JP2006334043A - Distal end section of endoscope - Google Patents

Distal end section of endoscope Download PDF

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JP2006334043A
JP2006334043A JP2005160784A JP2005160784A JP2006334043A JP 2006334043 A JP2006334043 A JP 2006334043A JP 2005160784 A JP2005160784 A JP 2005160784A JP 2005160784 A JP2005160784 A JP 2005160784A JP 2006334043 A JP2006334043 A JP 2006334043A
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illumination
distal end
endoscope
pair
window
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JP4657013B2 (en
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Tomoshi Iwakawa
知史 岩川
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Pentax Corp
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Pentax Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a distal end section of an endoscope which controls the halation generated in an endoscope observation image and can improve an observation capability by constituting a direction of an illumination optical axis radiated from an illumination window to be variable without the increase in size of the distal end of an insertion section. <P>SOLUTION: A pair of transparent members 8 the opposed surfaces of which are formed into inclined planes inclined relative to a direction of an axis are disposed inside the illumination window 6 at an interval which is variable in the direction of the axis and the direction of the optical axis 6x of the illumination light radiated from the illumination window 6 is changed by changing the axial interval of the pair of the transparent members 8. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は内視鏡の先端部に関する。   The present invention relates to a distal end portion of an endoscope.

内視鏡の挿入部の先端には一般に、被写体に向かって照明光を放射するための照明窓と、その照明光が照射された被写体の光像を取り込むための観察窓とが配置されており、照明窓から放射される照明光の光軸方向は固定的なものである（例えば、特許文献１）。   In general, an endoscope window is provided with an illumination window for emitting illumination light toward the subject and an observation window for capturing a light image of the subject irradiated with the illumination light. The optical axis direction of the illumination light emitted from the illumination window is fixed (for example, Patent Document 1).

ただし、観察窓からの観察方向を可変にしたいわゆる視野変換式内視鏡等においては、観察方向に合わせて照明方向も可変にしたものがあり、挿入部先端に配置されたライトガイドファイババンドルの射出端を手元側からの遠隔操作で揺動させることができるように構成している（例えば、特許文献２）。
特開平５−６０９８５ 特開昭５２−７１８８８ However, in so-called field-of-view type endoscopes, etc., in which the observation direction from the observation window is variable, there are also those in which the illumination direction is variable according to the observation direction, and the light guide fiber bundle arranged at the distal end of the insertion portion The injection end is configured to be swingable by remote operation from the hand side (for example, Patent Document 2).
JP-A-5-60985 JP 52-71888 A

図９は、従来の内視鏡の挿入部の先端部分を示しており、挿入部９１の先端に連結された先端部本体９２の先端面に配置された観察窓９３内には、対物光学系９４と、その対物光学系９４により投影された被写体の像を撮像するための固体撮像素子９５等が内蔵されている。   FIG. 9 shows a distal end portion of an insertion portion of a conventional endoscope, and an objective optical system is provided in an observation window 93 disposed on the distal end surface of a distal end portion main body 92 connected to the distal end of the insertion portion 91. 94 and a solid-state imaging device 95 for capturing an image of the subject projected by the objective optical system 94 are incorporated.

そして、観察窓９３と並んで先端部本体９２の先端面に配置された照明窓９５内にはライトガイドファイババンドル９７の射出端面が配置されて、そのライトガイドファイババンドル９７から射出される照明光の配光角を広げるための凹レンズ９８が照明窓９５に嵌め込まれている。   An emission end face of the light guide fiber bundle 97 is arranged in the illumination window 95 arranged on the distal end surface of the distal end main body 92 along with the observation window 93, and the illumination light emitted from the light guide fiber bundle 97. A concave lens 98 for expanding the light distribution angle is fitted in the illumination window 95.

図１０に示されるように、体内粘膜面を内視鏡観察している時には反射光の具合により強いハレーションが発生する場合があり、そのような状況下ではモニタ画面９９においてハレーション部１００が部分的に明るく輝くため、その付近に患部が存在すると見落としが発生するおそれがある。   As shown in FIG. 10, there is a case where strong halation may occur due to the condition of reflected light when endoscopically observing the mucosal surface of the body. Under such circumstances, the halation unit 100 is partially displayed on the monitor screen 99. Therefore, if there is an affected part in the vicinity, there is a risk of oversight.

そこで、特許文献２に記載されているように、ライトガイドファイババンドルの射出端を揺動させて照明光軸の向きを変えることができるようにすれば、ハレーションが抑制されて患部の見落としを防止できる場合があるが、ライトガイドファイババンドルの射出端を揺動させるような構成をとると内視鏡の挿入部の先端が極めて大きくなってしまうため、患者の受ける苦痛が増大してしまう。   Therefore, as described in Patent Document 2, if the direction of the illumination optical axis can be changed by swinging the exit end of the light guide fiber bundle, halation is suppressed and oversight of the affected part is prevented. Although there is a case where it can be done, if the configuration is made such that the exit end of the light guide fiber bundle is swung, the distal end of the insertion portion of the endoscope becomes extremely large, which increases the suffering suffered by the patient.

そこで本発明は、照明窓から放射される照明光軸の向きを、挿入部の先端を大型化することなく可変に構成して、内視鏡観察像にハレーションが発生した場合にそれを抑制して観察能を向上させることができる内視鏡の先端部を提供することを目的とする。   Therefore, the present invention is configured so that the direction of the illumination optical axis radiated from the illumination window can be varied without increasing the size of the distal end of the insertion portion, and this is suppressed when halation occurs in the endoscopic observation image. It is an object of the present invention to provide a distal end portion of an endoscope that can improve observation performance.

上記の目的を達成するため、本発明の内視鏡の先端部は、内視鏡の挿入部の先端に、被写体に向かって照明光を放射するための照明窓と、照明光が照射された被写体の光像を取り込むための観察窓とが配置された内視鏡の先端部において、照明窓の内側に、対向面が軸線方向に対して傾いた斜面状に形成された一対の透明部材を軸線方向に間隔を可変に配置して、一対の透明部材の軸線方向間隔を変化させることにより照明窓から放射される照明光の光軸の向きが変わるようにしたものである。   In order to achieve the above object, the distal end portion of the endoscope of the present invention is irradiated with an illumination window for radiating illumination light toward the subject and the illumination light at the distal end of the insertion portion of the endoscope. At the distal end of the endoscope where an observation window for capturing a light image of a subject is arranged, a pair of transparent members formed on the inner side of the illumination window with inclined surfaces whose opposing surfaces are inclined with respect to the axial direction The direction of the optical axis of the illumination light emitted from the illumination window is changed by variably arranging the interval in the axial direction and changing the axial interval between the pair of transparent members.

なお、一対の透明部材より照明窓寄りの位置に凹レンズが配置されていてもよく、照明窓内の一対の透明部材の奥側に、ライトガイドの射出端面又は電気的光源が配置されていてもよい。   A concave lens may be disposed closer to the illumination window than the pair of transparent members, and the light guide exit end surface or the electrical light source may be disposed on the back side of the pair of transparent members in the illumination window. Good.

また、一対の透明部材の中の照明窓寄りに配置された透明部材の照明光入射面又は照明光射出面の少なくとも一方に凹面が形成されていてもよく、一対の透明部材の軸線方向間隔が、挿入部内に挿通配置された操作ワイヤ又は挿入部の先端に配置されたモータにより制御されるようにしてもよい。   In addition, a concave surface may be formed on at least one of the illumination light incident surface or the illumination light exit surface of the transparent member disposed near the illumination window in the pair of transparent members, and the axial distance between the pair of transparent members is The operation wire may be inserted into the insertion portion or may be controlled by a motor disposed at the distal end of the insertion portion.

本発明によれば、照明窓の内側に、対向面が軸線方向に対して傾いた斜面状に形成された一対の透明部材を軸線方向に間隔を可変に配置して、一対の透明部材の軸線方向間隔を変化させることにより照明窓から放射される照明光の光軸の向きが変わるようにしたので、照明窓から放射される照明光軸の向きを、挿入部の先端を大型化することなく可変に構成して、内視鏡観察像にハレーションが発生した場合にそれを抑制して観察能を向上させることができる。   According to the present invention, a pair of transparent members formed in the shape of a slope whose opposing surfaces are inclined with respect to the axial direction are arranged inside the illumination window, and the interval between the transparent members is variably set in the axial direction. Since the direction of the optical axis of the illumination light emitted from the illumination window is changed by changing the direction interval, the direction of the illumination optical axis emitted from the illumination window can be changed without increasing the tip of the insertion portion. It can be configured to be variable so that when halation occurs in the endoscopic observation image, it can be suppressed to improve the observation ability.

内視鏡の挿入部の先端に、被写体に向かって照明光を放射するための照明窓と、照明光が照射された被写体の光像を取り込むための観察窓とが配置された内視鏡の先端部において、照明窓の内側に、対向面が軸線方向に対して傾いた斜面状に形成された一対の透明部材を軸線方向に間隔を可変に配置して、一対の透明部材の軸線方向間隔を変化させることにより照明窓から放射される照明光の光軸の向きが変わるようにする。   An endoscope in which an illumination window for emitting illumination light toward the subject and an observation window for capturing a light image of the subject irradiated with the illumination light are arranged at the distal end of the insertion portion of the endoscope. At the front end, a pair of transparent members formed on the inner side of the illumination window in the shape of slopes whose opposing surfaces are inclined with respect to the axial direction are arranged in a variable manner in the axial direction, and the axial distance between the pair of transparent members By changing the direction of the optical axis of the illumination light emitted from the illumination window.

図面を参照して本発明の実施例を説明する。
図３は内視鏡の全体構成を示しており、可撓性の挿入部１の基端には操作部２が連結されていて、挿入部１の先端部分に形成された湾曲部３は、操作部２に配置された湾曲操作ノブ４を回転操作することにより任意の方向に任意の角度だけ屈曲させることができる。 Embodiments of the present invention will be described with reference to the drawings.
FIG. 3 shows the overall configuration of the endoscope. The operation portion 2 is connected to the proximal end of the flexible insertion portion 1, and the bending portion 3 formed at the distal end portion of the insertion portion 1 is By rotating the bending operation knob 4 disposed in the operation unit 2, the bending operation knob 4 can be bent at an arbitrary angle in an arbitrary direction.

挿入部１の最先端部に連結された先端部本体５には照明窓６等が配置されており、被写体を照明する照明光を伝達するためのライトガイドファイババンドル７の射出端面と照明窓６との間に一対の透明部材８が配置されている。   An illumination window 6 or the like is arranged on the distal end body 5 connected to the most distal end portion of the insertion portion 1, and the exit end face of the light guide fiber bundle 7 for transmitting illumination light for illuminating the subject and the illumination window 6. A pair of transparent members 8 are disposed between the two.

そして、挿入部１内に配置された操作ワイヤ９を操作部４に配置された操作レバー１０で進退操作することにより、一対の透明部材８間の間隔を変化させ、それによって照明窓６から放射される照明光の光軸の向きを変えることができる。   Then, by operating the operation wire 9 arranged in the insertion portion 1 with the operation lever 10 arranged in the operation portion 4, the distance between the pair of transparent members 8 is changed, thereby radiating from the illumination window 6. The direction of the optical axis of the illumination light can be changed.

図４は、挿入部１の先端部分を示しており、先端部本体５の先端面に配置された照明窓６には、照明光の配光角を広げるための凹レンズ６０が嵌め込まれて水密に接合固定されている。   FIG. 4 shows the distal end portion of the insertion portion 1. A concave lens 60 for expanding the light distribution angle of the illumination light is fitted into the illumination window 6 disposed on the distal end surface of the distal end portion body 5 so as to be watertight. Bonded and fixed.

一対の透明部材８は、対向面が軸線方向に対して傾いた斜面状に形成された光学ガラス製の断面形状が正円形のロッド状の部材であり、一対の透明部材８の中の先寄りに配置された固定ロッド８１は凹レンズ６０の後側に隣接して先端部本体５に固定されている。   The pair of transparent members 8 are rod-shaped members made of optical glass having opposing surfaces formed in a slanted shape inclined with respect to the axial direction and having a perfectly circular cross-sectional shape. The fixed rod 81 arranged on the front side is adjacent to the rear side of the concave lens 60 and is fixed to the tip end body 5.

一方、後寄りに配置された可動ロッド８２は、軸線方向に進退自在な可動枠１４に取り付けられてライトガイドファイババンドル７の射出端面と固定ロッド８１との間に配置されている。可動枠１４には操作ワイヤ９の先端が連結されている。   On the other hand, the movable rod 82 arranged on the rear side is attached to the movable frame 14 that is movable back and forth in the axial direction, and is arranged between the exit end face of the light guide fiber bundle 7 and the fixed rod 81. The distal end of the operation wire 9 is connected to the movable frame 14.

なお、透明部材８と凹レンズ６０は各々、軸線（光軸）がライトガイドファイババンドル７の射出端部の軸線の延長線上に位置するよう一直線上に配置されている。このような構成なので、照明窓６内に大きなスペースを必要とせず先端部本体５を小型に構成することができる。   The transparent member 8 and the concave lens 60 are arranged on a straight line such that the axis (optical axis) is positioned on the extension of the axis of the exit end of the light guide fiber bundle 7. Since it is such a structure, the front-end | tip part main body 5 can be comprised compactly without requiring a big space in the illumination window 6. FIG.

照明窓６と並んで先端部本体５の先端面に配置された観察窓１１の内側には、対物光学系１２と、照明窓６から放射された照明光が照射されて対物光学系１２により投影された被写体の投影像を撮像するための固体撮像素子１３等が配置されている。   The objective optical system 12 and the illumination light emitted from the illumination window 6 are irradiated inside the observation window 11 arranged on the distal end surface of the distal end body 5 along with the illumination window 6 and projected by the objective optical system 12. A solid-state image pickup device 13 for picking up the projected image of the subject is arranged.

そのような構成により、図４に示されるように可動ロッド８２が先端側に位置していて固定ロッド８１と密着した状態においては、ライトガイドファイババンドル７の射出端面から射出された照明光が途中で曲げられず、照明窓６から放射される照明光の光軸６ｘが真っ直ぐ前方に向かっている。   With such a configuration, as shown in FIG. 4, when the movable rod 82 is positioned on the distal end side and is in close contact with the fixed rod 81, the illumination light emitted from the emission end face of the light guide fiber bundle 7 is halfway. And the optical axis 6x of the illumination light emitted from the illumination window 6 is straight forward.

そして、操作ワイヤ９が操作部２側から牽引操作されて、図１に示されるように、可動ロッド８２が固定ロッド８１との間に隙間ができる状態に後退すると、照明窓６から放射される照明光の光軸６ｘが観察窓１１から遠ざかる外方向に曲がる。   Then, when the operation wire 9 is pulled from the operation unit 2 side and the movable rod 82 is retracted into a state where a gap is formed between the operation rod 9 and the fixed rod 81 as shown in FIG. The optical axis 6x of the illumination light is bent outwardly away from the observation window 11.

図２は、その状態を詳細に図示しており、固定ロッド８１と可動ロッド８２との間が空気層になることにより、その間で照明光軸が元の光軸Ｘ（以下、「基準軸線Ｘ」という）に対して偏角し、その結果固定ロッド８１への入射位置Ａが基準軸線Ｘから偏位して、固定ロッド８１内においては照明光軸が基準軸線Ｘに対して平行に偏位した状態になる。   FIG. 2 shows the state in detail, and an air layer is formed between the fixed rod 81 and the movable rod 82, so that the illumination optical axis is changed to the original optical axis X (hereinafter referred to as “reference axis X”). As a result, the incident position A on the fixed rod 81 is deviated from the reference axis X, and the illumination optical axis is deviated in parallel to the reference axis X in the fixed rod 81. It will be in the state.

すると、凹レンズ６０の凹面６１に対する入射位置Ｂにおいて照明光軸が外方向に曲がり、さらに凹レンズ６０の外面位置Ｃにおいても照明光軸がさらに外方向に曲がるので、照明窓６から放射される照明光の光軸６ｘが観察窓１１から遠ざかる外方向に曲がった状態になる。   Then, the illumination optical axis is bent outward at the incident position B with respect to the concave surface 61 of the concave lens 60, and the illumination optical axis is further bent outward at the outer surface position C of the concave lens 60, so that the illumination light emitted from the illumination window 6 is emitted. The optical axis 6x is bent in an outward direction away from the observation window 11.

したがって、照明窓６から放射される照明光の光軸６ｘが真っ直ぐの状態のときに内視鏡観察像に強いハレーションが発生する場合には、照明光の光軸６ｘを観察窓１１から遠ざかる外方向に曲げることによりハレーションの発生を抑制し、患部の見落とし等を防止することができる。   Therefore, when strong halation occurs in the endoscopic observation image when the optical axis 6x of the illumination light emitted from the illumination window 6 is straight, the outside of the optical axis 6x of the illumination light is moved away from the observation window 11. By bending in the direction, the occurrence of halation can be suppressed and oversight of the affected area can be prevented.

なお、本発明は上記実施例に限定されるものではなく、例えば、照明窓６内に配置される一対の透明部材８として、固定ロッド８１を後寄りに配置して可動ロッド８２を先寄りに配置しても差し支えない。   In addition, this invention is not limited to the said Example, For example, as a pair of transparent member 8 arrange | positioned in the illumination window 6, the fixed rod 81 is arrange | positioned back and the movable rod 82 is made forward. It can be placed.

また、図５及び図６に示される第２及び第３の実施例のように、一対の透明部材８の中の照明窓６寄りに位置している固定ロッド８１の照明光入射面又は照明光射出面の少なくとも一方に凹面８１ａ，８１ｂを形成することにより、照明窓６から放射される照明光の光軸６ｘをより大きく曲げることができる。   Further, as in the second and third embodiments shown in FIGS. 5 and 6, the illumination light incident surface or illumination light of the fixed rod 81 located near the illumination window 6 in the pair of transparent members 8. By forming the concave surfaces 81a and 81b on at least one of the exit surfaces, the optical axis 6x of the illumination light emitted from the illumination window 6 can be bent more greatly.

また、図７に示される第４の実施例のように、可動ロッド８２の駆動を操作ワイヤ９に代えてマイクロモータ２０等で行ってもよく、図８に示される第５の実施例のように、照明源としてライトガイドファイババンドル７に代えてＬＥＤ（発光ダイオード）７′等のような電気的光源を用いてもよい。   Further, as in the fourth embodiment shown in FIG. 7, the movable rod 82 may be driven by the micromotor 20 or the like instead of the operation wire 9, as in the fifth embodiment shown in FIG. In addition, instead of the light guide fiber bundle 7, an electric light source such as an LED (light emitting diode) 7 'may be used as an illumination source.

本発明の第１の実施例の内視鏡の挿入部の先端部分の側面断面図である。It is side surface sectional drawing of the front-end | tip part of the insertion part of the endoscope of 1st Example of this invention. 本発明の第１の実施例の内視鏡の照明光学系の側面断面図である。It is side surface sectional drawing of the illumination optical system of the endoscope of 1st Example of this invention. 本発明の第１の実施例の内視鏡の側面図である。It is a side view of the endoscope of the 1st example of the present invention. 本発明の第１の実施例の内視鏡の挿入部の先端部分の側面断面図である。It is side surface sectional drawing of the front-end | tip part of the insertion part of the endoscope of 1st Example of this invention. 本発明の第２の実施例の内視鏡の照明光学系の側面断面図である。It is side surface sectional drawing of the illumination optical system of the endoscope of the 2nd Example of this invention. 本発明の第３の実施例の内視鏡の照明光学系の側面断面図である。It is side surface sectional drawing of the illumination optical system of the endoscope of the 3rd Example of this invention. 本発明の第４の実施例の内視鏡の挿入部の先端部分の側面断面図である。It is side surface sectional drawing of the front-end | tip part of the insertion part of the endoscope of the 4th Example of this invention. 本発明の第５の実施例の内視鏡の挿入部の先端部分の側面断面図である。It is side surface sectional drawing of the front-end | tip part of the insertion part of the endoscope of the 5th Example of this invention. 従来の内視鏡の挿入部の先端部分の側面断面図である。It is side surface sectional drawing of the front-end | tip part of the insertion part of the conventional endoscope. 従来の内視鏡による内視鏡観察画像にハレーションが発生した状態の略示図である。It is a schematic diagram of a state where halation has occurred in an endoscopic observation image by a conventional endoscope.

符号の説明Explanation of symbols

６ 照明窓
６ｘ 照明光の光軸
７ ライトガイドファイババンドル
８ 透明部材
８１ 固定ロッド
８２ 可動ロッド
９ 操作ワイヤ
１１ 観察窓
１４ 可動枠
６０ 凹レンズ 6 illumination window 6x optical axis of illumination light 7 light guide fiber bundle 8 transparent member 81 fixed rod 82 movable rod 9 operation wire 11 observation window 14 movable frame 60 concave lens

Claims (5)

内視鏡の挿入部の先端に、被写体に向かって照明光を放射するための照明窓と、上記照明光が照射された被写体の光像を取り込むための観察窓とが配置された内視鏡の先端部において、
上記照明窓の内側に、対向面が軸線方向に対して傾いた斜面状に形成された一対の透明部材を上記軸線方向に間隔を可変に配置して、上記一対の透明部材の軸線方向間隔を変化させることにより上記照明窓から放射される照明光の光軸の向きが変わるようにしたことを特徴とする内視鏡の先端部。 An endoscope in which an illumination window for emitting illumination light toward the subject and an observation window for capturing a light image of the subject irradiated with the illumination light are arranged at the distal end of the insertion portion of the endoscope At the tip of
A pair of transparent members formed on the inner side of the illumination window with inclined surfaces inclined to the axial direction are arranged with variable spacing in the axial direction, and the axial distance between the pair of transparent members is set. A distal end portion of an endoscope, wherein the direction of the optical axis of illumination light emitted from the illumination window is changed by changing the direction. 上記一対の透明部材より上記照明窓寄りの位置に凹レンズが配置されている請求項１記載の内視鏡の先端部。   The distal end portion of the endoscope according to claim 1, wherein a concave lens is disposed closer to the illumination window than the pair of transparent members. 上記照明窓内の上記一対の透明部材の奥側に、ライトガイドの射出端面又は電気的光源が配置されている請求項１又は２記載の内視鏡の先端部。   The distal end portion of the endoscope according to claim 1 or 2, wherein an emission end face of the light guide or an electric light source is disposed on the back side of the pair of transparent members in the illumination window. 上記一対の透明部材の中の上記照明窓寄りに配置された透明部材の照明光入射面又は照明光射出面の少なくとも一方に凹面が形成されている請求項１、２又は３記載の内視鏡の先端部。   The endoscope according to claim 1, 2, or 3, wherein a concave surface is formed on at least one of an illumination light incident surface and an illumination light emission surface of the transparent member disposed near the illumination window in the pair of transparent members. The tip of the. 上記一対の透明部材の軸線方向間隔が、上記挿入部内に挿通配置された操作ワイヤ又は上記挿入部の先端に配置されたモータにより制御される請求項１、２、３又は４記載の内視鏡の先端部。   The endoscope according to claim 1, 2, 3, or 4, wherein an axial distance between the pair of transparent members is controlled by an operation wire inserted into the insertion portion or a motor disposed at a distal end of the insertion portion. The tip of the.
JP2005160784A 2005-06-01 2005-06-01 End of the endoscope Expired - Fee Related JP4657013B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010011916A (en) * 2008-07-01 2010-01-21 Fujinon Corp Endoscope

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569712A (en) * 1979-07-06 1981-01-31 Olympus Optical Co Ltd Visual field direction changing optical system for slender image transmission system
JPS6366526A (en) * 1986-09-09 1988-03-25 Olympus Optical Co Ltd Image forming optical system
JPS6378118A (en) * 1986-09-22 1988-04-08 Olympus Optical Co Ltd Electronic endoscope
JPH01114815A (en) * 1987-10-28 1989-05-08 Olympus Optical Co Ltd Optical device for endoscope
JPH0346611A (en) * 1989-07-14 1991-02-27 Dainippon Screen Mfg Co Ltd Multi-beam scanning optical device
JPH10161041A (en) * 1996-11-26 1998-06-19 Fuji Photo Film Co Ltd Light source device for endoscope
JP2002000550A (en) * 2000-06-20 2002-01-08 Univ Tokyo Intra-celom observation instrument
JP2002174785A (en) * 2000-12-08 2002-06-21 Ricoh Opt Ind Co Ltd Light beam regulation method for multibeam scanner as well as multibeam scanner and image forming device
JP2004147777A (en) * 2002-10-29 2004-05-27 Olympus Corp Endoscope

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569712A (en) * 1979-07-06 1981-01-31 Olympus Optical Co Ltd Visual field direction changing optical system for slender image transmission system
JPS6366526A (en) * 1986-09-09 1988-03-25 Olympus Optical Co Ltd Image forming optical system
JPS6378118A (en) * 1986-09-22 1988-04-08 Olympus Optical Co Ltd Electronic endoscope
JPH01114815A (en) * 1987-10-28 1989-05-08 Olympus Optical Co Ltd Optical device for endoscope
JPH0346611A (en) * 1989-07-14 1991-02-27 Dainippon Screen Mfg Co Ltd Multi-beam scanning optical device
JPH10161041A (en) * 1996-11-26 1998-06-19 Fuji Photo Film Co Ltd Light source device for endoscope
JP2002000550A (en) * 2000-06-20 2002-01-08 Univ Tokyo Intra-celom observation instrument
JP2002174785A (en) * 2000-12-08 2002-06-21 Ricoh Opt Ind Co Ltd Light beam regulation method for multibeam scanner as well as multibeam scanner and image forming device
JP2004147777A (en) * 2002-10-29 2004-05-27 Olympus Corp Endoscope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010011916A (en) * 2008-07-01 2010-01-21 Fujinon Corp Endoscope

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