H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 29/07 (2006.01)
Patent
CA 2189287
A color picture tube including a phosphor screen has a tensioned mask and a support frame, each of which is rectangular and has two long sides paralleling a central major axis and two short sides paralleling a central minor axis. The mask is cylindrically contoured, being curved along the major axis and straight along the minor axis. The support frame includes two first members paralleling the major axis and two second members attached to the ends of the first members and paralleling the minor axis. Each of the first members comprises a first part having two flanges, a first flange extending toward the screen and a second flange perpendicular to the first flange, in an L-shaped cross-section. The first flange varies in height along the first part, from a minimum height at the ends thereof to a maximum height at the center thereof. Each of the first members also comprises a second part which extends between the two flanges of the first part and forms a triangle therewith in cross-section.
Craig Wilson And Company
Thomson Consumer Electronics Inc.
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