Tube à rayons cathodiques muni d'un photodeviateur
    1.
    发明公开
    Tube à rayons cathodiques muni d'un photodeviateur 失效
    Kathodenstrahlröhremit einer Photoablenkeinheit。

    公开(公告)号:EP0418965A1

    公开(公告)日:1991-03-27

    申请号:EP90202454.6

    申请日:1990-09-17

    IPC分类号: H01J29/74 H01J31/08

    CPC分类号: H01J29/74

    摘要: Tube à rayons cathodiques, muni de moyens de dé­flexion électrostatique (12,13) du trajet d'un faisceau d'électrons ef issus d'une source d'électrons (11), lesdits moyens de déflexion comprenant au moins un photodéviateur électrostatique (20,21,22,24) incluant un photodétecteur (24) qui, sous l'action d'un rayonnement lumineux incident, créé des charges électriques e p qui modifient le champ électrique de déflexion du photodéviateur.
    Le photodéviateur peut être réalisé avec trois (20,21,22) ou deux (20,22) électrodes de sorte que le faisceau d'électrons e f et les charges électriques e p générées se situent ou non dans le même espace. Le photodétecteur peut être une photocathode (24) ou une photodiode (40).
    La structure peut être répétitive pour réaliser un photodéviateur distribué le long du trajet du faisceau d'électrons e f . Le tube à rayons cathodiques peut permettre de réaliser un oscilloscope.

    摘要翻译: 阴极射线管设置有从电子源(11)发出的电子束的路径的静电偏转的装置(12,13),所述偏转装置包括至少一个静电光电转换器(20,21,22,24) 包括在入射发光的作用下产生改变光电转换器电偏转场的电荷ep的光电检测器(24)。 ...可以用三(20,21,22)或两(20,22)个电极制造光电转换器,使得产生的电子束ef和电荷epe或不位于相同的空间中。 光电检测器可以是光电阴极(24)或光电二极管(40)。 ... <?>结构可以是重复的,以便产生沿着电子束ef的路径分布的光电转换器。 阴极射线管可以产生示波器。 ... ...

    Colour display tube having asymmetric deflection electrodes
    3.
    发明公开
    Colour display tube having asymmetric deflection electrodes 失效
    Farbbildröhremit asymmetricrischen Ablenkelektroden。

    公开(公告)号:EP0311184A1

    公开(公告)日:1989-04-12

    申请号:EP88202126.4

    申请日:1988-09-29

    IPC分类号: H01J29/74 H01J31/12

    CPC分类号: H01J29/74 H01J31/126

    摘要: A colour display tube (1) which comprises a display window (3), an emission system for emitting an emission pattern of electron beams (4 and 7) which comprises juxtaposed rows, deflection electrodes 12 for deflecting electron beams situated between the generation-modulation system and the display screen, a single deflection electrode extending between adjacent rows of the emission pattern and the deflection electrodes being alternately connected together electrically, and a phosphor pattern (13-15) correlated with the emission pattern and provided on the display window. Each row of the pattern extends asymmetrically between the deflection electrodes extending on each side hereof.

    摘要翻译: 一种彩色显象管(1),包括显示窗(3),用于发射电子束(4和7)的发射图案的发射系统,其包括并置的行,偏转电极12用于偏转位于生成调制 系统和显示屏幕,在发射图案的相邻行之间延伸的单个偏转电极和电气交替地连接在一起的偏转电极以及与发光图案相关并且设置在显示窗口上的荧光体图案(13-15)。 图案的每一行在其两侧延伸的偏转电极之间不对称地延伸。

    Image pick-up tube
    4.
    发明公开
    Image pick-up tube 失效
    摄像管。

    公开(公告)号:EP0235596A1

    公开(公告)日:1987-09-09

    申请号:EP87101411.4

    申请日:1987-02-03

    IPC分类号: H01J29/74 H01J31/26

    CPC分类号: H01J29/74

    摘要: In an electromagnetic focusing electrostatic type image pick-up tube the electrostatic deflecting electrodes (5) formed on the inner surface of the tube (1) consist of 2 pairs of electrodes. Each of these electrostatic deflecting electrodes (5) has a zig-zag shape from the electron gun (7) towards the target (3). This zig-zag shape is twisted in the circumferential direction around the axis of the tube (1) and variation rates of this twist amount are different, depending on the position in the axial direction.

    STREAK TUBE
    5.
    发明公开
    STREAK TUBE 有权
    条纹相机TUBE

    公开(公告)号:EP2775505A4

    公开(公告)日:2015-04-08

    申请号:EP12846760

    申请日:2012-08-07

    摘要: A steak tube has a container 2 with an entrance plate 2a and an output plate 2b, a photocathode 7 disposed in the container 2 and configured to emit electrons according to light to be measured, the light having been incident through the entrance plate 2a, and a sweep electrode 10 disposed in the container 2, having a pair of deflection plates 11, 12 for generating an electric field and a connection lead 13 connected to each deflection plate 11, 12, and configured to sweep the electrons in a sweep direction along the output plate 2b. An opposing of edges 11a, 11b of the deflection plate 11 in a direction of the output plate 2b are formed so as to extend in a direction from the entrance plate 2a to the output plate 2b, the connection lead 13 has a first connection portion 13a electrically connected to the deflection plate 11, and the first connection portion 13a is connected to the opposing of edges 11a, 11b.

    Travelling wave push-pull electron beam deflection structure having voltage gradient compensation
    6.
    发明公开
    Travelling wave push-pull electron beam deflection structure having voltage gradient compensation 失效
    “推拉式” - “宽松式” - “横向伸展”系统。

    公开(公告)号:EP0314369A2

    公开(公告)日:1989-05-03

    申请号:EP88309762.8

    申请日:1988-10-18

    申请人: TEKTRONIX, INC.

    IPC分类号: H01J29/74

    CPC分类号: H01J29/708

    摘要: An electron beam deflection structure (10) of the traveling wave type effectively cancels the longitudinal voltage gradients and the associated electron beam defocusing that are characteristic of such deflection structures. The deflection structure comprises a first helical coil member (48) and a second helical coil member (50) that are coaxial with the longitudinal axis (26) of the tube. Each of the coil members has wide and narrow segments which alternate along the length of the coil in sequence with the turns of the coil. The first coil member has its wide segments (92a) positioned on the bottom and its narrow segment (92b) on top of the coil member. The second coil member has its wide segments (94a) positioned on top and its narrow segments (94b) positioned on the bottom of the coil member. The narrow segments from one of the coil members are interleaved with the wide segments from the other coil member. A pair of linear arrays (100) and (102) are thereby formed which are positioned above and below the electron beam path and comprise wide and narrow segments from different coil members. Differential voltage signals of opposite polarity are applied to the first and second coil members of the deflection structure. Longitudinal voltage gradients along the wide segments are compensated by substantially equal but opposite voltage gradients on the narrow segments, thereby effectively canceling the longitudinal voltage gradients and eliminating any defocusing of the electron beam that the voltage gradients would cause.

    摘要翻译: 行波型的电子束偏转结构(10)有效抵消了这种偏转结构的特征的纵向电压梯度和相关的电子束散焦。 偏转结构包括与管的纵向轴线(26)同轴的第一螺旋线圈构件(48)和第二螺旋线圈构件(50)。 每个线圈构件具有宽且窄的段,其沿线圈的长度与线圈的匝顺序交替。 第一线圈构件具有位于底部的宽段(92a)和位于线圈构件顶部上的窄段(92b)。 第二线圈构件具有位于顶部的宽段(94a)和位于线圈构件的底部上的窄段(94b)。 来自一个线圈构件的窄段与来自另一个线圈构件的宽段交错。 由此形成一对线性阵列(100)和(102),其被定位在电子束路径的上方和下方,并且包括来自不同线圈构件的宽而窄的段。 具有相反极性的差分电压信号被施加到偏转结构的第一和第二线圈构件。 沿着宽段的纵向电压梯度由窄段上的基本相等但相反的电压梯度补偿,从而有效地消除了纵向电压梯度,并消除了电压梯度引起的电子束的任何散焦。

    Apparatus and method for scanning a flat screen cathode ray tube
    8.
    发明公开
    Apparatus and method for scanning a flat screen cathode ray tube 失效
    扫描平板阴极射线管的装置和方法

    公开(公告)号:EP0191596A3

    公开(公告)日:1987-11-11

    申请号:EP86300777

    申请日:1986-02-05

    发明人: Bohmer, William

    IPC分类号: H01J29/74 H01J31/12 H01J31/20

    摘要: The disclosure relates to an apparatus and method for forming a scanning electron beam for use in a flat screen cathode raytube device. An analog addressing method enables scanning of one axis of the screen of the CRT device. During scanning, all portions of a sheet of electrons emitted by a line cathode 18 are deflected at any given time and blocked by an analog horizontal-positioning deflection grid 20 except for one narrow portion disposed along the length of the line cathode. At the one portion, a narrow beam of electrons is formed. The grid contains an address plate 22 and a load plate 23. The load plate creates a voltage gradient causing each location along its horizontal axis to be at a distinct voltage. Horizontal scanning is accomplished by applying a varying central voltage to the address plate. This varying voltage will be matched by an equal voltage at a single predetermined location along the horizontal axis of the load plate adjacent to which electrons can pass undeflected in the form of a beam. At all other locations along the horizontal axis, unequal voltages on the plates deflect electrons in the sheet passing between them and cause the electrons to be blocked. Vertical scanning is accomplished by varying the voltage difference between two parallel vertical deflection plates (11, 12) between which the scanned electron beam passes. The disclosure also relates to the use of electromagnetic rather than electrostatic deflections in producing a scanning electron beam from a line cathode. In addition, the disclosure relates to multiple beams for scanning and producing of color images.

    Display tube
    9.
    发明公开
    Display tube 失效
    显示管

    公开(公告)号:EP0086004A2

    公开(公告)日:1983-08-17

    申请号:EP83200114.3

    申请日:1983-01-26

    发明人: Smith, James

    IPC分类号: H01J31/12 H01J29/74

    CPC分类号: H01J31/124 H01J29/74

    摘要: In small, flat in-line display tubes having a screen of the order of 75 mm diagonal it is important to be able to deflect the electron beam, say in the frame direction, along paths which are accurately parallel to each other in order to make the subsequent beam deflection processes easier.
    In order to do this the display tube includes an electron beam deflector comprising first and second electrode arrangements (30, 40) arranged successively along the electron beam (13) path from an electron gun (14). Each electrode arrangement comprises a pair of resistive plates (31, 32 and 41, 42) extending transverse to the path of the electron beam path and disposed laterally one on each side of the path. The plates (31, 32 and 41,42) of each electrode arrangement (30, 40) are joined at their top and bottom ends and a potential difference is applied across the plates to provide electrical fields (E) substantially normal to the electron beam path from the electron gun (14). The effect of the fields (E) provided by the respective electrode arrangements (30, 40) on the electron beam are equal and opposite so that the angular deflection (a) of the electron beam caused by the first electrode arrangement (30) is cancelled by the second electrode arrangement (40) and the electron beam (13) leaves the electron beam deflector on a path parallel to (or coincident with) the path it entered the deflector. In order to ensure that no additional angular deflection of the electron beam occurs when it crosses the interface between the first and second electrode arrangements (30, 40), the voltages (Vt2 and Vb2) applied to the second electrode arrangement are varied so that the point (B) of entry of the electron beam is at an equipotential with that of the beam.
    Other electrode arrangements are disclosed together with an embodiment of a flat display tube.

    摘要翻译: 在具有75毫米对角线量级的屏幕的小型扁平直列式显示管中,重要的是能够使电子束(例如在框架方向上)沿着彼此精确平行的路径偏转以便使 随后的光束偏转过程更容易。 为此,显示管包括电子束偏转器,该电子束偏转器包括从电子枪(14)沿着电子束(13)路径连续排列的第一和第二电极装置(30,40)。 每个电极装置包括横向于电子束路径的路径延伸的一对电阻板(31,32和41,42),并且在路径的每一侧横向地设置一个电阻板。 每个电极装置(30,40)的板(31,32和41,42)在它们的顶端和底端连接,并且在这些板之间施加电位差以提供基本垂直于电子束的电场(E) 来自电子枪(14)的路径。 由各个电极装置(30,40)提供的电场(E)对电子束的影响是相等和相反的,从而消除由第一电极装置(30)引起的电子束的角偏转(a)被消除 通过第二电极装置(40)和电子束(13)在与其进入偏转器的路径平行的路径上(或与其重合)离开电子束偏转器。 为了确保当电子束穿过第一和第二电极装置(30,40)之间的界面时不发生电子束的额外角度偏转,施加于第二电极装置的电压(Vt2和Vb2)是变化的, 电子束入射点(B)与光束的等电位相等。 其他电极布置与平面显示管的实施例一起公开。

    CATHODE ASSEMBLY FOR A LINE FOCUS ELECTRON BEAM DEVICE
    10.
    发明授权
    CATHODE ASSEMBLY FOR A LINE FOCUS ELECTRON BEAM DEVICE 失效
    阴极装置与线聚焦电子器件

    公开(公告)号:EP0880791B1

    公开(公告)日:2002-04-17

    申请号:EP96945292.9

    申请日:1996-12-26

    CPC分类号: H01J3/12 H01J33/02

    摘要: An electron beam device (10) has a cathode (34) that generates a fan-shaped electron beam. A first focusing lens (44, 46, 48, 50) includes first (48) and second (50) plates on opposed sides of a filament. The edges of the plates closest to a positively charged anode (20) are arcuate, so that as individual electrons are accelerated normal to the edge of the charged plates, the beam (60) increases in length with departure from the filament. A second focusing lens includes third (44) and fourth (46) plates on opposed sides of the first focusing lens. Each of the third and fourth plates has an arcuate edge proximate to the positively charged anode. The plates of the first and second focusing lenses provide focusing in a widthwise direction, while defining the increase in the lengthwise direction. The curvature of the plates of the first focusing lens defines a common radius with the plates of the second focusing lens.