JPS63301015A - Endoscope device - Google Patents
Endoscope deviceInfo
- Publication number
- JPS63301015A JPS63301015A JP62134956A JP13495687A JPS63301015A JP S63301015 A JPS63301015 A JP S63301015A JP 62134956 A JP62134956 A JP 62134956A JP 13495687 A JP13495687 A JP 13495687A JP S63301015 A JPS63301015 A JP S63301015A
- Authority
- JP
- Japan
- Prior art keywords
- image guide
- side end
- end part
- object side
- objective
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 238000003780 insertion Methods 0.000 claims abstract description 17
- 230000037431 insertion Effects 0.000 claims abstract description 17
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000007689 inspection Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 101100167365 Caenorhabditis elegans cha-1 gene Proteins 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、体腔内部または機械的構造体の内部を観察
するための内視鏡装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an endoscope device for observing the inside of a body cavity or a mechanical structure.
従来より内視鏡装置としては種々の形式のものが提案さ
れているが、ファイババンドルより成るライトガイドに
よって被観察物体に照明光を照射し、被観察物体の像を
対物レンズ系によってファイババンドルより成るイメー
ジガイドの対物側端面に結像させ、このイメージガイド
の接眼側端面まで伝達される像を接眼レンズ系を介して
肉眼で観察したり、撮影レンズを有するテレビカメラで
撮影してモニタ上に映出するようにしたものが知られて
いる。Various types of endoscope devices have been proposed in the past, and an object to be observed is irradiated with illumination light using a light guide made of a fiber bundle, and an image of the object to be observed is projected from the fiber bundle by an objective lens system. The image is formed on the end surface of the image guide on the object side, and the image transmitted to the end surface of the image guide on the eyepiece side can be observed with the naked eye through an eyepiece system, or it can be photographed with a television camera equipped with a photographic lens and displayed on a monitor. There are known ones that are designed to project images.
このような内視鏡装置においては、イメージガイドはコ
アの周囲にクラッドを被覆した光学ファイバを束ねて形
成しているため、分解能が低く、特に挿入部の径を小さ
くしようとすると、ファイバの本数が少なくなり、分解
能を十分に上げることができなくなるとともに、ファイ
バとファイバの間では光が伝達されないため黒い網目が
見えるようになり、特に拡大した場合に見にくくなる欠
点がある。また、固体撮像素子を有するテレビカメラで
撮像する場合には、カメラの画素数を十分に多くするこ
とができないため、分解能がさらに低くなるとともに不
所望なモアレ縞が発生したりする欠点がある。In such endoscopic devices, the image guide is formed by bundling optical fibers with a cladding around the core, so the resolution is low, and especially when trying to reduce the diameter of the insertion section, the number of fibers increases. As a result, the resolution cannot be sufficiently increased, and since light is not transmitted between the fibers, a black mesh becomes visible, making it difficult to see, especially when magnified. Furthermore, when capturing an image with a television camera having a solid-state image sensor, the number of pixels of the camera cannot be sufficiently increased, so there is a drawback that the resolution becomes even lower and undesirable moire fringes occur.
このような欠点を除去するために、本願人は特開昭５８
−１６８０１５号公報において、イメージガイドの対物
側端部および接眼側端部とそれらの保持部材との間、あ
るいは対物レンズ系および接眼レンズ系とそれらの保持
部材との間にそれぞれ圧電素子を介挿してそれらを光軸
と直交する方向に振動させるようにした内視鏡装置を提
案している。In order to eliminate such drawbacks, the applicant has disclosed
- In Publication No. 168015, a piezoelectric element is inserted between the objective side end and the eyepiece side end of the image guide and their holding members, or between the objective lens system and the eyepiece system and their holding members. proposed an endoscope device that vibrates them in a direction perpendicular to the optical axis.
しかしながら、上述した特開昭５８−１６８０１５号公
報においては、本発明者らの種々の実験によれば次のよ
うな改良すべき問題点があることが判明した。すなわち
、この内視鏡装置にあっては、圧電素子を光軸と直交す
る方向に伸縮させているため、必要な変位量を得るため
には硬質の先端構成部を含む可撓性を有しない挿入先端
部の直７が大きくなり、被検者に苦痛を与えるという問
題がある。However, in the above-mentioned Japanese Patent Application Laid-Open No. 58-168015, various experiments conducted by the present inventors have revealed that the following problems should be improved. In other words, in this endoscope device, since the piezoelectric element is expanded and contracted in a direction perpendicular to the optical axis, it does not have flexibility including a hard tip component in order to obtain the necessary amount of displacement. There is a problem that the straight 7 of the insertion tip becomes large and causes pain to the subject.
このような問題を解決するため、本願人は特願昭６２−
９８４９７号において対物レンズ系およびイメージガイ
ドの対物側端部の少なくとも一方を、挿入部の長手方向
に延在する細長い圧電振動子によって光軸とほぼ直交す
る方向に振動させるようにした内視鏡装置を提案してい
る。この内視鏡装置によれば、圧電振動子が挿入部の長
手方向に延在しているので、可撓性を有しない挿入先端
部の直径を大きくすることなく十分な変位量が得られる
という利点があるが、他方では圧電振動子を挿入部長手
方向に延在して設けるため、先端構成部を含む可撓性を
有しない挿入先端部の長さが長くなり、その結果操作し
にくくなるとともに被検者に苦痛を与えてしまうという
改良すべき点があることが判明した。In order to solve such problems, the applicant filed a patent application in 1982-
No. 98497 discloses an endoscope device in which at least one of the objective lens system and the objective side end of the image guide is vibrated in a direction substantially perpendicular to the optical axis by an elongated piezoelectric vibrator extending in the longitudinal direction of the insertion section. is proposed. According to this endoscope device, since the piezoelectric vibrator extends in the longitudinal direction of the insertion section, a sufficient amount of displacement can be obtained without increasing the diameter of the insertion tip, which is not flexible. Although this method has advantages, on the other hand, since the piezoelectric vibrator is provided extending in the longitudinal direction of the insertion section, the length of the insertion tip, which is not flexible, including the tip component becomes long, and as a result, it becomes difficult to manipulate. At the same time, it was found that there was an issue that needed to be improved, as it caused pain to the subjects.
この発明は、このような従来の問題点に着目してなされ
たもので、先端構成部を含む可撓性を有しない挿入先端
部の径を太くしたり、長さを長くしたすすることなく、
対物側光学系およびイメージガイドの対物側端部を十分
な変位量で相対的に振動させることによって観察分解能
を向上できるよう適切に構成した内視鏡装置を提供する
ことを目的とする。This invention was made by focusing on such conventional problems, and it is possible to eliminate the need to increase the diameter or length of the insertion tip, which does not have flexibility, including the tip component. ,
It is an object of the present invention to provide an endoscope apparatus suitably configured to improve observation resolution by relatively vibrating an objective side optical system and an objective side end of an image guide by a sufficient amount of displacement.
上記目的を達成するため、この発明では対物側光学系と
イメージガイドの対物側端部、およびこのイメージガイ
ドの接眼側端部と接眼側光学系を同期して相対的に振動
させるようにした内視鏡装置において、対物側光学系ま
たはイメージガイドの対物側端部の光軸のまわりに延在
して、一端部を固定部材に、他端部を対物側光学系また
はイメージガイドの対物側端部にそれぞれ固定して圧電
振動子を設け、この圧電振動子により対物側光学系また
はイメージガイドの対物側端部を振動させるようにする
。In order to achieve the above-mentioned object, the present invention provides an internal structure in which the objective-side optical system and the objective-side end of the image guide, as well as the eyepiece-side end of the image guide and the eyepiece-side optical system, are vibrated relative to each other in synchronization. In a viewing device, it extends around the optical axis of the objective side end of the objective side optical system or image guide, with one end serving as a fixing member and the other end serving as the objective side end of the objective side optical system or image guide. A piezoelectric vibrator is fixed to each part, and the piezoelectric vibrator vibrates the objective side optical system or the objective side end of the image guide.
上記構成において、対物側光学系またはイメージガイド
の対物側端部を振動させる圧電振動子はその振動させる
部材の光軸のまわりに延在させるので、先端構成部を含
む可撓性を有しない挿入先端部の径を太くすることなく
その長さを十分長くでき、したがって十分な変位量を得
ることができるとともに、非可撓性の挿入先端部の長さ
を長くする必要もない。In the above configuration, the piezoelectric vibrator that vibrates the objective side end of the objective side optical system or the image guide is extended around the optical axis of the vibrating member, so that the insertion including the tip component does not have flexibility. The length of the distal end portion can be made sufficiently long without increasing the diameter thereof, and therefore a sufficient amount of displacement can be obtained, and there is no need to increase the length of the non-flexible insertion distal end portion.
第１図ＡおよびＢはこの発明の第１実施例の要部を示す
もので、第１図Ｂは第１図ＡのＩ−ｉ線断面図を表わす
。この内視鏡装置は対物レンズ系１、イメージガイド２
、ライトガイド３，３、鉗子チャ１．ンネル４および送
気・送水チャンネル５を有し、ライトガイド３，３から
の光によって照明された被観察物体の像を対物レンズ系
１によってイメージガイド２の物体側端面２ａに結像さ
せ、この像をイメージガイド２の図示しない接眼側端面
に形成して接眼レンズ系を介して肉眼により観察したり
、撮影レンズを有するテレビカメラで撮影してモニタ上
に映出し得るようになっているとともに、鉗子チャンネ
ル４から鉗子を挿入して被観察物体の組織を採取し得る
ようになっている。1A and 1B show essential parts of a first embodiment of the present invention, and FIG. 1B shows a sectional view taken along the line I-i of FIG. 1A. This endoscope device has an objective lens system 1, an image guide 2
, light guide 3, 3, forceps cha 1. The objective lens system 1 forms an image of the object to be observed, which is illuminated by light from the light guides 3 and 3, on the object side end surface 2a of the image guide 2. An image is formed on the eyepiece side end surface (not shown) of the image guide 2 and can be observed with the naked eye through an eyepiece lens system, or can be photographed with a television camera having a photographic lens and displayed on a monitor. The forceps can be inserted through the forceps channel 4 to collect the tissue of the object to be observed.
対物レンズ系１は保持部材６ａ、 ６ｂ、 ６ｃを介し
て金属等より成る硬質の先端構成部７に装着されている
とともに、その一部はイメージガイド２０対物側端面２
ａに直接固定されている。先端構成部７の先端部は対物
レンズ系１、ライトガイド３，３、鉗子チャンネル４お
よび送気・送水チャンネル５の開口を除いてゴム製の先
端カバー８で覆われており、後端部には湾曲部を構成す
る第１の節輪９が固定され、さらにこの第１の節輪９に
第２゜第３．−一一〇節輸が順次回動自在に連結されて
、これら湾曲部の節輪を操作部から可撓部を通してワイ
ヤにより操作することにより湾曲部を湾曲させて先端構
成部７の向きを変えるようになっている。先端構成部７
の後端部、湾曲部および可撓部は湾曲ゴム１０で覆われ
ており、この湾曲ゴム１０の先端部は糸縛りによって先
端構成部７の外周に固定されている。The objective lens system 1 is attached to a hard tip component 7 made of metal or the like via holding members 6a, 6b, and 6c, and a part of the objective lens system 1 is attached to the object side end surface 2 of the image guide 20.
It is directly fixed to a. The tip of the tip component 7 is covered with a tip cover 8 made of rubber, except for the openings of the objective lens system 1, light guides 3, 3, forceps channel 4, and air/water channel 5. A first node ring 9 constituting the curved portion is fixed, and second, third, and so on are fixed to this first node ring 9. - The 110 joints are connected in a sequentially movable manner, and the joint rings of these curved parts are manipulated by a wire from the operating part through the flexible part to bend the curved parts and change the direction of the tip component 7. It looks like this. Tip component 7
The rear end portion, the curved portion, and the flexible portion are covered with a curved rubber 10, and the tip portion of the curved rubber 10 is fixed to the outer periphery of the tip forming portion 7 by a thread tie.
イメージガイド２にはその対物側端部に口金２ｂが設け
られ、この口金２ｂの後端部から後方のイメージガイド
２の外周はチューブ１１によって覆われている。ライト
ガイド３，３も同様にそれらの出射側端部に口金３ａ、
３ａが設けられ、これら口金の後端部から後方はチュ
ーブによってそれぞれ覆われている。The image guide 2 is provided with a base 2b at its end on the object side, and the outer periphery of the image guide 2 rearward from the rear end of the base 2b is covered with a tube 11. Similarly, the light guides 3 and 3 also have a cap 3a at their output side end.
3a, each of which is covered from the rear end with a tube.
また、鉗子チャンネル４は先端構成部７に形成した開口
４ａと、この間口４ａに設けた口金４ｂと、操作部から
可撓部および湾曲部を通して延在し、一端部を口金４ｂ
に連結したチューブ１２とをもって構成されている。送
気・送水チャンネル５も同様に先端構成部７に開口を形
成し、この開口に口金５ａを介してチューブ１３を連結
して構成されている。The forceps channel 4 has an opening 4a formed in the distal end portion 7, a mouthpiece 4b provided in this opening 4a, and extends from the operating portion through the flexible portion and the curved portion, and has one end connected to the mouthpiece 4b.
The tube 12 is connected to the tube 12. Similarly, the air/water supply channel 5 is constructed by forming an opening in the tip component 7 and connecting the tube 13 to this opening via the base 5a.
この実施例ではイメージガイド２の物体側端部において
、その先軸のまわりで先端構成部７に固定した第１の節
輪９の内周に沿って延在して円状にバイモルフ１４を設
け、その一端部を第１の節輪９の内周面に半田により接
着固定し、他端部をイメージガイド２の物体側端部の口
金２ｂの外周面に同様に半田により接着固定する。この
ようにして、バイモルフ１４に所要の駆動電圧を印加し
てイメージガイ１−′２の物体側端部を振動させる。In this embodiment, a bimorph 14 is provided in a circular shape at the object side end of the image guide 2, extending around the tip axis along the inner circumference of the first nodal ring 9 fixed to the tip component 7. , one end thereof is adhesively fixed to the inner circumferential surface of the first nodal ring 9 by soldering, and the other end thereof is adhesively fixed to the outer circumferential surface of the base 2b at the object side end of the image guide 2 by soldering. In this way, a required drive voltage is applied to the bimorph 14 to vibrate the object side end of the image guy 1-'2.
なお、イメージガイド２の接眼側端部も、物体側端部と
同様に円状のバイモルフによって変位可能に支持して、
物体側端部と同期して振動させる。Note that the eyepiece side end of the image guide 2 is also movably supported by a circular bimorph like the object side end.
Vibrate in synchronization with the object side end.
この実施例によれば、バイモルフ１４を先端構成部７に
固定した第１の節輪９の内周に沿って円状に設けるよう
にしたので、その長さを十分長くでき、したがって十分
な変位量を得ることができるとともに、先端構成部７を
含む可撓性を有しない挿入先端部の径を太くすることな
く、かつその長さを長くすることもない。したがって、
挿入や検査にあたっての被検者の苦痛を軽減できるとと
もに、イメージガイド２の網目やモアレ縞の発生を有効
に防止でき、十分な分解能を得ることができる。According to this embodiment, since the bimorph 14 is provided in a circular shape along the inner circumference of the first nodal ring 9 fixed to the distal end component 7, its length can be made sufficiently long, so that sufficient displacement can be achieved. In addition, there is no need to increase the diameter or length of the non-flexible insertion tip including the tip component 7. therefore,
It is possible to reduce the pain of the subject during insertion and examination, and also to effectively prevent the occurrence of mesh and moire fringes in the image guide 2, and to obtain sufficient resolution.
第２図ＡおよびＢはこの発明の第２実施例の要部を示す
ものであり、第２図Ｂは第２図Ａの■−■線断面図を表
わす。この実施例では、イメージガイド２の対物側端部
を振動させるためのバイモルフ１４を、先端構成部７に
装着される対物レンズ系１の保持部材６Ｃの内周に沿っ
てイメージガイド２の対物側端部を巻回するように延在
して設け、その一端部を保持部材６Ｃの内周面に、他端
部をイメージガイド２の対物側端部の口金２ｂの外周面
にそれぞれ半田により接着固定したものである。イメー
ジガイド２の接眼側端部も、物体側端部と同様に、該端
部を巻回するように延在するバイモルフによって変位可
能に支持して、両端部を同期して振動させる。2A and 2B show essential parts of a second embodiment of the present invention, and FIG. 2B shows a sectional view taken along the line ■--■ in FIG. 2A. In this embodiment, the bimorph 14 for vibrating the object side end of the image guide 2 is placed along the inner circumference of the holding member 6C of the objective lens system 1 attached to the tip component 7 on the object side of the image guide 2. The end portions are provided so as to extend in a winding manner, and one end thereof is bonded to the inner circumferential surface of the holding member 6C, and the other end thereof is bonded to the outer circumferential surface of the base 2b at the object side end of the image guide 2 by soldering. It is fixed. Similarly to the object side end, the eyepiece side end of the image guide 2 is movably supported by a bimorph extending in a winding manner, and both ends are vibrated synchronously.
この実施例においては、バイモルフ１４をイメージガイ
ド２の対物側端部を巻回するように延在して設けたので
、第１実施例と同様その長さを十分長くでき、したがっ
て十分な変位量を得ることができるとともに、挿入先端
部の可撓性を有しない部分の径が太くなったり、またそ
の長さが長くなることもない。したがって、第１実施例
と同様の効果を得ることができる。In this embodiment, since the bimorph 14 is provided so as to extend around the object side end of the image guide 2, its length can be made sufficiently long as in the first embodiment, and therefore a sufficient amount of displacement can be obtained. In addition, the diameter of the non-flexible portion of the insertion tip does not become thick or the length thereof becomes long. Therefore, the same effects as in the first embodiment can be obtained.
なお、この発明は上述した実施例にのみ限定されるもの
ではなく、幾多の変形または変更が可能である。例えば
上述した実施例では、イメージガイド２の両端部を同期
して振動させるようにしたが、これに加えてその振動方
向とは異なる方向に対物レンズ系１と接眼レンズ系とを
同期して振動させたり、また対物レンズ系１と接眼レン
ズ系のみを、または対物レンズ系１とイメージガイド２
の接眼側端部のみを、あるいはイメージガイド２の対物
側端部と接眼レンズ系のみをそれぞれ同期して振動させ
るよう構成することもできる。また、バイモルフ１４を
用いる代わりに一枚の圧電振動子を用いることもできる
。Note that this invention is not limited only to the embodiments described above, and numerous modifications and changes are possible. For example, in the embodiment described above, both ends of the image guide 2 are vibrated synchronously, but in addition, the objective lens system 1 and the eyepiece system are synchronously vibrated in a direction different from the vibration direction. or only objective system 1 and eyepiece system, or objective system 1 and image guide 2.
It is also possible to vibrate only the eyepiece side end of the image guide 2 or only the object side end of the image guide 2 and the eyepiece lens system in synchronization with each other. Furthermore, instead of using the bimorph 14, a single piezoelectric vibrator can be used.
以上述べたように、この発明によれば対物側光学系また
はイメージガイドの対物側端部の光軸のまわりに延在し
て圧電振動子を設け、その一端部を固定部材に、他端部
を対物側光学系またはイメージガイドの対物側端部にそ
れぞれ固定して振動させるようにしたので、圧電振動子
の長さを非可撓性の挿入先端部の径を太くすることなく
十分長くでき、したがって十分な変位量を得ることがで
きるともに、その非可撓性の挿入先端部の長さが長くな
ることもない。したがって、被検者の苦痛を軽減でき、
かつイメージガイドの網目を有効に除去できるとともに
、モアレ縞の発生を有効に防止でき、分解能を向上させ
ることができる。As described above, according to the present invention, a piezoelectric vibrator is provided extending around the optical axis of the objective side end of the objective side optical system or image guide, one end of which is used as a fixing member, and the other end of the piezoelectric vibrator is provided as a fixing member. Since the piezoelectric vibrator is fixed to the objective side optical system or the objective side end of the image guide and is vibrated, the length of the piezoelectric vibrator can be made sufficiently long without increasing the diameter of the non-flexible insertion tip. Therefore, a sufficient amount of displacement can be obtained, and the length of the inflexible insertion tip does not become long. Therefore, the patient's pain can be reduced,
Moreover, the mesh of the image guide can be effectively removed, the occurrence of moiré fringes can be effectively prevented, and the resolution can be improved.
第１図ＡおよびＢはこの発明の第１実施例の要部を示す
図、
第２図ＡおよびＢは同じく第２実施例の要部を示す図で
ある。
１・・・対物レンズ系 ２・・・イメージガイド２
ａ・・・物体側端面 ２ｂ・・・口金３．３・・
・ライトガイド ３ａ、 ３ａ・・・口金４・・・鉗
子チャンネル ４ａ・・・開口４ｂ・・・口金
５・・・送気・送水チャンネルFIGS. 1A and 1B are diagrams showing the main parts of a first embodiment of the present invention, and FIGS. 2A and B are diagrams showing the main parts of the second embodiment. 1...Objective lens system 2...Image guide 2
a... Object side end surface 2b... Base 3.3...
・Light guide 3a, 3a...cap 4...forceps channel 4a...opening 4b...cap 5...air/water supply channel
Claims (1)
測光学系とイメージガイドの対物側端部、およびこのイ
メージガイドの接眼側端部と接眼側光学系を同期して相
対的に振動させるようにした内視鏡装置において、前記
対物側光学系またはイメージガイドの対物側端部の光軸
のまわりに延在して、一端部を固定部材に、他端部を当
該対物側光学系またはイメージガイドの対物側端部にそ
れぞれ固定して圧電振動子を設け、この圧電振動子によ
り前記対物側光学系またはイメージガイドの対物側端部
を振動させるよう構成したことを特徴とする内視鏡装置
。1. The objective optical measuring system installed at the tip of the insertion section inserted into the object to be observed, the objective side end of the image guide, and the eyepiece side end of this image guide and the eyepiece side optical system are synchronized and relative to each other. In an endoscope device configured to vibrate, the optical system extends around the optical axis of the objective side end of the objective side optical system or the image guide, with one end serving as a fixing member and the other end serving as the objective side optical system. A piezoelectric vibrator is provided fixed to the objective side end of the system or the image guide, and the piezoelectric vibrator vibrates the objective side end of the objective side optical system or the image guide. Viewing device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62134956A JPS63301015A (en) | 1987-06-01 | 1987-06-01 | Endoscope device |
| US07/183,223 US4867136A (en) | 1987-04-23 | 1988-04-19 | Endoscope apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62134956A JPS63301015A (en) | 1987-06-01 | 1987-06-01 | Endoscope device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63301015A true JPS63301015A (en) | 1988-12-08 |
Family
ID=15140503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62134956A Pending JPS63301015A (en) | 1987-04-23 | 1987-06-01 | Endoscope device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63301015A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5633754A (en) * | 1994-12-06 | 1997-05-27 | Hoogland; Jan | Integrated optical system for endoscopes and the like |
| JP2011050470A (en) * | 2009-08-31 | 2011-03-17 | Fujifilm Corp | Endoscope system |
| CN108882831A (en) * | 2016-03-31 | 2018-11-23 | 国立大学法人东北大学 | Optical imaging device |
-
1987
- 1987-06-01 JP JP62134956A patent/JPS63301015A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5633754A (en) * | 1994-12-06 | 1997-05-27 | Hoogland; Jan | Integrated optical system for endoscopes and the like |
| US5841578A (en) * | 1994-12-06 | 1998-11-24 | Hoogland; Jan | Integrated optical system for endoscopes and the like |
| US6545802B2 (en) | 1994-12-06 | 2003-04-08 | Jan Hoogland | Integrated optical system for endoscopes and the like |
| US7230756B2 (en) | 1994-12-06 | 2007-06-12 | Integrated Endoscopy, Inc. | Integrated optical system for endoscopes and the like |
| JP2011050470A (en) * | 2009-08-31 | 2011-03-17 | Fujifilm Corp | Endoscope system |
| CN108882831A (en) * | 2016-03-31 | 2018-11-23 | 国立大学法人东北大学 | Optical imaging device |
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