Getter flash shield
    1.
    发明授权
    Getter flash shield 有权
    吸气闪光屏蔽

    公开(公告)号:US06356015B2

    公开(公告)日:2002-03-12

    申请号:US09884116

    申请日:2001-06-19

    申请人: Eric P Davenport

    发明人: Eric P Davenport

    IPC分类号: H01J6104

    摘要: The invention is directed to an improved hollow cathode lamp (15). In the preferred embodiment, the lamp is comprised of a stem (23), a cathode lead (18) which passes through the stem, and a getter (26). The improvement includes a flash shield (28) positioned between the getter and the stem, whereby the flash shield will limit the deposit of getter metal on the stem when the getter flashes. The flash shield may be a circular disk and composed of nickel. The flash shield may include an evacuation passage (46). The flash shield may also be capable of being heated to about 1000° C. during flashing, whereby the flash shield may be heated so as to convectionally repel the getter metal when the getter flashes.

    摘要翻译: 本发明涉及一种改进的空心阴极灯(15)。 在优选实施例中,灯包括杆(23),穿过杆的阴极引线(18)和吸气器(26)。 该改进包括位于吸气剂和阀杆之间的闪光屏蔽(28),由此当吸气剂闪烁时,闪光屏蔽件将限制吸气剂金属沉积在阀杆上。 闪光屏蔽可以是圆盘,由镍组成。 闪光屏蔽可包括排气通道(46)。 闪光屏蔽还可以在闪光期间被加热到约1000℃,由此闪光屏蔽可以被加热,以便当吸气剂闪烁时对流地排斥吸气剂金属。