JP2004328537A - Imaging element mounting apparatus - Google Patents

Imaging element mounting apparatus Download PDF

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Publication number
JP2004328537A
JP2004328537A JP2003122724A JP2003122724A JP2004328537A JP 2004328537 A JP2004328537 A JP 2004328537A JP 2003122724 A JP2003122724 A JP 2003122724A JP 2003122724 A JP2003122724 A JP 2003122724A JP 2004328537 A JP2004328537 A JP 2004328537A
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Japan
Prior art keywords
image pickup
rotating
adjustment
image
pickup device
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JP2003122724A
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Japanese (ja)
Inventor
Hiroki Matsunaga
裕樹 松永
Junichi Sato
純一 佐藤
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Hitachi Kokusai Electric Inc
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Hitachi Kokusai Electric Inc
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Priority to JP2003122724A priority Critical patent/JP2004328537A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging element mounting apparatus with which registration adjustment can be easily and surely performed in an imaging device and further, cost, working hours and the like can be remarkably reduced. <P>SOLUTION: The imaging device is provided with a mechanism to adjust a position of the imaging element in X, Y, and Z directions and to adjust a rotation of an angle θ, and each of the adjustment work can be performed from the same direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、撮像光学系を通して得られる光像を、撮像素子に結像させ、その撮像素子で得られた映像信号でもって撮像を行うようにした撮像装置の撮像素子取付装置に係り、特に、複数の撮像素子を用いるカラーテレビジョンカメラの撮像素子取付装置に関する。
【0002】
【従来の技術】
一般に、複数の撮像素子を用いたカラーテレビジョンカメラにおいては、撮像光学系を通して得られる光像を、複数色の分光光にそれぞれ分光する分光プリズムを備え、各色分光光ごとのプリズムの光射出部にそれぞれ撮像素子を取付けて、これら複数の撮像素子の出力信号を合成するようにすることで、カラー撮像した映像信号を得ているものがある。
【0003】
この信号合成については、各々の撮像素子により撮像される各色映像信号、例えば三色の映像信号でもって、被写体像を再現するときに、視聴者が見て違和感なくその被写体像を認識できるようにする必要がある。そのため、その画面上での信号どうしの重ね合わせ(レジストレーション)が一致するように、撮像装置の撮像素子位置の調整をおこない、その調整された位置でもって撮像素子が固定されるように、撮像素子の取付を行っている。この撮像素子の取り付け位置精度は、大概、数μmの精度を要する。
【0004】
また、一般に、撮像素子の取り付け時の位置決めは、専用の治具を用いることでレジストレーション調整を行っており、その調整の後、主に接着剤又は溶融金属を用いてプリズムの光射出部などに、撮像素子が固定されている。
【0005】
ここで、代表的な従来の固定方法について、図8を用いて説明する。この図において、プリズム20の光射出部と、撮像素子21のホルダ22をテーパ状に加工する。そして、プリズム20に対し、撮像素子21のレジストレーション調整を行うことでその位置決めを行い、その後、その位置を動かさないようにして、テーパ形状のスペーサ23を挿入すると共に、それらを接着剤でもって固定する。
【0006】
また、従来、特開平8−149351号公報に記載された固体撮像素子取付装置として、固体撮像素子を固定した金具と、カメラ筐体または該筐体に取り付けられた撮像レンズ本体に、ネジ止めや接着剤によって固定された金具とを、接着固定するとしたものがある。
【0007】
【特許文献1】
特開平8−149351号公報
【0008】
【発明が解決しようとする課題】
しかしながら、上述の従来技術は、下記に示す欠点を有する。すなわち、撮像素子の発熱、撮像装置内の電子回路からの発熱、撮像装置外部熱によって、接着剤に悪影響をおよぼし、レジストレーションずれを起こす場合がある。またこの場合、レジストレーションずれの修正には、接着剤を除去してから、再度撮像素子を取り付ける等の手間がかかり、生産工場へ戻して行う等の、多大なコストや作業時間等を要することとなる。
【0009】
また、撮像素子に何らかの不良が発生し、交換等が必要な場合であっても、同様にコストや時間が掛かる。
【0010】
さらに、レジストレーション調整治具の製作には、通常、多大な費用を要するため、その点に関しても生産設備費用がかさむこととなる。
【0011】
本発明はこれらの欠点を除去し、レジストレーション調整が簡便かつ確実に行え、さらに、コストや作業時間等を大幅に減ずることができる撮像装置を提供することを目的とする。
【0012】
【課題を解決するための手段】
本発明は、上記の課題を解決するために、光学系を通して得られる光像を結像して撮像を行う撮像素子の取付装置において、上記光学系に相対して、上記撮像素子をX方向、Y方向、Z方向のそれぞれ垂直な3方向の位置調整と、前記3方向の内いずれか1方向を軸方向とする回転軸の回転角度調整のうち少なくとも2以上の調整を行えると共に、前記調整のための調整作業が皆同一方向から行うことができるようにしたものである。
【0013】
【発明の実施の形態】
以下、本発明の実施の形態について、図1〜図7を用いて説明する。
【0014】
図1は、本発明の撮像素子取付装置の一実施例の左側面図である。図2は、図1のB−Bでの断面図であり、また、図3は、図1のC−Cでの断面図であり、また、図4は、図1のA−Aでの断面図である。
【0015】
図3に示すように、撮像素子21は部材4に固定されている。ここで、撮像素子21は、その撮像面が、図の左方向に向けられていて、すなわち、部材4とは反対の方向に向くように、部材4に取り付けられている。さらに、図2〜図4に示すように、部材4は部材2に保持され、部材2は部材3に保持され、部材3は部材1に保持されている。部材1は、カメラ筐体またはその筐体に固定されたプリズム光学系の光射出部に、固定される。
【0016】
図6は、この一実施例の全体斜視図である。この図において、撮像素子21の撮像面に対して、垂直な方向をZ方向とする。また、撮像面に平行で、部材1の長手方向をX方向とする。また、Z方向とX方向とに垂直な方向をY方向とする。さらに、部材4の円筒形状部分の円周の中心を回転軸(Z方向の軸)とする回転角度をθ角とする。
【0017】
以下、図2〜図4により、各部材間の相対位置調整について説明する。
まず、図2により、部材1に対してX方向、Y方向へ撮像素子21の相対位置を移動調整させる動作について説明する。
【0018】
図2において、5はネジ部を有する回転棒材で、板材30により部材1に取り付けられている。この回転棒材5のネジ部は、部材3のネジ部とかみ合(噛み合)わされており、この棒材5が回転することで、部材1に対し、部材1に保持された部材3の位置を、X方向に移動させることができる。
【0019】
そうすることによって、部材3に保持された部材2に、さらに保持された部材4に固定された撮像素子21が、部材1に対してX方向に相対移動される。
【0020】
ここで、回転棒材5を囲むように配置されたバネ13により、回転棒材5の回転軸方向に、部材1と部材3との間に所定のテンションを与えることで、上述のネジ部どうしのかみ合わせのガタつきを防止することができる。
【0021】
さらに、図7に示すように、バネ12と押付部材9により、部材3のネジ部を回転棒材5のネジ部に、所定のテンションで押し付けるようにして、部材3と回転棒材5および部材1とのガタつきを防止することができる。ここで、図7は、図2のD−Dでの断面図である。
【0022】
このとき、回転棒材5の回転調整作業時の作業方向としては、回転棒材5の回転軸方向がX方向であり、板材30の近傍に、ねじ回し等のトルクを受けるための調整用溝部があることから、図6に示す調整方向から調整することになる。
【0023】
また、図2において、6は略円筒形状を有する回転部材で、その円筒形状の底部の、円筒中心回転軸から偏心した位置にガイドピンを有する構造となっている。
【0024】
この回転部材6および後述する回転部材10,11の構成を図5の(a)に示す。この回転部材6が回転することによって、そのガイドピンが円筒中心回転軸に対して上下左右に移動する。そして、その移動によって、図5の(b)に示すように、ガイドピンが挿入された長穴構造のガイド溝を有する部材は、そのガイドピンによりガイド溝が上下または左右に押されて移動することにより、その部材の位置は、回転部材6の回転軸位置に対して、上下または左右に移動することになる。
【0025】
以上説明した構成を用いたことによる、図2の回転部材6による調整動作について説明する。回転部材6は、板材31により、その円筒中心回転軸方向がX軸方向となるように部材3に取り付けられている。そして、回転部材6のガイドピンが、部材3に保持された部材2に設けられたガイド溝に挿入されている。そのガイド溝は、Z方向に長くされた溝形状となっており、そのため回転部材6のガイドピンの移動によって、部材2のガイド溝はY方向に移動されることになる。そのため、回転部材6が回転することで、部材3に対し、部材3に保持された部材2の位置を、Y方向に移動させることができる。
【0026】
そうすることによって、部材2に保持された部材4に固定された撮像素子21が、部材3を保持する部材1に対してY方向に相対移動される。
【0027】
このとき、回転部材6の回転調整作業時の作業方向としては、回転部材6の回転軸方向がX方向であり、板材31の近傍に調整用溝部があることから、図6に示す調整方向から調整することになる。
【0028】
ここで、板材32により部材3に取り付けられたバネ7と、そのバネ7のテンションを部材2に伝えるためのV形レール形状を有する押付部材8により、回転部材6の回転軸方向、すなわちX方向に、部材3と部材2との間に所定のテンションを与えることで、それら部材間のガタつきを防止することができる。
【0029】
なお、押付部材8のV形レール形状に相対して、部材2にV溝レール形状を備えるようにし、それらレール方向をY方向とすることで、上記所定のテンションを与えながら、回転部材6によるY方向の移動調整には支障の無いように、それらレール間がなめらかに滑るように構成すればよい。
【0030】
さらに、図3により、部材1に対してZ方向へ撮像素子21の相対位置を移動調整させる動作について説明する。
【0031】
図3において、10は、上述の回転部材6と同様に、略円筒形状を有する回転部材で、その円筒形状の底部の、円筒中心回転軸から偏心した位置にガイドピンを有する構造となっている。
【0032】
この回転部材10は、板材33により、その円筒中心回転軸方向がX軸方向となるように部材2に取り付けられている。そして、回転部材10のガイドピンが、Z方向に高さを有する円筒形状部分の側面を有し、その側面でもって、部材2により保持された部材4の、その円筒形状部分に設けられたガイド溝に挿入されている。そのガイド溝は、Y方向側に長くされた溝形状となっており、そのため回転部材10のガイドピンの移動によって、部材4のガイド溝はZ方向に移動される。そのため、部材4の円筒形状部分と、それに相対して設けられた部材2の筒状保持部とがなめらかに滑るように構成されていることから、回転部材10が回転することで、部材2に対し、部材2に保持された部材4の位置を、Z方向に移動させることができる。
【0033】
そうすることによって、部材4に固定された撮像素子21が、部材2を保持する部材3を保持する部材1に対してZ方向に相対移動される。
【0034】
さらに、11は、上述の回転部材6、10と同様に、略円筒形状を有する回転部材で、その円筒形状の底部の、円筒中心回転軸から偏心した位置にガイドピンを有する構造となっている。
【0035】
この回転部材11は、板材33により、回転部材10と同様にその円筒中心回転軸方向がX軸方向となるように部材2に取り付けられている。そして、回転部材11のガイドピンが、部材2により保持された部材4の円筒形状部分に設けられたガイド溝に挿入されている。そのガイド溝は、Z方向側に長くされた溝形状となっており、そのため回転部材11のガイドピンの移動によって、部材4のガイド溝はZ方向を軸とする回転角度であるθ角が変化するように移動される。そのため、部材4の円筒形状部分と、それに相対して設けられた部材2の筒状保持部とがなめらかに滑るように構成されていることから、回転部材11が回転することで、部材2に対し、部材2に保持された部材4のθ角を、変化させることができる。
【0036】
そうすることによって、部材4に固定された撮像素子21が、部材2を保持する部材3を保持する部材1に対してθ角を相対的に変化させられる。
【0037】
このとき、回転部材10,11の回転調整作業時の作業方向としては、回転部材10,11の回転軸方向がX方向であり、板材33の近傍に調整用溝部があることから、図6に示す調整方向から調整することになる。
【0038】
なお、部材1に相対して可動する部材2,3,4を、調整後の位置でもって固定するためには、
1)ネジ15でもって、回転棒材5を板材30と部材1の間に固定して、回転棒材5が回転しないように固定する。
2)ネジ14でもって、回転部材6を板材31と部材3の間に固定して、回転部材6が回転しないように固定する。
3)図4に示すネジ16でもって、部材4の円筒側面が部材2の筒状保持部により締め付けられるようにする。
以上のように固定することで、各部材を固定することが可能となる。
【0039】
以上の説明したような構成の撮像素子取付装置により、撮像素子レジストレーション補正等のために、カメラ筐体等に対してX方向、Y方向、Z方向のそれぞれ垂直な3方向に撮像素子を位置移動調整したり、Z方向を軸方向とする回転軸の回転角度であるθ角について撮像素子を角度調整をする場合に、それら調整の全てを、その取付装置の片側方向(一方向)から行うことが可能となる。
【0040】
なお、それら調整の、少なくとも2以上の調整について、皆同一方向から作業可能で有るとする構成のものであっても、それが本発明の特徴を有するものであることは、いうまでもない。
【0041】
なお、上述した撮像素子は、CCD(charge coupled device)やCMOS等を用いた固体撮像素子でも良いし、撮像管であっても良い。
【0042】
【発明の効果】
本発明によれば、光学系を通して得られる光像を複数の撮像素子に結像させて撮像を行うようにした装置において、撮像素子をX方向、Y方向、Z方向の位置調整や、θ角回転可能な機構を有し、かつ、各々の調整作業が同一方向から行えるようにしたことにより、
1)撮像素子の発熱、撮像装置内の電子回路からの発熱、撮像装置外部熱によるレジストレーションへの悪影響を生じることがない。また過酷な使用環境下で使用され、何らかの理由でレジストレーションずれが発生したとしても、レジストレーション調整作業が同一面で行えるので短時間でその修正を行うことができる。
2)撮像素子に何らかの不良が発生した場合、又は撮像素子の評価段階で複数個の撮像素子の性能確認が必要な場合等、撮像素子の交換が必要になった時にも短時間で交換可能である。
3)多大な費用を要すレジストレーション調整治具が不要なため、生産設備費用を低減できる。
【図面の簡単な説明】
【図1】本発明の撮像素子取付装置の一実施例の左側面図。
【図2】図1のB−Bでの断面図。
【図3】図1のC−Cでの断面図。
【図4】図1のA−Aでの断面図。
【図5】本発明の一実施例における回転部材の構成と動作とを示す斜視図。
【図6】本発明の一実施例の全体斜視図。
【図7】図2のD−Dでの断面図。
【図8】従来の技術による撮像素子取付装置の一例の断面図。
【符号の説明】
1,2,3,4:部材、 5:回転棒材、 6,10,11:回転部材、 7,12,13:バネ、 8,9:押付部材、 14,15,16:ネジ、 20:プリズム、 21:撮像素子、 22:ホルダ、 23:スペーサ、 30,31,32,33:板材。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image pickup device mounting device of an image pickup device that forms an optical image obtained through an image pickup optical system on an image pickup device and performs image pickup using a video signal obtained by the image pickup device, and in particular, The present invention relates to an image sensor mounting device for a color television camera using a plurality of image sensors.
[0002]
[Prior art]
In general, a color television camera using a plurality of image pickup devices is provided with a spectral prism that separates an optical image obtained through an imaging optical system into spectral lights of a plurality of colors, and a light emitting unit of the prism for each color spectral light. In some cases, image signals are obtained by color imaging by attaching an image sensor to each of the image sensors and synthesizing output signals of the plurality of image sensors.
[0003]
This signal synthesis is performed so that a viewer can recognize the subject image without discomfort when reproducing the subject image using video signals of each color captured by each image sensor, for example, video signals of three colors. There is a need to. Therefore, the position of the image pickup device of the image pickup device is adjusted so that the superposition (registration) of the signals on the screen matches, and the image pickup is performed so that the image pickup device is fixed at the adjusted position. The device is being mounted. The mounting position accuracy of the image sensor generally requires an accuracy of several μm.
[0004]
In general, registration at the time of mounting the image sensor is adjusted by using a special jig, and after the adjustment, the light emitting portion of the prism is mainly formed by using an adhesive or a molten metal. , An image sensor is fixed.
[0005]
Here, a typical conventional fixing method will be described with reference to FIG. In this figure, the light emitting portion of the prism 20 and the holder 22 of the image sensor 21 are processed into a tapered shape. Then, the prism 20 is positioned by adjusting the registration of the image pickup device 21, and thereafter, the taper-shaped spacer 23 is inserted while the position is not moved, and they are attached with an adhesive. Fix it.
[0006]
Conventionally, as a solid-state imaging device mounting device described in Japanese Patent Application Laid-Open No. 8-149351, a screw to which a solid-state imaging device is fixed and a camera housing or an imaging lens body attached to the housing are mounted. In some cases, a metal fitting fixed by an adhesive is fixed by bonding.
[0007]
[Patent Document 1]
JP-A-8-149351
[Problems to be solved by the invention]
However, the above-mentioned prior art has the following disadvantages. That is, the adhesive may be adversely affected by heat generated by the image sensor, heat generated by an electronic circuit in the image pickup device, or heat external to the image pickup device, which may cause registration deviation. Also, in this case, correcting registration misregistration requires time and effort such as removing the adhesive and then attaching the image sensor again, and requires a great deal of cost and work time, such as returning to the production factory. It becomes.
[0009]
Further, even when some defect occurs in the image sensor and replacement is required, cost and time are similarly required.
[0010]
Further, the production of the registration adjustment jig usually requires a large amount of cost, and this also increases the production equipment cost.
[0011]
SUMMARY OF THE INVENTION It is an object of the present invention to eliminate these drawbacks and to provide an imaging apparatus capable of performing registration adjustment simply and reliably, and further reducing the cost and work time.
[0012]
[Means for Solving the Problems]
The present invention, in order to solve the above-described problems, in an image pickup device mounting device that forms an image by imaging a light image obtained through an optical system, relative to the optical system, the image sensor in the X direction, At least two or more of position adjustment in three directions perpendicular to each other in the Y direction and Z direction and rotation angle adjustment of a rotating shaft having any one of the three directions as an axial direction can be performed. Adjustment work can be performed from the same direction.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0014]
FIG. 1 is a left side view of an embodiment of the image pickup device mounting apparatus of the present invention. 2 is a sectional view taken along line BB of FIG. 1, FIG. 3 is a sectional view taken along line CC of FIG. 1, and FIG. 4 is a sectional view taken along line AA of FIG. It is sectional drawing.
[0015]
As shown in FIG. 3, the image sensor 21 is fixed to the member 4. Here, the image pickup device 21 is attached to the member 4 such that the image pickup surface thereof faces the left direction in the drawing, that is, faces in a direction opposite to the member 4. 2 to 4, the member 4 is held by the member 2, the member 2 is held by the member 3, and the member 3 is held by the member 1. The member 1 is fixed to a camera housing or a light emitting portion of a prism optical system fixed to the housing.
[0016]
FIG. 6 is an overall perspective view of this embodiment. In this figure, a direction perpendicular to the imaging surface of the imaging element 21 is defined as a Z direction. Further, the longitudinal direction of the member 1 is defined as the X direction, which is parallel to the imaging surface. A direction perpendicular to the Z direction and the X direction is defined as a Y direction. Further, the rotation angle with the center of the circumference of the cylindrical portion of the member 4 as the rotation axis (axis in the Z direction) is defined as the θ angle.
[0017]
Hereinafter, the relative position adjustment between the members will be described with reference to FIGS.
First, an operation of moving and adjusting the relative position of the imaging element 21 in the X direction and the Y direction with respect to the member 1 will be described with reference to FIG.
[0018]
In FIG. 2, reference numeral 5 denotes a rotating rod having a screw portion, which is attached to the member 1 by a plate 30. The threaded portion of the rotating bar 5 is meshed (engaged) with the threaded portion of the member 3, and the rotation of the bar 5 causes the member 3 held by the member 1 to move relative to the member 1. Can be moved in the X direction.
[0019]
By doing so, the imaging device 21 fixed to the member 2 held by the member 3 and further to the member 4 held by the member 3 is relatively moved in the X direction with respect to the member 1.
[0020]
Here, a predetermined tension is applied between the member 1 and the member 3 in the rotation axis direction of the rotating bar 5 by a spring 13 disposed so as to surround the rotating bar 5, so that the above-mentioned screw portions are connected to each other. It is possible to prevent rattling of the meshing.
[0021]
Furthermore, as shown in FIG. 7, the screw portion of the member 3 is pressed against the screw portion of the rotating bar 5 with a predetermined tension by the spring 12 and the pressing member 9, so that the member 3, the rotating bar 5 and the member are pressed. 1 can be prevented from rattling. Here, FIG. 7 is a cross-sectional view taken along line DD of FIG.
[0022]
At this time, as a working direction at the time of the rotation adjusting operation of the rotating bar 5, the rotating shaft direction of the rotating bar 5 is the X direction, and an adjusting groove portion for receiving a torque such as a screwdriver is provided near the plate 30. Therefore, the adjustment is performed from the adjustment direction shown in FIG.
[0023]
In FIG. 2, reference numeral 6 denotes a rotating member having a substantially cylindrical shape, and has a structure in which a guide pin is provided at a position eccentric from a cylindrical center rotation axis on the bottom of the cylindrical shape.
[0024]
FIG. 5A shows the configuration of the rotating member 6 and rotating members 10 and 11 described later. As the rotating member 6 rotates, the guide pin moves up, down, left, and right with respect to the cylindrical center rotation axis. By this movement, as shown in FIG. 5B, the member having the guide groove having the elongated hole structure in which the guide pin is inserted is moved by the guide pin being pushed up and down or left and right by the guide pin. As a result, the position of the member moves up and down or left and right with respect to the rotation axis position of the rotating member 6.
[0025]
An adjustment operation by the rotating member 6 in FIG. 2 using the above-described configuration will be described. The rotating member 6 is attached to the member 3 by a plate member 31 so that the direction of the cylindrical center rotation axis is the X-axis direction. Then, the guide pin of the rotating member 6 is inserted into a guide groove provided in the member 2 held by the member 3. The guide groove has a groove shape elongated in the Z direction. Therefore, the movement of the guide pin of the rotating member 6 causes the guide groove of the member 2 to move in the Y direction. Therefore, by rotating the rotating member 6, the position of the member 2 held by the member 3 can be moved in the Y direction with respect to the member 3.
[0026]
By doing so, the image sensor 21 fixed to the member 4 held by the member 2 is moved relative to the member 1 holding the member 3 in the Y direction.
[0027]
At this time, as the working direction at the time of the rotation adjusting work of the rotating member 6, since the rotating shaft direction of the rotating member 6 is the X direction and the adjusting groove portion is provided near the plate 31, the working direction is as shown in FIG. Will be adjusted.
[0028]
Here, the spring 7 attached to the member 3 by the plate member 32 and the pressing member 8 having a V-shaped rail shape for transmitting the tension of the spring 7 to the member 2, the rotation axis direction of the rotating member 6, that is, the X direction. By applying a predetermined tension between the member 3 and the member 2, rattling between the members can be prevented.
[0029]
The member 2 is provided with a V-groove rail shape in opposition to the V-shaped rail shape of the pressing member 8, and the rail direction is set to the Y direction. What is necessary is just to comprise so that these rails may slide smoothly so that there may be no trouble in the movement adjustment of a Y direction.
[0030]
Further, an operation of moving and adjusting the relative position of the imaging element 21 in the Z direction with respect to the member 1 will be described with reference to FIG.
[0031]
In FIG. 3, reference numeral 10 denotes a rotary member having a substantially cylindrical shape, similar to the rotary member 6 described above, and has a structure in which a guide pin is provided at a position eccentric from the cylindrical center rotation axis at the bottom of the cylindrical shape. .
[0032]
The rotating member 10 is attached to the member 2 by a plate member 33 such that the direction of the axis of rotation of the cylindrical center becomes the X-axis direction. The guide pin of the rotating member 10 has a side surface of a cylindrical portion having a height in the Z direction, and a guide provided on the cylindrical portion of the member 4 held by the member 2 with the side surface. Inserted in the groove. The guide groove has a groove shape elongated in the Y direction, so that the guide groove of the member 4 is moved in the Z direction by the movement of the guide pin of the rotating member 10. Therefore, since the cylindrical portion of the member 4 and the cylindrical holding portion of the member 2 provided opposite thereto are configured to smoothly slide, the rotation of the rotating member 10 On the other hand, the position of the member 4 held by the member 2 can be moved in the Z direction.
[0033]
By doing so, the imaging element 21 fixed to the member 4 is relatively moved in the Z direction with respect to the member 1 holding the member 3 holding the member 2.
[0034]
Further, reference numeral 11 is a rotary member having a substantially cylindrical shape, similarly to the rotary members 6 and 10 described above, and has a structure in which a guide pin is provided at a position eccentric from the cylindrical center rotation axis at the bottom of the cylindrical shape. .
[0035]
The rotating member 11 is attached to the member 2 by the plate member 33 so that the direction of the cylindrical center rotation axis is the X-axis direction, similarly to the rotating member 10. The guide pins of the rotating member 11 are inserted into guide grooves provided in the cylindrical portion of the member 4 held by the member 2. The guide groove has a groove shape elongated in the Z direction, and the movement of the guide pin of the rotating member 11 causes the guide groove of the member 4 to change the θ angle, which is the rotation angle about the Z direction. To be moved. Therefore, since the cylindrical portion of the member 4 and the cylindrical holding portion of the member 2 provided opposite thereto are configured to smoothly slide, the rotation of the rotating member 11 On the other hand, the θ angle of the member 4 held by the member 2 can be changed.
[0036]
By doing so, the imaging element 21 fixed to the member 4 can change the θ angle relatively to the member 1 holding the member 3 holding the member 2.
[0037]
At this time, as the working direction at the time of the rotation adjustment work of the rotating members 10 and 11, the direction of the rotation axis of the rotating members 10 and 11 is the X direction, and since there is an adjusting groove near the plate member 33, FIG. The adjustment will be performed from the adjustment direction shown.
[0038]
In order to fix the members 2, 3, and 4 movable relative to the member 1 at the adjusted position,
1) The rotating bar 5 is fixed between the plate 30 and the member 1 with the screw 15 so that the rotating bar 5 is not rotated.
2) The rotating member 6 is fixed between the plate member 31 and the member 3 with the screw 14 so that the rotating member 6 is not rotated.
3) With the screw 16 shown in FIG. 4, the cylindrical side surface of the member 4 is tightened by the cylindrical holding portion of the member 2.
By fixing as described above, each member can be fixed.
[0039]
With the imaging device mounting device having the above-described configuration, the imaging device is positioned in three directions perpendicular to the X direction, the Y direction, and the Z direction with respect to the camera housing or the like for correction of the imaging device registration. When performing the movement adjustment or the angle adjustment of the image sensor with respect to the θ angle which is the rotation angle of the rotation axis having the Z direction as the axial direction, all of those adjustments are performed from one side (one direction) of the mounting device. It becomes possible.
[0040]
Needless to say, at least two or more of these adjustments have the features of the present invention even if they are configured to be operable from the same direction.
[0041]
Note that the above-described image sensor may be a solid-state image sensor using a charge coupled device (CCD), a CMOS, or the like, or may be an image pickup tube.
[0042]
【The invention's effect】
According to the present invention, in an apparatus in which a light image obtained through an optical system is formed on a plurality of image pickup devices to perform image pickup, the image pickup device is adjusted in position in the X, Y, and Z directions, and the angle θ is adjusted. By having a rotatable mechanism and enabling each adjustment work from the same direction,
1) There is no adverse effect on the registration due to heat generated by the image sensor, heat generated by an electronic circuit in the image pickup device, and heat external to the image pickup device. Further, even if the registration is misaligned for some reason when used in a severe use environment, the registration adjustment work can be performed on the same surface, so that the correction can be made in a short time.
2) The image sensor can be replaced in a short time when the image sensor needs to be replaced, for example, when some defect occurs in the image sensor or when it is necessary to confirm the performance of a plurality of image sensors at the evaluation stage of the image sensor. is there.
3) Since a registration adjustment jig requiring a large amount of cost is not required, production equipment costs can be reduced.
[Brief description of the drawings]
FIG. 1 is a left side view of an embodiment of an image pickup device mounting apparatus according to the present invention.
FIG. 2 is a sectional view taken along line BB in FIG.
FIG. 3 is a sectional view taken along the line CC in FIG. 1;
FIG. 4 is a sectional view taken along the line AA in FIG. 1;
FIG. 5 is a perspective view showing the configuration and operation of a rotating member according to one embodiment of the present invention.
FIG. 6 is an overall perspective view of one embodiment of the present invention.
FIG. 7 is a sectional view taken along line DD of FIG. 2;
FIG. 8 is a cross-sectional view of an example of an image sensor mounting device according to a conventional technique.
[Explanation of symbols]
1, 2, 3, 4: member, 5: rotating bar, 6, 10, 11: rotating member, 7, 12, 13: spring, 8, 9: pressing member, 14, 15, 16: screw, 20: Prism, 21: imaging device, 22: holder, 23: spacer, 30, 31, 32, 33: plate material.

Claims (1)

光学系を通して得られる光像を結像して撮像を行う撮像素子の取付装置において、上記光学系に相対して、上記撮像素子をX方向、Y方向、Z方向のそれぞれ垂直な3方向の位置調整と、前記3方向の内いずれか1方向を軸方向とする回転軸の回転角度調整のうち少なくとも2以上の調整を行えると共に、前記調整のための調整作業が皆同一方向から行うことができることを特徴とする撮像素子取付装置。In an image pickup device mounting device that forms an image by forming a light image obtained through an optical system, the image pickup device is positioned in three directions perpendicular to an X direction, a Y direction, and a Z direction with respect to the optical system. At least two or more of the adjustment and the rotation angle adjustment of the rotating shaft having any one of the three directions as the axial direction can be performed, and the adjustment work for the adjustment can be performed from the same direction. An image pickup device mounting device characterized by the above-mentioned.
JP2003122724A 2003-04-25 2003-04-25 Imaging element mounting apparatus Pending JP2004328537A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Family

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Family Applications (1)

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011193339A (en) * 2010-03-16 2011-09-29 Ricoh Co Ltd Method of assembling imaging apparatus, and imaging apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011193339A (en) * 2010-03-16 2011-09-29 Ricoh Co Ltd Method of assembling imaging apparatus, and imaging apparatus

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