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The blue LED element covered with a uniform fluorescent layer results in a compact white high-power LED with little color variation. Application of this technology is likely to bring forward the development of new applications, such as LED-based lighting and camera flashes.
An LED produced on a sapphire substrates based on current primary technology suffers problems with light emission efficiency due to the difference in refractive index between the substrates and the light-emitting layer. Poor heat dissipation properties tend to result in saturation of output at high currents. The conventional fluorescence application process generates unevenness in the white color, and the large volume of the white light-emitting body limits the optical design possibilities of the lens.

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