JPS5961977A - Laser irradiating device - Google Patents

Laser irradiating device

Info

Publication number
JPS5961977A
JPS5961977A JP57172927A JP17292782A JPS5961977A JP S5961977 A JPS5961977 A JP S5961977A JP 57172927 A JP57172927 A JP 57172927A JP 17292782 A JP17292782 A JP 17292782A JP S5961977 A JPS5961977 A JP S5961977A
Authority
JP
Japan
Prior art keywords
laser beam
laser
light
mirror
reflecting
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
JP57172927A
Other languages
Japanese (ja)
Inventor
Masahiro Toida
昌宏 戸井田
Yasuhiro Suenaga
末永 徳博
Nobunori Suenaga
末永 信紀
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.)
NIPPON SEKIGAISEN KOGYO KK
Original Assignee
NIPPON SEKIGAISEN KOGYO KK
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 NIPPON SEKIGAISEN KOGYO KK filed Critical NIPPON SEKIGAISEN KOGYO KK
Priority to JP57172927A priority Critical patent/JPS5961977A/en
Publication of JPS5961977A publication Critical patent/JPS5961977A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/0604Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B23K26/0613Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams having a common axis

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Surgery Devices (AREA)
  • Laser Beam Processing (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To reduce the number of sheet of reflecting mirrors, and to release reduction of output of a laser irradiating device by a method wherein a second laser beam is added according to reflecting mirrors of two sheets to a first laser beam attained with centering according to a dichroic mirror of one sheet and reflecting mirrors of two sheets or less. CONSTITUTION:The optical path of the first laser beam 3 generated from a laser beam source 1 is bent at right angles by the reflecting mirror 5 and the dichroic mirror 6, and the beam is introduced into the beam guide path 9 of an articulated manipulator, etc. The second laser beam 4 generated from a laser beam source 2 is entered into the dichroic mirro 6 by the reflecting mirror 8 and the reflecting mirror 7. The dichroic mirror 6 is so regulated as to have the transmitting characteristic to the second laser beam 4, the transmitted beam is added to the first laser beam 3, the added beam is introduced to the beam guide path 9, and the beam 10 is irradiated to the desired position. Accordingly, the number of the mirrors reflecting the first laser beam 3 is reduced to two sheets, attenuation of the laser beam 3 is released sharply, and reduction of output is lightened.

Description

【発明の詳細な説明】 本発明はし、  −IJ照射装置に関し、特に、波長の
!I11なる複数のレーザ光を同軸に照射するレーザ照
射装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an IJ irradiation device, in particular a wavelength of ! The present invention relates to a laser irradiation device that irradiates a plurality of laser beams called I11 coaxially.

周知のように、波長の異なる複数のレーザ光を同軸に重
信する技術が種々の産業分野で必要とされている。例え
ば、医用レーザの分野では、C02レーザないしはYA
Gレーザ等の赤外レーザ光にHe−Neレーザ等の可視
レーザ光を重畳し、前記レーザ光のiiJ視化を画るこ
とか行われている。同様に、CO2レーザ光にYAGレ
ーザ光を同軸に重畳し、生体患部に照射することも行わ
れている。
As is well known, technology for coaxially transmitting multiple laser beams having different wavelengths is required in various industrial fields. For example, in the field of medical lasers, C02 laser or YA laser
Visible laser light such as He-Ne laser is superimposed on infrared laser light such as G laser to create iiJ visualization of the laser light. Similarly, YAG laser light is coaxially superimposed on CO2 laser light and irradiated onto the affected part of the living body.

第1図は、従来のレーザ照射装置を示す説明図である。FIG. 1 is an explanatory diagram showing a conventional laser irradiation device.

図示されるように、第2レーザ尤源2より発生される第
2レーザ光4は、反射ミラー5によって光路を直角に折
り曲げられ、ダイクロイックミラー6へ入射する。また
、第2レーザ尤源2より発生される第2レーザ光4は、
ダイクロイックミラー6へ入射され該ミラーを透過する
As shown in the figure, the second laser beam 4 generated by the second laser source 2 has its optical path bent at a right angle by a reflecting mirror 5 and enters a dichroic mirror 6 . Further, the second laser beam 4 generated from the second laser source 2 is
The light enters the dichroic mirror 6 and is transmitted through the mirror.

言うまでもなく、ダイクロインクミラー6Ii第ル− 
り光:3 V(二月してしj、反射性をイ1し、第2レ
ーリ尤4 If(:1.j してに[r秀過1牛を有す
る。」た、8亥ミラー6に反射さ7jる第ル−゛り光3
と、該ミラー64・透I尚する第2レーリ゛光4とが間
中111になるようミラー5.6の位置お」:び角度が
調整されている。
Needless to say, the dichroic ink mirror 6Ii rule
Light: 3 V (February, reflectivity 1, 2nd Ray 4 If (: 1. The 7jth round light reflected by 3
The position and angle of the mirror 5.6 are adjusted so that the second radiation beam 4 passing through the mirror 64 is 111 throughout.

前記両し−リ゛尤3,4を重畳した光束10は、反射ミ
ラー数、8によって直角に2度光路を折り曲げられ、関
節型マニピュレータ等の導光路9へ導入される。ここで
、該ミラー7.8の位16−および角度を調節すること
で、光束10を垂直に立ち上がらせ導光路9の軸芯へ位
置合わぜが行われる。
The light beam 10 obtained by superimposing the two beams 3 and 4 has its optical path bent twice at right angles by the number of reflecting mirrors 8, and is introduced into a light guide path 9 of an articulated manipulator or the like. Here, by adjusting the position 16- and angle of the mirror 7.8, the light beam 10 is raised vertically and aligned with the axis of the light guide path 9.

ところで、反射ミラーによって光が反射される際、ある
いはダイクロイックミラーを光が透過する際、一般に数
饅の減衰が生じることが知られている。前記装置におい
て、第ル−ザ光3は光ミキ/ングの過程でミラー5〜8
によって4回も反射きれており、該レーザ光の減衰は無
視できない程大きくなるものであった。特に、導光路9
に関節型マニピュレータを使用する場合、該マニピュレ
ータには一般に8枚程度の反射ミラーが用いられており
、レーザ光の減衰は伝達1144程で相乗的に大きくな
り不都合なものであった。
By the way, it is known that when light is reflected by a reflecting mirror or when light is transmitted through a dichroic mirror, several degrees of attenuation generally occurs. In the device, the first loser light 3 passes through the mirrors 5 to 8 during the light mixing process.
The laser beam was reflected four times, and the attenuation of the laser beam was so large that it could not be ignored. In particular, the light guide path 9
When an articulated manipulator is used, the manipulator generally uses about eight reflecting mirrors, and the attenuation of the laser beam becomes synergistically large at about 1144 times the transmission, which is inconvenient.

本発明は前記従来装置の欠点に鑑みて成されたもので、
波長の異なる複数のレーザ)′Cを所望の位置へ同軸に
照射するレーザ照射装置において、光ζキ//グの過程
で生ずるレーザ光の減衰を低減するレーザ照射装置の提
供を目的とするものである。
The present invention was made in view of the drawbacks of the conventional device, and
The object of the present invention is to provide a laser irradiation device that reduces the attenuation of laser light that occurs during the optical ζ keying process in a laser irradiation device that coaxially irradiates multiple laser beams with different wavelengths to a desired position. It is.

以下では本発明について、添イXjの図面を参照して詳
細に説明する。
In the following, the present invention will be explained in detail with reference to the accompanying drawings A.Xj.

第2図は、本発明の一実施例を示す説明図である。図示
されるように、第2レーザ光源1より発生される第ル−
ザ光3は、反射ミラー5並びにターイクロイノクミラ−
6によって光路を直角に折り曲げられ、関節型マニピュ
レータ等の導光路9へ導入される。ここで、第2レーザ
光3として、例えばYAGレーザが使用きれる。また、
ダイクロイックミラー6は、第ル−ザ光3を全反射する
FIG. 2 is an explanatory diagram showing one embodiment of the present invention. As shown in the figure, the second laser light source 1 generates a second laser beam.
The light 3 is transmitted to the reflecting mirror 5 and the tertiary mirror 5.
6 bends the optical path at right angles and introduces it into a light guide path 9 of an articulated manipulator or the like. Here, as the second laser beam 3, for example, a YAG laser can be used. Also,
The dichroic mirror 6 totally reflects the first loser light 3.

前記ダイクロイックミラー6に反射された第ル−ザ光3
は、反射ミラT5並びにダイクロイックミラー6の位置
及び角度を調節することにより垂直に立上がらされ、導
光路9のクリ11芯に位置合わせされる。
The first loser light 3 reflected by the dichroic mirror 6
is vertically raised by adjusting the positions and angles of the reflection mirror T5 and the dichroic mirror 6, and is aligned with the center 11 of the light guide path 9.

まだ、第2レーザ光源2より発生される第2レーザ光4
け、反射ミラー8並びに反射ミラー7によって光路を直
角に2度折り曲げられ、前記ダイクロイックミラー6へ
入射される。該第2レーザ光源4には、例えばCO2レ
ーザが使用される。
The second laser light 4 generated from the second laser light source 2 is still
Then, the optical path is bent twice at right angles by the reflecting mirror 8 and the reflecting mirror 7, and is incident on the dichroic mirror 6. For example, a CO2 laser is used as the second laser light source 4.

ここで、ダイクロイックミラー6は第2レーザ光4に対
して透過特性を有するよう調整されており、透過光は反
射ミラー7.8の位置並びに角度を調整することにより
垂直に立上がらされ、第ル−ザ光3に重畳される。従っ
て、前記導光路9には第1並びに第2レーザ光3,4を
重畳した光束10が導入され、該光束を所望の位置へ照
射する。
Here, the dichroic mirror 6 is adjusted to have a transmission characteristic for the second laser beam 4, and the transmitted light is caused to rise vertically by adjusting the position and angle of the reflection mirror 7.8. - Superimposed on the light 3. Therefore, a light beam 10 in which the first and second laser beams 3 and 4 are superimposed is introduced into the light guide path 9, and the light beam is irradiated to a desired position.

以十の構成において、使用ミラー数並びに第2レーザ光
4が通過するミラー数は従来装置と同じであるが、■ル
−ザ光3が通過するミラー数は2枚に減少している。従
って、゛・第2レーザ光3の減衰d太りいに緩和きれ、
出力の低下が軽減される。
In the above ten configurations, the number of mirrors used and the number of mirrors through which the second laser beam 4 passes are the same as in the conventional device, but (1) the number of mirrors through which the loser beam 3 passes is reduced to two. Therefore, ゛・Attenuation d of the second laser beam 3 can be greatly relaxed,
Decrease in output is reduced.

特に、導光路に関節型マニピュレータを使用する場合、
この差は顕著なものとなって現われる。
Especially when using an articulated manipulator in the light guide,
This difference appears to be significant.

尚、図示はしてないが、第ル−ザ光3をダイクロイック
ミラー6に入射きせる際、2枚の反射ミラーによって反
射された光束を入射させるよう構成することも可能でち
る。この場合は、ダイクロイックミラー6を固定し、2
枚の反射ミラーの位置及び角度を調整することで導光路
9への軸合わせが達成きれる。
Although not shown, when the first loser light 3 is made to enter the dichroic mirror 6, it is also possible to make the light beam reflected by two reflecting mirrors enter the dichroic mirror 6. In this case, fix the dichroic mirror 6 and
By adjusting the position and angle of the reflective mirrors, alignment to the light guide path 9 can be achieved.

このように構成すると、第ル−ザ光3が通過する反射ミ
ラー数は3枚となるが、従来装置に比較するとレーザ光
の減衰は緩和されている。言うまでもなく、前記従来装
置において、2光束の重畳に1枚のダイクロイックミラ
ーと2枚の反射ミラーを用いたものと比較すれば、その
差は歴然と現われる。
With this configuration, the number of reflecting mirrors through which the first loser light 3 passes is three, but the attenuation of the laser light is moderated compared to the conventional device. Needless to say, when compared with the conventional device using one dichroic mirror and two reflecting mirrors for superimposing two beams, the difference becomes obvious.

前記したように、使用ミラー数が少いほどレーザ光の減
衰を小さく抑えることができる。従って、第2図に示し
た方式が望ましいことは言うまでもない。
As described above, the smaller the number of mirrors used, the smaller the attenuation of the laser beam can be suppressed. Therefore, it goes without saying that the method shown in FIG. 2 is desirable.

4だ、波長の異なる3本以上のレーザ光を同軸に重・1
″イする際d1、これらレーザ光を予じめ2本の光束に
一、I′I、it、+、 しておき、本発明を適応すれ
ばよい。
4. Three or more laser beams with different wavelengths are coaxially overlapped.
The present invention can be applied by dividing these laser beams into two beams in advance as follows.

以十詳述L7だように、本発明にL波長の異なる複数の
光束を同軸に重畳し所望のイ装置へ1!6射するレーザ
11「′X躬装置において、1枚のダイクロイックミラ
ーと多くとも2枚の反射ミラーによって第ル−ザ光と導
光路との軸合わせを行い、2枚の反射ミラーによって第
2レーザ光を前記の軸合ぜした第ル−リ′光に重畳する
ことを特徴とするものである。従って、レーザ光が通過
する反射ミラーの枚数が低減さJl、出力の減少を大き
く緩和できるものである。
As described in detail in L7 below, the present invention uses a single dichroic mirror and a laser beam device that coaxially superimposes a plurality of light beams with different L wavelengths and irradiates them to a desired device. In both cases, the axes of the first laser beam and the light guiding path are aligned using two reflecting mirrors, and the second laser beam is superimposed on the aligned first Lurie' beam using the two reflecting mirrors. Therefore, the number of reflecting mirrors through which the laser beam passes is reduced, and the decrease in output can be greatly alleviated.

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

第1図は従来のレーザ照射装置の説明図、第2図は本発
明の一実施例の説明図である。 図中にイτ1しだ記号は、 1・・第2レーザ光源、2・1〜第2レーザ尤源、3 
第ル−ザ光、4・第2レーザ光、 5.7.8・・反射ミラー、6 ・ダイクロイックミラ
ー、9・・導光路、 を示す。 特許出願人 11本赤外線工業株式会社 代表者 末 永 徳 博 第1回 箪2目
FIG. 1 is an explanatory diagram of a conventional laser irradiation device, and FIG. 2 is an explanatory diagram of an embodiment of the present invention. The symbols τ1 in the diagram are: 1. Second laser light source, 2. 1 to second laser source, 3
4. Second laser beam; 5.7.8. Reflection mirror; 6. Dichroic mirror; 9. Light guide path. Patent applicant: 11 Infrared Industry Co., Ltd. Representative: Norihiro Suenaga 1st Koto 2nd round

Claims (1)

【特許請求の範囲】[Claims] (1) ’r−いに波長の異なる第1並びに第2光東を
同軸に市4′1シ導アr、路より所望の部位へ照射する
レーザ照射装置において、第1光束に対しては反射性を
イ〕し7第2光束に対しては透過性を有するダイクロイ
ックミラーと、第1光束を反射し光路を折り曲げ該光束
を前記ダイクロイックミラー如指向する多くとも2枚の
反射ミラーと、第2光束を反射し光路を折り曲げ該光束
を前記ダイクロイックミラーに指向する2枚の反射ミラ
ーとを具備し、前記ダイクロイックミラーによ!lJ 
nil記両九束が同軸に重畳され、かつ前記の同軸に重
畳された光束が前記導光路にi11+合わせされている
ことを特徴とする°レーザ照射装置。
(1) In a laser irradiation device that irradiates first and second beams with different wavelengths coaxially to a desired area from a direction, the first beam is a dichroic mirror that has reflective properties and is transparent to the second light beam; at most two reflective mirrors that reflect the first light beam, bend the optical path, and direct the light beam like the dichroic mirror; and two reflective mirrors that reflect two light beams, bend the optical path, and direct the light beams toward the dichroic mirror. lJ
A laser irradiation device characterized in that both nine beams of nil are coaxially superimposed, and the coaxially superimposed beams are aligned with the light guide path.
JP57172927A 1982-10-01 1982-10-01 Laser irradiating device Pending JPS5961977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57172927A JPS5961977A (en) 1982-10-01 1982-10-01 Laser irradiating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57172927A JPS5961977A (en) 1982-10-01 1982-10-01 Laser irradiating device

Publications (1)

Publication Number Publication Date
JPS5961977A true JPS5961977A (en) 1984-04-09

Family

ID=15950927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57172927A Pending JPS5961977A (en) 1982-10-01 1982-10-01 Laser irradiating device

Country Status (1)

Country Link
JP (1) JPS5961977A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016503348A (en) * 2012-11-30 2016-02-04 ディレクトフォトニクス インダストリーズ ゲーエムベーハーDirectphotonics Industries Gmbh Laser processing apparatus and laser processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016503348A (en) * 2012-11-30 2016-02-04 ディレクトフォトニクス インダストリーズ ゲーエムベーハーDirectphotonics Industries Gmbh Laser processing apparatus and laser processing method

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