Phosphorus - led to compensate for an insufficient proportion of red light

摘要

A light emitting device and a method for the production of the component using an additional fluorescent material, which is a secondary light radiation in the red spectral range of visible light spectrum, around the red color component of the composite output to increase light radiation. The secondary light radiation from the additional fluorescent material makes it possible that the component a, "white " output light radiation is generated, which is a true color with respect to the color for administration applications is compensated for again very. The additional fluorescent material in a fluorescent layer which is received between a chip and a lens of the component is positioned. The chip is preferably a gan - based chip, of the light radiation with a of 470 nm. The fluorescent layer further comprises a main fluorescence material. The main fluorescence material is preferably a cerium - activated and gadolinium - doped yag - phosphor material. In the case of a first preferred embodiment, the additional fluorescent layer which a compound which, by means of doping of the ce: yag - phosphor material with trivalent ions of praseodymium (pr) is generated.