Invention Grant
US07960909B2 Light-emitting device, method for producing the same and fluorescent device 有权
发光装置及其制造方法及荧光装置

Light-emitting device, method for producing the same and fluorescent device
Abstract:
A light-emitting device assured of high reliability, high efficiency and high color rendering, is provided. The light-emitting device includes a frame, an LED chip provided on the frame, and a fluorescent layer containing an inorganic fluorescent material and an organic fluorescent material and being provided on the LED chip. In the fluorescent layer, the concentration of the inorganic fluorescent material is decreased toward the top from the bottom of the fluorescent layer, and the concentration of the organic fluorescent material is decreased toward the bottom from the top of the fluorescent layer.
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