JPH06160731A - Stereoscopic endoscope device - Google Patents

Stereoscopic endoscope device

Info

Publication number
JPH06160731A
JPH06160731A JP4309078A JP30907892A JPH06160731A JP H06160731 A JPH06160731 A JP H06160731A JP 4309078 A JP4309078 A JP 4309078A JP 30907892 A JP30907892 A JP 30907892A JP H06160731 A JPH06160731 A JP H06160731A
Authority
JP
Japan
Prior art keywords
adapter
observation
lens
tip
insertion part
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
Application number
JP4309078A
Other languages
Japanese (ja)
Other versions
JP3257641B2 (en
Inventor
Nobuaki Akui
伸章 安久井
Akihiro Taguchi
晶弘 田口
Susumu Takahashi
進 高橋
Tetsumaru Kubota
哲丸 窪田
Satoshi Honma
聡 本間
Atsushi Kidawara
厚 貴俵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP30907892A priority Critical patent/JP3257641B2/en
Publication of JPH06160731A publication Critical patent/JPH06160731A/en
Application granted granted Critical
Publication of JP3257641B2 publication Critical patent/JP3257641B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Endoscopes (AREA)

Abstract

PURPOSE:To provide a stereoscopic endoscope device which can set a convergence angle according to the focusing position of an observed substance. CONSTITUTION:An adapter 5 is cylindrical and provided with a male screw 30 on the inside wall. On the other hand, a female screw 31 screwed to the screw 30 is provided on the outer periphery of the tip of an insertion part 2. Therefore, the adapter 5 is fixed to the tip of the insertion part 2 so as to be freely attached and detached by screwing the screws 30 and 31. An adapter lens 32 is fixed on the tip side of the adapter 5. Besides, the lens 32 is the body to be rotated around the center axis of the insertion part 2 having an incident surface provided with a prescribed angle psi with respect to an optical axis. Moreover, it exerts the equal converting effect of a visual field direction on two objective lens systems 6a and 6b in the insertion part 2.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、観察部位を立体的に観
察できるようにした立体視内視鏡装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic endoscope apparatus capable of stereoscopically observing an observation site.

【0002】[0002]

【従来の技術】細長の挿入部を体腔内等に挿入して、直
接目視できない被検部位を観察することのできる内視鏡
装置が広く用いられている。通常の内視鏡装置では、被
検部位を遠近感のない平面としてしか見ることができな
いため、例えば体腔壁表面の微細な凹凸等を観察するこ
とが困難であり、内視鏡観察による診断や各種処置が容
易にできない不具合があった。
2. Description of the Related Art Endoscope devices are widely used which are capable of observing an inspected site that cannot be visually observed by inserting an elongated insertion part into a body cavity or the like. In a normal endoscope apparatus, since the site to be examined can be seen only as a plane without perspective, it is difficult to observe, for example, minute irregularities on the surface of the body cavity wall, and diagnosis or endoscopic observation is performed. There was a problem that various treatments could not be performed easily.

【0003】そこで、複数の観察光学系を並列に設け、
これらの光学系の光軸がなす輻輳角を設定して視差を持
つように観察光学系を配置し、観察部位を立体視するこ
とができるようにした立体視内視鏡装置が従来より提案
されている。
Therefore, a plurality of observation optical systems are provided in parallel,
Conventionally, a stereoscopic endoscope device has been proposed in which the observation optical system is arranged so as to have parallax by setting the convergence angle formed by the optical axes of these optical systems, and the observation site can be stereoscopically viewed. ing.

【0004】このような立体視内視鏡装置として、例え
ば特開昭63−294509号公報に開示されているよ
うな装置があり、一対の光学系において照明光学系と観
察光学系とを交互に切換えることによって、最小限の光
学系で観察部位を立体的に観察できるようにしている。
As such a stereoscopic endoscope device, there is a device disclosed in, for example, Japanese Patent Laid-Open No. 63-294509, and an illumination optical system and an observation optical system are alternately arranged in a pair of optical systems. By switching, the observation area can be stereoscopically observed with the minimum optical system.

【0005】立体感のある被写体像を得るためには、複
数の光学系の光軸の交点が観察部位の位置と一致してい
る必要がある。すなわち、立体感が得られる被写体の範
囲は、前記光軸の交点から所定の距離の範囲であり、こ
の範囲内に観察対象部位が位置していないと適当な立体
感が得られない。例えば、顕微鏡の光学系を用いた場合
は、被写界深度が浅いため、焦点が合う位置が複数の光
学系の光軸の交点となり、合焦状態の被写体像は立体感
が得られるが、内視鏡の光学系の場合は、被写界深度が
深いため、観察部位に凹凸がある場合などは観察物全体
に焦点が合っていても立体感が得られる部分は限られて
しまう。つまり、立体感を得たい目的の観察対象部位ま
での距離に応じて、複数の光学系の光軸の交点の位置を
調整する必要がある。
In order to obtain a three-dimensional object image, the intersections of the optical axes of a plurality of optical systems must match the position of the observation site. That is, the range of the subject in which a stereoscopic effect is obtained is a range of a predetermined distance from the intersection of the optical axes, and an appropriate stereoscopic effect cannot be obtained unless the observation target site is located within this range. For example, when the optical system of a microscope is used, the depth of field is shallow, so that the focused position is the intersection of the optical axes of the plurality of optical systems, and the in-focus object image has a stereoscopic effect. In the case of the optical system of the endoscope, since the depth of field is deep, the portion where the stereoscopic effect can be obtained is limited even when the entire observation object is in focus when the observation portion is uneven. That is, it is necessary to adjust the positions of the intersections of the optical axes of the plurality of optical systems according to the distance to the observation target site for which a stereoscopic effect is desired.

【0006】そこで、従来の立体視内視鏡装置の挿入部
先端に設けられた光学系は、図6に示すように、観察像
の左右の像を伝送するために、2対の対物レンズ系52
a、52bと、この2対の対物レンズ系52a、52b
からの観察像を図示しない固体撮像素子、例えばCCD
に伝送する2対のリレーレンズ系54a、54bとを備
え、さらに、2対の対物レンズ系52a、52bの入射
端面には、プリズム(またはレンズ)50が固着して設
けられている。
Therefore, as shown in FIG. 6, the optical system provided at the tip of the insertion portion of the conventional stereoscopic endoscope apparatus has two pairs of objective lens systems for transmitting left and right images of an observation image. 52
a, 52b and the two pairs of objective lens systems 52a, 52b
A solid-state image sensor (not shown) such as a CCD
And a pair of relay lens systems 54a and 54b for transmitting light to the optical system. Further, prisms (or lenses) 50 are fixedly provided on the incident end faces of the two pairs of objective lens systems 52a and 52b.

【0007】このように構成することにより、従来の立
体視内視鏡装置は、2対の対物レンズ系52a、52b
に先端に設けられた前玉51a、51bあるいはCCD
を左右に移動することなく、プリズム50により輻輳角
θを所望の角度に設定することができるようになってい
る。
With such a structure, the conventional stereoscopic endoscope apparatus has two pairs of objective lens systems 52a and 52b.
Front lens 51a, 51b or CCD provided at the tip of
The prism 50 can set the convergence angle θ to a desired angle without moving the right and left.

【0008】[0008]

【発明が解決しようとする課題】しかしながら、従来の
立体視内視鏡装置では、輻輳角θを所望の角度に設定す
るプリズム50は、2対の対物レンズ系52a、52b
の入射端面に固着して設けられているので、観察物の焦
点位置が所定位置の場合のみ輻輳角θを設定することが
できるが、所望の焦点位置の観察物に対して十分な立体
感を有する立体像を得るためには、観察物の焦点位置に
応じた輻輳角θを設定するプリズムを有する立体視内視
鏡装置を複数用意する必要があり、観察物に応じて立体
視内視鏡装置を交換して観察しなければならないという
問題がある。
However, in the conventional stereoscopic endoscope apparatus, the prism 50 that sets the convergence angle θ to a desired angle is provided with two pairs of objective lens systems 52a and 52b.
Since it is fixedly provided on the entrance end surface of the object, the convergence angle θ can be set only when the focal position of the observation object is a predetermined position, but a sufficient stereoscopic effect is obtained for the observation object at the desired focal position. In order to obtain a stereoscopic image, it is necessary to prepare a plurality of stereoscopic endoscope devices having prisms that set the convergence angle θ according to the focal position of the observation object, and the stereoscopic endoscope according to the observation object. There is the problem that the device must be replaced and observed.

【0009】本発明は、上記事情に鑑みてなされたもの
であり、簡単な構成で、観察物の焦点位置に応じて輻輳
角を設定することのできる立体視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 it is an object of the present invention to provide a stereoscopic endoscope apparatus capable of setting a convergence angle according to a focal position of an observation object with a simple structure. Has an aim.

【0010】[0010]

【課題を解決するための手段及び作用】本発明の立体視
内視鏡装置は、体腔内あるいは管内に挿入する挿入部
と、前記挿入部先端の前方あるいは近傍の観察部位を観
察する複数の観察光学系とを備え、前記挿入部内に前記
複数の観察光学系を立体視可能な視差を持つように配置
した立体視内視鏡装置であって、前記複数の観察光学系
の光軸が交わる位置を調節する調節光学系を複数備え、
前記調節光学系を前記複数の観察光学系の入射端面に設
け、前記観察部位を観察する。
A stereoscopic endoscope apparatus according to the present invention has a plurality of observations for observing an insertion part to be inserted into a body cavity or a tube and an observation site in front of or near the tip of the insertion part. A stereoscopic endoscope device including an optical system, wherein the plurality of observation optical systems are arranged in the insertion portion so as to have a parallax capable of stereoscopic vision, and a position where optical axes of the plurality of observation optical systems intersect. Equipped with multiple adjustment optics to adjust
The adjustment optical system is provided on the incident end faces of the plurality of observation optical systems to observe the observation site.

【0011】[0011]

【実施例】以下、図面を参照しながら本発明の実施例に
ついて述べる。
Embodiments of the present invention will be described below with reference to the drawings.

【0012】図1ないし図3は本発明の第1実施例に係
わり、図1は立体視内視鏡装置の要部の構成を示す構成
図、図2は図1の挿入部先端に設けられるアダプタの構
成を示す断面図、図2は図1の挿入部先端に設けられる
アダプタの変形例の構成を示す断面図である。
1 to 3 relate to a first embodiment of the present invention. FIG. 1 is a block diagram showing the configuration of the main part of a stereoscopic endoscope apparatus, and FIG. 2 is provided at the tip of the insertion section of FIG. FIG. 2 is a cross-sectional view showing the configuration of the adapter, and FIG. 2 is a cross-sectional view showing the configuration of a modified example of the adapter provided at the tip of the insertion portion of FIG.

【0013】本実施例の立体視内視鏡装置は、図1に示
すように、硬性な挿入部2とこの挿入部2の基端に設け
られた保持部3とからなる硬性内視鏡1と、前記保持部
3の基端に着脱自在に設けられたTVカメラ4とを備え
て構成される。尚、図示はしないが、立体視内視鏡装置
は、観察物5に照明光を供給する光源を備えている。
As shown in FIG. 1, the stereoscopic endoscope apparatus of the present embodiment has a rigid endoscope 1 including a rigid insertion portion 2 and a holding portion 3 provided at the base end of the insertion portion 2. And a TV camera 4 detachably provided at the base end of the holding portion 3. Although not shown, the stereoscopic endoscope device includes a light source that supplies illumination light to the observation object 5.

【0014】前記挿入部2内には、図示しない光源から
の照明光を先端に伝送し観察物5に照射する図示しない
ライトガイド及び照明光学系が設けられている。観察物
5からの戻り光は、挿入部2先端に着脱自在に設けられ
輻輳角を調整するアダプタ5を介して、挿入部2の先端
に設けられた2対の対物レンズ系6a、6bに入射され
る。前記対物レンズ系6aに入射された光は、挿入部2
内を挿通するリレーレンズ系8aにより、保持部3内に
設けられたプリズム10aに伝送される。前記プリズム
10aは伝送された光を直角に反射しレンズ群12aを
介してプリズム14aに伝送される。前記プリズム14
aは光を直角に反射し集光レンズ16aに伝送し、前記
集光レンズ16aの出射側に結像した観察像を形成する
ようになっている。前記集光レンズ16aの出射側に結
像した観察像は、レンズ18aにより平行光となりカバ
ーガラス20aを介してTVカメラ4に伝送される。
Inside the insertion portion 2, a light guide and an illumination optical system (not shown) for transmitting illumination light from a light source (not shown) to the tip and irradiating the observation object 5 are provided. The return light from the observation object 5 is incident on the two pairs of objective lens systems 6a and 6b provided at the tip of the insertion section 2 via the adapter 5 that is detachably provided at the tip of the insertion section 2 and adjusts the convergence angle. To be done. The light incident on the objective lens system 6a is inserted into the insertion portion 2
It is transmitted to the prism 10a provided in the holding portion 3 by the relay lens system 8a which is inserted inside. The prism 10a reflects the transmitted light at a right angle and transmits it to the prism 14a through the lens group 12a. The prism 14
The light a is reflected at a right angle and is transmitted to the condenser lens 16a to form an observation image formed on the exit side of the condenser lens 16a. The observation image formed on the exit side of the condenser lens 16a becomes parallel light by the lens 18a and is transmitted to the TV camera 4 via the cover glass 20a.

【0015】前記対物レンズ系6bに入射された光も同
様に、挿入部2内を挿通するリレーレンズ系8bによ
り、保持部3内に設けられたプリズム10bに伝送され
る。前記プリズム10bは伝送された光を直角に反射し
レンズ群12bを介してプリズム14bに伝送される。
前記プリズム14bは光を直角に反射し集光レンズ16
bに伝送し、前記集光レンズ16bの出射側に結像した
観察像を形成するようになっている。前記集光レンズ1
6bの出射側に結像した観察像は、レンズ18bにより
平行光となりカバーガラス20bを介してTVカメラ4
に伝送される。
The light incident on the objective lens system 6b is similarly transmitted to the prism 10b provided in the holding portion 3 by the relay lens system 8b which is inserted through the insertion portion 2. The prism 10b reflects the transmitted light at a right angle and transmits it to the prism 14b through the lens group 12b.
The prism 14b reflects light at a right angle, and a condenser lens 16
b, and an observation image formed on the exit side of the condenser lens 16b is formed. The condensing lens 1
The observation image formed on the exit side of 6b is converted into parallel light by the lens 18b, and the TV camera 4 is passed through the cover glass 20b.
Be transmitted to.

【0016】TVカメラ4では、カバーガラス20a、
20bからの平行光をカバーガラス22a、22bを介
して入射し、カバーガラス20aからの平行光は、結像
レンズ系24aを介してCCD26aに撮像面に結像す
るようになっている。同様に、カバーガラス20bから
の平行光は、結像レンズ系24bを介してCCD26b
に撮像面に結像するようになっている。
In the TV camera 4, the cover glass 20a,
The parallel light from 20b enters through the cover glasses 22a and 22b, and the parallel light from the cover glass 20a forms an image on the image pickup surface on the CCD 26a through the imaging lens system 24a. Similarly, the parallel light from the cover glass 20b passes through the imaging lens system 24b and the CCD 26b.
The image is formed on the image pickup surface.

【0017】尚、前記CCD26a、26bにより撮像
した観察像の撮像信号を信号処理し立体画像を生成する
信号処理装置と、この信号処理装置からの立体画像を表
示するモニタを備えており、これらは公知の手段より構
成されるので説明は省略する。つまり、前記CCD26
a、26bにより撮像した撮像信号は図示しない信号処
理装置により信号処理され、図示しないモニタにより観
察像を立体表示するようになっている。
A signal processing device for signal-processing the image pickup signals of the observation images picked up by the CCDs 26a, 26b to generate a stereoscopic image and a monitor for displaying the stereoscopic image from the signal processing device are provided. Since it is composed of known means, the explanation is omitted. That is, the CCD 26
The image pickup signals picked up by a and 26b are subjected to signal processing by a signal processing device (not shown), and an observation image is stereoscopically displayed by a monitor (not shown).

【0018】このように、前記保持部3とTVカメラ4
との接続は、着脱自在となっているので、オートクレー
ブ滅菌耐性のないCCD26a、26bに対してTVカ
メラ4を取り外し硬性内視鏡1と分離することにより、
硬性内視鏡1単体でオートクレーブ滅菌処理を行うこと
ができる。
As described above, the holding portion 3 and the TV camera 4 are
Since the connection with is detachable, by removing the TV camera 4 from the CCDs 26a and 26b which are not resistant to autoclave sterilization and separating the rigid endoscope 1.
The rigid endoscope 1 alone can be autoclave sterilized.

【0019】さらに、符号aで示すように、光学系に関
しては光束が平行光になる位置で前記保持部3とTVカ
メラ4との接続を行っているので、硬性内視鏡1とTV
カメラ4のそれぞれの光軸のずれがCCD26a、26
b上で影響を及ぼさないようになっている。したがっ
て、光学系における前記保持部3とTVカメラ4の接続
位置は、符号aの位置に限らず、平行光となる位置、例
えば、A−A’線で示す位置、あるいはB−B’線で示
す位置で分離するような構造にしても良い。
Further, as indicated by the symbol a, in the optical system, since the holding portion 3 and the TV camera 4 are connected at a position where the light flux becomes parallel light, the rigid endoscope 1 and the TV are connected.
The displacement of each optical axis of the camera 4 is caused by the CCDs 26a, 26
It has no effect on b. Therefore, the connection position of the holding unit 3 and the TV camera 4 in the optical system is not limited to the position of the symbol a, but a position where parallel light is obtained, for example, a position indicated by the line AA ′ or a line BB ′. The structure may be such that they are separated at the position shown.

【0020】前記挿入部2の先端に設けられる前記アダ
プタ5は、図2に示すように、円筒型であり内壁には雄
ネジ30が設けられ、一方、前記挿入部2の先端外周に
は前記雄ネジ30に螺合する雌ネジ31が設けられてい
る。したがって、雄ネジ30と雌ネジ31とを螺合する
ことにより、前記アダプタ5を前記挿入部2の先端に着
脱自在に固定している。前記アダプタ5の先端側にはア
ダプタレンズ32が固定されており、このアダプタレン
ズ32は、光軸に対し所定の角度ψを有する入射面を持
った挿入部2の中心軸回りの回転対象体になっており、
挿入部2内の2つの対物レンズ系6a、6bに対して同
等の視野方向変換の効果を及ぼす。即ち、図示しない対
物レンズ駆動系により対物レンズ系6a、6bを光軸方
向に移動し所定の焦点位置に設定し、この焦点位置での
最適な輻輳角をアダプタレンズ32によって設定する。
As shown in FIG. 2, the adapter 5 provided at the tip of the insertion section 2 is a cylindrical type and has an external thread 30 provided on the inner wall thereof, while the adapter 5 is provided on the outer circumference of the tip of the insertion section 2. A female screw 31 that is screwed into the male screw 30 is provided. Therefore, the adapter 5 is detachably fixed to the tip of the insertion portion 2 by screwing the male screw 30 and the female screw 31 together. An adapter lens 32 is fixed to the tip end side of the adapter 5, and the adapter lens 32 is a rotation target object around the central axis of the insertion section 2 having an incident surface having a predetermined angle ψ with respect to the optical axis. Has become
The same effect of changing the direction of the visual field is exerted on the two objective lens systems 6a and 6b in the insertion section 2. That is, the objective lens drive system (not shown) moves the objective lens systems 6a and 6b in the optical axis direction to set them at a predetermined focal position, and the adapter lens 32 sets the optimum convergence angle at this focal position.

【0021】本実施例の立体視内視鏡装置においては、
前記角度ψの異なるアダプタレンズ32を有するアダプ
タ5を複数備えており、アダプタ5を付け替えることに
より、所望の焦点距離に対応した輻輳角を設定すること
ができ、観察物に対して十分な立体感を有する立体像を
得ることができる。
In the stereoscopic endoscope apparatus of this embodiment,
A plurality of adapters 5 having the adapter lenses 32 having different angles ψ are provided, and by changing the adapters 5, a convergence angle corresponding to a desired focal length can be set, and a sufficient stereoscopic effect for an observed object can be obtained. It is possible to obtain a stereoscopic image having

【0022】尚、焦点位置の設定は対物レンズ系を移動
することにより行うとしたが、これに限らず、集光レン
ズ16a、16bを光軸方向に移動することにより行っ
ても良いし、また、TVカメラ側でCCD26a、26
bを光軸方向に移動することにより行っても良い。
Although the focus position is set by moving the objective lens system, it is not limited to this, but may be set by moving the condenser lenses 16a and 16b in the optical axis direction. , CCD 26a, 26 on the TV camera side
It may be performed by moving b in the optical axis direction.

【0023】アダプタ5は、上記の構成に限らず、例え
ば、図3に示すように、入射面が球面である通常のレン
ズからなるアダプタレンズ32aを備えたアダプタ5a
でも良く、入射面の曲率の異なるアダプタレンズ32a
を有するアダプタ5aを複数備えることにより、同様に
アダプタ5aを付け替えて所望の焦点距離に対応した輻
輳角を設定することができる。
The adapter 5 is not limited to the above-mentioned configuration, and for example, as shown in FIG. 3, the adapter 5a is provided with an adapter lens 32a which is an ordinary lens having a spherical entrance surface.
However, the adapter lens 32a having a different incident surface curvature may be used.
By providing a plurality of adapters 5a having the same, it is possible to replace the adapters 5a in the same manner and set a convergence angle corresponding to a desired focal length.

【0024】次に第2実施例について説明する。Next, a second embodiment will be described.

【0025】図4及び図5は第2実施例に係わり、図4
はアダプタの構成を示す構成図、図5は変形例のアダプ
タの装着状態を説明する説明図である。
FIGS. 4 and 5 relate to the second embodiment, and FIG.
Is a configuration diagram showing a configuration of an adapter, and FIG. 5 is an explanatory diagram illustrating a mounting state of a modified adapter.

【0026】第2実施例は、第1実施例に対してアダプ
タの構成のみ異なるので、異なる構成のみ説明する。
Since the second embodiment differs from the first embodiment only in the configuration of the adapter, only the different configuration will be described.

【0027】図4に示すように、第2実施例のアダプタ
34は、入射面にレンズ35a、35b及びレンズ36
a、36bを備えており、レンズ35a、35bを対と
し、また90゜回転した位置に設けられたするレンズ3
6a、36bを対として、レンズ35a、35bあるい
はレンズ36a、36bを選択することにより、対物レ
ンズ系6a、6bに対して輻輳角を設定するようになっ
ている。図示はしないが、このアダプタ34の内壁には
雄ネジが設けられており、第1実施例と同様に、挿入部
2の先端に設けられた雌ネジ31とを螺合することによ
り、前記アダプタ34を前記挿入部2の先端に着脱自在
に固定する。この固定位置によりレンズ35a、35b
あるいはレンズ36a、36bを選択するようになって
いる。その他の構成は第1実施例と同じである。
As shown in FIG. 4, the adapter 34 of the second embodiment has lenses 35a, 35b and a lens 36 on the incident surface.
lens 3 which is provided with a and 36b, and which is provided at a position rotated by 90 ° by pairing the lenses 35a and 35b.
By selecting the lenses 35a and 35b or the lenses 36a and 36b with the 6a and 36b as a pair, the convergence angle is set with respect to the objective lens systems 6a and 6b. Although not shown in the drawing, a male screw is provided on the inner wall of the adapter 34, and like the first embodiment, the adapter 34 is screwed with a female screw 31 provided at the tip of the insertion portion 2. 34 is detachably fixed to the tip of the insertion portion 2. By this fixed position, the lenses 35a, 35b
Alternatively, the lenses 36a and 36b are selected. The other structure is the same as that of the first embodiment.

【0028】このようなアダプタ34を備えた第2実施
例においては、第1実施例と同様に、レンズ35a、3
5bあるいはレンズ36a、36bを選択することによ
り、対物レンズ系6a、6bの所望の焦点距離に対して
輻輳角を設定することができる。尚、アダプタ34を透
明樹脂で形成することにより、アダプタ34とレンズ3
5a、35b及びレンズ36a、36bを一体成形して
も良く、この場合、アダプタを1回限りの使い捨てにす
るようにしても良く、使い捨てにすることにより使用後
の洗浄等が簡単になる。
In the second embodiment provided with such an adapter 34, the lenses 35a, 3a and 3a are provided as in the first embodiment.
By selecting 5b or the lenses 36a and 36b, the convergence angle can be set with respect to the desired focal length of the objective lens systems 6a and 6b. The adapter 34 and the lens 3 are formed by forming the adapter 34 with a transparent resin.
The lenses 5a and 35b and the lenses 36a and 36b may be integrally molded. In this case, the adapter may be disposable only once, and the disposable makes cleaning after use easy.

【0029】第2実施例において、挿入部2の先端に設
けられた雌ネジ31とを螺合することにより、前記アダ
プタ34を前記挿入部2の先端に着脱自在に固定すると
したが、これに限らず、図5に示すように、硬性内視鏡
の挿入部2aの先端外周に複数、例えば中心軸に対して
90゜回転した位置に4つの凹部40を設けると共に、
アダプタ34aの内壁に前記凹部40に嵌合する等間隔
に配置された4つのクリックストップ機構の凸部41を
設けるようにしても良い。
In the second embodiment, the adapter 34 is detachably fixed to the distal end of the insertion portion 2 by screwing with the female screw 31 provided at the distal end of the insertion portion 2. Without being limited to this, as shown in FIG. 5, a plurality of, for example, four recesses 40 are provided on the outer periphery of the distal end of the insertion portion 2a of the rigid endoscope, for example, at positions rotated by 90 ° with respect to the central axis.
You may make it provide the convex part 41 of four click stop mechanisms arrange | positioned at the inner wall of the adapter 34a which fits in the said recessed part 40 at equal intervals.

【0030】即ち、アダプタ34aは、挿入部2aの先
端よりはめ込んで着脱自在に装着され、この場合、凸部
41はアダプタ34aの円筒枠内に押し込められる。そ
の状態でアダプタ34aを中心軸回りに回転させること
により、凸部41を凹部40の位置に合わせると応力に
より凸部41が凹部40と嵌合し装着される。この状態
で対物レンズ系6a、6bの所望の焦点距離に対して輻
輳角を設定する場合は、アダプタ34aを中心軸回りに
90゜回転ずつさせて再び凸部41を凹部40に嵌合さ
せることにより、レンズ35a、35bあるいはレンズ
36a、36bを選択することができると共に、対物レ
ンズ系6a、6bに対してレンズ35a、35bあるい
はレンズ36a、36bの位置決めを簡単且つ正確に行
うことができる。
That is, the adapter 34a is detachably mounted by fitting it from the tip of the insertion portion 2a. In this case, the convex portion 41 is pushed into the cylindrical frame of the adapter 34a. In this state, by rotating the adapter 34a around the central axis so that the convex portion 41 is aligned with the position of the concave portion 40, the convex portion 41 is fitted and mounted in the concave portion 40 due to stress. In this state, when the vergence angle is set to the desired focal length of the objective lens systems 6a and 6b, the adapter 34a is rotated by 90 ° around the central axis and the convex portion 41 is fitted into the concave portion 40 again. Thus, the lens 35a, 35b or the lens 36a, 36b can be selected, and the lens 35a, 35b or the lens 36a, 36b can be easily and accurately positioned with respect to the objective lens system 6a, 6b.

【0031】尚、上記各実施例においては硬性内視鏡を
用いて説明したが、可撓性を有する軟性内視鏡でも良
い。また、TVカメラを内視鏡基端部に装着し観察像を
撮像するように構成したが、これに限らず、内視鏡先端
部に1対のCCD等の固体撮像素子を備え、対物レンズ
からの観察像を撮像する電子式の立体視内視鏡装置に対
しても本発明は適用でき、同等の効果を得ることができ
る。
Although a hard endoscope is used in each of the above embodiments, a flexible soft endoscope may be used. Further, although the TV camera is attached to the base end of the endoscope to capture an observation image, the present invention is not limited to this, and the front end of the endoscope includes a pair of solid-state imaging devices such as CCDs and an objective lens. The present invention can also be applied to an electronic stereoscopic endoscope device that captures an observation image from, and an equivalent effect can be obtained.

【0032】[0032]

【発明の効果】以上説明したように本発明の立体視内視
鏡装置によれば、体腔内あるいは管内に挿入する挿入部
と、前記挿入部先端の前方あるいは近傍の観察部位を観
察する複数の観察光学系とを備え、前記挿入部内に前記
複数の観察光学系を立体視可能な視差を持つように配置
した立体視内視鏡装置であって、前記複数の観察光学系
の光軸が交わる位置を調節する調節光学系を複数備え、
前記調節光学系を前記複数の観察光学系の入射端面に設
け、前記観察部位を観察するので、簡単な構成で、観察
物の焦点位置に応じて輻輳角を設定することのできると
いう効果がある。
As described above, according to the stereoscopic endoscope apparatus of the present invention, there are provided a plurality of insertion portions to be inserted into a body cavity or a tube, and a plurality of observation portions for observing an observation site in front of or near the tip of the insertion portion. A stereoscopic endoscope apparatus including an observation optical system, wherein the plurality of observation optical systems are arranged in the insertion portion so as to have a parallax capable of stereoscopic vision, and optical axes of the plurality of observation optical systems intersect with each other. Equipped with multiple adjustment optics to adjust the position,
Since the adjustment optical system is provided on the incident end faces of the plurality of observation optical systems and the observation site is observed, there is an effect that the vergence angle can be set according to the focal position of the observation object with a simple configuration. .

【図面の簡単な説明】[Brief description of drawings]

【図1】第1実施例に係る立体視内視鏡装置の要部の構
成を示す構成図である。
FIG. 1 is a configuration diagram showing a configuration of a main part of a stereoscopic endoscope apparatus according to a first embodiment.

【図2】第1実施例に係る挿入部先端に設けられるアダ
プタの構成を示す断面図である。
FIG. 2 is a cross-sectional view showing the configuration of an adapter provided at the distal end of the insertion section according to the first example.

【図3】第1実施例に係る挿入部先端に設けられるアダ
プタの変形例の構成を示す断面図である。
FIG. 3 is a cross-sectional view showing the configuration of a modified example of the adapter provided at the distal end of the insertion portion according to the first embodiment.

【図4】第2実施例に係るアダプタの構成を示す構成図
である。
FIG. 4 is a configuration diagram showing a configuration of an adapter according to a second embodiment.

【図5】第2実施例に係る変形例のアダプタの装着状態
を説明する説明図である。
FIG. 5 is an explanatory diagram illustrating a mounted state of an adapter of a modified example according to the second embodiment.

【図6】従来例に係る立体視内視鏡先端部の光学系の構
成を示す構成図である。
FIG. 6 is a configuration diagram showing a configuration of an optical system of a tip portion of a stereoscopic endoscope according to a conventional example.

【符号の説明】[Explanation of symbols]

1…硬性内視鏡 2…挿入部 4…TVカメラ 5…アダプタ 6a…対物レンズ系 6b…対物レンズ系 8a…リレーレンズ系 8b…リレーレンズ系 30…雄ネジ 31…雌ネジ 32…アダプタレンズ 1 ... Rigid endoscope 2 ... Insertion part 4 ... TV camera 5 ... Adapter 6a ... Objective lens system 6b ... Objective lens system 8a ... Relay lens system 8b ... Relay lens system 30 ... Male screw 31 ... Female screw 32 ... Adapter lens

【手続補正書】[Procedure amendment]

【提出日】平成5年2月17日[Submission date] February 17, 1993

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0030[Name of item to be corrected] 0030

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0030】即ち、アダプタ34aは、挿入部2aの先
端よりはめ込んで着脱自在に装着され、この場合、凸部
41はアダプタ34aの円筒枠内に押し込められる。そ
の状態でアダプタ34aを中心軸回りに回転させること
により、凸部41を凹部40の位置に合わせると応力に
より凸部41が凹部40と嵌合し装着される。この状態
で対物レンズ系6a、6bの所望の焦点距離に対して輻
輳角を設定する場合は、アダプタ34aを中心軸回りに
90゜ずつ回転させて再び凸部41を凹部40に嵌合さ
せることにより、レンズ35a、35bあるいはレンズ
36a、36bを選択することができると共に、対物レ
ンズ系6a、6bに対してレンズ35a、35bあるい
はレンズ36a、36bの位置決めを簡単且つ正確に行
うことができる。
That is, the adapter 34a is detachably mounted by fitting it from the tip of the insertion portion 2a. In this case, the convex portion 41 is pushed into the cylindrical frame of the adapter 34a. In this state, by rotating the adapter 34a around the central axis so that the convex portion 41 is aligned with the position of the concave portion 40, the convex portion 41 is fitted and mounted in the concave portion 40 due to stress. In this state, when the convergence angle is set with respect to the desired focal length of the objective lens systems 6a and 6b, the adapter 34a is rotated around the central axis.
The lenses 35a, 35b or the lenses 36a, 36b can be selected by rotating them by 90 ° and fitting the convex portions 41 into the concave portions 40 again, and at the same time , the lenses 35a, 35b can be selected with respect to the objective lens systems 6a, 6b. Alternatively, the lenses 36a and 36b can be positioned easily and accurately.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 窪田 哲丸 東京都渋谷区幡ヶ谷2丁目43番2号 オリ ンパス光学工業株式会社内 (72)発明者 本間 聡 東京都渋谷区幡ヶ谷2丁目43番2号 オリ ンパス光学工業株式会社内 (72)発明者 貴俵 厚 東京都渋谷区幡ヶ谷2丁目43番2号 オリ ンパス光学工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsumaru Kubota 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Satoshi Honma 2-43-2 Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Industry Co., Ltd. (72) Inventor Atsushi Kiwata 2-43-2 Hatagaya, Shibuya-ku, Tokyo Within Olympus Optical Industry Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 体腔内あるいは管内に挿入する挿入部
と、前記挿入部先端の前方あるいは近傍の観察部位を観
察する複数の観察光学系とを備え、前記挿入部内に前記
複数の観察光学系を立体視可能な視差を持つように配置
した立体視内視鏡装置であって、 前記複数の観察光学系の光軸が交わる位置を調節する調
節光学系を複数備え、 前記調節光学系を前記複数の観察光学系の入射端面に設
けたことを特徴とする立体視内視鏡装置。
1. An insertion part to be inserted into a body cavity or a tube, and a plurality of observation optical systems for observing an observation site in front of or near the tip of the insertion part, wherein the plurality of observation optical systems are provided in the insertion part. A stereoscopic endoscope device arranged so as to have a parallax capable of stereoscopic vision, comprising a plurality of adjustment optical systems for adjusting positions where optical axes of the plurality of observation optical systems intersect, and the plurality of adjustment optical systems are provided. The stereoscopic endoscope device, which is provided on the entrance end surface of the observation optical system.
JP30907892A 1992-11-18 1992-11-18 Stereoscopic endoscope device Expired - Fee Related JP3257641B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30907892A JP3257641B2 (en) 1992-11-18 1992-11-18 Stereoscopic endoscope device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30907892A JP3257641B2 (en) 1992-11-18 1992-11-18 Stereoscopic endoscope device

Publications (2)

Publication Number Publication Date
JPH06160731A true JPH06160731A (en) 1994-06-07
JP3257641B2 JP3257641B2 (en) 2002-02-18

Family

ID=17988623

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30907892A Expired - Fee Related JP3257641B2 (en) 1992-11-18 1992-11-18 Stereoscopic endoscope device

Country Status (1)

Country Link
JP (1) JP3257641B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07230045A (en) * 1994-02-12 1995-08-29 Richard Wolf Gmbh Stereo endoscope
JPH07311348A (en) * 1994-05-17 1995-11-28 Olympus Optical Co Ltd Plural visual field-direction type endoscope
JP2002301012A (en) * 2001-04-05 2002-10-15 Olympus Optical Co Ltd Electronic endoscope
US6606113B2 (en) 1995-05-24 2003-08-12 Olympus Optical Co., Ltd. Stereoscopic endocsope system and TV imaging system for endoscope
CN104434006A (en) * 2014-12-26 2015-03-25 天津工业大学 Double-channel endoscope
US10602113B2 (en) 2017-03-13 2020-03-24 Sony Olympus Medical Solutions Inc. Medical imaging device and medical observation system
US11298006B2 (en) 2016-10-07 2022-04-12 Sony Olympus Medical Solutions Inc. Medical imaging apparatus and medical observation system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104188616B (en) * 2014-09-22 2016-05-04 天津博朗科技发展有限公司 A kind of stereo endoscope that is easy to assembling

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07230045A (en) * 1994-02-12 1995-08-29 Richard Wolf Gmbh Stereo endoscope
JPH07311348A (en) * 1994-05-17 1995-11-28 Olympus Optical Co Ltd Plural visual field-direction type endoscope
US6606113B2 (en) 1995-05-24 2003-08-12 Olympus Optical Co., Ltd. Stereoscopic endocsope system and TV imaging system for endoscope
JP2002301012A (en) * 2001-04-05 2002-10-15 Olympus Optical Co Ltd Electronic endoscope
JP4647817B2 (en) * 2001-04-05 2011-03-09 オリンパス株式会社 Electronic endoscope
CN104434006A (en) * 2014-12-26 2015-03-25 天津工业大学 Double-channel endoscope
US11298006B2 (en) 2016-10-07 2022-04-12 Sony Olympus Medical Solutions Inc. Medical imaging apparatus and medical observation system
US10602113B2 (en) 2017-03-13 2020-03-24 Sony Olympus Medical Solutions Inc. Medical imaging device and medical observation system

Also Published As

Publication number Publication date
JP3257641B2 (en) 2002-02-18

Similar Documents

Publication Publication Date Title
US5459605A (en) 3-D endoscope apparatus
JP3257640B2 (en) Stereoscopic endoscope device
JP4093503B2 (en) Stereoscopic endoscope
US5222477A (en) Endoscope or borescope stereo viewing system
US6139490A (en) Stereoscopic endoscope with virtual reality viewing
US5976076A (en) Stereo laparoscope with synchronized optics
US7621868B2 (en) Convergence optics for stereoscopic imaging systems
US5613936A (en) Stereo laparoscope apparatus
EP0821805B1 (en) Stereo video endoscope objective lens system
JP3526531B2 (en) Advanced structure of stereoscopic endoscope
US20030233024A1 (en) Electronic endoscope for stereoscopic endoscope system
US8149270B1 (en) High resolution endoscope
US9829697B2 (en) Stereo endoscope system
JPH0882766A (en) Stereoscopic endoscope
JPH06202006A (en) Stereoscopic hard endoscope
US20030191364A1 (en) Stereo laparoscope with discrete working distance
JPH06160731A (en) Stereoscopic endoscope device
EP0681809A1 (en) Stereo imaging assembly for endoscopic probe
JPH0743619A (en) Stereoscopic endoscope
JPH06208061A (en) Stereoscopic endoscope
WO2021131921A1 (en) Rigid mirror device
JPH07323004A (en) Stereoscopic endoscope system
JPH05341210A (en) Stereoscopic endoscope device
WO2020016980A1 (en) Distal end hood and endoscope system
JP3226361B2 (en) Stereoscopic rigid endoscope

Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20011121

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081207

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081207

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091207

Year of fee payment: 8

LAPS Cancellation because of no payment of annual fees