JP2007124189A - Imaging apparatus - Google Patents

Imaging apparatus Download PDF

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JP2007124189A
JP2007124189A JP2005312390A JP2005312390A JP2007124189A JP 2007124189 A JP2007124189 A JP 2007124189A JP 2005312390 A JP2005312390 A JP 2005312390A JP 2005312390 A JP2005312390 A JP 2005312390A JP 2007124189 A JP2007124189 A JP 2007124189A
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antenna
imaging
transparent body
imaging apparatus
incident
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JP4725723B2 (en
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Katsuhiro Hataki
勝博 羽滝
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Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus for wirelessly communicating imaged data that can simply be installed. <P>SOLUTION: The imaging apparatus provided with a reflection section such as a mirror to image a surrounding state over a wide field angle is configured to include: an optical member 1 comprising a transparent body 1 including an incident face 11a onto which surrounding light is made incident and the reflection section 12 for reflecting the surrounding light made incident from the transparent body 11; an imaging element 3 for imaging the surrounding light reflected in the reflection section 12; and an antenna 5 capable of transmitting the imaged data obtained by the imaging element 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ミラーなどの反射部を設けて、周辺の状態を広画角に撮像する撮像装置に関するものである。   The present invention relates to an image pickup apparatus that includes a reflecting portion such as a mirror and picks up a peripheral state with a wide angle of view.

従来より、広画角に撮像する撮像装置が種々提案されており、例えば特許文献1及び特許文献2に開示されている。かかる撮像装置は、双曲面形状の反射ミラーを用いて周囲光を反射させ、CCD(Charge Coupled Device)等の撮像素子によって周囲の様子を撮像するものである。
特開平10−160463号公報 特開2000−128031号公報
Conventionally, various image pickup apparatuses that pick up images with a wide angle of view have been proposed. For example, Patent Documents 1 and 2 disclose them. Such an imaging apparatus reflects ambient light using a hyperboloid-shaped reflection mirror, and images the surroundings with an imaging device such as a CCD (Charge Coupled Device).
JP-A-10-160463 JP 2000-128031 A

また、かかる撮像装置は、人の手の届きづらい所や危険な所など使用目的によって任意の位置に設置される。しかしながら、撮像素子によって得られる撮像データは、この設置場所と離れた所で利用されることがある。そこで、撮像データを送信するための送信用アンテナを設けて無線通信を利用し、離れた所であっても撮像データを利用できるように構成されることが求められていた。   Further, such an imaging apparatus is installed at an arbitrary position depending on the purpose of use such as a place where it is difficult to reach human hands or a dangerous place. However, imaging data obtained by the imaging element may be used at a location away from the installation location. Therefore, it has been required to provide a transmission antenna for transmitting imaging data and use wireless communication so that the imaging data can be used even at a remote location.

しかしながら、前記送信用アンテナは、撮像装置の視界の妨げになったり、送信に好適な設置位置を選択する必要があったため、設置するのに面倒な作業が必要であった。また、前記送信用アンテナの設置を考慮して撮像装置の設置位置を限定してしまう場合や、設置できない場合があり問題となっていた。   However, since the transmission antenna hinders the field of view of the imaging apparatus or it is necessary to select an installation position suitable for transmission, a troublesome work is required for installation. In addition, the installation position of the imaging device may be limited in consideration of the installation of the transmitting antenna, or the installation may not be possible.

そこで、本発明の目的とするところは、上述した問題に着目してなされたものであって、撮像データを無線通信する撮像装置において、簡単に設置できる撮像装置を提供することにある。   Accordingly, an object of the present invention is to provide an imaging apparatus that can be easily installed in an imaging apparatus that wirelessly communicates imaging data.

本発明の撮像装置は、請求項1に記載したように、周囲光が入射する入射面を有する透明体と前記透明体から入射した前記周囲光を反射させる反射部とを設けてなる光学部材と、前記反射部によって反射された前記周囲光を撮像する撮像手段と、少なくとも前記撮像手段によって得られる撮像データを送信可能なアンテナと、を備えてなることを特徴とする。   The imaging device according to the present invention, as described in claim 1, includes an optical member provided with a transparent body having an incident surface on which ambient light is incident and a reflecting portion that reflects the ambient light incident from the transparent body; An image pickup means for picking up the ambient light reflected by the reflecting section, and an antenna capable of transmitting at least image pickup data obtained by the image pickup means.

また、請求項2に記載したように、請求項1に記載の撮像装置において、前記アンテナは、前記入射面以外であり、かつ前記光学部材の先端側に設けられてなることを特徴とする。   In addition, as described in claim 2, in the imaging device according to claim 1, the antenna is provided on a tip side of the optical member other than the incident surface.

また、請求項3に記載したように、請求項2に記載の撮像装置において、前記アンテナは、前記透明体の入射面に形成された透光性の配線と接続されてなることを特徴とする。   In addition, as described in claim 3, in the imaging device according to claim 2, the antenna is connected to a light-transmitting wiring formed on an incident surface of the transparent body. .

また、請求項4に記載したように、請求項1に記載の撮像装置において、前記アンテナは、前記透明体の入射面に形成される透光性の部材からなることを特徴とする。   According to a fourth aspect of the present invention, in the imaging apparatus according to the first aspect, the antenna is made of a translucent member formed on an incident surface of the transparent body.

本発明は、被撮像体を広画角に撮像する撮像装置に関し、簡単に設置できる撮像装置を提供できる。   The present invention relates to an imaging apparatus that captures an object to be imaged at a wide angle of view, and can provide an imaging apparatus that can be easily installed.

以下、添付の図面に基づいて、本発明の実施するための形態について例を挙げて説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment for carrying out the present invention will be described with reference to the accompanying drawings.

撮像装置Aは、図1に示すように、光学部材1と、ケース2と、撮像素子(撮像手段)3と、回路基板4と、アンテナ5と、配線6と、キャップ7と、から構成されている。   As shown in FIG. 1, the imaging apparatus A includes an optical member 1, a case 2, an imaging element (imaging means) 3, a circuit board 4, an antenna 5, wiring 6, and a cap 7. ing.

光学部材1は、周囲光を撮像素子3に集光させるものであり、透明体11と、反射部12と、を有している。   The optical member 1 condenses ambient light on the image sensor 3 and includes a transparent body 11 and a reflecting portion 12.

透明体11は、ポリカーボネートなどの透明樹脂材を適用でき、周囲光が入射する曲面形状の入射面11aと、双曲面形状の凹部11bと、ケース2と接合するための取付部11cとを設けている。   The transparent body 11 can be made of a transparent resin material such as polycarbonate, and includes a curved-shaped incident surface 11 a on which ambient light is incident, a hyperboloid-shaped concave portion 11 b, and an attachment portion 11 c for joining to the case 2. Yes.

反射部12は、入射面11aから入射した周囲光を集光して反射像として映し出すものであり、凸状の連続曲面を有する略円錐形状(例えば、双曲面形状)にて形成される。この場合、反射部12は、凹部11bの面にアルミニウムあるいはクロム等の金属膜にてコーティングされて鏡面となっている。なお、反射部12は、球面鏡、回転放物面鏡あるいは回転双曲面鏡等の回転対称の凸面を有するものが好適である。   The reflection unit 12 collects ambient light incident from the incident surface 11a and projects it as a reflected image, and is formed in a substantially conical shape (for example, a hyperboloid shape) having a convex continuous curved surface. In this case, the reflection part 12 is coated with a metal film such as aluminum or chromium on the surface of the recess 11b to be a mirror surface. The reflection unit 12 preferably has a rotationally symmetric convex surface such as a spherical mirror, a rotating paraboloidal mirror, or a rotating hyperboloidal mirror.

ケース2は、遮光性の合成樹脂材を適用でき、底壁部21と、円筒状の側壁部22と、を設けてなり、側壁部21に光学部材1が固定されている。また、撮像素子3は、回路基板4上に実装され、ケース2の底壁部21に固定されている。またケース2は、光学部材1が側壁部21の上端側に固定され、開口部分を塞ぐことによって、撮像素子3や回路基板4を保護する空間を設けている。この場合、透明体11の下端側に設けられた取付部11cと接着剤22aを用いて気密に接着することができ、側壁部22には、接着剤22aが良好に塗布されるように、溜り部22bが設けられている。   The case 2 can be made of a light-shielding synthetic resin material, and includes a bottom wall portion 21 and a cylindrical side wall portion 22, and the optical member 1 is fixed to the side wall portion 21. The image pickup device 3 is mounted on the circuit board 4 and fixed to the bottom wall portion 21 of the case 2. The case 2 is provided with a space for protecting the image pickup device 3 and the circuit board 4 by fixing the optical member 1 to the upper end side of the side wall portion 21 and closing the opening. In this case, the attachment portion 11c provided on the lower end side of the transparent body 11 and the adhesive 22a can be used for airtight adhesion, and the side wall portion 22 has a reservoir so that the adhesive 22a can be satisfactorily applied. A portion 22b is provided.

撮像素子3は、CCDあるいはCMOS等の2次元イメージセンサを適用でき、受光部が反射部12と対向するとともに、撮像素子3の光軸上に反射部12の反射面が位置するように設けられる。撮像素子3は、反射鏡2に映し出される反射像を入力し撮像データとして電気的な信号に変換して出力するものである。   The imaging element 3 can be a two-dimensional image sensor such as a CCD or CMOS, and is provided so that the light receiving part faces the reflecting part 12 and the reflecting surface of the reflecting part 12 is positioned on the optical axis of the imaging element 3. . The imaging device 3 inputs a reflected image projected on the reflecting mirror 2, converts it into an electrical signal as imaging data, and outputs it.

回路基板4は、ケース2の底壁部21に固定され、撮像素子3を実装するとともに、撮像素子3と電気的に接続される図示しない駆動手段や画像処理回路などを実装している。この場合、回路基板4は、底壁部21に設けられるものと別に、ケース2外に通信用の駆動回路などを搭載した配線基板(図示しない)が設けられ、回路基板4とこの配線基板とがコード41を介して接続されている。また、回路基板4の駆動電源は、この配線基板から供給されている。   The circuit board 4 is fixed to the bottom wall portion 21 of the case 2, mounts the image pickup device 3, and mounts a driving unit (not shown) and an image processing circuit that are electrically connected to the image pickup device 3. In this case, the circuit board 4 is provided with a wiring board (not shown) on which a communication drive circuit and the like are mounted outside the case 2 in addition to those provided on the bottom wall portion 21. Are connected via a cord 41. The driving power for the circuit board 4 is supplied from this wiring board.

アンテナ5は、Ag,Cuなどの金属材を適用でき、光学部材1の表面に形成される。この場合、アンテナ5は、光学部材1の先端側で撮像範囲外の位置に設けられる。また、アンテナ5は、通信の周波数帯域に応じた長さや形状(例えば、直線状やループ状,平板状)にて形成され、一端が配線6に接続されている。   The antenna 5 can be made of a metal material such as Ag or Cu, and is formed on the surface of the optical member 1. In this case, the antenna 5 is provided at a position outside the imaging range on the distal end side of the optical member 1. The antenna 5 is formed in a length and shape (for example, a linear shape, a loop shape, and a flat plate shape) corresponding to a communication frequency band, and one end is connected to the wiring 6.

配線6は、ITO(Indium Tin Oxide)などの透明導電膜を適用でき、透明体11の表面にコーティングすることによって形成される。配線6の一端は、アンテナ5と重なるように光学部材1の先端側まで形成されて導電性接着部材を介してアンテナ5と接続され、もう一端は、取付部11cの下端部のケース2内まで形成されて、導電性接着部材を用いて接続されるコード42を介して、回路基板4と接続される。この場合、配線6は、ケース2と取付部11cとの接合箇所に保持されたコード42と導電性接着部材を用いて接続され、コード42とこのコード42に接続された回路基板4を介して、通信用の駆動回路から出力される通信信号(例えば、撮像データ)をアンテナ5へ伝達している。   The wiring 6 can be a transparent conductive film such as ITO (Indium Tin Oxide), and is formed by coating the surface of the transparent body 11. One end of the wiring 6 is formed up to the tip end side of the optical member 1 so as to overlap the antenna 5, and is connected to the antenna 5 through the conductive adhesive member, and the other end is in the case 2 at the lower end portion of the mounting portion 11c. It is formed and connected to the circuit board 4 via a cord 42 connected using a conductive adhesive member. In this case, the wiring 6 is connected to the cord 42 held at the joint between the case 2 and the mounting portion 11c using a conductive adhesive member, and the cord 42 and the circuit board 4 connected to the cord 42 are connected. A communication signal (for example, imaging data) output from the communication drive circuit is transmitted to the antenna 5.

キャップ7は、遮光性の合成樹脂材を適用でき、反射部12やアンテナ5を覆うようにして、光学部材1の先端側に設けられる。キャップ7は、反射部12やアンテナ5を保護するとともに、入射面11aの一部を塞ぐように形成することによって、撮像範囲外の余計な光の入射を制限することができる。   The cap 7 can be made of a light-shielding synthetic resin material, and is provided on the distal end side of the optical member 1 so as to cover the reflecting portion 12 and the antenna 5. The cap 7 protects the reflection part 12 and the antenna 5 and can be formed so as to block a part of the incident surface 11a, thereby restricting the incidence of extra light outside the imaging range.

かかる撮像装置Aは、周囲光が入射する入射面11aを有する透明体1と透明体11から入射した前記周囲光を反射させる反射部12とを設けてなる光学部材1と、反射部12によって反射された前記周囲光を撮像する撮像素子3と、撮像素子3によって得られる撮像データを送信可能なアンテナ5と、を備えてなる。   The image pickup apparatus A is reflected by the reflection unit 12 and the optical member 1 provided with the transparent body 1 having the incident surface 11 a on which the ambient light is incident and the reflection unit 12 that reflects the ambient light incident from the transparent body 11. And an antenna 5 that can transmit image data obtained by the image sensor 3.

したがって、撮像データを無線通信するためのアンテナ5を搭載した撮像装置Aとなるため、撮像装置Aを設置する際に、アンテナの設置位置を別途選択して取り付ける必要がなく、簡単な作業にて設置することができる。   Therefore, since the imaging apparatus A is equipped with the antenna 5 for wirelessly communicating imaging data, there is no need to separately select and install the antenna installation position when installing the imaging apparatus A. Can be installed.

また、アンテナ5は、入射面11a以外であり、かつ光学部材1の先端側に設けられてなることによって、無線通信の障害物が少ない場所にアンテナを設けることができるため、良好に通信信号を送信することができるだけでなく、撮像装置の視界の妨げとならない構成となる。   In addition, since the antenna 5 is provided on the tip side of the optical member 1 other than the incident surface 11a, the antenna can be provided in a place where there are few obstacles for wireless communication, so that the communication signal can be satisfactorily transmitted. In addition to being able to transmit, the configuration does not hinder the field of view of the imaging apparatus.

また、アンテナ5は、透明体11の入射面11aに形成された透光性の配線6と接続されてなることによって、撮像装置の視界を妨げることなく、通信信号をアンテナ5へ伝えることができる。   Further, the antenna 5 is connected to the translucent wiring 6 formed on the incident surface 11a of the transparent body 11, so that a communication signal can be transmitted to the antenna 5 without hindering the field of view of the imaging device. .

なお、本発明の実施の形態では、上述した撮像装置Aを例に挙げて説明したが、本発明はこれに限定されるものではなく、その構成は同様の効果が得られるものであればよく、例えば、上述したアンテナ5を設けなくとも、透明体の入射面に形成される透光性のアンテナ(上述の配線6と同様の透明導電膜)を通信の周波数帯域に対応した長さや形状にパターン形成することによって、通信することができる。   In the embodiment of the present invention, the above-described imaging apparatus A has been described as an example. However, the present invention is not limited to this, and the configuration may be any as long as the same effect can be obtained. For example, even if the above-described antenna 5 is not provided, a translucent antenna (a transparent conductive film similar to the above-described wiring 6) formed on the incident surface of the transparent body has a length and shape corresponding to the communication frequency band. Communication can be performed by forming a pattern.

また、上述の実施の形態では、撮像素子3による撮像データを送信するためのアンテナ5として例に挙げて説明したが、例えば、別の信号を送受信するアンテナとしてこれを兼用することも考えられる。   In the above-described embodiment, the antenna 5 for transmitting imaging data by the imaging element 3 has been described as an example. However, for example, it may be used as an antenna that transmits and receives another signal.

また、上述の実施の形態では、中実の透明体11を例に挙げて説明した、空洞の透明体(円筒状の透明体)を用いてもよい。また、鮮明な撮像データを得るために、反射部と撮像手段との間に、焦点補正用のレンズや色収差補正用のレンズを介在するなどの構成も考えられる。   In the above-described embodiment, a hollow transparent body (cylindrical transparent body) described using the solid transparent body 11 as an example may be used. In order to obtain clear imaging data, a configuration in which a lens for focus correction or a lens for chromatic aberration correction is interposed between the reflection unit and the imaging means is also conceivable.

本発明の実施の形態における撮像装置を断面にて示す図。The figure which shows the imaging device in embodiment of this invention in a cross section.

符号の説明Explanation of symbols

1 光学部材
11 透明体
11a 入射面
12 反射部
3 撮像素子(撮像手段)
6 配線
DESCRIPTION OF SYMBOLS 1 Optical member 11 Transparent body 11a Incident surface 12 Reflecting part 3 Image sensor (imaging means)
6 Wiring

Claims (4)

周囲光が入射する入射面を有する透明体と前記透明体から入射した前記周囲光を反射させる反射部とを設けてなる光学部材と、前記反射部によって反射された前記周囲光を撮像する撮像手段と、少なくとも前記撮像手段によって得られる撮像データを送信可能なアンテナと、を備えてなることを特徴とする撮像装置。   An optical member provided with a transparent body having an incident surface on which ambient light is incident and a reflection section that reflects the ambient light incident from the transparent body, and an imaging unit that images the ambient light reflected by the reflection section And an antenna capable of transmitting at least imaging data obtained by the imaging means. 前記アンテナは、前記入射面以外であり、かつ前記光学部材の先端側に設けられてなることを特徴とする請求項1に記載の撮像装置。   The imaging apparatus according to claim 1, wherein the antenna is provided on a tip side of the optical member other than the incident surface. 前記アンテナは、前記透明体の入射面に形成された透光性の配線と接続されてなることを特徴とする請求項2に記載の撮像装置。   The imaging apparatus according to claim 2, wherein the antenna is connected to a light-transmitting wiring formed on an incident surface of the transparent body. 前記アンテナは、前記透明体の入射面に形成される透光性の部材からなることを特徴とする請求項1に記載の撮像装置。
The imaging apparatus according to claim 1, wherein the antenna is made of a translucent member formed on an incident surface of the transparent body.
JP2005312390A 2005-10-27 2005-10-27 Imaging device Expired - Fee Related JP4725723B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6320971A (en) * 1986-07-15 1988-01-28 Sony Corp Monitoring camera device
JP2001136014A (en) * 1999-11-04 2001-05-18 Ricoh Elemex Corp Transparent conductor antenna and radio unit provided with the same
JP2002053080A (en) * 2000-06-01 2002-02-19 Nippon Lsi Card Co Ltd Device and system for monitoring internal and external situation of automobile, and safe driving attesting method using it

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6320971A (en) * 1986-07-15 1988-01-28 Sony Corp Monitoring camera device
JP2001136014A (en) * 1999-11-04 2001-05-18 Ricoh Elemex Corp Transparent conductor antenna and radio unit provided with the same
JP2002053080A (en) * 2000-06-01 2002-02-19 Nippon Lsi Card Co Ltd Device and system for monitoring internal and external situation of automobile, and safe driving attesting method using it

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