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    • 5. 发明申请
    • Indirectly heated cathode and cathode ray tube having same
    • 具有相同的间接加热的阴极射线管和阴极射线管
    • US20060145586A1
    • 2006-07-06
    • US10546562
    • 2004-03-15
    • Mika Yamagishi
    • Mika Yamagishi
    • H01J1/20
    • H01J29/04H01J1/14H01J1/20
    • An indirectly heated cathode includes a cathode sleeve (2) housing a heater (1), a caplike base (3) attached onto the cathode sleeve (2), and an electron emitter layer (4) formed on a surface of the base (3). The cathode sleeve (2) is made of a metal material that contains nickel and chromium as main components and further contains at least silicon, aluminum, cerium, and lanthanum. According to this construction, the cathode sleeve (2) is kept from heat deformation. Hence a reliable indirectly heated cathode which suppresses variations in cutoff voltage can be realized.
    • 间接加热的阴极包括容纳加热器(1)的阴极套管(2),附接到阴极套筒(2)上的帽状基部(3)和形成在基底(3)的表面上的电子发射体层 )。 阴极套筒(2)由含有镍和铬作为主要成分的金属材料制成,并且至少包含硅,铝,铈和镧。 根据该结构,阴极套筒(2)不受热变形。 因此,可以实现抑制截止电压变化的可靠的间接加热的阴极。