公开(公告)号：US20020041142A1

公开(公告)日：2002-04-11

申请号：US09899934

申请日：2001-07-09

Applicant: LG Electronics Inc.

Inventor： Gill Young Jung ,  Ki Bog Son

IPC: H01K001/00 ,  H01J001/00 ,  H01J019/00 ,  H01J001/53 ,  H01J001/88 ,  H01J019/42 ,  H01J029/46

CPC classification number: H01J29/02 ,  H01J29/485

Abstract: Disclosed is a cathode supporter for an electric gun in a CRT(Cathode Ray Tube), which can reduce an amount of expensive ceramics glass used, which is filled within the cathode supporter, by removing guide pipes from the cathode supporter, which is conventionally provide with the guide pipes through which guide pins of a beading jig are inserted, to decrease a horizontal length a of the cathode supporter. According to a preferred embodiment of the present invention, the electric gun includes three cathodes for radiating electron beams, a plurality of electrodes for controlling, accelerating and focusing the electron beams, and guide holes formed at both sides of some electrodes among the plurality of electrodes for allowing guide means to be inserted therethrough, wherein the horizontal length of the cathode supporter for supporting the cathodes are smaller than an inside horizontal length of the guide means to prevent any interference from being generated between the cathode supporter and the guide pins. Here, the inside horizontal length of the guide pins corresponds to an inside width W2 between the respective guide holes.

Abstract translation: 公开了一种CRT（阴极射线管）中的电动枪用阴极支撑体，通过从阴极支撑体上除去导管，可以减少填充在阴极支撑体内的昂贵的陶瓷玻璃的量， 通过引导管插入一个串珠夹具的导销，以减小阴极支撑件的水平长度a。 根据本发明的优选实施例，电动枪包括用于辐射电子束的三个阴极，用于控制，加速和聚焦电子束的多个电极以及形成在多个电极中的一些电极两侧的引导孔 用于允许引导装置插入其中，其中用于支撑阴极的阴极支撑件的水平长度小于引导装置的内部水平长度，以防止在阴极支撑件和引导销之间产生任何干扰。 这里，引导销的内部水平长度对应于各个导向孔之间的内部宽度W2。