Electron gun assembly for on-board micro helmet display tube

机载微型头盔显示管用电子枪组件

Abstract

An electron gun assembly for an on-board micro helmet display tube belongs to the field of electro-vacuum display devices. The electron gun assembly comprises a flat-plate core column at one end of a tube housing , a negative adjustment assembly, an accelerating electrode, a focusing electrode and a positive electrode, wherein all the electrodes are enveloped through glass supporting rods and assembled into a whole; a graphite area on the inner wall of the tube housing replaces the positive electrode, so as to enable the caliber of an electron gun to be maximized; and a multi-point contact spring support tightly clamped on the inner wall of the tube housing is arranged at the upper part of one end of the tube housing. In the structure of the electron gun assembly for the on-board micro helmet display tube, the caliber of the lens of the designed electron gun is maximized, so that the display resolution ratio is increased; the internal guide wires of the core column are fastened by adopting metal strips; the whole electron gun and a glass housing are clamped by the aid of the core column and the spring support to form a whole, so that the shock resistance is increased; and the leading wires of all the electrodes adopt totally-enclosed flexible leading-out wires.
一种机载微型头盔显示管用电子枪组件,属于电真空显示器件领域,包括位于管壳一端的平板芯柱、阴调组件、加速极、聚焦极和阳极,各电极由玻璃支杆嵌封,装配成一体,将管壳内壁上的石墨区域代替阳极,使电子枪口径达到最大;设置在管壳一端上部的为紧卡于管壳内壁多点接触的弹簧支架。该机载微型头盔显示管用电子枪组件结构中,所设计的电子枪透镜口径大到极限,提高了显示的分辨率;芯柱的内导丝采用金属条加固;整个电子枪依靠芯柱和弹簧支架与玻壳卡紧形成整体,增强了抗震能力。各电极引线采用了全封闭的软引出线。

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