JPS63301580A - Laser oscillator - Google Patents

Laser oscillator

Info

Publication number
JPS63301580A
JPS63301580A JP62136830A JP13683087A JPS63301580A JP S63301580 A JPS63301580 A JP S63301580A JP 62136830 A JP62136830 A JP 62136830A JP 13683087 A JP13683087 A JP 13683087A JP S63301580 A JPS63301580 A JP S63301580A
Authority
JP
Japan
Prior art keywords
laser beam
invisible
emitter
visible
laser
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
JP62136830A
Other languages
Japanese (ja)
Inventor
Akira Shikayama
鹿山　公
Kiyoshi Tada
潔 多田
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.)
Aioi Systems Co Ltd
Hazama Ando Corp
Original Assignee
Hazama Gumi Ltd
Aioi Systems 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 Hazama Gumi Ltd, Aioi Systems Co Ltd filed Critical Hazama Gumi Ltd
Priority to JP62136830A priority Critical patent/JPS63301580A/en
Publication of JPS63301580A publication Critical patent/JPS63301580A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To improve the safety of a laser oscillator by a method wherein a light emitter emitting an invisible laser beam, a light emitter emitting a visible laser beam and a mirror are provided inside a cylinder for measurement. CONSTITUTION:In a laser oscillator 6 equipped with an invisible laser beam emitter 1 as a main component, a visible laser beam emitter 2 independent from the invisible laser beam oscillator 1 and a mirror 3 which projects the visible laser beam toward the direction approximately parallel to the direction of the invisible laser beam are provided. When measurement is carried out, the visible laser beam emitter 2 is operated first to emit the visible laser beam to apply the visible laser beam to a measured surface 4. Then, after the sight is adjusted to the measured position 5 of the measured surface 4, the switch of the invisible laser beam emitter 1 is turned on to project the invisible laser beam and the surface 4 is measured. With this constitution, the safety and operatability when a laser oscillator 6 employing the invisible laser beam emitter 1 is utilized for measurement or the like can be improved.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明はレーザ発振器、特に人体への悪影響を回避し得
るようにしたレーザ発振器に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a laser oscillator, and particularly to a laser oscillator that can avoid adverse effects on the human body.

〈従来の技術〉 従来レーザ発振器はトンネルの断面測定器などに用いら
れるものがある。このトンネルの断面測定器に用いられ
るレーザ発振器は、例えば可視レーザ光線である赤色レ
ーザ光線を発するアルゴン・ガスレーザ発光器のような
可視レーザ発光器を備えていたり、或いは不可視レーザ
光線である）１を発する半導体レーザ発光器を備えるも
のがある。<Prior Art> Some conventional laser oscillators are used in tunnel cross-section measuring instruments. The laser oscillator used in this tunnel cross-section measuring device is equipped with a visible laser emitter, such as an argon gas laser emitter that emits a visible red laser beam, or an invisible laser beam (1). Some devices include a semiconductor laser emitter that emits light.

そして、前記可視レーザ発光器はスイッチをオンしてか
ら実際に可視レーザ光線が投射されるまでのいわゆる立
上り時間が長くかかり作業性が悪いなどの理由で、最近
では前記半導体レーザ発光器のような不可視レーザ発光
器が多く用いられる。The visible laser emitter requires a long rise time from when the switch is turned on until the visible laser beam is actually emitted, resulting in poor workability. Invisible laser emitters are often used.

〈発明が解決しようとする問題点〉 しかしながら、このうよな従来の不可視レーザ発光器を
使った測定器にあっては、レーザ発光器から投射される
レーザ光がＸ線などであり目に見えないため、人体に当
ると危険であることを考慮してレーザ発振器を使用する
場所付近に立入禁止区域を設けて使用しなければならな
い。このため不可視レーザ発光器を用いたレーザ発振器
を測定等に使う場合安全性、操作性が悪くなるという不
具合があった。<Problems to be solved by the invention> However, in such conventional measuring instruments that use invisible laser emitters, the laser light emitted from the laser emitter is X-rays, etc., and cannot be seen with the naked eye. Therefore, it is necessary to set up a restricted area near the place where the laser oscillator is used, considering that it is dangerous if it hits the human body. For this reason, when a laser oscillator using an invisible laser emitter is used for measurements, etc., there is a problem that safety and operability deteriorate.

本発明は、このような従来の問題点に着目してなされた
もので、その目的は、不可視レーザ光線を使って測定等
を為し得ると共に安全性を高め、且つ操作性を向上させ
たレーザ発振器を提供することである。The present invention has been made in view of these conventional problems, and its purpose is to provide a laser that can perform measurements using invisible laser beams, has increased safety, and has improved operability. The purpose is to provide an oscillator.

〈問題点を解決するための手段〉 本発明は前記目的を達成するため、第１図に原理図とし
て示すように不可視レーザ発光器１を主要機器として有
するレーザ発振器に、前記不可視レーザ発光器とは別個
に可視レーザ光線を発生させる可視レーザ発光器２と、
この可視レーザ発光器からの可視レーザ光線を、不可視
レーザ光線とほぼ平行な方向へ投射するミラー３とを設
けたことを要旨とするものである。<Means for Solving the Problems> In order to achieve the above object, the present invention includes a laser oscillator having an invisible laser emitter 1 as a main equipment, as shown in the principle diagram in FIG. a visible laser emitter 2 that separately generates a visible laser beam;
The gist is that a mirror 3 is provided which projects the visible laser beam from the visible laser beam in a direction substantially parallel to the invisible laser beam.

〈作用〉 前記レーザ発振器を測定に用いる場合、可視レーザ発光
器２を作動させることにより可視レーザ光線が投射され
る。この可視レーザ光線は不可視レーザ光線の投射経路
近くを、当該不可視レーザ光線とほぼ平行になる様設定
されているから、レーザ発振器を方向転換するに際して
照準の役割を果たす。したがって、測定を行うに当って
、先ず可視レーザ発光器２を作動させて可視レーザ光線
を投射させ、被測定面４に当てる。そして、この被測定
面４の測定部位５に照準を合わせた後不可視レーザ発光
器１のスイッチを入れると、不可視レーザ光線が投射さ
れ、被測定面４の測定が行われる。<Operation> When the laser oscillator is used for measurement, a visible laser beam is projected by operating the visible laser emitter 2. Since this visible laser beam is set near the projection path of the invisible laser beam so as to be almost parallel to the invisible laser beam, it serves as a sight when changing the direction of the laser oscillator. Therefore, when performing a measurement, first the visible laser emitter 2 is activated to project a visible laser beam onto the surface 4 to be measured. Then, when the invisible laser emitter 1 is turned on after aiming at the measurement site 5 of the surface 4 to be measured, an invisible laser beam is projected and the surface 4 to be measured is measured.

〈実施例〉 第２図は本発明によるレーザ発振器の一実施例を示す断
面図である。この実施例に係るレーザ発振器６は、測定
用筒体７と、コントローラ８とを備え、筒体７は軸受９
ａ、９ｂにて架台フレーム１ｏに水平に支承され、パル
スモータ１２によりベルト１３を介して所定角度に旋回
制御される。<Embodiment> FIG. 2 is a sectional view showing an embodiment of a laser oscillator according to the present invention. The laser oscillator 6 according to this embodiment includes a measurement cylinder 7 and a controller 8, and the cylinder 7 has a bearing 9.
It is horizontally supported by a gantry frame 1o at points a and 9b, and is controlled to rotate at a predetermined angle by a pulse motor 12 via a belt 13.

パルスモータ１２は、パルスドライバ１１を介してコン
トローラ８に接続され、このコントローラ８によって作
動制御される。The pulse motor 12 is connected to the controller 8 via the pulse driver 11, and its operation is controlled by the controller 8.

筒体７の内部において、中央部には先端部方向（第２図
中左方向）に不可視レーザ光線１４を発光する不可視レ
ーザ発光器１と、この不可視レーザ発光器１の近傍に設
けられ可視レーザ光線１５を発光する可視レーザ発光器
２と、この可視レーザ発光器２の先方光軸上に設けられ
たミラー３とが設置されている。Inside the cylindrical body 7, in the central part there is an invisible laser emitter 1 that emits an invisible laser beam 14 in the direction of the tip (leftward in FIG. 2), and a visible laser that is provided near the invisible laser emitter 1. A visible laser emitter 2 that emits a light beam 15 and a mirror 3 provided on the optical axis ahead of the visible laser emitter 2 are installed.

不可視レーザ発光器１には、例えばオン・オフ操作によ
って迅速なる作動・不作動動作を行い得る半導体レーザ
発光器が用いられ、不可視レーザ光線１４として例えば
Ｘ線を投射する。可視レーザ発光器２には例えばアルゴ
ン・ガスレーザ発光器が用いられ可視レーザ光線１５と
して赤色、その他の色のレーザ光線を発光する。ミラー
３は、プリズムの組合せ体から構成され、前記可視レー
ザ発光器３からの可視レーザ光線１５の経路を調整し不
可視レーザ光線１４とほぼ平行な方向へ投射する。The invisible laser light emitter 1 is a semiconductor laser light emitter that can be quickly activated and deactivated by turning on and off, for example, and emits, for example, X-rays as the invisible laser beam 14. For example, an argon gas laser emitter is used as the visible laser emitter 2, and emits red and other colored laser beams as the visible laser beam 15. The mirror 3 is composed of a combination of prisms, adjusts the path of the visible laser beam 15 from the visible laser emitter 3, and projects it in a direction substantially parallel to the invisible laser beam 14.

かかる構成を有するレーザ発光器について以下、その作
用について述べる。トンネル断面測定器などに組込まれ
て使用される場合、まずコントローラ８からの指令によ
って可視レーザ発光器２が作動せしめられ可視レーザ光
線１５が発光される。The operation of the laser emitter having such a configuration will be described below. When used by being incorporated into a tunnel cross-section measuring device or the like, first, the visible laser emitter 2 is activated by a command from the controller 8, and the visible laser beam 15 is emitted.

可視レーザ光１ｓ１５は可視レーザ発光器２から発光さ
れるとミラー３によって経路が調整され、不可視レーザ
発光器１の光軸近傍で当該光軸にほぼ平行になって、レ
ーザ発振器６の先方に向けて投射される。オペレータは
この可視レーザ光線１５を目印にしてトンネルの内壁の
如き被測定面４の測定部位５を検索すべくコントローラ
８を動作させてパルスモータ１２を駆動させ、筒体６を
中心軸周りに回転させ、また図示外の駆動機構によって
架台フレーム１０を揺動運動させる。When the visible laser light 1s15 is emitted from the visible laser emitter 2, its path is adjusted by the mirror 3, so that it becomes almost parallel to the optical axis near the optical axis of the invisible laser emitter 1, and is directed toward the other side of the laser oscillator 6. is projected. Using this visible laser beam 15 as a landmark, the operator operates the controller 8 to drive the pulse motor 12 and rotate the cylindrical body 6 around the central axis in order to search for a measurement site 5 on the surface 4 to be measured, such as the inner wall of a tunnel. In addition, the gantry frame 10 is caused to swing by a drive mechanism not shown.

このような操作によって測定部位５が決まると、次に不
可視レーザ発光器１がスイッチオンされ、不可視レーザ
光線１４が投射され距離測定、或いはその他の測定が行
われる。Once the measurement site 5 is determined by such an operation, the invisible laser emitter 1 is then switched on, and the invisible laser beam 14 is projected to perform distance measurement or other measurements.

〈発明の効果〉 以上説明したように、本発明によれば不可視レーザ発光
器に加えて可視レーザ発光器を設け、この可視レーザ発
光器から発光された可視レーザ光線を不可視レーザ光線
の近傍でほぼ平行な方向へ投射するよう設定したレーザ
発振器としたため、不可視レーザ発光器をオフしたまま
でレーザ発振器の方向転換や姿勢制御が出来るようにな
る。これによってレーザ発振器の安全性が向上すると共
に操作性もよくなる等種々の効果が得られる。<Effects of the Invention> As explained above, according to the present invention, a visible laser emitter is provided in addition to an invisible laser emitter, and the visible laser beam emitted from the visible laser emitter is almost emitted in the vicinity of the invisible laser beam. Since the laser oscillator is set to project in parallel directions, it is possible to change the direction and control the attitude of the laser oscillator while the invisible laser emitter is turned off. This provides various effects such as improved safety of the laser oscillator and improved operability.

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

第１図は本発明の原理を示す概略図、第２図は本発明に
よるレーザ発振器の一実施例を示す断面図である。 １・・不可視レーザ発光器、２・・可視レーザ発光器、
３・・ミラー、４・・被測定面、５・・測定部位、６・
・レーザ発振器、７・・筒体、８・・コントローラ、１
ｏ・・架台、１４・・不可視レーザ光線、１５・・可視
レーザ光線。 特許出願人　株式会社　　間　　粗 間　　　　　株式会社アイオイ・システム代理人弁理士
　　酒　　井　　　　　−同　　　　　　兼　　坂　　
　　　　真向　　　　　　兼　　坂　　　　　　繁第７
ＦｊＡFIG. 1 is a schematic diagram showing the principle of the invention, and FIG. 2 is a sectional view showing an embodiment of a laser oscillator according to the invention. 1. Invisible laser emitter, 2. Visible laser emitter,
3. Mirror, 4. Surface to be measured, 5. Measurement part, 6.
・Laser oscillator, 7...Cylinder, 8...Controller, 1
o... Frame, 14... Invisible laser beam, 15... Visible laser beam. Patent Applicant: Kouma Hazama Co., Ltd. Aioi System Co., Ltd. Representative Patent Attorney: Kanesaka Sakai
Mamukai Kanesaka Shigeru 7th
FjA

Claims (1)

【特許請求の範囲】 測定用筒体と、 筒体内の略中央部に設けられ不可視レーザ光線を投射す
る不可視レーザ発光器と、 不可視レーザ発光器とは別個に筒体内に設けられた可視
レーザ発光器と、 可視レーザ発光器の前方光軸上に設けられ、当該可視レ
ーザ発光器からの可視レーザ光線を、前記不可視レーザ
光線とほぼ平行な方向へ投射するミラーと、を有するレ
ーザ発振器。[Scope of Claims] A measuring cylinder, an invisible laser emitter provided approximately at the center of the cylinder and projecting an invisible laser beam, and a visible laser emitting device provided inside the cylinder separately from the invisible laser emitter. A laser oscillator, comprising: a mirror that is provided on the front optical axis of the visible laser emitter and projects a visible laser beam from the visible laser emitter in a direction substantially parallel to the invisible laser beam.
JP62136830A 1987-05-30 1987-05-30 Laser oscillator Pending JPS63301580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62136830A JPS63301580A (en) 1987-05-30 1987-05-30 Laser oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62136830A JPS63301580A (en) 1987-05-30 1987-05-30 Laser oscillator

Publications (1)

Publication Number Publication Date
JPS63301580A true JPS63301580A (en) 1988-12-08

Family

ID=15184499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62136830A Pending JPS63301580A (en) 1987-05-30 1987-05-30 Laser oscillator

Country Status (1)

Country Link
JP (1) JPS63301580A (en)

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