H - Electricity
01
J
313/35.16
H01J 29/07 (2006.01) H01J 29/30 (2006.01)
Patent
CA 1076637
ABSTRACT OF THE DISCLOSURE In a cathode ray tube having a curved phosphor screen, a shadow mask having bored therein apertures and electron beam generating means for generating three in-line electron beams aligned in a horizontal direction, the apertures of the shadow mask arc aligned along barrel-shaped lines extending in a horizontal direction and are aligned along pin-cushioned lines extending in a vertical direction and the diameter distribution of the apertures is arranged so that the distribution of the electron beam trans- mission factor of the mask is concentric about the center of the mask.
84124
Ashiya Ryosuke
Fuse Yuzo
Naruse Yohsuke
Nii Takehiko
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