Definition von phosphors im Englisch Englisch wörterbuch
Materials that emit light when irradiated by cathode rays, or when placed in an electric field The quantity of visible light is proportional to the amount of excitation energy present
Chemical compounds that emit light when struck by a beam of electrons The amount of light emitted is proportional to the intensity of the electron beam RGB monitors use three different phosphors to produce red, green, and blue light
Particles coating the inside of the CRT screen Phosphors glow when struck by electrons to create the image you see on the screen After a beam leaves a phosphor dot, the phosphor continues to glow briefly This is called phosphor persistence Related terms: CRT
Tiny red, green, and blue grains on the inside surface of a CRT monitor that are illuminated when an electron beam is directed toward them
A chemical substance used in the production of selected stamps to activate machines that automatically cancel mail The machines react to the phosphor under ultraviolet light In 1959, Great Britain began to print phosphor lines on some of its stamps See also Tagging
A phosphorescent substance, such as zinc sulfide, which emits light when excited by radiation, as on the scope of a cathode-ray tube See phosphorescence
The special electrofluorescent coating used on the inside of a CRT screen that glows for a few milliseconds when struck by an electron beam Because the illumination is so brief, it must be refreshed constantly to maintain an image
is a material which is capable of emitting light It is used in fluorescent lamps, monitors etc The duration of the emission depends on the type of phosphor
Stamps are overprinted, inked or impregnated with phosphorescent or 'fluorescent' substances for use in electronic letter-facing and postmarking machines
The material used inside a monitor to create the display An electron beam scans the inside of a monitor and the phosphor absorbs it in the form of light patterns
A chemical substance that fluoresces when excited by x-rays, an electron beam, or ultraviolet radiation Phosphors are composed of rare earth oxides or halides (e g , gadolinium, lanthanum, yttrium) and usually emit green light with decay times ranging from hundreds of nanoseconds to a few milliseconds
Element arranged in triads or stripes (depending on use of shadowmask or aperture grille) of Red, Blue and Green and situated on the inside surface of the CRT The phosphors glow their respective colours when hit by an electron beam, creating the on-screen image
phosphors
Türkische aussprache
fäsfôrz
Aussprache
/ˈfäsˌfôrz/ /ˈfɑːsˌfɔːrz/
Etymologie
[ 'fäs-f&r, -"for ] (noun.) 1705. Latin phosphorus, from Greek phOsphoros, literally, light bringer, from phOsphoros light-bearing, from phOs light + pherein to carry, bring; more at FANCY, BEAR.