"Телевидение при помощи катодных трубок"

General Means for Making Cathode Ray Energy Visible.

There are many proposed non -luminescence means for converting
cathode ray energy into visible image traces. Among the proposals
are light valves using : suspensions of opaque plate -like particles,"
Kerr cells,23 polarizable crystals,24 eidephors, 25 intermediate-film tech-
niques,26 electrostatic repulsion of fine powers,27 control of critical angle
of reflection,28 and scotophors.29 Other general image- forming methods
include incandescence under cathode rays30 and electrolytic control of
dyeing.31 Thus far, however, only cathodoluminescence and catho
dotenebrescence have found practical application in radar. Of these,
cathodoluminescence is unique in requiring only the primary cathode - ray beam for practical operation over a wide range of image repetition
frequencies from about 0.01 to 2000 or more scans per second. The
phenomenal scope of phosphors in being able to convert a wide energy
range of either corpuscular or undulatory excitants into the 1.5-
electron- volt -wide visible region of the spectrum is depicted in Figure
15 (see opposite page.) Cathodotenebrescence is probably the least
cumbersome of the other listed possibilities, requiring only a strong extraneous source of light and heat in addition to the primary cathode - ray beam. Present cathodotenebrescent radar CRT screens, however,
are limited to image repetition frequencies slower than about 0.1 scan
per second and are restricted to land or ship radars where additional
bulk and kilowatts of power are not unduly detrimental.