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    • 9. 发明授权
    • Compact electron gun having a microdot electron source and a
semiconductor laser using said gun for electronic pumping
    • 具有微点电子源的紧凑型电子枪和使用所述枪进行电子泵浦的半导体激光器
    • US5440579A
    • 1995-08-08
    • US162067
    • 1993-12-09
    • Engin MolvaRoger Accomo
    • Engin MolvaRoger Accomo
    • H01J1/30H01J1/304H01S3/0959H01S5/00H01S5/04H01S3/097
    • H01J1/3042H01S5/04
    • Compact electron gun having a microdot electron source and a semiconductor laser using said gun for electronic pumping. A compact electron gun is provided having a microdot electron emitting source (2), an anode (8) spaced from the microdots, means (16) for applying a high voltage to the and, array (10) of electrodes distributed around the bean emitted by the source for the strip focussing thereof onto the anode. The array also serves as an electrostatic screen for the source with respect to the high voltage of the array. The array is positioned between the source and the anode and has at least two pairs of electrodes (18, 18b, 20a, 20b) of different dimensions which are raised to respectively positive and negative voltages. The positive and the negative voltages produce a weak electrostatic field between the source and the electrode array and a strong electrostatic field between the electrode array and the anode. The electron gun also has means for applying a medium voltage to the electrode array and means for applying an appropriate voltage to the microdots.
    • PCT No.PCT / FR93 / 00353 Sec。 371日期1993年12月9日第 102(e)日期1993年12月9日PCT 1993年4月8日PCT PCT。 公开号WO93 / 21646 日期:1993年10月28日。具有微点电子源的激光电子枪和使用所述枪进行电子泵浦的半导体激光器。 提供了具有微点电子发射源(2),与微点间隔开的阳极(8)的小型电子枪,用于向发射的豆周围的电极施加高电压的装置(16) 通过源极将其聚焦到阳极上。 该阵列还用作相对于阵列的高电压的源的静电屏。 阵列位于源极和阳极之间,并且具有不同尺寸的至少两对电极(18,18b,20a,20b),其被提升到正电压和负电压。 正电压和负电压在源极和电极阵列之间产生弱静电场,并且在电极阵列和阳极之间产生强静电场。 电子枪还具有向电极阵列施加中等电压的装置和用于向微点提供适当电压的装置。