摘要:
A cathode ray tube includes a rectangular panel on which a phosphor screen is formed, a cylindrical neck in which an electron gun is disposed, and a funnel formed contiguous to the panel. The funnel includes a cone part whose interior surface has a circular section at the position contiguous to the neck. The circular section is deformed from the neck side to the panel side to have a non-circular section having a maximum diameter along a direction other than the horizontal and vertical axis, and distances from a funnel axis to interior surface of the cone part are non-linearly increases or decreases, and the vertical interior surface is convexed to the funnel axis with fulfilling the following condition, &Dgr;H/rd
摘要:
A cathode ray tube includes a panel with an inner phosphor screen and a rear portion. A funnel is connected to the rear portion of the panel. The funnel is sequentially provided with a body having a large-sized end and a small-sized end, and a cone portion having a large-sized end and a small-sized end. The large-sized end of the body is sealed to the rear portion of the panel. The small-sized end of body meets the large-sized end of the cone portion at a point. A neck is sealed to the small-sized end of the cone portion. The funnel is structured to satisfy the following condition: 1.16≦(D/2)/tan((&psgr;/2))/(FG−TN)≦1.35 where D indicates the size of an effective area of the phosphor screen, FG indicates the distance between the large-sized end of the body and a final accelerating electrode of an electron gun fitted in the neck, TN indicates the distance between the small-sized end of the cone portion and the inflection point of the funnel, and &psgr; indicates an electron beam deflection angle.
摘要:
A cathode ray tube includes a faceplate panel having a substantially flat exterior surface and a substantially concave interior surface, and a phosphor screen formed on the interior surface of the faceplate panel. The phosphor screen has a horizontal axis, a vertical axis and a diagonal axis. A length from a central portion of the phosphor screen to a point where a vertical side line of the phosphor screen intersects the horizontal axis is less than a length from the central portion of the phosphor screen to a point where the vertical side line intersects the diagonal axis.
摘要:
A method of manufacturing a cathode ray tube includes the steps of providing a stem with a flange having an outer diameter smaller than an inner diameter of a bottom end of the neck, performing a sealing operation between the stem and the neck in such a state that a bottom side of the flange is in a position, externally distant from the bottom end of the neck less than a thickness (mm) of the flange while internally distant from it less than twice the thickness of the flange, and moving the stem downward during the sealing operation so as to elongate the sealed portion of the neck, thereby preventing it from being deflated.
摘要:
A color picture tube having an in-line electron gun includes a front panel, a funnel sealed to the rear of the panel, a neck connected to the rear of the funnel and provided with an internal in line electron gun and a plurality of electrodes for focusing and accelerating electron beams emitted from the electron gun, and a deflection yoke mounted around the funnel to scan the electron beams across the screen of the panel. An outer diameter NO of the neck is defined by 22.5 mm
摘要翻译:具有一字形电子枪的彩色显象管包括前面板,密封在面板后部的漏斗,连接到漏斗后部并具有内部一字排电子枪的颈部和多个用于 聚焦和加速从电子枪发射的电子束,以及安装在漏斗周围的偏转线圈,以跨过面板的屏幕扫描电子束。 颈部的外径NO由22.5mm×24.0mm定义,并且电极的相邻导光孔的中心与颈部的外径NO之间的距离P之间的关系由4.1 < NO / P <5.4。