L-shaped support structure for tensioned shadow mask

Details L-shaped support structure for tensioned shadow mask L-shaped support structure for tensioned shadow mask

H - Electricity

01

J

313/35.165

H01J 29/07 (2006.01)

Patent

CA 1285598

ABSTRACT OF THE DISCLOSURE An improved front assembly for a color cathode ray tube having a tension foil shadow mask is disclosed. The faceplate of the tube has on its inner surface a centrally disposed phosphor screen surrounded by a peripheral sealing area adapted to mate with a funnel. A shadow mask support structure secures a shadow mask in tension on the structure and spaces the shadow mask from the screen. The support structure is a generally L-shaped support member having one leg projecting from the faceplate and defining a ridge for securing the shadow mask to the support member. The other leg of the L-shaped support member projects along the screen for securing the support structure to the faceplate. Stiffening ribs span the legs of the support member.

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