Front panel for color television tubes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 15, 1991
Grant Date -
N/A
app pub date -
Jul 25, 1989
filing date -
Jul 27, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed are a method for the fabrication of a color television tube as well as a front panel for trichromatic television tubes. The disclosure can be applied to the reception of high-definition television transmissions. According to the disclosure, the front panels designed for a high-definition television tube screen are elements of the group of surfaces defined by Z=.SIGMA.(C(i).multidot.x.sup.j(i) .multidot.y.sup.k(i) Z(i)=Co(i).multidot.F.sup.-(j(i)+k(i)-1) 100.multidot.ABS(Zn-Z)<5.multidot.Zd where Z is the dimension of a surface of the group, Zn the dimension of a test surface and Zd the dimension of the maximum value of the dimension of the surface. Co corresponds to a reference surface of the group.
First Claim
Family
International Classification(s)
Cited Art Landscape
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