Patent ID: 6353283
Filing Date: 2002-03-05
Classification: C03B,H01J

Abstract:
A glass envelope for a cathode ray tube comprising a panel member having a thickness (t) defined by the equation:(&sgr;)P=kP(a/t)2 wherein (&sgr;)P is the net tensile stress in the panel,(a) is one half the length of the minor axis in inches, (t) is the panel thickness in inches, (P) is atmospheric pressure in psi, (k) is a structural constant based on tube geometry, the panel having a net tensile stress not exceeding 1150 psi, having a surface compression induced during panel manufacture, and having an implosion protection band shrink-fitted around a skirt on the panel that augments surface compression in the panel, whereby the panel thickness is substantially less than that of a corresponding untreated tube envelope.