Synonymer & Information om | Engelska ordet PHOSPHOR

Exempel på hur man kan använda PHOSPHOR i en mening

• Cathodoluminescence is an optical and electromagnetic phenomenon in which electrons impacting on a luminescent material such as a phosphor, cause the emission of photons which may have wavelengths in the visible spectrum.
• A phosphor is a substance that exhibits the phenomenon of luminescence; it emits light when exposed to some type of radiant energy.
• The original purpose of screensavers was to prevent phosphor burn-in on CRT or plasma computer monitors (hence the name).
• An electric current in the gas excites mercury vapor, to produce ultraviolet and make a phosphor coating in the lamp glow.
• June 4 - Sylvania in the United States unveils a revolutionary color TV picture tube in which europium-bearing phosphor allows a much brighter display.
• The phosphor was normally a very dark color, and lit up brightly when the electron beam hit it, appearing to be white, green, blue, or amber on a black background, depending on phosphors applied on a monochrome screen.
• The EDID data structure includes manufacturer name and serial number, product type, phosphor or filter type (as chromaticity data), timings supported by the display, display size, luminance data and (for digital displays only) pixel mapping data.
• Web colors have an unambiguous colorimetric definition, sRGB, which relates the chromaticities of a particular phosphor set, a given transfer curve, adaptive whitepoint, and viewing conditions.
• It was a 12″ monochrome (green) screen that could display 80×24 text characters and any type of graphics, however it suffered from a very slow phosphor refresh that resulted in a "ghosting" video effect.
• Since these circular tubes displayed rectangular images, the diagonal measurement of the visible rectangle was smaller than the diameter of the tube due to the thickness of the glass surrounding the phosphor screen, which was hidden from the viewer by the casing and bezel.
• The company innovated a product that uses phosphor to convert blue laser light to produce a broad-spectrum, incoherent, high luminance white light source.
• A separate (lower) charge differential accelerates the secondary electrons from the MCP until they hit a phosphor screen at the other end of the intensifier, which releases a photon for every electron.
• By modulating the electric potential between the plates, the electric field is quickly changed to give a time-varying deflection of the electrons, sweeping the electrons across a phosphor screen at the end of the tube.
• For most devices, the screen's phosphors quickly lose their excitation between sweeps of the electron gun, and the afterglow is unable to fill such gaps – see phosphor persistence.
• Some harmonica reeds are made of phosphor bronze, such as those by Suzuki Musical Instrument Corporation and Bushman Harmonicas.
• Tritium emits electrons through beta decay and, when they interact with a phosphor material, light is emitted through the process of phosphorescence.
• Improved phosphor formulations have improved the perceived color of the light emitted by CFLs, such that some sources rate the best "soft white" CFLs as subjectively similar in color to standard incandescent lamps.
• In June 1964, Sylvania unveiled a color TV picture tube in which europium-bearing phosphor was used for a much brighter, truer red than was possible before.
• As backscattered electrons leave the sample, they interact with the atoms and are both elastically diffracted and lose energy, leaving the sample at various scattering angles before reaching the phosphor screen forming Kikuchi patterns (EBSPs).
• Philips' main contribution after this was the invention of a phosphor coating on the weld of the filament to the molybdenum foil that reduces oxidization and early failures at that point, making that area capable of withstanding extreme heat.

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