Phosphors in a sentence

Halophosphate-based phosphors replaced beryllium-based phosphors after beryllium was found to be toxic. citation Electrolysis of a mixture of beryllium fluoride and sodium fluoride was used to isolate beryllium during the 19th century.

The two classes of europium-based phosphor (red and blue), combined with the yellow/green terbium phosphors give "white" light, the color temperature of which can be varied by altering the proportion or specific composition of the individual phosphors.

Typical VFD phosphors emit a broad spectrum of greenish-white light, permitting use of color filters, though different phosphors can give other colors even within the same display.

Among the challenges being faced to improve the efficiency of LED-based white light sources is the development of more efficient phosphors.

Depending on the color of the original LED, phosphors of different colors can be employed.

From the perspective of value, however, applications in phosphors and magnets are more important.

Gadolinium(III) salts have therefore been used as green phosphors in various applications.

Health concerns Ionizing radiation CRTs can emit a small amount of X-ray radiation as a result of the electron beam's bombardment of the shadow mask/aperture grille and phosphors.

However, using different phosphors (fluorescent materials) it also became possible to instead produce green and red light through fluorescence.

Improvements since then have largely been better phosphors, longer life, and more consistent internal discharge, and easier-to-use shapes (such as compact fluorescent lamps).

Liu, Guokui and Jacquier, Bernard (eds) (2006) Spectroscopic Properties of Rare Earths in Optical Materials, Springer Doping these with other lanthanide elements produces phosphors.

Other uses in electronics include phosphors in fluorescent lamps and solid-state light-emitting diodes (LEDs).

Phosphors are available with persistences ranging from less than one microsecond to several seconds. citation For visual observation of brief transient events, a long persistence phosphor may be desirable.

Phosphors with lanthanide dopants are also widely used in cathode ray tube technology such as television sets.

Remote phosphors provide more diffuse light, which is desirable for many applications.

Secondly, each beam must only strike the phosphors of the color it is intended to strike and no others.

Since that time, phosphors and phosphorescence were used loosely to describe substances that shine in the dark without burning.

Starting in the late 1950s, picture tube phosphors would sacrifice saturation for increased brightness; this deviation from the standard at both the receiver and broadcaster was the source of considerable color variation.

The Chromatron used a set of focusing wires to select the colored phosphors arranged in vertical stripes on the tube.

The remaining 5% went into such uses as phosphors, metallurgy, and chemotherapy.