公开(公告)号：US06597102B2

公开(公告)日：2003-07-22

申请号：US10119860

申请日：2002-04-11

申请人： Tsunehiko Sugawara ,  Mikio Miyamoto ,  Toshihiro Ohashi ,  Takahiro Murakami

发明人： Tsunehiko Sugawara ,  Mikio Miyamoto ,  Toshihiro Ohashi ,  Takahiro Murakami

IPC分类号： H01J3100

CPC分类号： H01J29/86 ,  H01J29/87

摘要： A glass bulb for a cathode ray tube comprising a panel portion having a substantially rectangular face portion and a funnel portion having a neck portion, wherein when the glass bulb is used for a cathode ray tube, the glass bulb at least regionally suffers from a tensile stress resulting from the atmospheric pressure on the outer surface of the glass bulb having a vacuum inside, at least part of the face portion of the panel portion where the tensile stress over the face portion has a maximum value &sgr;VP has a compressive stress layer formed by chemical tempering on the outer surface, and the &sgr;VP, the magnitude of the compressive stress on the compressive stress layer &sgr;C MPa, and the thickness of the compressive stress layer tC &mgr;m satisfy the following relationship: 120/tC≧(1−|&sgr;VP/&sgr;C|)>30/tC provided that &sgr;VP≧20 MPa.

摘要翻译： 一种用于阴极射线管的玻壳，包括具有基本矩形面部分的面板部分和具有颈部的漏斗部分，其中当玻璃灯泡用于阴极射线管时，玻璃灯泡至少在区域上受到拉伸 由于内部有真空的玻璃泡的外表面的大气压力引起的应力，面部的表面部分的拉伸应力的最大值为σVP的面板部的面部的至少一部分具有压缩应力层， 外表面的化学回火，σVP，压应力层压缩应力σcMPa的压缩应力的大小以及压应力层tC mum的厚度满足以下关系：条件是σVP> = 20MPa。