JPS5868708A - Endoscope device - Google Patents

Endoscope device

Info

Publication number
JPS5868708A
JPS5868708A JP56168145A JP16814581A JPS5868708A JP S5868708 A JPS5868708 A JP S5868708A JP 56168145 A JP56168145 A JP 56168145A JP 16814581 A JP16814581 A JP 16814581A JP S5868708 A JPS5868708 A JP S5868708A
Authority
JP
Japan
Prior art keywords
guide
month
light
connector
light source
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
Application number
JP56168145A
Other languages
Japanese (ja)
Inventor
Tadahiko Ogasawara
小笠原 忠彦
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 Corp
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 Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP56168145A priority Critical patent/JPS5868708A/en
Publication of JPS5868708A publication Critical patent/JPS5868708A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4296Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources

Abstract

PURPOSE:To protect light quides against the heat of illuminating light without decreasing the quantity of incident light to the light quides, by deviating the rear end parts of the light quides from the focal position of the illuminating light when said parts are heated to a temp. higher than prescribed temps. CONSTITUTION:When the connector 16 of an endoscope is connected to a light source device 13, the illuminating light from a light source lamp 19 is focused with an elliptical concave mirror 20, and is made incident to a light guide 11 consisting of an optical fiber located in the 2nd focus thereof from its end face and heats the guide 11 and a connector guide 17 consisting of a shape storage alloy or a material of a large coefft. of thermal expansion holding the guide 11. When the guide 17 is heated to a temp. higher than the prescribed temp. lower than the temp. at which the guide 11 and an adhesive 18 are thermally damaged, the guide 17 expands by the length DELTAL and its end face deviates from the 2nd focus together with the guide 11. Thus the thermal damages of the quides 11, 17 and the adhesive 18 are prevented.

Description

【発明の詳細な説明】 この発明は照明光が入射するライトガイドの端部全照明
光の熱から保護するようにした内祝腕装置ばに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inner arm device that protects the entire end of a light guide into which illumination light is incident from the heat of the illumination light.

一般に、内伐蜆装置は、挿入部と操作部とからなる内祝
娩本俸と、上d己操作部処一端金運軸し末端VCコネク
タが設けられたユニバーサルコードおよびこのユニバー
ザルコードのコネクタが接続される光源装置とからなる
。そして、光源装置で発生ずる照明光が上り己ユニバー
サルコード、操作部および挿入部の全体にわたって押通
された光学繊維束からなるライトガイPによって導かれ
、このライトガイドの先端部が対向する±6己挿入都に
形成された照明窓からIjj射するようになっている。
In general, an internal delivery device consists of an insertion section and an operating section, a universal cord with one end connected to the operating section and a VC connector at the end, and a connector of this universal cord connected. It consists of a light source device. Then, the illumination light generated by the light source device is guided by a light guide P consisting of an optical fiber bundle pushed through the universal cord, the operation part, and the insertion part, and the tip of this light guide is Ijj is designed to emit light from a lighting window formed at the insertion point.

上1己ライトガイドの後端部に、コネクタに矢数された
筒状のコネクタガイドに通され接看削によりこのコネク
タガイドに固定されている。そして、コネクタ全光源装
置に接続すると、上6己コネクタガイドの端面が、光源
装置に内蔵された第1の焦点に照明光を出力する″/T
S源ランプが配置された悄円凹面鈍の第2の焦点に位置
する。したがって、上記楕円四囲説によって染末された
it+明光が上6己ライトガイドの後端面から入射する
ようになっている。
The upper light guide is passed through a cylindrical connector guide which is connected to the connector at the rear end of the light guide, and is fixed to the connector guide by touching and grinding. When the connector is connected to the light source device, the end face of the upper connector guide outputs illumination light to the first focal point built into the light source device.''/T
The S source lamp is located at the second focal point of the concave obtuse located. Therefore, it+bright light dyed according to the above-mentioned ellipse theory enters from the rear end surface of the upper light guide.

ところで、このような構成の内視鏡装置dに訃いて、上
i己光源うンft/′i観察および撮影を良好に行なえ
るよう非常に光逮の多いものが用いらnでいる。そのた
め、H(1ψ」光が集束される十F)円四聞鋭の第2の
焦点に位置するコネクタガイドの端面ば、上記照ψJ光
によって冒温度に加熱されることが避けられないので、
この熱によりライトガイドを構成する光学繊維やこのラ
イトガイドをコネクタガイドに固定した接′yu削が熱
偵するということがある。
By the way, in the endoscope apparatus d having such a configuration, a light source with a very large amount of light is used to enable good observation and photographing. Therefore, the end face of the connector guide located at the second focal point of the 10F circle and four sharp edges where the H (1ψ) light is focused will inevitably be heated to an excessive temperature by the above-mentioned ψJ light.
This heat may cause the optical fibers constituting the light guide and the joints that fixed the light guide to the connector guide to become heated.

このような欠点を除去するl’Cめに、上記う1トガイ
ドの端面を悄1」凹面鋭の第2の焦点力)らずらしたり
、実開昭50−102344号公報に示されているよう
にライトガイドの後端部に冷ム1」用フィンを取f」げ
、このフィンを送気装置で冷却するなどのことが行なわ
れている。しかしながら、目i1者の場合はフィトガイ
ドに入射する光昂が%VC低ドすることV(なるから、
観察や撮影を良好に行なうことができなりという欠点が
めり、後者の場合は冷却用フィンや送気装置が必要とな
るため、コスト局や装置g全体が大形化するなどの欠虞
がある。
In order to eliminate such defects, the end face of the above-mentioned second guide may be shifted by 1" (the second focusing force of the concave surface is sharp), or as shown in Japanese Utility Model Application No. 102344/1983. In addition, fins for the cold air 1" are attached to the rear end of the light guide, and these fins are cooled by an air supply device. However, in the case of eyes i1, the light incident on the phytoguide will be %VC lower (because
The disadvantage is that observation and photography cannot be performed well, and in the latter case, cooling fins and air supply equipment are required, which increases the size of the cost station and the entire device. .

この元明は土6己事情にもとづきなされたもので、その
目的とするところは、ライトガイドの後端部が所定温度
以上VLC加熱されたときに、上dじライトガイドの端
面が照明光の焦点伯+ft 7)”らずれるようeこし
て、ライトガイドへの入射光蛍金′帛時減少させること
なく、シかも1珀単な構成で上す己ライトガイドを照明
光の熱から保護1−ることかできるようVCシた内祝鏡
装置全提供することにある。
This original idea was made based on the circumstances, and the purpose is that when the rear end of the light guide is heated by VLC to a predetermined temperature or higher, the end face of the light guide will be exposed to the illumination light. Focal point + ft 7) It is possible to protect the light guide from the heat of the illumination light by shifting the light guide with a simple structure without reducing the incident light on the light guide. - We provide a complete VC mirror device for you to use.

以下、この発明の一実施例を図面を参照して説明する。An embodiment of the present invention will be described below with reference to the drawings.

図中1は挿入部2と操作部3とからなる内規腕木1本で
ある。上W挿入部2はb」読・ρ都4の先端N& by
、部5か設けられてなり、この先端構成↑5ISsの先
端部しこは戴祭窓6と照明窓7か形jJkさノシている
。上o己駅祭窓6は操作部3に眩けtっれた接眼部8と
図示せぬイメーノガイドを介して光学的V(暖続されて
いて、この接眼部8刀・ら体腔餐9を叡祭することかで
きるようになっている。よだ、上記照りj窓7にrJX
仲人都2、操作部3およびこの操作部3に一端を連結し
たユニバーサルコード1oの全体にわたって挿通された
光学棟維東からなるライトガ1ド11の先端部が8に一
4同しでいる。上記ユニバーツルコード10の他端には
光源装置a13のソケット部14KCリング15f)介
して候枕されるコネクタ16が収けられてbる。こ0コ
ネクタ16の篩1面にCま曲状のコネクタガイド17が
突設されていて、このコネクタガイド17に上記ライト
ガイド11の後端部が伸延されて接盾削18により固定
逼れている。上ム己コネクタガイド17は加熱されると
膨張し冷却δれるともとに戻る釡属、たとえば形状S己
憶分釜や熱膨張係数の大きな材料によって形成されてい
で、I″J1足温度板温度以上熱3れると七の艮δが第
2図にボすようにΔLだけ伸びるようになっている。7
zわち、コネクタガイド171/ニライトガイド1ノや
接后倉り18が黙煩する渦j廷に逆する前VC膨5にす
るよ5− うになっている。
In the figure, reference numeral 1 denotes one internal control arm consisting of an insertion section 2 and an operating section 3. Upper W insertion part 2 is "b" reading, tip of ρ capital 4 N & by
, a portion 5 is provided, and the tip of this tip configuration ↑5ISs has a crowning window 6 and a lighting window 7 or a shape jJk. The window 6 is connected to the operating section 3 by an optical V (warming) via an eyepiece section 8 and an image guide (not shown). It is now possible to worship the body cavity 9. Yoda, rJX on the above teri j window 7
The tips of the light guides 11, which are made up of the optical module ITO, are inserted over the entirety of the matchmaker capital 2, the operating section 3, and the universal cord 1o whose one end is connected to the operating section 3. A connector 16 is housed at the other end of the universal cord 10, which is inserted into the socket 14 of the light source device a13 via a KC ring 15f). A C-shaped connector guide 17 is protruded from the sieve 1 surface of the connector 16, and the rear end of the light guide 11 is extended to the connector guide 17 and fixed by a shield cutter 18. There is. The upper connector guide 17 is made of a pot that expands when heated and returns to its original size when cooled, for example, a shape S self-storage pot or a material with a large coefficient of thermal expansion. When the heat is increased by 3, the seventh barb δ will extend by ΔL as shown in Figure 2.7.
In other words, the connector guide 171/Nilight guide 1 and the contact guide 18 are designed to make the VC expansion 5 before turning against the silent whirlpool.

上dαコネクタ16を光源装置13に接続すると、上記
コネクタガイド17の端面は、光源装置13に内蔵され
第1の焦点に光源ランフ″19が配置された隋円四mm
zoの第2の焦点に位置する。し/こがって、光源ラン
f19から出力された照明光は上B己償円凹面鏡2oで
集束されてライトガイド1ノに入射するようになってい
る。
When the upper dα connector 16 is connected to the light source device 13, the end face of the connector guide 17 has a diameter of 4 mm, which is built into the light source device 13 and has a light source lamp “19” located at the first focal point.
Located at the second focus of zo. Therefore, the illumination light output from the light source run f19 is focused by the upper B self-compensating concave mirror 2o and is made to enter the light guide 1no.

このように構成された内視鏡装置によると、光源ランプ
19からの照明光が倫円凹l]l]]腕2゜で集束され
この第2の焦点に位置するライトガイトlノの端面から
入射することにより、このライトガイド11およびライ
トガイド1ノを保持したコネクタガイド17とともに温
度上昇する。そして、このコネクタガイド17がライト
ガイド1ノや伎層削18が熱情するよりも低いH[足温
度以上に加熱されると、第2図にボすようにΔLの長ざ
だけ膨張してコネクタガイドJ7の端面がライトカイト
11と一体に厳も温度の6− 高い倒置凹面鏡20の第2の焦点からすれる。
According to the endoscope device configured in this manner, the illumination light from the light source lamp 19 is focused by the arm 2° and is emitted from the end face of the light guide located at the second focal point. When the light is incident, the temperature increases together with the light guide 11 and the connector guide 17 holding the light guide 1. When this connector guide 17 is heated to a temperature lower than the temperature of the light guide 1 and the layer 18, the connector expands by the length of ΔL as shown in Figure 2. The end face of the guide J7 and the light kite 11 slip away from the second focal point of the inverted concave mirror 20, which is extremely hot.

したがって、コネクタガイド”17、ライトガ1ド1ノ
および做N11118はそれり、上に加熱されることが
ないから、これらの熱情が未然に防止される。−まに1
 コネクタガイド17がH「定温度以上に加熱される葦
では、ライトガ1ド1ノの端面が楕円凹面鏡の第2の焦
点に位1叡しているから、岐祭や撮影に必教な′M:、
笛金伝達することができる。そして、鋭祭や撮影が終了
して光源ランプlθを重訂するか、コネクタ16を光源
長Blsから外すと、コネクタガイド17は冷去IJさ
れてもとの長さに戻り、その端…]が信円凹血@2θの
第2の焦点に位1にするから、その後の1丈用tご踪し
て十分な光量全伝達することができる。
Therefore, the connector guide 17, the light guide 1, and the 11118 are not deflected or heated upwards, so that these passions are prevented.
When the connector guide 17 is heated to a constant temperature or higher, the end face of the light guide 1 is positioned at the second focal point of the elliptical concave mirror, so it is essential for festivals and photography. :,
A flute can be transmitted. Then, when the light source lamp lθ is revised or the connector 16 is removed from the light source length Bls after the sharp shooting or photography is completed, the connector guide 17 is cooled down and returned to its original length, and its end...] Since it is placed at the second focal point of the Shinen concave blood @ 2θ, a sufficient amount of light can be transmitted in the subsequent 1-length period.

なお、土屹−実施例ではコネクタガイド17を熱によっ
て膨張する金4肉で形JJ見したが、」二d己コネクタ
ガイド17は7JI+熱されると長さが短くφ なり、冷ill JれることCCより、もとの長に戻る
上BL−実施汐りとL1逆vC熱変形する形状記憶合金
で形成してもよく、要Vi坊定温反以上に加熱されたと
きにその端面が楕円凹血鯨20の第2の焦点からずれる
ように変形するものであれはよい。
In addition, in the example, the connector guide 17 was made of metal that expands with heat, but when the connector guide 17 is heated, the length becomes shorter and becomes φ, and when it cools, it becomes shorter. CC may be formed of a shape memory alloy that returns to its original length and L1 reverse vC thermally deforms, and its end surface becomes an elliptical concave shape when heated above the constant temperature range. Any shape that deforms so as to deviate from the second focal point of the whale 20 is fine.

以上運べたようにこの発明f4 、光源装置に接続され
るコネクタから突設嘔れ、う」トガイドの後端部全保持
したコネクタガづドを、光源長(j\ 直から発生する照明光の熱で膨張またに縮少する金属で
形成した〃1ら、上記コネクタガイドが所定温度以上に
加熱されたときにその+4:面を照明光の焦点位置から
ずらすことができる。したがって、う1トガ゛イドの後
端暫すが必要以上に加熱されることがないので、このう
1トガイドやライトガイド牙コネクタガイドに1点1定
した按崩゛削などが熱偵するのを未然に防ぐことができ
る。
As mentioned above, this invention f4 has a connector that protrudes from the connector connected to the light source device and holds the entire rear end of the guide. Since the connector guide is made of a metal that expands and contracts when Since the rear end of the guide will not be heated more than necessary, it will be possible to prevent heat damage caused by one-by-one machining of the guide or light guide connector guide. can.

しかも、ライトガイドの端面金子め照明光の焦点からず
らしておく便米のものに比べてこの発明のものはコネク
タガイドが所定温度以上に加熱されたときにたけライト
ガイドの端[fI′]が照りJ光の焦点からずれるので
、観察や撮影に必要な元昂を十′ytVこ伝達すること
ができる。さらに、冷却フィンや送気装置′(il−必
要としないので構成の段組化など?招くこともない。
Furthermore, compared to the conventional type in which the end face of the light guide is shifted from the focus of the illumination light, the end of the light guide [fI'] is Since it is shifted from the focus of the illuminating light, it is possible to transmit the energy necessary for observation and photography by 10'ytV. Furthermore, since cooling fins and air supply devices are not required, there is no need for the structure to be structured in stages.

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの発り」の一実施例を示し、第1図は全体の斜
視N1第2図は要部の献「1川図である。 2・・・伸人都、7・・・照明窓、1)・・・ライトガ
イド、13・・・光源装置、16・・・コネクタ、17
・・・コネクタガイド、19・・・光源ランプ。 出願人代理人  弁理士 鈴 江 武 彦9− 第1図
The drawing shows an example of "This origin", and Figure 1 is the overall perspective view N1. Figure 2 is the main part of the river. 2... Shinjinto, 7... Lighting window , 1)...Light guide, 13...Light source device, 16...Connector, 17
...Connector guide, 19...Light source lamp. Applicant's agent Patent attorney Takehiko Suzue 9- Figure 1

Claims (3)

【特許請求の範囲】[Claims] (1)先端部を内祝説仲人都の照明窓に対同塾せた光学
繊維束からなるライトカイトの後端部全、光源装置に接
わCされるコネクタから突設されたコネクタガイドに保
持するようVCした内視m m tk、 VCおいて、
上記コネクタガイド9を光源装置で発生する照明光の熱
で膨張1ンこは紬小する金種で形成したこと全特徴とす
る内祝鏡装置。
(1) The entire rear end of the light kite, which is made of an optical fiber bundle whose tip is attached to the illumination window of the wedding ceremony matchmaker capital, is held in a connector guide protruding from the connector connected to the light source device. Endoscopic m m tk with VC,
An interior mirror device characterized in that the connector guide 9 is formed of a metal that expands by the heat of the illumination light generated by the light source device.
(2)  コネクタガイドを形成する金PI4は形状d
ピ憶合釜であることを特徴とする時計dtJ求の範囲第
 1 月1i己龜父の 内イ児蛍吃装置。
(2) The gold PI4 forming the connector guide has a shape d
The first month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month of the 1st month, the watch was characterized by being a hot pot.
(3)  コネクタガイド全形成する金部は熱膨張係舷
の大きな材料からなることを特徴とする特許請求の範囲
第1唄61載の内祝鏡装置。
(3) The interior mirror device according to claim 1, wherein the metal part forming the entire connector guide is made of a material with a large thermal expansion range.
JP56168145A 1981-10-21 1981-10-21 Endoscope device Pending JPS5868708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56168145A JPS5868708A (en) 1981-10-21 1981-10-21 Endoscope device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56168145A JPS5868708A (en) 1981-10-21 1981-10-21 Endoscope device

Publications (1)

Publication Number Publication Date
JPS5868708A true JPS5868708A (en) 1983-04-23

Family

ID=15862656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56168145A Pending JPS5868708A (en) 1981-10-21 1981-10-21 Endoscope device

Country Status (1)

Country Link
JP (1) JPS5868708A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584827A1 (en) * 1985-07-09 1987-01-16 Comp Generale Electricite Device for coupling an optical fibre to an optoelectronic component
JPH0621013U (en) * 1986-07-01 1994-03-18 レーザ・メディア・インコーポレーテッド Beam focusing irradiator
JP2007151820A (en) * 2005-12-05 2007-06-21 Pentax Corp Light source device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584827A1 (en) * 1985-07-09 1987-01-16 Comp Generale Electricite Device for coupling an optical fibre to an optoelectronic component
JPH0621013U (en) * 1986-07-01 1994-03-18 レーザ・メディア・インコーポレーテッド Beam focusing irradiator
JP2007151820A (en) * 2005-12-05 2007-06-21 Pentax Corp Light source device

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