H - Electricity – 01 – J
Patent
H - Electricity
01
J
316/9, 313/35.5
H01J 29/87 (2006.01)
Patent
CA 1283691
Abstract of the Disclosure A resin bonding system which bonds a substantially flat implosion protection panel to the nominally flat faceplate of a flat tension mask CRT tube and is cured by exposure to ultraviolet radiation. The resin bonding system is designed for differential adhesion so that the faceplate separates more easily from the resin than does the implosion protection panel, thus achieving superior implosion performance. It also incorporates a contrast-enhancing neutral density agent, preferably confined to a flat layer adjacent to and adhered to the flat surface of the implosion panel in order to achieve uniform neutral density filtration across the face of the tube. The neutral density agent is preferably an organic dye. Because the nominally flat faceplate is actually somewhat concave after evacuation of the tube, confining the neutral density agent to the layer which adheres to the flat faceplate avoids mottling of the CRT picture which would otherwise result from changes in the thickness of the pigmented layer across the face of the CRT.
543788
Macrae & Co.
Zenith Electronics Corporation
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