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A scotophor is a material showing reversible darkening and bleaching when subjected to certain types of radiation. The name means dark bearer, in contrast
Scotophor
overall exposure to light obliterated them. Schulze named the substance "Scotophors" when he published his findings in 1719. He thought the discovery could
History_of_photography
CRT technology
conventional light-emitting phosphor layer on the face of the tube screen with a scotophor such as potassium chloride (KCl). KCl has the property that when a crystal
Direct-view bistable storage tube
Direct-view_bistable_storage_tube
Potassium compound and alternative to salt
such as zinc selenide.[citation needed] Potassium chloride is used as a scotophor with designation P10 in dark-trace CRTs, e.g. in the Skiatron.[citation
Potassium_chloride
Type of 1940s information display
tube (CRT) that replaces the conventional phosphor with some type of scotophor, typically potassium chloride. When hit by the electron beam from the
Skiatron
Luminescent substance
Radar PPI, old EKG monitors, early oscilloscopes P10 KCl Green-absorbing scotophor – – Long Dark-trace CRTs Radar screens; turns from translucent white to
Phosphor
American computer graphics company (1969–1999)
standard phosphor-based CRT, for the image would be retained on the CRT's scotophor layer of the screen until cleared by heating it. This type of CRT is very
Dicomed
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