公开(公告)号：US3732457A

公开(公告)日：1973-05-08

申请号：US3732457D

申请日：1971-01-27

Applicant: VICTOR CO LTD

Inventor： UENO I ,  TOYA K

IPC: H01J31/20 ,  H01J3/02 ,  H01J29/48 ,  H01J29/50 ,  H01J29/62 ,  H01J29/81 ,  H01J31/12 ,  H01J29/80

CPC classification number: H01J29/506 ,  H01J3/029 ,  H01J29/488 ,  H01J31/12

Abstract: An electron gun for a post-acceleration picture tube comprises a first electrode to which a low voltage is applied, a second electrode to which a high voltage is applied and a third electrode to which an intermediate voltage is applied. The main lens of the electron gun is composed of the first, second and third electrodes. The electron gun is particularly useful in a post-acceleration shadow-mask type color picture tube.

Abstract translation: 用于后加速度显像管的电子枪包括施加低电压的第一电极，施加高电压的第二电极和施加有中间电压的第三电极。 电子枪的主透镜由第一，第二和第三电极组成。 电子枪在后加速度荫罩型彩色显像管中特别有用。