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    • 1. 发明授权
    • Cathode ray tube with compensation for beam landing spot distortion due
to wide-angle beam deflection
    • 阴极射线管由于广角光束偏转而补偿光束着陆点变形
    • US3949262A
    • 1976-04-06
    • US579581
    • 1975-05-21
    • Akio OhkoshiTakeo KajiTsunenari Saito
    • Akio OhkoshiTakeo KajiTsunenari Saito
    • H01J29/48H01J29/50H01J29/56H01J29/62H01J29/02H01J29/51
    • B82Y10/00H01J29/503H01J29/566H01J29/62
    • In a cathode ray tube in which an electron gun directs one or more electron beams against a phosphor screen through an electron focusing lens, preferably of the unipotential type, constituted by a plurality of tubular electrodes arranged coaxially in succession along the tube axis with a relatively low potential being applied to one of the electrodes and a relatively high potential being applied to the other electrodes, and in which each electron beam is deflected, after passing through the focusing lens, so as to scan the screen in line-scanning and vertical directions; distortion of the landing spot of each beam on the screen, particularly when deflected toward the peripheral portions of the screen, is removed or compensated by forming the tubular electrode which is maintained at the relatively low potential of two axially divided tubular electrode portions having respective end plates or walls extending across their adjacent ends and formed with aligned apertures for the passage through the latter of each beam, with a first pair of diametrically opposed flanges projecting from the periphery of one of the apertures in the axial direction toward the other aperture, and a second pair of diametrically opposed flanges projecting from the periphery of such other aperture in the axial direction toward said one aperture and being orthogonally disposed in relation to said first pair of flanges so as to be interfitted between the latter, so that the application across the two electrode portions of a correction voltage which varies with the angle of deflection of each said beam from the tube axis is effective to provide a varying electric field for obtaining a uniform shape of the landing spot of each beam on all portions of the screen.
    • 在阴极射线管中,其中电子枪通过电子聚焦透镜(最好是单电位型)将一个或多个电子束引导到荧光屏上,所述电子聚焦透镜由多个管状电极构成,多个管状电极沿着管轴相继同轴地排列, 低电位被施加到一个电极,并且相对高的电位被施加到其他电极,并且其中每个电子束被偏转,在通过聚焦透镜之后,以扫描线扫描和垂直方向 ; 每个光束在屏幕上的着陆点的变形,特别是当偏转到屏幕的周边部分时,通过形成保持在具有相应端部的两个轴向分开的管状电极部分的较低电势的管状电极而被去除或补偿 板或壁延伸穿过其相邻的端部并且形成有对准的孔,用于通过每个梁的后部,其中第一对直径相对的凸缘在一个孔的周边沿轴向方向朝向另一个孔突出,以及 第二对直径相对的凸缘,其从所述另一个孔的周边在轴向方向上朝向所述一个孔突出,并且相对于所述第一对凸缘正交地布置,以便在所述凸缘之间配合 校正电压的两个电极部分随着偏转角度而变化 每个所述光束从管轴线是有效的,以提供变化的电场以获得屏幕的所有部分上的每个光束的着陆点的均匀形状。
    • 7. 发明授权
    • Convergence correction circuit for cathode ray tube
    • 阴极射线管收敛校正电路
    • US5396156A
    • 1995-03-07
    • US126186
    • 1993-09-24
    • Yukinobu IguchiHiromu HosokawaIchiro UtsumiNobuya OkanoTsunenari Saito
    • Yukinobu IguchiHiromu HosokawaIchiro UtsumiNobuya OkanoTsunenari Saito
    • H01J29/51H04N9/28
    • H04N9/28H01J29/51
    • A dynamic convergence apparatus of a simplified arrangement can reduce a distortion of a beam spot on a periphery of a picture screen and improve a focusing, wherein a parallel circuit of a high resistance value resistor (R) and a diode (D) is connected between low voltage side electrode plates (3), (4) and high voltage side electrode plates (1), (2) to which an anode voltage (HV) is applied, a capacitor (C) is formed by coating a conductive layer on the inside and outside of a tube envelope of a color CRT while glass of the tube envelope is used as a dielectric material, and a convergence voltage which results from adding a vertical parabolic wave voltage to the horizontal blanking period of a modulated voltage provided by amplitude-modulating a DC voltage very slightly lower than the anode voltage (HV) by horizontal and vertical parabolic waves is commonly supplied from one end side (outside of the tube envelope) of the capacitor (C) to the low voltage side electrode plates (3), (4).
    • 简化布置的动态会聚装置可以减少图像屏幕周边上的光斑的失真并改善聚焦,其中高电阻值电阻(R)和二极管(D)的并联电路连接在 低压侧电极板(3),(4)和施加阳极电压(HV)的高压侧电极板(1),(2),电容器(C) 使用管外壳的玻璃作为介电材料的彩色CRT的管外侧的内侧和外侧,以及通过向由振幅调制电路提供的调制电压的水平消隐周期添加垂直抛物线波电压而产生的会聚电压, 通过水平和垂直抛物线波调制非常稍低于阳极电压(HV)的直流电压通常从电容器(C)的一端(管外)向低压侧电极板(3)提供, ,(4)。
    • 9. 发明授权
    • Method for reducing resonant frequency vibrations in a cathode ray tube
    • 降低阴极射线管谐振频率振动的方法
    • US06469430B1
    • 2002-10-22
    • US09286833
    • 1999-04-06
    • Koji SaitaTsunenari SaitoTsuneo MuchiKenichi Ozawa
    • Koji SaitaTsunenari SaitoTsuneo MuchiKenichi Ozawa
    • H01J2980
    • H01J29/073H01J2229/0711H01J2229/0744
    • A cathode ray tube including a color selecting, electrode having a plurality of metal tapes; a rectangular frame for holding the color selecting electrode under tension; a plate spring having one end fixed to the frame and the other end having an engaging hole; and a panel having a pin for engaging the engaging hole of the plate spring, the panel being held to the frame by the plate spring; wherein a resonance frequency of the plate spring is different from a resonance frequency of the metal tapes. Since the resonance frequency of the plate spring is different from the resonance frequency of the metal tapes, possible resonance of the metal tapes with a large amplitude by the vibrations of the plate spring due to external vibrations applied to the cathode ray tube can be prevented. Therefore, even though the color selecting electrode has a fine pitch with a large screen and a high definition, the cathode ray tube has vibration resistance to prevent color deviation or the like due to the vibrations.
    • 一种阴极射线管,包括具有多个金属带的选色电极; 用于将选色电极保持在张力下的矩形框架; 板簧,其一端固定在框架上,另一端具有接合孔; 以及具有用于接合所述板簧的接合孔的销的面板,所述面板通过所述板簧固定在所述框架上; 其特征在于,所述板簧的共振频率与所述金属带的共振频率不同。 由于板簧的共振频率与金属带的共振频率不同,因此可以防止由于施加到阴极射线管的外部振动引起的板簧的振动而导致的振幅大的金属带的可能谐振。 因此,即使选色电极具有大屏幕和高清晰度的细微间距,阴极射线管也具有抗振性,以防止颜色偏差等。