JPH0143685Y2 - - Google Patents
Info
- Publication number
- JPH0143685Y2 JPH0143685Y2 JP10072382U JP10072382U JPH0143685Y2 JP H0143685 Y2 JPH0143685 Y2 JP H0143685Y2 JP 10072382 U JP10072382 U JP 10072382U JP 10072382 U JP10072382 U JP 10072382U JP H0143685 Y2 JPH0143685 Y2 JP H0143685Y2
- Authority
- JP
- Japan
- Prior art keywords
- eyepiece
- frame
- mask
- lens system
- relay lens
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 13
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
【考案の詳細な説明】
本考案は、像伝達手段としてリレーレンズ系を
使用した内視鏡における対象物の光学像と、視野
絞りの像とを共に鮮明に見えるようにした硬性内
視鏡に関する。[Detailed description of the invention] The present invention relates to a rigid endoscope that uses a relay lens system as an image transmission means so that both the optical image of the object and the image of the field diaphragm can be clearly seen. .
近年、体腔内に細長の挿入部を挿入することに
より、体腔内臓器等を観察したり、必要に応じ鉗
子チヤンネル内を挿通した鉗子を用いて生体内組
織を採取して患部を詳しく診断したりすることの
できる医療用の内視鏡が広く用いられている。
又、工業用分野においても、ボイラ、化学プラン
ト類等の管内の状態を観察あるいは管内表面の付
着物を採取して検査する等保守面にも内視鏡が利
用されている。 In recent years, by inserting a long and thin insertion section into a body cavity, organs within the body cavity can be observed, and if necessary, in-vivo tissues can be collected using forceps inserted through the forceps channel to diagnose the affected area in detail. Medical endoscopes are widely used.
Furthermore, in the industrial field, endoscopes are also used for maintenance purposes, such as observing the condition inside pipes of boilers, chemical plants, etc., or collecting and inspecting deposits on the inner surfaces of pipes.
上記内視鏡には挿入部が軟性で、湾曲できる構
造の軟性内視鏡と、挿入部が硬性で略直線状の硬
性内視鏡がある。 The above-mentioned endoscopes include flexible endoscopes that have a flexible insertion section and a bendable structure, and rigid endoscopes that have a rigid insertion section that is approximately linear.
これら内視鏡においては、挿入部が挿入した
際、手元側に供給された照明光を伝達して挿入部
先端側の対象物側に照明光を出射する照明光学系
と、該照明光学系によつて照明された対象物を挿
入部先端側に配設された対物レンズ系で結像し、
像伝達手段にて手元側の接眼レンズ系側に伝達
し、該接眼レンズ系後方から観察できるように構
成された観察光学系とが配設されている。 These endoscopes include an illumination optical system that transmits the illumination light supplied to the proximal side when the insertion section is inserted and emits the illumination light to the object at the distal end of the insertion section; The object thus illuminated is imaged by an objective lens system disposed at the distal end of the insertion tube,
An observation optical system configured to transmit an image to the eyepiece system on the hand side using an image transmission means and to enable observation from behind the eyepiece system is provided.
上記像伝達手段として、殆んどの硬性内視鏡に
おいて解像力の優れたリレーレンズ系が採用され
ており、該リレーレンズ系で接眼レンズ系前方に
伝達結像された光学像は、視野絞りで形成された
所定の視野範囲で観察できるように構成されてい
る。 As the image transmission means, most rigid endoscopes use a relay lens system with excellent resolution, and the optical image transmitted to the front of the eyepiece system by the relay lens system is formed by a field diaphragm. The camera is configured so that it can be observed within a predetermined field of view.
従来のリレーレンズ系を用いた硬性内視鏡にお
いては、視野絞りとなる中央に開口部を設けたマ
スクを貼り付けるマスク枠と、接眼レンズ系を収
納する接眼レンズ枠とを一体に構成し、対象物の
光学像が最良に見える状態となるように、前記マ
スクと接眼レンズ系とを同時に移動して調整して
いた。 In a rigid endoscope using a conventional relay lens system, a mask frame to which a mask with an opening in the center that serves as a field stop is pasted, and an eyepiece frame that houses an eyepiece system are integrally constructed. The mask and the eyepiece lens system are simultaneously moved and adjusted so that the optical image of the object is best viewed.
しかしながら、収差等を極力少くするため、接
眼レンズ系のレンズの枚数が増加すると、レンズ
の寸法のばらつき、レンズ間隔のばらつき等の多
くのばらつきの累計が増すため、マスク及び接眼
レンズ系とを同時に移動させることによつては両
者の像、つまり対象物の像と、マスクの（視野範
囲の境界となる部分の）像とを共に鮮明に観察で
きる状態に一致させることが不可能となる。 However, in order to minimize aberrations, etc., when the number of lenses in the eyepiece system increases, the cumulative total of many variations such as variations in lens dimensions and lens spacing increases, so the mask and the eyepiece system are combined at the same time. By moving it, it becomes impossible to make both images, that is, the image of the object and the image of the mask (at the boundary of the viewing range) coincident so that they can be clearly observed.
そのため対象物の像が最良に見えるように調整
すると、マスクの像（若しくはマスク境界付近の
像）がぼけ、又マスクの像が最良に見えるように
調整すると、対象物の像がぼけ、観察者が非常に
観察しずらく、観察者の眼が非常に疲れてしま
う。 Therefore, if the image of the object is adjusted so that it looks best, the image of the mask (or the image near the mask boundary) will be blurred, and if the image of the mask is adjusted so that it looks best, the image of the object will be blurred, and the It is very difficult to observe, and the observer's eyes get very tired.
さらに、内視鏡にカメラを取り付けて撮影した
フイルム面上の像も視野の中央部側にピントを合
わせてあると、視野の境界側が、ピントの合つて
いないマスク内周の影響で、境界周辺の対象物の
光学像も、ぼけてしまうことになり、非常に見づ
らいものとなる。 Furthermore, if the image on the film surface taken with a camera attached to an endoscope is focused on the center side of the field of view, the border side of the field of view will be affected by the out-of-focus inner circumference of the mask. Optical images of surrounding objects also become blurred, making them extremely difficult to see.
本考案は上述した点にかんがみてなされたもの
で、リレーレンズ系を接眼レンズ系との間に視野
絞りを配置した硬性内視鏡において、リレーレン
ズ系と視野絞りとの間隔を調整可能とすると共
に、接眼レンズ系と視野絞りとの間隔を調整可能
にすることにより、対象物が視野中央側と周辺側
共に最良に見えるように設定可能とする硬性内視
鏡を提供することを目的とする。 The present invention has been developed in view of the above-mentioned points, and is intended to make it possible to adjust the distance between the relay lens system and the field diaphragm in a rigid endoscope in which the field diaphragm is arranged between the relay lens system and the eyepiece system. In addition, it is an object of the present invention to provide a rigid endoscope that can be set so that an object can be best seen both at the center and at the periphery of the field of view by making the distance between the eyepiece system and the field diaphragm adjustable. .
以下、図面を参照して本考案の具体的に説明す
る。 Hereinafter, the present invention will be specifically explained with reference to the drawings.
第１図及び第２図は、本考案の第１実施例に係
り、第１図は第１実施例の外形全体を示し、第２
図は第１図における本体部の要部の断面を拡大し
て示す。 1 and 2 relate to a first embodiment of the present invention, FIG. 1 shows the entire outline of the first embodiment, and FIG.
The figure shows an enlarged cross-section of the main part of the main body in FIG.
第１実施例の硬性内視鏡１は、先端側に対物レ
ンズ系と、該対物レンズ系で結像された光学像を
手元後方側に伝達するリレーレンズ系２とを収容
した細長の挿入部３と、該挿入部３後端側に太径
で、側部にライトガイド口金４を穿設した本体部
５と、該本体部５後端に接続され後方側に向つて
拡径となるアイピース６とより構成されている。 The rigid endoscope 1 of the first embodiment has an elongated insertion section that houses an objective lens system on the distal end side and a relay lens system 2 that transmits an optical image formed by the objective lens system to the rear side of the hand. 3, a main body part 5 having a large diameter on the rear end side of the insertion part 3 and a light guide cap 4 bored in the side part, and an eyepiece connected to the rear end of the main body part 5 and having a diameter increasing toward the rear side. 6.
前記挿入部３には、外部の光源装置に接続した
図示しないライトガイドケーブルを介して導かれ
た照明光を、挿入部３先端側に伝え、その端面か
ら出射するライトガイド（図示せず）が配設され
ている。 The insertion section 3 includes a light guide (not shown) that transmits illumination light guided via a light guide cable (not shown) connected to an external light source device to the distal end side of the insertion section 3 and emits it from the end surface. It is arranged.
上記挿入部３内には図示しない対物レンズ系で
結像された光学像を伝達するリレーレンズ系２を
組み込んだレンズパイプ７が挿通され、該レンズ
パイプ７の後端はリング状ないし筒状の枠体８内
周に嵌合し、溶接等により固定されている。 A lens pipe 7 incorporating a relay lens system 2 for transmitting an optical image formed by an objective lens system (not shown) is inserted into the insertion section 3, and the rear end of the lens pipe 7 has a ring-shaped or cylindrical shape. It fits into the inner periphery of the frame 8 and is fixed by welding or the like.
上記リレーレンズ系２は、レンズパイプ７内に
リレーレンズ２（リレーレンズ系と同一符号で示
す。）を順次挿入し、間隔環（スペーサ）にてそ
れぞれ所定の間隔に保ち、最終段のリレーレンズ
２は、前記枠体８の後端内周面に形成した雌ねじ
に螺合する雄ねじを外周に形成し、後端が内側方
向に突出する突縁部を設けたリング状のリレーレ
ンズ押え部材９によつて押圧され、リレーレンズ
系２全体が、固定されるように構成されている。 The relay lens system 2 is constructed by sequentially inserting the relay lenses 2 (indicated by the same reference numerals as the relay lens system) into a lens pipe 7, keeping them at a predetermined distance using a spacer, and then inserting the relay lenses 2 (indicated by the same reference numerals as the relay lens system) into a lens pipe 7. Reference numeral 2 denotes a ring-shaped relay lens holding member 9, which has a male thread formed on its outer periphery to be screwed into a female thread formed on the inner peripheral surface of the rear end of the frame 8, and has a protruding edge portion whose rear end protrudes inward. The entire relay lens system 2 is configured to be fixed by being pressed by.
上記枠体８の外周には後端側に雄ねじが形成さ
れていて、該枠体８の外周前端側にその内周前端
が嵌合し、該内周前端に隣接する略中央付近の内
周に雌ねじが形成されたリング状ないし筒状の保
持部材１０が前記枠体８の外周後端側に形成した
前記雄ねじに螺合し、前端側のねじ孔に螺合する
固定ビス１１にて枠体８に固定できるように構成
されている。 A male thread is formed on the rear end side of the outer periphery of the frame 8, and the front end of the inner periphery fits into the front end of the outer periphery of the frame 8, and the inner periphery near the approximate center adjacent to the front end of the inner periphery A ring-shaped or cylindrical holding member 10 having a female thread formed therein is screwed into the male thread formed on the rear end side of the outer periphery of the frame body 8, and is secured to the frame by a fixing screw 11 screwed into a threaded hole on the front end side. It is configured so that it can be fixed to the body 8.
上記保持部材１０の後端内周に、その前端内周
が嵌合するマスク枠１２が、保持部材１０後端外
周のねじ孔に螺合し、内側のマスク枠１２に形成
した横溝を押圧する固定ビス１３にて保持部材１
０及びリング状ないし筒状のマスク枠１２とを一
体的に固定できるように構成されている。 The mask frame 12 whose front end inner periphery fits into the rear end inner periphery of the holding member 10 is screwed into a screw hole on the rear end outer periphery of the holding member 10 and presses a lateral groove formed in the inner mask frame 12. Holding member 1 with fixing screw 13
0 and a ring-shaped or cylindrical mask frame 12 can be integrally fixed.
上記マスク枠１２の前端近傍の内周には内側方
向への突縁部１４が形成され、該突縁部１４前周
面に貼り付ける等して視野絞りとなる中央に円状
等の開口部を設けたマスク１５が取り付けられる
ようになつている。このマスク枠１２の後端側は
段部状に若干拡径にされて、一方前端側外周が該
マスク枠１２内周に嵌合し、この嵌合する部分に
隣接する外周部分に雄ねじを形成したリング状な
いし筒状の接眼レンズ枠１６が、同様に螺合及び
固定ビス１７にてマスク枠１２と接眼レンズ枠１
６とを固定できるように構成されている。 An inward projecting edge 14 is formed on the inner periphery near the front end of the mask frame 12, and a circular opening or the like is formed in the center of the projecting edge 14 to form a field diaphragm by pasting it on the front circumferential surface of the projecting edge 14. A mask 15 provided with this can be attached. The rear end side of this mask frame 12 is slightly enlarged in diameter in a step-like manner, while the outer periphery of the front end side fits into the inner periphery of the mask frame 12, and a male thread is formed on the outer periphery adjacent to this fitting part. The ring-shaped or cylindrical eyepiece frame 16 is connected to the mask frame 12 and the eyepiece frame 1 by screwing and fixing screws 17 in the same way.
6 can be fixed.
上記接眼レンズ枠１６は、前端内周側に係止用
の突縁部が形成され、該突縁部に第１の接眼レン
ズ１８の片面が当接し、その他方の面に間隔環１
９を介して第２の接眼レンズ２０の片面が当接
し、その他方の面にはさらに間隔環２１を介して
最終段としての第３の接眼レンズ、（つまり接眼
後玉）２２の片面が当接し、該第３の接眼レンズ
２２の他方の面は接眼レンズ枠１６後端外周に形
成した雄ねじに螺合する雌ねじを前端内周に形成
し、後端に突縁部を形成した接眼レンズ押え部材
２３にて押圧し、この場合三組の接眼レンズ１
８，２０，２２で形成されている接眼レンズ系２
４を固定するように構成されている。 The eyepiece frame 16 has a locking projecting edge formed on the inner peripheral side of the front end, one side of the first eyepiece 18 comes into contact with the projecting edge, and a spacing ring 1 is placed on the other side.
One surface of the second eyepiece 20 is brought into contact with the other surface via the spacer ring 21, and one surface of the third eyepiece (that is, the rear eyepiece) 22 as the final stage is brought into contact with the other surface through the spacing ring 21. The other surface of the third eyepiece 22 is provided with an eyepiece holder having a female thread formed on the inner periphery of the front end to be screwed into a male thread formed on the outer periphery of the rear end of the eyepiece frame 16, and a projecting edge formed on the rear end. In this case, three sets of eyepiece lenses 1 are pressed together by the member 23.
Eyepiece system 2 formed by 8, 20, 22
4 is configured to be fixed.
このように構成された本考案の第１実施例にお
いては、リレーレンズ系２と一体化された枠体８
と、マスク１５を取付けたマスク枠１２と一体化
される保持部材１０が、螺合によつて、例えばリ
レーレンズ系２後端面とマスク１５との間隔L1
が可変調整できるように構成されていると共に、
同様に螺合によつてマスク１５と接眼レンズ系２
４前面との間隔L2が可変調整できるように構成
されている点が、その特徴となつている。 In the first embodiment of the present invention configured in this way, the frame body 8 integrated with the relay lens system 2
The holding member 10, which is integrated with the mask frame 12 to which the mask 15 is attached, is screwed together to maintain the distance L 1 between the rear end surface of the relay lens system 2 and the mask 15, for example.
is configured so that it can be variably adjusted, and
Similarly, the mask 15 and the eyepiece system 2 are screwed together.
Its characteristic feature is that it is constructed so that the distance L 2 between the front surface and the front surface of the front surface can be variably adjusted.
このように構成された本考案の第１実施例の動
作を以下に説明する。 The operation of the first embodiment of the present invention constructed in this manner will be described below.
先ず各リレーレンズ２をレンズパイプ７内に挿
入後、間隔環でそれぞれ所定の間隔に保ち、最終
段（最終部）のリレーレンズ２をリレーレンズ押
え部材９によつて押圧し、リレーレンズ系２全体
を固定する。 First, after each relay lens 2 is inserted into the lens pipe 7, each is maintained at a predetermined interval with a spacing ring, and the relay lens 2 in the final stage (final part) is pressed by the relay lens holding member 9, and the relay lens system 2 Fix the whole thing.
同様に、接眼レンズ枠１６内に接眼レンズ１
８，２０を間隔環１９，２１でそれぞれ所定の間
隔に保ち、最後部の接眼レンズ２２を接眼レンズ
押え部材２３を介して固定することにより、接眼
レンズ系２４を固定する。 Similarly, the eyepiece 1 is placed inside the eyepiece frame 16.
The eyepiece system 24 is fixed by keeping the eyepieces 8 and 20 at predetermined intervals with spacing rings 19 and 21, respectively, and fixing the rearmost eyepiece lens 22 via an eyepiece holding member 23.
次に該接眼レンズ系２４を組み込んだ接眼レン
ズ枠１６と、マスク１５を貼り付けたマスク枠１
２とを該マスク１５が最良に見える状態となるよ
うに両者を螺合移動する量を調整し、その状態で
固定ビス１７にて固定する。 Next, the eyepiece frame 16 incorporating the eyepiece system 24 and the mask frame 1 to which the mask 15 is attached
2 and 2, adjust the amount by which they are screwed together so that the mask 15 looks best, and then fix it with the fixing screw 17 in that state.
一方、枠体８に保持部材１０をねじ込むように
して枠体８の外周に保持部材１０（の前端側）を
嵌合させ、該保持部材１０の後方から後端側に接
眼レンズ枠１６を固定した前記マスク枠１２を嵌
合させ、所定位置にて固定ビス１７によつて固定
する。 On the other hand, by screwing the holding member 10 into the frame body 8, the holding member 10 (the front end side thereof) is fitted to the outer periphery of the frame body 8, and the eyepiece frame 16 is fixed from the rear side of the holding member 10 to the rear end side. The mask frame 12 thus prepared is fitted and fixed at a predetermined position with fixing screws 17.
このように保持部材１０、マスク枠１２及び接
眼レンズ枠１６を一体化した状態で、枠体８に対
し、保持部材１０の螺合する量を調整し、リレー
レンズ系２を経て伝達結像される光学像が最良に
見える位置に調整し、固定ビス１１によつて固定
する。この場合、マスク１５は接眼レンズ系２４
後方から常に最良の状態で観察できる状態に固定
されているので、リレーレンズ系２を経て光学像
が最良に見える位置に調整し、固定した状態は両
者共に最良の状態で観察できる位置である。 With the holding member 10, mask frame 12, and eyepiece frame 16 integrated in this way, the amount of screwing of the holding member 10 into the frame 8 is adjusted, and the transmission image is formed via the relay lens system 2. Adjust the optical image to a position where it can be seen best, and fix it with the fixing screw 11. In this case, the mask 15 is connected to the eyepiece system 24.
Since it is fixed in a state where it can always be observed in the best condition from the rear, the optical image is adjusted to the position where it can be best seen through the relay lens system 2, and the fixed state is the position where both can be observed in the best state.
尚、上記調整によつてマスク１５に形成した方
向指示用あるいは写真撮影の際の表裏判別用の指
標が所定の位置からずれた方向となる場合には、
固定ビス１３を緩め、マスク枠１２側を回動（回
転）して所定の位置にてあらためて固定すれば良
い。 Note that if the above adjustment causes the direction indicator formed on the mask 15 or the indicator for distinguishing front and back during photography to be in a direction that deviates from the predetermined position,
What is necessary is to loosen the fixing screw 13, pivot (rotate) the mask frame 12 side, and fix it again at a predetermined position.
このように調整して固定された光学系を有する
だ１実施によれば、視野内の対象物は、その中央
及び周辺に到るまで鮮明に観察可能となる。 According to a single embodiment having an optical system adjusted and fixed in this way, the object within the field of view can be clearly observed up to its center and periphery.
第３図は、第２実施例における本体部５要部を
示す。 FIG. 3 shows the main parts of the main body 5 in the second embodiment.
同図に示すように、枠体８′及び保持部材１
０′は、第１実施例の螺合により移動調整できる
部分が、嵌合により移動できるように構成される
と共に、マスク枠１２′と接眼レンズ枠１６′にお
いても同様に嵌合により移動できるようになつて
いる。 As shown in the figure, the frame body 8' and the holding member 1
0' is configured such that the portion of the first embodiment whose movement can be adjusted by screwing is movable by fitting, and the mask frame 12' and eyepiece frame 16' are also movable by fitting. It's getting old.
この他の部分は、第１実施例と同一の構成であ
る。 The other parts have the same configuration as the first embodiment.
本実施例においては、上記嵌合により移動でき
るようにしてあるので、固定する機能が不足する
ならば、必要に応じ、固定ビスで固定する箇所を
増加させるようにすれば良い。 In this embodiment, it is possible to move by the above-mentioned fitting, so if the fixing function is insufficient, the number of locations to be fixed with fixing screws may be increased as necessary.
この第２実施例の作用効果は第１実施例を略同
様のものとなる。 The effects of this second embodiment are substantially the same as those of the first embodiment.
尚、第２実施例において、嵌合挿入の際の内周
及び外周となる部材間にそれぞれ凹部及び凸部を
形成しても良い。 In the second embodiment, recesses and protrusions may be formed between the members that become the inner and outer peripheries during fitting and insertion, respectively.
又、第２実施例においては、保持部材１０′と
マスク枠１２′とはマスク１５取り付けた後に接
着剤等で一体化しても良い。 Further, in the second embodiment, the holding member 10' and the mask frame 12' may be integrated with adhesive or the like after the mask 15 is attached.
さらに、第１実施例と第２実施例とを組合わせ
た場合のもの、例えば第２実施例における二つの
嵌合部の一方のみを螺合部としたものも本考案の
範疇に入るものである。 Furthermore, a combination of the first embodiment and the second embodiment, for example, one in which only one of the two fitting parts in the second embodiment is a threaded part, also falls within the scope of the present invention. be.
以上述べたように本考案によれば、リレーレン
ズ系後端と視野絞りとの間隔を調整可能とすると
共に、視野絞りと接眼レンズ系との間隔とを調整
可能にしてあるので、各部材におけるばらつきが
あつても、視野内の対象物を、中央のみならず周
辺部に至るまで常に鮮明に観察できるように設定
できるという利点を有する。 As described above, according to the present invention, the distance between the rear end of the relay lens system and the field diaphragm can be adjusted, and the distance between the field diaphragm and the eyepiece lens system can be adjusted. Even if there are variations, it has the advantage that it can be set so that objects within the field of view can always be clearly observed not only at the center but also at the periphery.
第１図及び第２図は本考案の第１実施例に係り
第１図は第１実施例の硬性内視鏡の外観を示す側
面図、第２図、第１図における本体部の要部を拡
大して示す断面図、第３図は本考案の第２実施例
における本体部の要部を示す断面図である。
１……硬性内視鏡、２……リレーレンズ系、３
……挿入部、５……本体部、６……アイピース、
７……レンズパイプ、８……枠体、９……リレー
レンズ押え部材、１０……保持部材、１１，１
３，１７……固定ビス、１１２……マスク枠、１
５……マスク、１６……接眼レンズ枠、１８，２
０，２２……接眼レンズ、１９，２１……間隔
環、２３……接眼レンズ押え部材、２４……接眼
レンズ系。
1 and 2 relate to the first embodiment of the present invention. FIG. 1 is a side view showing the external appearance of the rigid endoscope of the first embodiment, and main parts of the main body in FIGS. 2 and 1. FIG. 3 is a cross-sectional view showing the main part of the main body in the second embodiment of the present invention. 1... Rigid endoscope, 2... Relay lens system, 3
...insertion section, 5...body section, 6...eyepiece,
7... Lens pipe, 8... Frame body, 9... Relay lens holding member, 10... Holding member, 11, 1
3, 17...Fixing screw, 112...Mask frame, 1
5...Mask, 16...Eyepiece frame, 18,2
0, 22...Eyepiece lens, 19, 21...Eyepiece ring, 23...Eyepiece holding member, 24...Eyepiece system.
Claims (1)
ーレンズ系で後方に伝達し、視野絞り後方に配設
された接眼レンズ系後方から観察できるように構
成された硬性内視鏡において、リレーレンズ系後
端と視野絞りとの間隔を調整可能とすると共に、
前記視野絞りと接眼レンズ系との間隔を調整可能
にしたことを特徴とする硬性内視鏡。 In a rigid endoscope configured so that the optical image of the object formed by the objective optical system is transmitted to the rear by a relay lens system and can be observed from behind the eyepiece system arranged behind the field diaphragm, the relay In addition to making it possible to adjust the distance between the rear end of the lens system and the field stop,
A rigid endoscope characterized in that the distance between the field stop and the eyepiece system is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10072382U JPS597423U (en) | 1982-07-02 | 1982-07-02 | rigid endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10072382U JPS597423U (en) | 1982-07-02 | 1982-07-02 | rigid endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS597423U JPS597423U (en) | 1984-01-18 |
| JPH0143685Y2 true JPH0143685Y2 (en) | 1989-12-19 |
Family
ID=30238149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10072382U Granted JPS597423U (en) | 1982-07-02 | 1982-07-02 | rigid endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS597423U (en) |
-
1982
- 1982-07-02 JP JP10072382U patent/JPS597423U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS597423U (en) | 1984-01-18 |
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