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Коллеги, как вы думаете, что подразумевал автор под s"creening techniques", написав вот это (речь идет о путях повышения фотометрической яркости белой точки CRT-дисплеев):
"The introduction of the rare-earth red phosphor enabled whites of luminance about 50 cd/m2 to be attained on shadow-mask tubes. If the screen has the same luminance at all angles of viewing, this corresponds to the emission of about 50, or 160 lumens/m2. For a screen area 0.15 square metres, the total emission is therefore about 24 lumens. At 3 lumens per watt this
would require about 8 watts, or a beam current of about 0.3 milliamps at 25 kV anode voltage. Subsequent improvements to the phosphors, such as the use of europium activated yttrium oxy-sulphide for the red, and copper activated zinc cadmium sulphide for the green, made whites of about 85 cd/m2 attainable, and slight modifications to the chromaticities used, and
improved screening techniques, have further increased the luminance to about 120 cd/m2
(Wright, 1971)."
Что имеется в виду под "screening techniques"? Какие-то изыски с разверткой? Или что?
Спасибо.
"The introduction of the rare-earth red phosphor enabled whites of luminance about 50 cd/m2 to be attained on shadow-mask tubes. If the screen has the same luminance at all angles of viewing, this corresponds to the emission of about 50, or 160 lumens/m2. For a screen area 0.15 square metres, the total emission is therefore about 24 lumens. At 3 lumens per watt this
would require about 8 watts, or a beam current of about 0.3 milliamps at 25 kV anode voltage. Subsequent improvements to the phosphors, such as the use of europium activated yttrium oxy-sulphide for the red, and copper activated zinc cadmium sulphide for the green, made whites of about 85 cd/m2 attainable, and slight modifications to the chromaticities used, and
improved screening techniques, have further increased the luminance to about 120 cd/m2
(Wright, 1971)."
Что имеется в виду под "screening techniques"? Какие-то изыски с разверткой? Или что?
Спасибо.