遠(yuǎn)程熒光粉提供白光LED替代品

　　白光LED是由許多LED燈具的核心組成的，它是由LED的藍(lán)光和熒光燈中的黃色光混合而成的。當(dāng)多個(gè)發(fā)光二極管組合在一個(gè)固定裝置中時(shí)，白色固態(tài)燈可以產(chǎn)生足夠的照明，以與白熾燈泡相媲美，而工作效率更高，持續(xù)時(shí)間更長(zhǎng)。

　　然而，在追求更大功效的同時(shí)，白光LED卻成為絆腳石。這種熒光粉離模具很近，一些材料的光子直接回到LED中被吸收，大大降低了發(fā)光亮度。

　　本文描述了解決這個(gè)問題的另一種技術(shù)的發(fā)現(xiàn)和商業(yè)化。被稱為“遠(yuǎn)程熒光粉，“技術(shù)現(xiàn)在提供給設(shè)計(jì)師們希望提高自己產(chǎn)品的功效，而受益于一種材料的優(yōu)點(diǎn)，可以注塑成各種形狀以提高照明美學(xué)。

　　Chasing efficacy

　　LEDs are still a young technology， but one that is maturing quickly. In the lighting sector， for example， analyst DisplaySearch notes that while LED penetration was limited to just 1.4 percent in 2010， it is set to expand to 9.6 percent by 2014.1

　　This rapid increase in market share is in part due to falling prices and， in part， due to improving efficacy. This means that fewer， less-expensive LEDs are required per fixture to generate the same luminosity as the devices of several years ago （or the same number can produce a much brighter light for the same power input）.