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    • 2. 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
    • Cathode-ray tube with electric field correction lens for improved
resolution
    • 具有电场校正透镜的阴极射线管,以提高分辨率
    • US5539285A
    • 1996-07-23
    • US250539
    • 1994-05-31
    • Yukinobu IguchiNobuya Okano
    • Yukinobu IguchiNobuya Okano
    • G09G1/00H01J29/50H01J29/96G09G1/04
    • G09G1/00H01J29/503H01J29/96H01J2229/4841
    • A cathode ray tube includes a sixth grid (G.sub.6), which is a final accelerating electrode, of first to sixth grids (G.sub.1 to G.sub.6) forming an electron gun and the sixth grid (1) is divided into three electrodes (G.sub.6a, G.sub.6b and G.sub.6c). Longitudinally oblong opening portions (9 and 11) are formed through the first and third electrodes (G.sub.6a and G.sub.6c), and a laterally oblong opening portion (10) is formed through the second electrode (G.sub.6b). A dynamic voltage is supplied to the electrode (G.sub.6b) through a neck capacitor (19) formed at a neck portion (2a) of the cathode-ray tube (2) to thereby form a quadrupole-lens electric field (7) for correction of deformation of a beamspot on the side of a deflection yoke relative to a main-lens electric field (8).
    • 阴极射线管包括形成电子枪的第一至第六栅极(G1〜G6)的最终加速电极的第六栅极(G6),第六栅极(1)分为三个电极(G6a,G6b, G6c)。 通过第一和第三电极(G6a和G6c)形成纵向长圆形开口部分(9和11),并且通过第二电极(G6b)形成横向长方形的开口部分(10)。 通过形成在阴极射线管(2)的颈部(2a)上的颈部电容器(19)向电极(G6b)供给动态电压,从而形成四极透镜电场(7),用于校正 偏转线圈相对于主透镜电场(8)侧的光斑的变形。