JP3120869B2 - Endoscope tip - Google Patents

Endoscope tip

Info

Publication number
JP3120869B2
JP3120869B2 JP03173512A JP17351291A JP3120869B2 JP 3120869 B2 JP3120869 B2 JP 3120869B2 JP 03173512 A JP03173512 A JP 03173512A JP 17351291 A JP17351291 A JP 17351291A JP 3120869 B2 JP3120869 B2 JP 3120869B2
Authority
JP
Japan
Prior art keywords
circuit board
distal end
solid
imaging device
signal cable
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 - Fee Related
Application number
JP03173512A
Other languages
Japanese (ja)
Other versions
JPH04317622A (en
Inventor
慶時 伊藤
Original Assignee
旭光学工業株式会社
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 旭光学工業株式会社 filed Critical 旭光学工業株式会社
Priority to JP03173512A priority Critical patent/JP3120869B2/en
Publication of JPH04317622A publication Critical patent/JPH04317622A/en
Application granted granted Critical
Publication of JP3120869B2 publication Critical patent/JP3120869B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00096—Optical elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/0011—Manufacturing of endoscope parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • A61B1/051—Details of CCD assembly
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2423—Optical details of the distal end
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G02B23/2484—Arrangements in relation to a camera or imaging device
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2423—Optical details of the distal end
    • G02B23/243—Objectives for endoscopes

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】この発明は、挿入部先端内に固体
撮像素子を設けた内視鏡の先端部に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distal end portion of an endoscope having a solid-state imaging device provided at the distal end of an insertion portion.

【０００２】[0002]

【従来の技術】挿入部先端に固体撮像素子を設けた場合
には、駆動回路などを配線した回路基板をその近くに配
置する必要がある。2. Description of the Related Art When a solid-state imaging device is provided at the tip of an insertion portion, it is necessary to arrange a circuit board on which a drive circuit and the like are wired near.

【０００３】そのような回路基板は、内視鏡の挿入部の
断面を塞いでしまわないよう、最近は可撓性のある板を
折り曲げて、先端部本体の軸方向に対して平行に配置さ
れる。そして、回路基板から後方へ、挿入部内に信号ケ
ーブルが引き通される。Recently, such a circuit board is bent in a flexible plate so as not to block the cross section of the insertion portion of the endoscope, and is arranged in parallel with the axial direction of the distal end body. You. Then, the signal cable is drawn into the insertion section backward from the circuit board.

【０００４】[0004]

【発明が解決しようとする課題】このような内視鏡を人
体腔内の検査などに使用する際には、挿入部が全体的に
曲げられる。特に、先端側に形成されて遠隔操作により
屈曲される湾曲部は、小さな曲率半径で頻繁に曲げられ
る。When such an endoscope is used for examining a human body cavity or the like, the insertion portion is bent as a whole. In particular, a curved portion formed on the distal end side and bent by remote control is frequently bent with a small radius of curvature.

【０００５】すると、その度に信号ケーブルに引張り、
押し、ねじれ等の力が加わるので、くり返し使用してい
るうちに、回路基板が破損したり電気的な故障が発生し
ていた。Then, each time, the signal cable is pulled,
Since a force such as pushing or twisting is applied, the circuit board is damaged or an electrical failure occurs during repeated use.

【０００６】そこで本発明は、回路基板の破損や回路基
板での電気的故障の発生しない耐久性の優れた内視鏡の
先端部を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a highly durable endoscope end which does not cause breakage of a circuit board or electrical failure in the circuit board.

【０００７】[0007]

【課題を解決するための手段】上記の目的を達成するた
め、本発明の内視鏡の先端部は、挿入部先端に設けられ
た先端部本体に内蔵された対物光学系と、上記対物光学
系の後端部に固着された固体撮像素子と、上記固体撮像
素子を取り付けて上記先端部本体の軸方向と略平行に配
置された可撓性のある回路基板と、上記回路基板に先端
が固着されて後方に引き通された信号ケーブルと、前部
側において上記対物光学系と上記固体撮像素子とに固着
され、後部側において上記回路基板にその長手方向に沿
って固着された補強部材とを設けたことを特徴とする。In order to achieve the above object, the distal end of the endoscope according to the present invention comprises an objective optical system built in a distal end body provided at the distal end of the insertion portion, and an objective optical system. A solid-state image sensor fixed to the rear end of the system, a flexible circuit board to which the solid-state image sensor is attached and which is arranged substantially in parallel with the axial direction of the tip body, and a tip of the circuit board A signal cable fixed to the rear side, and a reinforcing member fixed to the objective optical system and the solid-state imaging device on the front side and fixed to the circuit board on the rear side along the longitudinal direction thereof; Is provided.

【０００８】[0008]

【実施例】図面を参照して実施例を説明する。An embodiment will be described with reference to the drawings.

【０００９】図１は、内視鏡の挿入部先端を示してい
る。図中１は、挿入部を形成する細長い可撓管の先端に
形成された湾曲部であり、複数の節輪２がリベット３に
よって回動自在に連結されていろ。その外周は、金属細
線製の網状管４及びゴム製の外皮チューブ５によって被
覆されている。FIG. 1 shows the distal end of the insertion portion of the endoscope. In the figure, reference numeral 1 denotes a curved portion formed at the distal end of an elongated flexible tube forming an insertion portion, and a plurality of node rings 2 are rotatably connected by rivets 3. The outer periphery is covered with a mesh tube 4 made of a thin metal wire and a skin tube 5 made of rubber.

【００１０】遠隔的に牽引操作される湾曲操作ワイヤ７
は、各節輪２から内方に突設されたワイヤガイド８内に
進退自在に挿通されている。そして、各湾曲操作ワイヤ
７の先端は、ワイヤガイド８に銀ロー付けなどによって
固着されている。９は、ワイヤガイド８の端部に銀ロー
付けなどによって固着された、抜け止め用のストッパパ
イプである。A bending operation wire 7 which is remotely pulled and operated.
Are inserted in a wire guide 8 projecting inward from each node ring 2 so as to be able to advance and retreat. The distal end of each bending operation wire 7 is fixed to the wire guide 8 by silver brazing or the like. Reference numeral 9 denotes a stopper pipe for securing the wire guide 8, which is fixed to the end of the wire guide 8 by silver brazing or the like.

【００１１】１１は、連絡筒１２を介して湾曲部１の先
端に連結された先端部本体であり、金属製の胴部１１ｂ
と、その先端部分に接合された電気絶縁性プラスチック
製の頭部１１ａとにより形成されている。Reference numeral 11 denotes a distal end main body connected to the distal end of the bending portion 1 via a connecting cylinder 12, and a metallic body 11b.
And a head 11a made of an electrically insulating plastic and joined to a tip portion thereof.

【００１２】先端部本体１１は先端側（図１の左方）か
ら見て円形の断面形状をしており、頭部１１ａ内に対物
レンズ群１３が内蔵されている。The distal end body 11 has a circular cross-sectional shape when viewed from the distal end side (left side in FIG. 1), and the objective lens group 13 is built in the head 11a.

【００１３】対物レンズ群１３は複数のレンズによって
構成されており、その軸方向は先端部本体１１の軸方向
と一致していて、前方（図１の左方）の物体が被写体と
なる。観察窓１４は、対吻レンズ群１３の最先端のレン
ズによって形成されている。The objective lens group 13 is composed of a plurality of lenses. The axial direction of the objective lens group 13 coincides with the axial direction of the distal end body 11, and an object in front (to the left in FIG. 1) is the subject. The observation window 14 is formed by the state-of-the-art lens of the anastomotic lens group 13.

【００１４】１５及び１６は、対物レンズ群１３の各レ
ンズが嵌め込み接着された鏡枠であり、外側の鏡枠１５
が先端部本体の頭部１１ａに接合されている。１７は明
るさ絞り。１８はシール用のＯリングである。Reference numerals 15 and 16 denote lens frames into which the lenses of the objective lens group 13 are fitted and adhered.
Is joined to the head 11a of the tip body. 17 is the aperture stop. Reference numeral 18 denotes an O-ring for sealing.

【００１５】鏡枠１６の後半部に接続された接続筒３４
内には、遮光用マスク３７と色補正フィルタ３５とロー
パスフィルタ３６とが固着されており、ローパスフィル
タ３６の後端面には直角プリズム３３が接合されてい
て、これらと対物レンズ群１３とによって対物光学系が
形成されている。A connecting cylinder 34 connected to the rear half of the lens frame 16
A light-shielding mask 37, a color correction filter 35, and a low-pass filter 36 are fixed inside, and a right-angle prism 33 is bonded to the rear end surface of the low-pass filter 36. An optical system is formed.

【００１６】そして、対物光学系の後端に位置する直角
プリズム３３の出射面側に、固体撮像素子３１が、対物
光学系に対する芯出し調整をして接合されている。固体
撮像素子３１としては、例えばＣＣＤ（電荷結合素子）
が用いられる。A solid-state image sensor 31 is joined to the exit surface of the right-angle prism 33 located at the rear end of the objective optical system so as to adjust the centering of the objective optical system. As the solid-state imaging device 31, for example, a CCD (Charge Coupled Device)
Is used.

【００１７】このようにして、対物レンズ群１３の光軸
が、直角プリズム３３によって直角に側方に曲げられ
て、観察像が固体撮像素子３１の受像面３１ａに結像す
る。In this manner, the optical axis of the objective lens group 13 is bent laterally at right angles by the right-angle prism 33, and an observation image is formed on the image receiving surface 31a of the solid-state image sensor 31.

【００１８】照明用ライトガイドファイババンドル２１
の出射端部２１ａは、軸を対物レンズ群１３と平行にし
て、先端部本体の頭部１１ａに固着されている。そし
て、その端面には、出射される照明光の配光角度を拡げ
るための配光レンズ（凹レンズ）２２が配置されてい
る。Light guide fiber bundle 21 for illumination
The emission end 21a is fixed to the head 11a of the distal end body with its axis parallel to the objective lens group 13. A light distribution lens (concave lens) 22 for increasing the light distribution angle of the emitted illumination light is disposed on the end face.

【００１９】このようにして配光レンズ２２が照明窓２
３を形成しており、照明用ライトガイドファイババンド
ル２１中を伝送されてきた照明光によって、先端部本体
１１の前方の被写体が照明される。As described above, the light distribution lens 22 is connected to the illumination window 2.
The illumination light transmitted through the illumination light guide fiber bundle 21 illuminates a subject in front of the distal end portion main body 11.

【００２０】図２は、先端部本体の頭部１１ａの正面図
である。ここに示されるように、照明窓２３は２カ所に
設けられ、その内側に各々ライトガイドファイババンド
ル２１が配置されている。２４は、先検鉗子その他の処
置具類を突出させるための処置具出口。２５及び２６は
送気ノズル及び送水ノズルである。FIG. 2 is a front view of the head 11a of the tip body. As shown here, the illumination windows 23 are provided at two locations, and the light guide fiber bundles 21 are arranged inside the illumination windows 23, respectively. 24 is a treatment tool outlet for projecting forceps and other treatment tools. 25 and 26 are an air supply nozzle and a water supply nozzle.

【００２１】なお、図３に示されるように、接続筒３４
及びその内側の光学素子類は、必要のない無駄な部分を
カットして、略正方形に形成されている。２７及び２８
は、送気管路及び送水管路。２９は、処置具挿通管路
（鉗子チャンネル）である。Note that, as shown in FIG.
The optical elements and the like inside are formed in a substantially square shape by cutting unnecessary portions that are not necessary. 27 and 28
Is the air supply line and the water supply line. Reference numeral 29 denotes a treatment instrument insertion conduit (forceps channel).

【００２２】図１に戻って、固体撮像素子３１を取り付
けた回路基板４０は、素材として一枚の可撓性のある電
気絶縁性プラスチック板が用いられている。Returning to FIG. 1, the circuit board 40 on which the solid-state image sensor 31 is mounted is made of a single flexible electrically insulating plastic plate as a material.

【００２３】回路基板４０は、先端部本体１１の軸方向
と平行に配置され、その可撓性を活かして図４に示され
るように、軸方向に沿って三つ折りに折り曲げられ、そ
の内部に電気絶縁性の接着剤が充填されている。４１
は、回路基板４０に取り付けられた、駆動回路などを構
成する電子部品である。The circuit board 40 is arranged in parallel with the axial direction of the distal end body 11, and is folded into three along the axial direction as shown in FIG. It is filled with an electrically insulating adhesive. 41
Is an electronic component that is attached to the circuit board 40 and that constitutes a drive circuit and the like.

【００２４】そして、回路基板４０の後端部分には、後
方に引き通された信号ケーブル４３のリード線４４の先
端が、はんだ付けされて固着されている。信号ケーブル
４３は、細長い挿入部全長にわたって挿通されていて、
固体撮像素子３１と外部に設けられたビデオプロセッサ
（図示せず）との間で信号を伝送する。The front end of the lead wire 44 of the signal cable 43 passed rearward is fixed to the rear end of the circuit board 40 by soldering. The signal cable 43 is inserted through the entire length of the elongated insertion portion,
A signal is transmitted between the solid-state imaging device 31 and a video processor (not shown) provided outside.

【００２５】４８は、回路基板４０の耐久吐を向上させ
るための補強部材であり、接着性のよい金属、例えば黄
銅材によって形成されている。そして、補強部材４８の
前部側は直角プリズム３３の反射面の裏面と固体撮像素
子３１の受像面３１ａの周辺とに接合固着され、後部側
は、回路基板４０の長手方向に沿って長く形成されてい
て、回路基板４０の外面に、比較的広い面積で接合固着
されている。Reference numeral 48 denotes a reinforcing member for improving the durability of the circuit board 40, and is formed of a metal having good adhesiveness, for example, a brass material. The front side of the reinforcing member 48 is bonded and fixed to the back surface of the reflection surface of the right-angle prism 33 and the periphery of the image receiving surface 31a of the solid-state imaging device 31, and the rear side is formed to be long along the longitudinal direction of the circuit board 40. It is bonded and fixed to the outer surface of the circuit board 40 with a relatively large area.

【００２６】本実施例においては、もしこの補強部材４
８が存在しなくても、対物光学系１３，３５，３６，３
３と固体撮像素子３１と回路基板４０とは、一つのユニ
ットとして一応固着連結されている。In this embodiment, if the reinforcing member 4
8 does not exist, the objective optical systems 13, 35, 36, 3
3, the solid-state imaging device 31, and the circuit board 40 are temporarily fixedly connected as one unit.

【００２７】しかし、この補強部材４８とそれらとを接
合することによって、全体が一体的な強固なユニットと
なる。特に、補強部材４８の後部側は回路基板４０に沿
って形成されていて且つ接合されているので、信号ケー
ブル４３等から伝わってくる力によっては、回路基板４
０は容易に変形しない。However, by joining the reinforcing members 48 to each other, the whole becomes a unitary and strong unit. In particular, since the rear side of the reinforcing member 48 is formed along the circuit board 40 and is joined thereto, depending on the force transmitted from the signal cable 43 and the like, the circuit board 4
0 does not deform easily.

【００２８】また、補強部材４８は、先端部本体１１の
有効スペースを狭めてしまわないように、直角プリズム
３３と回路基板４０との間の凹部を利用して、主にその
内部に配置されている。そして、この補強部材４８は、
図１及び図５に示されるように、先端部本体１１の胴部
１１ｂに小ねじ４９によって押圧固定されている。Further, the reinforcing member 48 is mainly disposed inside by utilizing a concave portion between the right-angle prism 33 and the circuit board 40 so as not to narrow the effective space of the distal end body 11. I have. And this reinforcing member 48
As shown in FIGS. 1 and 5, the distal end body 11 is pressed and fixed to the body 11 b of the distal end body 11 by small screws 49.

【００２９】[0029]

【発明の効果】本発明の内視鏡の先端部によれば、可撓
性のある回路基板が補強部材によって対物光学系及び固
体撮像素子と一体化されているので、信号ケーブルから
加わる力によって回路基板が簡単には変形せず、くり返
しの使用によっても回路基板の破損や電気的な故障が発
生しない優れた耐久性を得ることができる。According to the distal end portion of the endoscope of the present invention, since the flexible circuit board is integrated with the objective optical system and the solid-state image pickup device by the reinforcing member, the flexible circuit board is formed by the force applied from the signal cable. The circuit board is not easily deformed, and excellent durability can be obtained in which the circuit board is not damaged or an electrical failure occurs even by repeated use.

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

【図１】実施例の側面断面図である。FIG. 1 is a side sectional view of an embodiment.

【図２】実施例の正面図である。FIG. 2 is a front view of the embodiment.

【図３】実施例のＩＩＩ−ＩＩＩ断面図である。FIG. 3 is a sectional view taken along line III-III of the embodiment.

【図４】実施例のＩＶ−ＩＶ断面図である。FIG. 4 is a sectional view taken along line IV-IV of the embodiment.

【図５】実施例のＶ−Ｖ断面図である。FIG. 5 is a sectional view taken along line VV of the embodiment.

【符号の説明】[Explanation of symbols]

１１ 先端部本体 １３ 対物レンズ群 ３１ 固体撮像素子 ３３ 直角プリズム ４０ 回路基板 ４３ 信号ケーブル ４８ 補強部材 DESCRIPTION OF SYMBOLS 11 Front-end | tip part main body 13 Objective lens group 31 Solid-state image sensor 33 Right-angle prism 40 Circuit board 43 Signal cable 48 Reinforcement member

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】挿入部先端に設けられた先端部本体に内蔵
された対物光学系と、 上記対物光学系の後端部に配置されたプリズムに固着さ
れて上記先端部本体の軸方向と略平行に配置された固体
撮像素子と、 上記固体撮像素子を取り付けて上記先端部本体の軸方向
と略平行に上記プリズムの後方に配置された可撓性のあ
る回路基板と、 上記回路基板に先端が固着されて後方に引き通された信
号ケーブルと、 前部側は上記プリズムと上記回路基板との間の隙間にほ
ぼ嵌まり込む形状に形成されて上記プリズムの裏面部分
と上記固体撮像素子の受像面以外の部分とに固着され、
後部側は上記回路基板に沿って後方に延出する板状に形
成されて上記回路基板に固着された剛性材料からなる補
強部材とを設けたことを特徴とする内視鏡の先端部。1. An objective optical system built in a distal end main body provided at a distal end of an insertion portion, and fixed to a prism disposed at a rear end of the objective optical system and substantially in the axial direction of the distal end main body. A solid-state imaging device arranged in parallel, a flexible circuit board to which the solid-state imaging device is attached, and which is arranged behind the prism substantially in parallel with an axial direction of the tip main body; The signal cable is secured to the signal cable, and the signal cable extends rearward.
It is formed in a shape that fits tightly and is fixed to the back surface portion of the prism and a portion other than the image receiving surface of the solid-state imaging device,
The rear side is shaped like a plate extending rearward along the circuit board.
Distal portion of the endoscope made is to be characterized by providing an auxiliary <br/> strength member made of solid wear stiffness material on the circuit board.
JP03173512A 1991-04-15 1991-04-15 Endoscope tip Expired - Fee Related JP3120869B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03173512A JP3120869B2 (en) 1991-04-15 1991-04-15 Endoscope tip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03173512A JP3120869B2 (en) 1991-04-15 1991-04-15 Endoscope tip

Publications (2)

Publication Number Publication Date
JPH04317622A JPH04317622A (en) 1992-11-09
JP3120869B2 true JP3120869B2 (en) 2000-12-25

Family

ID=15961903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03173512A Expired - Fee Related JP3120869B2 (en) 1991-04-15 1991-04-15 Endoscope tip

Country Status (1)

Country Link
JP (1) JP3120869B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6411679B1 (en) * 1999-09-17 2002-06-25 Verizon Laboratories Inc. Apparatus and method for call progress timing measurement in IP telephony
JP5041925B2 (en) 2007-08-31 2012-10-03 オリンパスメディカルシステムズ株式会社 Imaging unit
WO2011092903A1 (en) * 2010-02-01 2011-08-04 オリンパスメディカルシステムズ株式会社 Image pickup unit for endoscope
JP5189209B2 (en) * 2010-02-01 2013-04-24 オリンパスメディカルシステムズ株式会社 Endoscope structure of endoscope
JP5558399B2 (en) * 2011-03-30 2014-07-23 富士フイルム株式会社 Endoscopic imaging device
JP6464106B2 (en) * 2016-01-27 2019-02-06 富士フイルム株式会社 Endoscopic imaging apparatus and endoscope
WO2018198247A1 (en) * 2017-04-26 2018-11-01 オリンパス株式会社 Endoscope, image capturing module, and method for manufacturing image capturing module

Also Published As

Publication number Publication date
JPH04317622A (en) 1992-11-09

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