカメラ
の外観斜視図である。FIG. 2 is an external perspective view of a camera to which the lens holding mechanism according to the present invention is applied.
【図３】本発明による撮像素子を用いたカメラの分解図
で、（ａ）は斜め前からの斜視図，（ｂ）は斜め後ろか
らの斜視図である。3A and 3B are exploded views of a camera using an image pickup device according to the present invention, where FIG. 3A is a perspective view from an oblique front side, and FIG. 3B is a perspective view from an oblique rear side.
【図４】本発明による撮像素子を用いたカメラのピント
調整方法を説明するための図で、（ａ）はピント調整前
の状態を、（ｂ）はピント調整後の状態をそれぞれ示し
ている。4A and 4B are diagrams for explaining a focus adjustment method for a camera using an image sensor according to the present invention, where FIG. 4A shows a state before focus adjustment and FIG. 4B shows a state after focus adjustment. .
【図５】レンズのローレット部とレンズリテーナの係合
を説明するための図である。FIG. 5 is a diagram for explaining engagement between a knurled portion of a lens and a lens retainer.
１ レンズ ２ レンズリテーナ（レンズ固定用部材） ３ ローレット部 ４ レンズホルダ（レンズ保持部材） ５ プリント回路ボード ６ 撮像素子 ７ ディジタルシグナルプロセッサ（ＤＳＰ） ８ レンズ結合円筒部 ９ ビス（ねじ） １０ レンズ鏡枠 1 lens 2 Lens retainer (lens fixing member) 3 Knurl part 4 Lens holder (lens holding member) 5 printed circuit board 6 Image sensor 7 Digital Signal Processor (DSP) 8 Lens coupling cylinder 9 screw (screw) 10 lens frame
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｎ 5/335 Ｈ０１Ｌ 27/14 Ｄ ─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. 7 Identification Code FI Theme Coat (Reference) H04N 5/335 H01L 27/14 D
Claims (2)
合円筒部に螺合させて固定することにより光軸方向にピ
ント位置を調整してレンズを取り付ける構造のカメラに
おいて、 前記レンズ鏡枠の外周面に光軸方向に縦目のローレット
部を形成するとともに前記レンズ結合円筒部の外周面に
回転阻止部を設け、 前記ローレット部と相補的な形状のローレット係合溝
と、前記回転阻止部と相補的な形状の回転阻止係合部と
を有するレンズ固定部材を備え、 前記回転阻止部に回転阻止係合部を係合させることによ
り前記回転阻止部を前記レンズ固定部材の回転を阻止し
つつ前記レンズ固定部材を前記レンズ結合円筒部に嵌合
させておき、 レンズをピント位置調整した後、前記レンズ固定部材を
光軸方向に移動させて前記ローレット係合溝を前記ロー
レット部に係合させ、 前記レンズ固定部材に螺合したビスの先端を前記レンズ
結合円筒部の外周面に押し当てることによりレンズを固
定することを特徴とする固体撮像素子を用いたカメラの
レンズ保持機構。1. A camera having a structure for mounting a lens by adjusting a focus position in an optical axis direction by screwing and fixing a lens barrel to a lens coupling cylindrical portion of a lens holding member, and the outer periphery of the lens barrel. Forming a longitudinal knurling portion in the optical axis direction on the surface and providing a rotation blocking portion on the outer peripheral surface of the lens coupling cylindrical portion, a knurling engagement groove having a shape complementary to the knurling portion, and the rotation blocking portion. A lens fixing member having a rotation blocking engagement portion having a complementary shape, and the rotation blocking portion blocking the rotation of the lens fixing member by engaging the rotation blocking engagement portion with the rotation blocking portion. The lens fixing member is fitted in the lens coupling cylindrical portion, the lens is adjusted in focus position, and then the lens fixing member is moved in the optical axis direction so that the knurled engaging groove is formed in the roller. A lens of a camera using a solid-state imaging device, characterized in that the lens is fixed by engaging the lens portion with the tip of a screw screwed into the lens fixing member against the outer peripheral surface of the lens coupling cylindrical portion. Retention mechanism.
られた長溝であり、前記回転阻止部は前記長溝に嵌合す
る長板形状であることを特徴とする請求項１記載の固体
撮像素子を用いたカメラのレンズ保持機構。2. The rotation preventing engagement portion is a long groove provided in the optical axis direction, and the rotation preventing portion has an elongated plate shape that fits in the long groove. A lens holding mechanism for a camera that uses a solid-state image sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001360620A JP3862556B2 (en) | 2001-11-27 | 2001-11-27 | Camera lens holding mechanism using solid-state image sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001360620A JP3862556B2 (en) | 2001-11-27 | 2001-11-27 | Camera lens holding mechanism using solid-state image sensor |
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| Publication Number | Publication Date |
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| JP2003161870A true JP2003161870A (en) | 2003-06-06 |
| JP3862556B2 JP3862556B2 (en) | 2006-12-27 |
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| JP2001360620A Expired - Fee Related JP3862556B2 (en) | 2001-11-27 | 2001-11-27 | Camera lens holding mechanism using solid-state image sensor |
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|---|---|---|---|---|
| JP2006165607A (en) * | 2004-12-02 | 2006-06-22 | Omron Corp | Imaging apparatus and apparatus for recognizing three-dimensional object |
| JP2007147940A (en) * | 2005-11-28 | 2007-06-14 | Auto Network Gijutsu Kenkyusho:Kk | Imaging apparatus |
| WO2010095627A1 (en) * | 2009-02-23 | 2010-08-26 | 京セラ株式会社 | Imaging module |
| JP2013205782A (en) * | 2012-03-29 | 2013-10-07 | Nec Embedded Products Ltd | Optical unit and camera module |
| EP2722711A1 (en) * | 2011-06-14 | 2014-04-23 | Kyocera Corporation | Imaging module |
| CN104570259A (en) * | 2015-01-20 | 2015-04-29 | 中国科学院上海光学精密机械研究所 | Pressing plate for fixing optical element |
| JP2018082397A (en) * | 2016-11-18 | 2018-05-24 | アイホン株式会社 | Intercom device |
| JP2021076755A (en) * | 2019-11-12 | 2021-05-20 | 孝哲 青木 | Compact camera and camera lens holder |
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2001
- 2001-11-27 JP JP2001360620A patent/JP3862556B2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4576994B2 (en) * | 2004-12-02 | 2010-11-10 | オムロン株式会社 | Imaging apparatus and three-dimensional object recognition apparatus |
| JP2006165607A (en) * | 2004-12-02 | 2006-06-22 | Omron Corp | Imaging apparatus and apparatus for recognizing three-dimensional object |
| JP2007147940A (en) * | 2005-11-28 | 2007-06-14 | Auto Network Gijutsu Kenkyusho:Kk | Imaging apparatus |
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| WO2010095627A1 (en) * | 2009-02-23 | 2010-08-26 | 京セラ株式会社 | Imaging module |
| CN102308571B (en) * | 2009-02-23 | 2014-04-02 | 京瓷株式会社 | Imaging module |
| EP2722711A1 (en) * | 2011-06-14 | 2014-04-23 | Kyocera Corporation | Imaging module |
| EP2722711A4 (en) * | 2011-06-14 | 2014-12-17 | Kyocera Corp | Imaging module |
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| JP2013205782A (en) * | 2012-03-29 | 2013-10-07 | Nec Embedded Products Ltd | Optical unit and camera module |
| CN104570259A (en) * | 2015-01-20 | 2015-04-29 | 中国科学院上海光学精密机械研究所 | Pressing plate for fixing optical element |
| JP2018082397A (en) * | 2016-11-18 | 2018-05-24 | アイホン株式会社 | Intercom device |
| JP2021076755A (en) * | 2019-11-12 | 2021-05-20 | 孝哲 青木 | Compact camera and camera lens holder |
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| JP3862556B2 (en) | 2006-12-27 |
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