JPS63286803A - Optical fiber cable - Google Patents
Optical fiber cableInfo
- Publication number
- JPS63286803A JPS63286803A JP62121950A JP12195087A JPS63286803A JP S63286803 A JPS63286803 A JP S63286803A JP 62121950 A JP62121950 A JP 62121950A JP 12195087 A JP12195087 A JP 12195087A JP S63286803 A JPS63286803 A JP S63286803A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- scattered light
- stainless steel
- steel tube
- tube
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 12
- 239000010935 stainless steel Substances 0.000 abstract description 12
- 230000020169 heat generation Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005498 polishing Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 108091006629 SLC13A2 Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Laser Surgery Devices (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、レーザ加工機やレーザメスの導光路に用いら
れる光ファイバを収納した光フアイバケーブルに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an optical fiber cable housing an optical fiber used in a light guide path of a laser processing machine or a laser scalpel.
従来の技術
近年、レーザ加工機やレーザメスにおいて炭酸ガスレー
ザやＹＡＧレーザ等のエネルギ光線を光フアイバケーブ
ルで目的部位まで導き、加工や手術が行われている。2. Description of the Related Art In recent years, laser processing machines and laser scalpels have been used to conduct processing and surgery by guiding energy beams from carbon dioxide lasers, YAG lasers, etc. to target areas using optical fiber cables.
大パワーのエネルギ光を光ファイバで導波する場合、光
ファイバのエネルギ伝送能力を制限する要因として材料
固有の不純物、格子欠陥による内部吸収と、光ファイバ
の内部散乱光や表面散乱光による収納部材への発熱が考
えられる。特に、炭酸ガスレーザ光を数百ワット伝送す
る事が可能と考えられるＫＲ１３−ｔｓ多結晶光ファイ
バは、光ファイバの内部発熱による伸び測定と、透過率
の測定により、散乱光量は、内部発熱量に比べて１．７
倍と大きい事がわかっている。その為に、内部発熱を効
果的に冷却する事も重要であるが、１．７倍と大きい散
乱光による収納部材の発熱を防止する事が、光フアイバ
ケーブルの伝送能力を高める上で、より重要と考えられ
る。When guiding high-power energy light through an optical fiber, the factors that limit the energy transmission ability of the optical fiber are internal absorption due to material-specific impurities and lattice defects, and internal scattering of the optical fiber and surface scattering of the storage material. This may be due to fever. In particular, for the KR13-ts polycrystalline optical fiber, which is thought to be capable of transmitting several hundred watts of carbon dioxide laser light, the amount of scattered light can be determined by measuring the elongation due to the internal heat generation of the optical fiber and measuring the transmittance. Compared to 1.7
I know it's twice as big. For this reason, it is important to effectively cool down internal heat generation, but preventing heat generation in the storage member due to scattered light, which is 1.7 times larger, is more effective in increasing the transmission capacity of optical fiber cables. considered important.
従来の散乱光による収納部材の発熱防止として、収納部
材の内面に発熱が生じない様に、内面を鏡面に仕上げる
方法や、熱伝導率の高い金や銅の金属チューブを収納部
材として使用する方法があった。Conventional methods to prevent heat generation in the storage member due to scattered light include methods of finishing the inner surface of the storage member with a mirror finish, and methods of using metal tubes made of gold or copper with high thermal conductivity as the storage member so that heat does not occur on the inner surface of the storage member. was there.
発明が解決しようとする問題点
収納部材の内面を鏡面に仕上げる方法は、光ファイバか
ら生じる散乱光の一回当たりの反射による発熱は減少す
る事は可能であるが、レーザ加工機やレーザメスに用い
られる光フアイバケーブルは、少くとも１ｍ以上の長さ
が必要である為、散乱光は収納部材内面で多数回反射を
繰り返し、結局は吸収されてしまい、効果が少ない。更
に悪い事に反射して行く散乱光が、光ファイバ知発熱を
生じる事もありうる。Problems to be Solved by the Invention Although the method of finishing the inner surface of the storage member with a mirror surface can reduce the heat generated by each reflection of scattered light generated from the optical fiber, it is not suitable for use in laser processing machines or laser scalpels. Since the length of the optical fiber cable used is required to be at least 1 m or more, the scattered light is reflected many times on the inner surface of the storage member and is eventually absorbed, resulting in little effect. Even worse, the reflected scattered light may cause heat generation in the optical fiber.
熱伝導率の高い金や銅の金属チューブを使用する方法は
、光フアイバケーブルの可とり性をもたせる為に薄肉の
金属チェーブを使う必要があり、熱伝導による冷却効果
は少ない。また、金や銅等の熱伝導率の高い金属は、弾
性に貧しく、光フアイバケーブルの曲げにより変形する
事があり使いにくい。Methods using metal tubes made of gold or copper, which have high thermal conductivity, require the use of thin-walled metal tubes in order to provide flexibility to the optical fiber cable, and the cooling effect due to heat conduction is small. Furthermore, metals with high thermal conductivity such as gold and copper have poor elasticity and are difficult to use because they can be deformed by bending the optical fiber cable.
問題点を解決する為の手段
本発明は、上記従来の問題点を解決するものでレーザ光
を導光する光ファイバと、この光ファイバを収納保護し
、鏡面な内面を有する熱伝導性の金属チューア゛と、こ
の金属チューブに設けられた多数個の光通孔とからなる
光フアイバケーブルである。Means for Solving the Problems The present invention solves the above-mentioned conventional problems by providing an optical fiber for guiding laser light, a thermally conductive metal that houses and protects the optical fiber and has a mirror-like inner surface. It is an optical fiber cable consisting of a tube and a number of optical holes provided in the metal tube.
作 用
本発明の光フアイバケーブルの作用は、光ファイバから
生じた散乱光を、鏡面を有する金属チューブの内面で反
射させ、大部分の散乱光を、金属チューブに設けた光通
孔によシ、外部に放出させ、金属チューブに発熱を生じ
させない事にある。Function The optical fiber cable of the present invention reflects scattered light generated from an optical fiber on the inner surface of a metal tube having a mirror surface, and transmits most of the scattered light through a light passage provided in the metal tube. The purpose is to release the heat to the outside and not generate heat in the metal tube.
実施例 以下本発明の実施例を図面を参照して説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例における光フアイバケーブル
の構成図である。赤外光ファイバ１は、熱間押出したＫ
ＲＳ−ｓ赤外透過材料からなり、光フアイバケーブル２
に収納されている。炭酸ガスレーザ光線３は、赤外透過
材料Ｚｎ５ｅからなるウィンドウ４を通して赤外光ファ
イバに入射され導波したレーザ光線３は、出射レンズ６
によシ加工部６に集光され、切断、溶接、熱処理が行な
われる。FIG. 1 is a configuration diagram of an optical fiber cable in one embodiment of the present invention. The infrared optical fiber 1 is made of hot extruded K
Optical fiber cable 2 made of RS-s infrared transparent material
It is stored in. The carbon dioxide laser beam 3 enters an infrared optical fiber through a window 4 made of an infrared transmitting material Zn5e, and the guided laser beam 3 passes through an output lens 6.
The light is focused on the cutting section 6, where cutting, welding, and heat treatment are performed.
赤外光ファイバ１の入射側は光透過材料のＮａＣ１から
なるチャック７によシ弾性的に保持される◎また中間部
は、ステンレスチューブ８により、収納され、機械的な
保護、放熱面積の増加による光ファイバの冷却が行われ
る。The input side of the infrared optical fiber 1 is elastically held by a chuck 7 made of NaC1, a light-transmitting material.The intermediate portion is housed in a stainless steel tube 8, providing mechanical protection and increasing the heat dissipation area. The optical fiber is cooled by
ステンレスチューブ８は内面を砥粒研摩により焼面処理
され、光ファイバからの散乱光の反射による発熱を少な
く押える事が出来る。The inner surface of the stainless steel tube 8 is burnt by abrasive polishing, so that heat generation due to reflection of scattered light from the optical fiber can be suppressed to a minimum.
まだ、ステンレスチューブ８の全良知わたって、φ０．
２■程度の多数個の光通孔９が穿けられており、光ファ
イバから生じた散乱光１０％または、ステンレスチュー
ブ８の内面で鏡面反射する散乱光をこの光通孔９を通じ
て外部に放出される。すなわち、光ファイバから生じた
散乱光の大部分は、収納部材であるステンレスチューブ
８または、光ファイバ１を発熱する事がなく、外部に放
出する事によって光フアイバ１部分の温度上昇を押える
事ができ高パワーのレーザ光線の伝送が可能となる。Still, the entire length of the stainless steel tube 8 is φ0.
A large number of light holes 9 of approximately 2 mm in size are bored, and 10% of the scattered light generated from the optical fiber or the scattered light specularly reflected on the inner surface of the stainless steel tube 8 is emitted to the outside through the light holes 9. Ru. In other words, most of the scattered light generated from the optical fiber does not generate heat in the stainless steel tube 8 or the optical fiber 1, which is the storage member, and is emitted to the outside, thereby suppressing the temperature rise in the optical fiber 1 portion. This makes it possible to transmit high-power laser beams.
尚、本実施例では、チャックと、ステンレスチューブに
は、強制的な冷却を行なわずに説明したが、本発明の第
２の実施例である第２図に示す様に、冷却媒体１１をチ
ャック７と、ステンレスチューブ８に巻き付けた冷却用
パイプ１２に強制循環させ、光フアイバケーブルを冷却
する事によって、より高パワーのレーザ光線を伝送する
事も可能である。In this embodiment, the chuck and the stainless steel tube were described without being forcedly cooled. However, as shown in FIG. 2, which is a second embodiment of the present invention, the cooling medium 11 is 7 and a cooling pipe 12 wrapped around a stainless steel tube 8 to cool the optical fiber cable, it is also possible to transmit a higher power laser beam.
発明の詳細
な説明した様に、本発明は、光ファイバから生じる散乱
光の大部分は、収納部材であるステンレスチューブを発
熱させる事なしに、多数に穿いた光通孔を通じて外部に
放出する事によって、光ファイバの発熱を押える事が出
来、高パワーのレーザ光の伝送が可能となる。As described in detail, the present invention is capable of emitting most of the scattered light generated from the optical fiber to the outside through a large number of light holes without generating heat in the stainless steel tube that is the housing member. This makes it possible to suppress heat generation in the optical fiber, making it possible to transmit high-power laser light.
第１図は本発明の一実施例における光フアイバケーブル
の断側面図、第２図は第二の実施例における光フアイバ
ーケーブルの断側面図である。
１・・・・・・光ファイバ、２・・・・・・光フアイバ
ケーブル、３・・・・・・レーザ光線、８・・−゛・・
・ステンレスチューブ、９・・・・・・光通孔。FIG. 1 is a sectional side view of an optical fiber cable in one embodiment of the present invention, and FIG. 2 is a sectional side view of an optical fiber cable in a second embodiment. 1...Optical fiber, 2...Optical fiber cable, 3...Laser beam, 8...-゛...
・Stainless steel tube, 9...Light hole.
Claims (1)
納保護し、鏡面な内面を有する熱伝導性の金属チューブ
と、この金属チューブに設けられた多数個の光通孔とか
らなる光ファイバケーブル。An optical fiber cable that consists of an optical fiber that guides laser light, a thermally conductive metal tube that houses and protects this optical fiber and has a mirrored inner surface, and a large number of optical holes provided in this metal tube. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62121950A JPS63286803A (en) | 1987-05-19 | 1987-05-19 | Optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62121950A JPS63286803A (en) | 1987-05-19 | 1987-05-19 | Optical fiber cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63286803A true JPS63286803A (en) | 1988-11-24 |
Family
ID=14823930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62121950A Pending JPS63286803A (en) | 1987-05-19 | 1987-05-19 | Optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63286803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016017325A1 (en) * | 2014-07-31 | 2016-02-04 | 株式会社カネカ | Endoscope and linear heat sink |
-
1987
- 1987-05-19 JP JP62121950A patent/JPS63286803A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016017325A1 (en) * | 2014-07-31 | 2016-02-04 | 株式会社カネカ | Endoscope and linear heat sink |
| JPWO2016017325A1 (en) * | 2014-07-31 | 2017-04-27 | 株式会社カネカ | Endoscope, heat dissipation wire |
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