JPS6021581A - Gas laser tube - Google Patents

Gas laser tube

Info

Publication number
JPS6021581A
JPS6021581A JP12901683A JP12901683A JPS6021581A JP S6021581 A JPS6021581 A JP S6021581A JP 12901683 A JP12901683 A JP 12901683A JP 12901683 A JP12901683 A JP 12901683A JP S6021581 A JPS6021581 A JP S6021581A
Authority
JP
Japan
Prior art keywords
tube
cathode
gas laser
casing
tip
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
JP12901683A
Other languages
Japanese (ja)
Inventor
Norio Takahashi
鷹「はし」　紀雄
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12901683A priority Critical patent/JPS6021581A/en
Publication of JPS6021581A publication Critical patent/JPS6021581A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition

Landscapes

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

Abstract

PURPOSE:To obtain the cold cathode gas laser tube of small size and light weight by a method wherein this tube is provided with an Al cylindrical cold cathode closely contacted with a fine tube which generates laser plasma, and with a cathode protection valve at the tip of the fine tube. CONSTITUTION:The fine tube 5 is supported by a part 1' of a casing 1 and then held in coaxial form to the casing 1. The cylindrical cathode 3' closely contacted with the outer diameter of the fine tube 5 and on the part 1' of the casing 1 is provided. Besides, the cathode protection valve 6 stretching from the tip of the fine tube 5 to the tube in coaxial form is provided. Further, mirrors 4 and 4', a cathode electrode 3, and an anode 2 are provided. Thereby, the distance from the tip 5' of the tube 5 to the surface of the cathode 3' can be kept by the valve 6, and the lifetime of the cathode 3' is prolonged. Accordingly, the gas laser tube having the small diameter of the casing 1 and a small size and a light weight can be obtained.

Description

【発明の詳細な説明】 本発明は冷陰極ガスレーザ管、特にその陰極構造の改良
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to cold cathode gas laser tubes, and in particular to improvements in the cathode structure thereof.

カスレーザのうち、ガスレーザ管に共振器用のミラを取
付けたいわゆる内部ミラー形ガスレーザ管はその取扱い
の容易さと小型、軽量さによってレーザを応用する機器
への利用の主流を占めている。Among Cass lasers, so-called internal mirror gas laser tubes, in which a mirror for a resonator is attached to a gas laser tube, are mainly used in devices that apply lasers due to their ease of handling, small size, and light weight.

かかる小型のガスレーザ管にあって、レーザ管を小型コ
ンパクトにまとめる必要があることがらレーザの活性領
域となり、レーザプラブマを生成する細管を中心にした
同軸型の構造が採用されている。In such small gas laser tubes, since the laser tube needs to be compact and compact, a coaxial type structure is adopted, which is centered around a thin tube that serves as the active region of the laser and generates laser plasma.

従来のこの棟のガスレーザ管は第１図に示すように、細
ｔ５は外囲器１の１部１′によって支持され、外囲器１
と同軸状に保持されている。そして外囲器ｌの内壁に沿
って、アルミニウム製筒のカソード３′を設けている、
なお４．４′はミラー、３はカソード用電極、２はアノ
ードである。In the conventional gas laser tube of this type, as shown in FIG.
is held coaxially with the And along the inner wall of the envelope l, an aluminum cylinder cathode 3' is provided.
Note that 4.4' is a mirror, 3 is a cathode electrode, and 2 is an anode.

しかし、従来の構造では細管５の先端５′からカソード
３′の内壁までの距離を大きくとらないとカソード３′
の寿命が短かくなるため、カソード３′の外径は大きく
なシ外曲器１の外径も大きくなる欠点がめる。However, in the conventional structure, unless the distance from the tip 5' of the thin tube 5 to the inner wall of the cathode 3' is large, the cathode 3'
Since the life of the cathode 3' is large, the outer diameter of the external bender 1 is also large.

本発明の目的は、これらの欠点を除去し、外囲器１の外
径の小さな小型、軽量な冷陰極ガスレーザ管を提供する
ことにある。An object of the present invention is to eliminate these drawbacks and provide a compact and lightweight cold cathode gas laser tube in which the outer diameter of the envelope 1 is small.

次に本発明の一実施例について図面を参照しなからｉｔ
ｔ明する。Next, please refer to the drawings for an embodiment of the present invention.
I will explain.

細管５は外囲器１の１部１′によって支持され、外囲器
１と同軸状に保持されている。そして、細管５の外径お
よび前記外囲器１の１部１′の外壁に密着した筒状のカ
ソード３′を設けられている。またＭ管５の先端から細
管に同軸状に広がったカソード保護パルプ６が設けられ
ている。なお、４．４′はミラー、３はカソード用電極
、２はアノードである。The capillary tube 5 is supported by a portion 1' of the envelope 1 and held coaxially therewith. A cylindrical cathode 3' is provided in close contact with the outer diameter of the thin tube 5 and the outer wall of the first part 1' of the envelope 1. Further, a cathode protection pulp 6 is provided which extends coaxially from the tip of the M tube 5 to the thin tube. Note that 4.4' is a mirror, 3 is a cathode electrode, and 2 is an anode.

このようにすれば細管５の先端５′からカソード３′の
表面までの距離はカソード保護パルプ６により保たれカ
ソード３′の寿命本長くなる。そして外囲器１の外径も
小さく、小型、軽量のガスレーザ管が得られる。In this way, the distance from the tip 5' of the thin tube 5 to the surface of the cathode 3' is maintained by the cathode protective pulp 6, thereby extending the life of the cathode 3'. The outer diameter of the envelope 1 is also small, and a small and lightweight gas laser tube can be obtained.

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

第１図は従来のガスレーザ管の断面図、第２図は本発明
の一実施例を示すカスレーザ管の断面図である。 ｌ・・・・・・外囲器、２・・・・・・アノード、３，
３′・・・・・・カソード、４．４’・・・・−・ミラ
ー、５・・・・・・細管、６・・・・・・カソード保護
パルプ。FIG. 1 is a sectional view of a conventional gas laser tube, and FIG. 2 is a sectional view of a gas laser tube showing an embodiment of the present invention. l...Envelope, 2...Anode, 3,
3'...Cathode, 4.4'...-Mirror, 5...Tube, 6...Cathode protection pulp.

Claims (1)

【特許請求の範囲】[Claims] 冷陰極ガスレーザ管において、ａ管に密着したアルミニ
ウム簡の冷陰極と、前記細管の先端にカソード保護パル
プを設けたことを特徴とするガスレーザ管。1. A cold cathode gas laser tube, characterized in that a cold cathode made of aluminum strip is closely attached to the a-tube, and a cathode protective pulp is provided at the tip of the thin tube.
JP12901683A 1983-07-15 1983-07-15 Gas laser tube Pending JPS6021581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12901683A JPS6021581A (en) 1983-07-15 1983-07-15 Gas laser tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12901683A JPS6021581A (en) 1983-07-15 1983-07-15 Gas laser tube

Publications (1)

Publication Number Publication Date
JPS6021581A true JPS6021581A (en) 1985-02-02

Family

ID=14999074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12901683A Pending JPS6021581A (en) 1983-07-15 1983-07-15 Gas laser tube

Country Status (1)

Country Link
JP (1) JPS6021581A (en)

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