Charged particle beam scanning device
    41.
    发明授权
    Charged particle beam scanning device 失效
    带电粒子束扫描装置

    公开(公告)号:US3979636A

    公开(公告)日:1976-09-07

    申请号:US526032

    申请日:1974-11-21

    Inventor: John E. Gunther

    CPC classification number: H01J31/12 H01J29/52 H01J63/00 H01J2893/0031

    Abstract: A plurality of control plates is sandwiched between a cathode and a target to control the flow of charged particles such as electrons and ions between the cathode and the target. The cathode includes an elongated filament for generating charged particles such as electrons. A first electrode is positioned behind the filament with a second electrode having a positive potential interdigitated with the first electrode. The first electrode is divided into segments with a negative potential applied to those segments of first electrode where emission is desired from the elongated filament, and in those areas were emission is not desired those segments of the first electrode are switched sufficiently negative to cut off emission from the elongated filament. Each control plate has a plurality of apertures formed therein which are effectively aligned with corresponding apertures on the other control plates. The aligned apertures form beam channels. The control plates have paired conductive electrodes thereon arranged at predetermined coded finger patterns. Voltages are selectively applied to the control plate electrodes by switching circuitry to focus the charged particles through the apertures associated with selective electrodes while simultaneously aborting the passage of charged particles through the apertures associated with the remaining electrodes. In this manner by selective switching control of the control plate a beam, or a plurality of beams, can be directed to a selected portion or portions of the target at the time.

    Abstract translation: 多个控制板夹在阴极和靶之间,以控制阴极和靶之间的电荷和离子等带电粒子的流动。 阴极包括用于产生诸如电子的带电粒子的细长丝。 第一电极位于灯丝后面,具有与第一电极交叉的正电位的第二电极。 第一电极被分成具有负电位的段,其中第一电极的那些段需要从细长的细丝发射,并且在那些区域是不期望的,第一电极的那些段被充分切换以切断发射 从细长的细丝。 每个控制板具有形成在其中的多个孔,其与其它控制板上的对应的孔有效对准。 对准的孔形成束通道。 控制板在其上配置有成对的导电电极,其中预定的编码指形图案布置 通过切换电路将电压选择性地施加到控制板电极,以将带电粒子聚焦通过与选择性电极相关联的孔,同时中止带电粒子通过与剩余电极相关联的孔。 以这种方式,通过控制板的选择性切换控制,光束或多个光束可以被定向到目标的选定部分或多个部分。

    DOWNHOLE SOURCES HAVING ENHANCED IR EMISSION
    46.
    发明公开
    DOWNHOLE SOURCES HAVING ENHANCED IR EMISSION 审中-公开
    近红外频谱分析仪中使用的钻孔

    公开(公告)号:EP2583297A1

    公开(公告)日:2013-04-24

    申请号:EP10853352.2

    申请日:2010-06-16

    Abstract: Light sources are provided with enhanced low-frequency (e.g., near infrared) emission. Some disclosed embodiments include a filament and at least one re-radiator element. The filament heats the re-radiator element to a steady-state temperature that is at least one quarter of the filament's absolute temperature. As disclosed herein, the increased surface area provided by the re-radiator element provides enhanced IR radiation from the light source. Patterning or texturing of the surface can further increase the re-radiator element's surface area. Various shapes such as disks, collars, tubes are illustrated and can be combined to customize the spectral emission profile of the light source. Some specific embodiments employ a coating on the bulb as the re-radiator element. The coating can be positioned to occlude light from the filament or to augment light from the filament, depending on the particular application. The various re-radiator elements can be positioned inside or outside the bulb.

    Wavelength-tunable light emitting device
    47.
    发明公开
    Wavelength-tunable light emitting device 审中-公开
    Lichtemittierende Vorrichtung mit abstimmbarerWellenlänge

    公开(公告)号:EP1014456A2

    公开(公告)日:2000-06-28

    申请号:EP99118902.8

    申请日:1999-09-24

    CPC classification number: H01J63/00 B82Y20/00

    Abstract: A wavelength-tunable light emitting device includes a substrate having an atomic-scale structure formed on a surface thereof, a needle member for locally applying a voltage through a vacuum space or a transparent insulating member to the substrate to cause a tunnel current to flow through the atomic-scale structure, and a variable-voltage power supply capable of varying voltage applied across the gap between the substrate and the needle member. A tunnel current flows from the tip of the needle member to the atomic-scale structure when a predetermined voltage is applied across the gap between the substrate and the needle member, and light is emitted from a local region in which the tunnel current flows. The wavelength of the light varies when the voltage applied across the gap between the substrate and the needle member is varied.

    Abstract translation: 波长可调谐发光器件包括其表面上形成有原子级结构的衬底,用于通过真空空间或透明绝缘构件局部施加电压到衬底的针构件,以使隧道电流流过 原子级结构,以及能够改变施加在基板和针构件之间的间隙上的电压的可变电压电源。 当在衬底和针构件之间的间隙施加预定电压时,隧道电流从针构件的尖端流向原子尺度结构,并且从隧道电流流动的局部区域发射光。 当穿过衬底和针构件之间的间隙施加的电压变化时,光的波长变化。

    DISCHARGE LAMP ARRANGEMENT
    48.
    发明授权
    DISCHARGE LAMP ARRANGEMENT 失效
    放电灯安排

    公开(公告)号:EP0543822B1

    公开(公告)日:1997-04-16

    申请号:EP91910739.1

    申请日:1991-06-14

    CPC classification number: H01J63/00

    Abstract: A discharge lamp assembly in which electromagnetic radiation is produced by a gas discharge in an envelope containing a fill. The charge carriers for initiating and sustaining the main discharge are supplied from a plasma created by a pilot discharge in the fill.

    Single electrode beam mode fluorescent lamp for D.C. use
    50.
    发明公开
    Single electrode beam mode fluorescent lamp for D.C. use 失效
    单电极光束荧光灯用于直流电源

    公开(公告)号:EP0084268A3

    公开(公告)日:1984-05-02

    申请号:EP82307012

    申请日:1982-12-31

    CPC classification number: H01J63/00 H01J61/72

    Abstract: The lamp shown herein is a beam mode fluorescent lamp for general lighting applications. The lamp comprises a light transmitting envelope (31 having a phosphor coating (37) on its inner surface, enclosing a single electrode (29) including a thermionic cathode (34) for emitting electrons and an integral anode (35) for accelerating the electrons and forming an electron beam, and a fill material, such as mercury, which emits ultraviolet radiation upon excitation. The electrode configuration provides for use of a single power source and minimal number of power leads. In addition, a separate cathode heater filament is not required.

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