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    • 36. 发明公开
    • Inline electron gun having improved beam forming region
    • 在线 - Elektronenkanone mit verbicultem Strahlformungsbereich
    • EP0698904A1
    • 1996-02-28
    • EP95112807.3
    • 1995-08-16
    • THOMSON TUBES & DISPLAYS SA
    • Pontaillier, YvesLauzier, Rodolphe
    • H01J29/50H01J29/48
    • H01J29/485
    • An improved inline electron gun (10), for use in a color picture tube, includes a plurality of electrodes (16, 18, 20, 22, 24, 26) spaced from three cathodes (14) in the direction of a longitudinal axis (Z) of the gun. The electrodes form at least a beam forming region and a main focus lens in the paths of three electron beams, a center beam and two side beams. Each of the electrodes includes three inline apertures (56, 66) therein for passage of the three electron beams. The beam forming region includes the cathodes (14) and three consecutive electrodes, a G1 electrode (16), a G2 electrode (18) and a G3 electrode (20). The improvement comprises the G2 electrode having two linear projections (58) on either side of the inline apertures (56) therein. The projections parallel the inline direction of the apertures protrude in a direction parallel to the longitudinal axis, past the apertured portion (54) of the G3 electrode in overlapping relationship therewith. On the side (52) of the G3 electrode facing the G2 electrode, the G3 electrode has two linear channels (64) therein on either side of the inline apertures (66) therein. The channels are immediately adjacent the projections on the G2 electrode and in a spaced nested relationship therewith.
    • 用于彩色显象管的改进的一字形电子枪(10)包括沿纵轴方向与三个阴极(14)间隔开的多个电极(16,18,20,22,24,26) Z)的枪。 电极在三束电子束,中心光束和两个侧光束的路径中形成至少一个光束形成区域和主要聚焦透镜。 每个电极在其中包括三个在线孔径(56,66),用于三个电子束的通过。 光束形成区域包括阴极(14)和三个连续的电极,G1电极(16),G2电极(18)和G3电极(20)。 改进包括G2电极,其中在其中的内联孔(56)的任一侧上具有两个线性突起(58)。 平行于孔的直线方向的突出部沿与纵轴平行的方向突出,以与其重叠的关系经过G3电极的有孔部分(54)。 在G3电极的面向G2电极的一侧(52)上,G3电极在其中的线内孔(66)的任一侧上具有两个直线通道(64)。 通道与G2电极上的突起紧邻,并以与之间隔开的嵌套关系。
    • 39. 发明公开
    • Color cathode ray tube
    • 彩色阴极射线管
    • EP0670586A1
    • 1995-09-06
    • EP95102663.2
    • 1995-02-24
    • HITACHI, LTD.
    • Tsuzurahara, MamoruShirai, Shoji
    • H01J29/50H01J29/48
    • H01J29/503H01J29/566H01J2229/5632H01J2229/5635H01J2229/5687H01J2229/966
    • A color cathode ray tube equipped with an electron gun having a main lens of a large equivalent aperture by suppressing the spherical aberration and the astigmatism of the main lens sufficiently. The main lens for converging the three electron beams, which are arranged generally in parallel in one direction toward the fluorescent face, upon the fluorescent face, includes two electrodes arranged to confront each other with such flattened apertures that the diameter H taken in the one direction is larger than a diameter V taken perpendicularly to the one direction. The orbits of the two side ones of the three electron beams passing through the main lens have a constant gap S from the orbit of the center electron beam. The relations of H = 2(S + R) and R > S hold, if the distance between the orbits of the two side electron beams and the inner circumference, as taken in the one direction, of the electrodes constituting the main lens is designated at R.
    • 通过充分抑制主透镜的球面像差和像散,配备有具有大等效孔径的主透镜的电子枪的彩色阴极射线管。 用于使朝向荧光面大致平行地在一个方向上平行排列的三束电子束在荧光面上会聚的主透镜包括两个电极,该两个电极被布置为使得这些平坦的孔径彼此面对,使得直径H沿着一个方向 大于垂直于所述一个方向的直径V. 通过主透镜的三束电子束中的两侧电子束的轨道与中心电子束的轨道具有恒定的间隙S. 如果指定构成主透镜的电极的两侧电子束的轨道与沿一个方向取的内圆周之间的距离,则H = 2(S + R)和R> S的关系成立 在R.