Measuring head for determining the color purity and the converge

Details Measuring head for determining the color purity and the converge Measuring head for determining the color purity and the converge

1983-02-16

1985-11-05

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 962

Patent

active

045517487

ABSTRACT:
A measuring head serving to determine both the color purity and the convergence in color TV picture tubes with a specially shaped diaphragm aperture, with the distance of the brightness sensors being adapted to the mutual spacing of the phosphor stripes, permits a wide positioning tolerance when placed in front of the screen of the picture tube. Moreover, to make the determination of the convergence more accurate, the output signal of the measuring head is such that it can be made independent of the influence of the intensity and of the time dependence of the brightness signals.

REFERENCES:
patent: 3309459 (1967-03-01), Donigian
patent: 4159484 (1979-06-01), Strathman
patent: 4364079 (1982-12-01), Pons
patent: 4441120 (1984-04-01), Gerritsen

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