会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明专利
    • Discharge excitation type pulse oscillation gas laser device
    • JP5331858B2
    • 2013-10-30
    • JP2011192295
    • 2011-09-05
    • 株式会社小松製作所ウシオ電機株式会社
    • 隆之 藪隆之 渡邊司 堀弘司 柿崎
    • H01S3/038
    • PROBLEM TO BE SOLVED: To provide a discharge excitation-type pulse oscillation gas laser apparatus enabling further highly repeating operation equal to or more than 4 kHz and use in long term by suppressing increase of a required gas flow rate and increase of supply power to a fan. SOLUTION: In the discharge excitation-type pulse oscillation gas laser apparatus, discharge surface shapes of an anode and a cathode in slender shapes are convex curve shapes in a cross section perpendicular to the longitudinal direction of the electrodes. A width We of the electrode at a ground potential and a minimum distance g between the discharge electrodes satisfy the relation of g/We>3. A power supply supplying power with density equal to or more than 50 mJ/cm 3 to the discharge electrodes at a pulse repetition number equal to or more than 4 kHz is provided. The convex curve shape of the discharge surface is any one of the shapes which are oval, hyperbolic, and a higher order function expressed by x N /(We/2) N +y N /h N =1, where h is an electrode curve part height, x is a coordinate at a position in the electrode width direction, y is a coordinate in the electrode convex direction, and N is an integer equal to or greater than 3. A ratio ΔE/Eave is equal to or less than 35%, where ΔE=difference of electric field intensities, and Eave=electric field intensity average value, within the electrode width. COPYRIGHT: (C)2012,JPO&INPIT