JPH08201706A - Endoscope device - Google Patents
Endoscope deviceInfo
- Publication number
- JPH08201706A JPH08201706A JP7142113A JP14211395A JPH08201706A JP H08201706 A JPH08201706 A JP H08201706A JP 7142113 A JP7142113 A JP 7142113A JP 14211395 A JP14211395 A JP 14211395A JP H08201706 A JPH08201706 A JP H08201706A
- Authority
- JP
- Japan
- Prior art keywords
- endoscope
- observation
- objective optical
- image
- tip
- 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
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、１つの固体撮像素子を
内蔵した内視鏡に接続される先端光学アダプタを有する
内視鏡装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope apparatus having a tip optical adapter connected to an endoscope having one solid-state image pickup element built therein.
【０００２】[0002]
【従来の技術】近年、細長の挿入部を体腔内に挿入する
ことにより、体腔内臓器などを観察したり、必要に応じ
て処置具チャンネル内に挿通した処置具を用いて各種治
療・処置のできる内視鏡が広く利用されている。また、
これら内視鏡は、医療用のみならず工業用においてもボ
イラや機械及び化学プラントなどの管内、或いは、エン
ジン内部の観察及び検査などに用いられている。2. Description of the Related Art In recent years, by inserting an elongated insertion portion into a body cavity, an organ in the body cavity can be observed and various treatments and treatments can be performed by using a treatment instrument inserted into a treatment instrument channel as necessary. The endoscope that can be used is widely used. Also,
These endoscopes are used not only for medical purposes but also for industrial purposes for observing and inspecting the inside of pipes of boilers, machines and chemical plants, or the inside of engines.
【０００３】上述のように用いられる内視鏡には挿入部
の先端部に電荷結合素子（以下ＣＣＤと記載）などの撮
像素子を配設し、この撮像素子に結像した内視鏡像をモ
ニタ画面に映し出して観察を行う電子内視鏡がある。In the endoscope used as described above, an image pickup device such as a charge-coupled device (hereinafter referred to as CCD) is arranged at the tip of the insertion portion, and the endoscope image formed on this image pickup device is monitored. There is an electronic endoscope that is displayed on the screen for observation.
【０００４】医療用の電子内視鏡の中には内視鏡挿入部
に内蔵した１つのＣＣＤ上に２つの対物光学系で得た像
を結像させて立体視観察を行うことができるようにした
立体視内視鏡が特開昭６４−２６８１３号公報や米国特
許ＵＳＰ５，１２２，６５０号に示されている。[0004] In a medical electronic endoscope, stereoscopic observation can be performed by forming images obtained by two objective optical systems on one CCD built in an endoscope insertion portion. Such a stereoscopic endoscope is disclosed in Japanese Patent Laid-Open No. 64-26813 and US Pat. No. 5,122,650.
【０００５】また、特開平１−１９７７１６号公報には
倍率の異なる２つの対物光学系を配設し、それぞれの対
物光学系でとらえた観察像をそれぞれの対物光学系に対
応するＣＣＤ上に結像させることで、通常の観察画像と
拡大画像との２つの画像観察が行えるいわゆるテレ／ワ
イド用の内視鏡が示されている。Further, in Japanese Patent Laid-Open No. 1-197716, two objective optical systems having different magnifications are provided, and an observation image captured by each objective optical system is formed on a CCD corresponding to each objective optical system. There is shown a so-called tele / wide endoscope capable of observing two images, a normal observation image and a magnified image, by forming an image.
【０００６】一方、工業用の電子内視鏡では、従来より
先端光学アダプタ式のものが公知であり、この先端光学
アダプタには用途に対応する１種類の対物光学系が配設
されていた。On the other hand, as an industrial electronic endoscope, a tip optical adapter type is conventionally known, and this tip optical adapter is provided with one type of objective optical system corresponding to the application.
【０００７】また、工業用分野で用いられる工業用内視
鏡では、対物光学系にズーム機能を持たせたものや、直
視／側視を手元操作で切り換えることが可能な、いわゆ
るパンビュー機能のニーズが大きかった。Further, in an industrial endoscope used in the industrial field, an objective optical system having a zoom function or a so-called pan-view function capable of switching direct view / side view by hand operation is used. The needs were great.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、前記工
業内視鏡の先端部にパンビュー機能を行うための機構を
設ける場合、内視鏡先端部が太径になるばかりでなく、
構造が複雑でコストアップの要因となっていた。However, when a mechanism for performing a pan view function is provided at the tip of the industrial endoscope, not only does the tip of the endoscope have a large diameter,
The structure was complicated and it was a factor of cost increase.
【０００９】また、前記特開昭６４−２６８１３号公報
や米国特許ＵＳＰ５，１２２，６５０号に示された立体
視観察を行うことのできる立体視内視鏡及び特開平１−
１９７７１６号公報に示されたテレ／ワイドが行える内
視鏡は、いずれも立体視観察専用あるいはテレ／ワイド
専用の内視鏡であった。Further, a stereoscopic endoscope capable of performing stereoscopic observation as disclosed in the above-mentioned Japanese Patent Laid-Open No. 64-26813 and US Pat. No. 5,122,650 and Japanese Patent Laid-Open No.
The endoscopes capable of tele / wide viewing disclosed in Japanese Patent Publication No. 197716 are all dedicated to stereoscopic observation or tele / wide.
【００１０】さらに、前記ＣＣＤ上に２つの対物光学系
で得た像を結像させて立体視観察を行う内視鏡では通
常、立体観察用に一対の光学系が用いられるため、２つ
の光学系のＦナンバー（明るさ／絞りの値）が同じであ
り、両光学系に対して共通の照明光を送っていた。つま
り、光源からライトガイドを通して対象物を照射する照
明光の光量をそれぞれの光学系に対応させて調節する必
要はなかったが、前記それぞれの対物光学系でとらえた
観察像をそれぞれの対物光学系に対応するＣＣＤ上に結
像させテレ／ワイドが行える内視鏡では倍率の異なる２
つの光学系に対して共通の光量の照明をしたのではそれ
ぞれの光学系に対して適正な明るさの画像が得られない
ので、それぞれの光学系に対して適切な光量の照明光を
調節し供給する必要があった。Further, in an endoscope for performing stereoscopic observation by forming images obtained by two objective optical systems on the CCD, a pair of optical systems are usually used for stereoscopic observation, and thus two optical systems are used. The system F-numbers (brightness / aperture value) were the same, and common illumination light was sent to both optical systems. That is, it was not necessary to adjust the light amount of the illumination light that illuminates the object from the light source through the light guide in correspondence with each optical system, but the observation image captured by each of the objective optical systems should be adjusted. With an endoscope that can be tele / wide imaged on a CCD corresponding to
If you illuminate two optical systems with a common amount of light, you will not be able to obtain an image with appropriate brightness for each optical system, so adjust the amount of illumination light that is appropriate for each optical system. Had to supply.
【００１１】本発明は上記事情に鑑みてなされたもので
あり、１つの固体撮像素子を備えた内視鏡で通常の観察
の他に、立体視観察やテレ／ワイドの２つの画像観察あ
るいはパンビューなど種々の機能を簡単な構成で、適正
な明るさで観察可能な内視鏡装置を提供することを目的
としている。The present invention has been made in view of the above circumstances, and in addition to normal observation with an endoscope having one solid-state image pickup device, stereoscopic observation, two image observations of tele / wide or panning. It is an object of the present invention to provide an endoscopic device capable of observing various functions such as a view with a simple structure and appropriate brightness.
【００１２】[0012]
【課題を解決するための手段】本発明の内視鏡装置は、
１つの固体撮像素子を内蔵した内視鏡の先端側に接続さ
れる先端光学アダプタを有する内視鏡装置であって、前
記内視鏡に着脱自在な先端光学アダプタに同一または異
なる複数の対物光学系を設けている。The endoscope apparatus of the present invention comprises:
An endoscope apparatus having a tip optical adapter connected to a tip side of an endoscope having one solid-state image pickup element, wherein a plurality of objective optics which are the same or different from each other are attached to the tip optical adapter. The system is set up.
【００１３】[0013]
【作用】この構成によれば、内視鏡の先端部に立体視観
察用，テレ／ワイド用，パンビュー用などの機能を有す
る対物光学系を備えた先端光学アダプタを適宜接続する
ことによって、各先端光学アダプタに対応した観察が行
える。According to this structure, by appropriately connecting the distal end optical adapter having the objective optical system having the functions of stereoscopic observation, tele / wide, and pan view, to the distal end of the endoscope, Observation can be performed corresponding to each tip optical adapter.
【００１４】[0014]
【実施例】以下、図面を参照して本発明の実施例を説明
する。図１ないし図９は本発明の一実施例に係り、図１
は内視鏡装置の概略構成を示す図、図２は１つの対物光
学系で構成した先端光学アダプタ及び内視鏡先端部の構
成を示す断面図、図３は図２の先端光学アダプタの正面
図、図４は２つの対物光学系で構成した先端光学アダプ
タ及び内視鏡先端部の構成を示す断面図、図５は図４の
先端光学アダプタの正面図，図６は２つの対物光学系で
構成した先端光学アダプタの別の構成を示す正面図、図
７は図６のＩ―Ｉ断面図、図８は２つの対物光学系で構
成した先端光学アダプタの他の構成を示す断面図、図９
はその他の構成の先端光学アダプタを内視鏡先端部に接
続した内視鏡装置の概略構成を示す図である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 9 relate to an embodiment of the present invention.
2 is a diagram showing a schematic configuration of an endoscope apparatus, FIG. 2 is a sectional view showing a configuration of a distal end optical adapter and an endoscope distal end portion configured by one objective optical system, and FIG. 3 is a front view of the distal end optical adapter of FIG. FIG. 4 is a cross-sectional view showing the configuration of a tip optical adapter and an endoscope tip portion formed of two objective optical systems, FIG. 5 is a front view of the tip optical adapter of FIG. 4, and FIG. 6 is two objective optical systems. FIG. 7 is a front view showing another configuration of the tip optical adapter configured in FIG. 7, FIG. 7 is a cross-sectional view taken along the line II of FIG. 6, and FIG. 8 is a cross-sectional view showing another configuration of the tip optical adapter configured by two objective optical systems. Figure 9
FIG. 8 is a diagram showing a schematic configuration of an endoscope apparatus in which a tip optical adapter having another configuration is connected to a tip portion of an endoscope.
【００１５】図１に示すように内視鏡装置１は内視鏡
２，この内視鏡２に内蔵した図示しないライトガイドケ
ーブルに照明光を供給する光源装置３，前記内視鏡２に
内蔵した後述する電荷結合素子（以下ＣＣＤと記載）を
駆動制御及びＣＣＤに結像して光電変換された電気信号
を画像信号に生成する制御装置４及びこの制御装置４で
生成された被写体像の画像信号を表示するＴＶモニタ５
などで構成されている。As shown in FIG. 1, the endoscope apparatus 1 is an endoscope 2, a light source apparatus 3 for supplying illumination light to a light guide cable (not shown) incorporated in the endoscope 2, and is incorporated in the endoscope 2. A control device 4 for driving and controlling a charge-coupled device (to be referred to as a CCD hereinafter) described later and for generating an electric signal photoelectrically converted into an image signal on the CCD, and an image of a subject image generated by the control device 4. TV monitor 5 displaying signals
Etc.
【００１６】前記内視鏡２は、後述する先端光学アダプ
タ３０が着脱自在に接続可能でＣＣＤを１つ内蔵した先
端部２１と、細長で可撓性を有する湾曲部２２及び軟性
部２３で構成される挿入部２４と、この挿入部２４の手
元側にあって術者が把持する操作部２５と、この操作部
２５から延出してライトガイドケーブルや信号ケーブル
を内蔵する可撓性のユニバーサルコード２６と、このユ
ニバーサルコード２６の端部に設けられたコネクタ２７
などにより構成されている。The endoscope 2 is composed of a distal end portion 21 into which a distal end optical adapter 30 described later is detachably connectable and has one built-in CCD, an elongated flexible portion 22 and a flexible portion 23. Insertion section 24, an operation section 25 on the hand side of the insertion section 24 which is grasped by an operator, and a flexible universal cord extending from the operation section 25 and incorporating a light guide cable or a signal cable. 26 and a connector 27 provided at the end of the universal cord 26
It is composed of.
【００１７】このコネクタ２７には光源装置３に接続さ
れるライトガイドコネクタ２８が設けられており、この
ライトガイドコネクタ２８を介して内視鏡挿入部２４の
先端部分まで照明光が伝送されるようになっている。ま
た、前記コネクタ２７には制御装置４に接続するための
電気接点を備えたＥＬコネクタ２９が設けられており、
内視鏡挿入部２４の先端部２１に配設したＣＣＤで光電
変換した被写体像の電気信号が信号ケーブルを通して制
御装置４に導かれるようになっている。The connector 27 is provided with a light guide connector 28 connected to the light source device 3, and the illumination light is transmitted to the tip portion of the endoscope insertion portion 24 via the light guide connector 28. It has become. Further, the connector 27 is provided with an EL connector 29 having electric contacts for connecting to the control device 4,
An electric signal of a subject image photoelectrically converted by a CCD provided at the distal end portion 21 of the endoscope insertion portion 24 is guided to the control device 4 through a signal cable.
【００１８】なお、内視鏡２に接続される光源装置３，
制御装置４，ＴＶモニター５は図１に示したような別体
ではなく、必要に応じ各々の装置を一体的に構成したも
のであってもよい。The light source device 3, which is connected to the endoscope 2,
The control device 4 and the TV monitor 5 may not be separate bodies as shown in FIG. 1, but may be configured by integrating the respective devices as needed.
【００１９】以下、図を参照して内視鏡先端部２１に着
脱自在な先端光学アダプタの構成について説明する。図
２及び図３は第１実施例の先端光学アダプタ３０Ａであ
り、前記内視鏡先端部２１の内部には１つのＣＣＤ４１
及びＩＣ４２などの電気部品や信号ケーブル４３をＣＣ
Ｄ背面からケーブル接続部まで接着剤で一体的に封止し
て成形した撮像ユニット４４とライトガイド４５とが配
設されている。前記ライトガイド４５は、内視鏡先端部
先端側で二股に分岐して図３に示すように先端光学アダ
プタ３０Ａに設けた２つの照明光学系３３，３３に臨ま
れるようになっている。また、内視鏡先端部２１の外周
面にはアダプタ着脱用ねじ４６が固定されている。な
お、符合４７は先端光学アダプタ３０の光学系と内視鏡
２の光学系とが対設するように位置決めを行う位置決め
溝である図に示す先端光学アダプタ３０Ａは、前記内視
鏡先端部２１に内蔵した１つのＣＣＤ４１に１つの被写
体像が結像するように対物光学系３１を設けた通常観察
用の先端光学アダプタ３０Ａである。前記先端光学アダ
プタ３０Ａの硬性部３２には対物光学系３１及び２つの
照明光学系３３，３３が内設されると共に、この硬性部
３２の手元側内周面には内視鏡先端部２１に着脱自在に
接続するための接続手段としてねじ部３４が形成してあ
る。なお、符号３５は前記位置決め溝４７に配設される
位置決めピンである上述の先端光学アダプタ３０Ａと内
視鏡先端部２１とは、前記内視鏡先端部２１の外周面に
設けたアダプタ着脱用ねじ４６と先端光学アダプタ３０
Ａの内周面に形成したネジ部３４とを螺合することで一
体的に接続される。このとき、前記位置決め溝４７に位
置決めピン３５が配設されることにより、ＣＣＤ４１の
光軸中心と対物光学系３２の光軸中心とが一致して通常
の内視鏡画像を得て内視鏡観察を行う内視鏡２が構成さ
れる。The structure of the distal end optical adapter that can be detachably attached to the endoscope distal end portion 21 will be described below with reference to the drawings. 2 and 3 show the tip optical adapter 30A of the first embodiment, and one CCD 41 is provided inside the endoscope tip 21.
CC and electrical parts such as IC 42 and signal cable 43
An image pickup unit 44 and a light guide 45, which are integrally sealed and molded with an adhesive, are arranged from the rear surface D to the cable connection portion. The light guide 45 is bifurcated on the distal end side of the endoscope to face the two illumination optical systems 33, 33 provided on the distal end optical adapter 30A as shown in FIG. Further, an adapter attaching / detaching screw 46 is fixed to the outer peripheral surface of the endoscope distal end portion 21. The reference numeral 47 is a positioning groove for performing positioning so that the optical system of the distal end optical adapter 30 and the optical system of the endoscope 2 face each other. The distal end optical adapter 30A shown in the drawing is the endoscope distal end portion 21. This is a front-end optical adapter 30A for normal observation in which an objective optical system 31 is provided so that one subject image is formed on one CCD 41 built in. An objective optical system 31 and two illumination optical systems 33, 33 are internally provided in the rigid portion 32 of the distal end optical adapter 30A, and the endoscope distal end portion 21 is provided on the inner peripheral surface on the proximal side of the rigid portion 32. A screw portion 34 is formed as a connecting means for detachably connecting. Reference numeral 35 is a positioning pin disposed in the positioning groove 47, and the above-mentioned tip optical adapter 30A and the endoscope tip portion 21 are for attaching and detaching an adapter provided on the outer peripheral surface of the endoscope tip portion 21. Screw 46 and tip optical adapter 30
The screw portion 34 formed on the inner peripheral surface of A is screwed to be integrally connected. At this time, by disposing the positioning pin 35 in the positioning groove 47, the center of the optical axis of the CCD 41 and the center of the optical axis of the objective optical system 32 coincide with each other to obtain a normal endoscopic image to obtain an endoscope. An endoscope 2 for observing is configured.
【００２０】図４及び図５を参照して別の構成の先端光
学アダプタ３０を説明する。図に示す第２実施例の先端
光学アダプタ３０Ｂは、前記内視鏡先端部２１に内蔵し
た１つのＣＣＤ４１に２つの被写体像が結像するように
２つの対物光学系３６，３７を設けたものであり、この
先端光学アダプタ３０Ｂの硬性部３２には対物光学系３
６，３７と２つの照明光学系３３，３３とが内設されて
いる。なお、前記対物光学系３６，３７は、同一機能の
光学系であっても、異なる機能の光学系であってもよ
い。A tip optical adapter 30 having another structure will be described with reference to FIGS. 4 and 5. The tip optical adapter 30B of the second embodiment shown in the figure is provided with two objective optical systems 36 and 37 so that two subject images are formed on one CCD 41 built in the endoscope tip 21. The objective optical system 3 is attached to the rigid portion 32 of the tip optical adapter 30B.
6, 37 and two illumination optical systems 33, 33 are internally provided. The objective optical systems 36 and 37 may have the same function or different functions.
【００２１】まず、２つの対物光学系３６，３７の機能
が異なるものについて説明する。図に示す先端光学アダ
プタ３０Ｂに設けた対物光学系３６と対物光学系３７と
は例えば、観察深度と明るさとが異なるものであり、対
物光学系３６は近点にピントを合わせて且つ絞りを絞っ
て構成したものであり、対物光学系３７は遠点にピント
を合わせて且つ絞りを開いて構成したものである。その
他の構成は前記第１実施例の先端光学アダプタの構成と
同様であり、同部材には同符号を付して説明を省略す
る。First, the two objective optical systems 36 and 37 having different functions will be described. The objective optical system 36 and the objective optical system 37 provided in the tip optical adapter 30B shown in the figure have, for example, different observation depth and brightness, and the objective optical system 36 focuses on a near point and narrows the aperture. The objective optical system 37 is configured by focusing on the far point and opening the diaphragm. Other configurations are the same as the configurations of the tip optical adapter of the first embodiment, and the same reference numerals are given to the same members and the description thereof is omitted.
【００２２】このため、前記先端光学アダプタ３０Ｂを
内視鏡先端部２１に接続することによって、近点の被検
体の観察を対物光学系３６を用いて行い、遠点の被検体
の観察を対物光学系３７を用いて行うことによって近点
から遠点までの観察が行える内視鏡が構成される。な
お、前記先端光学アダプタ３０Ｂは、観察深度と明るさ
とが異なるものに限定されるものではなく、例えば画角
が異なるものであってもよい。この場合、対物光学系３
６の画角を例えば３０°に設定した狭角の望遠仕様と
し、対物光学系３７の画角を例えば１２０°に設定した
広角のワイド仕様などにする。Therefore, by connecting the distal end optical adapter 30B to the endoscope distal end portion 21, observation of the subject at the near point is performed using the objective optical system 36, and observation of the subject at the far point is performed by the objective. By using the optical system 37, an endoscope capable of observing from a near point to a far point is configured. The tip optical adapter 30B is not limited to one having a different observation depth and brightness, and may have a different angle of view, for example. In this case, the objective optical system 3
The angle of view of 6 is set to, for example, a narrow-angle telephoto specification set to 30 °, and the angle of view of the objective optical system 37 is set to, for example, a wide-angle wide specification set to 120 °.
【００２３】このことにより、観察を行う場合にはま
ず、対物光学系３７で広範囲の画像を観察した後に、詳
細に拡大して観察したい所を対物光学系３６でズームレ
ンズを用いたようにテレ／ワイドの観察を行うことがで
きる。このとき、照明光学系３３，３３に配設される照
明レンズをそれぞれ対物光学系３６，３７の仕様に対応
させて狭角用、広角用として構成することにより、対物
光学系３６，３７を用いて更に効果的な観察を行うこと
ができる。また、狭角仕様の前記対物光学系３６をター
ビン観察に使用し、広角仕様の対物光学系３７をパイプ
観察に使用するというような使い方もできる。As a result, when performing observation, first, after observing a wide range of images with the objective optical system 37, the objective optical system 36 uses a zoom lens as in the case where a zoom lens is used at a place where it is desired to magnify in detail. / Wide observation can be performed. At this time, the illumination optical systems 33, 33 are used for the narrow-angle and wide-angle configurations according to the specifications of the objective optical systems 36, 37. Therefore, more effective observation can be performed. The narrow-angle objective optical system 36 can be used for turbine observation, and the wide-angle objective optical system 37 can be used for pipe observation.
【００２４】また、図６及び図７に示すように一方の対
物光学系及び照明光学系と他方の対物光学系及び照明光
学系との視野方向を異なるように組み合わせて先端光学
アダプタ３０Ｃを形成してもよい。Further, as shown in FIGS. 6 and 7, one of the objective optical system and the illumination optical system and the other objective optical system and the illumination optical system are combined so as to have different visual field directions to form a tip optical adapter 30C. May be.
【００２５】図に示すように一方の対物光学系３８の観
察面が内視鏡の軸方向を向いた直視型とし、他方の対物
光学系３９の観察面が内視鏡の軸方向に対して直角方向
を向いた側視型とし、これら対物光学系３８，３９の仕
様に対応させて照明光学系３３，３３をそれぞれ直視型
用と、側視型用とにしている。その他の構成は前記第１
実施例の先端光学アダプタの構成と同様であり、同部材
には同符号を付して説明を省略する。As shown in the figure, the observation surface of one objective optical system 38 is of a direct-view type in which the observation surface is oriented in the axial direction of the endoscope, and the observation surface of the other objective optical system 39 is in the axial direction of the endoscope. The side-view type is oriented in the right-angled direction, and the illumination optical systems 33, 33 are used for the direct-view type and the side-view type, respectively, according to the specifications of the objective optical systems 38, 39. Other configurations are the same as the first
The configuration is the same as that of the tip optical adapter of the embodiment, and the same members are denoted by the same reference numerals and description thereof is omitted.
【００２６】このため、前記先端光学アダプタ３０Ｃを
内視鏡先端部２１に接続することによって、内視鏡先端
部に位置する被検体の観察を直視型の対物光学系３８を
用いて行い、内視鏡先端部側面に位置する被検体の観察
を側視型の対物光学系３９を用いて行うことによって、
パンビュー機能を有するように直視と側視の両方向の観
察が行える内視鏡が構成される。Therefore, by connecting the distal end optical adapter 30C to the endoscope distal end portion 21, the object located at the endoscope distal end portion is observed using the direct-viewing type objective optical system 38. By observing the subject located on the side surface of the distal end portion of the endoscope using the side-view type objective optical system 39,
An endoscope that has a pan-view function and is capable of observing in both direct and side views is configured.
【００２７】さらに、図８に示すように先端光学アダプ
タ３０Ｄの対物光学系４０Ａ，４０Ｂを異なる方向を向
く斜視型としている。この場合の２つの照明光学系３
３，３３も前記対物光学系４０Ａ，４０Ｂに対応した方
向を照明するように形成されている。その他の構成は前
記第１実施例に示した先端光学アダプタの構成と同様で
あり、同部材には同符号を付して説明を省略する。Further, as shown in FIG. 8, the objective optical systems 40A and 40B of the distal end optical adapter 30D are of a perspective type which face different directions. Two illumination optical systems 3 in this case
Reference numerals 3 and 33 are also formed so as to illuminate directions corresponding to the objective optical systems 40A and 40B. Other configurations are the same as those of the tip optical adapter shown in the first embodiment, and the same members are designated by the same reference numerals and the description thereof is omitted.
【００２８】このため、前記先端光学アダプタ３０Ｄを
内視鏡先端部２１に接続することによって、内視鏡先端
部に対して斜めの方向を向く対物光学系４０Ａ，４０Ｂ
を用いて広範囲の画像を得て被検体の観察を行える内視
鏡が構成される。なお、両方の対物光学系を斜視にする
のではなく、一方だけを斜視型にして他方を直視型ある
いは側視型として構成してもよいことはいうまでもな
い。Therefore, by connecting the distal end optical adapter 30D to the endoscope distal end portion 21, the objective optical systems 40A and 40B which are oriented obliquely with respect to the endoscope distal end portion.
An endoscope that can observe a subject by obtaining a wide-range image using the is configured. It goes without saying that both objective optical systems may be configured as a perspective type and the other as a direct-viewing type or a side-viewing type, instead of making both objective optical systems a perspective type.
【００２９】なお、上述で説明したように観察深度と明
るさとが異なる対物光学系を組み合わせて構成した先端
光学アダプタ３０Ｂや、視野方向が異なる対物光学系を
組み合わせて構成した先端光学アダプタ３０Ｃや画角の
異なる対物光学系を組み合わせて構成した先端光学アダ
プタなど、複数の対物光学系を設けて１つのＣＣＤ上に
複数の光学像を結像させて観察画像を得る場合、それぞ
れの対物光学系に対応するように内視鏡先端部の先端側
で二股に分岐させて配置されているライトガイドから同
じ光量の照明光を出射していたのでは、一方の対物光学
系で得られる観察画像と他方の対物光学系で得られる観
察画像との間に、それぞれの対物光学系のＦナンバーの
違いなどによる差が生じて、適正な明るさの観察画像を
得られなくなる。このため、１つのＣＣＤ上に複数の対
物光学系を介して結像させた複数の光学像から得られる
それぞれの観察画像の明るさを適正な明るさにする必要
がある。As described above, the tip optical adapter 30B constructed by combining objective optical systems having different observation depths and brightness, the tip optical adapter 30C constructed by combining objective optical systems having different viewing directions, and an image. When a plurality of objective optical systems such as a tip optical adapter configured by combining objective optical systems with different angles are provided and a plurality of optical images are formed on one CCD to obtain an observation image, each objective optical system is used. The same amount of illumination light was emitted from the light guide that is bifurcated on the distal end side of the endoscope distal end so that the observation image obtained by one objective optical system and the other With the observation image obtained by the objective optical system, there will be a difference due to the difference in the F number of each objective optical system, etc., and it will not be possible to obtain an observation image with appropriate brightness. Therefore, it is necessary to set the brightness of each observed image obtained from the plurality of optical images formed on one CCD via the plurality of objective optical systems to an appropriate brightness.
【００３０】そこで、図９に示すように映像信号の元に
なる信号を取り出すＣＤＳ回路５１と、ＣＣＤ４１の撮
像面を左半分、右半分、または通常の全画面に切換える
画面切換え回路５２と、標準のＴＶ信号を生成する映像
信号処理回路５３と、適正な明るさの観察画像を得るよ
うに光源装置３からライトガイドコネクタ２８に供給さ
れる照明光の光量を制御する制御信号を出力する調光回
路５４と、前記画面切換え回路５２を制御する画面セレ
クター５５とを配設し、この画面セレクター５５に制御
装置４のパネル面に設けた切換スイッチ５６を接続して
制御装置４を構成している。そして、１つのＣＣＤで適
正な明るさの２つの観察画像を得るための光量制御系５
０を、前記制御装置４のＣＤＳ回路５１，画面切換え回
路５２，調光回路５４，画面セレクター５５及び切換ス
イッチ５６で形成している。Therefore, as shown in FIG. 9, a CDS circuit 51 for extracting a signal which is a source of a video signal, a screen switching circuit 52 for switching the image pickup surface of the CCD 41 to the left half, the right half or a normal full screen, and a standard. And a video signal processing circuit 53 for generating a TV signal, and a light control for outputting a control signal for controlling the amount of illumination light supplied from the light source device 3 to the light guide connector 28 so as to obtain an observed image with appropriate brightness. A circuit 54 and a screen selector 55 for controlling the screen switching circuit 52 are provided, and a selector switch 56 provided on the panel surface of the controller 4 is connected to the screen selector 55 to form the controller 4. . Then, a light amount control system 5 for obtaining two observation images of proper brightness with one CCD
0 is formed by the CDS circuit 51, the screen switching circuit 52, the dimmer circuit 54, the screen selector 55 and the changeover switch 56 of the control device 4.
【００３１】すなわち、１つのＣＣＤ上に結像した光学
像から得られる観察画像の一方の明るさが適正でない場
合、切換スイッチ５６を操作して明るさが適正でないＣ
ＣＤ４１の撮像面の左半分あるいは右半分のどちらか一
方を選択する。すると、この切換スイッチ５６で選択さ
れた制御信号に基づいて画面セレクター５５ではＣＣＤ
４１の水平方向の画素数をカウントして、撮像面の左半
分のみを表示させるための信号あるいは右半分のみを表
示させるための信号を画面切替回路５２に送り、この画
面切替回路５２で最終的な画面切換え操作を行う。That is, when the brightness of one of the observed images obtained from the optical image formed on one CCD is not appropriate, the changeover switch 56 is operated to cause an incorrect brightness C.
Either the left half or the right half of the image pickup surface of the CD 41 is selected. Then, based on the control signal selected by the changeover switch 56, the screen selector 55 causes the CCD
The number of pixels 41 in the horizontal direction is counted, and a signal for displaying only the left half of the imaging surface or a signal for displaying only the right half is sent to the screen switching circuit 52, and the screen switching circuit 52 finally outputs the signal. Screen switching operation.
【００３２】そして、前記画面切替回路５２によって選
択したＣＣＤ４１の撮像面に結像した光学像の光電変換
した電気信号を調光回路５４へ伝送する。この調光回路
５４では、選択されたＣＣＤ４１の撮像面から送られて
きた光学像の電気信号の輝度情報を基に、光源装置３か
ら出射される照明光の光量調整を行うため、光源装置３
に設けられている例えば絞り羽根（不図示）を駆動する
ための制御信号を生成する。この調光回路５４で生成さ
れた制御信号を光源装置３に出力して絞り羽根の調整を
行う。すると、光源装置３から内視鏡２を介して先端光
学アダプタに設けられているそれぞれの対物光学系に対
応する照明光学系に適正な光量の照明光が供給される。
このことにより、対象物に向かって先端光学アダプタの
照明光学系から出射される照明光の光量がそれぞれの対
物光学系に応じた明るさに適宜調整されるので、１つの
ＣＣＤで適正な明るさの２つの観察画像を得ることがで
きる。Then, the electric signal obtained by photoelectrically converting the optical image formed on the image pickup surface of the CCD 41 selected by the screen switching circuit 52 is transmitted to the dimming circuit 54. In the light control circuit 54, the light amount of the illumination light emitted from the light source device 3 is adjusted on the basis of the brightness information of the electric signal of the optical image sent from the image pickup surface of the selected CCD 41.
A control signal for driving, for example, a diaphragm blade (not shown) provided in the. The control signal generated by the light control circuit 54 is output to the light source device 3 to adjust the diaphragm blades. Then, the light source device 3 supplies the appropriate amount of illumination light to the illumination optical system corresponding to each objective optical system provided in the distal end optical adapter via the endoscope 2.
As a result, the light amount of the illumination light emitted from the illumination optical system of the tip optical adapter toward the object is adjusted appropriately to the brightness corresponding to each objective optical system. It is possible to obtain two observation images of
【００３３】次に、前記２つの対物光学系の機能が同じ
ものについて説明する。前記図４に示したとほぼ同様の
構成の先端光学アダプタに設けられている２つの対物光
学系３６，３７の機能が同じである先端光学アダプタ３
０Ｅの場合、図１０に示すように先端光学アダプタ３０
Ｅを接続した内視鏡２を備えて構成される内視鏡装置１
には画像切換装置６を設けている。Next, an explanation will be given of the case where the two objective optical systems have the same function. A tip optical adapter 3 having the same functions of the two objective optical systems 36 and 37 provided in the tip optical adapter having substantially the same structure as shown in FIG.
In the case of 0E, the tip optical adapter 30 as shown in FIG.
Endoscope device 1 including an endoscope 2 to which E is connected
Is provided with an image switching device 6.
【００３４】このため、前記先端光学アダプタ３０Ｅを
内視鏡先端部２１に接続することによって、画像切換装
置６には対物光学系３６，３７を介してＣＣＤの異なる
位置に撮像された被検体の映像信号が制御装置４を介し
て伝送される。そして、これら対物光学系３６，３７で
とらえた被検体の映像信号をＡ／Ｄ変換器６１，メモリ
６２，画像切換え回路６３，Ｄ／Ａ変換器６４を介して
交互にＴＶモニター５に表示することによって被検部位
の立体像が得られる内視鏡が構成される。Therefore, by connecting the distal end optical adapter 30E to the distal end portion 21 of the endoscope, the image switching device 6 allows the image switching device 6 to detect the subject imaged at different positions on the CCD through the objective optical systems 36 and 37. The video signal is transmitted via the control device 4. Then, the image signals of the subject captured by the objective optical systems 36 and 37 are alternately displayed on the TV monitor 5 via the A / D converter 61, the memory 62, the image switching circuit 63, and the D / A converter 64. As a result, an endoscope that can obtain a stereoscopic image of the region to be examined is configured.
【００３５】このように、内視鏡先端部に着脱自在な先
端光学アダプタを１つの対物光学系で構成したり、２つ
の対物光学系を設け近点から遠点までの観察が行えるも
の、あるいは広範囲の画像と詳細に拡大した画像とでテ
レ／ワイドの観察が行えるもの、直視と側視の両方向を
パンビュー機能を有するように観察が行えるもの、さら
には２つの対物光学系の機能を同じに構成することによ
り、通常の内視鏡観察，テレ／ワイドな観察，パンビュ
ー観察，立体視観察などに対応する内視鏡装置を容易に
構成することができる。As described above, the distal end optical adapter detachably attached to the distal end portion of the endoscope is constructed by one objective optical system, or two objective optical systems are provided to enable observation from a near point to a far point, or Tele / wide observation with a wide-range image and a magnified image in detail, observation with a pan-view function in both the direct-view and side-view directions, and the same two objective optical system functions With such a configuration, it is possible to easily configure an endoscope apparatus that supports ordinary endoscope observation, tele / wide observation, pan-view observation, stereoscopic observation, and the like.
【００３６】また、１つ固体撮像装置を内蔵した内視鏡
は、１台の制御装置，画像切換装置で内視鏡装置が構成
されているので、この構成を換えることなく、通常の観
察の他に、立体視観察や直側／側視などの同時観察、広
角／望遠など同時観察が行える内視鏡装置を安価に構成
することができる。Further, in an endoscope having one built-in solid-state image pickup device, since the endoscope device is composed of one control device and image switching device, it is possible to perform normal observation without changing this structure. In addition, it is possible to inexpensively construct an endoscope apparatus capable of performing stereoscopic observation, simultaneous observation such as direct side / side observation, and simultaneous observation such as wide angle / telephoto observation.
【００３７】なお、上述のように機能の異なる対物光学
系を配設した先端光学アダプタを内視鏡先端部に接続し
た内視鏡で構成される内視鏡装置の制御装置４とＴＶモ
ニター５との間に前記画像切換装置６を配設したり、前
記図９に示した画面切替回路５２や画面セレクター５５
や切換スイッチ５６を備えた制御装置５にすることによ
って、立体観察を容易に行えるばかりでなく、ＴＶモニ
ター５に対物光学系でとらえた画像のどちらか一方だけ
表示したり、別々に交互に表示したりすることなどがで
きる。また、必要に応じて外部スイッチを切り換えるこ
とによって対物光学系でとらえた画像を切り換え表示し
たり、所望のものを選択してＴＶモニター５の中央に表
示させることによって観察画像が見易くなって検査効率
を向上させることができる。さらに、制御装置４とＴＶ
モニター５との間に画像切換装置を配設する代わりに、
制御装置４に画像切換装置６の機能を持たせてもよいこ
とはいうまでもない。また、上述したように１つのＣＣ
Ｄ上に２つの対物光学系を介して像を結像させる場合、
１つのＣＣＤで１つの画像を得る場合よりフレアーなど
の発生が心配される。このため、ＣＣＤカバーガラスに
フレアー防止用のコーティングをしておくことが望まし
い。更に、上述の実施例では複数の対物光学系を２つの
対物光学系として説明してきたが、対物光学系は３つ以
上であってもよい。Incidentally, the control device 4 and the TV monitor 5 of the endoscope apparatus constituted by the endoscope in which the tip optical adapter having the objective optical system having different functions as described above is connected to the tip portion of the endoscope. And the screen switching circuit 52 and the screen selector 55 shown in FIG.
By using the control device 5 equipped with the switch and the switch 56, stereoscopic observation can be easily performed, and only one of the images captured by the objective optical system can be displayed on the TV monitor 5, or they can be displayed alternately. You can do things such as. Also, by switching the external switch as necessary, the images captured by the objective optical system can be switched and displayed, or by selecting a desired one and displaying it in the center of the TV monitor 5, the observed image can be easily viewed and the inspection efficiency can be improved. Can be improved. Furthermore, the control device 4 and the TV
Instead of disposing an image switching device between the monitor 5 and
It goes without saying that the control device 4 may be provided with the function of the image switching device 6. Also, as described above, one CC
When an image is formed on D through two objective optical systems,
The occurrence of flare is more worried than when one image is obtained with one CCD. Therefore, it is desirable to coat the CCD cover glass for flare prevention. Furthermore, although the plurality of objective optical systems have been described as two objective optical systems in the above-described embodiments, the number of objective optical systems may be three or more.
【００３８】次に、図１１を参照して内視鏡内を挿通す
るライトガイドの別の構成を説明する。上述で説明した
ように観察深度と明るさとが異なる対物光学系を組み合
わせて構成した先端光学アダプタ３０Ｂや、視野方向が
異なる対物光学系を組み合わせて構成した先端光学アダ
プタ３０Ｃや画角の異なる対物光学系を組み合わせて構
成した先端光学アダプタなど、複数の対物光学系を設け
て１つのＣＣＤ上に複数の光学像を結像させて観察画像
を得る場合、それぞれの対物光学系に対応するように内
視鏡先端部の先端側で二股に分岐させて配置されている
ライトガイドから同じ光量の照明光を出射していたので
は、一方の対物光学系で得られる観察画像と他方の対物
光学系で得られる観察画像との間に、それぞれの対物光
学系のＦナンバーの違いなどによる差が生じて、適正な
明るさの観察画像を得られなくなる。Next, another structure of the light guide which is inserted through the endoscope will be described with reference to FIG. As described above, the tip optical adapter 30B configured by combining objective optical systems having different observation depths and brightness, the tip optical adapter 30C configured by combining objective optical systems having different viewing directions, and objective optics having different field angles When a plurality of objective optical systems such as a tip optical adapter configured by combining the systems are provided and a plurality of optical images are formed on one CCD to obtain an observation image, the internal optical system must be adapted to each objective optical system. Since the illumination light of the same light quantity was emitted from the light guide that is bifurcated at the tip side of the endoscope tip part, the observation image obtained by one objective optical system and the other objective optical system A difference due to the difference in the F-number of each objective optical system or the like occurs between the obtained observation image and the observation image having an appropriate brightness cannot be obtained.
【００３９】このため、１つのＣＣＤ上に複数の対物光
学系を介して結像させた複数の光学像から得られるそれ
ぞれの観察画像の明るさを適正な明るさにするため、本
実施例では内視鏡７０を以下のように構成している。For this reason, in order to make the brightness of each observed image obtained from a plurality of optical images formed on a CCD through a plurality of objective optical systems appropriate brightness, in this embodiment, The endoscope 70 is configured as follows.
【００４０】図に示すように本実施例の内視鏡７０には
この内視鏡７０の先端部に着脱自在に接続可能な前記先
端光学アダプタに設けられている例えば２つの照明光学
系が臨まれる位置にそれぞれ第１のライトガイド７１及
び第２のライトガイド７２を配設している。As shown in the figure, the endoscope 70 of this embodiment faces, for example, two illumination optical systems provided on the distal end optical adapter detachably connectable to the distal end portion of the endoscope 70. The first light guide 71 and the second light guide 72 are arranged at the respective positions.
【００４１】すなわち、内視鏡７０には前記図４に示し
た先端光学アダプタ３０Ｂの対物光学系３６に対設する
第１の対物光学系７３に対応する第１のライトガイド７
１と、前記先端光学アダプタ３０Ｂの対物光学系３７に
対設する第２の対物光学系７４に対応する第２のライト
ガイド７２とが設けられている。なお、符号７１ａは前
記第１のライトガイド７１の第１の照明レンズであり、
符号７２ａは前記第２のライトガイド７２の第２の照明
レンズである。その他の内視鏡７０の構成は前記内視鏡
２と同様であり、同部材には同符号を付して説明を省略
する。That is, in the endoscope 70, the first light guide 7 corresponding to the first objective optical system 73 opposite to the objective optical system 36 of the distal end optical adapter 30B shown in FIG.
1 and a second light guide 72 corresponding to a second objective optical system 74 opposite to the objective optical system 37 of the tip optical adapter 30B. Reference numeral 71a is a first illumination lens of the first light guide 71,
Reference numeral 72a is a second illumination lens of the second light guide 72. Other configurations of the endoscope 70 are the same as those of the endoscope 2, and the same members are denoted by the same reference numerals and the description thereof will be omitted.
【００４２】前記第１のライトガイド７１及び第２のラ
イトガイド７２は、コネクタ２７ａに設けたライトガイ
ドコネクタ２８ａ，２８ｂを介して光源装置３ａに接続
されるようになっている。この光源装置３ａには前記第
１のライトガイド７１に照明光を供給するための第１の
絞り装置７５ａ，第１の絞り駆動部７６ａ及び第１のラ
ンプ７７ａが設けられると共に、前記第２のライトガイ
ド７２に照明光を供給するための第２の絞り装置７５
ｂ，第２の絞り駆動部７６ｂ及び第２のランプ７７ｂが
設けられている。The first light guide 71 and the second light guide 72 are adapted to be connected to the light source device 3a via the light guide connectors 28a and 28b provided on the connector 27a. The light source device 3a is provided with a first diaphragm device 75a for supplying illumination light to the first light guide 71, a first diaphragm drive unit 76a, and a first lamp 77a, and also the second lamp device 77a. Second diaphragm device 75 for supplying illumination light to the light guide 72
b, a second diaphragm drive unit 76b and a second lamp 77b are provided.
【００４３】上述のように構成した内視鏡７０と光源装
置３ａとを備えた内視鏡装置１で対象物を観察する際、
前記第１のライトガイド７１を伝送されて先端光学アダ
プタの照明光学系から出射された照明光に照らされた対
象物はＣＣＤ４１に光学像を結像し、光電変換された光
学像の電気信号が制御装置４に伝送される。同様に、前
記第２のライトガイド７２を伝送されて先端光学アダプ
タの照明光学系から出射された照明光に照らされた対象
物はＣＣＤ４１に光学像を結像し、光電変換された光学
像の電気信号が制御装置４に伝送される。When observing an object with the endoscope device 1 having the endoscope 70 and the light source device 3a configured as described above,
The object illuminated by the illumination light transmitted from the first light guide 71 and emitted from the illumination optical system of the distal end optical adapter forms an optical image on the CCD 41, and an electrical signal of the photoelectrically converted optical image is generated. It is transmitted to the control device 4. Similarly, the object that is transmitted through the second light guide 72 and illuminated by the illumination light emitted from the illumination optical system of the distal end optical adapter forms an optical image on the CCD 41 and the photoelectrically converted optical image is formed. The electric signal is transmitted to the control device 4.
【００４４】これら光学像の電気信号が伝送される制御
装置４では、前記ＣＣＤ上に結像して得られた光学像の
電気信号の中の輝度情報を基に、光源装置３ａから対象
物に向かって出射される照明光の光量を適正な明るさに
調整するための前記第１の絞り装置７５ａを制御する第
１の絞り駆動部７６ａあるいは前記第２の絞り装置７５
ｂを制御する第２の絞り駆動部７６ｂを駆動する制御信
号が生成される。In the control device 4 to which the electric signals of these optical images are transmitted, the light source device 3a selects an object from the light source device 3a based on the luminance information in the electric signals of the optical images obtained by forming an image on the CCD. The first diaphragm driving unit 76a or the second diaphragm device 75 for controlling the first diaphragm device 75a for adjusting the amount of illumination light emitted toward the appropriate brightness.
A control signal for driving the second diaphragm drive unit 76b that controls b is generated.
【００４５】前記制御装置４で生成された前記第１の絞
り駆動部７６ａあるいは第２の絞り駆動部７６ｂを駆動
させる制御信号は、光源装置３ａに出力され、光源装置
内に備えられている第１の絞り装置７５ａあるいは第２
の絞り装置７５ｂを構成する例えば絞り羽根を適宜調整
し、１つのＣＣＤで得られる複数の観察画像のそれぞれ
の明るさを適正な明るさに調整する。The control signal for driving the first diaphragm driving section 76a or the second diaphragm driving section 76b generated by the control device 4 is output to the light source device 3a and is provided in the light source device. 1 throttling device 75a or second
By appropriately adjusting, for example, diaphragm blades that form the diaphragm device 75b, the brightness of each of the plurality of observation images obtained by one CCD is adjusted to an appropriate brightness.
【００４６】このように、内視鏡に配設されている複数
の対物光学系にそれぞれ対応させてライトガイドを配設
し、対象物に向かってライトガイド及び照明光学系を介
して出射される照明光の光量を、それぞれの対物光学系
で結像させた光学像から得られる電気信号を元に、観察
画像の明るさに対応させて適宜調整することができる。
このことにより、１つのＣＣＤに結像する複数の観察画
像の明るさを適正な明るさにして観察することが可能に
なる。As described above, the light guides are provided so as to correspond to the plurality of objective optical systems provided in the endoscope, and the light guide is emitted toward the object through the light guide and the illumination optical system. The light amount of the illumination light can be appropriately adjusted according to the brightness of the observed image based on the electric signal obtained from the optical image formed by each objective optical system.
As a result, it becomes possible to observe the plurality of observation images formed on one CCD with appropriate brightness.
【００４７】ところで、内視鏡の観察光学系に観察画像
の重力方向を知らしめる指示用鋼球を配設したものがあ
る。この内視鏡を用いて観察を行った場合、観察画像内
に指示用鋼球の像が重なって観察がやり難いという不具
合があった。このため、図１２に示すように２つある対
物光学系８１，８２のうち、一方の対物光学系８２に重
力方向を検出するための重力方向検出手段として微少の
指示用鋼球８３を配置している。このことにより、対物
光学系８１で観察画像を得、対物光学系８２で重力方向
を知ることができるので観察画像が見易くなる。By the way, there is an observation optical system of an endoscope in which an instruction steel ball for indicating the direction of gravity of an observation image is provided. When observation is performed using this endoscope, there is a problem in that the image of the indicating steel ball is overlapped with the observation image, making observation difficult. Therefore, as shown in FIG. 12, of the two objective optical systems 81 and 82, one of the objective optical systems 82 is provided with a minute indicating steel ball 83 as a gravity direction detecting means for detecting the gravity direction. ing. This makes it possible to obtain an observation image with the objective optical system 81 and to know the gravity direction with the objective optical system 82, so that the observation image becomes easy to see.
【００４８】なお、重力方向を示す指示用鋼球８３を入
れる対物光学系８２は特に結像性能を有する必要はな
く、透明な平行平面板の間に挟むようにしても良い。ま
た、重力方向用の画面を観察用の画面より小さくして、
観察が容易な観察画像を得るようにすると良い。The objective optical system 82 in which the indicating steel ball 83 indicating the direction of gravity is inserted does not have to have an image forming performance, and may be sandwiched between transparent plane parallel plates. Also, make the screen for gravity direction smaller than the screen for observation,
It is advisable to obtain an observation image that is easy to observe.
【００４９】［付記］ １．１つの固体撮像素子を内蔵した内視鏡の先端側に接
続される先端光学アダプタを有する内視鏡装置におい
て、前記内視鏡に着脱自在な先端光学アダプタに同一ま
たは異なる複数の対物光学系を設けた内視鏡装置。[Additional Notes] 1. In an endoscope apparatus having a distal end optical adapter connected to the distal end side of an endoscope incorporating one solid-state image pickup element, the same distal end optical adapter can be attached to the endoscope. Or an endoscope apparatus provided with a plurality of different objective optical systems.
【００５０】２．前記内視鏡に単一の対物光学系で構成
した先端光学アダプタが接続可能な付記１記載の内視鏡
装置。2. The endoscope apparatus according to appendix 1, wherein a distal end optical adapter configured with a single objective optical system can be connected to the endoscope.
【００５１】３．前記先端光学アダプタに設ける複数の
対物光学系の視野方向が同じである付記１記載の内視鏡
装置。3. The endoscope apparatus according to appendix 1, wherein a plurality of objective optical systems provided in the distal end optical adapter have the same visual field direction.
【００５２】４．前記先端光学アダプタに設ける複数の
対物光学系の観察深度と絞り値とが互いに異なる付記３
記載の内視鏡装置。4. Appendix 3 The observation depth and the aperture value of the plurality of objective optical systems provided in the tip optical adapter are different from each other.
The endoscopic device described.
【００５３】５．前記先端光学アダプタに設ける複数の
対物光学系の画角が互いに異なる付記３記載の内視鏡装
置。5. The endoscope apparatus according to appendix 3, wherein the plurality of objective optical systems provided in the distal end optical adapter have different angles of view.
【００５４】６．前記先端光学アダプタに設ける複数の
対物光学系が同一である付記３記載の内視鏡装置。6. The endoscope apparatus according to appendix 3, wherein a plurality of objective optical systems provided in the tip optical adapter are the same.
【００５５】７．前記複数の同一の対物光学系を通して
固体撮像素子に結像した被写体像を画像切換装置を介し
てモニタ上に表示することによって立体視観察可能な付
記６記載の内視鏡装置。7. 7. The endoscope apparatus according to appendix 6, which enables stereoscopic observation by displaying a subject image formed on a solid-state image sensor through the same plurality of objective optical systems on a monitor via an image switching device.
【００５６】８．前記先端光学アダプタに設ける複数の
対物光学系の視野方向が互いに異なる付記１記載の内視
鏡装置。8. The endoscope apparatus according to appendix 1, wherein a plurality of objective optical systems provided in the distal end optical adapter have different visual field directions.
【００５７】９．前記先端光学アダプタの一方が直視型
で、他方が側視型である付記８記載の内視鏡装置。9. 9. The endoscope apparatus according to appendix 8, wherein one of the distal end optical adapters is a direct-view type and the other is a side-view type.
【００５８】１０．前記先端光学アダプタの一方が直視
型で、他方が斜視視型である付記８記載の内視鏡装置。10. 9. The endoscope apparatus according to appendix 8, wherein one of the distal end optical adapters is a direct-view type and the other is a perspective-view type.
【００５９】１１．前記先端光学アダプタの対物光学系
が互いに異なる方向を向く斜視型である付記８記載の内
視鏡装置。11. 9. The endoscope apparatus according to appendix 8, wherein the objective optical system of the tip optical adapter is a perspective type that faces different directions.
【００６０】１２．前記先端光学アダプタの対物光学系
の一方に、重力方向を検知する重力方向検出手段を配置
した付記１記載の内視鏡装置。12. The endoscope apparatus according to appendix 1, wherein a gravitational direction detecting means for detecting a gravitational direction is arranged on one of the objective optical systems of the tip optical adapter.
【００６１】１３．前記先端光学アダプタに設けた複数
の対物光学系を介して１つの固体撮像素子の撮像面に結
像する複数の光学像の中から任意の撮像面に結像した光
学像を選択する選択手段を設けた付記１記載の内視鏡装
置。13. Selecting means for selecting an optical image formed on an arbitrary image pickup surface from a plurality of optical images formed on the image pickup surface of one solid-state image pickup device via a plurality of objective optical systems provided in the tip optical adapter. The endoscopic device according to appendix 1, which is provided.
【００６２】１４．前記選択手段を制御装置内に設けた
付記１３記載の内視鏡装置。14. 14. The endoscope apparatus according to appendix 13, wherein the selecting means is provided in a control device.
【００６３】１５．前記選択手段で選択した光学像の光
電変換された電気信号の輝度情報を元に、光源装置から
ライトガイドに出射される照明光の光量を調整する付記
１３記載の内視鏡装置。15. 14. The endoscope device according to appendix 13, which adjusts the light amount of the illumination light emitted from the light source device to the light guide based on the brightness information of the electric signal photoelectrically converted from the optical image selected by the selection unit.
【００６４】１６．前記内視鏡に設けられているライト
ガイドが内視鏡先端部先端側で複数に分岐して配置され
ている付記１ないし付記１２記載の内視鏡装置。16. 13. The endoscope apparatus according to supplementary note 1 to supplementary note 12, wherein a light guide provided in the endoscope is arranged in a plurality of branches on the distal end side of the endoscope distal end portion.
【００６５】１７．前記内視鏡のライトガイドを、この
内視鏡に配設されている複数の対物光学系に対応させて
複数設けた付記１ないし付記１２記載の内視鏡装置。17. 13. The endoscope apparatus according to supplementary note 1 to supplementary note 12, wherein a plurality of light guides of the endoscope are provided so as to correspond to a plurality of objective optical systems arranged in the endoscope.
【００６６】１８．前記内視鏡に設けた複数のライトガ
イドにそれぞれ対応するランプを光源装置に複数設けた
付記１７記載の内視鏡装置。18. 18. The endoscope device according to appendix 17, wherein the light source device is provided with a plurality of lamps respectively corresponding to a plurality of light guides provided in the endoscope.
【００６７】１９．前記光源装置に設けた複数のランプ
からそれぞれのランプに対応する内視鏡のライトガイド
に供給される照明光の光量が独立して制御される付記１
８記載の内視鏡装置。19. Note 1 The amount of illumination light supplied from a plurality of lamps provided in the light source device to the light guide of the endoscope corresponding to each lamp is independently controlled.
8. The endoscope apparatus according to item 8.
【００６８】２０．前記先端光学アダプタに設けた照明
光学系が各々の観察光学系に対応した照明光を照射する
ように形成されている付記１ないし付記１９記載の内視
鏡装置。20. 20. The endoscope apparatus according to supplementary note 1 to supplementary note 19, wherein an illumination optical system provided in the distal end optical adapter is formed so as to emit illumination light corresponding to each observation optical system.
【００６９】[0069]
【発明の効果】以上説明したように本発明によれば、１
つの固体撮像素子を備えた内視鏡で通常の観察の他に、
立体視観察やテレ／ワイドの２つの画像観察あるいはパ
ンビューなど種々の機能を簡単な構成で、適正な明るさ
で観察可能な内視鏡装置を提供することができる。As described above, according to the present invention, 1
In addition to normal observation with an endoscope equipped with two solid-state image sensors,
It is possible to provide an endoscope apparatus capable of observing various functions such as stereoscopic observation, observation of two images of tele / wide or pan view with a simple configuration and with appropriate brightness.
【図１】図１ないし図９は本発明の一実施例に係り、図
１は内視鏡装置の概略構成を示す図1 to 9 relate to an embodiment of the present invention, and FIG. 1 is a diagram showing a schematic configuration of an endoscope apparatus.
【図２】１つの対物光学系で構成した先端光学アダプタ
及び内視鏡先端部の構成を示す断面図FIG. 2 is a cross-sectional view showing a configuration of a distal end optical adapter and an endoscope distal end portion configured by one objective optical system.
【図３】図２の先端光学アダプタの正面図FIG. 3 is a front view of the tip optical adapter of FIG.
【図４】２つの対物光学系で構成した先端光学アダプタ
及び内視鏡先端部の構成を示す断面図FIG. 4 is a sectional view showing a configuration of a distal end optical adapter and an endoscope distal end portion configured by two objective optical systems.
【図５】図４の先端光学アダプタの正面図FIG. 5 is a front view of the tip optical adapter of FIG.
【図６】２つの対物光学系で構成した先端光学アダプタ
の別の構成を示す正面図FIG. 6 is a front view showing another configuration of the tip optical adapter configured by two objective optical systems.
【図７】図６のＩ―Ｉ断面図7 is a sectional view taken along the line II of FIG.
【図８】２つの対物光学系で構成した先端光学アダプタ
の他の構成を示す断面図FIG. 8 is a cross-sectional view showing another configuration of the tip optical adapter configured by two objective optical systems.
【図９】制御装置の構成の１例を示すブロック図FIG. 9 is a block diagram showing an example of a configuration of a control device.
【図１０】その他の構成の先端光学アダプタを内視鏡先
端部に接続した内視鏡装置の概略構成を示す図FIG. 10 is a diagram showing a schematic configuration of an endoscope apparatus in which a tip optical adapter having another configuration is connected to a tip portion of the endoscope.
【図１１】先端光学アダプタに接続可能な内視鏡の別の
構成を説明する断面図FIG. 11 is a cross-sectional view illustrating another configuration of the endoscope connectable to the tip optical adapter.
【図１２】重力方向検出用手段を配設した先端光学アダ
プタの構成を示す断面図FIG. 12 is a cross-sectional view showing the configuration of a tip optical adapter provided with means for detecting the direction of gravity.
１…内視鏡装置 ２…内視鏡 ３０…先端光学アダプタ DESCRIPTION OF SYMBOLS 1 ... Endoscopic device 2 ... Endoscope 30 ... Tip optical adapter
Claims (1)
先端側に接続される先端光学アダプタを有する内視鏡装
置において、 前記内視鏡に着脱自在な先端光学アダプタに同一または
異なる複数の対物光学系を設けたことを特徴とする内視
鏡装置。1. An endoscope apparatus having a tip optical adapter connected to the tip side of an endoscope having one solid-state imaging device built-in, wherein a plurality of tip optical adapters detachable from the endoscope are the same or different. An endoscope apparatus having the objective optical system according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14211395A JP3714636B2 (en) | 1994-11-25 | 1995-06-08 | Endoscope device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-291602 | 1994-11-25 | ||
| JP29160294 | 1994-11-25 | ||
| JP14211395A JP3714636B2 (en) | 1994-11-25 | 1995-06-08 | Endoscope device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08201706A true JPH08201706A (en) | 1996-08-09 |
| JP3714636B2 JP3714636B2 (en) | 2005-11-09 |
Family
ID=26474219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14211395A Expired - Fee Related JP3714636B2 (en) | 1994-11-25 | 1995-06-08 | Endoscope device |
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| Country | Link |
|---|---|
| JP (1) | JP3714636B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2322499A (en) * | 1997-02-19 | 1998-08-26 | Asahi Optical Co Ltd | Endoscope with detachable optical and CCD imaging system or detachable forwardly projecting hood |
| US6142930A (en) * | 1997-01-13 | 2000-11-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electronic endoscope having compact construction |
| US6554767B2 (en) | 2001-04-04 | 2003-04-29 | Olympus Optical Co. Ltd. | Endoscopic optical adapter freely attachable to and detachable from endoscope |
| JP2014228851A (en) * | 2013-05-27 | 2014-12-08 | オリンパス株式会社 | Endoscope device, image acquisition method, and image acquisition program |
-
1995
- 1995-06-08 JP JP14211395A patent/JP3714636B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6142930A (en) * | 1997-01-13 | 2000-11-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electronic endoscope having compact construction |
| GB2321132B (en) * | 1997-01-13 | 2002-04-17 | Asahi Optical Co Ltd | Electronic endoscope |
| GB2322499A (en) * | 1997-02-19 | 1998-08-26 | Asahi Optical Co Ltd | Endoscope with detachable optical and CCD imaging system or detachable forwardly projecting hood |
| US6095970A (en) * | 1997-02-19 | 2000-08-01 | Asahi Kogaku Kogyo Kabushiki Kaisha | Endoscope |
| GB2322499B (en) * | 1997-02-19 | 2001-08-15 | Asahi Optical Co Ltd | Endoscope |
| US6554767B2 (en) | 2001-04-04 | 2003-04-29 | Olympus Optical Co. Ltd. | Endoscopic optical adapter freely attachable to and detachable from endoscope |
| JP2014228851A (en) * | 2013-05-27 | 2014-12-08 | オリンパス株式会社 | Endoscope device, image acquisition method, and image acquisition program |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3714636B2 (en) | 2005-11-09 |
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