JPH0522881B2 - - Google Patents
Info
- Publication number
- JPH0522881B2 JPH0522881B2 JP58179586A JP17958683A JPH0522881B2 JP H0522881 B2 JPH0522881 B2 JP H0522881B2 JP 58179586 A JP58179586 A JP 58179586A JP 17958683 A JP17958683 A JP 17958683A JP H0522881 B2 JPH0522881 B2 JP H0522881B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- visible light
- tube
- infrared fiber
- guide path
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 7
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002430 laser surgery Methods 0.000 description 1
Classifications
-
- 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
- G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/40—Optical focusing aids
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/102—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type for infrared and ultraviolet radiation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Astronomy & Astrophysics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Description
【発明の詳細な説明】
（技術分野）
本発明は、赤外線用フアイバに、CO2レーザ光
を通し、対象物に照射するような場合（例えばレ
ーザ手術）、目に見えないCO2レーザ光に、可視
光を重さね合わせて、照射される位置の指示に用
いるガイド方式の指示光付赤外フアイバに関する
ものである。[Detailed Description of the Invention] (Technical Field) The present invention provides a method for transmitting CO 2 laser light to an invisible CO 2 laser beam when passing it through an infrared fiber and irradiating a target object (for example, in laser surgery). This invention relates to a guide-type infrared fiber with an indicator light that superimposes visible light and uses it to indicate the position to be irradiated.
（従来技術とその問題点）
CO2レーザ光を透過する物質で作られた赤外フ
アイバを用い対象物にレーザ光を照射するような
場合、CO2レーザ光１は波長10.6μｍであり、そ
れを透過する物質は、可視光を透過しないため
に、図１の如く、別に例えばHe−Neレーザ光１
のような可視光を通すフアイバ４を赤外フアイバ
３の周囲に数本沿わせてそのフアイバに可視光を
通しレンズ５によつて集光する方法がとられてい
る。図２，ａとｂは、それぞれ図１のＡ−Ａ，Ｂ
−Ｂの断面図である。この場合、数本の光線４が
用いられるため、図３，ａ及びｂに示すようにレ
ンズの焦点では１点になるが、焦点以外では数点
の光点となる欠点がある。又、数本のフアイバの
端面をうまく合わせないと焦点においても一点に
合わない可能性もある。(Prior art and its problems) When irradiating a target with laser light using an infrared fiber made of a material that transmits CO 2 laser light, the CO 2 laser light 1 has a wavelength of 10.6 μm; Since materials that transmit visible light do not transmit visible light, as shown in Figure 1, for example, He-Ne laser light 1
A method is used in which several fibers 4 that transmit visible light are placed along the periphery of the infrared fiber 3, and the visible light is passed through the fibers and condensed by a lens 5. Figures 2, a and b are AA and B in Figure 1, respectively.
-B is a sectional view. In this case, since several light rays 4 are used, there is a drawback that, as shown in FIGS. 3A and 3B, there is one point at the focal point of the lens, but there are several light points outside the focal point. Furthermore, if the end faces of several fibers are not aligned well, there is a possibility that the focus will not be focused on a single point.
（発明の構成）
本発明はこのような欠点を改良するため、可視
光の導光路を管にして、内部に赤外フアイバを通
すことを特徴とする。図４に示す如く、可視光を
透過する物質、例えばPMMA（ポリメチルメタア
クリレート）等のチユーブの中に赤外フアイバ４
を通し、PMMAチユーブは途中まで切り込みを
入れて、赤外フアイバをとり出し、CO2レーザ光
の入射端とする。このとき図４のＣ−Ｃの断面は
図５，ｂのようになる。可視光の入射のために
は、切り込んだ側の端部を熱加工し、断面が管で
はなく、図４のＤ−Ｄに対応する図５，ｂのよう
に円柱状にし、有効に入射される構造とする。こ
の場合、図６，ａ及び図６，ｂに示す如く可視光
は焦点面では必らず一点になり、焦点面以外では
輪状となり、その輪の中に赤外光が存在すること
を明確に示すことが出来る。これに使用する
PMMAチユーブの構造は図７に示すように、チ
ユーブの部分７０はその内側７１及び外側７２よ
りも高い屈折率分布をしており光を逃がさずに伝
えることが出来る。(Structure of the Invention) In order to improve such drawbacks, the present invention is characterized in that the light guide path for visible light is made into a tube, and an infrared fiber is passed through the inside. As shown in Figure 4, an infrared fiber 4 is inserted into a tube made of a material that transmits visible light, such as PMMA (polymethyl methacrylate).
The PMMA tube is cut halfway through, and the infrared fiber is taken out and used as the input end for the CO 2 laser beam. At this time, the cross section taken along line CC in FIG. 4 becomes as shown in FIG. 5, b. In order to allow visible light to enter, the cut end is thermally processed so that the cross section is not a tube but a cylinder as shown in Figure 5, b corresponding to D-D in Figure 4, so that visible light can be effectively input. The structure is as follows. In this case, as shown in Figures 6, a and 6, b, visible light always forms a single point at the focal plane, and forms a ring outside the focal plane, clearly indicating that infrared light exists within the ring. can be shown. use for this
As shown in FIG. 7, the structure of the PMMA tube is such that a portion 70 of the tube has a higher refractive index distribution than its inner side 71 and outer side 72, allowing light to be transmitted without escaping.
（発明の効果）
本発明によれば、輪状の指示光を得ることが出
来、また指示光付赤外フアイバを作る場合も単に
挿入するのみであるので簡単に組立てることが出
来る。(Effects of the Invention) According to the present invention, it is possible to obtain a ring-shaped indicator light, and when making an infrared fiber with an indicator light, it can be easily assembled because it is simply inserted.
図１は従来の構造の指示光付赤外フアイバの構
造を示す図、図２，ａ，ｂはそれぞれ図１のＡ−
Ａ，Ｂ−Ｂの断面構造を示す図、図３，ａは焦点
面での集光状態を、図３，ｂは焦点面以外での集
光状態を示す図である。図４は本発明の指示光付
赤外フアイバの構造を示す図、図５，ａ，ｂはそ
れぞれ図１のＣ−Ｃ，Ｄ−Ｄの断面構造を示す
図、図６，ａ，ｂはそれぞれ焦点面での集光状態
を示す図、焦点面以外での集光状態を示す図であ
る。図７は可視光導光路の構造を示す図である。
１……CO2レーザ光、２……He−Neレーザ
光、３……赤外フアイバ、４……可視光フアイ
バ、５……レンズ、６……可視光チユーブ、７０
……チユーブ、７１……チユーブの内側部分、７
２……チユーブの外側部分。
FIG. 1 is a diagram showing the structure of a conventional infrared fiber with an indicator light, and FIGS.
A and BB are diagrams showing the cross-sectional structure, and FIG. 3, a shows a light condensing state on the focal plane, and FIG. 3, b shows a light condensing state at a place other than the focal plane. FIG. 4 is a diagram showing the structure of an infrared fiber with an indicator light of the present invention, FIGS. 5, a, and b are diagrams showing the cross-sectional structure of FIG. They are a diagram showing a light condensing state at a focal plane and a diagram showing a light condensing state at a place other than the focal plane, respectively. FIG. 7 is a diagram showing the structure of the visible light guide path. 1... CO 2 laser beam, 2... He-Ne laser beam, 3... Infrared fiber, 4... Visible light fiber, 5... Lens, 6... Visible light tube, 70
...Tube, 71...Inner part of tube, 7
2...The outside part of the tube.
Claims (1)
する物質で作つた管に挿入してなり、かつ、前記
可視光の導光路と前記非可視光の導光路とが分離
された可視光の導光路の切り込んだ側の入射端部
が加熱加工による円筒状をなしていることを特徴
とするガイド光方式。1 Visible light in which a light guide path that transmits invisible light is inserted into a tube made of a material that transmits visible light, and the light guide path for visible light and the light guide path for invisible light are separated. A guide light method characterized in that the entrance end on the cut side of the light guide path is heated to form a cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58179586A JPS6070413A (en) | 1983-09-27 | 1983-09-27 | Guide light method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58179586A JPS6070413A (en) | 1983-09-27 | 1983-09-27 | Guide light method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6070413A JPS6070413A (en) | 1985-04-22 |
| JPH0522881B2 true JPH0522881B2 (en) | 1993-03-31 |
Family
ID=16068313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58179586A Granted JPS6070413A (en) | 1983-09-27 | 1983-09-27 | Guide light method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6070413A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63287804A (en) * | 1987-05-20 | 1988-11-24 | Matsushita Electric Ind Co Ltd | Optical fiber cable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5578951A (en) * | 1978-12-11 | 1980-06-14 | Sumitomo Electric Industries | Laser knife device with beam guide |
| JPS5880612A (en) * | 1981-11-09 | 1983-05-14 | Toyo Tanshi Kk | Optical branching device |
-
1983
- 1983-09-27 JP JP58179586A patent/JPS6070413A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5578951A (en) * | 1978-12-11 | 1980-06-14 | Sumitomo Electric Industries | Laser knife device with beam guide |
| JPS5880612A (en) * | 1981-11-09 | 1983-05-14 | Toyo Tanshi Kk | Optical branching device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6070413A (en) | 1985-04-22 |
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