JPH0711477Y2 - Gas laser tube - Google Patents

Gas laser tube

Info

Publication number
JPH0711477Y2
JPH0711477Y2 JP14665588U JP14665588U JPH0711477Y2 JP H0711477 Y2 JPH0711477 Y2 JP H0711477Y2 JP 14665588 U JP14665588 U JP 14665588U JP 14665588 U JP14665588 U JP 14665588U JP H0711477 Y2 JPH0711477 Y2 JP H0711477Y2
Authority
JP
Japan
Prior art keywords
laser tube
brewster window
fixed
support
vacuum envelope
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
Application number
JP14665588U
Other languages
Japanese (ja)
Other versions
JPH0268464U (en
Inventor
弘人 浦方
圭司 岡田
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP14665588U priority Critical patent/JPH0711477Y2/en
Publication of JPH0268464U publication Critical patent/JPH0268464U/ja
Application granted granted Critical
Publication of JPH0711477Y2 publication Critical patent/JPH0711477Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【考案の詳細な説明】 [考案の目的] (産業上の利用分野) この考案はガスレーザ管に係り、特にそのブリュースタ
窓を高精度に且つ容易に組立て固定出来る構造に関す
る。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a gas laser tube, and more particularly to a structure capable of assembling and fixing a Brewster window with high precision and ease.

(従来の技術) 従来、ガスレーザ管におけるブリュースタ窓の支持構造
は、例えば実公昭60−22619号公報に記載されたものが
あるが、これは第4図に示すように構成されている。
(Prior Art) Conventionally, a supporting structure of a Brewster window in a gas laser tube is disclosed in, for example, Japanese Utility Model Publication No. 60-22619, which is constructed as shown in FIG.

即ち、板状ブリュースタ窓11が、支持円筒12a、12bにブ
リュースタ角度で挾持固定されている。この支持円筒12
a、12bの外周には金属円筒13が嵌合され、この金属円筒
13の一端にはミラー14を有するミラー基板15が固着さ
れ、他端はガスを封入するレーザ管本体の真空外囲器16
に接合されている。この場合、金属円筒13の他端近くの
内面には環状突起17が設けられ、ブリュースタ窓11及び
支持円筒12a、12bはこの環状突起17と金属円筒13とミラ
ー基板15とで押圧されることにより固定されている。
That is, the plate-shaped Brewster window 11 is sandwiched and fixed to the support cylinders 12a and 12b at the Brewster angle. This support cylinder 12
A metal cylinder 13 is fitted around the outer periphery of a and 12b.
A mirror substrate 15 having a mirror 14 is fixed to one end of 13 and a vacuum envelope 16 of the laser tube main body for enclosing gas is attached to the other end.
Is joined to. In this case, an annular protrusion 17 is provided on the inner surface near the other end of the metal cylinder 13, and the Brewster window 11 and the support cylinders 12a and 12b are pressed by the annular protrusion 17, the metal cylinder 13 and the mirror substrate 15. It is fixed by.

(発明が解決しようとする課題) 以上説明した従来技術によると、ブリュースタ窓11を保
持する支持円筒12a、12bは、押圧により固定されている
ため、環境温度変化や振動によってブリュースタ窓11の
偏光面角度ずれが生じてしまう。
(Problems to be Solved by the Invention) According to the conventional technique described above, since the support cylinders 12a and 12b holding the Brewster window 11 are fixed by pressing, the Brewster window 11 is affected by environmental temperature change or vibration. Polarization plane angle deviation occurs.

又、ろう接により支持円筒12a、12bの一部を固定し、そ
の後、ブリュースタ窓11を装着する方法も提案されてい
るが、空間が非常に狭いことなどから製造上困難であ
る。
A method has also been proposed in which part of the support cylinders 12a, 12b is fixed by brazing, and then the Brewster window 11 is mounted, but this is difficult to manufacture because the space is very small.

この考案は、ブリュースタ窓の偏光面角度がずれること
のないレーザ管を提供することを目的とする。
It is an object of the present invention to provide a laser tube in which the polarization plane angle of Brewster window does not shift.

[考案の構成] (課題を解決するための手段) この考案は、ガスが封入されるレーザ管本体の真空外囲
器の管内端部の一部に凹部が設けられ、且つ板状ブリュ
ースタ窓が挾持された2つの支持体の一方に凸部が突設
され、この凸部と上記凹部が密に嵌合され、更に支持体
の外周に、底部にミラー基板が固着され開口部にフラン
ジ部を有する金属筒が嵌合され、この金属筒のフランジ
部が真空外囲器の端部に気密接合されることにより、2
つの支持円筒及びブリュースタ窓が押圧固定されてなる
ガスレーザ管である。
[Means for Solving the Problems] (Means for Solving the Problem) The invention is directed to a plate-shaped Brewster window in which a recess is provided in a part of an inner end portion of a vacuum envelope of a laser tube body in which a gas is sealed. A protrusion is provided on one of the two support bodies that are held between them, and the protrusion and the recess are closely fitted, and a mirror substrate is fixed to the outer periphery of the support at the bottom and the flange is provided at the opening. The metal cylinder having the above is fitted, and the flange portion of the metal cylinder is airtightly joined to the end portion of the vacuum envelope.
It is a gas laser tube in which two supporting cylinders and a Brewster window are pressed and fixed.

(作用) この考案によれば、ブリュースタ窓を高精度に且つ容易
に組立て固定出来、ブリュースタ窓の偏光面角度がずれ
ることはない。
(Operation) According to this invention, the Brewster window can be assembled and fixed with high accuracy and easily, and the polarization plane angle of the Brewster window does not shift.

(実施例) 以下、図面を参照して、この考案の一実施例を詳細に説
明する。
Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

この考案によるガスレーザ管の主要部は第1図に示すよ
うに構成され、図中の符号1はガスを封入するレーザ管
本体の真空外囲器であり、この真空外囲器1の管内端部
1aに凹部2が設けられている。
The main part of the gas laser tube according to the present invention is constructed as shown in FIG. 1, and reference numeral 1 in the figure is a vacuum envelope of the laser tube main body for enclosing gas.
A recess 2 is provided in 1a.

又、板状のブリュースタ窓3は、支持体例えば支持円筒
内にブリュースタ角度で固定されている。この場合、支
持円筒は筒状にしてブリュースタ角度で切断された4aと
4bとからなり、この支持円筒4a、4bによりブリュースタ
窓3は挾持されている。そして、一方の支持円筒4aに
は、第2図からも明らかなように、凹部2に対応して凸
部5が突設されている。この支持円筒4a、4bは、組立て
時に真空外囲器1の管内端部1aに押圧されるが、この
時、その凸部5と管内端部1aの凹部2が密に嵌合され
る。
The plate-shaped Brewster window 3 is fixed at a Brewster angle in a support, for example, a support cylinder. In this case, the support cylinder is made cylindrical and 4a cut at Brewster's angle
The Brewster window 3 is held by the support cylinders 4a and 4b. Then, as is clear from FIG. 2, one of the support cylinders 4 a is provided with a convex portion 5 corresponding to the concave portion 2. The support cylinders 4a and 4b are pressed against the inner tube end 1a of the vacuum envelope 1 during assembly, and at this time, the convex portion 5 and the concave portion 2 of the inner tube end 1a are closely fitted.

更に、支持円筒4a、4bの外周には、有底筒状にして底部
に透孔を有すると共に開口部にフランジ部6aを有する金
属円筒6が嵌合され、フランジ部6aが真空外囲器1の端
部1aに気密溶接により接合されている。
Further, on the outer circumference of the support cylinders 4a and 4b, a metal cylinder 6 having a bottomed cylindrical shape and having a through hole at the bottom and a flange portion 6a at the opening is fitted, and the flange portion 6a is attached to the vacuum envelope 1 Is joined to the end portion 1a of the above by airtight welding.

この結果、支持円筒4a、4bが、金属円筒6と真空外囲器
1の管内端部1aとで押圧されることになり、ブリュース
タ窓3は所定のブリュースタ角度で確実に挾持固定され
ることになる。
As a result, the support cylinders 4a and 4b are pressed by the metal cylinder 6 and the tube inner end portion 1a of the vacuum envelope 1, and the Brewster window 3 is securely sandwiched and fixed at a predetermined Brewster angle. It will be.

そして、金属円筒6の底部には、ミラー7を有するミラ
ー基板8が固着されており、ミラー7は金属円筒6の底
部の透孔内に位置している。
A mirror substrate 8 having a mirror 7 is fixed to the bottom of the metal cylinder 6, and the mirror 7 is located in the through hole at the bottom of the metal cylinder 6.

このような構造のため、ブリュースタ窓3は精度良く固
定されている。従って、ガスレーザ管は装置の水平面に
対し、特定(一般には垂直)方向の直線偏光のレーザビ
ームを出力するが、この考案では容易にこの方向性を出
すことが出来る。
Due to such a structure, the Brewster window 3 is accurately fixed. Therefore, the gas laser tube outputs a linearly polarized laser beam in a specific (generally vertical) direction with respect to the horizontal plane of the apparatus, but this direction can be easily obtained in the present invention.

尚、この考案のガスレーザ管は、上記以外は周知のガス
レーザ管と同様構成ゆえ、詳細な説明は省略する。
The gas laser tube of the present invention has the same structure as that of a known gas laser tube except the above, and therefore detailed description thereof will be omitted.

(変形例) 第3図はこの考案の変形例を示したもので、上記実施例
と同様効果が得られる。
(Modification) FIG. 3 shows a modification of the present invention, in which the same effect as the above embodiment can be obtained.

即ち、この変形例では、金属円筒6の底部にミラーを有
するミラー基板8が固着されているが、組立てに当たり
ミラー基板8を金属円筒6の底部に当接し、ミラー基板
8の側面を低融点粉末ガラス9により半田付けし、その
後、フランジ部6aを真空外囲器1の端部1aに気密溶接し
たものである。
That is, in this modification, the mirror substrate 8 having a mirror is fixed to the bottom of the metal cylinder 6, but the mirror substrate 8 is brought into contact with the bottom of the metal cylinder 6 during assembly, and the side surface of the mirror substrate 8 is made of the low melting point powder. It is soldered with glass 9, and then the flange portion 6a is hermetically welded to the end portion 1a of the vacuum envelope 1.

この変形例によれば、ミラー7への熱応力歪を緩和出
来、作業性も向上する。
According to this modification, the thermal stress strain on the mirror 7 can be relaxed and the workability is also improved.

尚、第3図においては、便宜上、ブリュースタ窓及び支
持円筒は省略されているが、金属円筒6内には上記実施
例と同様なブリュースタ窓及び支持円筒が存在すること
は、言うまでもない。
Although the Brewster window and the supporting cylinder are omitted in FIG. 3 for the sake of convenience, it goes without saying that the Brewster window and the supporting cylinder similar to those in the above-described embodiment are present in the metal cylinder 6.

尚、ブリュースタ窓を挾持し支持する支持体は円筒に限
らず、例えば角筒でも良いし、或いはコ字状に折曲げた
ものでも良い。
The support body that holds and supports the Brewster window is not limited to a cylinder, and may be, for example, a square tube or a U-shaped bent body.

[考案の効果] 以上説明したようにこの考案によれば、真空外囲器の管
内端部の一部に凹部が設けられ、この凹部にブリュース
タ窓を挾持する一方の支持体の凸部が密に嵌合され、更
に支持体の外周に金属筒が嵌合され、そのフランジ部が
真空外囲器の端部に気密接合されることにより、2つの
支持体及びブリュースタ窓が押圧固定されているので、
ブリュースタ窓を高精度に且つ容易に組立て固定出来
る。
[Effect of the Invention] As described above, according to the present invention, a concave portion is provided in a part of the inner end of the tube of the vacuum envelope, and the convex portion of one support body that holds the Brewster window is provided in the concave portion. The support and the Brewster window are pressed and fixed by tightly fitting and further fitting a metal cylinder around the outer periphery of the support and air-tightly joining the flange portion to the end of the vacuum envelope. Because
The Brewster window can be assembled and fixed with high precision and ease.

この結果、ブリュースタ窓の偏光面角度がずれることは
なく、信頼性が著しく向上する。
As a result, the polarization plane angle of the Brewster window does not shift, and the reliability is significantly improved.

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

第1図はこの考案の一実施例に係るガスレーザ管の要部
を示す縦断面図、第2図はこの考案のガスレーザ管で用
いる支持円筒の一方を示す斜視図、第3図はこの考案の
変形例を示す縦断面図、第4図は従来のガスレーザ管の
要部を示す縦断面図である。 1…真空外囲器、1a…真空外囲器の管内端部、2…凹
部、3…ブリュースタ窓、4a、4b…支持円筒(支持
体)、5…凸部、6…金属円筒、6a…フランジ部、7…
ミラー、8…ミラー基板。
FIG. 1 is a longitudinal sectional view showing an essential part of a gas laser tube according to an embodiment of the present invention, FIG. 2 is a perspective view showing one of supporting cylinders used in the gas laser tube of the present invention, and FIG. FIG. 4 is a vertical sectional view showing a modified example, and FIG. 4 is a vertical sectional view showing an essential part of a conventional gas laser tube. DESCRIPTION OF SYMBOLS 1 ... Vacuum envelope, 1a ... Tube inner end part of vacuum envelope, 2 ... Recess, 3 ... Brewster window, 4a, 4b ... Support cylinder (support), 5 ... Convex part, 6 ... Metal cylinder, 6a … Flange, 7…
Mirror, 8 ... Mirror substrate.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】ガスが封入されるレーザ管本体の真空外囲
器の管内端部の一部に凹部が設けられ、且つ板状ブリュ
ースタ窓が挾持された2つの支持体の一方に凸部が突設
され、この凸部と上記凹部が密に嵌合され、更に上記支
持体の外周に、底部にミラー基板が固着され開口部にフ
ランジ部を有する金属筒が嵌合され、この金属筒のフラ
ンジ部が上記真空外囲器の端部に気密接合されることに
より、上記2つの支持体及びブリュースタ窓が押圧固定
されてなることを特徴とするガスレーザ管。
1. A concave portion is provided in a part of an inner end portion of a vacuum envelope of a laser tube main body in which a gas is sealed, and a convex portion is provided on one of two supports in which a plate-shaped Brewster window is held. And the convex portion and the concave portion are closely fitted to each other, and further, a metal cylinder having a mirror substrate fixed to the bottom and a flange portion at the opening is fitted to the outer periphery of the support body. The gas laser tube, wherein the two support bodies and the Brewster window are pressed and fixed by hermetically bonding the flange portion of the above to the end portion of the vacuum envelope.
JP14665588U 1988-11-11 1988-11-11 Gas laser tube Expired - Lifetime JPH0711477Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14665588U JPH0711477Y2 (en) 1988-11-11 1988-11-11 Gas laser tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14665588U JPH0711477Y2 (en) 1988-11-11 1988-11-11 Gas laser tube

Publications (2)

Publication Number Publication Date
JPH0268464U JPH0268464U (en) 1990-05-24
JPH0711477Y2 true JPH0711477Y2 (en) 1995-03-15

Family

ID=31416348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14665588U Expired - Lifetime JPH0711477Y2 (en) 1988-11-11 1988-11-11 Gas laser tube

Country Status (1)

Country Link
JP (1) JPH0711477Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5273711B2 (en) * 2008-07-30 2013-08-28 株式会社 ソキア・トプコン Non-reflective jig

Also Published As

Publication number Publication date
JPH0268464U (en) 1990-05-24

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